CN2139848Y - Test device for pull plate reversing of filter press - Google Patents
Test device for pull plate reversing of filter press Download PDFInfo
- Publication number
- CN2139848Y CN2139848Y CN 92219735 CN92219735U CN2139848Y CN 2139848 Y CN2139848 Y CN 2139848Y CN 92219735 CN92219735 CN 92219735 CN 92219735 U CN92219735 U CN 92219735U CN 2139848 Y CN2139848 Y CN 2139848Y
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- China
- Prior art keywords
- tie
- plate
- pull plate
- commutation
- utility
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- Expired - Fee Related
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Abstract
The utility model relates to washing separation equipment, which is a test device for a pull plate reversing of a plate-frame filter press in coal washing and chemical industries. The utility model provides with a speed detecting component and the pull plate can reverse through the moving speed of the detecting pull plate device; the speed detecting component adopts a photoelectric shaft encoder which is connected with the oil motor at the same shaft. Having the advantages of reliable operation, long service life and convenient installation, the utility model can simplify the hydraulic system and overcome the defects of the reverse of the original pressure relay such as difficult adjustment, frequent adjustment, poor reliability and high failure rate to improve the operation quality of the controlling system.
Description
The utility model relates to washing appliance, further is the arm-tie commutation checkout gear that is used for the plate and frame type filter-press of coal washing and chemical industry.
The arm-tie commutation signal of the plate and frame type filter-press of prior art utilizes pressure switch to send.Its operation principle is: oil motor drives plate pulling device and returns, wait to draw the position of filter plate when arrival, filter plate stops that plate pulling device continues to move, lock filter plate by mechanical mechanism simultaneously, oil motor stall this moment, oil pressure raises and also presses spring, and spring acts on and returns side commutation pressure switch, make the pressure switch closure send the arm-tie commutation signal, control system makes the oil motor counter-rotation according to the arm-tie commutation signal, promptly finishes and returns the side commutation.Plate pulling device drives filter plate and moves to a plate direction, the plate side filter plate stops when plate pulling device is subjected to the end, the oil motor stall, the oil circuit oil pressure raises and presses spring, and spring action is in arm-tie lateral pressure relay, make arm-tie lateral pressure relay closes send commutation signal, control system makes oil motor drive plate pulling device and returns, and promptly finishes the commutation of arm-tie side.So repeatedly, till filter plate all pulls.
This pressure arm-tie reverse flow technique, can pressure switch correctly send commutation signal, lean on the cooperation adjustment of oil circuit pressure and high-low pressure spring and pressure switch.After mixing up the operating point, because the frequent movement of spring can make the operating point often change, pressure switch also often damages, and causes the arm-tie commutation signal can not correctly send often, and causes arm-tie promptly frequent commutation not in place, or arm-tie can not commutate after putting in place.Through investigation, the fault of plate and frame type filter-press control system has nearly 70% to go out in the arm-tie commutation, therefore, the arm-tie reverse flow technique is changed, and is imperative.
Purpose of design of the present utility model is to overcome weak point of the prior art, and provides a kind of passing through that the plate pulling device translational speed is detected, and realizes the checkout gear of arm-tie commutation.
Purpose of design of the present utility model can reach by following measure:
In plate and frame type filter-press arm-tie commutation checkout gear, be provided with the speed detection part.By the translational speed of speed detection part detection plate pulling device, when speed equals zero, send the arm-tie commutation signal, make the plate pulling device commutation.
Purpose of design of the present utility model can also reach by following measure:
The speed detection part of arm-tie commutation checkout gear adopts shaft encoder, and this shaft encoder is by oil motor 6 coaxial are connected of connector with filter press.
The shaft encoder of arm-tie commutation checkout gear adopts photo electric axis encoder 2.
The utility model compared with prior art has following advantage:
1. this reverse flow technique adopts the speed principle, has fundamentally solved inherent defects such as reversal point need frequently meticulously be adjusted in the former pressure reverse flow technique, pressure switch is fragile.
2. the plate and frame type filter-press hydraulic system can deduct arm-tie commutation part, thereby simplifies the hydraulic system part.
3. non-impacting type commutation detects, and makes the action frequency of commutation checkout gear not have age limit.
4. the arm-tie reversing arrangement need not to adjust at whole filter press life period after Installation and Debugging finish first again.
5. can accurately, inerrably send the commutation signal of plate pulling device.
The drawing of accompanying drawing is described as follows:
Fig. 1: the utility model structural representation
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 shows the formation of the utility model embodiment: the flexible coupler 4 between the oil motor 6 of mounting bracket 3, photo electric axis encoder 2 and filter press of signal cable 1, photo electric axis encoder 2, photo electric axis encoder of photo electric axis encoder is arranged, in addition, also has the signal processing circuit that the electric impulse signal of photo electric axis encoder 2 is converted into the driving signal of arm-tie and arm-tie return solenoid valve.Also have oil motor to drive the sprocket wheel 5 of plate pulling device among the figure.
Photo electric axis encoder 2 can be made by oneself; Also can adopt finished product, as: the E6A2 type photo electric axis encoder of the upright stone company of Japan.This product carries flexible coupler 4, when being connected with the axle of oil motor 6, need add a metal coupling unit again, and connector one side is an axle, and its opposite side is a disk with holes.
This photo electric axis encoder 2 is easy for installation, only a side of 6 of itself and oil motors need be connected by coupling 4 to get final product.Save throw over relay loop, the left and right sides, simplified hydraulic system.
Signal processing circuit: in common filter press, can be that an arm-tie commutation of making detects control circuit board--formed by unit interval counting tachometer circuit and power amplification control circuit; In microcomputor program control filter press, the function of this circuit board is then finished by microcomputer.
Except adopting the photo electric axis encoder, the speed detection part can also adopt the speed measuring device of other patterns, as: magnetosensitive speed measuring device, tachometer generator etc.
Claims (3)
1, a kind of plate and frame type filter-press arm-tie commutation checkout gear is characterized in that having the speed detection part.
2, plate and frame type filter-press arm-tie commutation checkout gear according to claim 1 is characterized in that said speed detection part is a shaft encoder, and this shaft encoder is by oil motor (6) coaxial be connected of connector with filter press.
3, plate and frame type filter-press arm-tie commutation checkout gear according to claim 2 is characterized in that said shaft encoder is photo electric axis encoder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92219735 CN2139848Y (en) | 1992-09-14 | 1992-09-14 | Test device for pull plate reversing of filter press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92219735 CN2139848Y (en) | 1992-09-14 | 1992-09-14 | Test device for pull plate reversing of filter press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2139848Y true CN2139848Y (en) | 1993-08-11 |
Family
ID=33766921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92219735 Expired - Fee Related CN2139848Y (en) | 1992-09-14 | 1992-09-14 | Test device for pull plate reversing of filter press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2139848Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764900A (en) * | 2015-04-11 | 2015-07-08 | 山东捷宏环保科技有限公司 | Filter press filtrate monitoring device |
| CN111420438A (en) * | 2020-04-08 | 2020-07-17 | 杭州天惠实业有限公司 | Pressure filter suitable for laboratory is used in way |
-
1992
- 1992-09-14 CN CN 92219735 patent/CN2139848Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764900A (en) * | 2015-04-11 | 2015-07-08 | 山东捷宏环保科技有限公司 | Filter press filtrate monitoring device |
| CN111420438A (en) * | 2020-04-08 | 2020-07-17 | 杭州天惠实业有限公司 | Pressure filter suitable for laboratory is used in way |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |