CN104476791B - Double-rod horizontal hydraulic machine - Google Patents
Double-rod horizontal hydraulic machine Download PDFInfo
- Publication number
- CN104476791B CN104476791B CN201410742722.4A CN201410742722A CN104476791B CN 104476791 B CN104476791 B CN 104476791B CN 201410742722 A CN201410742722 A CN 201410742722A CN 104476791 B CN104476791 B CN 104476791B
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- China
- Prior art keywords
- hydraulic
- coil
- contactor
- pipeline
- pull rod
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/04—Frames; Guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
- B30B15/166—Electrical control arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Disclosed is a double-rod horizontal hydraulic machine which comprises a base, a hydraulic cylinder and a hydraulic control mechanism. A rear support and a front support are arranged on the base along the length direction at an interval, a rail is arranged between the rear support and the front support, a moving support with a walking wheel is arranged on the rail, a through hole is formed in each of the upper portion and the lower portion of each support, the supports are connected with one another through a front pull rod and a rear pull rod which are provided with segmental shaft shoulders, an inserting plate for positioning and adjusting is arranged on the pull rods, the moving support is fixed by the inserting plate, a pull rod locking nut is penetratingly arranged at the outer end of the front pull rod of the front support, the hydraulic cylinder is horizontally arranged in the middle of the front support, a piston rod of the hydraulic cylinder is arranged in a direction opposite to the moving support, a replaceable pressing head is arranged at the end of the piston rod, the hydraulic control mechanism is arranged on the base on the front side of the front support and comprises an oil tank, a hydraulic pump connected with the oil tank, a motor driving the hydraulic pump, an oil incoming pipeline, an oil returning pipeline and corresponding control valve groups, and the oil incoming pipeline and the oil returning pipeline are connected with the oil tank and the hydraulic cylinder respectively.
Description
Technical field
The present invention relates to hydraulic test, particularly to a kind of double rod type horizontal hydraulic machine.
Background technology
Hydraulic press technology adopts vertical structure mostly, in the majority with four-post frame rack and panel construction.Do not set mobile support saddle.General only have
Upper spider and lower rack structure, are fixed structure, upper spider fixative cylinder pressure, lower bearing bracket arranges workpiece.To heavy, major axis
Workpiece have significant limitation, and because equipment is to be arranged vertically, workpiece to be added and oil cylinder perpendicular concentric line arrangement, inconvenience
In lifting.
Content of the invention
It is an object of the invention to a kind of design horizontal horizontal press of double rod type, it is mainly used in needing crane coordinating operation
Macrotype axes series parts press-loading process, it is possible to use the horizontal range between two pull bars hang in from top to bottom press-fit part make
Industry.
For reaching above-mentioned purpose, the technical scheme is that
A kind of duplex pull rod horizontal hydraulic machine, it includes, base, thereon interval setting rear support, front bearing along its length,
Afterwards, between front bearing, track is set, track is provided with the mobile support saddle of road wheel；Described three bearings are respectively provided with up and down
One through hole, and be connected with each other by the forward and backward pull bar with the segmentation shaft shoulder, pull bar sets the plate that position is adjusted, and solid with this
Determine mobile support saddle；The front tension bar outer end being arranged in front bearing sets draw lever locking nut；Hydraulic cylinder, is horizontally placed on described front
In the middle part of seat, its piston rod relative movement bearing direction is arranged；Piston rod end sets replaceable pressure head；Hydraulic control, setting
On the base of described front support outer, including, fuel tank, the hydraulic pump being connected with fuel tank, drive the motor of hydraulic pump, connect respectively
Connected tank, the inflow pipeline of hydraulic cylinder, oil returning tube and corresponding control valve group；Electric motor starting control loop and motor master return
Road；Wherein, electric motor starting control loop includes fuse 4rd, the 5rd connecting 380v quarter-phase circuit respectively, is arranged at a phase and returns
The stop button 1ta on road, is arranged at the normally-closed contact of a thermorelay rj in another phase loop；It is connected in parallel in this quarter-phase circuit
A.C. contactor 1c～3c coil, start button 1qa connected with A.C. contactor 1c coil, with A.C. contactor 1c's
The coil of time relay sj of normally opened contact series connection and the normally-closed contact of A.C. contactor 3c, two contacts of time relay sj
Sj1, sj2 are connected in series in the coil circuit of A.C. contactor 2c and 3c respectively, and the normally-closed contact of A.C. contactor 3c is gone here and there respectively
It is coupled in the coil circuit of A.C. contactor 2c, the normally-closed contact of A.C. contactor 2c is series at the line of A.C. contactor 3c respectively
In circle circuit；Fuse 1rd, 2rd, 3rd that motor main circuit includes connecting respectively in motor three-phase power loop connect with exchanging
The normally opened contact of tentaculum 1c～3c, the coil of described thermorelay rj is series in motor three-phase power loop.
Further, described forward and backward pull bar is respectively two pull bars carrying the segmentation shaft shoulder, and by nut connection
Become.
Also, in described hydraulic control, the rod chamber of hydraulic cylinder and rodless cavity are connected to one by pipeline respectively
3-position 4-way electro-hydraulic reversing valve；Wherein, the inlet ductwork of rod chamber sets an one-way throttle valve；The electro-hydraulic commutation of described 3-position 4-way
Two ports of valve connect inflow pipeline, oil returning tube respectively；In inflow pipeline from fuel tank be sequentially provided with oil filter, stop valve,
Check valve；Oil filter and the check valve being arranged in parallel therewith in oil returning tube.
Further, the present invention also sets electromagnetic relief valve, and its entrance point is connected to check valve in described inflow pipeline
Export pipeline, its port of export is connected to the inlet ductwork of oil filter in described oil returning tube.
Preferably, described fuel tank is open type oil tank.
In addition, described hydraulic pump outlet, hydraulic cylinder import, hydraulic cylinder export pipeline respectively configure a pressure gauge and corresponding
Switch.
Preferably, also include control valve group control loop, it include connecting respectively the fuse 6rd of 220v quarter-phase circuit,
7rd, is disposed therein the stop button 2ta in a phase loop, hydraulic cylinder forwarding button 2qa, hydraulic cylinder back 3qa, three
Auxiliary reclay 1zj～3zj, two stop button 1xk, 2xk, electro connecting pressure gauge yj, three electromagnetic valve 1dt～3dt；Wherein,
Hydraulic cylinder forwarding button 2qa, the normally-closed contact of auxiliary reclay 2zj, stop button 1xk, the coil series connection of auxiliary reclay 1zj
It is connected in parallel in described 220v quarter-phase circuit after connection；Hydraulic cylinder back 3qa, the normally-closed contact of auxiliary reclay 1zj, stop
Only it is connected in parallel in described 220v quarter-phase circuit after the coil series connection of button 2xk, auxiliary reclay 2zj；Auxiliary reclay 1zj,
It is connected in parallel in described 220v quarter-phase circuit after being connected in series with electromagnetic valve 1dt after the normally opened contact parallel connection of 2zj；Electromagnetic valve 2dt,
3dt is parallel to the coil two ends of auxiliary reclay 1zj, 2zj respectively；Electro connecting pressure gauge yj, the coil string of auxiliary reclay 3zj
It is connected to described 220v quarter-phase circuit after connection.
Preferably, the control loop of described control valve group also includes electric bell dl and stop button 3ta, and electric bell dl is parallel to
The coil of auxiliary reclay 3zj, stop button 3ta is series in the loop of electro connecting pressure gauge yj.
