CN202921703U - Upper roll and lower roll interval regulation mechanism for tiny reducing double-diameter metal pipe bar straightening machine - Google Patents
Upper roll and lower roll interval regulation mechanism for tiny reducing double-diameter metal pipe bar straightening machine Download PDFInfo
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- CN202921703U CN202921703U CN 201220669061 CN201220669061U CN202921703U CN 202921703 U CN202921703 U CN 202921703U CN 201220669061 CN201220669061 CN 201220669061 CN 201220669061 U CN201220669061 U CN 201220669061U CN 202921703 U CN202921703 U CN 202921703U
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- lower roll
- pipeline
- straightening machine
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- diameter metal
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Abstract
The utility model discloses an upper roll and lower roll interval regulation mechanism for a tiny reducing double-diameter metal pipe bar straightening machine. The upper roll and lower roll interval regulation mechanism for the tiny reducing double-diameter metal pipe bar straightening machine comprises an oil cylinder, a hydraulic pump, an electromotor and a plurality of hydraulic cylinders, wherein the upper end of the plunger of each hydraulic cylinder is connected with a U-shaped bracket; one end of the U-shaped bracket is positioned on the outer side of one end of a lower roll; the other end of the U-shaped bracket is positioned on the outer side of the other end of the lower roll; two ends of the U-shaped bracket are both connected with the roll neck of the lower roll by a bearing; the outer ring of the bearing is fixedly arranged on the U-shaped bracket; the inner ring of the bearing is sheathed on the roll neck; the oil cylinder is connected with the oil inlet of the hydraulic pump by a first pipeline; the oil outlet of the hydraulic pump is connected with a second pipeline; the second pipeline is connected with a plurality of third pipelines; and the third pipelines are respectively connected with the hydraulic cylinders one to one. According to the upper roll and lower roll interval regulation mechanism, the upper roll and lower roll interval of the straightening machine can be effectively regulated so as to guarantee the straightness requirement of two parts of different diameters when the double-diameter reducing metal pipe bar is straightened.
Description
Technical field
The utility model relates to a kind of spacing adjusting mechanism, particularly relates to the two diameter metal tube bar straightening machine up-down rollers spacing adjusting mechanisms of a kind of small reducing.
Background technology
Precision straightening for single diameter tube bar has ripe equipment and technology now.Along with the raising of people to materials demand, some two diameter metal bars have appearred, and adopt traditional straightener to carry out the aligning of two diameter tube rods, and can align the situation that rear product linearity does not reach requirement or the serious impression of surface formation, can not satisfy index request.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, provides a kind of small reducing two diameter metal tube bar straightening machine up-down rollers spacing adjusting mechanisms.This up-down rollers spacing adjusting mechanism can effectively be adjusted the spacing of straightener top roll and lower roll, thereby when guaranteeing two diameter diameter metal bar aligning, the two-part linearity requirement of different-diameter, and it is simple in structure, easy to use, production cost is low, is convenient to promote the use of.
for achieving the above object, the technical solution adopted in the utility model is: the two diameter metal tube bar straightening machine up-down rollers spacing adjusting mechanisms of small reducing, it is characterized in that: comprise oil cylinder, hydraulic pump, be used for to drive the hydraulic pressure pump motor and with a plurality of lower rolls a plurality of hydraulic cylinders one to one, the upper end of described cylinder plunger is connected with " U " type support, one end of described " U " type support is positioned at the outside of lower roll one end, the other end of described " U " type support is positioned at the outside of the lower roll other end, the two ends of described " U " type support all are connected with the roller neck of lower roll by bearing, the outer ring of described bearing is fixed on " U " type support, the inner ring of described bearing is enclosed within on described roller neck, described oil cylinder is connected with the oil-in of hydraulic pump by pipeline one, described hydraulic pump oil-out is connected with pipeline two, described pipeline two is connected with a plurality of pipelines three, a plurality of described pipelines three connect one to one with a plurality of hydraulic cylinders.
The two diameter metal tube bar straightening machine up-down rollers spacing adjusting mechanisms of above-mentioned small reducing is characterized in that: on described pipeline one, filter is installed.
The two diameter metal tube bar straightening machine up-down rollers spacing adjusting mechanisms of above-mentioned small reducing, it is characterized in that: described pipeline two is connected with oil cylinder by pipeline four, on described pipeline four, overflow valve is installed.
The two diameter metal tube bar straightening machine up-down rollers spacing adjusting mechanisms of above-mentioned small reducing is characterized in that: on described pipeline two, Pressure gauge is installed.
The utility model compared with prior art has the following advantages:
1, of the present utility model simple in structure, rationally novel in design, be easy to install.
