CN209278703U - It is a kind of for manufacturing the straight tube and bend pipe of bend pipe - Google Patents
It is a kind of for manufacturing the straight tube and bend pipe of bend pipe Download PDFInfo
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- CN209278703U CN209278703U CN201821779792.7U CN201821779792U CN209278703U CN 209278703 U CN209278703 U CN 209278703U CN 201821779792 U CN201821779792 U CN 201821779792U CN 209278703 U CN209278703 U CN 209278703U
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Abstract
The utility model provides a kind of for manufacturing the straight tube and bend pipe of bend pipe, belongs to pipe bending technique field.The tube wall of straight tube has the first side and second side opposite with the first side, and straight tube includes sequentially connected first segment, second segment and third section.The tube wall of first segment and the pipe thickness of third section are uniform, and the pipe thickness of the first side of second segment is greater than the pipe thickness of second side of second segment.The second segment of straight tube is bent to form bend pipe along the direction of the first side towards second side.This straight tube avoids the Extrude Face of bend pipe excessively thin after forming bend pipe, and the compressing surface of bend pipe is blocked up, improves the quality of bend pipe.
Description
Technical field
The utility model relates to pipe bending technique fields, in particular to a kind of for manufacturing the straight tube and bend pipe of bend pipe.
Background technique
Existing pipe bending technique usually uses straight tube and is manufactured, and will form bend pipe after straight tube bending.
The pipeline of the prior art is concentric straight tube, after straight tube bending, the Extrude Face of bend pipe i.e. the outside of bend pipe
The thickness in face is thinned, and the compressing surface of bend pipe i.e. the medial surface of bend pipe thicken, and amount of swelling is greater than Reducing thickness, are unfavorable for curved
The production and use of pipe.
Utility model content
The first of the utility model be designed to provide it is a kind of for manufacturing the straight tube of bend pipe, using this straight tube manufacture it is curved
Pipe, the Extrude Face that can be avoided bend pipe is excessively thin, and the compressing surface of bend pipe is blocked up, improves the quality of bend pipe.
The second of the utility model is designed to provide a kind of bend pipe, is made using above-mentioned straight tube, can be avoided bend pipe
Extrude Face is excessively thin, and the compressing surface of bend pipe is blocked up, improves the quality of bend pipe.
Based on above-mentioned first purpose, the utility model adopts the following technical solutions realization:
A kind of straight tube, the tube wall of straight tube have the first side and second side opposite with the first side, and straight tube includes being sequentially connected
First segment, second segment and third section；
The tube wall of first segment and the pipe thickness of third section are uniform, and the pipe thickness of the first side of second segment is greater than second segment
Second side pipe thickness.
Further, in the utility model optional embodiment, the thickness of the tube wall of second side of above-mentioned second segment and
The consistency of thickness of one section of tube wall.
Further, in the utility model optional embodiment, the of the close second segment of the first side of above-mentioned first segment
One end of side forms First Transition portion, and the slope ratio in First Transition portion is 1:(20-30)；The close institute of first side of third section
The one end for stating the first side of second segment forms the second transition part, and the slope ratio of the second transition part is 1:(20-30).
Further, in the utility model optional embodiment, the thickness of the tube wall of second side of above-mentioned second segment to
The thickness of the tube wall of two sections of the first side gradually increases.
Further, in the utility model optional embodiment, the pipe thickness and second of the first side of above-mentioned second segment
The difference of the pipe thickness of second side of section is 4-8mm.
Further, in the utility model optional embodiment, the pipe thickness and second of the first side of above-mentioned second segment
The difference of the pipe thickness of second side of section is 6mm.
Based on above-mentioned second purpose, the utility model adopts the following technical solutions realization:
The second segment of above-mentioned straight tube is bent to form by a kind of bend pipe along the direction of the first side towards second side.
Further, in the utility model optional embodiment, the pipe thickness and second of the first side of above-mentioned second segment
The pipe thickness of second side of section is consistent.
Further, in the utility model optional embodiment, the central angle of above-mentioned bend pipe is 80 ° -100 °.
Further, in the utility model optional embodiment, the central angle of above-mentioned bend pipe is 90 °.
