CN108635921A - The superelevation compression elasticity squeezer that a kind of squeeze force is balanced, filter plate frame sealing force is constant - Google Patents

The superelevation compression elasticity squeezer that a kind of squeeze force is balanced, filter plate frame sealing force is constant Download PDF

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Publication number
CN108635921A
CN108635921A CN201810790181.0A CN201810790181A CN108635921A CN 108635921 A CN108635921 A CN 108635921A CN 201810790181 A CN201810790181 A CN 201810790181A CN 108635921 A CN108635921 A CN 108635921A
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CN
China
Prior art keywords
cylinder
plunger
sheet frame
frame
filter plate
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CN201810790181.0A
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CN108635921B (en
Inventor
陆怡昀
纪智荣
宋侨
刘道广
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SHANGHAI TECHASE ENVIRONMENT PROTECTION CO Ltd
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SHANGHAI TECHASE ENVIRONMENT PROTECTION CO Ltd
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Priority to CN201810790181.0A priority Critical patent/CN108635921B/en
Publication of CN108635921A publication Critical patent/CN108635921A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D25/00Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12Filter presses, i.e. of the plate or plate and frame type
    • B01D25/21Plate and frame presses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D25/00Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12Filter presses, i.e. of the plate or plate and frame type
    • B01D25/21Plate and frame presses
    • B01D25/215Construction of the filter plates, frames

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Presses And Accessory Devices Thereof (AREA)

Abstract

The invention discloses the superelevation compression elasticity squeezers that a kind of equilibrium of squeeze force, filter plate frame sealing force are constant.It includes filter plate frame of the several groups between thrust plate, thrust plate;The pressing oil of four same specifications is distributed in cylinder installation seat, and the piston rod of four pressing oils is perpendicular to thrust plate compression face;The tie point of four piston rods and thrust plate, is distributed on the compression face of thrust plate.Every group of filter plate frame includes load sheet frame, movable sheet frame and several plunger cases that axis is covered with two-stage self- steering;Every plunger case includes cylinder body, cylinder bottom and plunger rod;Plunger rod doubles as level-one guiding axis and two level guide sleeve seat;The nose bar of cylinder bottom is as two level guiding axis;Cylinder body doubles as level-one guide sleeve seat.The pressing oil of four same specifications of the present invention replaces a large tank, it is ensured that the squeeze force that four pressing oils transmit is balanced;Filter plate frame uses the constant force plunger case that axis is covered with two-stage self- steering, can guarantee the depth of parallelism of load sheet frame and movable sheet frame in expressing process.

Description

The superelevation compression elasticity squeezer that a kind of squeeze force is balanced, filter plate frame sealing force is constant
Technical field
The invention belongs to technical field of sludge deep dehydration, are related to a kind of deep dehydration device for sludge, more particularly to a kind of The superelevation compression elasticity squeezer that squeeze force is balanced, filter plate frame sealing force is constant.
Background technology
Superelevation compression elasticity squeezer is a kind of efficient plate compression equipment, it is arranged successively by several groups filter plate frame Row make the water in sludge be discharged by filter cloth, reach dehydration purpose by the extruding of filter plate frame.Traditional superelevation compression elasticity pressure Crusher is typically to provide squeeze force using a large tank (plunger case), and filter plate frame is in fixing sheet frame (load sheet frame) and to live Several springs and several guide sleeves, axis is arranged in surrounding between movable plate frame, reduces chamber space by compressed spring completely, to realize Extruding to filter plate frame, reaches dehydration purpose.
Existing superelevation compression elasticity squeezer has the following defects:
(1) thrust plate of squeezer, filter plate frame and thrust plate are typically square.Squeezing is provided using a large tank The connection of power, large tank piston and thrust plate can be only positioned at the middle of square.The power that large tank transmits, in square Between, square sideline and square diagonal line be extremely it is unbalanced.
(2) filter plate frame sealing force is the spring force by being generated after squeeze force compressed spring, and spring force is compressed with spring The increase of displacement and increase.After spring force has been more than the minimum sealing force needed for filter plate frame, extra spring force has instead Harmful, it will offset a part of effective squeeze force.Also, spring frangibility causes production to pause, and it is time-consuming and laborious to replace spring.
(3) in expressing process, the fixing sheet frame (load sheet frame) of filter plate frame and movable sheet frame must keeping parallelism movements. Fixing sheet frame (load sheet frame) and movable sheet frame to ensure filter plate frame move in parallel, typically the fixing sheet frame in filter plate frame Several guide sleeves, axis are set between (load sheet frame) and movable sheet frame.And these guide sleeves, axis corrosion-vulnerable are worn, and guiding is worked as After set, axis abrasion are a certain amount of, it is oriented to failure, in expressing process, multiple filter plate frames can cause upwards or flexural deformation to the left and right Spray mud.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide it is a kind of can slow down guide sleeve axis abrasion, avoid filtering The superelevation compression elasticity squeezer that the squeeze force of sheet frame flexural deformation is balanced, filter plate frame sealing force is constant.
Technical scheme is as follows:
The superelevation compression elasticity squeezer that a kind of squeeze force of the present invention is balanced, filter plate frame sealing force is constant, it includes rack, machine Several groups filter plate frame is arranged in order on frame;Frame front sets thrust plate, and rack rear portion sets thrust plate;Thrust plate and several groups filter plate Frame is respectively mounted on two crossbeams for being fixed on rack;Two crossbeams of rack are fixed on pedestal;Several groups filter plate frame position Between thrust plate, thrust plate;Several groups filter plate frame bottom both sides are equipped with water-accepting board;Rack front end is equipped with cylinder installation seat;Four The pressing oil of a same specification is uniformly arranged in cylinder installation seat, and the piston rod (i.e. four piston rods) of four pressing oils hangs down Directly in the compression face of thrust plate;The head of four piston rods is fixedly connected with thrust plate (can be fixed by flange and bolt and be connected It connects);The tie point of four piston rods and thrust plate, is distributed on the compression face of thrust plate, it is ensured that the squeezing of four same specifications The squeeze force that oil cylinder passes to thrust plate is balanced.
Further, the compression face of the thrust plate is square or rectangle;The connection of four piston rods and thrust plate Point is located in the diagonal line quartering corresponding points of the square or rectangular of thrust plate compression face, it is ensured that four same specifications The squeeze force that pressing oil passes to thrust plate is balanced.
Further, the filter plate frame of the squeezer, every group of filter plate frame by:One load sheet frame, several (20) Plunger case, a movable sheet frame, several connectors and the filter assemblies composition of axis are covered with self- steering;(in expressing process, plunger The sealing force that cylinder provides is kept constant, therefore is also constant force plunger case);Every plunger case band two-stage guide sleeve axis, that is,:Each Plunger case is equipped with two-stage guiding mechanism (including two-stage guide sleeve axis) altogether:Plunger rod doubles as level-one guiding axis and two level guide sleeve Seat;Cylinder body doubles as level-one guide sleeve seat;The nose bar of cylinder bottom doubles as two level guiding axis.Every plunger case includes cylinder body, cylinder bottom and column Stopper rod;Plunger rod doubles as level-one guiding axis and two level guide sleeve seat;Cylinder bottom includes bottom round block and from bottom round block middle section It protrudes and perpendicular to the nose bar of bottom round block, the nose bar of cylinder bottom is as two level guiding axis;It is a cavity inside plunger rod back segment, Plunger rod back segment be sleeved on outside the nose bar of cylinder bottom (hollowed out into inside plunger rod back segment one it is corresponding with nose bar accommodate it is convex The cavity of bar), plunger rod doubles as two level guide sleeve seat, that is, the guide sleeve seat of the nose bar of two level guiding axis, that is, cylinder bottom;Plunger rod Head is solid, in the mounting hole of plunger club head insertion activity sheet frame;Cylinder body is cylindrical, is set to the interior of load sheet frame In shrinkage pool (i.e. mounting hole);There are one flange, cylinder bodies to pass through the fixing screws of flange and its surrounding and load sheet frame for cylinder head It is fixedly connected;Cylinder base is sleeved on outside the bottom round block of cylinder bottom;Cylinder body front is sleeved on outside plunger rod, and cylinder body doubles as one Grade guide sleeve seat, that is, the guide sleeve seat of level-one guiding axis, that is, plunger rod.
Further, plunger rod is stainless steel, and cylinder body is cast steel, and cylinder bottom is carbon steel material.
Further, the technique oil duct being connected is internally provided in the circumferential side frame of load sheet frame;The one of load sheet frame Side bottom is equipped with technique oil duct general import and general export (being equipped with oil inlet and oil return pipe fitting);It is opened on the cylinder body cylinder of every plunger case (every group includes the technique oil inlet of side one, the technique oil export of the other side one) is imported and exported equipped with one group or several groups of technical oils, Technical oil inlet and outlet are communicated with the gap (larger space) between cylinder body and plunger rod;Four angles for being located at load sheet frame turn The technical oil exit that need not be connected at angle is equipped with technique oil duct screw plug;Gap (larger sky between cylinder body and plunger rod Between) be each plunger case share into, drainback passage;It is a cavity inside cylinder bottom;Between outer wall of cylinder block and load sheet frame there are Certain interval (smaller space), also there are certain interval (smaller space) between cylinder body, the bottom of cylinder bottom and load sheet frame, These gaps communicate, and are communicated with the cavity inside cylinder bottom;These gaps (smaller space) are with the cavity inside cylinder bottom Each plunger case into, drainback passage (be also known as local into, drainback passage).
Further, in plunger rod outer wall and inboard wall of cylinder block joint, it is equipped with the first wear ring (as level-one guide sleeve); In the nose bar joint of plunger rod back segment cavity inner wall and cylinder bottom, it is equipped with the second wear ring (as two level guide sleeve);Two-stage is led Use wear-resisting, low-friction coefficient, intensity height, material for the wear ring of polyformaldehyde to set (level-one guide sleeve and two level guide sleeve).
Further, level-one guide sleeve seat, that is, cylinder body cylinder inner wall adds the one shallow interior group of bumps of circle of centre by two circle deep grooves At i.e. level-one guide sleeve seat is:The lenticular structure that the shallow interior convex block of one circle of setting is formed among two circle deep grooves.Two circle deep grooves This lenticular structure that the shallow interior convex block of one circle of centre setting is formed can play the role of preferably fixing level-one guide sleeve.
Further, two level guide sleeve seat, that is, plunger rod back segment cavity inner wall adds the one shallow convex of circle of centre by two circle deep grooves Block forms, i.e. two level guide sleeve seat is:The lenticular structure that the shallow interior convex block of one circle of setting is formed among two circle deep grooves.Two circles are deep This lenticular structure that the shallow interior convex block of one circle of setting is formed among groove can play the role of preferably fixing two level guide sleeve.
Further, in piston rod and movable sheet frame junction, being equipped with eccentricity compensation adjustment ring, (polyformaldehyde material, is used for Compensation adjustment load sheet frame and movable sheet frame process the site error in hole), i.e.,:The mounting hole of piston rod head insertion activity sheet frame It is interior, with piston rod head joint in the mounting hole of movable sheet frame, it is equipped with eccentricity compensation adjustment ring;The eccentricity compensation adjustment ring Inner ring be ellipse, outer ring is circle, and the mounting hole inner ring of movable sheet frame is circle, and piston rod head outer ring is circle;Partially The outer ring of heart compensation adjustment ring is bonded with the mounting hole inner ring of movable sheet frame, the inner ring and piston rod head of eccentricity compensation adjustment ring There are gaps, piston rod head slightly to be deviated in the gap between outer ring, thus can be compensated and adjusted automatically load sheet frame and The Working position error of the mounting hole of movable sheet frame.
Further, piston rod head offers screw hole, is also to offer corresponding screw hole in movable sheet frame, this two Attachment screw is installed at a screw hole (screw hole of piston rod, the screw hole of activity sheet frame), in attachment screw and movable plate Anti-loosening spring washer is equipped between the screw hole of frame.
Further, the cylinder ports to connect with load sheet frame in the cylinder body of plunger case and piston rod joint, are equipped with dust-proof Sealing ring (dust-proof as plunger case, to keep off filtrate).
Further, in the cylinder body of plunger case and load sheet frame joint, it is (quiet close as plunger case to be equipped with O-ring seal Envelope).
Beneficial effects of the present invention:
The superelevation compression elasticity squeezer that the squeeze force of the present invention is balanced, filter plate frame sealing force is constant has following features:
(1) replace a large tank with the pressing oil of four same specifications, be applied on the thrust plate of squeezer and pressed It squeezes.The pressing oil of four same specifications and the tie point of thrust plate are located at pair of the square (or rectangle) of thrust plate compression face In the midpoint of linea angulata, that is, quartering corresponding points.In this way, the power that the pressing oil of four same specifications transmits is equal, oil cylinder transmits Force is equal at a distance from square intermediate point, square angle steel joint and square sideline midpoint.To, it is ensured that four The squeeze force that the pressing oil of same specification passes to thrust plate is balanced.
