CN109916732B - Steel pipe hydrostatic test device - Google Patents
Steel pipe hydrostatic test device Download PDFInfo
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- CN109916732B CN109916732B CN201910345930.3A CN201910345930A CN109916732B CN 109916732 B CN109916732 B CN 109916732B CN 201910345930 A CN201910345930 A CN 201910345930A CN 109916732 B CN109916732 B CN 109916732B
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- steel pipe
- circular arc
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- clamping
- sealing
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 60
- 239000010959 steel Substances 0.000 title claims abstract description 60
- 238000012360 testing method Methods 0.000 title claims abstract description 20
- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 238000002347 injection Methods 0.000 claims description 21
- 239000007924 injection Substances 0.000 claims description 21
- 238000000926 separation method Methods 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000007723 transport mechanism Effects 0.000 abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a steel pipe hydrostatic test device, includes the material loading frame that has the fender material piece, a plurality of establish material loading frame one side is used for supporting single steel pipe clamping seat, be used for keeping the steel pipe straightness accuracy and with the steel pipe is sent into from the material loading frame the transport mechanism of clamping seat, establish the support of clamping seat one side, establish be used for sealing the feed sealing mechanism of steel pipe port and be used for the tip positioning mechanism of fixed steel pipe tip on the support. According to the utility model, by arranging the feeding sealing mechanism, the impact force of the steel pipe and the sealing ring at the moment of contact is balanced, meanwhile, the impact force of the sealing ring received by water is kept uniform, the sealing performance is good, the service life of the sealing ring is long, frequent replacement is not needed, and the production efficiency is high; through setting up transport mechanism, keep the straightness of steel pipe, transport the steel pipe to the screens seat from the material loading frame simultaneously, need not artifical transport, improve production efficiency.
Description
Technical Field
The utility model relates to the technical field of stainless steel pipe production equipment, in particular to a steel pipe hydrostatic test device.
Background
The stainless steel tube hydrostatic test is a reliable test method for testing finished products of steel tubes, and can intuitively test whether the steel tubes have penetrability defects or not, and the existing steel tube hydrostatic test device is as in patent number
The hydraulic pressure test device for the stainless steel pipe comprises a pressure pump, wherein the pressure pump is connected with a high-pressure water inlet plug which can form a seal with one end of the stainless steel pipe; the sealing plug is sealed with the other end of the stainless steel tube; the high-pressure water inlet blocking head comprises an A cylinder body, a high-pressure water inlet is formed in the A cylinder body and is communicated with an A high-pressure water cavity in the A cylinder body, an A conical surface is formed in the outer side of the high-pressure water inlet, and an A sealing ring is correspondingly arranged at the A conical surface; the sealing plug comprises a B cylinder body, a B conical surface is arranged on the outer side of a B high-pressure water cavity in the B cylinder body, a B sealing ring is correspondingly arranged at the B conical surface, and a water outlet and a valve are correspondingly arranged on the B cylinder body. The utility model can carry out the hydrostatic test on the stainless steel tube without a special frame, and has the characteristics of simple and convenient operation. However, when the device is used for carrying out a hydraulic test, the instantaneous stress of the steel pipe in contact with the sealing ring is unbalanced, and meanwhile, the impact force of water in the steel pipe under a high-pressure state on the sealing ring is uneven, so that the sealing performance of the sealing ring is poor, the service life is short, frequent replacement is required, and the production efficiency is affected.
Disclosure of Invention
The utility model aims to provide a steel pipe hydrostatic test device, which solves the problems that when the existing steel pipe hydrostatic test device is used for hydrostatic test, the instantaneous stress of the steel pipe in contact with a sealing ring is unbalanced, meanwhile, the impact force of water in the steel pipe under a high pressure state on the sealing ring is uneven, the sealing performance of the sealing ring is poor, the service life is short, frequent replacement is needed, and the production efficiency is affected.
The technical scheme of the utility model is as follows: the utility model provides a steel pipe hydrostatic test device, includes the material loading frame that has the fender material piece, a plurality of establish material loading frame one side is used for supporting single steel pipe clamping seat, be used for keeping the steel pipe straightness accuracy and with the steel pipe is sent into from the material loading frame the transport mechanism of clamping seat, establish the support of clamping seat one side, establish be used for sealing the feed sealing mechanism of steel pipe port and be used for the tip positioning mechanism of fixed steel pipe tip on the support.
Preferably, the feeding sealing mechanism comprises a sleeve seat, sealing power equipment, a connecting seat, a mounting groove, a water injection pipe, a sealing ring, a filtering strip, a fixing strip, a conical guide head and a stress balancing part, wherein the sealing power equipment is fixedly connected with the support and used for driving the sleeve seat to move, the connecting seat is in threaded connection with the sleeve seat and provided with a through hole, the mounting groove is arranged on one side of the connecting seat and is communicated with the through hole, the water injection pipe extends into the sleeve seat and extends towards the through hole and the mounting groove, the sealing ring is arranged at a port of the water injection pipe, the filtering strip and the fixing strip are arranged at a port of the water injection pipe at intervals, the conical guide head is arranged on the fixing strip, and the stress balancing part is used for balancing stress of the sealing ring.
Preferably, the stress balance part comprises an inner bearing sleeve, an outer bearing sleeve, bearing beads, a plurality of right circular arc concave plates, a reverse circular arc concave plate, a linkage plate and guide balls, wherein the inner bearing sleeve is arranged in the mounting groove and is in threaded connection with the port of the water injection pipe, the outer bearing sleeve is sleeved with the inner bearing sleeve, the bearing beads are arranged between the inner bearing sleeve and the outer bearing sleeve, the right circular arc concave plates and the reverse circular arc concave plates are distributed along the circumferential surface of the outer bearing sleeve and are arranged in a staggered mode relatively, the linkage plate is connected with the right circular arc concave plates and the reverse circular arc concave plates, the guide balls are arranged on the outer circumferential surface of the right circular arc concave plates and the outer circumferential surface of the reverse circular arc concave plates, a guide channel is formed among the right circular arc concave plates, the reverse circular arc concave plates and the inner wall of the mounting groove, and the length extending directions of the right circular arc concave plates and the reverse circular arc concave plates are opposite.
Preferably, the cross section of the linkage plate is V-shaped.
Preferably, the included angle of the axial axes of the positive arc concave plate and the negative arc concave plate is 30-60 degrees.
Preferably, the water injection pipe is sleeved with a rotary sleeve fixedly connected with the outer bearing sleeve, and the rotary sleeve is provided with a plurality of auxiliary rods.
Preferably, the conveying mechanism comprises a cross rod, a plurality of lifting plates arranged on the cross rod, a separation pushing block which is arranged at one end of the lifting plates close to the feeding frame and is provided with a tip, a stop block arranged at one end of the lifting plates close to the clamping seat, a telescopic rod fixedly connected with the cross rod, and lifting power equipment for pushing the telescopic rod to stretch.
Preferably, the plurality of stoppers are on the same plane near the surface of the separation pushing block, and when the stoppers are lowered to be level with or lower than the clamping seats, the stoppers extend between the adjacent clamping seats.
Preferably, the clamping seat comprises a base, a supporting seat fixedly connected with the base and provided with an arc groove, an import plate arranged on the supporting seat and close to the conveying mechanism, and an export plate arranged on the supporting seat and far away from the conveying mechanism, wherein an entrance and an exit communicated with the arc groove are arranged between the import plate and the export plate.
Preferably, the end positioning mechanism comprises an upper clamping block arranged at the top of the bracket and provided with an upper clamping groove, positioning power equipment used for driving the upper clamping block to move up and down, and a lower clamping block arranged at the bottom of the bracket and provided with a lower clamping groove, wherein a clamping channel is formed in front of the upper clamping groove and the lower clamping groove, and the axial axis of the clamping channel coincides with the axial axis of the water injection pipe.
