CN210513914U - PVC pipeline tensile test device - Google Patents
PVC pipeline tensile test device Download PDFInfo
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- CN210513914U CN210513914U CN201921399183.3U CN201921399183U CN210513914U CN 210513914 U CN210513914 U CN 210513914U CN 201921399183 U CN201921399183 U CN 201921399183U CN 210513914 U CN210513914 U CN 210513914U
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- tensile test
- pvc pipeline
- clamping
- inner top
- test device
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- 238000009864 tensile test Methods 0.000 title claims abstract description 49
- 230000002457 bidirectional effect Effects 0.000 claims description 18
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 241000446313 Lamella Species 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model relates to a pipeline tensile test field specifically indicates a PVC pipeline tensile test device, the on-line screen storage device comprises a base, install two-way screw on the base, screw-thread fit's sliding seat has been cup jointed respectively at two-way screw both ends, fixedly connected with tensile test chuck on the sliding seat, top toper post in the tensile test chuck package, press from both sides tight lamella, the coaxial fixedly connected with main shaft of interior top toper post, the screw thread has been attacked on the main shaft, the cooperation has first rotation thread bush and second rotation thread bush on the main shaft screw thread, but cup joint relative pivoted rotation hinge cover on the first rotation thread bush, the second rotates and installs articulated stand on the thread bush, press from both sides tight lamella afterbody and be equipped with the extension, the extension middle part articulates on articulated stand, the extension deviates from the one end of pressing from tight lamella and is connected through pulling arm and. The utility model discloses make and press from both sides tight lamella and hold the bore adjustablely to the interior top toper post of cooperation toper column body component can press from both sides the PVC pipeline of the firm different bore models and carry out tensile test.
Description
Technical Field
The utility model relates to a pipeline tensile test field specifically indicates a PVC pipeline tensile test device.
Background
The PVC pipeline tensile test is a test method for measuring material characteristics under the condition of bearing axial tensile load, and data obtained by the tensile test can be used for determining the elastic limit, the elongation, the elastic modulus, the proportional limit, the area reduction, the tensile strength, the yield point, the yield strength and other tensile performance indexes of the material, so that the PVC pipeline tensile test is an important performance index evaluation means of the PVC pipeline.
At present, the chuck of the existing PVC pipeline tensile test device adopts a multi-section fixed chuck to carry out inner and outer wall clamping on the pipeline, and only a corresponding tensile test chuck can be adopted for a single PVB pipeline, so that the application range is small, the flexibility is low, and therefore, the PVC pipeline tensile test device with the adjustable chuck is designed.
SUMMERY OF THE UTILITY MODEL
Based on above problem, the utility model provides a PVC pipeline tensile test device.
For solving the above technical problem, the utility model discloses a technical scheme as follows:
the utility model provides a PVC pipeline tensile test device, the on-line screen storage device comprises a base, install the two-way screw rod on the base, screw-thread fit's sliding seat has been cup jointed respectively at the two-way screw rod both ends, fixedly connected with tensile test chuck on the sliding seat, the tensile test chuck is including the interior toper post that pushes up the PVC pipeline internal face, at least two are used for pressing from both sides the tight lamella of clamp of tight PVC pipeline outer wall, the coaxial fixedly connected with main shaft of interior toper post, it has the screw thread to attack on the main shaft, the cooperation has first rotation thread bush and second rotation thread bush on the main shaft screw thread, first rotation thread bush has cup jointed the rotation hinge cover that can rotate relatively, the second rotates the screw thread bush and installs articulated stand, it is equipped with the extension to press from both sides tight lamella afterbody, extension middle part articulates on articulated stand, the one end.
The utility model discloses in, two-way screw rod has the screw thread that revolves to opposite respectively for both ends to when two-way screw rod rotated, relative motion of keeping away from or being close to relatively can be done to its both ends screw-thread fit's swivel nut, thereby carry out tensile test, generally, rotate along with two-way double-screw bolt for preventing the sliding seat, see figure 1, the utility model discloses still extend the sliding seat bottom and stretch into in the spout of base. The inner top conical column of the tensile test chuck is a conical cylindrical member, the inner wall surface of the clamping lobe is attached to the conical arc surface of the inner top conical column, the conical surface of the inner top conical column can be matched with PVC pipelines with different calibers and models, in addition, the number of the clamping lobes for clamping the outer wall surface of the PVC pipeline can be two, three, four or more, and when the number of the clamping lobes for clamping the outer wall surface of the PVC pipeline is two, the clamping lobes are respectively arranged in a 180-degree manner around the axis of the inner top conical column; when the number of the clamping petals used for clamping the outer wall surface of the PVC pipeline is three, the clamping petals are respectively arranged at 120 degrees around the axis of the inner top conical column; when the number of the clamping petals used for clamping the outer wall surface of the PVC pipeline is four, the clamping petals are respectively arranged at 90 degrees around the axis of the inner top conical column.