2, the utility model is by arranging Pressure gauge, and pressure that can the Real-Time Monitoring hydraulic cylinder by overflow valve is set, when pressure surpasses steady state value, can flow back to oil spill in oil cylinder, thereby keeps the balance and stability of each hydraulic cylinder.
3, of the present utility modelly realize that cost is low, result of use is good, is convenient to promote the use of.
In sum, the utility model is simple in structure, rationally novel in design, functional reliability is high, long service life, this up-down rollers spacing adjusting mechanism can effectively be adjusted the spacing of straightener top roll and lower roll, thereby when guaranteeing two diameter diameter metal bar aligning, the two-part linearity requirement of different-diameter.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the annexation schematic diagram of the utility model bearing and " U " type support and roller neck.
Description of reference numerals:
The 1-top roll; The two small diameter metal bars of diameter of 2-;
The 3-lower roll; The 4-hydraulic cylinder; The 4-1-plunger;
The 5-overflow valve; The 6-hydraulic pump; The 7-filter;
8-oil cylinder; 9-motor; 10-Pressure gauge;
11-bearing; 11-1-outer ring; 11-2-inner ring;
12-pipeline one; 13-pipeline two; 14-pipeline three;
15-pipeline four; 16-roller neck; 17-" U " type supports.
The specific embodiment
the two diameter metal tube bar straightening machine up-down rollers spacing adjusting mechanisms of a kind of small reducing as depicted in figs. 1 and 2, comprise oil cylinder 8, hydraulic pump 6, be used for to drive hydraulic pump 6 motor 9 and with a plurality of lower rolls 3 a plurality of hydraulic cylinders 4 one to one, the upper end of described hydraulic cylinder 4 plunger 4-1 is connected with " U " type support 17, one end of described " U " type support 17 is positioned at the outside of lower roll 3 one ends, the other end of described " U " type support 17 is positioned at the outside of lower roll 3 other ends, the two ends of described " U " type support 17 all are connected with the roller neck 16 of lower roll 3 by bearing 11, the outer ring 11-1 of described bearing 11 is fixed on " U " type support 17, the inner ring 11-2 of described bearing 11 is enclosed within on described roller neck 16, described oil cylinder 8 is connected by the oil-in of pipeline 1 with hydraulic pump 6, described hydraulic pump 6 oil-outs are connected with pipeline 2 13, described pipeline 2 13 is connected with a plurality of pipelines 3 14, a plurality of described pipelines 3 14 connect one to one with a plurality of hydraulic cylinders 4.
As shown in Figure 1, in the present embodiment, preferred way is on described pipeline 1, filter 7 to be installed.Described pipeline 2 13 is connected with oil cylinder 8 by pipeline 4 15, on described pipeline 4 15, overflow valve 5 is installed.On described pipeline 2 13, Pressure gauge 10 is installed.
During use, the top roll 1 of straightener and lower roll 3 are at an angle to each other is 120 ° of left and right, the small diameter metal bar 2 of two diameters is arranged between top roll 1 and lower roll 3, described lower roll 3 is connected with the plunger 4-1 of hydraulic cylinder 4 by bearing 11, the pressure of hydraulic cylinder 4 is controlled by Pressure gauge 10 and overflow valve 5, the pressure of motor 9 and hydraulic pump 6 maintenance medium cylinder pressures 4.during work, drive hydraulic pump 6 by motor 9, fluid one 12 enters hydraulic pump 6 by the road in oil cylinder 8, and from hydraulic pump 6 by the road 2 13 and pipeline 3 14 enter in hydraulic cylinder 4, pressure in hydraulic cylinder 4 is increased, thereby promoting plunger 4-1 moves upward, distance between top roll 1 and lower roll 3 is adjusted, when increasing to Pressure gauge 10 setting, pressure tends towards stability, when pressure surpasses steady state value, overflow valve 5 entrys into service, oil spill is flowed back in oil cylinder 8, when pressure decreased arrives steady state value, flood pump 5 shuts down, to keep the balance and stability of each hydraulic cylinder 4.
In the aligning process of straightener, spacing and angle with metal pipe bar smaller diameter end adjusting upper roll 1 and lower roll 3, and at first by top roll 1 and lower roll 3, bar is subject to top roll 1 and lower roll 3 to its frictional force along the aligning direction in the aligning process, when the bar specification did not change, frictional force in horizontal direction.When the reducing transition region entered replaceable straightening roller system, top roll 1 and lower roll 3 were subject to along the downward active force of bar transition region, and this active force can be decomposed into horizontal direction and vertical direction.The pressure of vertical direction makes the plunger 4-1 that hydraulic cylinder 4 is housed move downward, thereby drive lower roll 3 moves straight down (position of top roll 1 does not change), to be adjusted to the upper and lower roll spacing that is fit to larger diameter end, finally realize the aligning of the two diameter metal bars of single small reducing.
