CN102967720A - Hydraulic pump rotational speed measurement device - Google Patents
Hydraulic pump rotational speed measurement device Download PDFInfo
- Publication number
- CN102967720A CN102967720A CN2012104456635A CN201210445663A CN102967720A CN 102967720 A CN102967720 A CN 102967720A CN 2012104456635 A CN2012104456635 A CN 2012104456635A CN 201210445663 A CN201210445663 A CN 201210445663A CN 102967720 A CN102967720 A CN 102967720A
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- hydraulic pump
- magnetic gear
- hall effect
- effect element
- rotational speed
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Abstract
The invention discloses a hydraulic pump rotational speed measurement device which is formed by a magnetic gear and a Hall effect element located beside the magnetic gear and radially aligning at the magnetic gear along the magnetic gear, and a cable is connected onto the Hall effect element. The hydraulic pump rotational speed measurement device has the advantages of being simple in structure, convenient to install and capable of being directly installed on a hydraulic pump to monitor hydraulic pump rotational speed.
Description
Technical field
The invention belongs to the speed probe technical field, especially relate to a kind of speed probe for hydraulic pump.
Background technology
Hydraulic pump (or motor) is mainly used in the hydraulic-driven of walking machine, traditional hydraulic pump/motor mainly comprises housing, be fixed on end cap, the bonnet of housing front end, rear end, the motor spindle of holder housing inside, plunger part, mandrel, cylinder body, valve plate; Wherein motor spindle one end stretches out end cap, the other end is provided with the ball-and-socket dish, plunger part is made of connecting rod and plunger, connecting rod is made of large bulb, little bulb and the connecting link one that is connected large and small bulb, the large bulb of connecting rod is located in the ball-and-socket dish, and plunger has consent, has ball-and-socket in the bottom of consent, the little bulb of connecting rod stretches in the consent of plunger and cooperates with ball and socket, and the little bulb of connecting rod only is made of a Surface of Sphere.Adopt the hydraulic pump/motor of said structure, have plunger part processing simply, reliable transmission, advantages such as can enhancing productivity and reduce the cost.
But, up to the present, also do not occur a kind ofly can being directly installed on the hydraulic pump rotation-speed measuring device of the hydraulic pump rotating speed being monitored in the hydraulic pump.
Summary of the invention
Technical matters to be solved by this invention provides a kind of simple in structure, and is easy for installation, can be directly installed on the hydraulic pump rotation-speed measuring device of on the hydraulic pump hydraulic pump rotating speed being monitored, the deficiency that exists to overcome prior art.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of hydraulic pump rotation-speed measuring device is characterized in that: by magnetic gear, to be positioned at magnetic gear other and consist of along the Hall effect element that gear is radially aimed at magnetic gear, is connected with cable on the described Hall effect element.
In further improvement of the present invention, also include the shell that covers on the described Hall effect element, described shell has opening, and described opening is towards described magnetic gear, and described cable passes from outer casing back.
In preferred implementation of the present invention, described magnetic gear is annular gear wheel.
The both sides of described shell also have fixedly ear, fixedly on the ear set bolt are installed.
Adopt technique scheme, the present invention can be installed in easily in the oil motor rotating speed to oil motor and monitor, and concrete mounting means is: only need magnetic gear is installed on certain solid of revolution (such as main shaft, ball-and-socket dish, cylinder body) of oil motor inside.
Therefore, the present invention have simple in structure, easy for installation, can be directly installed on the advantage of on the hydraulic pump hydraulic pump rotating speed being monitored.
Description of drawings
The present invention is elaborated below in conjunction with the drawings and specific embodiments:
Fig. 1 is structural representation of the present invention.
Fig. 2 is the present invention's scheme of installation in hydraulic pump.
Embodiment
As shown in Figure 1, hydraulic pump rotation-speed measuring device of the present invention comprises magnetic gear 100, Hall effect element 200, shell 300 and cable 400.
Wherein, Hall effect element 200 is positioned at magnetic gear 100 sides and radially aims at magnetic gear 100 along gear.Shell 300 1 ends have opening, cover on the Hall effect element 200, and opening is towards magnetic gear 100, and 400 on cable passes from outer casing back (other end).The both sides of shell 300 have fixedly ear 301, fixedly ear 301 is provided with set bolt 302.
On the solid of revolution that is easily installed in hydraulic pump inside, in conjunction with shown in Figure 2, magnetic gear 100 is preferably annular gear wheel.
As shown in Figure 2, a kind of mounting means of the present invention in hydraulic pump is as follows:
The magnetic gear 100 of the ring-type of hydraulic pump rotation-speed measuring device is sleeved on the periphery of hydraulic pump 10 ball-and-socket dishes 11, the openend of shell 300 penetrates the housing 12 of hydraulic pump, and fix with housing 12 by the set bolt 302 on the fixing ear 301, like this, the Hall effect element of shell 300 is then radially aimed at magnetic gear 100 and is surveyed rotating speed, and by PNP or NPN output circuit output impulsive measurement signal, 400 outside transmission pulse measuring-signals of cable.
When testing the speed, the gear teeth and teeth groove by magnetic gear 100 in 200 pairs of rotations of Hall effect element carry out magnetic induction measurement, measure the magnetic flux change that is caused by magnetic gear 100, thereby obtain the impulsive measurement signal, and then be converted to the rotating speed of hydraulic pump.
Therefore, can find out from foregoing detailed description that the present invention has is simple in structure, easy for installation, can be directly installed on the advantage of on the hydraulic pump hydraulic pump rotating speed being monitored.
