CN2306055Y - Screw differential pressing device for pressure filter - Google Patents
Screw differential pressing device for pressure filter Download PDFInfo
- Publication number
- CN2306055Y CN2306055Y CN 97234048 CN97234048U CN2306055Y CN 2306055 Y CN2306055 Y CN 2306055Y CN 97234048 CN97234048 CN 97234048 CN 97234048 U CN97234048 U CN 97234048U CN 2306055 Y CN2306055 Y CN 2306055Y
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- CN
- China
- Prior art keywords
- screw
- worm
- fixed
- nut
- speed reducer
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- Expired - Fee Related
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Abstract
The utility model provides a screw differential pressing device for a press filter. The structure is composed of a pressing screw rod, a worm speed reducer of a worm wheel, and a buffering differential speed reducer. The pressing screw rod is provided with a screw-thread screw rod whose two segments has different screw pitches; the worm speed reducer of the worm wheel is connected with the screw-thread screw rod with wide screw pitch; the buffering differential speed reducer is connected with the screw-thread screw rod with narrow screw pitch. The screw differential pressing device for the press filter has the characteristics of reasonable design, simple structure, easy processing, small size, convenient installation and use, high automation level, high work efficiency, energy saving, long service life, etc.
Description
The utility model relates to a kind of filter plant, specifically a kind of filter press screw differential hold down gag.
Filter press is the important filter plant of industries such as chemical industry, mine, metallurgy, food, pharmacy, the filtration that is mainly used in the solid-liquid mixed material in the production process with separate.The filter press of the big or small all kinds of models of generally using on the present domestic and international market, mostly its device to the filter plate pressurization is to adopt hydraulic test, by hydraulic drive the protruding filter plate that will be filled with solid material of piston in the hydraulic cylinder is compressed, make and lack carrying liqs in the solid material after the press filtration as much as possible or compare carrying liqs, but the deficiency that widely used filter press hydraulic transmission in use exists in the prior art is the equipment cost height, oil circuit reversing switch device in the hydraulic transmission is many, damage easily, service life is short, because the work of hydraulic means is no matter there is load or non-loaded, its speed of service is constant, so inefficiency, and the leakage of hydraulic oil medium often takes place, contaminated environment not only, and increased production cost.
The purpose of this utility model provides a kind of high efficiency, long service life, environmentally safe simple in structure, make and produce the filter press screw differential hold down gag that instinct reduces significantly.
The purpose of this utility model filter press screw differential hold down gag is realized in the following manner, adopt a cover worm-gear speed reducer that power is provided, by worm-gear speed reducer as the one-level speed change, worm gear drives compresses leading screw and rotates the realization two stage speed change, compressing design two cover different thread leading screws on the leading screw, the widely-pitched threaded screw rod makes and compresses leading screw promote filter plate push pedal F.F. when zero load, the bulb nut clutch that matches with it as pressure buffer Clutch Control narrow pitch threaded screw rod with spring, when the filter plate push pedal contacts generation extruding carrying with filter plate after, the buffer spring compressive deformation, narrow pitch nut and the engagement of bulb nut realize three-step gear shift, promptly produce the big pressure of low speed and promote filter plate push pedal extruding filter plate, to replace the hydraulic drive hold-down mechanism of prior art.Adopt a cover reductor to produce three kinds of fltting speeds, thereby improved the operating efficiency of filter press greatly, shortened the running time of filter press when zero load, the consumption of having saved electric power.Compressing the loading limit of leading screw and unloading moves back car and carries out switch control by the pressure sensor and the sequence circuit that are installed between bulb nut and the bulb nut frame.
Accompanying drawing 1 is the structural representation of filter press screw differential hold down gag;
Accompanying drawing 2 is that the A-A of filter press screw differential hold down gag is to the cross section structure schematic diagram.
Screw differential pressing device for pressure filter of the present utility model is done following detailed with reference to Figure of description Carefully illustrate.
Screw differential pressing device for pressure filter of the present utility model, its structure are by compressing leading screw, snail Worm and gear reductor and buffering differential speed reducer form, and compress leading screw 12 and are provided with two sections different spiral shells The threaded screw rod 13,5 of distance, worm-gear speed reducer and widely-pitched threaded screw rod 13 join, Buffering differential speed reducer and narrow pitch threaded screw rod 5 join.
Worm-gear speed reducer is made up of casing 16, worm gear 8, worm screw 15, motor 23, nut 10, nut positioning key 11, worm gear 8 is fixed among the casing 16 by bearing 9, nut 10 is fixed among the casing 16 by nut positioning key 11, compress on the widely-pitched threaded screw rod 13 of leading screw 12 and axially have gathering sill 21, guide-localization key 7 is fixed between worm gear 8 and the gathering sill 21, worm screw 15 is joined with worm gear 8, motor 23 and the worm screw 15 transmission power that joins.