The present invention adopts three abutments structure, and intermediate support can laterally adjust position, hydraulic cylinder water according to the length of workpiece
Plain cloth is put.Former and later two bearings are fixed on base, and road wheel is installed in intermediate support bottom, can rail on being installed on base
Road moves left and right, and bearing respectively has the through hole of two installation pull bars in front and back, the subsection setup shaft shoulder on pull bar, according to parts to be pressed
Length moves intermediate support, and on the pull bar shaft shoulder, insertion plate is used for fixing intermediate support, the locking of bearing upper connecting rod before dependence
Nut, pull bar can bear whole pressure during compressor operation.For ease of machining, every pull bar adopts pull-rod nut to couple.
Crane can be equipped with above press, using two pull bars between level interval lifting workpiece.According to parts axle to be processed
The size at end, the pressure head of press is replaceable.Special hydraulic manifold block is set hydraulic valve is installed, be provided with that 3-position 4-way is electro-hydraulic to be changed
To valve, electromagnetic relief valve, one-way throttle valve, check valve.
Beneficial effects of the present invention:
1. it is provided with the mobile support saddle of orbital motion, the length according to press-fiting part can be with flexible distance.
2. whole machine adopts horizontal type structure, functions more easily as the lifting operation of heavy-duty machine than traditional vertical structure.
Brief description
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the right view of Fig. 1.
Fig. 4 is the hydraulic schematic diagram of the embodiment of the present invention.
Fig. 5 is the schematic diagram of motor control loop and motor main circuit in the embodiment of the present invention.
Fig. 6 is the schematic diagram of the control loop of control valve group in the embodiment of the present invention.
Specific embodiment
Referring to Fig. 1～Fig. 4, a kind of duplex pull rod horizontal hydraulic machine of the present invention, it includes, base 1, thereon along its length
Interval setting rear support 12, front bearing 11, afterwards, arrange track 13 between front bearing 11,12, track 13 are provided with road wheel
Mobile support saddle 14；Described three bearings are respectively provided with a through hole up and down, and by the forward and backward pull bar 15 with the segmentation shaft shoulder,
16 are connected with each other, and forward and backward pull bar 15,16 sets the plate 17 that position is adjusted, and fixes mobile support saddle 14 with this；Prop up before being arranged in
Front tension bar 15 outer end of seat 11 sets draw lever locking nut 18；Hydraulic cylinder 2, is horizontally placed in the middle part of described front bearing 11, its work
Stopper rod relative movement bearing 14 direction is arranged；Piston rod end sets replaceable pressure head 3；Hydraulic control 4, be arranged at described before
On the base in bearing 11 outside, including, fuel tank 41, the hydraulic pump 42 being connected with fuel tank 41, drive the motor 43 of hydraulic pump 42, point
Lian Jie not fuel tank 41, the inflow pipeline 100 of hydraulic cylinder 2, oil returning tube 200 and corresponding control valve group.
Further, described forward and backward pull bar 15,16 is respectively two pull bars carrying the segmentation shaft shoulder, and passes through nut 19
Connection forms.
Also, in described hydraulic control 4, the rod chamber of hydraulic cylinder 2 and rodless cavity are connected to one by pipeline respectively
Individual 3-position 4-way electro-hydraulic reversing valve 44；Wherein, the inlet ductwork of rod chamber sets an one-way throttle valve 45；Described 3-position 4-way electricity
Two ports of liquid reversal valve 44 connect inflow pipeline 100, oil returning tube 200 respectively；In inflow pipeline 100 from fuel tank 41 successively
It is provided with oil filter 46, stop valve 47, check valve 48；Oil filter 46 ' and the check valve being arranged in parallel therewith is set in oil returning tube 200
48’.
Further, also set electromagnetic relief valve 49, its entrance point is connected to check valve 48 in described inflow pipeline 100
Export pipeline, its port of export is connected to the inlet ductwork of oil filter 46 ' in described oil returning tube 200.
Preferably, described fuel tank 41 is open type oil tank.
In addition, described hydraulic pump 42 exports, hydraulic cylinder 2 import, hydraulic cylinder 2 export pipeline respectively configure a pressure gauge p1
～p3 and corresponding switch.
Referring to Fig. 5, Fig. 6, the electric motor starting control loop of motor of the present invention and motor main circuit；Wherein, motor rises
Dynamic control loop includes fuse 4rd, the 5rd connecting 380v quarter-phase circuit respectively, is arranged at the stop button in a phase loop
1ta, is arranged at the normally-closed contact of a thermorelay rj in another phase loop；It is connected in parallel in the A.C. contactor of this quarter-phase circuit
The coil of 1c～3c, start button 1qa connected with A.C. contactor 1c coil, connect with the normally opened contact of A.C. contactor 1c
The coil of time relay sj and A.C. contactor 3c normally-closed contact, two contact sj1, sj2 of time relay sj are respectively
It is connected in series in the coil circuit of A.C. contactor 2c and 3c, the normally-closed contact of A.C. contactor 3c, 2c is series at exchange respectively
In the coil circuit of catalyst 2c and 3c；Motor main circuit include connecting respectively fuse 1rd in motor three-phase power loop,
2rd, 3rd and the normally opened contact of A.C. contactor 1c～3c, the coil of described thermorelay rj is series at motor three-phase power and returns
Lu Zhong.
Preferably, also include control valve group control loop, it include connecting respectively the fuse 6rd of 220v quarter-phase circuit,
7rd, is disposed therein the stop button 2ta in a phase loop, hydraulic cylinder forwarding button 2qa, hydraulic cylinder back 3qa, three
Auxiliary reclay 1zj～3zj, two stop button 1xk, 2xk, electro connecting pressure gauge yj, three electromagnetic valve 1dt～3dt；Wherein,
Hydraulic cylinder forwarding button 2qa, the normally-closed contact of auxiliary reclay 2zj, stop button 1xk, the coil series connection of auxiliary reclay 1zj
It is connected in parallel in described 220v quarter-phase circuit after connection；Hydraulic cylinder back 3qa, the normally-closed contact of auxiliary reclay 1zj, stop
Only it is connected in parallel in described 220v quarter-phase circuit after the coil series connection of button 2xk, auxiliary reclay 2zj；Auxiliary reclay 1zj,
It is connected in parallel in described 220v after being connected in series with electromagnetic valve 1dt (corresponding electromagnetic relief valve 49) after the normally opened contact parallel connection of 2zj
Quarter-phase circuit；Electromagnetic valve 2dt, 3dt are parallel to the coil two ends of auxiliary reclay 1zj, 2zj respectively；Electro connecting pressure gauge yj is (right
Answer pressure gauge p1), be connected to described 220v quarter-phase circuit after the series connection of the coil of auxiliary reclay 3zj.
Preferably, the control loop of described control valve group also includes electric bell dl and stop button 3ta, and electric bell dl is parallel to
The coil of auxiliary reclay 3zj, stop button 3ta is series in the loop of electro connecting pressure gauge yj.
The work process of the present invention is as follows:
Hang in from top with crane and press-fit part；Axial length according to press-fiting part adjusts the position of mobile support saddle,
Take off the plate 17 that positioning is adjusted, promote mobile support saddle 14 to put plate 17 again to suitable position, the side of part will be press-fited
It is adjacent to mobile support saddle；Start motor 43, press hydraulic cylinder piston forwarding button, pressure head 3 press-fits forward part；Press-fit end to retreat
Return hydraulic cylinder, complete one and press-fit operation.