(2) the back pressure return pressure of suitable control single-action plunger piston cylinder is invariable, when having pressure on the plunger rod of plunger case When squeezing force effect, at this point, plunger case is equivalent to a constant force spring, this constant force remains unchanged in expressing process.This hair It is bright to make filter plate frame in expressing process for the first time by the application of function of constant force spring in the filter plate frame of superelevation compression elasticity squeezer, Sealing force is sufficiently large between filter plate frame, and keeps constant.
(3) present invention is by the guiding between load sheet frame and movable sheet frame, the two-stage developed, be designed to operate in fluid The interior guiding of guide sleeve axis.Stainless steel plunger is designed to double as level-one guiding axis and two level guide sleeve seat;Cast steel tank design at As level-one guide sleeve seat;Carbon steel cylinder bottom is designed to double as two level guiding axis;Two-stage guide sleeve using wear-resisting, low-friction coefficient, The wear ring finished product that intensity is high, material is polyformaldehyde.Two-stage guide sleeve axis is operated in fluid, and abrasion and frictional resistance are non- It is often small, to ensure that the depth of parallelism of the load sheet frame and movable sheet frame of filter plate frame in expressing process.
(4) the superelevation compression elasticity squeezer that the squeeze force is balanced, filter plate frame sealing force is constant, in piston rod head and activity Sheet frame junction, setting inner ring is ellipse, outer ring is circular eccentricity compensation adjustment ring, and load sheet frame can be compensated and adjusted automatically With the site error in the processing hole of movable sheet frame, the processing request of fixing sheet frame and the mounting hole on movable sheet frame is substantially reduced.
Description of the drawings
Fig. 1 is that a kind of squeeze force of the present invention is balanced, whole knot of the constant superelevation compression elasticity squeezer of filter plate frame sealing force Structure schematic diagram;
Fig. 2 be a kind of squeeze force of the present invention it is balanced, the constant superelevation compression elasticity squeezer of filter plate frame sealing force four it is same The connection of the piston rod and thrust plate of the pressing oil of specification;
Fig. 3 is the A-A enlarged drawings in Fig. 2;
Fig. 4 is that a kind of squeeze force of the present invention is balanced, the constant superelevation compression elasticity squeezer of filter plate frame sealing force hydraulic pressure is former Reason figure;
Fig. 5 is the main structure diagram of the filter plate frame that axis constant force plunger case is covered with self- steering in the present invention;
Fig. 6 is the B-B cut away views (stretching out state) in Fig. 5;
Fig. 7 is the left view structural representation of the filter plate frame that axis constant force plunger case is covered with self- steering in the present invention;
Fig. 8 is the A-A cut away views in Fig. 7;
Fig. 9 is the overlooking structure diagram of the filter plate frame that axis constant force plunger case is covered with self- steering in the present invention;
Figure 10 is the C-C cut away views (stretching out state) in Fig. 5;
Figure 11 is the C-C cut away views (squeezing state) in Fig. 5;
Figure 12 is the I/ partial enlarged views in Figure 10;
Figure 13 is D-D cuttings/partial enlarged view in Figure 12;
Figure 14 is II/partial enlarged view in Figure 10;
Figure 15 is III/partial enlarged view in Figure 11;
Figure 16 is the structural schematic diagram of the cylinder body 61 in the present invention;
Figure 17 is the structural schematic diagram of the plunger rod 66 in the present invention;
Figure 18 is the structural schematic diagram of the cylinder bottom 62 in the present invention;
Figure 19 is the dimensional structure diagram of the eccentricity compensation adjustment ring 53 in the present invention;
Figure 20 is the positive structure schematic of the eccentricity compensation adjustment ring 53 in the present invention;
Figure 21 is the schematic diagram of the plunger case stretching state in the present invention;
Figure 22 is the schematic diagram of the plunger case returns state in the present invention.
In Fig. 1-Fig. 3:45- cylinder installation seat 46- pressing oil 47- piston rod 48- thrust plate 49- thrust plates 50- Filter plate frame 71- crossbeam 72- mounting seat 73- water-accepting boards
In Fig. 5-Figure 20:51, load sheet frame 52, movable sheet frame 53, eccentricity compensation adjustment ring 531, eccentricity compensation adjustment Ring inner ring 532, eccentricity compensation adjustment ring outer ring 54, dust-proof seal ring 55, O-ring seal 56, mounting hole 57, spring pad Circle 58, attachment screw 59, fixing screws 60, plunger case 61, cylinder body 62, cylinder bottom 63, cavity 64, nose bar 65, cavity 66, plunger rod 660, plunger rod outer ring 67, the first wear ring 68, the second wear ring 69, weeper 70, lenticular structure
80, technique oil duct 81, oil inlet and oil return pipe fitting 82, technique oil inlet 83, technique oil export 84, technique oil duct spiral shell It is stifled
Specific implementation mode
Below in conjunction with drawings and examples, the present invention is further illustrated.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, the superelevation compression elasticity pressure that a kind of squeeze force of the present invention is balanced, filter plate frame sealing force is constant Crusher, it includes rack, and several groups filter plate frame 50 is arranged in order in rack;Frame front sets thrust plate 48, and rack rear portion is set only Push plate 49;Thrust plate 48 and several groups filter plate frame 50 are respectively mounted on two crossbeams 71 for being fixed on rack;Two crossbeams of rack 71 are fixed in mounting seat 72;Several groups filter plate frame 50 is between thrust plate 49, thrust plate 48;Several groups filter plate frame 50 lower parts both sides are equipped with water-accepting board 73;Rack front end is equipped with cylinder installation seat 45;The pressing oil 46 of four same specifications is laid It sets in (being mounted on) cylinder installation seat 45, the piston rod 47 (i.e. four piston rods 47) of four pressing oils 46 is perpendicular to thrust The compression face of plate 48, four 47 parallel and symmetrical of piston rod settings;The head of four piston rods 47 is fixedly connected with thrust plate 48 (being fixedly connected with bolt by flange);The tie point of four piston rods 47 and thrust plate 48, be distributed on thrust plate 48 by On pressure surface.