The utility model has the beneficial effects that:
according to the utility model, by arranging the feeding sealing mechanism, the impact force of the steel pipe and the sealing ring at the moment of contact is balanced, meanwhile, the impact force of the sealing ring received by water is kept uniform, the sealing performance is good, the service life of the sealing ring is long, frequent replacement is not needed, and the production efficiency is high; through setting up transport mechanism, keep the straightness of steel pipe, transport the steel pipe to the screens seat from the material loading frame simultaneously, need not artifical transport, improve production efficiency.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a side view of the present utility model;
FIG. 3 is a schematic view of a feed seal mechanism and an end positioning mechanism;
FIG. 4 is a side view of the feed seal mechanism and end positioning mechanism;
FIG. 5 is a schematic view of a force balance section;
FIG. 6 is an enlarged schematic view at A;
FIG. 7 is a side view of a force balance;
FIG. 8 is a top view of a positive arc recess plate and a negative arc recess plate;
Detailed Description
The utility model is further illustrated by way of example with reference to the accompanying drawings.
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
The embodiment is shown in fig. 1 and 2, and the steel pipe hydrostatic test device comprises a feeding frame 1 with a baffle block 101, wherein the baffle block 101 is fixedly connected with the feeding frame 1 through bolts, and the included angle between the baffle block 101 and the feeding frame 1 can be adjusted according to the diameter of steel pipes, so that the function of blocking steel pipes with different specifications is realized, a plurality of clamping seats 2 which are arranged on one side of the feeding frame 1 and are used for supporting single steel pipes, a conveying mechanism 4 which is used for keeping the straightness of the steel pipes and conveying the steel pipes from the feeding frame 1 into the clamping seats 2, a bracket 3 which is arranged on one side of the clamping seats 2, a feed sealing mechanism 5 which is arranged on the bracket 3 and is used for sealing ports of the steel pipes, and an end positioning mechanism 6 which is used for fixing ends of the steel pipes.
As shown in fig. 3 and 4, the feeding sealing mechanism 5 includes a sleeve seat 501, a sealing power device 508 fixedly connected with the bracket 3 and used for driving the sleeve seat 501 to move, where the sealing power device 508 is implemented by an oil cylinder, a connecting seat 503 screwed with the sleeve seat 501 and having a through hole 502, a mounting groove 504 provided on one side of the connecting seat 503 and communicated with the through hole 502, a water injection pipe 505 extending into the sleeve seat 501 and toward the through hole 502 and the mounting groove 504, and a sealing ring 506 provided on the water injection pipe 505, and preferably, the sealing ring 506 is implemented by a YX polyurethane sealing ring, a filter strip 5011 and a fixing strip 509 provided at a port of the water injection pipe 505 at intervals, a conical guide head 5010 provided on the fixing strip 509, and a stress balancing portion 507 for balancing the impact force applied on the sealing ring 506 by a steel pipe at the moment of contact between the sealing ring 506 and the steel pipe, and the sealing ring 506 is kept uniform in stress, so that the sealing property of the sealing ring 506 is improved.
As shown in fig. 5, 6, 7 and 8, the force balance portion 507 includes an inner bearing sleeve 5071 disposed in the mounting groove 504 and screwed to the port of the water injection pipe 505, an outer bearing sleeve 5072 sleeved on the inner bearing sleeve 5071, a bearing bead 5073 disposed between the inner bearing sleeve 5071 and the outer bearing sleeve 5072, a plurality of front circular arc concave plates 5074 and opposite circular arc concave plates 5075 distributed along the circumferential surface of the outer bearing sleeve 5072 and disposed in a staggered manner, a linkage plate 5076 connecting the front circular arc concave plates 5074 and the opposite circular arc concave plates 5075, and guide balls 50710 disposed on the outer circumferential surfaces of the front circular arc concave plates 5074 and the opposite circular arc concave plates 5075, wherein a guide channel 5077 is formed between the front circular arc concave plates 5074, the opposite circular arc concave plates 5075 and the inner wall of the mounting groove 504, and the lengths of the front circular arc concave plates 5074 and the opposite circular arc concave plates 5075 are extended in opposite directions. The cross section of the linkage plate 5076 is V-shaped. The axial axis included angle of the positive arc concave plate 5074 and the negative arc concave plate 5075 is 30-60 degrees. The water injection pipe 505 is sleeved with a rotating sleeve 5078 fixedly connected with the outer bearing sleeve 5072, the rotating sleeve 5078 is provided with a plurality of auxiliary rods 5079, the auxiliary rods 5079 are divided into four rows, each row is three, the length of the auxiliary rods is gradually lengthened along with the length of the auxiliary rods far away from the outer bearing sleeve 5072, after the steel pipe enters the mounting groove 504, the right circular arc concave plate 5074 is extruded by the steel pipe, the linkage plate 5076 moves towards the direction of the water injection pipe 505 to drive the reverse circular arc concave plate 5075 to deform, so that the right circular arc concave plate 5074 and the reverse circular arc concave plate 5075 are propped against the inner wall of the steel pipe and stably guide the sealing ring 506, when water impacts the right circular arc concave plate 5074 and the reverse circular arc concave plate 5075, the water flows out from the diversion channel 7056, the rotating sleeve 5078 can be driven to rotate simultaneously, the high-pressure water flow is scattered through the auxiliary rods 5079, the stability of the water is ensured, the water is uniformly impacted to the sealing ring 506 is prolonged, the service life of the sealing ring 506 is prolonged, and the production efficiency is improved.