Claims (8)
1. a kind of duplex pull rod horizontal hydraulic machine it is characterised in that include,
Base, interval setting rear support, front bearing along its length thereon, afterwards, track is set between front bearing, track is arranged
Mobile support saddle with road wheel；Described three bearings are respectively provided with a through hole up and down, and by forward and backward with the segmentation shaft shoulder
Pull bar is connected with each other, and pull bar sets the plate that position is adjusted, and fixes mobile support saddle with this；It is arranged in outside the front tension bar of front bearing
End sets draw lever locking nut；
Hydraulic cylinder, is horizontally placed in the middle part of described front bearing, and its piston rod relative movement bearing direction is arranged；Piston rod end sets
Replaceable pressure head；
Hydraulic control, is arranged on the base of described front support outer, including, fuel tank, the hydraulic pump being connected with fuel tank, is driven
The motor of hydrodynamic press pump, connects fuel tank, the inflow pipeline of hydraulic cylinder, oil returning tube and corresponding control valve group respectively；
Electric motor starting control loop and motor main circuit；Wherein, electric motor starting control loop includes connecting 380v two-phase power respectively
Fuse 4rd, the 5rd on road, is arranged at the stop button 1ta in a phase loop, is arranged at a thermorelay rj in another phase loop
Normally-closed contact；It is connected in parallel in the coil of the A.C. contactor 1c～3c of this quarter-phase circuit, with A.C. contactor 1c coil string
Start button 1qa, the coil of time relay sj connected with the normally opened contact of A.C. contactor 1c and the A.C. contactor of connection
The normally-closed contact of 3c, two contact sj1, sj2 of time relay sj are connected in series in the coil of A.C. contactor 2c and 3c respectively
Circuit, the normally-closed contact of A.C. contactor 3c is series in the coil circuit of A.C. contactor 2c, and A.C. contactor 2c's is normally closed
Contact series are in the coil circuit of A.C. contactor 3c；Motor main circuit includes connecting respectively in motor three-phase power loop
Fuse 1rd, 2rd, 3rd and the normally opened contact of A.C. contactor 1c～3c, the coil of described thermorelay rj is series at motor
In three phase mains loop.
2. duplex pull rod horizontal hydraulic machine as claimed in claim 1 is it is characterised in that described forward and backward pull bar is respectively two
Pull bar with the segmentation shaft shoulder, and formed by nut connection.
3. duplex pull rod horizontal hydraulic machine as claimed in claim 1 is it is characterised in that in described hydraulic control, hydraulic pressure
The rod chamber of cylinder and rodless cavity are connected to a 3-position 4-way electro-hydraulic reversing valve by pipeline respectively；Wherein, the import of rod chamber
Pipeline sets an one-way throttle valve；Two ports of described 3-position 4-way electro-hydraulic reversing valve connect inflow pipeline, oil return pipe respectively
Road；It is sequentially provided with oil filter, stop valve, check valve from fuel tank in inflow pipeline；In oil returning tube oil filter and therewith parallel connection set
The check valve put.
4., it is characterised in that also setting electromagnetic relief valve, its entrance point is even for duplex pull rod horizontal hydraulic machine as claimed in claim 3
It is connected to the export pipeline of check valve in described inflow pipeline, its port of export is connected to entering of oil filter in described oil returning tube
Mouth pipeline.
5. the duplex pull rod horizontal hydraulic machine as described in claim 1 or 3 is it is characterised in that described fuel tank is open type oil tank.
6. duplex pull rod horizontal hydraulic machine as claimed in claim 1 is it is characterised in that described hydraulic pump outlet pipeline, hydraulic pressure
Cylinder inlet ductwork, hydraulic cylinder export pipeline respectively configure a pressure gauge and corresponding switch.
