CN203465242U - Detection equipment for axial residual stress of cold-drawn steel tube - Google Patents
Detection equipment for axial residual stress of cold-drawn steel tube Download PDFInfo
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- CN203465242U CN203465242U CN201320595043.XU CN201320595043U CN203465242U CN 203465242 U CN203465242 U CN 203465242U CN 201320595043 U CN201320595043 U CN 201320595043U CN 203465242 U CN203465242 U CN 203465242U
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Abstract
The utility model relates to detection equipment for the axial residual stress of a cold-drawn steel tube, which belongs to the technical field of stress detection for cold-drawn steel tubes. The detection equipment comprises an ultrasonic detection device and carrier roller devices located at the both sides of the ultrasonic detection device, wherein the ultrasonic detection device comprises a detection frame (11), and a detection outer box is fixed on the detection frame (11). The detection equipment is capable of rapidly and accurately measuring the axial residual stress of the cold-drawn steel tube, and thus increasing the production qualified rate of the cold-drawn steel tube.
Description
Technical field
The utility model relates to the axial unrelieved stress pick-up unit of a kind of cold drawing steel tube, belongs to cold drawing steel tube stress detection field.
Background technology
The cold-drawn high-precision of China is produced the time that has had till now decades from starting, from basic scale, see and now not only can strength one's very own produce drawn tube, and formed the yearly capacity of tens myriametres, should say that this has been no small progress.But in Tube Drawing process, normal pressure and friction force are axial on product, the impact of hoop unrelieved stress is machine-processed, the follow-up machining processes of steel tube inner hole is also short of the research that affects the aspects such as rule of residual stress distribution feature very much, unrelieved stress on steel pipe final size precision, form accuracy and load-bearing capacity to affect rule not fully aware of yet, this has directly affected the stability in use of product.For example generally hot rolled pipe can obtain the extension plastic yield of 30% left and right by cold-drawn, therefore can pass through reasonable arrangement technique, make cold drawing steel tube keep, under the prerequisite of certain plasticity, suitably improving its tensile strength and hardness, to give full play to the potential of steel, improve stock utilization.But if unrelieved stress is not effectively controlled in Cold Drawing Process, the mechanical mechanics property of drawn tube not only can not rise, and can decline on the contrary.Yet owing to relating to Large Elastic-Plastic Deformation and contact nonlinear problem in Tube Drawing process, in following process, also comprised heat engine coupled field etc., even if adopt some large-scale multiple physical field analysis software to carry out numerical simulation at present, when analyzing unrelieved stress, also there are many difficulties.Research comparison with numerical simulation, experimental study work is more relatively backward, at present except measuring in laboratory Drawing Force, and the relevant report to the work of residual stress distribution experimental study not also, although have the instrument of measuring unrelieved stress, cannot measure the unrelieved stress of steel pipe internal-surface.Therefore production scene in the urgent need to a kind of can be fast, the equipment of Measurement accuracy cold drawing steel tube unrelieved stress.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art part, the utility model provides a kind of cold drawing steel tube axial unrelieved stress checkout equipment, can be fast, the axial unrelieved stress of Measurement accuracy cold drawing steel tube, improve the production qualification rate of cold drawing steel tube.
The utility model is achieved by the following technical solution: the axial unrelieved stress checkout equipment of a kind of cold drawing steel tube, it comprises ultrasonic detection device and is positioned at the support roller device of ultrasonic detection device both sides, described ultrasonic detection device comprises testing stand, on testing stand, be fixed with detection outer container, detect bottom in outer container redundant detection liquid is housed, detect outer container inner upper case in detection is installed, in detecting, in case, tracer liquid is housed, in detecting, in case, be provided with ultrasonic probe and the water pump being placed in described tracer liquid, water pump is connected with described detection outer container by pipeline, in described detection outer container and detection, on case, be manufactured with the through hole passing for tested steel pipe, described support roller device comprises a plurality of frames, and bearing is housed in frame, the motor that carrying roller is housed on bearing and drives carrying roller to rotate, and all carrying rollers are positioned on sustained height.
Described carrying roller comprises the running roller of two umbrella shapes that are oppositely arranged, and forms the holder mouthful of " V " shape between two running rollers, and running roller is arranged on wheel shaft, and wheel shaft is arranged on described bearing by bearing is rotating, between wheel shaft and described motor, reductor is housed.
The beneficial effects of the utility model are:
1, because the utility model adopts cordless, detect unrelieved stress, can not damage steel pipe.
2, the utility model can detect the axial residual stress distribution situation of steel pipe quickly and accurately, improves the production qualification rate of cold drawing steel tube.
3, the utility model is easy and simple to handle, easily implements.
Accompanying drawing explanation
According to drawings and embodiments the utility model is further illustrated below.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1.
In figure, 1, motor, 2, reductor, 3, carrying roller, 3-1, running roller, 3-2, wheel shaft, 3-3, bearing, 4, frame, 5, foot bolt, 6, tested steel pipe, 7, detect outer container, 8, water pump, 9, ultrasonic probe, 10, detect in case, 11, testing stand.
