CN102062129A - Hydraulic press and hydraulic press cylinder thereof - Google Patents
Hydraulic press and hydraulic press cylinder thereof Download PDFInfo
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- CN102062129A CN102062129A CN2010102276249A CN201010227624A CN102062129A CN 102062129 A CN102062129 A CN 102062129A CN 2010102276249 A CN2010102276249 A CN 2010102276249A CN 201010227624 A CN201010227624 A CN 201010227624A CN 102062129 A CN102062129 A CN 102062129A
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- hydraulic press
- plunger rod
- oil cylinder
- concave spherical
- press oil
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Abstract
The embodiment of the invention discloses a hydraulic press cylinder which comprises a cylinder body, wherein the tail end of the cylinder body is provided with an oil inlet flange; and a plunger rod capable of vertically sliding along the inner wall of the cylinder body is arranged, the tail end of the plunger rod is provided with a concave spherical pad and a convex spherical pad, the convex spherical pad is embedded in the concave spherical pad, and the plunger rod is fixed on a slide block of the hydraulic press cylinder. By using the technical scheme, since the tail end of the plunger rod is provided with the concave spherical pad and the convex spherical pad which are matched with each other in the embodiment of the invention, the concave spherical pad can deviate in the convex spherical pad when an offset load force is exerted on the slide block, so that the offset load force of the plunger rod acting on the cylinder can be counteracted, thereby reducing the damage caused by the offset load force to the cylinder and prolonging the service life of the cylinder. In addition, by adopting a split type design, the convex and concave spherical pads and the plunger rod are convenient to machine and can be directly mounted for use. The embodiment of the invention also provides a hydraulic press provided with the hydraulic press cylinder.
Description
Technical field
The present invention relates to the hydraulic press oil cylinder and make the field, more particularly, relate to the large hydraulic Oil cylinder.
Background technique
Hydraulic press be a kind of be working medium with liquid, be used for transmitting energy to realize polytechnic machine.Hydraulic press also can be used for correcting, press-fits, packing, briquetting and pressing plate etc. except that being used for excellent suitability for press forming.Hydraulic press comprises hydraulic press and oil hydraulic press.With the water fluid is the hydraulic press that is called of working medium, is the oil hydraulic press that is called of working medium with oil.The specification of hydraulic press is generally used nominal working force (thousand Ns) or nominal tonnage (ton) expression.Mostly forging is hydraulic press with hydraulic press, and tonnage is higher.For reducing equipment size, the large-sized forging hydraulic press is used higher pressure (about 35 MPas) always, also adopts the above ultrahigh pressure of 100 MPas sometimes.The general operating pressure that adopts 6～25 MPas of the hydraulic press of other purposes.
At present, known in the compacting of various large hydraulic press, during work because the shape difference of rolled-up stock, the very big offset loading force that can produce slide block, and the effect of offset loading force can cause very big infringement to oil cylinder, reduces the working life of complete machine.
Summary of the invention
In view of this, one aspect of the present invention provides a kind of hydraulic press oil cylinder, a kind of hydraulic press with this hydraulic press oil cylinder is provided on the other hand, by adopting this hydraulic press oil cylinder, can resist the offset loading force that slide block produces, thereby reduce the damage that offset loading force produces oil cylinder, prolong the working life of oil cylinder.
For achieving the above object, the invention provides following technological scheme:
A kind of hydraulic press oil cylinder comprises: cylinder body, and described cylinder body end is equipped with the oil-feed flange; The plunger rod that setting can slide up and down along inboard wall of cylinder block is equipped with concave spherical surface pad and protruding ball ring at described plunger rod end, and described protruding ball ring embeds described concave spherical surface pad, and described plunger rod is fixed on the slide block of described hydraulic press oil cylinder.
Preferably, in above-mentioned hydraulic press oil cylinder, described concave spherical surface pad is installed in described plunger rod end by screw.
Preferably, in above-mentioned hydraulic press oil cylinder, described plunger rod is installed on the described slide block by mounting flange.
Preferably, in above-mentioned hydraulic press oil cylinder, be installed on the described slide block by fastening screw trip bolt on the described mounting flange.
Preferably, in above-mentioned hydraulic press oil cylinder, the spring that changes along with described slide block pressure is installed between described screw and the mounting flange.
Preferably, in above-mentioned hydraulic press oil cylinder, described spring is a butterfly spring.
