CN101915652A - Electromagnetic drive method and device for concrete pump truck arm fatigue tests - Google Patents
Electromagnetic drive method and device for concrete pump truck arm fatigue tests Download PDFInfo
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- CN101915652A CN101915652A CN 201010252424 CN201010252424A CN101915652A CN 101915652 A CN101915652 A CN 101915652A CN 201010252424 CN201010252424 CN 201010252424 CN 201010252424 A CN201010252424 A CN 201010252424A CN 101915652 A CN101915652 A CN 101915652A
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- concrete pump
- pump truck
- truck arm
- fatigue tests
- electromagnet
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Abstract
The invention discloses an electromagnetic drive method and an electromagnetic drive device for concrete pump truck arm fatigue tests. The electromagnetic drive method comprises the following steps of: fixing at least one permanent magnet at the top end of a concrete pump truck arm used for the fatigue tests; arranging a bracket below the top end of the concrete pump truck arm, and arranging an electromagnet electrically connected with a frequency converter on the bracket; and starting the frequency converter, changing magnetic poles of the electromagnet electrically connected with the frequency converter according to set frequency, and periodically changing the direction of a magnetic force between the electromagnet arranged on the bracket and the permanent magnet arranged at the top end of the concrete pump truck arm to promote the concrete pump truck arm fixedly connected with the permanent magnet to swing according to the set frequency so as to realize concrete pump truck arm fatigue tests and researches. The method of the invention has the advantages of simplicity, convenient operation, small equipment volume, low cost, simple mounting process, high flexibility, easy regulation, wide application, suitability for industrial application and capability of providing a novel drive mode for the concrete pump truck arm fatigue tests.
Description
Technical field
The invention discloses a kind of concrete pump truck arm fatigue tests driving method and device, be meant a kind of electromagnetic drive method and device of concrete pump truck arm fatigue tests especially; Belong to engineering machinery manufacturing technology field.
Background technology
Jib is one of topmost critical component of concrete mixer, and its security, reliability and advance are the keys of decision pump truck core competitiveness.Concrete pump truck arm low-frequency vibration when work, pumping vehicle arm rack can crackle occur because of fatigue damage under the alterante stress effect, even fracture, causes heavy losses.
For the fatigue behaviour of clearer understanding concrete pump truck arm, optimize the jib design, be necessary pumping vehicle arm rack is carried out torture test.Present concrete pump truck arm fatigue tests adopts mechanical means more, and promptly motor drives a big disk rotation after slowing down, and swings by a band swing arm frame.Present this mechanical pump truck arm fatigue tests device manufacturing cost is higher, and structure is huge, heavy, and energy consumption is big, makes troubles to test, and has increased the cost of test.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art and provide that a kind of method is simple, easy to operate, equipment volume is little, cost is low, installation process is simple, the electromagnetic drive method and the device of the concrete pump truck arm fatigue tests that dirigibility is good, be easy to adjust.
The present invention is a kind of electromagnetic drive method of concrete pump truck arm fatigue tests, may further comprise the steps:
The first step: fixing at least one block permanent magnet on the concrete pump truck arm top that is used for torture test;
Second step: below described concrete pump truck arm top, a support is set, an electromagnet that is electrically connected with frequency converter is installed on the described support;
The 3rd step: start frequency converter, press the magnetic pole that setpoint frequency changes the electromagnet that is electrically connected with frequency converter, magnetic force direction generating period between the permanent magnet of being located at the electromagnet on the support and being located at the concrete pump truck arm top is sexually revised, and then the concrete pump truck arm that promotion is fixedlyed connected with permanent magnet is realized concrete pump truck arm fatigue tests research by the warble of setting.
Among the present invention, described permanent magnet is fixed on described concrete pump truck arm top lower surface.
Among the present invention, described frequency converter one termination 220V alternating current, the other end links to each other with electromagnet by water-proof cable.
Among the present invention, described support height can be regulated.
Among the present invention, be set with protective cover on the described electromagnet.
A kind of electromagnetic driver of concrete pump truck arm fatigue tests, form by permanent magnet, electromagnet, support, frequency converter, cable, described permanent magnet is fixedly mounted on the concrete pump truck arm top that is used for Fatigue Test Research, described support is arranged on below, described concrete pump truck arm top, one electromagnet that is electrically connected with an end of frequency converter by cable is installed, another termination of described frequency converter 220V alternating current on the described support.
Among the present invention, described permanent magnet is fixed on described concrete pump truck arm top lower surface.
Among the present invention, described cable is a water-proof cable.
Among the present invention, described support is provided with arrangement for adjusting height.
Among the present invention, be set with protective cover on the described electromagnet.
