CN202555611U - Pulling-extending pressing machine for producing seamless steel tubes - Google Patents
Pulling-extending pressing machine for producing seamless steel tubes Download PDFInfo
- Publication number
- CN202555611U CN202555611U CN2012202318000U CN201220231800U CN202555611U CN 202555611 U CN202555611 U CN 202555611U CN 2012202318000 U CN2012202318000 U CN 2012202318000U CN 201220231800 U CN201220231800 U CN 201220231800U CN 202555611 U CN202555611 U CN 202555611U
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- cylinder
- kicker
- master cylinder
- water intaking
- stress frame
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Abstract
The utility model provides a pulling-extending pressing machine for producing seamless steel tubes, relates to a press and solves the problem that an existing pulling-extending pressing machine wastes energy, and has a large working cylinder stroke. The pulling-extending pressing machine is characterized in that the middle of a stress frame is not provided with a material receiving platform, nominal force of a return stroke cylinder is equal to nominal force of two side cylinders and is larger than the sum of nominal force of a main cylinder and setback force for overcoming a core rod. The pulling-extending pressing machine has the advantages of saving energy, decreasing the stroke and reducing manufacture cost and occupied area.
Description
Technical field
The utility model belongs to the forcing press field, particularly a kind of energy savings, reduces the seamless steel pipe drawing and extending hydraulic machine of stroke.
Background technology
The technological principle of drawing and extending hydraulic machine is as shown in Figure 1:
Plug 4 gets into the endoporus of billet 8 under external force; Ring mould 7 keeps motionless; Plug 4 heads on billet 8 endoporus (endoporus of ring mould 7 is less than the external diameter of billet 8) through ring mould 7, and billet 8 is through the ring mould 7 of different-diameter endoporus several times, and the wall thickness of billet 8 reduces; Length is elongated, so just produces the seamless steel pipe of certain specification (different-diameter, wall thickness, length).
The drawing and extending hydraulic machine structure of prior art is as shown in Figure 2: drawing and extending hydraulic machine is made up of side cylinder 1, master cylinder 2, stress frame 3, plug 4, material feeding platform 5, discharging snap ring 6, ring mould 7, depressing table 9, side cylinder water intaking valve 10, side cylinder draining valve 11, master cylinder water intaking valve 12, master cylinder draining valve 13, kicker cylinder water intaking valve 14, kicker cylinder draining valve and kicker cylinder 16.Two side cylinders 1 are positioned at master cylinder 2 both sides; Side cylinder 1, master cylinder 2 are installed in the front portion of stress frame 3, and kicker cylinder 16 is installed in the rear portion of stress frame 3, and plug 4 is driven by working cylinder; And can before and after the guide pillar of stress frame 3, move horizontally; Material feeding platform 5, discharging snap ring 6, ring mould 7 are fixed on the middle part of stress frame 3, and depressing table 9 is arranged on the rear portion of stress frame 3, and side cylinder 1 is provided with side cylinder water intaking valve 10, the side cylinder draining valve 11 that is communicated with hydraulic system; Master cylinder 2 is provided with master cylinder water intaking valve 12, the master cylinder draining valve 13 that is communicated with hydraulic system, and kicker cylinder 16 is provided with kicker cylinder water intaking valve 14, the kicker cylinder draining valve 15 that is communicated with hydraulic system.
The hydraulic system of drawing and extending hydraulic machine is the water pump-station type of belt drive that saves up strength, and side cylinder 1, master cylinder 2, kicker cylinder 16 all are plunger cases.The nominal pressure of master cylinder 2 is more than or equal to side cylinder 1 (two s') nominal pressure, and the nominal pressure of side cylinder 1 (two) equals kicker cylinder 16 (two s') nominal pressure.
Technological process: be illustrated as the beginning state that opens, be transported to the billet 8 after the heating on the material feeding platform 5, side cylinder water intaking valve 10, master cylinder water intaking valve 12 are opened and kicker cylinder draining valve 15 is opened; Plug 4 advances, and behind first ring mould through some ring moulds 7 of setting of the left side of billet 8, plug 4 halts; Open kicker cylinder water intaking valve 14 and side cylinder draining valve 11, master cylinder draining valve 13, plug 4 is retreated, in the time can putting into all the other ring moulds of setting; Plug 4 stops to retreat, and after some ring moulds 7 were put into the pulling station, plug 4 advanced; Like this, plug 4 is being with billet 8 successively through some ring moulds 7, accomplishes repeatedly pulling.In the time of need taking off material, discharging snap ring 6 is stuck in the part that plug 4 does not have billet 8, and plug 4 is retreated, and the billet 8 intact pulling breaks away from plug 4, and the intact billet 8 of pulling is supported by depressing table 9, is transported to outside the press then.During pulling, because distortion is big, temperature can descend billet 8, need reheat on press, is re-applied to after billet 8 heat again to be transported to ring mould 7 left sides on the depressing table 9, and plug 4 advances, and is being with billet 8 completion pullings.
In the pulling process, when plug 4 breaks away from billet 8, just begin the maximum nominal pressure that (stroke of about 0-100mm) needs kicker cylinder 16, only need the part nominal pressure of kicker cylinder 16 subsequently.And existing drawing and extending hydraulic machine with regard to the maximum nominal pressure of total travel with kicker cylinder 16, has been wasted the energy as long as plug 4 is retreated.
In addition, the position that existing drawing and extending hydraulic machine billet 8 is transported on the press has two: the one, and on the material feeding platform 5, another is on the depressing table 9.Because billet 8 need be transported on the material feeding platform 5, each working cylinder of press must have the stroke of billet 8 initial length L.
Summary of the invention
The purpose of the utility model is exactly to the deficiency that exists in the prior art, and a kind of drawing and extending hydraulic machine of producing seamless steel pipe is provided, and solves the existing problem that drawing and extending hydraulic machine wastes energy, the working cylinder stroke is big.
The utility model is realized through following technical scheme.
A kind of drawing and extending hydraulic machine of producing seamless steel pipe; Comprise: side cylinder, master cylinder, stress frame, plug, discharging snap ring, ring mould, depressing table, side cylinder water intaking valve, side cylinder draining valve, master cylinder water intaking valve, master cylinder draining valve, kicker cylinder water intaking valve, kicker cylinder draining valve and kicker cylinder; Two side cylinders are positioned at the master cylinder both sides, and side cylinder, master cylinder are installed in the front portion of stress frame, and kicker cylinder is installed in the rear portion of stress frame; Plug is driven by working cylinder; And can before and after the guide pillar of stress frame, move horizontally, discharging snap ring, ring mould are fixed on the middle part of stress frame, and depressing table is arranged on the rear portion of stress frame; The side cylinder is provided with side cylinder water intaking valve, the side cylinder draining valve that is communicated with hydraulic system; Master cylinder is provided with master cylinder water intaking valve, the master cylinder draining valve that is communicated with hydraulic system, and kicker cylinder is provided with kicker cylinder water intaking valve, the kicker cylinder draining valve that is communicated with hydraulic system, and it is characterized in that: the material feeding platform is not established at the middle part of said stress frame; The nominal pressure of said kicker cylinder equals the nominal pressure of two said side cylinders, and the nominal pressure of said kicker cylinder is greater than the nominal pressure and the summation that overcomes the plug setback force of said master cylinder.
The utility model compared with prior art has the following advantages and beneficial effect:
Because the nominal pressure of kicker cylinder greater than the nominal pressure and the summation that overcomes the plug setback force of master cylinder, when plug and billet disengaging, is opened kicker cylinder water intaking valve, side cylinder draining valve, master cylinder draining valve, with the maximum nominal pressure of kicker cylinder, the about 100mm of stroke; When plug is retreated, open kicker cylinder water intaking valve, side cylinder draining valve, master cylinder water intaking valve, the dynamic medium in the master cylinder just gets in the kicker cylinder like this, and plug is retreated the difference that the energy that is consumed is kicker cylinder and master cylinder nominal pressure, has therefore practiced thrift the energy.
Because the material feeding platform is not established at the middle part of stress frame; No matter the billet heating several times; All the time on depressing table, side cylinder, master cylinder and kicker cylinder have reduced the stroke of billet initial length L like this, have shortened press length in the position of transporting on the press; Reduce the press manufacturing cost, reduced the floor space of press.
Description of drawings
Fig. 1 is the process principle figure of drawing and extending hydraulic machine;
Fig. 2 is the drawing and extending hydraulic machine structural representation of prior art;
Fig. 3 is the structural representation of the utility model.
The utility model is further described through preferred embodiment below in conjunction with accompanying drawing.