7. duplex pull rod horizontal hydraulic machine as claimed in claim 1 is it is characterised in that also include control valve group control loop, its
Including fuse 6rd, 7rd of connecting 220v quarter-phase circuit respectively, it is disposed therein the stop button 2ta in a phase loop, hydraulic pressure
Cylinder forwarding button 2qa, hydraulic cylinder back 3qa, three auxiliary reclay 1zj～3zj, two stop button 1xk, 2xk, electricity connects
Point pressure table yj, three electromagnetic valve 1dt～3dt；Wherein, hydraulic cylinder forwarding button 2qa, the normally-closed contact of auxiliary reclay 2zj,
Stop button 1xk, the coil of auxiliary reclay 1zj are connected in parallel in described 220v quarter-phase circuit after being connected in series；After hydraulic cylinder
Parallel connection after moving back the coil series connection of button 3qa, the normally-closed contact of auxiliary reclay 1zj, stop button 2xk, auxiliary reclay 2zj connects
It is connected to described 220v quarter-phase circuit；After being connected in series with electromagnetic valve 1dt after the normally opened contact parallel connection of auxiliary reclay 1zj, 2zj simultaneously
Connection is connected to described 220v quarter-phase circuit；Electromagnetic valve 2dt, 3dt are parallel to the coil two ends of auxiliary reclay 1zj, 2zj respectively；
It is connected to described 220v quarter-phase circuit after electro connecting pressure gauge yj, the coil series connection of auxiliary reclay 3zj.
8. duplex pull rod horizontal hydraulic machine as claimed in claim 7 it is characterised in that the control loop of described control valve group also
Including electric bell dl and stop button 3ta, electric bell dl is parallel to the coil of auxiliary reclay 3zj, and stop button 3ta is series at electricity and connects
In the loop of point pressure table yj.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410742722.4A CN104476791B (en) | 2014-12-08 | 2014-12-08 | Double-rod horizontal hydraulic machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410742722.4A CN104476791B (en) | 2014-12-08 | 2014-12-08 | Double-rod horizontal hydraulic machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104476791A CN104476791A (en) | 2015-04-01 |
| CN104476791B true CN104476791B (en) | 2017-01-25 |
Family
ID=52751461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410742722.4A Expired - Fee Related CN104476791B (en) | 2014-12-08 | 2014-12-08 | Double-rod horizontal hydraulic machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104476791B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105619862A (en) * | 2016-01-07 | 2016-06-01 | 南通锻压设备股份有限公司 | Horizontal type press-fitting hydraulic machine |
| CN108817921B (en) * | 2018-08-24 | 2024-06-07 | 四川六合特种金属材料股份有限公司 | Horizontal press |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE339412B (en) * | 1970-01-30 | 1971-10-04 | Origo Hydraulik Ab | |
| DE19955519B4 (en) * | 1999-11-18 | 2005-03-17 | Siempelkamp Pressen Systeme Gmbh & Co | Forming press for the pressure-medium-based forming of flat or hollow workpieces, esp. For the hydroforming of hollow blanks, preferably pipe sections |
| JP3782710B2 (en) * | 2001-11-02 | 2006-06-07 | 日邦興産株式会社 | Hydraulic press device |
| CN201338398Y (en) * | 2008-10-06 | 2009-11-04 | 胜利油田高原石油装备有限责任公司 | Horizontal punch press |
| CN102189700B (en) * | 2011-03-30 | 2012-11-21 | 常熟通润汽车零部件股份有限公司 | Lifting jack hydraulic pressure machine |
| CN104149374A (en) * | 2013-05-13 | 2014-11-19 | 江苏飞达液压成套设备有限公司 | Horizontal rotary press |
| CN203500149U (en) * | 2013-09-22 | 2014-03-26 | 西安志越机电科技有限公司 | Hydraulic system used for hole milling and clamping device of connecting rod |
| CN203665987U (en) * | 2013-12-19 | 2014-06-25 | 大同煤矿集团有限责任公司 | Small-size horizontal type press machine |
| CN204278576U (en) * | 2014-12-08 | 2015-04-22 | 上海宝钢物流有限公司 | A kind of double rod type horizontal hydraulic machine |
-
2014
- 2014-12-08 CN CN201410742722.4A patent/CN104476791B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104476791A (en) | 2015-04-01 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170125 Termination date: 20181208 |
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| CF01 | Termination of patent right due to non-payment of annual fee |