During specific work, the inner top conical column and the second rotating threaded sleeve are fixed firstly, the first rotating threaded sleeve is rotated forwards, the first rotating threaded sleeve releases a gap between the clamping flap and the inner top conical column through the pulling arm, then a PVC pipeline is inserted into the gap between the clamping flap and the inner top conical column, the first rotating threaded sleeve is rotated backwards, the first rotating threaded sleeve pushes the clamping flap to rotate through the pulling arm, and the first rotating threaded sleeve is matched with the inner top conical column to clamp the PVC pipeline. In addition, the inner top conical column and the first rotating threaded sleeve can be fixed firstly, and then the second rotating threaded sleeve is rotated forwards or backwards to pull the clamping valve to clamp or release the PVC pipeline. After the PVC pipeline is clamped and fixed, the screw rod is rotated to drive the sliding seat to move relatively, so that the tensile test chucks at the two ends of the bidirectional screw rod can be used for tensile test of the PVC pipeline, and the test process is realized.
As a preferable mode, the bidirectional screw is driven by a servo motor, and the servo motor is connected to the bidirectional screw through a reducer and a coupling.
As a preferable mode, a hand wheel is arranged at one end of the main shaft, which is far away from the inner top conical column.
Preferably, the inner top tapered column is a tapered cylindrical member, and the inner wall surface of the clamping flap is fitted to the tapered arc surface of the inner top tapered column.
As a preferable mode, a bearing is arranged at the joint of the rotary hinge sleeve and the first rotary threaded sleeve.
Preferably, a positioning nut for limiting the first rotary threaded sleeve is screwed on the thread of the main shaft.
Preferably, the inner top conical column is provided with an annular step.
In a preferable mode, the number of the clamping flaps for clamping the outer wall surface of the PVC pipeline is two, and the two clamping flaps are respectively arranged at 180 degrees around the axis of the inner top conical column.
Preferably, three clamping flaps for clamping the outer wall surface of the PVC pipeline are arranged at 120 degrees around the axis of the inner top conical column respectively.
As a preferable mode, the number of the clamping flaps for clamping the outer wall surface of the PVC pipeline is four, and the four clamping flaps are respectively arranged around the axis of the inner top conical column at 90 degrees.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model pulls the clamping flap to turn and open through the first rotating thread sleeve, the second rotating thread sleeve and the pulling arm, so that the clamping flap can be used for holding the caliber to be adjustable, and can clamp and stabilize PVC pipelines with different calibers and models by matching with the inner top conical column of the conical columnar member to carry out the tensile test, thereby having the characteristics of large application range and high flexibility;
(2) the joint of the rotary hinge sleeve and the first rotary threaded sleeve is also provided with a bearing, so that the relative friction force between the rotary hinge sleeve and the first rotary threaded sleeve is reduced, and the rotary hinge sleeve and the first rotary threaded sleeve can rotate more flexibly;
(3) the utility model also has a positioning nut screwed on the thread of the main shaft for limiting the first rotary thread bush, thus avoiding the phenomenon that the first rotary thread bush shifts for a plurality of degrees and excessively strains the pulling arm to crush the test PVC pipeline;
(4) the utility model discloses be provided with a plurality of annular ladders on the interior toper post, a plurality of annular ladders correspond the PVC pipeline of a plurality of bore models, have increased the laminating area of PVC pipeline internal face and interior toper post to the relative frictional force of top toper post and PVC pipeline in the mode increase through increase friction area makes the PVC pipeline add to hold more firm, can apply bigger axial tension.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the structure diagram of the tensile test chuck in the open state of the present invention.
Fig. 3 is a front view of the tensile test chuck in a closed state.
Fig. 4 is a right side view of the tensile test chuck of the present invention in a closed state.
Fig. 5 is the structure schematic diagram of the stepped tensile test chuck of the present invention.
The device comprises a base 1, a sliding seat 2, a bidirectional screw rod 3, a coupler 4, a reducer 5, a servo motor 6, a tensile test chuck 7, a main shaft 71, a positioning nut 72, a first rotating threaded sleeve 73, a second rotating threaded sleeve 74, a conical column 75 in the top, a clamping flap 76, a hinged upright column 77, a pulling arm 78, a rotating hinged sleeve 79 and a hand wheel 710.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. Embodiments of the present invention include, but are not limited to, the following examples.
