CN203129236U - Universal Yanmar engine for excavator - Google Patents
Universal Yanmar engine for excavator Download PDFInfo
- Publication number
- CN203129236U CN203129236U CN 201320121328 CN201320121328U CN203129236U CN 203129236 U CN203129236 U CN 203129236U CN 201320121328 CN201320121328 CN 201320121328 CN 201320121328 U CN201320121328 U CN 201320121328U CN 203129236 U CN203129236 U CN 203129236U
- Authority
- CN
- China
- Prior art keywords
- potentiometer
- shell
- cavity volume
- cable wire
- steel cable
- 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
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The utility model discloses a universal Yanmar engine for an excavator. The technical scheme includes that the universal Yanmar engine comprises a shell, a gear assembly, a micro-motor and a potentiometer, the gear assembly comprises a planet gear, a planet carrier and a sun gear, the micro-motor is in linkage with the sun gear, the planet gear is in linkage with a steel cable pulley, the steel cable pulley is in linkage with a steel cable, the shell comprises an upper shell and a lower shell, the upper shell and the micro-motor are respectively arranged on two sides of the lower shell, the gear assembly is arranged in an accommodating cavity of the lower shell, the potentiometer is arranged in an accommodating cavity of the upper shell and is connected with the steel cable pulley in a linkage manner, the micro-motor is electrically connected with the potentiometer, a positioning cover used for preventing the steel cable pulley from moving towards one side of the upper shell is fixedly arranged in the accommodating cavity of the lower shell, and the lower shell is provided with a sunken portion used for preventing the steel cable pulley from moving towards one side of the micro-motor. The steel cable pulley is axially positioned under the joint action of the positioning cover and the sunken portion and cannot axially move even if the universal Yanmar engine vibrates during operation, and accordingly the opening of an accelerator can be accurately controlled.
Description
Technical field
The utility model relates to the general foreign horse that a kind of excavator is used.
Background technology
The general foreign horse that excavator is used, generally include housing, gear assembly, micro machine and be used for the potentiometer of feedback throttle position signal, described gear assembly comprises planetary gear, planet carrier and central gear, micro machine and central gear are connected, be connected cable wire wheel of described planetary gear, the cable wire wheel is connected and is useful on the steel cable rope that connects throttle, described housing comprises upper shell and the lower house that all has cavity volume, upper shell and micro machine place the both sides of lower house respectively, described gear assembly places in the cavity volume of lower house, described potentiometer places in the cavity volume of upper shell, described potentiometer and cable wire wheel are connected, and micro machine is electrically connected by lead with potentiometer.Operating principle is: micro machine receives the rotation of signal of telecommunication driven gear assembly, and changes by gear rotation drive cable wire wheel, and the cable wire wheel is done the backguy stretching motion to steel cable rope, controls the throttle size, and feeds back throttle position signal by the potentiometer that carries.
Because be to take turns to drive steel cable rope by cable wire to do the backguy stretching motion, thereby control throttle size, the accuracy of cable wire wheel motion is just quite crucial so.Traditional general foreign horse just places the cable wire wheel in the cavity volume of housing simply, because general foreign horse can produce vibrations unavoidably in work, this just may cause the cable wire wheel to produce vibrations at axial direction, thereby can't accurately control the throttle size.
The utility model content
At the deficiency that prior art exists, the general foreign horse that provides a kind of excavator that can accurately control the throttle size to use is provided the purpose of this utility model.
For achieving the above object, the utility model provides following technical scheme: the general foreign horse that a kind of excavator is used, comprise housing, gear assembly, micro machine and be used for the potentiometer of feedback throttle position signal, described gear assembly comprises planetary gear, planet carrier and central gear, micro machine and central gear are connected, be connected cable wire wheel of described planetary gear, the cable wire wheel is connected and is useful on the steel cable rope that connects throttle, described housing comprises upper shell and the lower house that all has cavity volume, upper shell and micro machine place the both sides of lower house respectively, described gear assembly places in the cavity volume of lower house, described potentiometer places in the cavity volume of upper shell, described potentiometer and cable wire wheel are connected, micro machine is electrically connected by lead with potentiometer,: also be installed with in the cavity volume of described lower house and prevent the cable wire wheel towards the location of upper shell one side shifting lid, described lower house is provided be used to preventing the depressed part of cable wire wheel towards micro machine one side shifting.
By adopting technique scheme, the common formation of location lid and depressed part is to the axial location of cable wire wheel, even general foreign horse produces vibrations in the process of work, cable wire is taken turns can not produce axial displacement, so can accurately control the throttle size.
The utility model further is set to: described potentiometer comprises the potentiometer shell of being with cavity volume, be provided with the potentiometer rotating shaft in the cavity volume of potentiometer shell, the potentiometer bearing, resistance board and sliding contact, described potentiometer rotating shaft partly is placed on outside the potentiometer shell, the potentiometer rotating shaft places the end in the potentiometer shell cavity volume to be installed on the potentiometer bearing, and be provided with sliding bearing between potentiometer rotating shaft and the potentiometer shell, described sliding contact and potentiometer rotating shaft are connected, and sliding contact is conflicted with resistance board and is connected, the opposite side of the corresponding sliding contact of resistance board is provided with the wire connecting portion of installing for lead, be filled with resin extender in the cavity volume of described potentiometer shell, described resin extender is covered with the opposite side at the corresponding sliding contact of resistance board.
By adopting technique scheme, can avoid foreign matter to enter the potentiometer enclosure, make contacting of sliding contact and resistance board keep sensitivity and accuracy, thereby make the accuracy of throttle position signal of potentiometer feedback.