As shown in fig. 1 and 2, the conveying mechanism 4 includes a cross bar 401, a plurality of lifting plates 402 provided on the cross bar 401, preferably, the lifting plates 402 are inclined toward the side close to the clamping seat 2, a separation pushing block 403 provided on one end of the lifting plates 402 close to the feeding frame 1 and having a tip 4031, where the tip 4031 is used for separating adjacent steel pipes and separating a single steel pipe from the feeding frame 1, a stopper 404 provided on one end of the lifting plates 402 close to the clamping seat 2, a telescopic rod 405 fixedly connected to the cross bar 401, and a lifting power device 406 for pushing the telescopic rod 405 to stretch, and the lifting power device 406 is implemented by an air cylinder. The two stoppers 404 are located on the same plane near the separation pushing block 403, and when the two stoppers 404 are lowered to be level with the clamping seat 2 or lower than the clamping seat 2, the two stoppers 404 extend between the adjacent clamping seats 2, and the two stoppers 404 are located on the same line with the contact points of the two steel pipes, so that the straightness of the steel pipes is ensured, and the steel pipes smoothly enter the clamping seat 2. The clamping seat 2 comprises a base 201, a supporting seat 203 fixedly connected with the base 201 and provided with an arc-shaped groove 202, a guide-in plate 204 arranged on the supporting seat 203 and close to the conveying mechanism 4, and a guide-out plate 205 arranged on the supporting seat 203 and far away from the conveying mechanism 4, wherein an inlet 206 communicated with the arc-shaped groove 202 is arranged between the guide-in plate 204 and the guide-out plate 205, when a stop block 404 is lowered to be flush with the guide-in plate 204 and enters between adjacent clamping seats 2, a steel pipe falls into the guide-in plate 204 and rolls into the arc-shaped groove 202 through the inlet 206, after detection is completed, the steel pipe can be moved out of the arc-shaped groove 202 through the inlet 206 by manual or lifting equipment, and leaves the clamping seat 2 under the guidance of the guide-out plate 205.
As shown in fig. 1 and 2, in order to make the feed sealing mechanism 5 smoothly enter the port of the steel pipe, the end positioning mechanism 6 may have a structure including an upper clamping block 601 provided at the top of the bracket 3 and having an upper clamping groove 602, a positioning power device 603 for driving the upper clamping block 601 to move up and down, and a lower clamping block 605 provided at the bottom of the bracket 3 and having a lower clamping groove 604, wherein a clamping channel 606 is formed before the upper clamping groove 602 and the lower clamping groove 604, and an axial axis of the clamping channel 606 coincides with an axial axis of the water injection pipe 505.