As shown in Figure 1, the present invention superelevation compression elasticity squeezer rack mainly by crossbeam 71, cylinder installation seat 45, only Push plate 49 and mounting seat 72 are constituted;It carries whole squeeze forces and the weight of its upper part and the weight of sludge.It pushes away Power plate 48 and several groups filter plate frame 50 are installed on two crossbeams 71 of rack (removable to unload down).
As shown in Fig. 2, the compression face of thrust plate 48 is square;The tie point of four piston rods 47 and thrust plate 48, position In in the diagonal line quartering corresponding points of thrust plate 48 compression face square, the pressing oil 46 of four same specifications thus can guarantee The squeeze force for passing to thrust plate 48 is balanced.
It is that a kind of squeeze force of the present invention is balanced, liquid of the constant superelevation compression elasticity squeezer of filter plate frame sealing force shown in Fig. 4 Press schematic diagram.The names of the parts and function are as follows in Fig. 4:
1--- fuel tanks;Store hydraulic oil, hydraulic oil heat dissipation.
2--- low pressure ball valves;Hydraulic oil is discharged when maintenance.
3--- liquid level gauges;Show fuel tank memory oil mass.
4--- air cleaners;Fuel tank pneumostome, oil filler.
5--- liquid level relays;The low alarm of liquid level in fuel tank.
6--- magnetic filters;Filter out magnetic impurity in fluid.
7--- motor;Convert electric energy to mechanical energy.
8--- bell jar shaft couplings;Couple motor and deciding grade and level Variable plunger pump.
9--- oil absorption filters;Filter out hydraulic pressure well cuts.
10-- deciding grade and level Variable plunger pumps;Convert mechanical energy into hydraulic energy.Flow is big when low pressure, and flow is small when high pressure.
11-- pressure ga(u)ge dampers;Compensator or trimmer pressure oil surge table.
12-- pressure gauges;Show current oil pressure.
13-- electromagnetic relief valves;It obtains electric construction and founds pressure, power off off-load.
14-- check valves;Prevent hydraulic oil from flowing backwards.
15-- electro-hydraulic reversing valves;Obtain electric transformation pressure oil flow direction.
16-- hydraulic control one-way valves;Keep oil pressure in oil circuit.
17-- one-way throttle valves;Stablize fluid in oil circuit to flow.
18-- pressure converters;Current oil pressure is converted into electric signal.
19-- pressure ga(u)ge dampers;Compensator or trimmer pressure oil surge table.
20-- pressure gauges;Show current oil pressure.
21-- pressure gauges;Show current oil pressure.
22-- pressure ga(u)ge dampers;Compensator or trimmer pressure oil surge table.
23-- pressure switches;Current oil pressure is converted into switching signal.
24-- solenoid directional control valves;Obtain electric transformation pressure oil flow direction.
25-- hydraulic control one-way valves;Keep oil pressure in oil circuit.
26-- overflow valves;In accumulator off-load, extra control pressure oil is discharged.
27-- overflow valves;In squeezing, the pressure oil in back pressure drain spool cylinder keeps power in plunger case constant.
28-- high-pressure ball valves;It is closed in accumulator inflated with nitrogen.
29-- accumulators;In expressing process, the oil pressure in plunger case is kept.
30-- pressure ga(u)ge dampers;Compensator or trimmer pressure oil surge table.
31-- pressure gauges;Show current oil pressure.
32-- pressure converters;Current oil pressure is converted into electric signal.
33-- limit switches;When squeezing on earth, switching signal is sent out.
34-- limit switches;When thrust plate reaches locked position, switching signal is sent out.
35-- limit switches;When pressing oil returns to bottom, switching signal is sent out.
36-- overflow valves;In expressing process, pressing oil 4. pressure be more than pressing oil 2. when, 4. to 2. oil extraction.
37-- overflow valves;In expressing process, pressing oil 2. pressure be more than pressing oil 4. when, 2. to 4. oil extraction.
38-- synchronous valves;In expressing process, keep pressing oil 2. with pressing oil 4. synchronizing moving.
39-- overflow valves;1. and 3. 2. and 4. in expressing process, pressing oil is when pressure is more than pressing oil, 2. and 4. to 3. 1. oil extraction.
40-- overflow valves;2. and 4. 1. and 3. in expressing process, pressing oil is when pressure is more than pressing oil, 1. and 3. to 4. 2. oil extraction.
41-- synchronous valves;In expressing process, the pressing oil 1. and 3. 2. and 4. synchronizing moving with pressing oil is kept.
42-- synchronous valves;In expressing process, keep pressing oil 1. with pressing oil 3. synchronizing moving.
43-- overflow valves;In expressing process, pressing oil 1. pressure be more than pressing oil 3. when, 1. to 3. oil extraction.
44-- overflow valves;In expressing process, pressing oil 3. pressure be more than pressing oil 1. when, 3. to 1. oil extraction.
1. 2. 3. 4. 47- piston rods 48- thrust plates 49- thrust plates 50- is filtered 45- cylinder installation seat 46- pressing oils Sheet frame
As shown in Fig. 5-Figure 20, the filter plate frame 50 of superelevation compression elasticity squeezer of the invention is that band self- steering covers axis constant force column The filter plate frame of plug cylinder, every group of filter plate frame 50 by:One load sheet frame, 51,20 constant force plunger cases 60 with self- steering set axis, One movable sheet frame 52, several connectors and filter assemblies composition;(in expressing process, the sealing force that plunger case provides is kept It is constant, therefore also it is constant force plunger case);Every plunger case 60 with two-stage guide sleeve axis, that is,:Every plunger case is equipped with two-stage altogether Guiding mechanism (including two-stage guide sleeve axis):Plunger rod 66 doubles as level-one guiding axis and two level guide sleeve seat;Cylinder body 61 doubles as one Grade guide sleeve seat;The nose bar 64 of cylinder bottom 62 doubles as two level guiding axis.Plunger rod 66 is stainless steel, and cylinder body 61 is cast steel material Matter, cylinder bottom 62 are carbon steel material.
