CN2347730Y

CN2347730Y - Integral distributing high pressure intensity press for oil cylinder

Info

Publication number: CN2347730Y
Application number: CN 97224210
Authority: CN
Inventors: 原泽; 原亮
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-08-08
Filing date: 1997-08-08
Publication date: 1999-11-10
Anticipated expiration: 2007-08-08

Abstract

The utility model relates to an integral distributing high pressure intensity press for oil cylinders. The upper part of a pressure supporting frame of the utility model is provided with a top plate, the lower part of the pressure supporting frame is provided with a bottom plate, and the middle of the pressure supporting frame is connected with an upright post. The upper part of the bottom plate is provided with an integrated distributing oil cylinder group and a hydraulic control device. The whole body of the oil cylinder has an integral structure that at least seven horizontal planes of a steel plate are processed into cylinder body holes which are evenly arranged in a dense mode. An oil path pipeline of the oil cylinder is arranged between the oil cylinder holes. The utility model has the advantages of small size, light weight, reasonable and compact structure, high total work tonnage and wide application ranges; in addition, the utility model can provide high pressure intensity. Thereby, the utility model is particularly suitable for an artificial plate hot press with large amplitude surface, high pressure intensity and high tonnage.

Description

The integrated distributed High Voltage forcing press of oil cylinder

The utility model relates to the hydraulic press technical field that is used for the article moulding.

The pressure source of the industrial large format large tonnage pressing machine of existing wood industry all is to be formed in parallel by separate oil hydraulic cylinder, every oil cylinder all has cylinder sleeve and the cylinder seat of himself, cylinder sleeve cylinder seat need be reserved the interface that links with working connection, so diameter of plunger is 400 millimeters a oil cylinder, its occupied press table top generally is not less than 600 * 600 (mm), the oil cylinder number of a press can adorn 8 at most, thereby limited the gross thrust that press can provide and the raising of pressure, build-up of pressure restriction.The second, the rack construction of existing press mainly is divided into frame-type and planer-type two big classes, and the former is square column and the crossbeam that is welded into by steel plate, and closed shape frame is welded; Steel plate is thick more, and the reliability of weldquality is low more, and therefore, raw-material intensity is difficult to give full play to.The latter opens a corresponding square hole in the middle of thickness is the integral plate of 50mm, common increase along with steel plate thickness, the also corresponding decline of its tensile strength, the square hole corner stress influence of concentrating in addition, stress distribution is difficult to evenly, so along with the increase of forcing press gross tonnage, the corresponding decline of the effective rate of utilization of steel plate, the crossbeam of integral plate top composition is difficult to obtain the cross section of best the moment of inertia in addition, so limited raw-material reasonable utilization, has caused the frame strength restriction.The 3rd, the load restriction that distributes: limit by the oil cylinder layout, the operating pressure from oil cylinder that the same cross section of press is born belongs to usually and is no more than 3 concentrated load.For the above-mentioned concentrated load of homogenizing, press must have base plate, top board and the middle holder of high rigidity, and this stress distribution has worsened the stress of frame-type and planer type structure more.Its weight is big, unreasonable structure.The 4th, the heating platen of existing wood industry press is all at the frame internal work.Loading and unloading blanket or change some technological parameters or flow process as reducing in short-term in same technology or the temperature of rising heating platen, restores or prolongs the dwell time etc., all can cause the cycle stretch-out that takies of press, has reduced the turnover utilization rate of machine, has improved cost.Therefore for the processing technology of some thick glued board or special glued board, a production cycle holding time of press is usually more than several hrs, add the lay day of raw material, the output of every workday is very limited, and the cost of natural products and price also are very expensive.

The purpose of this utility model provides the integrated distributed High Voltage forcing press of a kind of oil cylinder, and it has following characteristics: compact conformation, and volume is little, and is in light weight, and High Voltage, high tonnage can be provided, and applicability is strong, and is applied widely.Adopt load stress on it behind balance-type principal post group structure, can make its more compact structure; After adopting mobile hot pressing plate pressurize chassis, more make its applicability strong, improve its efficient.

The utility model is achieved in that the integrated distributed High Voltage forcing press of a kind of oil cylinder, it is characterized in that having the pressure-bearing framework, the pressure-bearing framework upper is provided with top board, the bottom is provided with base plate, the centre is that the pressure-bearing column connects, base plate top is provided with integrated distributed oil cylinder group, and is provided with hydraulic control device.Integrated distributed oil cylinder group has at least the even concentrated type of oil har opening horizontal plane more than 7 to be arranged in oil cylinder on the whole, and oil cylinder integral body is the monolithic construction that a block plate is processed with a plurality of oil har openings, is provided with the oil cylinder oil line pipe between each oil har opening.Its objective is the cumulative volume that reduces a plurality of independent oil cylinders, and improve the intensity and the stock utilization of oil cylinder, increase the piston gross area, produce High Voltage, high tonnage.