In the present embodiment, the aligning material is two diameter reducing silver alloy rods, the specification of ear of maize is small end φ 8.50 * 1000 ㎜, large end φ 8.70 * 3000 ㎜, the major diameter part is 5 ± 1 ㎜ with the small diameter portion length of transition zone, during aligning, open this guiding mechanism, adopt reduced diameter section to regulate upper and lower roll spacing and angle.During aligning, at first smaller diameter end enters roller, carrying out along with aligning, when the reducing transition region entered roller and is, the larger diameter end of metal bar and lower roll 3 produced interactional pressure, the dynamic balance of this pressure and guiding mechanism generation, then be adjusted to the upper and lower roll spacing that larger diameter end is fit to, and then larger diameter end is aligned, thereby complete two diameter reducing money bases rod precision straightenings, after aligning, the bar linearity is less than 0.25mm/300mm.
The above; it is only preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment does, all still belong in the protection domain of technical solutions of the utility model.
Claims (4)
1. two diameter metal tube bar straightening machine up-down rollers spacing adjusting mechanisms of small reducing, it is characterized in that: comprise oil cylinder (8), hydraulic pump (6), be used for to drive hydraulic pump (6) motor (9) and with a plurality of lower rolls (3) a plurality of hydraulic cylinders (4) one to one, the upper end of described hydraulic cylinder (4) plunger (4-1) is connected with " U " type support (17), one end of described " U " type support (17) is positioned at the outside of lower roll (3) one ends, the other end of described " U " type support (17) is positioned at the outside of lower roll (3) other end, the two ends of described " U " type support (17) all are connected with the roller neck (16) of lower roll (3) by bearing (11), the outer ring (11-1) of described bearing (11) is fixed on " U " type support (17), the inner ring (11-2) of described bearing (11) is enclosed within on described roller neck (16), described oil cylinder (8) is connected by the oil-in of pipeline one (12) with hydraulic pump (6), described hydraulic pump (6) oil-out is connected with pipeline two (13), described pipeline two (13) is connected with a plurality of pipelines three (14), a plurality of described pipelines three (14) connect one to one with a plurality of hydraulic cylinders (4).
2. the two diameter metal tube bar straightening machine up-down rollers spacing adjusting mechanisms of small reducing according to claim 1, is characterized in that: on described pipeline one (12), filter (7) is installed.
3. two diameter metal tube bar straightening machine up-down rollers spacing adjusting mechanisms of small reducing according to claim 1, it is characterized in that: described pipeline two (13) is connected with oil cylinder (8) by pipeline four (15), on described pipeline four (15), overflow valve (5) is installed.
4. the two diameter metal tube bar straightening machine up-down rollers spacing adjusting mechanisms of small reducing according to claim 1, is characterized in that: on described pipeline two (13), Pressure gauge (10) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220669061 CN202921703U (en) | 2012-12-05 | 2012-12-05 | Upper roll and lower roll interval regulation mechanism for tiny reducing double-diameter metal pipe bar straightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220669061 CN202921703U (en) | 2012-12-05 | 2012-12-05 | Upper roll and lower roll interval regulation mechanism for tiny reducing double-diameter metal pipe bar straightening machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202921703U true CN202921703U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220669061 Expired - Lifetime CN202921703U (en) | 2012-12-05 | 2012-12-05 | Upper roll and lower roll interval regulation mechanism for tiny reducing double-diameter metal pipe bar straightening machine |
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| Country | Link |
|---|---|
| CN (1) | CN202921703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109954767A (en) * | 2017-12-26 | 2019-07-02 | 上海中国弹簧制造有限公司 | A kind of straightening process of bar |
-
2012
- 2012-12-05 CN CN 201220669061 patent/CN202921703U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109954767A (en) * | 2017-12-26 | 2019-07-02 | 上海中国弹簧制造有限公司 | A kind of straightening process of bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 710201, No. 18, middle section of Jing Gao Bei Road, Jinghe new town, Xi'an economic and Technological Development Zone, Shaanxi, Xi'an Patentee after: Xi'an noble rare metal materials Co.,Ltd. Address before: 710065 No. three, No. 56, hi tech Zone, Shaanxi, Xi'an Patentee before: XI'AN NUOBOER RARE & NOBLE METAL MATERIALS Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |