CN201931634U - Pre-tightening compound four-column structure frame of hydraulic press - Google Patents
Pre-tightening compound four-column structure frame of hydraulic press Download PDFInfo
- Publication number
- CN201931634U CN201931634U CN2010206292636U CN201020629263U CN201931634U CN 201931634 U CN201931634 U CN 201931634U CN 2010206292636 U CN2010206292636 U CN 2010206292636U CN 201020629263 U CN201020629263 U CN 201020629263U CN 201931634 U CN201931634 U CN 201931634U
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- pillars
- pull rod
- tightening
- hydraulic press
- bottom end
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Abstract
The utility model discloses a pre-tightening compound four-column structure frame of a hydraulic press, which comprises an upper crossbeam, four pillars, a bottom end rail and a pre-tightening pull rod.The upper crossbeam and the bottom end rail are fastened to the four pillars.Each pillar is equipped with a through hole along the axial direction thereof and a pre-tightening pull rod is arranged in the through hole of each of the pillars.The two ends of the pre-tightening pull rod are respectively extended to be the upper crossbeam and the bottom end rail, wherein blocking nuts are provided.According to the utility model, the upper crossbeam, the pillars and the bottom end rail are tightened and fixed by the pre-tightening pull rod passing therethrough.The upper crossbeam, the pillars and the bottom end rail are fixedly connected with each other into one piece by the pre-tightening pull rod, thereby improving the integral rigidity of the hydraulic press.No matter in a pre-tightening state or a work state, the pre-tightening pull rod only bears the tension and the pillars only bear the compressive stress, thereby improving the bearing status of the pre-tightening pull rod and effectively avoiding the breaking of the pre-tightening pull rod.Meanwhile, the stress variation amplitude of the pull rod is greatly reduced and the service life thereof is prolonged.The reliability and the service life of the hydraulic press are also improved.
Description
Technical field
The utility model relates to a kind of hydraulic press fuselage, and the full pretension of particularly a kind of hydraulic press makes up four rod structure fuselages.
Background technology
Along with the continuous progress of China's science and technology, the demand of heavy-duty machinery is also increasing, and the application of large-tonnage hydraulic press is also more and more, free-forging hydraulic especially, and tonnage rose to tons up to ten thousand by former several kilotons, and it is also more and more higher to forge the requirement of precision.Traditional integral frame structure, its advantage is: sound construction is reliable, and stable performance is easy for installation.But there is a very big difficult problem in the integral frame structure in processing, transportation and lifting.Integral frame structure one is to need large-sized processing equipment, the processing cost height, and the 2nd, can't transport factory building after producing, the 3rd, be subjected to overweight and super wide restriction in the transportation, the 4th, need large-scale lifting appliance, installation cost height during lifting.So must adopt combining structure.
At present, the fuselage of hydraulic press adopts four rod structures of half pretension usually, is being provided with the tension pull bar between entablature and the pillar and between pillar and sill, and the hydraulic press integral rigidity is not high; The additional bending moment that the moment of flexure that the tension pull bar not only will bear upper and lower crossbeam produces in the time of also will bearing the press unbalance loading, pull bar is easily broken.
Summary of the invention
The utility model provides the full pretension of a kind of hydraulic press that can improve integral rigidity, avoid pull bar to fracture to make up four rod structure fuselages for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: the full pretension of a kind of hydraulic press makes up four rod structure fuselages, comprise entablature, four pillars and sill, described entablature and sill are fastened on described four pillars, each is provided with described four pillars along its axial through hole at heart place therein, the pretension pull bar is installed in the through hole of every pillar, the two ends of described pretension pull bar are extended described entablature and sill respectively, and locking nut, described entablature be installed, four pillars and sill are strained affixed in aggregates by four described pretension pull bars.
Advantage and the good effect that the utlity model has are: entablature, pillar and sill are affixed by the pretension pull bar tension that runs through wherein, and the pretension pull bar is strained entablature, pillar and sill affixed in aggregates, has improved the integral rigidity of hydraulic press; No matter in pretension state or duty, the pretension pull bar only bears tension, and pillar only bears compression, improved the force-bearing situation of pretension pull bar, effectively avoid the accident that fractures of pretension pull bar, the bar stress amplitude of variation is reduced greatly, improved its service life; The reliability and the service life of hydraulic press have been improved.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, pretension pull bar, 2, entablature, 3, slide block, 4, pillar, 5, sill.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, the full pretension of a kind of hydraulic press makes up four rod structure fuselages, comprise entablature 2, four pillars 4, sill 5 and pretension pull bars 1, entablature 2 and sill 5 are fastened on four pillars 4, every pillar 4 is axially arranged with through hole along it in heart place therein, pretension pull bar 1 is installed in the through hole of every pillar 4, the two ends of pretension pull bar 1 are extended entablature 2 and sill 5 respectively, and locking nut is installed, entablature 2, four pillars 4 and sill 5 are affixed in aggregates by 1 tension of four pretension pull bars.Slide block 3 is installed on four pillars 4.
The last lower through-hole of relevant position is arranged on the lower through-hole on having around entablature 2 and the sill 5, every pillar 4, and every pretension pull bar 1 is applied in the through hole of correspondence on entablature 2, pillar 4, the sill 5, and lock with locknut at two ends.The pretension pull bar can carry out pretension by heating or the mode that adds hydraulic pressure pretension cylinder, does not have the slit between pillar and the lower and upper cross-member when size of pretightning force should guarantee that hydraulic press in working order, still is in the state of fitting tightly, and this moment, pillar still was stressed.Because of in this structure, no matter in pretension state or duty, pull bar only bears tension, and pillar only bears compression and avoids resolving the post accident fully, and the bar stress amplitude of variation is reduced greatly, has improved its service life.
Although in conjunction with the accompanying drawings preferred embodiment of the present utility model is described above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of forms, these all belong within the protection domain of the present utility model.
Claims (1)
1. the full pretension of hydraulic press makes up four rod structure fuselages, comprise entablature, four pillars and sill, described entablature and sill are fastened on described four pillars, it is characterized in that, each is provided with described four pillars along its axial through hole at heart place therein, the pretension pull bar is installed in the through hole of every pillar, the two ends of described pretension pull bar are extended described entablature and sill respectively, and locking nut is installed, described entablature, four pillars and sill are strained affixed in aggregates by four described pretension pull bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206292636U CN201931634U (en) | 2010-11-26 | 2010-11-26 | Pre-tightening compound four-column structure frame of hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206292636U CN201931634U (en) | 2010-11-26 | 2010-11-26 | Pre-tightening compound four-column structure frame of hydraulic press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201931634U true CN201931634U (en) | 2011-08-17 |
Family
ID=44443172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206292636U Expired - Fee Related CN201931634U (en) | 2010-11-26 | 2010-11-26 | Pre-tightening compound four-column structure frame of hydraulic press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201931634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114801302A (en) * | 2022-05-25 | 2022-07-29 | 华中科技大学 | Intelligent press machine with built-in deformation compensation module |
-
2010
- 2010-11-26 CN CN2010206292636U patent/CN201931634U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114801302A (en) * | 2022-05-25 | 2022-07-29 | 华中科技大学 | Intelligent press machine with built-in deformation compensation module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20131126 |