CN201124575Y - Hydraulic drawing device of press - Google Patents
Hydraulic drawing device of press Download PDFInfo
- Publication number
- CN201124575Y CN201124575Y CNU2007200308569U CN200720030856U CN201124575Y CN 201124575 Y CN201124575 Y CN 201124575Y CN U2007200308569 U CNU2007200308569 U CN U2007200308569U CN 200720030856 U CN200720030856 U CN 200720030856U CN 201124575 Y CN201124575 Y CN 201124575Y
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- support set
- support sleeve
- oil
- hole
- 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
Links
Images
Abstract
The utility model relates to a press machine hydraulic stretcher which is characterized in that the stretcher comprises a hydraulic pump, an oil cylinder, a piston, a support sleeve, a screw and a tightening nut. The support sleeve is fixed on the upper surface of the press machine beam. The oil cylinder is connected on the support sleeve in sliding manner, the piston is fixed on the upper end of the support sleeve, a shaft hole is arranged in the position of the oil cylinder axis, the screw passes through the shaft hole and the support sleeve, a driving hole is formed on one end of the screw as well as a nut, a connecting bolt hole is formed on the other end of the screw, the tightening nut is arranged in the lower part of the screw, and the tightening nut is positioned in the support sleeve; a pressure chamber is arranged on the oil cylinder, an oil inlet is arranged corresponding to the pressure chamber on the oil cylinder, the oil inlet communicates with the hydraulic pump through the oil tube, an air bleed hole is arranged corresponding to the pressure chamber on the oil cylinder, an air bleed valve is arranged at the inlet opening of the air bleed valve. The stretcher has the advantages of reduced oil pressure, increased safety coefficient when tool equipment is used, and greatly saved cost. More than two openings are provided in the lower part of the support sleeve.
Description
(1) technical field
The utility model relates to forcing press parts technical field, particularly a kind of press fluid pressure lengthener of pulling pretension of the turnbuckle that is used for punching machine.
(2) background technology
The large-scale vertical forcing press generally is made of crossbeam, column, base three parts, stability when working for the forcing press that guarantees this structure, crossbeam, column, base three parts are undertaken fixedly connected by 4 connecting bolts, the pulling of general forcing press turnbuckle is adopted is in as shown in Figure 1 the tightening nut mode as hydraulic cylinder itself, though this kind structure structure is simple relatively, but because nut cylinder body volume is little, required nut oil pressure is between 60MPa～80MPa, pressure ratio is higher, and safety coefficient is low; In order to reach very high oil pressure, it is that nut is suppressed that every forcing press must design a cover hydraulic power unit separately, and pumping plant just can utilize after suppressing pulling for nut for the first time seldom again, has increased the cost of product.
(3) summary of the invention
The utility model improves utilization rate of equipment and installations in order to reduce product cost, and the safety coefficient during work, and a kind of convenient and practical press fluid pressure lengthener is provided.
The utility model is realized by following measure: a kind of press fluid pressure lengthener, it is characterized in that: comprise hydraulic pump, oil cylinder, piston, support set, screw rod, tightening nut, support set is fixed on the pressure machine cross-beam on the plane, oil cylinder is slidingly connected on the support set, piston is fixed on the support set upper end, place, oil cylinder axle center has axis hole, screw rod runs through axis hole and support set, screw rod one end has driving hole, this end is provided with nut, the other end is provided with the connecting bolt hole, and the screw rod below is provided with tightening nut, and tightening nut is positioned at support set inside; Be provided with pressure chamber on oil cylinder, the corresponding pressure chamber is provided with fuel feed hole on oil cylinder, and this fuel feed hole is connected with hydraulic pump through oil pipe, and the corresponding pressure chamber has air vent on oil cylinder, and the Kong Chu that advances of air vent is provided with vent valve.
The utility model support set bottom has two with upper shed, and the one, fastening nut when easy to use; The 2nd, be convenient to use the scope of application wider at the edge of crossbeam.