Preferably, in above-mentioned hydraulic press oil cylinder, also be provided with the guide sleeve that play the guiding role between described cylinder body and the described plunger rod.
Preferably, in above-mentioned hydraulic press oil cylinder, between described guide sleeve and described gland, also be provided with the seal ring that prevents draining.
Preferably, in above-mentioned hydraulic press oil cylinder, the dust ring of removing the dust on the plunger rod is installed on the described gland.
The embodiment of the invention also provides a kind of hydraulic press, above-mentioned hydraulic press oil cylinder.
From technique scheme as can be seen, in the embodiment of the invention owing to concave spherical surface pad and protruding ball ring are installed at the end of plunger rod, the concave spherical surface pad cooperates protruding ball ring, when slide block is subjected to offset loading force, the concave spherical surface pad will be offset in protruding ball ring, thereby can offset offset loading force, reduce because the damage that offset loading force causes oil cylinder, prolong oil cylinder working life oil cylinder.Convex-concave ball ring and plunger rod split-type design are easy to process in addition, directly install during use to get final product.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those skilled in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the hydraulic press oil cylinder in the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technological scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment who is obtained under the creative work prerequisite.
One aspect of the present invention provides a kind of hydraulic press oil cylinder, a kind of hydraulic press with this hydraulic press oil cylinder is provided on the other hand,, can resists the offset loading force that slide block produces oil cylinder by adopting this hydraulic press oil cylinder, thereby reduce the damage that offset loading force produces oil cylinder, prolong the working life of oil cylinder.
1-cylinder body, 2-plunger rod, 3-guide sleeve, 4-seal ring, 5-gland, 6-gland nut, 7-dust ring, 8-belleville spring, 9-set screw, 10-concave spherical surface pad, the protruding ball ring of 11-, 12-upper beam, 13-slide block.
A kind of hydraulic press oil cylinder as shown in Figure 1, comprising: cylinder body 1 and with plunger rod 2, plunger rod 2 is installed on the cylinder body 1, closely cooperate with cylinder body 1, and plunger rod 2 can move up and down along cylinder body 1 inwall.Described cylinder body end is equipped with: cylinder body 1 end is equipped with the oil-feed flange; Cylinder body 1 is installed the cylinder mouth gland 5, and gland 5 prevents that plunger rod 2 from coming off; At described plunger rod 2 ends concave spherical surface pad 10 and protruding ball ring 11 are installed, described protruding ball ring 11 embeds described concave spherical surface pad 10, and concave spherical surface pad 10 can slide on concave spherical surface pad 11, is similar to ball-joint.Plunger rod 2 is fixed on the slide block 13 of described hydraulic press oil cylinder.
By end concave spherical surface pad 10 and protruding ball ring 11 are set at plunger rod 2, when slider of hydraulic press is subjected to offset loading force, under the effect of concave spherical surface pad 10 and protruding ball ring 11, plunger rod can not deflect, just can adjust the loading angle of slider of hydraulic press, farthest balance is to the offset loading force offset loading force of oil cylinder generation.Be damaged probability thereby reduce owing to the hydraulic press oil cylinder is subjected to offset loading force, prolonged working life.
Concave spherical surface pad 10 is a split-type design with plunger rod 2 in embodiments of the present invention, so process more convenient, it is terminal just passable that directly processing place concave spherical surface pad 10 is directly installed on plunger rod 2, preferred in the present embodiment mounting type is installed in concave spherical surface pad 10 by screw the end of plunger rod 2, certainly the mounting type of not getting rid of other, for example welding.
In addition, in order to guarantee the perpendicularity of plunger rod, between cylinder body 1 and described plunger rod 2, also be provided with the guide sleeve 3 that play the guiding role.
Between described guide sleeve 3 and described gland 5, also be provided with the seal ring 4 that prevents draining.Guarantee that high pressure oil can not leak.Prolong the working life of oil cylinder.
The dust ring 7 of removing the dust on the described plunger rod is installed on the gland 5.
