Upper beam assembly of ultra-large hydraulic machine

Abstract

The utility model relates to an upper beam assembly of an ultra-large hydraulic machine. An upper fixed beam of an ultra-large type hydraulic machine is very large in stress and must have large enough size and weight, the length of the upper beam of a press of more than ten thousand tons or even larger is more than ten meters, the weight of the upper beam of the press is thousands of tons, and existing production equipment cannot be machined, manufactured, hoisted and transported. In order to solve the problem that the whole upper beam of the ultra-large hydraulic machine is difficult to manufacture, a split manufacturing process is adopted, the upper beam is formed by compositing a plurality of stacked blocks, and the problem that an ultra-large (heavy) component cannot be manufactured by an existing industrial mother machine is solved. A plurality of hydraulic working oil cylinders are designed, so that stress borne by the upper beam is effectively dispersed, and the total height and the total weight of the upper beam are greatly reduced. The utility model has the advantages that the design is novel, the structure is reasonable, and the manufacturing cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to a hydraulic press component, in particular to an upper beam component of an ultra-large upper pressure type hydraulic press, and belongs to the technical field of mechanical design and manufacturing. Background Art

[0002] With the rapid development of social economy, the demand for super-large components is increasing. Hydraulic press is an industrial mother machine for producing large extrusions. Combined with the structure and working principle of hydraulic press, the main frame of hydraulic press is the key force-bearing component of the press, among which the upper fixed beam is the top priority, especially in super-large hydraulic press, the upper fixed beam is subjected to very large force, and must have a sufficiently large volume and weight. For example: the upper fixed beam of a free forging machine of more than 10,000 tons is more than 10 meters long, more than 5 meters high, and weighs about 1,000 tons. Such a huge machine is difficult to implement or even impossible to manufacture in terms of processing, manufacturing, lifting, transportation or installation, even if it costs a lot of money. The working cylinder of a traditional hydraulic press is generally set in the central area of ​​the upper fixed beam, which causes stress concentration on the upper fixed beam, and requires higher rigidity requirements for the upper beam, and the volume of the upper beam needs to be designed to be larger. Therefore, it is necessary to vigorously develop new technologies for the production of super-large components. Summary of the invention

[0003] In response to the problems raised in the background technology, the utility model proposes an upper beam assembly for an ultra-large hydraulic press, which arranges the upper beam into a stacked structure of blocks assembled in multiple directions, and uses hydraulic working cylinders as fasteners to achieve smooth production, transportation and installation of ultra-large components of the hydraulic press.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solution: an upper beam assembly of a super-large hydraulic press, comprising an upper beam, a working oil cylinder and a column, wherein the upper beam is fixed to the top of the column, and the working oil cylinder is arranged on the upper beam, characterized in that:

[0005] The upper beam is arranged in a stacked structure of a plurality of stacked blocks assembled in multiple directions, and the joints of the stacked blocks of two adjacent stacked layers are orthogonal to each other;

[0006] The upper beam is provided with working cylinder mounting holes, and the working cylinder mounting holes include a main cylinder mounting hole and a secondary cylinder mounting hole;

[0007] The main cylinder mounting hole is arranged in the central area of ​​the upper beam, and the auxiliary cylinder mounting holes are symmetrically arranged around the main cylinder mounting hole;

[0008] A clamping and fixing device is provided on the cylinder body of the working oil cylinder to fix the cylinder body in the mounting hole of the working oil cylinder and clamp the stacked structure.

[0009] Furthermore, the stacking blocks in the stacking layer are arranged into a plurality of coupled concave and convex shapes.

[0010] Furthermore, the upper beam heights of the main cylinder and the auxiliary cylinder are set to h, and the stress in the stress concentration area is set to a; only the upper beam height of the main cylinder is set to H, and the stress in the stress concentration area is set to A, then: h / H is 0.2~0.8, a / A is 0.1~0.7.

[0011] Furthermore, the stacked block is any one of a casting, a welded part, and an assembled part.

[0012] The utility model aims to solve the problem that the integral upper beam of an ultra-large hydraulic press is difficult to manufacture. The utility model adopts a split manufacturing process to solve the problem that ultra-large (heavy) components cannot be processed, manufactured, hoisted, transported, and installed. Multiple hydraulic working cylinders are designed to effectively disperse the stress borne by the upper beam, which can greatly reduce the total height and total weight of the upper beam and reduce the manufacturing difficulty. The cross-stacked design of the stacking blocks further reduces the weight of a single structural member, while greatly improving the strength and rigidity of the upper beam.

[0013] The utility model has the advantages of reasonable structure and greatly reduced manufacturing cost, and is particularly suitable for the manufacture of super-large parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0015] Attached Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0016] Attached Figure 3 For attachment Figure 1 Schematic diagram of the structure of the AA section;

[0017] Attached Figure 4 For attachment Figure 2 Schematic diagram of the structure of the BB composite section.