Oil cylinder described in the utility model is provided with the lifting suspension ring.
The beneficial effects of the utility model:
1. reduce oil pressure, improved the safety coefficient when frock is used;
2. through after the seriation, with the pulling pretension of applicable many forcing press turnbuckles of a kind of press fluid pressure lengthener; Because the required oil pressure of pulling is little, so adopt manual pump can finish pulling, need not independent pulling pumping plant, saved cost greatly.
3. the support set bottom has two with upper shed, and the one, fastening nut when easy to use; The 2nd, be convenient to use the scope of application wider at the edge of crossbeam.
4. easy to operate, simple in structure, suitable applying.
(4) description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is traditional hydraulic pressure tightening nut structural representation;
Fig. 2 is the utility model structural representation.
1 vent valve among the figure, plane on 2 cylinder bodies, 3 fuel feed holes, plane on 4 pressure machine cross-beams, 5 support sets, 6 pistons, 7 oil cylinders, 8 screw rods, 9 hydraulic pumps, 10 tightening nuts, 11 lifting suspension ring, 12 driving holes, 13 nuts.
(5) specific embodiment
A kind of press fluid pressure lengthener as shown in Figure 2, comprise hydraulic pump 9, oil cylinder 7, piston 6, support set 5, screw rod 8, tightening nut 10, support set 5 is fixed on the pressure machine cross-beam on the plane 4, oil cylinder 7 is slidingly connected on the support set 5, piston 6 is fixed on support set 5 upper ends, place, oil cylinder 7 axle center has axis hole, screw rod 8 runs through axis hole and support set 5, screw rod 8 one ends have driving hole 12, this end is provided with nut 13, the other end is provided with the connecting bolt hole, and screw rod 8 belows are provided with tightening nut 10, and tightening nut 10 is positioned at support set 5 inside; Be provided with pressure chamber on oil cylinder, the corresponding pressure chamber is provided with fuel feed hole 3 on oil cylinder, and this fuel feed hole 3 is connected with hydraulic pump 9 through oil pipe, and the corresponding pressure chamber has air vent on oil cylinder 7, and the Kong Chu that advances of air vent is provided with vent valve 1.Plane 2 is provided with lifting suspension ring 11 on the cylinder body of described oil cylinder 7.
During use, when needing pulling, device is connected, guarantee that connection begins to suppress with hydraulic pump 9 after reliable, because piston 6 is fixed, in a single day feeding pressure oil oil cylinder 7 in the oil cylinder 7 just begins to move upward, the motion of oil cylinder 7 drives screw rod 8 and moves upward together, and bolt is subjected to the stretching of screw rod 8, and tightening nut 10 can come with 4 disengagings of plane on the pressure machine cross-beam at this moment, there are two openings support set 5 lower ends, manually rotate tightening nut 10 for operating personnel.Rotate tightening nut 10 and in suppressing process, carry out always, can be rotated in place by the product requirement angle value, stop to suppress up to tightening nut 10.This moment, turnbuckle pulling pretension finished with the pressure chamber off-load.After each pulling finished, must make piston 6 be reset to initial no oil condition fully can pull out next time.Proportional to load and the oil pressure in the oil cylinder that bolt applies, payload can be very accurately kept in such design here.Because load is applied directly on the bolt, and all active forces all are used for bolt and elongate, so load produces required space and can reach minimum.
Claims (3)
1. press fluid pressure lengthener, it is characterized in that: comprise hydraulic pump (9), oil cylinder (7), piston (6), support set (5), screw rod (8), tightening nut (10), support set (5) is fixed on the plane on the pressure machine cross-beam (4), oil cylinder (7) is slidingly connected on the support set (5), piston (6) is fixed on support set (5) upper end, place, oil cylinder (7) axle center has axis hole, screw rod (8) runs through axis hole and support set (5), screw rod (8) one ends have driving hole (12), this end is provided with nut (13), the other end is provided with the connecting bolt hole, and screw rod (8) below is provided with tightening nut (10), and tightening nut (10) is positioned at support set (5) inside; Be provided with pressure chamber on oil cylinder, the corresponding pressure chamber is provided with fuel feed hole (3) on oil cylinder, and this fuel feed hole (3) is connected with hydraulic pump (9) through oil pipe, goes up the corresponding pressure chamber at oil cylinder (7) and has air vent, and the Kong Chu that advances of air vent is provided with vent valve (1).