Compared with prior art, the straight tube for being used to manufacture bend pipe and bend pipe of the embodiments of the present invention offer is beneficial
Effect includes:
The first segment and third section of straight tube be consistent with common pipeline, is concentric tube, and pipe thickness is consistent, only second segment
The pipe thickness of first side is greater than the pipe thickness of second side, when this straight tube is formed bend pipe, by the second segment edge of straight tube
First side is bent towards the direction of second side, and when forming bend pipe, the first side is the lateral surface of bend pipe, and second side is the inside of bend pipe
The lateral surface in face, bend pipe stretches, the medial surface compression of bend pipe, since the pipe thickness of the first side is greater than the thickness of pipe wall of second side
Degree bends the first side of straight tube towards the direction of second side, so, the first side is Extrude Face, and second side is compressing surface, bending
After, the thickness of the first side reduces, and the thickness of second side increases, i.e., the thickness of Extrude Face reduces, and the thickness of compressing surface increases, from
And it is more nearly the thickness of Extrude Face and compressing surface, avoid the Extrude Face of bend pipe excessively thin, the compressing surface of bend pipe is blocked up, improves curved
The quality of pipe.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
The protection scope of the utility model is also belonged to obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is provided by the embodiment of the utility model for manufacturing the structural schematic diagram of the straight tube of bend pipe；
Fig. 2 is the A-A sectional view of Fig. 1；
Fig. 3 is the C-C sectional view of Fig. 1；
Fig. 4 is the B-B sectional view of Fig. 1；
Fig. 5 is the structural schematic diagram of bend pipe provided by the embodiment of the utility model.
Icon: the first side 110-；120- second side；130- first segment；140- second segment；150- third section；
141- medial surface；142- lateral surface；111- First Transition portion；The second transition part of 131-.
Specific embodiment
The pipeline of the prior art is concentric straight tube, after straight tube bending, the Extrude Face of bend pipe i.e. the outside of bend pipe
The thickness in face is thinned, and the compressing surface of bend pipe i.e. the medial surface of bend pipe thicken, and amount of swelling is greater than Reducing thickness, especially small
The compressing surface of the pipeline of caliber thickens particularly evident, is unfavorable for the production and use of bend pipe.
For the design angle of pipeline, thickening for compressing surface is not necessarily to, and excessive thickening can also be to pipeline system
System affects, while the thinned of Extrude Face also makes the of poor quality of pipeline, is not able to satisfy the demand of pipe-line system.
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as "inner", "outside" is base
In orientation or positional relationship shown in the drawings or the utility model product using when the orientation usually put or position close
System, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition,
Term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to be integrally connected；For the general of this field
For logical technical staff, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
Embodiment
Fig. 1 is provided in this embodiment for manufacturing the structural schematic diagram of the straight tube of bend pipe.Referring to Fig. 1, the present embodiment
In, for manufacturing the straight tube of bend pipe, the tube wall of straight tube has the first side 110 and second side 120 opposite with the first side 110, directly
Pipe includes sequentially connected first segment 130, second segment 140 and third section 150.
Fig. 2 is the A-A sectional view of Fig. 1, and Fig. 3 is the C-C sectional view of Fig. 1.Please refer to Fig. 2 and Fig. 3, in the present embodiment,
The tube wall of first segment 130 and the pipe thickness a of third section 150 are uniform, the first segment 130 and third section 150 of straight tube and common
Pipeline is consistent, is concentric tube, tube wall a consistency of thickness, when manufacturing bend pipe, the pipeline of first segment 130 and third section 150 is not
It can be bent, be still straight pipe shape.
Fig. 4 is the B-B sectional view of Fig. 1, and Fig. 5 is the structural schematic diagram of bend pipe provided in this embodiment.Please refer to Fig. 4 and
Fig. 5, in the present embodiment, the pipe thickness b of the first side 110 of second segment 140 is greater than the pipe thickness a of second side 120, and bend pipe is
The second segment 140 of straight tube is bent to form along the direction of first side 110 towards second side 120.The manufacturing method of bend pipe is will be straight
The second segment 140 of pipe is bent to form bend pipe along the direction of first side 110 towards second side 120.