The specific embodiment
As shown in Figure 3; A kind of drawing and extending hydraulic machine of producing seamless steel pipe; Comprise: side cylinder 1, master cylinder 2, stress frame 3, plug 4, discharging snap ring 6, ring mould 7, depressing table 9, side cylinder water intaking valve 10, side cylinder draining valve 11, master cylinder water intaking valve 12, master cylinder draining valve 13, kicker cylinder water intaking valve 14, kicker cylinder draining valve 15 and kicker cylinder 16; Two side cylinders 1 are positioned at master cylinder 2 both sides, and side cylinder 1, master cylinder 2 are installed in the front portion of stress frame 3, and kicker cylinder 16 is installed in the rear portion of stress frame 3; Plug 4 is driven by working cylinder; And can before and after the guide pillar of stress frame 3, move horizontally, discharging snap ring 6, ring mould 7 are fixed on the middle part of stress frame 3, and depressing table 9 is arranged on the rear portion of stress frame 3; Side cylinder 1 is provided with side cylinder water intaking valve 10, the side cylinder draining valve 11 that is communicated with hydraulic system; Master cylinder 2 is provided with master cylinder water intaking valve 12, the master cylinder draining valve 13 that is communicated with hydraulic system, and kicker cylinder 16 is provided with kicker cylinder water intaking valve 14, the kicker cylinder draining valve 15 that is communicated with hydraulic system, and it is characterized in that: the material feeding platform is not established at the middle part of said stress frame 3; The nominal pressure of said kicker cylinder 16 equals the nominal pressure of two said side cylinders 1, and the nominal pressure of said kicker cylinder 16 is greater than the nominal pressure and the summation that overcomes the plug setback force of said master cylinder 2.
When plug 4 breaks away from billet 8, open kicker cylinder water intaking valve 14, side cylinder draining valve 11, master cylinder draining valve 13, with the maximum nominal pressure of kicker cylinder 16, the about 100mm of stroke; When plug 4 is retreated; Open kicker cylinder water intaking valve 14, side cylinder draining valve 11, master cylinder water intaking valve 12; Dynamic medium in the master cylinder 2 just gets in the kicker cylinder 16 like this; Plug 4 is retreated the difference that the energy that is consumed is kicker cylinder 16 and master cylinder 2 nominal pressures, has so just practiced thrift dynamic medium, has also just practiced thrift the energy.
No matter billet 8 heating several times; All the time on depressing table 9, side cylinder 1, master cylinder 2 and kicker cylinder 16 have reduced the stroke of billet 8 initial length L like this, have shortened press length in the position of transporting on the press; Reduce the press manufacturing cost, reduced the floor space of press.
Claims (1)
1. drawing and extending hydraulic machine of producing seamless steel pipe; Comprise: side cylinder (1), master cylinder (2), stress frame (3), plug (4), discharging snap ring (6), ring mould (7), depressing table (9), side cylinder water intaking valve (10), side cylinder draining valve (11), master cylinder water intaking valve (12), master cylinder draining valve (13), kicker cylinder water intaking valve (14), kicker cylinder draining valve (15) and kicker cylinder (16); Two side cylinders (1) are positioned at master cylinder (2) both sides; Side cylinder (1), master cylinder (2) are installed in the front portion of stress frame (3); Kicker cylinder (16) is installed in the rear portion of stress frame (3); Plug (4) is driven by working cylinder; And can before and after the guide pillar of stress frame (3), move horizontally, discharging snap ring (6), ring mould (7) are fixed on the middle part of stress frame (3), and depressing table (9) is arranged on the rear portion of stress frame (3); Side cylinder (1) is provided with side cylinder water intaking valve (10), the side cylinder draining valve (11) that is communicated with hydraulic system; Master cylinder (2) is provided with master cylinder water intaking valve (12), the master cylinder draining valve (13) that is communicated with hydraulic system, and kicker cylinder (16) is provided with kicker cylinder water intaking valve (14), the kicker cylinder draining valve (15) that is communicated with hydraulic system, and it is characterized in that: the material feeding platform is not established at the middle part of said stress frame (3); The nominal pressure of said kicker cylinder (16) equals the nominal pressure of two said side cylinders (1), and the nominal pressure of said kicker cylinder (16) is greater than the nominal pressure and the summation that overcomes said plug (4) setback force of said master cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202318000U CN202555611U (en) | 2012-05-15 | 2012-05-15 | Pulling-extending pressing machine for producing seamless steel tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202318000U CN202555611U (en) | 2012-05-15 | 2012-05-15 | Pulling-extending pressing machine for producing seamless steel tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202555611U true CN202555611U (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202318000U Expired - Lifetime CN202555611U (en) | 2012-05-15 | 2012-05-15 | Pulling-extending pressing machine for producing seamless steel tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202555611U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109500190A (en) * | 2018-12-28 | 2019-03-22 | 重庆江东机械有限责任公司 | A kind of horizontal drawing and extending hydraulic machine with built-in speedup oil cylinder |
-
2012
- 2012-05-15 CN CN2012202318000U patent/CN202555611U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109500190A (en) * | 2018-12-28 | 2019-03-22 | 重庆江东机械有限责任公司 | A kind of horizontal drawing and extending hydraulic machine with built-in speedup oil cylinder |
| CN109500190B (en) * | 2018-12-28 | 2023-10-27 | 重庆江东机械有限责任公司 | Horizontal drawing press with built-in speed-increasing oil cylinder |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121128 |
|
| CX01 | Expiry of patent term |