CN2806120Y

CN2806120Y - Four-column type hydraulic press with high-strength steel wire winding pre-tightening frame

Info

Publication number: CN2806120Y
Application number: CN 200520026886
Authority: CN
Inventors: 朱勉学
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-29
Filing date: 2005-07-29
Publication date: 2006-08-16
Anticipated expiration: 2015-07-29

Abstract

The utility model is composed of an upper semi-circle beam, upright posts, an oil cylinder, a walking beam, a walking guide rail, fixing guide rails, an upper work table, a lower work table, fixing pins and a lower semi-circle beam which are connected. The utility model is characterized in that the upper and the lower semi-circle beams are respectively cast into a whole by the front and the back double semi-circle bodies and a connecting block arranged in the middle part to form a compound beam, the upper and the lower semi-circle beams are respectively fixed on the upper and the lower ends of the four upright posts by the fixing pins, and high-strength wires is used for winding to become a whole and form a steel wire layer to make the upper and the lower semi-circle beams and the upright posts in the prestressing state. The fixing guide rails are respectively and fixedly arranged on the upright posts correspondingly in parallel, the walking beam is connected with the walking guide rail and is in movable fit with the fixing guide rails up and down, the upper semi-circle beam is fixedly provided with the oil cylinder, the upper part of the walking beam is connected with a plunger of the oil cylinder by a screw rod, and the lower part of the walking beam and the upper part of the lower semi-circle beam are correspondingly provided with the upper and the lower work tables. The utility model has the advantages of simple structure, easy operation, reliable performance and low cost, the fatigue failure caused by the stress concentration of screw threads is avoided, the side of a hydraulic machine is made to form the operating space and the utility model is especially suitable for large work tables.

Description

The four-column type high-tensile steel wires twine the preloaded housing hydraulic press

Technical field

The utility model relates to a kind of hydraulic press, and particularly a kind of four-column type high-tensile steel wires twine the preloaded housing hydraulic press.

Background technology

At present, three beam four-column hydraulic presses of industry-by-industry widespread usage are normally supported and upper and lower beam are connected as one by four cylindrical screw rods.When hydraulic press was suppressed, four screw rods had both born the press power that is transmitted by upper and lower beam, the guiding when moving as moving beam again; Because press power is born by the screw thread at screw rod two ends fully, therefore concentrate because of the stress of screw thread inevitably and produce fatigue failure; Thereby cause the impaired of hydraulic press.There is the box-shaped hydraulic press the same again,, equally also exists stress to concentrate and the problem of generation fatigue failure also by the screw thread and the nut pretension of double-screw bolt with three beam four-column hydraulic presses.Adopt high-tensile steel wires to come the way of bearing load then to avoid the stress at screw thread-like position to concentrate fully, thereby have very high fatigue resistance by upper and lower beam of pretension and column.But because high-tensile steel wires can carry very big load,, be generally the twin columns structure, be applicable to the occasion that table top is less so the upper and lower beam of this hydraulic press is all narrow; For the bigger occasion of table top both consume material, increase cost, be not easy to operation again.

The utility model content

The purpose of this utility model is to overcome above-mentioned weak point, provide a kind of simple in structure, be convenient to operation, dependable performance, economical and practical four-column type high-tensile steel wires twine the preloaded housing hydraulic press.

The technical scheme that the utility model adopted is for achieving the above object: a kind of four-column type high-tensile steel wires twine the preloaded housing hydraulic press, by first circular beam, column, oil cylinder, moving beam, moving guide rail, decide guide rail, upper table, lower table, steady pin and second circular beam and connect and compose; It is characterized in that upper and lower semicircle beam forms combination beam by the two semicircular body in front and back with placing middle contiguous block cast solid respectively; And upper and lower semicircle beam is fixed in the upper/lower terminal of four root posts respectively by steady pin, and adopts high-tensile steel wires to twine to become one and form steel wire floor; Make upper and lower semicircle beam and column be in pre-stressed state; Decide the corresponding respectively secured in parallel of guide rail and be arranged on the column, moving beam connects moving guide rail and decides guide rail and slide up and down and cooperate; First circular beam is fixed with oil cylinder, and moving beam top is connected with the plunger of oil cylinder by screw rod, and moving beam bottom is connected with upper table, and second circular beam top is provided with the lower table corresponding with upper table.

The beneficial effects of the utility model are: this structure has avoided existing four-column hydraulic press to adopt the cylindrical screw load, causes fatigue failure owing to screw thread stress is concentrated.Its specific structure design makes the side of hydraulic press form certain operating space, thereby has opened up the approach that the steel wire-wound hydraulic machine is used for big table top, and the effective economical with materials of hydraulic press than common twin columns steel wire twines reduces cost.The utility model is simple in structure, be convenient to operation, dependable performance, economical and practical.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model structure schematic side view.