Every plunger case 60 includes cylinder body 61, cylinder bottom 62 and plunger rod 66;Plunger rod 66 doubles as level-one guiding axis and two level Guide sleeve seat;Cylinder bottom 62 includes bottom round block and is protruded from bottom round block middle section and perpendicular to the nose bar of bottom round block 64, The nose bar 64 of cylinder bottom is used as two level guiding axis;It is a cavity 65 inside 66 back segment of plunger rod, 66 back segment of plunger rod is sleeved on cylinder 64 outside of nose bar at bottom (hollows out into a cavity for accommodating nose bar 64 corresponding with nose bar 64 inside 66 back segment of plunger rod 65), plunger rod 66 doubles as two level guide sleeve seat, that is, the guide sleeve seat of two level guiding axis (nose bar 64 of cylinder bottom);Plunger rod 66 Head is solid, in the mounting hole 56 of 66 head insertion activity sheet frame 52 of plunger rod;Cylinder body 61 is cylindrical, is set to load In the concave hole (i.e. mounting hole) of sheet frame 51;61 head of cylinder body is there are one flange, the fixation that cylinder body 61 passes through flange and its surrounding Screw 59 is fixedly connected with load sheet frame 51;61 bottom of cylinder body is sleeved on outside the bottom round block of cylinder bottom 62;61 front of cylinder body covers Mounted in 66 outside of plunger rod, cylinder body 61 doubles as level-one guide sleeve seat, that is, the guide sleeve seat of level-one guiding axis (plunger rod 66).
The technique oil duct 80 being connected is internally provided in the circumferential side frame of load sheet frame 51;At the side bottom of load sheet frame 51 Portion is equipped with technique oil duct general import and general export (i.e. oil inlet and oil return pipe fitting 81);It is opened on 61 cylinder of cylinder body of every plunger case 60 If there are four technical oil inlet and outlet, (two groups, every group includes the technique oil inlet 82 of the side one i.e. oil inlet of plunger case, the other side One technique oil export 83 is the oil outlet of plunger case), gap (larger space) phase between cylinder body 61 and plunger rod 66 It is logical;It is located at the technique oil export 83 that four angles corner of load sheet frame need not communicate and is equipped with technique oil duct screw plug 84, use Screw plug blocks that (four plunger cases 60 on four angles of load sheet frame 51 share eight technique oil exports 83, wherein seven Technique oil export 83 is blocked with screw plug, and a technique oil export 83 is logical);Gap between cylinder body 61 and plunger rod 66 is (larger Space) it is the oil inlet and oil return channel that each plunger case 60 shares;There are one cavitys 63 for 62 inside of cylinder bottom;61 outer wall of cylinder body and load sheet frame There are certain interval (smaller space) between 51, also there are certain between cylinder body 61, the bottom of cylinder bottom 62 and load sheet frame 51 Gap (smaller space), these gaps communicate, and are communicated with the cavity 63 inside cylinder bottom;These gaps (smaller space) It is the oil inlet and oil return channel (being also known as local oil inlet and oil return channel) of each plunger case 60 with the cavity 63 inside cylinder bottom 62.In force bearing plate It is additionally provided with multiple weepers 69 in the bottom frame of frame 51, is used for the discharge of filtrate.
In 66 outer wall of plunger rod and 61 inner wall joint of cylinder body, it is equipped with the first wear ring 67 (as level-one guide sleeve); 64 joint of nose bar of 66 back segment cavity of plunger rod, 65 inner wall and cylinder bottom 62 is equipped with the second wear ring 68 and (is oriented to as two level Set);Two-stage guide sleeve uses wear-resisting, low-friction coefficient, intensity height, material for the wear ring of polyformaldehyde.
Level-one guide sleeve seat, that is, 61 cylinder inner wall of cylinder body adds the one shallow interior convex block of circle of centre to form by two circle deep grooves, i.e. level-one Guide sleeve seat is:The lenticular structure 70 that the shallow interior convex block of one circle of setting is formed among two circle deep grooves.It is set among two circle deep grooves Setting this lenticular structure that the shallow interior convex block of a circle is formed can play the role of preferably fixing level-one guide sleeve.
Two level guide sleeve seat, that is, 66 back segment cavity of plunger rod, 65 inner wall adds the one shallow interior group of bumps of circle of centre by two circle deep grooves At i.e. two level guide sleeve seat is:The lenticular structure 70 that the shallow interior convex block of one circle of setting is formed among two circle deep grooves.Two circles are deep recessed This lenticular structure that the shallow interior convex block of one circle of setting is formed among slot can play the role of preferably fixing two level guide sleeve.
As shown in Figure 12 and Figure 13, in plunger rod 66 and 52 junction of movable sheet frame, it is (poly- to be equipped with eccentricity compensation adjustment ring 53 Formaldehyde material, the site error in the processing hole for compensation adjustment load sheet frame 51 and movable sheet frame 52), i.e.,:Plunger rod 66 In the mounting hole 56 of portion's insertion activity sheet frame 52, movable sheet frame 52 mounting hole 56 in 66 head joint of plunger rod, if There is eccentricity compensation adjustment ring 53;The inner ring (i.e. eccentricity compensation adjustment ring inner ring 531) of the eccentricity compensation adjustment ring 53 is ellipse, The outer ring (i.e. eccentricity compensation adjustment ring outer ring 532) of the eccentricity compensation adjustment ring 53 is that (as shown in Figure 19, Figure 20, this is partially for circle The outer ring diameter of a circle of heart compensation adjustment ring is 63mm;Elliptical two opposite ends of inner ring of the eccentricity compensation adjustment ring away from From maximum is 52mm, minimum for 50mm);56 inner ring of mounting hole of movable sheet frame 52 is circle, 66 head outer ring of plunger rod (i.e. plunger rod outer ring 660) is circle;The outer ring of eccentricity compensation adjustment ring 53 is bonded with 56 inner ring of mounting hole of movable sheet frame 52, There are gaps (i.e. in eccentricity compensation adjustment ring for left-right parts between eccentricity compensation adjustment ring inner ring 531 and plunger rod outer ring 660 Between the interior oval and outer circle of plunger rod, on 360 ° of directions, there is the eccentricity compensation adjustment amount of ± 1mm), 66 head of plunger rod can It is slightly deviated in the gap, the Working position of the mounting hole of load sheet frame 51 and movable sheet frame 52 thus can be compensated and adjusted automatically Error.
66 head of plunger rod offers screw hole (at front end center), is also to offer corresponding screw in movable sheet frame 52 Hole is equipped with attachment screw 58 at the two screw holes screw hole of movable sheet frame (screw hole of piston rod), in attachment screw It is equipped with anti-loosening spring washer 57 between 58 and the screw hole of movable sheet frame 52.
In the cylinder ports that the cylinder body 61 of plunger case 60 connects with load sheet frame 51 and 66 joint of plunger rod, it is equipped with dust-proof close Seal 54 (dust-proof as plunger case, to keep off filtrate).