When this straight tube is formed bend pipe, by the second segment 140 of straight tube along the first side 110 towards the side of second side 120
To bending, when forming bend pipe, the first side 110 is the lateral surface 142 of bend pipe, and second side 120 is the medial surface 141 of bend pipe, bend pipe
Lateral surface 142 stretch, the medial surface 141 of bend pipe compresses, since the pipe thickness b of the first side 110 is greater than the pipe of second side 120
Wall thickness a, by the first side 110 of straight tube towards second side 120 direction bend, so, the first side 110 be Extrude Face, second
Side 120 is compressing surface, and after bending, the thickness of the first side 110 reduces, and the thickness of second side 120 increases, i.e. the thickness of Extrude Face
Reduce, the thickness of compressing surface increases, so that the thickness of Extrude Face and compressing surface be made to be more nearly, avoids the Extrude Face mistake of bend pipe
Thin, the compressing surface of bend pipe is blocked up, improves the quality of bend pipe, extends the service life of bend pipe.
Optionally, please continue to refer to Fig. 2-Fig. 4, the thickness a and first segment of the tube wall of second side 120 of second segment 140
The thickness a of 130 tube wall is consistent.Since when second segment 140 is bent, second side 120 will not be stretched, can be compressed,
So the thickness of second side 120 of the thickness a and third section 150 of second side 120 of the thickness a of second side 120 and first segment 130
It is consistent to spend a, conducive to the manufacture of straight tube, also, after bend pipe manufacture, the compression of compressing surface in a certain range, bend pipe
Quality is more preferably.
Please continue to refer to Fig. 1, in the present embodiment, the first side of the close second segment 140 of the first side 110 of first segment 130
110 one end forms First Transition portion 111, and the slope ratio in First Transition portion 111 is 1:(20-30)；First side of third section 150
One end of 110 the first side 110 close to the second segment 140 forms the second transition part 131, the slope ratio of the second transition part 131
For 1:(20-30).
The position of the close second segment 140 of first segment 130 forms First Transition portion 111, and First Transition portion 111 is to go up a slope,
First side 110 of first segment 130 gradually thickens, and is formed from second segment 140 to the position of the close second segment 140 of third section 150
First side 110 of the second transition part 131, the close second segment 140 of third section 150 is gradually thinning, under the second transition part 131 is
Slope, keeps the intensity of straight tube higher, not will form apparent variable diameter.Meanwhile the quality of obtained bend pipe is more preferably, meets pipe-line system
Demand.
Optionally, the thickness a of the tube wall of second side 120 of second segment 140 to the first side 110 of second segment 140 tube wall
Thickness b gradually increase.The outer wall of the inner wall and second segment 140 that make second segment 140 forms two circles, and the radius of the circle of outer wall
Greater than the radius of the circle of inner wall, the center of circle of the circle of outer wall is deviateed relative to the center of circle of the circle of inner wall to the direction of the first side 110, is made
Off-centre operation structure is formed between the inner wall and outer wall of second segment 140.
Optionally, please continue to refer to Fig. 4, the pipe thickness b of the first side 110 of second segment 140 and the second of second segment 140
The difference of the pipe thickness a of side 120 is 4-8mm.Further, the pipe thickness b and second segment of the first side 110 of second segment 140
The difference of the pipe thickness a of 140 second side 120 is 6mm.
Make straight tube after forming bend pipe, the thickness disparity of the compressing surface of the thickness and bend pipe of the Extrude Face of bend pipe is smaller,
Keep the thickness at the second segment 140 of bend pipe more uniform, the quality of bend pipe more preferably, meets the needs of pipe-line system.
Optionally, the central angle alpha of bend pipe is 80 ° -100 °.Further, the central angle alpha of bend pipe is 90 °.It can will be straight
Control causes the bend pipe for meeting pipe-line system demand.
By taking the nominal size of pipeline is the pipe of 1067*52 as an example, the internal diameter of standard pipeline is 963mm, forms bend pipe
In the process, the trommel of the extrados of the Extrude Face i.e. bend pipe of bend pipe, for meet bend pipe lateral surface 142 tube wall
Demand, so, when bend pipe is not made also in straight tube, the thickness b of the first side 110 of straight tube is 58mm.
The thickness b of first side 110 of straight tube is that 58mm meets the demand of extrados, and manufacture is at eccentric straight tube, first
The thickness b of side 110 is 58mm, and during being manufactured by straight tube into bend pipe, the thickness of second side 120 increases second side 120,
Namely the thickness of the compressing surface of bend pipe or intrados increases, but a certain amount of thicken by Mechanics Calculation is beneficial, institute
It is 52mm with the thickness a of second side 120, the consistency of thickness with first segment 130 and the tube wall of third section 150.