Embodiment
Below in conjunction with embodiment, the utility model is further illustrated.
As Fig. 1, Fig. 2, the axial unrelieved stress checkout equipment of a kind of cold drawing steel tube shown in Fig. 3, it comprises ultrasonic detection device and is positioned at the support roller device of ultrasonic detection device both sides, described ultrasonic detection device comprises testing stand 11, on testing stand 11, be fixed with and detect outer container 7, detect the interior bottom of outer container 7 redundant detection liquid is housed, detect outer container 7 inner upper case 10 in detection is installed, in detecting, case 10 bottoms can be weldingly fixed on and be detected in outer container 7 by gusset, in detecting, in case 10, tracer liquid is housed, in detecting, in case 10, be provided with ultrasonic probe 9 and the water pump 8 being placed in described tracer liquid, water pump 8 is connected with described detection outer container 7 by pipeline, in described detection outer container 7 and detection, on case 10, be manufactured with the through hole passing for tested steel pipe 6, described support roller device comprises a plurality of frames 4, and bearing 3-3 is housed in frame 4, the motor 1 that carrying roller 3 is housed on bearing 3-3 and drives carrying roller 3 to rotate, and all carrying rollers 3 are positioned on sustained height.
Described carrying roller 3 comprises the running roller 3-1 of two umbrella shapes that are oppositely arranged, between two running roller 3-1, form the holder mouthful of " V " shape, it is upper that running roller 3-1 is arranged on wheel shaft 3-2, and rotating to be arranged on described bearing 3-3 upper by bearing for wheel shaft 3-2, between wheel shaft 3-2 and described motor 1, reductor 2 is housed.
The utility model is used for example: No. 45 pipe diameters of external diameter 100mm, internal diameter 80mm, long 5m through cold-drawn hole enlargement to 85mm, for detecting steel shaft to the distribution of unrelieved stress, steel pipe is placed on carrying roller of the present utility model, start motor, the rotation of drive carrying roller, drives tested steel pipe to move axially.The ultrasound wave that ultrasonic probe sends is vertically injected steel pipe walls by aqueous medium, after steel pipe inner wall reflection, by ultrasonic probe, is received.According to character and the size of the feature judgement unrelieved stresss such as the wave amplitude of the reflection supersonic wave receiving, velocity of propagation.After steel pipe one side has inspected, by steel pipe rotary 180 degree, motor reversal, drives steel pipe to be moved back, and detects the opposite side of steel pipe.
Claims (2)
1. the axial unrelieved stress checkout equipment of cold drawing steel tube, it is characterized in that: it comprises ultrasonic detection device and is positioned at the support roller device of ultrasonic detection device both sides, described ultrasonic detection device comprises testing stand (11), on testing stand (11), be fixed with and detect outer container (7), detect the interior bottom of outer container (7) redundant detection liquid is housed, detect outer container (7) inner upper case (10) in detection is installed, in detecting, in case (10), tracer liquid is housed, in detecting, in case (10), be provided with ultrasonic probe (9) and the water pump (8) being placed in described tracer liquid, water pump (8) is connected with described detection outer container (7) by pipeline, in described detection outer container (7) and detection, on case (10), be manufactured with the through hole passing for tested steel pipe (6), described support roller device comprises a plurality of frames (4), and bearing (3-3) is housed in frame (4), the motor (1) that carrying roller (3) is housed on bearing (3-3) and drives carrying roller (3) to rotate, and all carrying rollers (3) are positioned on sustained height.
2. the axial unrelieved stress checkout equipment of cold drawing steel tube according to claim 1, it is characterized in that: described carrying roller (3) comprises the running roller (3-1) of two umbrella shapes that are oppositely arranged, between two running rollers (3-1), form the holder mouthful of " V " shape, running roller (3-1) is arranged on wheel shaft (3-2), rotating to be arranged on described bearing (3-3) upper by bearing for wheel shaft (3-2), between wheel shaft (3-2) and described motor (1), reductor (2) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320595043.XU CN203465242U (en) | 2013-09-25 | 2013-09-25 | Detection equipment for axial residual stress of cold-drawn steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320595043.XU CN203465242U (en) | 2013-09-25 | 2013-09-25 | Detection equipment for axial residual stress of cold-drawn steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203465242U true CN203465242U (en) | 2014-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320595043.XU Expired - Fee Related CN203465242U (en) | 2013-09-25 | 2013-09-25 | Detection equipment for axial residual stress of cold-drawn steel tube |
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| CN (1) | CN203465242U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472131A (en) * | 2013-09-25 | 2013-12-25 | 徐州工程学院 | Apparatus for detecting axial residual stress of cold-drawn steel tube |
-
2013
- 2013-09-25 CN CN201320595043.XU patent/CN203465242U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472131A (en) * | 2013-09-25 | 2013-12-25 | 徐州工程学院 | Apparatus for detecting axial residual stress of cold-drawn steel tube |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20140925 |
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| EXPY | Termination of patent right or utility model |