Cylinder body 61 in plunger case 60 and 51 joint of load sheet frame, it is (quiet close as plunger case to be equipped with O-ring seal 55 Envelope).
The squeeze force equilibrium of the present invention, the installation and application of the constant superelevation compression elasticity squeezer of filter plate frame sealing force are such as Under:In use, installing 20 guide sleeve axis originally between the fixing sheet frame and movable sheet frame of every group of filter plate frame of squeezer Position, make the of the invention constant force plunger cases that axis is covered with self- steering of installation 20 into.Also that is, it is (fixed in load sheet frame 51 Sheet frame) circumferential side frame on dig a concave hole (mounting hole) at spacing intervals, on movable sheet frame 52 also correspondingly every One determining deviation digs a corresponding concave hole (mounting hole), and band is installed in the mounting hole of load sheet frame 51 and movable sheet frame 52 Self- steering covers the constant force plunger case of axis.Every specific installation method of constant force plunger case that axis is covered with self- steering is:First, by column 61 cylinder of cylinder body of plug cylinder 60 is put into the mounting hole of load sheet frame 51, by the cylinder body that fixing screws 59 are inserted into plunger case 60 It in the screw hole of 61 outer ring flanges and the screw hole of load sheet frame 51 and tightens, the cylinder body 61 of plunger case 60 is fixed on and is held On power sheet frame 51;Then, the cylinder bottom 62 of plunger case 60 is mounted in 61 cylinder of cylinder body;Later, the back segment of plunger rod 66 is pacified Between cylinder body 61 and cylinder bottom 62, by the mounting hole of the front end insertion activity sheet frame 52 of plunger rod 66, by compensating automatically 53 compensation adjustment load sheet frame of eccentric lantern ring and movable sheet frame process the site error in hole;Finally, attachment screw 58 is inserted into and is lived It in the screw hole of movable plate frame 52 and the screw hole of plunger rod 66 and tightens, you can fix 66 front end of plunger rod and movable sheet frame 52 It links together.
The squeeze force of the present invention is balanced, the operating principle of the constant superelevation compression elasticity squeezer of filter plate frame sealing force is as follows:
As shown in Fig. 8, Figure 10, Figure 14, Figure 21, the pressure oil that is come out from hydraulic station fuel tank by technique oil duct general import and General export (i.e. oil inlet and oil return pipe fitting 81), oil inlet and oil return channel (i.e. technique oil duct 80), technique oil inlet 82 enter plunger case 60 (into Oil), a part enters the gap between cylinder body 61 and plunger rod 66, and from technique oil export 83, out (i.e. each plunger case shares Into, drainback passage), into next plunger case 60;Another part enters the gap between 61 outer wall of cylinder body and load sheet frame 51, The gap between cylinder body 61, the bottom of cylinder bottom 62 and load sheet frame 51 is entered back into, enters back into the cavity 63 inside cylinder bottom later, it The cavity 65 (i.e. local oil inlet and oil return channel) for entering back into 66 back segment of plunger rod afterwards, plunger rod is pushed by the oil pressure in plunger case 66 stretch out, and transmit the force to movable sheet frame 52.
As shown in Fig. 8, Figure 11, Figure 15, Figure 22, external force is acted on by movable sheet frame 52 on plunger rod 66, plunger rod 66 Retract, in plunger case oil by local oil inlet and oil return channel be discharged plunger case 60 (oil return), then by each plunger case share into, Drainback passage and technique oil duct 80, oil return to next plunger case 60, finally by oil inlet and oil return pipe fitting 81, oil return to hydraulic station Fuel tank.
The squeeze force of the present invention is balanced, the expressing process of the constant superelevation compression elasticity squeezer of filter plate frame sealing force is as follows:
One, plunger cases stretch out
Motor 7 starts -- and for the hydraulic oil of deciding grade and level Variable plunger pump 10 through electromagnetic relief valve 13, fuel tank 1-- electricity is flowed back in off-load The electromagnet DT0 of the magnetic overflow valve 13 and electromagnet DT3 of solenoid directional control valve 24 obtains electric -- the hydraulic oil of deciding grade and level Variable plunger pump 10 Successively filter plate frame is flowed to through check valve 14, the P of solenoid directional control valve 24 and B mouthfuls, hydraulic control one-way valve 25, plunger case 60 -- when pressure turns When 32 pressure of parallel operation reaches 16MPa, plunger case 60 all stretches out, and DT0 and DT3 are disconnected, and the stretching of plunger case 60 terminates.Motor 7 Still start, for the hydraulic oil for Variable plunger pump 10 of defining the level through electromagnetic relief valve 13, fuel tank 1 is flowed back in off-load, waits for next action.
Two, pressing oil F.F.s
The electromagnet DT0 of the electromagnetic relief valve 13 and electromagnet DT1 of electro-hydraulic reversing valve 15 obtains electric -- deciding grade and level Variable plunger pump 10 hydraulic oil successively through check valve 14, P and B mouthfuls of electro-hydraulic reversing valve 15, it is hydraulic control one-way valve 16, one-way throttle valve 17, synchronous Valve 41, synchronous valve 38 and synchronous valve 42, flow into from pressing oil rodless cavity -- it is flowed out from pressing oil rod chamber, through electro-hydraulic commutation A and T mouthfuls of valve 15, flow back to fuel tank 1.Hydraulic fluid pressure low discharge is big at this time, and deciding grade and level Variable plunger pump 10 is automatically converted into low pressure Big flow operational mode.Pressing oil 46 fast moves -- and when thrust plate is pressed onto limit switch 34, DT0 and DT1 are disconnected, squeezing 46 F.F. of oil cylinder terminates, and prepares into mud.At this point, motor 7 still starts, the hydraulic oil for Variable plunger pump 10 of defining the level overflows through electromagnetism Valve 13 is flowed, off-load flows back to fuel tank 1, waits for next action.
Three, pressing oil pressurizes, into mud
When into mud, plunger case 60 is to lean on 25 pressurize of accumulator 29 and hydraulic control one-way valve;Pressing oil 46 is to lean on fluid-control one-way 16 pressurize of valve.If 32 pressure of pressure converter is less than 16MPa, DT0 and DT3 obtain electric, and ftercompction is carried out to plunger case 60.Into mud In the process, limit switch 34 must be to turn on, if limit switch 34 disconnects, DT0 and DT3 obtain it is electric, to pressing oil 46 into Row ftercompction.When reaching 1.2MPa (being measured into mud pressure by the pressure sensor of enters mud pipe road) into mud pressure, terminate into mud.
