CN201151927Y - Loading apparatus mobile arm caging device - Google Patents
Loading apparatus mobile arm caging device Download PDFInfo
- Publication number
- CN201151927Y CN201151927Y CNU2007200606657U CN200720060665U CN201151927Y CN 201151927 Y CN201151927 Y CN 201151927Y CN U2007200606657 U CNU2007200606657 U CN U2007200606657U CN 200720060665 U CN200720060665 U CN 200720060665U CN 201151927 Y CN201151927 Y CN 201151927Y
- Authority
- CN
- China
- Prior art keywords
- loading arm
- stopping means
- electromagnetic valve
- travel switch
- loader
- 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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- Component Parts Of Construction Machinery (AREA)
- Operation Control Of Excavators (AREA)
Abstract
The utility model relates a positioning device of a loader boom which is characterized in that the positioning device comprises an electromagnetic valve for controlling the reposition of the loader boom and a travel switch that is arranged on a loader frame which is connected with the loader boom. The travel switch is arranged on an upper limit position on which the loader boom usually works and is connected in series with the electromagnetic valve. The frame is also provided with a travel switch which is arranged on a lower limit position on which the loader boom usually works and connected in series with the electromagnetic valve. The two travel switches are connected in parallel or in series. The upper limit position on which the loader boom usually works is the highest position to which the boom rises. With the positioning device adopted, a driver can be promoted to operate rapidly. No experience is required for the estimation that whether the loader boom is at a high position state. Thus, the fuel consumption differences are caused to avoid wastes. Therefore, the service life of an engine can be improved effectively, and better oil-saving effect is provided.
Description
Technical field
The utility model relates to a kind of servicing unit of loading arm, especially the stopping means of loading arm.
Background technology
Loader generally is made up of walking cell mesh, loading and unloading cell mesh, wherein load and unload cell mesh mainly by swing arm rise and fall, scraper bowl overturns and finishes.Swing arm rises and falls and the control of reciprocating double-action hydraulic cylinder is all adopted in the scraper bowl rotation usually.In real work, when swing arm rises to the extreme higher position, the oil pressure in the middle of oil pressure wherein is much higher than, and this moment, the operator only can estimate whether to be in the extreme higher position by rule of thumb, cause different users's oil consumption difference obvious, thereby caused certain waste.
Summary of the invention
The purpose of this utility model provides and stops swing arm automatically before a kind of loading arm is in high oil pressure, can impel pilot control convenient and swift, in the life-span of effectively improving motor, has the stopping means of better oil-saving effect loading arm.
The purpose of this utility model is achieved through the following technical solutions.
A kind of stopping means of loading arm, it is characterized in that: described stopping means comprise control loading arm return electromagnetic valve, be installed in vehicle frame that loading arm is connected on travel switch, the trip switch is arranged on the loading arm upper limit position of work usually, and connects with electromagnetic valve.
The one stroke switch also is installed on the described vehicle frame, and the trip switch is arranged on the loading arm lower position of work usually, and connects with electromagnetic valve.
Described two travel switch parallel connections.
Described two travel switches series connection.
Described stopping means also comprises a buzzer, connects with electromagnetic valve.
Described buzzer is installed in the driver's cabin of loader.
The described loading arm upper limit position of work usually is the position that swing arm rises to highest point.
The utlity model has following advantage:
Owing to be provided with travel switch in the upper limit position place of work usually at loading arm, so when loading arm runs to upper limit position, oil pressure is in the high oil pressure condition, at this moment travel switch action, electromagnetic valve is also moved, swing arm stops action, thereby can impel the driver fast to handle, and do not need by virtue of experience to estimate whether be in high-end trim, the oil consumption difference that causes the different users thus, therefore the waste that causes this shows, can improve the life-span of motor effectively, have better oil-saving effect.Particularly this upper limit position can be made as the position that swing arm rises to highest point, to improving the life-span of motor, has better oil-saving effect and has improved better assurance.