2. press fluid pressure lengthener according to claim 1 is characterized in that: support set (5) bottom has two with upper shed.
3. press fluid pressure lengthener according to claim 1 and 2 is characterized in that: described oil cylinder (7) is provided with lifting suspension ring (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200308569U CN201124575Y (en) | 2007-11-21 | 2007-11-21 | Hydraulic drawing device of press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200308569U CN201124575Y (en) | 2007-11-21 | 2007-11-21 | Hydraulic drawing device of press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201124575Y true CN201124575Y (en) | 2008-10-01 |
Family
ID=39997991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200308569U Expired - Fee Related CN201124575Y (en) | 2007-11-21 | 2007-11-21 | Hydraulic drawing device of press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201124575Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848689A (en) * | 2019-04-07 | 2019-06-07 | 宁波竤远船舶动力设备有限公司 | A kind of cylinder cap stretcher |
| CN111577832A (en) * | 2020-06-18 | 2020-08-25 | 应急管理部上海消防研究所 | Binding type leakage stopping tool and method based on tensioning and locking of rope |
-
2007
- 2007-11-21 CN CNU2007200308569U patent/CN201124575Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848689A (en) * | 2019-04-07 | 2019-06-07 | 宁波竤远船舶动力设备有限公司 | A kind of cylinder cap stretcher |
| CN111577832A (en) * | 2020-06-18 | 2020-08-25 | 应急管理部上海消防研究所 | Binding type leakage stopping tool and method based on tensioning and locking of rope |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201124575Y (en) | Hydraulic drawing device of press | |
| CN201027153Y (en) | High-speed manual hydraulic jack | |
| CN201067889Y (en) | Hydraulic pretightening device | |
| CN204367472U (en) | Straight side press high accuracy slide block homeostasis device | |
| CN102179950A (en) | Novel oil press | |
| CN201064857Y (en) | Hydraulic pressure type pumping unit crank pins loading and unloading equipment | |
| CN203903896U (en) | Hydraulic jack system for motor vehicle | |
| CN101177042A (en) | Press fluid pressure lengthener | |
| CN201908814U (en) | Two-stage pump cylinder and two-stage plunger piston combined pump cylinder pipe type pump | |
| CN206241287U (en) | A kind of horizontal lathe holding device | |
| CN201714739U (en) | Composite oil cylinder | |
| CN203925968U (en) | A kind of power end of adjustable displacement plunger reciprocating pump | |
| CN204842814U (en) | A from mode complex liquid press for micrite iron core | |
| CN203426669U (en) | Device for disassembly and assembly of hydraulic cylinder | |
| CN109382640B (en) | Overhauling tool and overhauling method for accident pressure distribution valve of speed regulator | |
| CN209110990U (en) | A kind of valve assembly dismantling device | |
| CN207161421U (en) | Novel ramming oil cylinder | |
| CN205148204U (en) | Fluid coupling dismounting device | |
| CN204043938U (en) | Windlass holding load testing table | |
| CN104162875B (en) | A kind of special tooling for the assembling of jack stage clip | |
| CN110759274B (en) | Oil jack | |
| CN201998449U (en) | Non-super high pressure pipeline cold isostatic pressing machine with booster and frame combined to a whole | |
| CN204294853U (en) | A kind of riveting equipment | |
| CN203335348U (en) | Hydraulic screwing connecting structure of piston rod and cross head inside reciprocating compressor | |
| CN103771294A (en) | Hydraulic jack |
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: 20081001 Termination date: 20091221 |