Example 1:
referring to fig. 1 to 4, a PVC pipeline tensile test apparatus comprises a base 1, a bidirectional screw 3 is installed on the base 1, a sliding seat 2 in threaded fit is respectively sleeved at two ends of the bidirectional screw 3, a tensile test chuck 7 is fixedly connected to the sliding seat 2, the tensile test chuck 7 comprises an inner top conical column 75 for propping against the inner wall surface of the PVC pipeline, at least two clamping flaps 76 for clamping the outer wall surface of the PVC pipeline, the inner top conical column 75 is coaxially and fixedly connected with a spindle 71, threads are tapped on the spindle 71, a first rotating thread bush 73 and a second rotating thread bush 74 are matched on the threads of the spindle 71, specifically, the first rotating thread bush 73 is fixedly connected with the sliding seat 2, a rotating hinge bush 79 capable of rotating relatively is sleeved on the first rotating thread bush 73, a hinge upright post 77 is installed on the second rotating thread bush 74, an extension piece is arranged at the tail part of the clamping flap 76, the middle part of the extension piece is hinged on the hinge upright post 77, the end of the extension piece facing away from the clamping flap 76 is connected to a rotary hinge sleeve 79 by means of a pull arm 78.
In this embodiment, the two ends of the bidirectional screw 3 are respectively provided with threads with opposite rotation directions, so that when the bidirectional screw 3 rotates, the thread sleeves at the two ends of the bidirectional screw can move relatively away from or relatively close to each other in opposite directions, so as to perform a tensile test, generally, in order to prevent the sliding seat 2 from rotating along with the bidirectional stud, see fig. 1, the bottom of the sliding seat 2 is extended and extended into the sliding groove of the base 1 in this embodiment. The inner top conical column 75 of the tensile test chuck 7 is a conical cylindrical member, the inner wall surface of the clamping petals 76 is attached to the conical arc surface of the inner top conical column 75, the conical surface of the inner top conical column 75 can be matched with PVC pipelines with different calibers and models, in addition, the clamping petals 76 for clamping the outer wall surface of the PVC pipeline can be two, three, four or more, and when the number of the clamping petals 76 for clamping the outer wall surface of the PVC pipeline is two, the clamping petals 76 are respectively arranged in a 180-degree manner around the axis of the inner top conical column 75; when the number of the clamping petals 76 for clamping the outer wall surface of the PVC pipeline is three, the clamping petals 76 are respectively arranged at 120 degrees around the axis of the inner top conical column 75; when the number of the clamping petals 76 for clamping the outer wall surface of the PVC pipe is four, the clamping petals 76 are respectively arranged at 90 degrees around the axis of the inner top conical column 75.
During specific work, the main shaft 71 is rotated backwards, the tensile test chucks 7 at the two ends of the bidirectional screw rod 3 are withdrawn, the second threaded sleeve is rotated backwards, the first rotating threaded sleeve 73 and the second threaded sleeve are relatively close to each other, a gap between the clamping flap 76 and the inner top conical column 75 is released through the pull arm 78, then a PVC pipeline is inserted into the gap between the clamping flap 76 and the inner top conical column 75, the second rotating threaded sleeve 74 and the main shaft 71 are rotated forwards, the clamping flap 76 is pushed to rotate through the pull arm 78, the working process of clamping the PVC pipeline is realized by matching with the inner top conical column 75, after the PVC pipeline is clamped and fixed, the sliding seat 2 is driven to move relatively by rotating the screw rod, so that the tensile test chucks 7 at the two ends of the bidirectional screw rod 3 are used for tensile test of the PVC pipeline, and the test process is realized.
Further, the bidirectional screw 3 of the present embodiment is specifically driven by a servo motor 6, and the servo motor 6 is connected to the bidirectional screw 3 through a speed reducer 5 and a coupling 4.
Further, the joint of the rotating hinge sleeve 79 and the first rotating threaded sleeve 73 is further provided with a bearing, so that the relative friction between the rotating hinge sleeve 79 and the first rotating threaded sleeve 73 is reduced, and the rotating hinge sleeve 79 and the first rotating threaded sleeve 73 can rotate more flexibly.
Furthermore, the positioning nut 72 for limiting the first rotating threaded sleeve 73 is screwed on the thread of the main shaft 71 in this embodiment, so as to avoid the phenomenon that the first rotating threaded sleeve 73 is displaced by multiple degrees and excessively pulls the pull arm 78 to crush the test PVC pipe.
Furthermore, a hand wheel 710 is arranged at one end of the main shaft 71, which is away from the inner top conical column 75, so that the worker can conveniently operate the hand wheel 710 to rotate.
In addition, referring to fig. 2, this embodiment can also be provided with a plurality of annular ladders on top of the toper post 75 in, and a plurality of annular ladders correspond the PVC pipeline of a plurality of bore models, have increased the laminating area of PVC pipeline internal face and top of the toper post 75 in to the relative frictional force of top of the toper post 75 in the mode increase through increase friction area with the PVC pipeline, make the PVC pipeline add to hold more firm, can apply bigger axial tension.