Four, pressing oils discontinuously squeeze
Terminate into mud, is transformed into interrupted expressing process.The electricity of the electromagnet DT0 and electro-hydraulic reversing valve 15 of electromagnetic relief valve 13 Magnet DT1 is interrupted to obtain electric, disconnection, is squeezed.At this point, the squeeze pressure of pressing oil 46 discontinuously rises, hydraulic fluid pressure is high Flow is small, and deciding grade and level Variable plunger pump 10 is automatically converted into high-pressure low-flow operational mode.Meanwhile plunger case 60 is compressed, the back of the body Oil is pushed back to be forcibly opened by overflow valve 27 to realize.The pressure of overflow valve 27 is adjusted to 20MPa, the pressure in plunger case Power is also 20MPa, so the power that plunger case is transmitted is constant.That is, plunger case 60 is equivalent to a kind of constant force here Spring.When thrust plate is pressed onto limit switch 33 or when the pressure of pressure converter 18 reaches 24MPa, squeezing can be used as The condition that process terminates, expressing process terminate.DT0 and DT1 is disconnected, and prepares next action.
Five, pressing oil pressurizes, delay
Interrupted expressing process terminates, and pressing oil needs pressurize, delay a period of time.The main sludge of delay time length is special Depending on property, usual 60 seconds to 120 seconds.Pressurize after delay, opens water-accepting board.
Six, plunger case releases of pressure
The electromagnet DT0 of the electromagnetic relief valve 13 and electromagnet DT4 of solenoid directional control valve 24 obtains electric -- deciding grade and level Variable plunger pump 10 hydraulic oil is successively through check valve 14, the P of solenoid directional control valve 24 and A mouthfuls, the control port of hydraulic control one-way valve 25, overflow valve 26 Flow back to fuel tank;Meanwhile the hydraulic oil in plunger case 60 is through 25 reverse flow of hydraulic control one-way valve, then the B through solenoid directional control valve 24 and T Mouth flows back to fuel tank.60 release of pressure of plunger case can be completed for 3 seconds.
Seven, pressing oils are quickly retracted
The electromagnet DT0 of the electromagnetic relief valve 13 and electromagnet DT2 of electro-hydraulic reversing valve 15 obtains electric -- deciding grade and level Variable plunger pump 10 hydraulic oil is through check valve 14, and P and A mouthfuls of electro-hydraulic reversing valve 15, pressing oil rod chamber, pressing oil rodless cavity synchronizes Valve 38 and synchronous valve 42, synchronous valve 41, one-way throttle valve 17 control check valve 16, B and T mouthfuls of electro-hydraulic reversing valve 15, flow back to oil Case.Hydraulic fluid pressure low discharge is big at this time, and deciding grade and level Variable plunger pump 10 is automatically converted into low pressure and mass flow operational mode.Expressed oil Cylinder is quickly retracted -- and when thrust plate is pressed onto limit switch 35, DT0 and DT2 are disconnected, and pressing oil quickly retracts end.Motor 7 close, and prepare mud extraction.
The superelevation compression elasticity squeezer that the squeeze force of the present invention is balanced, filter plate frame sealing force is constant has following features:
(1) thrust plate of squeezer, filter plate frame and thrust plate are still square.With the pressing oil of four same specifications Replace a large tank.The connection of the pressing oil and thrust plate of four same specifications is located at square cornerwise midpoint i.e. four etc. Divide in corresponding points.In this way, the power that the pressing oil of four same specifications transmits is equal, oil cylinder transmits among force and square The distance of point, square angle steel joint and square sideline midpoint is equal.To, it is ensured that the pressing oil of four same specifications The squeeze force for passing to thrust plate is balanced.
(2) filter plate frame uses the constant force plunger case that axis is covered with two-stage self- steering, can guarantee load sheet frame and the work of filter plate frame The depth of parallelism of the movable plate frame in expressing process;Also make filter plate frame in expressing process, sealing force is sufficiently large between filter plate frame, and protects It holds constant.By the guiding between load sheet frame and movable sheet frame, exploitation is designed to operate in the two-stage guide sleeve axis in fluid Interior guiding, substantially reduces abrasion and frictional resistance.
(3) circumferential side frame of load sheet frame uses steel-casting, technique oil duct to be made in casting, solves the tired of drilling deep hole Difficult problem (circumferential side frame of existing load sheet frame is made with square steel).Load sheet frame steel-casting after machining, is being pressed Rigidity is good during squeezing, and is unlikely to deform, spray mud caused by solving the problems, such as in expressing process due to sheet frame deform.
(4) in piston rod head and movable sheet frame junction, setting inner ring is ellipse, outer ring is circular eccentricity compensation Adjustment ring can be compensated and adjusted automatically the Working position error of the mounting hole of load sheet frame and movable sheet frame, substantially reduce fixed plate The processing request of frame and the mounting hole on movable sheet frame.

Claims (10)

  1. The superelevation compression elasticity squeezer that 1. a kind of squeeze force is balanced, filter plate frame sealing force is constant, which is characterized in that it includes machine Frame is arranged in order several groups filter plate frame in rack;Frame front sets thrust plate, and rack rear portion sets thrust plate;Thrust plate and several Group filter plate frame is respectively mounted on two crossbeams for being fixed on rack;Two crossbeams of rack are fixed on pedestal;Several groups are filtered Sheet frame is between thrust plate, thrust plate;Several groups filter plate frame bottom both sides are equipped with water-accepting board;It is installed equipped with oil cylinder rack front end Seat;The pressing oil of four same specifications is uniformly arranged in cylinder installation seat, the piston rod i.e. four piece piston of four pressing oils Compression face of the bar perpendicular to thrust plate;The head of four piston rods is fixedly connected with thrust plate;Four piston rods and thrust plate Tie point is distributed on the compression face of thrust plate.
  2. 2. the superelevation compression elasticity squeezer that squeeze force as described in claim 1 is balanced, filter plate frame sealing force is constant, feature exist In the compression face of the thrust plate is square or rectangle;The tie point of four piston rods and thrust plate, be located at thrust plate by In the diagonal line quartering corresponding points of pressure surface square or rectangular.