Among the figure: 1 first circular beam, 2 columns, 3 oil cylinders, 4 moving beams, 5 moving guide rails, 6 decide guide rail, 7 upper tables, 8 lower tables, 9 steel wire floors, 10 contiguous blocks, 11 steady pins, 12 second circular beams.

The specific embodiment

Below in conjunction with accompanying drawing and preferred embodiment, details are as follows to the specific embodiment, structure, feature that foundation the utility model provides:

As shown in Figure 1 and Figure 2, a kind of four-column type high-tensile steel wires twine the preloaded housing hydraulic press, by first circular beam 1, column 2, oil cylinder 3, moving beam 4, moving guide rail 5, decide guide rail 6, upper table 7, lower table 8, steady pin 11 and second circular beam 12 and connect and compose; It is characterized in that upper and lower semicircle beam 1,12 forms combination beam by forward and backward pair of semicircular body with placing middle contiguous block 10 cast solids respectively; And upper and lower semicircle beam 1,12 is fixed in the upper/lower terminal of four root posts 2 respectively by steady pin 11, and adopts high-tensile steel wires to twine to become one and form steel wire floor 9; Make upper and lower semicircle beam 1,12 and column 2 be in pre-stressed state; And prevent between upper and lower semicircle beam 1,12 and the column 2 displacement mutually.Decide the corresponding respectively secured in parallel of guide rail 6 and be arranged on the column 2, moving beam 4 connects moving guide rail 5 and decides guide rail 6 and slide up and down and cooperate; First circular beam 1 is fixed with oil cylinder 3, and moving beam 4 tops are connected by the plunger of screw rod with oil cylinder 3, moves beam 4 bottoms and is connected with upper table 7, and second circular beam 12 tops are provided with the lower table 8 corresponding with upper table 7.Four root posts 2 that are provided with can be rectangular cylinder.

It is as a whole that the combination beam that contrast prior art, the upper and lower semicircle beam 1,12 of this hydraulic press are two semicircular body and four cuboid columns 2 pass through the high-tensile steel wires pretension.The oil cylinder 3 that drives operation is fixed on first circular beam 1, and 4 on moving beam links to each other with oil cylinder 3, and moves up and down along the guide rail 6 of deciding on the column 2; Moving beam 4 and second circular beam 12 are respectively equipped with upper and lower workbench 7,8 being used to locate workpiece, and the upper and lower semicircle beam 1,12 of press power by combination born by high-tensile steel wires.The semicircular body outside of upper and lower semicircle beam 1,12 forms steel wire floor 9 for the high-tensile steel wires twisting surface, and its width is identical with column 2 width.This pair of semicircular body and contiguous block 10 combination beams cast in block, save material than single semicircle beam on the one hand, the upper and lower semicircle beam 1,12 that is provided with than no contiguous block 10 has stronger rigidity of support for upper and lower workbench 7,8 and oil cylinder 3 on the other hand, and is more reliable to ensure the hydraulic press overall performance.

The four-column type high-tensile steel wires twine preloaded housing hydraulic press operation principle: drive when oil cylinder 3 feeds oil, plunger on it promotes moving beam 4 connected moving guide rails 5 and moves downwards along the guide rail of being located on the column 26 of deciding together, contact with workpiece on placing lower table 8 and it is exerted pressure until the upper table 7 which is provided with, behind the hydraulic pressure workpiece deformation, moving just backhaul under the effect of oil cylinder 3 of beam 4.The power that upper table 7,8 pairs of workpiece of lower table are exerted pressure is sent on the steel wire floor 9 by first circular beam 1 and second circular beam 12, so steel wire floor 9 bears whole active forces.Though this moment, steel wire floor 9 had certain elongation, the deflection of column the slit can not occur greater than steel wire floor 9 elongation this moment so be connected closely between upper and lower semicircle beam 1,12 and the column 2 when compressor wire twines.

Also can make the high-tensile steel wires winding preloaded housing hydraulic press that six posts or other multicolumn constitute in the enforcement as required, range of application is very extensive.

Claims

1, a kind of four-column type high-tensile steel wires twine the preloaded housing hydraulic press, by first circular beam, column, oil cylinder, moving beam, moving guide rail, decide guide rail, upper table, lower table, steady pin and second circular beam and connect and compose; It is characterized in that upper and lower semicircle beam forms combination beam by the two semicircular body in front and back with placing middle contiguous block cast solid respectively; And upper and lower semicircle beam is fixed in the upper/lower terminal of four root posts respectively by steady pin, and adopts high-tensile steel wires to twine to become one and form steel wire floor; Make upper and lower semicircle beam and column be in pre-stressed state; Decide the corresponding respectively secured in parallel of guide rail and be arranged on the column, moving beam connects moving guide rail and decides guide rail and slide up and down and cooperate; First circular beam is fixed with oil cylinder, and moving beam top is connected with the plunger of oil cylinder by screw rod, and moving beam bottom is connected with upper table, and second circular beam top is provided with the lower table corresponding with upper table.