So, it is determined that the diameter of the outer wall at the middle part of the second segment 140 of straight tube is 58+52+963=1067mm.Second
The center of circle of the outer wall of section 140 can reach design requirement to the inclined 3mm in direction of the first side 110.
The preparation method of above-mentioned straight tube is: straight tube entirety Vehicle Processing is by first integral manufacturing with a thickness of the shell of 60mm
Then 58mm adjusts the rotation center bias 3mm of workpiece, 140 vehicle of second segment of straight tube or boring are machined to whole bias (first
Side 110b is 58mm, and second side 120a is 52mm).Again adjustment rotating center processing first segment 130 and third section 150 to
The concentric pipes of 52mm.
It is after manufacturing good above-mentioned straight tube, the second segment 140 of straight tube is curved along the direction of first side 110 towards second side 120
Folding forms bend pipe, and making 110 lateral surface 142 of the first side is Extrude Face, and second side 120 is that medial surface 141 is compressing surface, shape
At bend pipe.The specific mode for forming bend pipe is the prior art, and the present embodiment, which is not done, excessively to be repeated.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of for manufacturing the straight tube of bend pipe, which is characterized in that the tube wall of the straight tube has the first side and with described first
The opposite second side in side, the straight tube include sequentially connected first segment, second segment and third section；
The pipe thickness of the tube wall of the first segment and the third section is uniform, the thickness of pipe wall of first side of the second segment
Degree is greater than the pipe thickness of described second side of the second segment.
2. straight tube according to claim 1, which is characterized in that the thickness of the tube wall of described second side of the second segment with
The consistency of thickness of the tube wall of the first segment.
3. straight tube according to claim 2, which is characterized in that close described the second of first side of the first segment
One end of first side of section forms First Transition portion, and the slope ratio in the First Transition portion is 1:(20-30)；The third
One end of first side close to the second segment of first side of section forms the second transition part, second transition part
Slope ratio be 1:(20-30).
4. straight tube according to claim 3, which is characterized in that the thickness of the tube wall of described second side of the second segment is extremely
The thickness of the tube wall of first side of the second segment gradually increases.
5. straight tube according to claim 1-4, which is characterized in that the pipe of first side of the second segment
The difference of the pipe thickness of described second side of wall thickness and the second segment is 4-8mm.
6. straight tube according to claim 5, which is characterized in that the pipe thickness of first side of the second segment and institute
The difference for stating the pipe thickness of described second side of second segment is 6mm.
7. a kind of bend pipe, which is characterized in that by the second segment of the straight tube described in any one of claims 1-6 along institute
The direction for stating the first side towards described second side is bent to form.
8. bend pipe according to claim 7, which is characterized in that the pipe thickness of first side of the second segment and institute
The pipe thickness for stating described second side of second segment is consistent.
9. bend pipe according to claim 8, which is characterized in that the central angle of the bend pipe is 80 ° -100 °.
10. bend pipe according to claim 9, which is characterized in that the central angle of the bend pipe is 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821779792.7U CN209278703U (en) | 2018-10-30 | 2018-10-30 | It is a kind of for manufacturing the straight tube and bend pipe of bend pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821779792.7U CN209278703U (en) | 2018-10-30 | 2018-10-30 | It is a kind of for manufacturing the straight tube and bend pipe of bend pipe |
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| Publication Number | Publication Date |
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| CN209278703U true CN209278703U (en) | 2019-08-20 |
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| CN201821779792.7U Active CN209278703U (en) | 2018-10-30 | 2018-10-30 | It is a kind of for manufacturing the straight tube and bend pipe of bend pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163161A (en) * | 2018-10-30 | 2019-01-08 | 江苏电力装备有限公司 | A kind of manufacturing method of straight tube for manufacturing bend pipe, bend pipe and bend pipe |
-
2018
- 2018-10-30 CN CN201821779792.7U patent/CN209278703U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163161A (en) * | 2018-10-30 | 2019-01-08 | 江苏电力装备有限公司 | A kind of manufacturing method of straight tube for manufacturing bend pipe, bend pipe and bend pipe |
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