[0018] In the accompanying drawings, 1 is a lower stack, 101 is a first stacking block of the lower stacking, 102 is a second stacking block of the lower stacking, 103 is a third stacking block of the lower stacking, 2 is a middle stacking, 201 is a first stacking block of the middle stacking, 202 is a second stacking block of the middle stacking, 203 is a third stacking block of the middle stacking, 3 is an upper stacking, 301 is a first stacking block of the upper stacking, 302 is a second stacking block of the upper stacking, 303 is a third stacking block of the upper stacking, 4 is a secondary cylinder, 401 is a single output rod of the secondary cylinder, 402 is a fastening flange of the secondary cylinder, 403 is a fastening bolt of the secondary cylinder, 404 is a fastening nut of the secondary cylinder, 5 is a main cylinder, 501 is a plunger rod of the main cylinder, 502 is a fastening flange of the main cylinder, 503 is a fastening bolt of the main cylinder, and 504 is a fastening nut of the main cylinder. DETAILED DESCRIPTION

[0019] The utility model is further explained below in conjunction with the accompanying drawings:

[0020] The attached drawing shows an upper fixed beam formed by stacking three layers, wherein the upper layer has the same structure as the lower layer, and an embodiment in which there are 13 hydraulic working cylinders, including three main cylinders and ten auxiliary cylinders.

[0021] As attached Figure 1 , 3 As shown in Figures 4 and 5, the lower stack 1, the middle stack 2, and the upper stack 3 are stacked in sequence. The lower stack 1 is composed of the lower stack first block 101, the lower stack second block 102, and the lower stack third block 103; the middle stack 2 is composed of the middle stack first block 201, the middle stack second block 202, and the middle stack third block 203; the upper stack 3 is composed of the upper stack first block 301, the upper stack second block 302, and the upper stack third block 303; wherein the joints of the middle stack first block 201 and the middle stack second block 202, and the middle stack second block 202 and the middle stack third block 203 are arranged in a concave-convex shape, and the concave-convex shapes are coupled to each other.

[0022] As attached Figure 1 , 2 As shown in Figures 3, 4, the three layers are provided with mounting holes for hydraulic working cylinders, and the three master cylinder mounting holes are arranged in the middle of the layers, wherein the master cylinder mounting hole located in the center passes through the second stacking block 102 of the lower stacking layer, the second stacking block 202 of the middle stacking layer, and the second stacking block 302 of the upper stacking layer respectively, and the other master cylinder mounting holes pass through the second stacking block 102 of the lower stacking layer, the second stacking block 201 of the middle stacking layer, and the second stacking block 302 of the upper stacking layer respectively, and the remaining master cylinder mounting holes pass through the second stacking block 102 of the lower stacking layer, the second stacking block 203 of the middle stacking layer, and the second stacking block 302 of the upper stacking layer respectively. Ten auxiliary cylinders 4 are symmetrically distributed around the master cylinder 5 (positions are shown in the figure).

[0023] The cylinder bodies of the master cylinder 5 and the slave cylinder 4 pass through the mounting holes provided on the three-layer stack from bottom to top in sequence, and are fastened by the master cylinder fastening flange 502 and the slave cylinder fastening flange 402 and the fastening bolts 503 at the upper end of the master cylinder 5, the slave cylinder fastening bolts 403 at the upper end of the slave cylinder 4 and the master cylinder fastening nuts 504 and slave cylinder fastening nuts 404. While fixing the hydraulic working cylinder, the three-layer stack is fastened into an integral upper beam.

[0024] The utility model arranges the upper beam of the hydraulic press in layers, and disperses the main cylinder 5 and the auxiliary cylinder 4, so that the stress borne by the upper beam is effectively dispersed, the rigidity requirement is reduced, the volume is reduced, the weight is reduced, the cost is reduced, and smooth production is achieved.

Claims

1. An upper beam assembly of a super-large hydraulic press, comprising an upper beam, a working oil cylinder and a column, wherein the upper beam is fixed to the top of the column, and the working oil cylinder is arranged on the upper beam, characterized in that: The upper beam is arranged in a stacked structure of a plurality of stacked blocks assembled in multiple directions, and the joints of the stacked blocks of two adjacent stacked layers are orthogonal to each other; The upper beam is provided with working cylinder mounting holes, and the working cylinder mounting holes include a main cylinder mounting hole and a secondary cylinder mounting hole; The main cylinder mounting hole is arranged in the central area of ​​the upper beam, and the auxiliary cylinder mounting holes are symmetrically arranged around the main cylinder mounting hole; A clamping and fixing device is provided on the cylinder body of the working oil cylinder to fix the cylinder body in the mounting hole of the working oil cylinder and clamp the stacked structure.

2. The upper beam assembly of a super-large hydraulic press according to claim 1, characterized in that: The stacking blocks in the stacking layer are arranged into a plurality of coupled concave and convex shapes.

3. The upper beam assembly of a super-large hydraulic press according to claim 1, characterized in that: The upper beam heights of the main cylinder and the auxiliary cylinder are set to h, and the stress in the stress concentration area is set to a; if only the upper beam height of the main cylinder is set to H, and the stress in the stress concentration area is set to A, then: h / H is 0.2-0.8, and a / A is 0.1-0.

7.

4. The upper beam assembly of a super-large hydraulic press according to claim 1, characterized in that: The stacked blocks are any one of castings, welded parts and assembled parts.

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