The present invention realizes that the electromagnetic type of concrete pump truck arm fatigue tests drives owing to adopt technique scheme, utilizes the low frequency ac drive magnetic to produce alternating magnetic field and drives the concrete pump truck arm swing, realizes arm fatigue tests research; Utilize the arrangement for adjusting height that is provided with on the support, to adjust relative position and the distance between electromagnet and the permanent magnet, to guarantee alternating magnetic field concrete pump truck arm is realized effectively driving, and then improve the homogeneity of concrete pump truck arm hunting frequency, amplitude, improve the degree of accuracy of arm fatigue tests research conclusion; Particularly suit protective cover and employing water-proof cable outside electromagnet can make the present invention use more than rainy day, the flying dust and under other rugged environments.The present invention has overcome prior art manufacturing cost height, and structure is huge, heavy, the shortcoming that energy consumption is big, and it is little to have equipment volume, and cost is low, and installation process is simple, and dirigibility is good, and noncontact drives, and is easy to adjust, and realizes advantages such as also practicality easily.
In sum, the inventive method is simple, easy to operate, equipment volume is little, and cost is low, and installation process is simple, and dirigibility is good, be easy to adjust, and applicability is wide, is suitable for industrial applications, for concrete pump truck arm fatigue tests provides a kind of new type of drive.
Description of drawings
Accompanying drawing 1 is structural representation of the present invention
Among the figure: 1-frequency converter, 2-cable, 3-support, 4-arrangement for adjusting height, 5-platform, 6-electromagnet, 7-protective cover, 8-permanent magnet, 9-pumping vehicle arm rack.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
A kind of electromagnetic driver of concrete pump truck arm fatigue tests, by permanent magnet 8, electromagnet 6, support 3, frequency converter 1, cable 2, arrangement for adjusting height 4, platform 5, protective cover 7 is formed, described permanent magnet 8 is fixedly mounted on the concrete pump truck arm 9 top lower surfaces that are used for Fatigue Test Research, described support 3 is arranged on below, described concrete pump truck arm 9 tops, be equipped with on the described support 3 and regulate arrangement for adjusting height (4), described arrangement for adjusting height (4) is spirally connected by an end and the described support (3) of a screw rod, the other end of described screw rod is provided with platform 5, be equipped with one on the described platform 5 and pass through the electromagnet 6 that cable 2 is electrically connected with an end of frequency converter 1, described frequency converter 1 another termination 220V alternating current; On described electromagnet 6, be set with protective cover 7.
In the present embodiment, described cable 2 is water-proof cables.
Use when of the present invention, arrange the place earlier, concrete pump truck arm (9) is launched fully and horizontal positioned as far as possible, frequency converter (1) is adjusted to the driving frequency that needs, this driving frequency and jib natural frequency are approaching.At the terminal lower surface of jib permanent magnet (8) is installed, permanent magnet (8) is fixed on the concrete pump truck arm 9, support (3) be placed on permanent magnet (8) that concrete pump truck arm 9 ends are provided with under, and be fixed by bolts on the ground; Arrangement for adjusting height (4) is a screw rod, be installed on the support (3), electromagnet (6) and protective cover (7) are installed on the platform 5 of arrangement for adjusting height (4), adjust the height of platform 5 by arrangement for adjusting height (4), and then adjust the distance that makes between electromagnet (6) and the permanent magnet (8), there are enough driving forces and permanent magnet (8) and protective cover (7) not to bump when making work; Connect frequency converter (1) and electromagnet (6) with cable (2), checks errorless after, start frequency converter (1), can realize the contactless electromagnetic type driving of concrete pump truck arm (9).
Claims (10)
1. the electromagnetic drive method of a concrete pump truck arm fatigue tests may further comprise the steps:
The first step: fixing at least one block permanent magnet on the concrete pump truck arm top that is used for torture test;
Second step: below described concrete pump truck arm top, a support is set, an electromagnet that is electrically connected with frequency converter is installed on the described support; The 3rd step: start frequency converter, press the magnetic pole that setpoint frequency changes the electromagnet that is electrically connected with frequency converter, magnetic force direction generating period between the permanent magnet of being located at the electromagnet on the support and being located at the concrete pump truck arm top is sexually revised, and then the concrete pump truck arm that promotion is fixedlyed connected with permanent magnet is realized concrete pump truck arm fatigue tests research by the warble of setting.
2. the electromagnetic drive method of a kind of concrete pump truck arm fatigue tests according to claim 1, it is characterized in that: described permanent magnet is fixed on described concrete pump truck arm top lower surface.
3. the electromagnetic drive method of a kind of concrete pump truck arm fatigue tests according to claim 2, it is characterized in that: described frequency converter one termination 220V alternating current, the other end links to each other with electromagnet by water-proof cable.
4. the electromagnetic drive method of a kind of concrete pump truck arm fatigue tests according to claim 3, it is characterized in that: described support height can be regulated.
