CN102582100A - Unidirectional plunger type oil cylinder of hydraulic press - Google Patents

Unidirectional plunger type oil cylinder of hydraulic press Download PDF

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Publication number
CN102582100A
CN102582100A CN2012100367613A CN201210036761A CN102582100A CN 102582100 A CN102582100 A CN 102582100A CN 2012100367613 A CN2012100367613 A CN 2012100367613A CN 201210036761 A CN201210036761 A CN 201210036761A CN 102582100 A CN102582100 A CN 102582100A
Authority
CN
China
Prior art keywords
plunger rod
spherical
cylinder
flange
pad
Prior art date
Application number
CN2012100367613A
Other languages
Chinese (zh)
Inventor
罗丽丽
Original Assignee
天津市天锻压力机有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 天津市天锻压力机有限公司 filed Critical 天津市天锻压力机有限公司
Priority to CN2012100367613A priority Critical patent/CN102582100A/en
Publication of CN102582100A publication Critical patent/CN102582100A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06Platens or press rams
    • B30B15/068Drive connections, e.g. pivotal

Abstract

The invention relates to a unidirectional plunger type oil cylinder of a hydraulic press, which comprises a cylinder body, a plunger rod, a guide structure and a sealing element, wherein the guide structure and the sealing element are arranged between the cylinder body and the plunger rod, the unidirectional plunger type oil cylinder is characterized in that a cylindrical cavity is processed on the lower end of the plunger rod, a first spherical surface pad and a spherical surface column in spherical surface fit are arranged in the cylindrical cavity from the top down, the first spherical surface pad is fixedly installed on the plunger rod, the spherical surface column stretches out from the lower end of the plunger rod, a supporting sleeve fixedly installed on the lower end of the plunger rod is sleeved at the outside of the spherical surface column, a lug boss is processed at the outside of the lower end of the supporting sleeve, a bracket structure fixedly connected with a middle cross beam is erected on the lug boss, and an elastic pad is arranged between the bracket structure and the lug boss; and a second spherical surface pad fixedly connected with the middle cross beam is installed in the lower end of the supporting sleeve, the second spherical surface pad and the lower end of the spherical surface column are in spherical surface fit with each other. Under the partial load processing condition of the oil cylinder, the second spherical surface pad rotates along the matching surface of the spherical surface column and the spherical surface column rotates along the matching surface of the first spherical surface pad to prevent the plunger rod from deflecting along the axial line and enable the plunger rod to move linearly up and down, so as to reduce the strain damage on the cylinder body and the plunger rod.

Description

Hydraulic press is used unidirectional ram cylinder
Technical field
The present invention relates to hydraulic press and use driving oil cylinder, particularly hydraulic press is with unidirectional plunger rod oil cylinder.
Background technology
Unidirectional plunger rod-type oil cylinder is the normal middle cross beam Drive Structure that adopts on the hydraulic press.At present, the cylinder body of oil cylinder is installed in the entablature of hydraulic press, and the lower end of plunger rod and middle cross beam are the structure that is rigidly connected.Adopt this kind connected mode, when hydraulic press being used for unbalance loading processing operating mode, plunger rod is deflection vertically, makes plunger rod and inboard wall of cylinder block form local the contact, is prone to cause cylinder body and plunger rod to pull destruction.
Summary of the invention
The present invention pulls the hydraulic press of destruction and uses unidirectional ram cylinder for solving the technical problem that exists in the known technology and provide a kind of and be suitable for unbalance loading processing operating mode, reduce cylinder body and plunger rod.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
Hydraulic press is used unidirectional ram cylinder; Comprise the cylinder body that is installed in top beam of hydraulic machine, place the plunger rod in the cylinder body and be located at plunger rod and inboard wall of cylinder block between guide frame and seal; It is characterized in that: the lower end of said plunger rod is shaped on cylindrical cavity; From top to bottom be provided with in the said cylindrical cavity and form first ball ring and the sphere post that sphere cooperates, said first ball ring is packed in the bottom of cylindrical cavity, and said sphere post stretches out the plunger rod lower end; Its outer cover is equipped with the support set that is packed in the plunger rod lower end; The outside, lower end of said support set is shaped on lug boss, and said lug boss is put on the shelf the supporting structure that is connected with middle cross beam is housed, and is provided with cushion between said supporting structure and the lug boss; The inside, lower end of said support set is equipped with second ball ring that is connected with middle cross beam, and said second ball ring is that sphere cooperates with the lower end of sphere post.
The present invention can also adopt following technical scheme:
Said supporting structure by with first flange of intermediate transverse girder upper end welding, be located at second flange that first flange upper end is connected with it and and the flange cover that is connected of second flange constitute; The inner ring of said second flange compresses with the periphery of cushion mutually, and the lower end of said flange cover is pressed on the upper surface of cushion.
Said seal is a combination sealing.
Said guide frame is for being fastened on the first bronze medal guide pin bushing and the second bronze medal guide pin bushing on the inboard wall of cylinder block up and down respectively, and said combination sealing is pressed between the two bronze medal guide pin bushings.
Advantage and good effect that the present invention has are:
The oil cylinder of said structure is under the operating mode of unbalance loading processing; Rotate along the mating surface rotation of sphere post and the mating surface of sphere post edge first ball ring through second ball ring; Avoided plunger rod to deflect along axis; Guarantee to block bar along rectilinear motion up and down, thereby reduced cylinder body and plunger rod is pulled destruction.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the partial enlarged drawing of Fig. 1.
Among the figure: 1, entablature; 2, cylinder body; 3, plunger rod; 4, first ball ring; 5, sphere post; 6, support set; 6-1, lug boss; 7, supporting structure; 7-1, first flange; 7-2, second flange; 7-3, flange cover; 8, cushion; 9, second ball ring; 10, middle cross beam; 11, combination sealing; 12, the first bronze medal guide pin bushing; 13, the second bronze medal guide pin bushing; 14, supported flange.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1-2, hydraulic press is used unidirectional ram cylinder, comprise the cylinder body 2 that is installed in top beam of hydraulic machine 1, place the plunger rod 3 in the cylinder body and be located at plunger rod and inboard wall of cylinder block between guide frame and seal.The lower end of said plunger rod is shaped on cylindrical cavity, from top to bottom is provided with in the said cylindrical cavity to form first ball ring 4 and sphere post 5 that sphere cooperates, and said first ball ring is packed in the bottom of cylindrical cavity through screw.Said sphere post stretches out the plunger rod lower end, and its outer cover is equipped with the support set 6 that is packed in the plunger rod lower end through screw, and the outside, lower end of said support set is shaped on lug boss 6-1; Said lug boss is put on the shelf the supporting structure 7 that is connected with middle cross beam is housed; Be provided with cushion 8 between said supporting structure and the lug boss, cushion can be made by polyurethane rubber, and cushion can adopt common plain cushion structure; Also can adopt U type mat structure, specifically as shown in the figure.The inside, lower end of said support set is equipped with second ball ring 9 that is connected through screw and middle cross beam 10, and said second ball ring is that sphere cooperates with the lower end of sphere post.All need reserve the certain clearance amount between above-mentioned cylindrical cavity and the sphere post, between the endoporus of support set and the sphere post and between the lower surface of the joint face of first ball ring and middle cross beam and support set, the size of gap value is processed operating mode by concrete unbalance loading and is determined.
Above-mentioned supporting structure is supported on middle cross beam on the support set, forms a kind of free-standing connected mode between the two.When processing unbalance loading workpiece, second ball ring drives the mating surface rotation of middle cross beam along the sphere post, and middle cross beam drives supporting structure and rotates, supporting structure extruding cushion, and cushion generation strain has absorbed most active force.After middle cross beam and the disengaging of unbalance loading workpiece, under the resilient force of cushion, entire bracket structure, middle cross beam and second ball ring rotate and reset.Above-mentioned supporting structure can be further by with the first flange 7-1 of intermediate transverse girder upper end welding, be located at first flange upper end and constitute through flange cover 7-3 that screw is connected with its second flange 7-2 that is connected through screw and with second flange.The inner ring of said second flange compresses with the periphery of cushion mutually, and the lower end of said flange cover is pressed on the upper surface of cushion.
Above-mentioned hydraulic press is generally used for the hot-working operating mode, for avoiding the seal heat damage between plunger rod and the inboard wall of cylinder block, thereby causes the hydraulic press leakage of oil to stop production.In the present invention, seal further is preferably combination sealing 11, claims that also rubber adds the cloth sealing, and the heat resistanceheat resistant type and the intensity of this kind sealing all are higher than common sealing ring, such as y-type seal ring.Guide frame structure between above-mentioned plunger rod and the inboard wall of cylinder block can adopt the fairlead of cast iron quality or the guidance tape of outsourcing; In the present invention; Guide frame is preferably the first bronze medal guide pin bushing 12 and the second bronze medal guide pin bushing 13 that is fastened on up and down on the inboard wall of cylinder block; Said combination sealing is pressed between the two bronze medal guide pin bushings, and the lower end of second fairlead is provided with supported flange 14, and supported flange is packed in the lower end of cylinder body through screw.

Claims (4)