The embodiment of the invention also provides a kind of hydraulic press, comprises the hydraulic press oil cylinder.This hydraulic press oil cylinder comprises: cylinder body 1 and with plunger rod 2, plunger rod 2 is installed on the cylinder body 1, closely cooperate with cylinder body 1, and plunger rod 2 can move up and down along cylinder body 1 inwall.The cylinder mouth of cylinder body 1 is equipped with gland 5, and gland 5 prevents that plunger rod 2 from coming off; At described plunger rod 2 ends concave spherical surface pad 10 and protruding ball ring 11 are installed, described protruding ball ring 11 embeds described concave spherical surface pad 10, and concave spherical surface pad 10 can slide on concave spherical surface pad 11, is similar to ball-joint.Plunger rod 2 is fixed on the slide block 13 of described hydraulic press oil cylinder.
By end concave spherical surface pad 10 and protruding ball ring 11 are set at plunger rod 2, when slider of hydraulic press is subjected to offset loading force, under the effect of concave spherical surface pad 10 and protruding ball ring 11, plunger rod can not deflect, just can adjust the loading angle of slider of hydraulic press, farthest balance is to the offset loading force of oil cylinder generation.Be damaged probability thereby reduce owing to the hydraulic press oil cylinder is subjected to offset loading force, prolonged working life.
Concave spherical surface pad 10 is a split-type design with plunger rod 2 in embodiments of the present invention, so process more convenient, it is terminal just passable that directly processing place concave spherical surface pad 10 is directly installed on plunger rod 2, preferred in the present embodiment mounting type is installed in concave spherical surface pad 10 by screw the end of plunger rod 2, certainly the mounting type of not getting rid of other, for example welding.
In addition, in order to guarantee the perpendicularity of plunger rod, between cylinder body 1 and described plunger rod 2, also be provided with the guide sleeve 3 that play the guiding role.
Between described guide sleeve 3 and described gland 5, also be provided with the seal ring 4 that prevents draining.Guarantee that high pressure oil can not leak.Prolong the working life of oil cylinder.
The dust ring 7 of removing the dust on the described plunger rod is installed on the gland 5.
Because hydraulic press has a plurality of hydraulic jacks, can be fit to the hydraulic press of the big table top of large-tonnage, thereby strengthen whole anti-bias load ability.
From technique scheme as can be seen, in the embodiment of the invention owing to concave spherical surface pad and protruding ball ring are installed at the end of plunger rod, the concave spherical surface pad cooperates protruding ball ring, when slide block is subjected to offset loading force, plunger rod can not deflect, and just can adjust the loading angle of slider of hydraulic press, and farthest balance is to the offset loading force of oil cylinder generation, reduce because the damage that offset loading force causes oil cylinder, prolong oil cylinder working life.Concave spherical surface pad and plunger rod split-type design are easy to process in addition, directly install during use to get final product.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the present invention.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiments shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. hydraulic press oil cylinder comprises: cylinder body, and described cylinder body end is equipped with the oil-feed flange; The plunger rod that setting can slide up and down along inboard wall of cylinder block is characterized in that at described plunger rod end concave spherical surface pad and protruding ball ring are installed, described protruding ball ring embeds described concave spherical surface pad, and described plunger rod is fixed on the slide block of described hydraulic press oil cylinder.
2. hydraulic press oil cylinder according to claim 1 is characterized in that, described concave spherical surface pad is installed in described plunger rod end by screw.
3. hydraulic press oil cylinder according to claim 2 is characterized in that described plunger rod is installed on the described slide block by mounting flange.
4. hydraulic press oil cylinder according to claim 3 is characterized in that described mounting flange is installed on the described slide block by fastening screw trip bolt.
5. hydraulic press oil cylinder according to claim 4 is characterized in that, the spring that changes along with described slide block pressure is installed between described screw and the mounting flange.
6. hydraulic press oil cylinder according to claim 5 is characterized in that, described spring is a butterfly spring.
7. hydraulic press oil cylinder according to claim 6 is characterized in that, also is provided with guide sleeve between described cylinder body and the described plunger rod.
8. hydraulic press oil cylinder according to claim 7 is characterized in that, also is provided with the seal ring that prevents draining between described plunger rod and guide sleeve.
9. hydraulic press oil cylinder according to claim 8 is characterized in that, the dust ring of removing the dust on the plunger rod is installed on the described gland.