  3. 3. the superelevation compression elasticity squeezer that squeeze force as claimed in claim 1 or 2 is balanced, filter plate frame sealing force is constant, special Sign is, every group of filter plate frame by:One load sheet frame, several cover the plunger cases of an axis, movable sheet frame, several with self- steering Connector and filter assemblies composition;It includes two-stage guide sleeve axis that every plunger case, which is equipped with two-stage guiding mechanism i.e.,;Every plunger case Including cylinder body, cylinder bottom and plunger rod;Plunger rod doubles as level-one guiding axis and two level guide sleeve seat;Cylinder bottom include bottom round block and from Bottom round block middle section protrudes and perpendicular to the nose bar of bottom round block, and the nose bar of cylinder bottom is as two level guiding axis;After plunger rod Intersegmental part is a cavity, and plunger rod back segment is sleeved on outside the nose bar of cylinder bottom, i.e., hollowed out into inside plunger rod back segment one with The corresponding cavity for accommodating nose bar of nose bar, plunger rod double as two level guide sleeve seat, that is, the nose bar of two level guiding axis, that is, cylinder bottom Guide sleeve seat;Plunger club head is solid, in the mounting hole of plunger club head insertion activity sheet frame;Cylinder body is cylindrical, It is set in the concave hole i.e. mounting hole of load sheet frame;Cylinder head there are one flange, by flange and its surrounding consolidated by cylinder body Determine screw to be fixedly connected with load sheet frame;Cylinder base is sleeved on outside the bottom round block of cylinder bottom;Cylinder body front is sleeved on plunger Outside bar, cylinder body doubles as level-one guide sleeve seat, that is, the guide sleeve seat of level-one guiding axis, that is, plunger rod.
  4. 4. the superelevation compression elasticity squeezer that squeeze force as claimed in claim 3 is balanced, filter plate frame sealing force is constant, feature exist In being internally provided with the technique oil duct being connected in the circumferential side frame of load sheet frame;It is equipped with technique in a side bottom of load sheet frame Oil duct general import and general export are equipped with oil inlet and oil return pipe fitting;One group or several is offered on the cylinder body cylinder of every plunger case Group technical oil inlet and outlet, every group includes the technique oil inlet of side one, the technique oil export of the other side one;The technical oil is imported and exported Gap between cylinder body and plunger rod communicates;It is logical into, oil return that gap between cylinder body and plunger rod is that each plunger case is shared Road;It is a cavity inside cylinder bottom;There are certain interval between outer wall of cylinder block and load sheet frame, cylinder body, cylinder bottom bottom with hold Also there are certain interval between power sheet frame, these gaps communicate, and are communicated with the cavity inside cylinder bottom;These gaps and cylinder bottom Internal cavity is each plunger case into, drainback passage.
  5. 5. the superelevation compression elasticity squeezer that squeeze force as claimed in claim 3 is balanced, filter plate frame sealing force is constant, feature exist In in plunger rod outer wall and inboard wall of cylinder block joint, equipped with the first wear ring, as level-one guide sleeve;It is empty in plunger rod back segment The nose bar joint of cavity wall and cylinder bottom is equipped with the second wear ring, as two level guide sleeve;Level-one guide sleeve and two level guide sleeve Use material for the wear ring of polyformaldehyde.
  6. 6. the superelevation compression elasticity squeezer that squeeze force as claimed in claim 3 is balanced, filter plate frame sealing force is constant, feature exist In level-one guide sleeve seat, that is, cylinder body cylinder inner wall adds the one shallow interior convex block of circle of centre to form by two circle deep grooves, i.e. level-one guide sleeve Seat be:The lenticular structure that the shallow interior convex block of one circle of setting is formed among two circle deep grooves;Two level guide sleeve seat, that is, plunger rod back segment Cavity inner wall adds the one shallow interior convex block of circle of centre to form by two circle deep grooves, i.e. two level guide sleeve seat is:It is set among two circle deep grooves Set the lenticular structure that the shallow interior convex block of a circle is formed.
  7. 7. the superelevation compression elasticity squeezer that squeeze force as claimed in claim 3 is balanced, filter plate frame sealing force is constant, feature exist In, in the mounting hole of movable sheet frame with piston rod head joint, be equipped with eccentricity compensation adjustment ring;The eccentricity compensation adjustment ring Inner ring be ellipse, outer ring is circle, and the mounting hole inner ring of movable sheet frame is circle, and piston rod head outer ring is circle;Partially The outer ring of heart compensation adjustment ring is bonded with the mounting hole inner ring of movable sheet frame, the inner ring and piston rod head of eccentricity compensation adjustment ring There are gaps, piston rod head slightly to be deviated in the gap between outer ring.
  8. 8. the superelevation compression elasticity squeezer that squeeze force as claimed in claim 3 is balanced, filter plate frame sealing force is constant, feature exist In piston rod head offers screw hole, is also to offer corresponding screw hole in movable sheet frame, the two screw hole, that is, pistons Attachment screw is installed at the screw hole of bar, the screw hole of activity sheet frame, between attachment screw and the screw hole of movable sheet frame Equipped with anti-loosening spring washer.
  9. 9. the superelevation compression elasticity squeezer that squeeze force as claimed in claim 3 is balanced, filter plate frame sealing force is constant, feature exist In in the cylinder ports that the cylinder body of plunger case connects with load sheet frame and piston rod joint, equipped with dust-proof seal ring, as plunger Cylinder is dust-proof.
  10. The superelevation compression elasticity squeezer that 10. squeeze force as claimed in claim 3 is balanced, filter plate frame sealing force is constant, feature It is, in cylinder body and the load sheet frame joint of plunger case, O-ring seal is equipped with, as plunger case static seal.
CN201810790181.0A 2018-07-18 2018-07-18 Ultra-high pressure elastic squeezer with balanced squeezing force and constant sealing force of filter plate frame Active CN108635921B (en)

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CN109925771A (en) * 2019-04-22 2019-06-25 重庆长能环境科技有限公司 A kind of compressible oil cylinder sheet frame filter plate of super-pressure
CN113443807A (en) * 2021-08-30 2021-09-28 天津市星拓科技发展有限公司 High-pressure sealed filter plate unit structure and using method

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CN109925771A (en) * 2019-04-22 2019-06-25 重庆长能环境科技有限公司 A kind of compressible oil cylinder sheet frame filter plate of super-pressure
CN113443807A (en) * 2021-08-30 2021-09-28 天津市星拓科技发展有限公司 High-pressure sealed filter plate unit structure and using method
CN113443807B (en) * 2021-08-30 2021-11-19 天津市星拓科技发展有限公司 High-pressure sealed filter plate unit structure and using method

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