The buffering differential speed reducer is by filter plate push pedal 1, buffer spring 2, spring bearer plate 3, anti-attrition push pedal 6, bulb nut 18, pressure sensor 19, bulb nut frame 20 is formed, bulb nut 18 is fixed among the bulb nut frame 20, pressure sensor 19 is fixed between bulb nut 18 and the bulb nut frame 20, bulb nut frame 20 is fixed on the centre of filter plate push pedal 1, in the filter plate push pedal 1 of bulb nut frame 20 peripheries, be fixed with spring conductor rod 4, buffer spring 2 is fixed on the spring conductor rod 4 by spring bearer plate 3, spring bearer plate 3 is fixed on the end of spring conductor rod 4 by nut, anti-attrition push pedal 6 is fixed together with spring bearer plate 3, compresses that narrow pitch threaded screw rod 5 on the leading screw 12 passes anti-attrition push pedal 6 and spring bearer plate 3 joins with bulb nut 18.
Embodiment:
The filter press screw differential hold down gag of rate utility model, its processing, installation are implemented shown in the by specification accompanying drawing, and processing technology is the common machine processing technology.The installation site of whole filter press screw differential hold down gag on filter press is identical with the installation site of the hydraulic compressing device of existing all kinds of hydraulic pressure filter presses, and just the filter plate push pedal is advanced by hydraulic piston and withdraws from and uses the leading screw propelling instead and withdraw from.
Concrete use operating process is as follows:
Start the filter press sequence circuit, the reductor machine operation, when the zero load no-load running of hold down gag, compress the leading screw end and promote spring bearer plate, promote the filter plate push pedal by spring and advance fast, produce when loading in case the filter plate push pedal touches filter plate, the spring compressive deformation, narrow pitch threaded screw rod and the engagement of bulb nut advance filter plate push pedal low speed, and when the filter plate push pedal advanced to terminal point, it is clean with the liquid press filtration in the solid material between the filter plate that leading screw produces enough thrusts.Load reaches specified limits, and pressure sensor and sequence circuit control reductor motor quit work, and counter-rotating makes spring reset, leading screw drag the filter plate push pedal to withdraw from, make filter press finish a pressure-filtering process then.
Screw differential pressing device for pressure filter of the present utility model is compared with existing technology, and has design Rationally, simple in structure, be easy to processing, volume is little, easy to operate, automaticity is high, work The characteristics such as efficient height, the saving energy, long service life, thereby, the valency of well promoting the use of had Value.
Except the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (3)
1. filter press screw differential hold down gag, comprise and compress leading screw, worm-gear speed reducer and buffering differential speed reducer, it is characterized in that compressing leading screw 12 and be provided with two sections different thread leading screws 13,5, worm-gear speed reducer and widely-pitched threaded screw rod 13 join, and buffering differential speed reducer and narrow pitch threaded screw rod 5 join.
2. filter press screw differential hold down gag according to claim 1, it is characterized in that worm-gear speed reducer is made up of casing 16, worm gear 8, worm screw 15, motor 25, nut 10, nut positioning key 11, worm gear 8 is fixed among the casing 16 by bearing 9, nut 10 is fixed among the casing 16 by nut positioning key 11, compress on the widely-pitched threaded screw rod 13 of leading screw 12 and axially have gathering sill 21, guide-localization key 7 is fixed between worm gear 8 and the gathering sill 21, worm screw 15 is joined with worm gear 8, motor 23 and the worm screw 15 transmission power that joins.
3. filter press screw differential hold down gag according to claim 1, it is characterized in that cushioning differential speed reducer is by filter plate push pedal 1, buffer spring 2, spring bearer plate 3, anti-attrition push pedal 6, bulb nut 18, pressure sensor 19, bulb nut frame 20 is formed, bulb nut 18 is fixed among the bulb nut frame 20, pressure sensor 19 is fixed between bulb nut 18 and the bulb nut frame 20, bulb nut frame 20 is fixed on the centre of filter plate push pedal 1, in the filter plate push pedal 1 of bulb nut frame 20 peripheries, be fixed with spring conductor rod 4, buffer spring 2 is fixed on the spring conductor rod 4 by spring bearer plate 3, spring bearer plate 3 is fixed on the end of spring conductor rod 4 by nut, anti-attrition push pedal 6 is fixed together with spring bearer plate 3, compresses that narrow pitch threaded screw rod 5 on the leading screw 12 passes anti-attrition push pedal 6 and spring bearer plate 3 joins with bulb nut 18.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97234048 CN2306055Y (en) | 1997-08-22 | 1997-08-22 | Screw differential pressing device for pressure filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97234048 CN2306055Y (en) | 1997-08-22 | 1997-08-22 | Screw differential pressing device for pressure filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2306055Y true CN2306055Y (en) | 1999-02-03 |
Family
ID=33945499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97234048 Expired - Fee Related CN2306055Y (en) | 1997-08-22 | 1997-08-22 | Screw differential pressing device for pressure filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2306055Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690590A (en) * | 2015-01-29 | 2015-06-10 | 山东鲁南机床有限公司 | Differential reversible variable speed transmission mechanism |
| CN104690590B (en) * | 2015-01-29 | 2018-06-01 | 山东鲁南机床有限公司 | differential reversible variable transmission mechanism |
| 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 |
-
1997
- 1997-08-22 CN CN 97234048 patent/CN2306055Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690590A (en) * | 2015-01-29 | 2015-06-10 | 山东鲁南机床有限公司 | Differential reversible variable speed transmission mechanism |
| CN104690590B (en) * | 2015-01-29 | 2018-06-01 | 山东鲁南机床有限公司 | differential reversible variable transmission mechanism |
| 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 |
| CN111420438B (en) * | 2020-04-08 | 2022-02-08 | 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 |