CN201786813U - Displacement detecting and displaying device for hydraulic cylinder of excavator - Google Patents
Displacement detecting and displaying device for hydraulic cylinder of excavator Download PDFInfo
- Publication number
- CN201786813U CN201786813U CN2010205413332U CN201020541333U CN201786813U CN 201786813 U CN201786813 U CN 201786813U CN 2010205413332 U CN2010205413332 U CN 2010205413332U CN 201020541333 U CN201020541333 U CN 201020541333U CN 201786813 U CN201786813 U CN 201786813U
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- hydraulic cylinder
- excavator
- oil hydraulic
- flowmeter
- displacement detecting
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Abstract
The utility model discloses a displacement detecting and displaying device for the hydraulic cylinder of the excavator, which belongs to the technical field of displacement detecting and displaying of the hydraulic cylinder. The utility model comprises a flow meter for detecting the flow of the hydraulic oil flowed into the hydraulic cylinder, a central processor connected with the flow meter for receiving the information and analyzed data of the flow meter, a display module connected with the central processor for displaying the displacement of the hydraulic cylinder, an alarming module connected with the central processor for alarming, and an electric power module for supplying power to each module. The utility model has advantages of high integration degree, little volume, low cost, direct installation without the need for changing the mechanical mechanism of the excavator in the prior art, no influence of the normal use of the excavator, decreasing conditions of breakage of the hydraulic rod inside the hydraulic cylinder.
Description
Technical field
The utility model relates to oil hydraulic cylinder displacement monitoring and Display Technique field, specifically is a kind of excavator oil hydraulic cylinder displacement detecting and display unit, is applicable to all kinds of oil hydraulic cylinder models.
Background technique
Along with improving constantly of industrial automation level, excavator shared ratio in engineering machinery constantly increases.Excavator does not in the market possess the function of real-time demonstration oil hydraulic cylinder present position, can only operate machines by driver's experiences.But often because the driver the concrete condition of not noting preceding necromancer stone, thereby excavate by force, cause the hydraulic rod fracture.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the utility model provides a kind of excavator oil hydraulic cylinder displacement detecting and display unit; Can in time oil hydraulic cylinder displacement situation be fed back to the driver, thereby judge timely, reduce situation generations such as excavator hydraulic rod fracture.
The utility model is realized with following scheme: a kind of excavator oil hydraulic cylinder displacement detecting and display unit comprise being used for detecting in real time the flowmeter that flows into hydraulic fluid flow rate in the oil hydraulic cylinder; Be connected the central processing unit (CPU) that is used to accept flowmeter information and analyzes data with flowmeter; Be connected the display modular that is used to show the oil hydraulic cylinder displacement with central processing unit (CPU); Be connected the alarm module that is used to report to the police with central processing unit (CPU); Give the power module of above-mentioned each module for power supply.
Working principle: utilize flowmeter to measure the flow that flows into hydraulic oil the oil hydraulic cylinder from hydraulic tube, central processing unit (CPU) is handled the data that flow measures, form with image shows on display modular then, the driver just can see the variation of oil hydraulic cylinder displacement by the display modular in the operator cabin, thereby effectively operate, avoided the generation of situations such as hydraulic rod fracture.
The beneficial effects of the utility model are: the level of integration height, and volume is little, and cost is low, and directly installation needn't change the existing machinery mechanism of excavator, does not influence the normal use of excavator, has reduced the situation of hydraulic rod fracture in the oil hydraulic cylinder.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is the utility model theory diagram;
Fig. 2 is the utility model circuit diagram.
Among the figure: 1, oil hydraulic cylinder; 2, hydraulic oil pipe.
Embodiment
As shown in Figure 1, excavator oil hydraulic cylinder displacement detecting is made up of flowmeter, the central processing unit (CPU) that is connected with flowmeter, the display modular that is connected with central processing unit (CPU), alarm module and power module five major parts with display unit.Flowmeter wherein: be used for measuring the flow that flows into oil hydraulic cylinder hydraulic oil from hydraulic tube; Central processing unit (CPU): be used to accept the information and the data analysis of flowmeter; Display modular: the oil hydraulic cylinder displacement is shown in real time; Alarm module:, give the alarm with prompting driver careful operation when oil hydraulic cylinder exceeds certain limit; Power module: working power is provided for each module.Flowmeter is installed on the hydraulic oil pipe 2 that is connected with oil hydraulic cylinder 1, does not influence the normal use of excavator.
As shown in Figure 2, flowmeter adopts nest street flowmeter, and nest street flowmeter is made up of nest street flow transducer and operational amplifier and filtering, shaping circuit; Wherein operational amplifier and eliminator all adopt the operational amplifier OP90 of MAXIM company, and shaping circuit adopts comparator MAX921; Connect between two operational amplifier OP90,3 pin of one of them operational amplifier OP90 are connected with nest street flow transducer, and 2,6 pin of another operational amplifier OP90 connect 3 pin of comparator MAX921 respectively.Central processing unit (CPU) adopts single chip computer AT MEGA128; Display modular adopts Chinese character screen 12864; Alarm module adopts buzzer; Power module is made of rechargeable battery and charging circuit, can not only power with the electric energy of self, can also connect vehicle power supply to battery charge with to other module for power supply, and the power technology comparative maturity is not so do set forth in detail.The reset circuit of single chip computer AT MEGA128 adopts button to reset, and clock circuit adopts the external oscillator circuit; The PE7 pin of single chip computer AT MEGA128 is connected with the final signal output terminal of flowmeter (8 pin of comparator MAX921); The PA0 of single chip computer AT MEGA128, PA1, PA2 pin are connected with 4,5,6 pin of Chinese character screen 12864 respectively; 8 pins of the pc port of single chip computer AT MEGA128 link to each other with the 7-14 pin of Chinese character screen 12864 respectively; The PD0 of single chip computer AT MEGA128, PD1 pin are connected with 15,17 pin of Chinese character screen 12864 respectively; The PD7 pin of single chip computer AT MEGA128 is connected with buzzer.
Working procedure: on the hydraulic oil pipe that the flowmeter in this device is installed in oil hydraulic cylinder is connected, display modular is installed in the operator cabin.In case hydraulic system is started working, driver just can be seen hydraulic displacement, can judge timely, thereby reduce the situation that hydraulic rod ruptures.
Claims (5)
1. excavator oil hydraulic cylinder displacement detecting and display unit is characterized in that: comprise being used for detecting in real time the flowmeter that flows into hydraulic fluid flow rate in the oil hydraulic cylinder; Be connected the central processing unit (CPU) that is used to accept flowmeter information and analyzes data with flowmeter; Be connected the display modular that is used to show the oil hydraulic cylinder displacement with central processing unit (CPU); Be connected the alarm module that is used to report to the police with central processing unit (CPU); Give the power module of above-mentioned each module for power supply.
2. excavator oil hydraulic cylinder displacement detecting according to claim 1 and display unit is characterized in that: described flowmeter is installed on the hydraulic oil pipe (2) that is connected with oil hydraulic cylinder (1).
3. excavator oil hydraulic cylinder displacement detecting according to claim 1 and 2 and display unit is characterized in that: described flowmeter adopts nest street flowmeter.
4. excavator oil hydraulic cylinder displacement detecting according to claim 1 and display unit is characterized in that: described central processing unit (CPU) adopts single chip computer AT MEGA128.
5. excavator oil hydraulic cylinder displacement detecting according to claim 1 and display unit is characterized in that: described display modular adopts Chinese characters display screen 12864.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205413332U CN201786813U (en) | 2010-09-21 | 2010-09-21 | Displacement detecting and displaying device for hydraulic cylinder of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205413332U CN201786813U (en) | 2010-09-21 | 2010-09-21 | Displacement detecting and displaying device for hydraulic cylinder of excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786813U true CN201786813U (en) | 2011-04-06 |
Family
ID=43818778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205413332U Expired - Fee Related CN201786813U (en) | 2010-09-21 | 2010-09-21 | Displacement detecting and displaying device for hydraulic cylinder of excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786813U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758822A (en) * | 2013-12-30 | 2014-04-30 | 北京市三一重机有限公司 | Shield tunneling machine and oil cylinder displacement detecting device thereof |
| CN105698717A (en) * | 2016-01-21 | 2016-06-22 | 山东科技大学 | Plunger shrinkage monitor |
| CN110907041A (en) * | 2019-12-06 | 2020-03-24 | 中国空空导弹研究院 | Refrigeration state judgment system of refrigeration type infrared focal plane detector |
-
2010
- 2010-09-21 CN CN2010205413332U patent/CN201786813U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758822A (en) * | 2013-12-30 | 2014-04-30 | 北京市三一重机有限公司 | Shield tunneling machine and oil cylinder displacement detecting device thereof |
| CN105698717A (en) * | 2016-01-21 | 2016-06-22 | 山东科技大学 | Plunger shrinkage monitor |
| CN105698717B (en) * | 2016-01-21 | 2019-01-29 | 山东科技大学 | Movable post contracting amount monitor |
| CN110907041A (en) * | 2019-12-06 | 2020-03-24 | 中国空空导弹研究院 | Refrigeration state judgment system of refrigeration type infrared focal plane detector |
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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: 20110406 Termination date: 20110921 |