Rack of two-beam upward-pressing type hydraulic machine

Abstract

The utility model relates to a rack of a two-beam upward-pressing type hydraulic machine. A draw-bar box is arranged between a foundation and an upper beam of a hydraulic machine, the draw-bar box and the upper beam are fastened and connected through a draw-bar nut assembly, an embedded nut set and an assembly are arranged in a reinforced concrete foundation, and the upper beam, the draw-bar box and the reinforced concrete foundation are fastened and connected through a draw bar, a draw-bar upper nut set and the embedded nut set to form the frame-shaped prestress rack. And the frame-shaped prestress rack of the hydraulic machine without the lower beam is formed. The device has the advantages of unique design, reasonable structure, convenience in manufacturing, investment saving and the like.

Description

Technical Field

[0001] The utility model relates to a frame of a hydraulic press, in particular to a frame-type prestressed frame of a two-beam upper-pressing super-large hydraulic press, belonging to the technical field of large-scale mechanical design and manufacturing. Background Art

[0002] In a traditional three-beam hydraulic press, the upper end of the column is fixedly connected to the upper beam, and the lower end is fixedly connected to the lower beam. The upper beam, the lower beam and the column form a force frame. During the operation of the hydraulic press, the upper beam is subjected to upward extrusion, and the lower beam is subjected to downward extrusion. For an upward pressure hydraulic press, the upper beam transfers the upward reaction force of the hydraulic cylinder to the column, so the column is a key component that bears stress. As an ultra-large hydraulic press, it is very difficult to manufacture due to its extremely large weight and volume, especially the lower beam is extremely large, and the existing production equipment cannot process, manufacture, hoist, transport, install, or even implement it. For this reason, people designed the lower beam into a steel-concrete structure, replaced the lower beam with a steel-concrete structure foundation, and transformed the traditional metal-to-metal connection and fixation into a connection and fixation between metal components and reinforced concrete, which became a two-beam hydraulic press. Summary of the invention

[0003] In view of the problems existing in the background technology, the utility model proposes a frame of a two-beam upper pressure hydraulic press, in which a tie rod box is arranged between the foundation and the upper beam of the hydraulic press, which are fastened and connected by a tie rod nut assembly to form a hydraulic press frame-shaped prestressed frame without a lower beam.

[0004] In order to achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme: a frame of a two-beam upper pressure hydraulic press, including an upper beam, a tie rod assembly, a steel-concrete foundation, a hydraulic component and a lower anvil mold, wherein the tie rod assembly includes a tie rod, a tie rod upper nut and a tie rod box, and when the hydraulic press is working, the hydraulic component presses the upper beam upward, and the lower anvil mold presses the steel-concrete foundation downward, and is characterized in that:

[0005] A draw rod sleeve and a reinforcement plate are provided in the inner cavity of the draw rod box;

[0006] The reinforcing plate is fixedly connected to divide the inner cavity of the drawbar box into a plurality of channels, each drawbar sleeve is placed in a channel and is fixedly connected to the inner wall of the drawbar box and the reinforcing plate;

[0007] At least two embedded nut groups are provided in the steel-concrete foundation, and each embedded nut group is provided with at least two embedded bodies and a plurality of strong plates;

[0008] A connecting screw hole is arranged at the upper end of the embedded body, the connecting screw hole is screwed with the threaded teeth at the lower end of the pull rod, and the end surface of the connecting screw hole is fitted with the lower end surface of the pull rod sleeve;

[0009] The lower part of the embedded body is cast in reinforced concrete, and a plurality of anchor grooves are arranged on its outer edge. The anchor grooves are arranged in multiple layers and directions, and strong plates are embedded in the grooves.

[0010] The pull rods, the nuts on the pull rods and the connecting screw holes fasten the upper beams, the pull rod boxes and the steel-concrete foundation to form a frame-shaped prestressed frame.

[0011] Furthermore, the prestress of the frame-shaped prestressed frame is ≥ 1.3 times the upward extrusion force of the hydraulic component on the upper beam.

[0012] Furthermore, the strong plate is arranged between adjacent embedded nut groups, embedded in a plurality of anchor grooves, and connects adjacent embedded nut groups.

[0013] Furthermore, the anchor grooves are arranged in multiple directions and multiple layers.

[0014] The utility model uses a steel-concrete foundation to fix the upper beam and the drawbar box to form a frame-shaped prestressed frame, and sets a prestress of more than 1.3 times the maximum working pressure. A strong plate is set at the outer edge of the embedded body to ensure the tensile strength of the steel-concrete foundation and meet the strength requirements of the steel-concrete foundation.

[0015] The utility model has the advantages of unique design, reasonable structure, easy production and investment saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Attached Figure 2 For attachment Figure 1 Schematic diagram of the AA section structure;

[0018] Attached Figure 3 For attachment Figure 1 Enlarged view of the structure of part I.