5. the electromagnetic drive method of a kind of concrete pump truck arm fatigue tests according to claim 4 is characterized in that: be set with protective cover on the described electromagnet.
6. the electromagnetic driver of a concrete pump truck arm fatigue tests, form by permanent magnet, electromagnet, support, frequency converter, cable, it is characterized in that: described permanent magnet is fixedly mounted on the concrete pump truck arm top that is used for Fatigue Test Research, described support is arranged on below, described concrete pump truck arm top, one electromagnet that is electrically connected with an end of frequency converter by cable is installed, another termination of described frequency converter 220V alternating current on the described support.
7. the electromagnetic driver of a kind of concrete pump truck arm fatigue tests according to claim 6, it is characterized in that: described permanent magnet is fixed on described concrete pump truck arm top lower surface.
8. the electromagnetic driver of a kind of concrete pump truck arm fatigue tests according to claim 7, it is characterized in that: described cable is a water-proof cable.
9. the electromagnetic driver of a kind of concrete pump truck arm fatigue tests according to claim 8, it is characterized in that: described support is provided with arrangement for adjusting height.
10. the electromagnetic driver of a kind of concrete pump truck arm fatigue tests according to claim 9 is characterized in that: be set with protective cover on the described electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010252424 CN101915652A (en) | 2010-08-13 | 2010-08-13 | Electromagnetic drive method and device for concrete pump truck arm fatigue tests |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010252424 CN101915652A (en) | 2010-08-13 | 2010-08-13 | Electromagnetic drive method and device for concrete pump truck arm fatigue tests |
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| Publication Number | Publication Date |
|---|---|
| CN101915652A true CN101915652A (en) | 2010-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201010252424 Pending CN101915652A (en) | 2010-08-13 | 2010-08-13 | Electromagnetic drive method and device for concrete pump truck arm fatigue tests |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661840A (en) * | 2012-05-22 | 2012-09-12 | 三一重工股份有限公司 | Fatigue test device for arm support |
| CN108332952A (en) * | 2017-01-20 | 2018-07-27 | 中联重科股份有限公司 | Arm support fatigue test device |
| CN110926981A (en) * | 2019-12-10 | 2020-03-27 | 湖南工业大学 | Vertical dynamic mechanical analyzer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1017375B (en) * | 1985-05-12 | 1992-07-08 | 南京航空学院 | Fatigue tester for electromagnetic eddy excitation and its design |
| US6105425A (en) * | 1998-04-06 | 2000-08-22 | Nohken Inc. | Vibration type level detector |
| JP2004279099A (en) * | 2003-03-13 | 2004-10-07 | Seiko Instruments Inc | External magnetic field sweep magnetic force microscope and measuring method |
| CN201212871Y (en) * | 2008-04-30 | 2009-03-25 | 中国科学院金属研究所 | Test system for dynamic bending fatigue performance of thin-film material |
| CN101581647A (en) * | 2009-04-16 | 2009-11-18 | 济南益华摩擦学测试技术有限公司 | High-frequency reciprocating fatigue, friction and wear tester |
| CN101718614A (en) * | 2009-11-09 | 2010-06-02 | 北京航空航天大学 | Electromagnetic parameter excitation cantilever beam experimental device |
-
2010
- 2010-08-13 CN CN 201010252424 patent/CN101915652A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1017375B (en) * | 1985-05-12 | 1992-07-08 | 南京航空学院 | Fatigue tester for electromagnetic eddy excitation and its design |
| US6105425A (en) * | 1998-04-06 | 2000-08-22 | Nohken Inc. | Vibration type level detector |
| JP2004279099A (en) * | 2003-03-13 | 2004-10-07 | Seiko Instruments Inc | External magnetic field sweep magnetic force microscope and measuring method |
| CN201212871Y (en) * | 2008-04-30 | 2009-03-25 | 中国科学院金属研究所 | Test system for dynamic bending fatigue performance of thin-film material |
| CN101581647A (en) * | 2009-04-16 | 2009-11-18 | 济南益华摩擦学测试技术有限公司 | High-frequency reciprocating fatigue, friction and wear tester |
| CN101718614A (en) * | 2009-11-09 | 2010-06-02 | 北京航空航天大学 | Electromagnetic parameter excitation cantilever beam experimental device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661840A (en) * | 2012-05-22 | 2012-09-12 | 三一重工股份有限公司 | Fatigue test device for arm support |
| CN108332952A (en) * | 2017-01-20 | 2018-07-27 | 中联重科股份有限公司 | Arm support fatigue test device |
| CN108332952B (en) * | 2017-01-20 | 2019-08-09 | 中联重科股份有限公司 | Arm support fatigue test device |
| CN110926981A (en) * | 2019-12-10 | 2020-03-27 | 湖南工业大学 | Vertical dynamic mechanical analyzer |
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Open date: 20101215 |