The embodiment of the present invention is the above. The above embodiments and the specific parameters in the embodiments are only for the purpose of clearly expressing the verification process of the utility model, and are not used to limit the patent protection scope of the present invention, the patent protection scope of the present invention is still subject to the claims, all the structural changes equivalent to the contents of the description and the drawings of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a PVC pipeline tensile test device which characterized in that: the device comprises a base (1), a bidirectional screw (3) is installed on the base (1), a sliding seat (2) in threaded fit is respectively sleeved at two ends of the bidirectional screw (3), a tensile test chuck (7) is fixedly connected to the sliding seat (2), the tensile test chuck (7) comprises an inner top conical column (75) used for propping against the inner wall surface of a PVC pipeline and at least two clamping flaps (76) used for clamping the outer wall surface of the PVC pipeline, a main shaft (71) is coaxially and fixedly connected to the inner top conical column (75), threads are tapped on the main shaft (71), a first rotating thread sleeve (73) and a second rotating thread sleeve (74) are matched on the threads of the main shaft (71), a rotating hinge sleeve (79) capable of rotating relatively is sleeved on the first rotating thread sleeve (73), and a hinge upright post (77) is installed on the second rotating thread sleeve (74), the tail part of the clamping flap (76) is provided with an extending piece, the middle part of the extending piece is hinged on a hinged upright post (77), and one end of the extending piece, which is far away from the clamping flap (76), is connected with a rotary hinged sleeve (79) through a pull arm (78).
2. The PVC pipeline tensile test device of claim 1, characterized in that: the bidirectional screw rod (3) is driven by a servo motor (6), and the servo motor (6) is connected with the bidirectional screw rod (3) through a speed reducer (5) and a coupler (4).
3. The PVC pipeline tensile test device of claim 1, characterized in that: and a hand wheel (710) is arranged at one end of the main shaft (71) deviating from the inner top conical column (75).
4. The PVC pipeline tensile test device of claim 1, characterized in that: the inner top conical column (75) is a conical cylindrical member, and the inner wall surface of the clamping valve (76) is attached to the conical cambered surface of the inner top conical column (75).
5. The PVC pipeline tensile test device of claim 1, characterized in that: and a bearing is arranged at the joint of the rotary hinge sleeve (79) and the first rotary threaded sleeve (73).
6. The PVC pipeline tensile test device of claim 1, characterized in that: and a positioning nut (72) for limiting a first rotating threaded sleeve (73) is screwed on the thread of the main shaft (71).
7. The PVC pipeline tensile test device of claim 1, characterized in that: and an annular step is arranged on the inner top conical column (75).
8. The PVC pipeline tensile test device of any one of claims 1 to 6, characterized in that: the two clamping flaps (76) for clamping the outer wall surface of the PVC pipeline are arranged at 180 degrees around the axis of the inner top conical column (75).
9. The PVC pipeline tensile test device of any one of claims 1 to 6, characterized in that: the number of the clamping flaps (76) for clamping the outer wall surface of the PVC pipeline is three, and the clamping flaps are respectively arranged around the axis of the inner top conical column (75) in an angle of 120 degrees.
10. The PVC pipeline tensile test device of any one of claims 1 to 6, characterized in that: the number of the clamping flaps (76) for clamping the outer wall surface of the PVC pipeline is four, and the four clamping flaps are respectively arranged around the axis of the inner top conical column (75) in 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921399183.3U CN210513914U (en) | 2019-08-26 | 2019-08-26 | PVC pipeline tensile test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921399183.3U CN210513914U (en) | 2019-08-26 | 2019-08-26 | PVC pipeline tensile test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210513914U true CN210513914U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921399183.3U Expired - Fee Related CN210513914U (en) | 2019-08-26 | 2019-08-26 | PVC pipeline tensile test device |
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| Country | Link |
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| CN (1) | CN210513914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112985997A (en) * | 2021-02-10 | 2021-06-18 | 中国人民解放军陆军装甲兵学院 | Cone shell sample piece composite load fatigue test device |
-
2019
- 2019-08-26 CN CN201921399183.3U patent/CN210513914U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112985997A (en) * | 2021-02-10 | 2021-06-18 | 中国人民解放军陆军装甲兵学院 | Cone shell sample piece composite load fatigue test device |
| CN112985997B (en) * | 2021-02-10 | 2022-09-23 | 中国人民解放军陆军装甲兵学院 | Cone shell sample piece composite load fatigue test device |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200512 |
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| CF01 | Termination of patent right due to non-payment of annual fee |