[0019] In the attached drawings, 1 is a steel-concrete foundation, 2 is a movable beam, 3 is a tie rod sleeve, 4 is a tie rod, 4' is a nut group on the tie rod, 5 is an upper beam, 6 is a tie rod box body, 7 is a reinforcement plate, 8 is an embedded body, 9 is a strong plate, 401 is a connecting screw hole, and 801 is an anchor groove. DETAILED DESCRIPTION

[0020] Attached Figure 1 , 2 3 shows a two-beam four-column hydraulic press, in which the lower beam is replaced by a steel-concrete foundation 1, the upper beam 5 is arranged on a drawbar box body 6, fixed by a nut group 4' on the drawbar and the drawbar 4, the movable beam 2 is sleeved in the drawbar box body 6, and slides up and down along the drawbar box body 6.

[0021] Attached Figure 2As shown, the reinforcing plates 7 are cross-connected and fixed at 90 degrees to each other and are fixed to the suitcase body 6 , the outer wall of the tie rod sleeve 3 is fixed to the suitcase body 6 and the reinforcing plates 7 , and the tie rod 4 is placed in the tie rod sleeve 3 .

[0022] Attached Figure 3 As shown, a connecting bolt is provided at the lower end of the tie rod 4, which is screwed into the connecting screw hole 401 at the upper end of the embedded body 8, and the upper end surface of the connecting screw hole 401 is fitted with the lower end surface of the tie rod sleeve 3. The tie rod 4 is fixed and tightened with the steel-concrete foundation 1 through the embedded body 8, and the upper end surface of the connecting screw hole 401 is squeezed with the lower end surface of the tie rod sleeve 3.

[0023] The upper beam 5, the steel-concrete foundation 1 and the tie rod 4 are fixedly connected through the nut group 4' on the tie rod and the connecting screw hole 401 on the embedded body 8, and a prestress of ≥1.3 times the working pressure of the hydraulic press is set. The upper beam 5, the steel-concrete foundation 1, the tie rod 4, the nut group 4' on the tie rod and the connecting screw hole 401 on the embedded body 8 constitute a frame-shaped prestressed frame of the hydraulic press.

[0024] Attached Figure 1 As shown, a plurality of anchor grooves 801 are provided in the embedded body 8 and distributed at any position of the outer edge thereof, and a strong plate 9 is embedded in the anchor groove 801. The strong plate 9 is a strip-shaped steel plate, which is surrounded by the embedded body 8 and cast into a whole with the reinforced concrete, thereby increasing the bonding ability between the embedded body 8 and the reinforced concrete and improving the strength of the steel-concrete structure.

Claims

1. A frame of a two-beam upper pressure hydraulic press, comprising an upper beam, a tie rod assembly, a steel-concrete foundation, a hydraulic component and a lower anvil mold, wherein the tie rod assembly comprises a tie rod, a tie rod upper nut and a tie rod box. When the hydraulic press is working, the hydraulic component presses the upper beam upward, and the lower anvil mold presses the steel-concrete foundation downward, characterized in that: A draw rod sleeve and a reinforcement plate are provided in the inner cavity of the draw rod box; The reinforcing plate is fixedly connected to divide the inner cavity of the drawbar box into a plurality of channels, each drawbar sleeve is placed in a channel and is fixedly connected to the inner wall of the drawbar box and the reinforcing plate; At least two embedded nut groups are provided in the steel-concrete foundation, and each embedded nut group is provided with at least two embedded bodies and a plurality of strong plates; A connecting screw hole is arranged at the upper end of the embedded body, the connecting screw hole is screwed with the threaded teeth at the lower end of the pull rod, and the end surface of the connecting screw hole is fitted with the lower end surface of the pull rod sleeve; The lower part of the embedded body is cast in reinforced concrete, and a plurality of anchor grooves are arranged on its outer edge. The anchor grooves are arranged in multiple layers and directions, and strong plates are embedded in the grooves. The pull rods, the nuts on the pull rods and the connecting screw holes fasten the upper beams, the pull rod boxes and the steel-concrete foundation to form a frame-shaped prestressed frame.

2. The frame of the double-beam upward pressure hydraulic press according to claim 1 is characterized in that: The prestress of the frame-shaped prestressed frame is ≥ 1.3 times the upward extrusion force of the hydraulic component on the upper beam.

3. The frame of the double-beam upward pressure hydraulic press according to claim 1 is characterized in that: The strong plate is arranged between adjacent embedded nut groups, embedded in a plurality of anchor grooves, and connects adjacent embedded nut groups.

4. The frame of the double-beam upward pressure hydraulic press according to claim 1 is characterized in that: The anchor grooves are arranged in multiple directions and multiple layers.

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