10. a hydraulic press comprises any described hydraulic press oil cylinder of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102276249A CN102062129A (en) | 2010-07-12 | 2010-07-12 | Hydraulic press and hydraulic press cylinder thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102276249A CN102062129A (en) | 2010-07-12 | 2010-07-12 | Hydraulic press and hydraulic press cylinder thereof |
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| CN102062129A true CN102062129A (en) | 2011-05-18 |
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| CN2010102276249A Pending CN102062129A (en) | 2010-07-12 | 2010-07-12 | Hydraulic press and hydraulic press cylinder thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507235A (en) * | 2011-10-21 | 2012-06-20 | 煤炭科学研究总院 | Test device for vertical imposed load of hydraulic support |
| CN113153730A (en) * | 2021-05-21 | 2021-07-23 | 张巧芬 | Energy dissipation assembly for avoiding failure of kinematic pair for maintenance of hydraulic plunger pump |
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|---|---|---|---|---|
| CN2121322U (en) * | 1992-01-16 | 1992-11-11 | 洛阳轴承厂 | Multi-position non-bias loading die forging hydraulic press |
| CN2256958Y (en) * | 1996-04-12 | 1997-06-25 | 黄勇 | Plunger-type locking oil cylinder |
| RU2162032C1 (en) * | 1999-05-18 | 2001-01-20 | Сибирский государственный индустриальный университет | Hydraulic press |
| EP1503087A2 (en) * | 2003-07-30 | 2005-02-02 | Theodor Gräbener GmbH & Co. KG | Cylinder unit for attachment to a traverse and/or a table of a device or machine for transforming workpieces |
| WO2007006557A1 (en) * | 2005-07-11 | 2007-01-18 | Laeis Gmbh | Plunger-cylinder assembly |
| CN200968413Y (en) * | 2006-08-31 | 2007-10-31 | 天津市天锻压力机有限公司 | Hydraulic-oil cylinder with integral structure of cylinder open and flange |
| CN101092981A (en) * | 2007-07-25 | 2007-12-26 | 天津市天锻压力机有限公司 | Anti partial loading oil cylinder in use for large size hydraulic machine |
| US7425123B2 (en) * | 2005-04-19 | 2008-09-16 | Krauss-Maffei Kunststofftechnik Gmbh | Hydraulic mold clamping unit |
| CN101450537A (en) * | 2008-12-26 | 2009-06-10 | 太原重工股份有限公司 | Connection device of vertical hydraulic press main plunger and pressure head |
| CN101733351A (en) * | 2008-10-12 | 2010-06-16 | 通裕重工股份有限公司 | 120MN free forging oil press |
-
2010
- 2010-07-12 CN CN2010102276249A patent/CN102062129A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2121322U (en) * | 1992-01-16 | 1992-11-11 | 洛阳轴承厂 | Multi-position non-bias loading die forging hydraulic press |
| CN2256958Y (en) * | 1996-04-12 | 1997-06-25 | 黄勇 | Plunger-type locking oil cylinder |
| RU2162032C1 (en) * | 1999-05-18 | 2001-01-20 | Сибирский государственный индустриальный университет | Hydraulic press |
| EP1503087A2 (en) * | 2003-07-30 | 2005-02-02 | Theodor Gräbener GmbH & Co. KG | Cylinder unit for attachment to a traverse and/or a table of a device or machine for transforming workpieces |
| US7425123B2 (en) * | 2005-04-19 | 2008-09-16 | Krauss-Maffei Kunststofftechnik Gmbh | Hydraulic mold clamping unit |
| WO2007006557A1 (en) * | 2005-07-11 | 2007-01-18 | Laeis Gmbh | Plunger-cylinder assembly |
| CN200968413Y (en) * | 2006-08-31 | 2007-10-31 | 天津市天锻压力机有限公司 | Hydraulic-oil cylinder with integral structure of cylinder open and flange |
| CN101092981A (en) * | 2007-07-25 | 2007-12-26 | 天津市天锻压力机有限公司 | Anti partial loading oil cylinder in use for large size hydraulic machine |
| CN101733351A (en) * | 2008-10-12 | 2010-06-16 | 通裕重工股份有限公司 | 120MN free forging oil press |
| CN101450537A (en) * | 2008-12-26 | 2009-06-10 | 太原重工股份有限公司 | Connection device of vertical hydraulic press main plunger and pressure head |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507235A (en) * | 2011-10-21 | 2012-06-20 | 煤炭科学研究总院 | Test device for vertical imposed load of hydraulic support |
| CN113153730A (en) * | 2021-05-21 | 2021-07-23 | 张巧芬 | Energy dissipation assembly for avoiding failure of kinematic pair for maintenance of hydraulic plunger pump |
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Application publication date: 20110518 |