But, those of ordinary skill in the art will be appreciated that, above embodiment illustrates the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of the above embodiment.
Claims (4)
1. hydraulic pump rotation-speed measuring device is characterized in that: by magnetic gear, to be positioned at magnetic gear other and consist of along the Hall effect element that gear is radially aimed at magnetic gear, is connected with cable on the described Hall effect element.
2. hydraulic pump rotation-speed measuring device according to claim 1, it is characterized in that: also include the shell that covers on the described Hall effect element, described shell has opening, and described opening is towards described magnetic gear, and described cable passes from outer casing back.
3. hydraulic pump rotation-speed measuring device according to claim 1 and 2, it is characterized in that: described magnetic gear is annular gear wheel.
4. hydraulic pump rotation-speed measuring device according to claim 3, it is characterized in that: the both sides of described shell also have fixedly ear, fixedly on the ear set bolt are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104456635A CN102967720A (en) | 2012-11-08 | 2012-11-08 | Hydraulic pump rotational speed measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104456635A CN102967720A (en) | 2012-11-08 | 2012-11-08 | Hydraulic pump rotational speed measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102967720A true CN102967720A (en) | 2013-03-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104456635A Pending CN102967720A (en) | 2012-11-08 | 2012-11-08 | Hydraulic pump rotational speed measurement device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102967720A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568291A (en) * | 2016-11-10 | 2017-04-19 | 青岛海尔股份有限公司 | Lifting synchronization system of refrigerator rack |
| CN106595211A (en) * | 2016-11-10 | 2017-04-26 | 青岛海尔股份有限公司 | Refrigerator rack lifting synchronization system and control method thereof |
| CN107725347A (en) * | 2017-11-01 | 2018-02-23 | 福建侨龙应急装备有限公司 | A kind of hydraulic pump speed detector, method and drainage car |
| CN107860939A (en) * | 2017-09-19 | 2018-03-30 | 武汉船用机械有限责任公司 | A kind of rotation-speed measuring device and measuring method of hydraulic pressure immersed pump |
| CN108761136A (en) * | 2018-08-31 | 2018-11-06 | 仪凤机电（嘉兴）检测技术服务有限公司 | A kind of coolant pump rotational speed monitor system testing calibration device and its testing calibration method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101181A (en) * | 1985-02-25 | 1986-11-12 | 三电有限公司 | The rotational speed detecting device that is used for swash-plate-type compressor |
| US20060257268A1 (en) * | 2005-05-10 | 2006-11-16 | Sauer-Danfoss Inc. | Hydraulic pump or hydraulic motor having a rotation speed sensor |
| CN102095886A (en) * | 2010-12-30 | 2011-06-15 | 天津海洋数码科技有限公司 | Method for detecting rotating speed of suction dredge rimer |
| CN201874743U (en) * | 2010-11-24 | 2011-06-22 | 宁波创源液压有限责任公司 | Hydraulic motor with speed measuring device |
| CN201917581U (en) * | 2011-01-11 | 2011-08-03 | 江门市蒙德电气有限公司 | Speed detection device for main shaft motor |
| CN202991432U (en) * | 2012-11-08 | 2013-06-12 | 上海电气液压气动有限公司 | Hydraulic pump rotate speed measuring device |
-
2012
- 2012-11-08 CN CN2012104456635A patent/CN102967720A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101181A (en) * | 1985-02-25 | 1986-11-12 | 三电有限公司 | The rotational speed detecting device that is used for swash-plate-type compressor |
| US20060257268A1 (en) * | 2005-05-10 | 2006-11-16 | Sauer-Danfoss Inc. | Hydraulic pump or hydraulic motor having a rotation speed sensor |
| CN201874743U (en) * | 2010-11-24 | 2011-06-22 | 宁波创源液压有限责任公司 | Hydraulic motor with speed measuring device |
| CN102095886A (en) * | 2010-12-30 | 2011-06-15 | 天津海洋数码科技有限公司 | Method for detecting rotating speed of suction dredge rimer |
| CN201917581U (en) * | 2011-01-11 | 2011-08-03 | 江门市蒙德电气有限公司 | Speed detection device for main shaft motor |
| CN202991432U (en) * | 2012-11-08 | 2013-06-12 | 上海电气液压气动有限公司 | Hydraulic pump rotate speed measuring device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568291A (en) * | 2016-11-10 | 2017-04-19 | 青岛海尔股份有限公司 | Lifting synchronization system of refrigerator rack |
| CN106595211A (en) * | 2016-11-10 | 2017-04-26 | 青岛海尔股份有限公司 | Refrigerator rack lifting synchronization system and control method thereof |
| CN107860939A (en) * | 2017-09-19 | 2018-03-30 | 武汉船用机械有限责任公司 | A kind of rotation-speed measuring device and measuring method of hydraulic pressure immersed pump |
| CN107860939B (en) * | 2017-09-19 | 2020-09-15 | 武汉船用机械有限责任公司 | Rotating speed measuring device and method of hydraulic immersed pump |
| CN107725347A (en) * | 2017-11-01 | 2018-02-23 | 福建侨龙应急装备有限公司 | A kind of hydraulic pump speed detector, method and drainage car |
| CN108761136A (en) * | 2018-08-31 | 2018-11-06 | 仪凤机电（嘉兴）检测技术服务有限公司 | A kind of coolant pump rotational speed monitor system testing calibration device and its testing calibration method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130313 |