Description of drawings
The structural representation of the general foreign horse embodiment that Fig. 1 uses for the utility model excavator;
Fig. 2 is the A portion enlarged drawing of Fig. 1;
Fig. 3 is the structural representation of housing and micro machine;
Fig. 4 is potentiometric structural representation.
The specific embodiment
The general foreign embodiment that uses referring to figs. 1 through the utility model excavator of Fig. 4 is described further.
The general foreign horse that a kind of excavator is used, comprise housing 1, gear assembly 2, micro machine 3 and be used for the potentiometer 4 of feedback throttle position signal, described gear assembly 2 comprises planetary gear 21, planet carrier 22 and central gear 23, micro machine 3 is connected with central gear 23, the described planetary gear 21 cable wire wheel 5 that has been connected, cable wire wheel 5 is connected and is useful on the steel cable rope 6 that connects throttle, described housing 1 comprises upper shell 11 and the lower house 12 that all has cavity volume, upper shell 11 and micro machine 3 place the both sides of lower house 12 respectively, described gear assembly 2 places in the cavity volume of lower house 12, described potentiometer 4 places in the cavity volume of upper shell 11, described potentiometer 4 is connected with cable wire wheel 5, micro machine 3 is electrically connected by lead 8 with potentiometer 4,: also be installed with in the cavity volume of described lower house 12 and prevent cable wire wheel 5 towards the location of upper shell 11 1 side shiftings lid 7, described lower house 12 is provided be used to preventing cable wire wheel 5 depressed parts 121 towards micro machine 3 one side shiftings.
By adopting technique scheme, the location cover 7 and the depressed part 121 common axial location that constitute cable wire wheel 5, even general foreign horse produces vibrations in the process of work, cable wire takes turns 5 can not produce axial displacement, so can accurately control the throttle size.
Described potentiometer 4 comprises the potentiometer shell 41 of being with cavity volume, be provided with potentiometer rotating shaft 42 in the cavity volume of potentiometer shell 41, potentiometer bearing 43, resistance board 44 and sliding contact 45, described potentiometer rotating shaft 42 parts are placed on outside the potentiometer shell 41, potentiometer rotating shaft 42 places the end in potentiometer shell 41 cavity volumes to be installed on the potentiometer bearing 43, and be provided with sliding bearing 46 between potentiometer rotating shaft 42 and the potentiometer shell 41, described sliding contact 45 is connected with potentiometer rotating shaft 42, and sliding contact 45 is conflicted with resistance board 44 and is connected, the opposite side of resistance board 44 corresponding sliding contacts 45 is provided with the wire connecting portion of installing for lead 8 47, be filled with resin extender 48 in the cavity volume of described potentiometer shell 41, described resin extender 48 is covered with the opposite side at resistance board 44 corresponding sliding contacts 45.
By adopting technique scheme, can avoid foreign matter to enter potentiometer shell 41 inside, make contacting of sliding contact 45 and resistance board 44 keep sensitivity and accuracy, thereby make the accuracy of throttle position signal of potentiometer 4 feedbacks.
Claims (2)
1. general foreign horse that excavator is used, comprise housing, gear assembly, micro machine and be used for the potentiometer of feedback throttle position signal, described gear assembly comprises planetary gear, planet carrier and central gear, micro machine and central gear are connected, be connected cable wire wheel of described planetary gear, the cable wire wheel is connected and is useful on the steel cable rope that connects throttle, described housing comprises upper shell and the lower house that all has cavity volume, upper shell and micro machine place the both sides of lower house respectively, described gear assembly places in the cavity volume of lower house, described potentiometer places in the cavity volume of upper shell, described potentiometer and cable wire wheel are connected, micro machine is electrically connected by lead with potentiometer, it is characterized in that: also be installed with in the cavity volume of described lower house and prevent the cable wire wheel towards the location of upper shell one side shifting lid, described lower house is provided be used to preventing the depressed part of cable wire wheel towards micro machine one side shifting.
2. the general foreign horse used of excavator according to claim 1, it is characterized in that: described potentiometer comprises the potentiometer shell of being with cavity volume, be provided with the potentiometer rotating shaft in the cavity volume of potentiometer shell, the potentiometer bearing, resistance board and sliding contact, described potentiometer rotating shaft partly is placed on outside the potentiometer shell, the potentiometer rotating shaft places the end in the potentiometer shell cavity volume to be installed on the potentiometer bearing, and be provided with sliding bearing between potentiometer rotating shaft and the potentiometer shell, described sliding contact and potentiometer rotating shaft are connected, and sliding contact is conflicted with resistance board and is connected, the opposite side of the corresponding sliding contact of resistance board is provided with the wire connecting portion of installing for lead, be filled with resin extender in the cavity volume of described potentiometer shell, described resin extender is covered with the opposite side at the corresponding sliding contact of resistance board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320121328 CN203129236U (en) | 2013-03-15 | 2013-03-15 | Universal Yanmar engine for excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320121328 CN203129236U (en) | 2013-03-15 | 2013-03-15 | Universal Yanmar engine for excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203129236U true CN203129236U (en) | 2013-08-14 |
Family
ID=48937230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320121328 Expired - Fee Related CN203129236U (en) | 2013-03-15 | 2013-03-15 | Universal Yanmar engine for excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203129236U (en) |
-
2013
- 2013-03-15 CN CN 201320121328 patent/CN203129236U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20150315 |
|
| EXPY | Termination of patent right or utility model |