Above-mentioned oil har opening is arranged for the horizontal plane concentrated type, and cylinder diameter can be different, is preferably regularly and arranges; The diameter of best a plurality of oil har openings is all identical, and making a plurality of oil har openings is that the even concentrated type of horizontal plane is arranged, and stressedly evenly simplifies production process thereby make, and makes overall structure more reasonable.

Above-mentioned pressure-bearing framework can be common steel plate or section bar welded structure or planer type structure, and is in light weight for material-saving, makes holding capacity big and reasonable, between the top board and base plate of pressure-bearing framework, preferably is provided with the column (square column or cylinder etc.) more than 6 at least.

In order to make each column stress equalization, unlikelyly broken by each, and material-saving, at least one end of every root post is provided with load stress from equalizing structure.

Load stress from equalizing structure can be: at least one end of column is provided with strain and regulates neck, and the neck end is established a grade head, and column passes plate hole, and the opening that is provided with the band tapering between shelves head and plate is embraced holder, embraces the tight loop that is provided with outside holding in the palm with same tapering.Or after the retaining head of neck end passed plate hole, directly be welded on the first-class structure of top board or base plate.

Regulate the degree of tension of column for convenience, be preferably between retaining head and plate and be provided with impartial pulling force adjustment ring.Purpose is to carry out the pulling force coarse adjustment, and the variation in tension that produces between the course of work central post is by the fine setting of elasticity neck.

Above-mentioned column is preferably double, and double column can be symmetric arrays regularly, and every row's column spacing is equated, so that whole stressed more reasonable, every root post is stressed evenly.

In order to make this forcing press applicability strong, improve its efficient, when making hot press and use, can between the top board of pressure-bearing framework and base plate, be provided with mobile hot pressing plate pressurize chassis and middle holder, connect each piston rod below the middle holder, between middle holder and chassis base, be provided with the position differential gear.

Above-mentioned chassis structure is: on the chassis base wheel is housed, be provided with pressurize locking mechanism and heating platen between chassis base and top board, heating platen is connected with heating plant, as electrothermal or steam heater etc., the pressurize locking mechanism can be double-screw bolt, nut type, or is elevating screw formula etc.Chassis also can be other structures, is contained on the track as movable roll, and structure such as uneasy wheel-mounted is convenient to continuous productive process on the chassis.

The effect of above-mentioned position differential gear is after chassis arrives the operating position wheel not to be stressed, the power of middle holder directly is added on the car base, prevent from train is damaged, its structure is: be provided with guide rail and wheel dimple in middle holder, the dimple bottom is provided with buffer spring, holder plane during guide rail is lower than, dimple top guide rail and guide rail are whole to be disconnected.When vehicle arrives the dimple position, promptly sink, the holder plane contacts with the car base in making, and bears high pressure.

Characteristics of the present utility model are: since a cylinder body on the whole integrated form oil har opening concentrated type arrange, compact conformation, in light weight, material-saving, the intensity height, total piston area is big, under the constant situation of hydraulic system, can produce High Voltage, high tonnage.The pressure-bearing framework can make the pressure-bearing Frame Design reasonable after adopting column and load stress self-balancing structure, and is stressed big, in light weight, rational in infrastructure, is convenient to operation.Be added with mobile hot pressing plate pressurize chassis, more make it have applicability, be convenient to continuous productive process, improve its operating efficiency.The utility model applied range can be made cold press, stamping machine and use, and especially is fit to do significantly, the man-made board hot-pressing machine of High Voltage, high tonnage uses.Peculiar integrated hydraulic oil cylinder of this press and cellular structure principle can also be the load situation under large-scale hardware and concrete prefabricated member (for example bridge, shell structure etc.) the simulation user mode, carry out destructive testing and nondestructive test, also can be used as the tamping plant of large-scale hardware.

Be described further below in conjunction with embodiment and accompanying drawing, but not as to qualification of the present utility model.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the sealed arrangement schematic diagram of the integrated form oil har opening of monoblock type oil cylinder.

Fig. 3 is that the even concentrated type of the integrated form oil har opening of monoblock type oil cylinder is arranged schematic diagram.

Fig. 4 is that oil cylinder position non-dense set formula is arranged schematic diagram in the prior art.

Fig. 5 is that load stress is from the balance-type structural representation.