Usually also be provided with travel switch in the lower position of work at loading arm, when low oil pressure, when being operated in low oil consumption interval, reduce oil consumption.
Be provided with buzzer, can remind the operator better.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is circuit theory diagrams of the present utility model (one);
Accompanying drawing 3 is circuit theory diagrams of the present utility model (two).
The specific embodiment
Come the utility model is described in further detail below in conjunction with accompanying drawing:
As Fig. 1, as shown in Figure 2, the stopping means of loading arm comprise control loading arm 1 return electromagnetic valve 3, be installed in the travel switch XK1 on the vehicle frame 2 that is connected with loading arm 1, travel switch XK1 is arranged on loading arm 1 upper limit position of work usually, and connect with electromagnetic valve 3, carrier aircraft swing arm 1 upper limit position of work usually can be made as the position that swing arm 1 rises to highest point.One stroke switch XK2 also is installed on vehicle frame 2, and travel switch XK2 is arranged on loading arm 1 lower position of work usually, and also connects with electromagnetic valve 3.Travel switch XK1 is in parallel with travel switch XK2, and at this time two travel switches are in normally open, action during electromagnetic valve 3 energisings, and loading arm 1 stops action, as Fig. 2; Travel switch XK1 connects with travel switch XK2, and at this time two travel switches are in normally off, action during electromagnetic valve 3 outages, and loading arm 1 stops action, as Fig. 3.The buzzer 4 of also connecting on the circuit of electromagnetic valve 3, buzzer 4 can be installed in the driver's cabin of loader, can remind the operator better.
Claims (7)
1, a kind of stopping means of loading arm, it is characterized in that: described stopping means comprise control loading arm return electromagnetic valve, be installed in vehicle frame that loading arm is connected on travel switch, the trip switch is arranged on the loading arm upper limit position of work usually, and connects with electromagnetic valve.
2, the stopping means of loading arm according to claim 1 is characterized in that: the one stroke switch also is installed on the described vehicle frame, and the trip switch is arranged on the loading arm lower position of work usually, and connects with electromagnetic valve.
3, the stopping means of loading arm according to claim 2 is characterized in that: described two travel switch parallel connections.
4, the stopping means of loading arm according to claim 2 is characterized in that: described two travel switches series connection.
5, according to the stopping means of claim 3 or 4 described loading arms, it is characterized in that: described stopping means also comprises a buzzer, connects with electromagnetic valve.
6, the stopping means of loading arm according to claim 5 is characterized in that: described buzzer is installed in the driver's cabin of loader.
7, the stopping means of loading arm according to claim 6 is characterized in that: the described loading arm upper limit position of work usually is the position that swing arm rises to highest point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200606657U CN201151927Y (en) | 2007-12-04 | 2007-12-04 | Loading apparatus mobile arm caging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200606657U CN201151927Y (en) | 2007-12-04 | 2007-12-04 | Loading apparatus mobile arm caging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201151927Y true CN201151927Y (en) | 2008-11-19 |
Family
ID=40127605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200606657U Expired - Fee Related CN201151927Y (en) | 2007-12-04 | 2007-12-04 | Loading apparatus mobile arm caging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201151927Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666105B (en) * | 2009-07-08 | 2011-08-10 | 北汽福田汽车股份有限公司 | Method for controlling rising velocity of movable arm of excavator, control system and excavator |
| CN102888866A (en) * | 2012-11-05 | 2013-01-23 | 中外合资沃得重工（中国）有限公司 | Hydraulic circuit capable of accurately controlling lifting height of movable arm of excavator |
-
2007
- 2007-12-04 CN CNU2007200606657U patent/CN201151927Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666105B (en) * | 2009-07-08 | 2011-08-10 | 北汽福田汽车股份有限公司 | Method for controlling rising velocity of movable arm of excavator, control system and excavator |
| CN102888866A (en) * | 2012-11-05 | 2013-01-23 | 中外合资沃得重工（中国）有限公司 | Hydraulic circuit capable of accurately controlling lifting height of movable arm of excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081119 Termination date: 20100104 |