1. hydraulic press is used unidirectional ram cylinder; Comprise the cylinder body that is installed in top beam of hydraulic machine, place the plunger rod in the cylinder body and be located at plunger rod and inboard wall of cylinder block between guide frame and seal; It is characterized in that: the lower end of said plunger rod is shaped on cylindrical cavity; From top to bottom be provided with in the said cylindrical cavity and form first ball ring and the sphere post that sphere cooperates, said first ball ring is packed in the bottom of cylindrical cavity, and said sphere post stretches out the plunger rod lower end; Its outer cover is equipped with the support set that is packed in the plunger rod lower end; The outside, lower end of said support set is shaped on lug boss, and said lug boss is put on the shelf the supporting structure that is connected with middle cross beam is housed, and is provided with cushion between said supporting structure and the lug boss; The inside, lower end of said support set is equipped with second ball ring that is connected with middle cross beam, and said second ball ring is that sphere cooperates with the lower end of sphere post.
2. use unidirectional ram cylinder according to the said hydraulic press of claim 1; It is characterized in that: said supporting structure by with first flange of intermediate transverse girder upper end welding, be located at second flange that first flange upper end is connected with it and and the flange cover that is connected of second flange constitute; The inner ring of said second flange compresses with the periphery of cushion mutually, and the lower end of said flange cover is pressed on the upper surface of cushion.
3. use unidirectional ram cylinder according to claim 1 or 2 said hydraulic presses, it is characterized in that: said seal is a combination sealing.
4. use unidirectional ram cylinder according to the said hydraulic press of claim 3, it is characterized in that: said guide frame is for being fastened on the first bronze medal guide pin bushing and the second bronze medal guide pin bushing on the inboard wall of cylinder block up and down respectively, and said combination sealing is pressed between the two bronze medal guide pin bushings.
CN2012100367613A 2012-02-17 2012-02-17 Unidirectional plunger type oil cylinder of hydraulic press CN102582100A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012100367613A CN102582100A (en) 2012-02-17 2012-02-17 Unidirectional plunger type oil cylinder of hydraulic press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012100367613A CN102582100A (en) 2012-02-17 2012-02-17 Unidirectional plunger type oil cylinder of hydraulic press

Publications (1)

Publication Number Publication Date
CN102582100A true CN102582100A (en) 2012-07-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012100367613A CN102582100A (en) 2012-02-17 2012-02-17 Unidirectional plunger type oil cylinder of hydraulic press

Country Status (1)

Country Link
CN (1) CN102582100A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102886915A (en) * 2012-10-31 2013-01-23 南通皋液液压机有限公司 Guide pillar guiding structure of hydraulic press
CN103711744A (en) * 2013-12-31 2014-04-09 一重集团大连设计研究院有限公司 Horizontal split-structure large-stroke plunger cylinder
CN103883583A (en) * 2014-04-01 2014-06-25 太原重工股份有限公司 Vertical type hydraulic machine and return cylinder thereof
CN104295556A (en) * 2014-08-29 2015-01-21 合肥海德数控液压设备有限公司 Double-stroke hydraulic cylinder
CN104791324A (en) * 2015-04-16 2015-07-22 佛山市金凯地过滤设备有限公司 Presser two-level type oil cylinder device
CN106583617A (en) * 2016-12-27 2017-04-26 太原科技大学 Rapid forging press adopting dual floating hydraulic cylinder

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08197299A (en) * 1995-01-27 1996-08-06 Komatsu Ltd Spheric face point device of hydraulic press
CN2589183Y (en) * 2002-10-31 2003-12-03 天津市天锻压力机有限公司 Device for regulating the frame deflection master cylinder shift of edge coated hydraulic press
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
CN201090552Y (en) * 2007-07-25 2008-07-23 天津市天锻压力机有限公司 Large-scale hydraulic press sliding block drive oil cylinder
CN100585192C (en) * 2007-07-25 2010-01-27 天津市天锻压力机有限公司 Anti partial loading oil cylinder in use for large size hydraulic machine
CN102009484A (en) * 2010-09-28 2011-04-13 天津市天锻压力机有限公司 Hydraulic cylinder plunger installation structure for powder hydraulic press

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08197299A (en) * 1995-01-27 1996-08-06 Komatsu Ltd Spheric face point device of hydraulic press
CN2589183Y (en) * 2002-10-31 2003-12-03 天津市天锻压力机有限公司 Device for regulating the frame deflection master cylinder shift of edge coated hydraulic press
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
CN201090552Y (en) * 2007-07-25 2008-07-23 天津市天锻压力机有限公司 Large-scale hydraulic press sliding block drive oil cylinder
CN100585192C (en) * 2007-07-25 2010-01-27 天津市天锻压力机有限公司 Anti partial loading oil cylinder in use for large size hydraulic machine
CN102009484A (en) * 2010-09-28 2011-04-13 天津市天锻压力机有限公司 Hydraulic cylinder plunger installation structure for powder hydraulic press

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102886915A (en) * 2012-10-31 2013-01-23 南通皋液液压机有限公司 Guide pillar guiding structure of hydraulic press
CN103711744A (en) * 2013-12-31 2014-04-09 一重集团大连设计研究院有限公司 Horizontal split-structure large-stroke plunger cylinder
CN103883583A (en) * 2014-04-01 2014-06-25 太原重工股份有限公司 Vertical type hydraulic machine and return cylinder thereof
CN104295556A (en) * 2014-08-29 2015-01-21 合肥海德数控液压设备有限公司 Double-stroke hydraulic cylinder
CN104791324A (en) * 2015-04-16 2015-07-22 佛山市金凯地过滤设备有限公司 Presser two-level type oil cylinder device
CN106583617A (en) * 2016-12-27 2017-04-26 太原科技大学 Rapid forging press adopting dual floating hydraulic cylinder

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Application publication date: 20120718