Among Fig. 1, the pressure-bearing framework is made of front and back two row's columns 6, top board 9 and base plate 1,2 is the integrated form cylinder body, 3 is middle holder, which is provided with track and 4 wheel dimples 11, and its bottom is provided with

spring

12,8,4 top board and the bases that are respectively mobile hot pressing plate pressurize chassis, be provided with pressurize lock(ing) bolt 7 therebetween and

nut

5,10 is a heating platen, chain type flexibly connects between each heating platen.

Among Fig. 2,13 is the oil cylinder integral body that a block plate is processed with porous, small oil tank hole 14, and large tank hole 15, the dense arrangement formula, 16 is oil-piping between oil cylinder.Total piston area is big, can produce High Voltage.

Among Fig. 3, the oil har opening equal diameters is arranged for the uniform concentrated type of horizontal plane, makes full use of cylinder block material and intensity, and it is more reasonable to design.

Among Fig. 4,17 is general independently cylinder body, and its arrangement is not tight, waste material and space.Total piston area is little, and the pressure of generation is little.

Among Fig. 5,6 regulate the column of neck 19 and retaining 18 for the band strain, and 20 for embracing holder, and retractable structure can insert from both sides, wears gradient outward, and with tight loop 21 wedgings that have same gradient, 9,1 is respectively the top board and the base plate of pressure-bearing framework again.The effect of impartial pulling force adjustable ring 22 is degrees of tension of coarse adjustment pull bar 6.

Work top with existing press 1500mm * 3000mm is an example, the hydraulic jack that diameter of plunger is 400mm is together with its cylinder sleeve, base, external pipe, institute takes up space and is about 600mm * 600mm, so can only arrange 8 oil cylinders on this table top, the total working face of its piston is 10048cm ², a large amount of in addition pipe joints causes the operating pressure of hydraulic pump to be typically chosen in 24MPa, so total work pressure of this press is 2400 tons.

The piston diameter that the present invention selects for use is 220mm, and " cylinder sleeve " wall thickness between adjacent pistons is 100mm, can arrange 54 pistons, and its area of always working is 20516.76cm ², external interface has only one (if augmented flow also available 3), and the oil pump operating pressure can be selected 30MPa for use, so the gross pressure that press can provide is 6155 tons.As if 130mm that work top is vertically extended, then can arrange 59 pistons, can provide total work pressure can reach 6725 tons, exceed 156% and 180% respectively than 2400 tons of persons.

Claims

1, the integrated distributed High Voltage forcing press of a kind of oil cylinder, it is characterized in that having the pressure-bearing framework, the pressure-bearing framework upper is provided with top board, the bottom is provided with base plate, the centre is that the pressure-bearing column connects, base plate top is provided with integrated distributed oil cylinder group, and be provided with hydraulic control device, integrated distributed oil cylinder group, having the oil har opening more than 7 at least is that the even concentrated type of horizontal plane is arranged in oil cylinder on the whole, oil cylinder integral body is the monolithic construction that a block plate is processed a plurality of oil har openings, is provided with the oil cylinder oil line pipe between each oil har opening.

2, forcing press according to claim 1 is characterized in that the oil har opening diameter is identical.

3, forcing press according to claim 1 is characterized in that the pressure-bearing framework has top board and base plate, is provided with the column more than 6 between two plates at least.

4, forcing press according to claim 3 is characterized in that at least one end of every root post is provided with load stress from equalizing structure.

5, forcing press according to claim 4, it is characterized in that described column load stress from equalizing structure is: at least one end of column is provided with strain and regulates neck, the neck end is established a grade head, column passes plate hole, the opening that is provided with the band tapering between shelves head and plate is embraced holder, embraces the tight loop that is provided with outside holding in the palm with same tapering.

6, forcing press according to claim 5 is characterized in that being provided with impartial pulling force adjustment ring between retaining head and plate.

7, forcing press according to claim 3 is characterized in that column is double, and every row's column spacing equates, is symmetric arrays.

8, according to claim 1,2,3,4,5,6 or 7 described forcing presses, it is characterized in that between the top board of pressure-bearing framework and base plate, being provided with mobile hot pressing plate pressurize chassis and middle holder, connect each piston rod below the middle holder, between middle holder and chassis base, be provided with the position differential gear.

9, forcing press according to claim 8, it is characterized in that the structure of mobile hot pressing plate pressurize chassis is: on the chassis base wheel is housed, is provided with pressurize locking mechanism and heating platen between chassis base and top board, heating platen is connected with heating plant.

10, forcing press according to claim 8 is characterized in that the differential apparatus structure in position is: be provided with guide rail and wheel dimple in middle holder, the dimple bottom is provided with buffer spring, holder plane during guide rail is lower than, and dimple top guide rail and guide rail are whole to be disconnected.