Claims (4)
1. The utility model provides a steel pipe hydrostatic test device which characterized in that: the filter comprises a feeding frame (1) with a baffle block (101), a plurality of clamping seats (2) arranged on one side of the feeding frame (1) and used for supporting single steel pipes, a conveying mechanism (4) used for keeping the straightness of the steel pipes and conveying the steel pipes from the feeding frame (1) into the clamping seats (2), a support (3) arranged on one side of the clamping seats (2), a feeding sealing mechanism (5) arranged on the support (3) and used for sealing a steel pipe port and an end positioning mechanism (6) used for fixing the end part of the steel pipes, wherein the feeding sealing mechanism (5) comprises a sleeve seat (501), a sealing power device (508) fixedly connected with the support (3) and used for driving the sleeve seat (501) to move, a connecting seat (503) which is in threaded connection with the sleeve seat (501) and is provided with a through hole (502), a mounting groove (504) arranged on one side of the connecting seat (503) and communicated with the through hole (502), a water injection pipe (505) extending into the sleeve seat (501) and extending towards the through hole (502) and the mounting groove (504), a water injection pipe (505) arranged on the side of the support (1), a water injection pipe (505) and a sealing strip (509) arranged at the port (505) and a filter strip (509) arranged at the end part) of the water injection port (505) and a filter rod (1) to be fixed The conical guide head (5010) arranged on the fixed strip (509) and the stress balance part (507) used for balancing stress of the sealing ring (506), the stress balance part (507) comprises an inner bearing sleeve (5071) arranged in the mounting groove (504) and screwed with a port of the water injection pipe (505), an outer bearing sleeve (5072) sleeved on the inner bearing sleeve (5071), bearing beads (5073) arranged between the inner bearing sleeve (5071) and the outer bearing sleeve (5072), a plurality of right circular arc concave plates (5074) and anti-circular arc concave plates (5075) distributed along the circumferential surface of the outer bearing sleeve (5072) and arranged relatively in a staggered manner, a linkage plate (5076) connected with the right circular arc concave plates (5074) and the anti-circular arc concave plates (5075), guide balls (50710) arranged on the outer circumferential surface of the right circular arc concave plates (5074) and the outer circumferential surface of the anti-circular arc concave plates (5075), the right circular arc concave plates (5074), the linkage plate (5075) and the opposite direction of the cross section between the right circular arc concave plates (5075) and the opposite circular arc concave plates (5075), and the cross section between the right circular arc concave plates (5075) and the opposite axial concave plates (5075), and the cross section between the two opposite circular arc plates (5075) and the opposite axial concave plates (50). The water injection pipe (505) is sleeved with a rotary sleeve (5078) fixedly connected with an outer bearing sleeve (5072), a plurality of auxiliary rods (5079) are arranged on the rotary sleeve (5078), the conveying mechanism (4) comprises a cross rod (401), a plurality of lifting plates (402) arranged on the cross rod (401), a separation pushing block (403) which is arranged on the lifting plates (402) and is close to one end of the feeding frame (1) and provided with a tip (4031), a stop block (404) which is arranged on the lifting plates (402) and is close to one end of the clamping seat (2), a telescopic rod (405) fixedly connected with the cross rod (401) and lifting power equipment (406) for pushing the telescopic rod (405) to stretch out and draw back.
2. A steel pipe hydrostatic test unit according to claim 1, wherein: the baffle blocks (404) are positioned on the same plane near one surface of the separation pushing block (403), and when the baffle blocks (404) are lowered to be flush with the clamping seat (2) or lower than the clamping seat (2), the baffle blocks (404) extend into between the adjacent clamping seats (2).
3. A steel pipe hydrostatic test unit according to claim 1, wherein: the clamping seat (2) comprises a base (201), a supporting seat (203) fixedly connected with the base (201) and provided with an arc-shaped groove (202), a guide-in plate (204) arranged on the supporting seat (203) and close to the conveying mechanism (4), and a guide-out plate (205) arranged on the supporting seat (203) and far away from the conveying mechanism (4), wherein an inlet and outlet (206) communicated with the arc-shaped groove (202) are arranged between the guide-in plate (204) and the guide-out plate (205).
4. A steel pipe hydrostatic test unit according to claim 1, wherein: the end positioning mechanism (6) comprises an upper clamping block (601) arranged at the top of the support (3) and provided with an upper clamping groove (602), positioning power equipment (603) used for driving the upper clamping block (601) to move up and down, and a lower clamping block (605) arranged at the bottom of the support (3) and provided with a lower clamping groove (604), wherein a clamping channel (606) is formed before the upper clamping groove (602) and the lower clamping groove (604), and the axial axis of the clamping channel (606) coincides with the axial axis of the water injection pipe (505).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910345930.3A CN109916732B (en) | 2019-04-26 | 2019-04-26 | Steel pipe hydrostatic test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910345930.3A CN109916732B (en) | 2019-04-26 | 2019-04-26 | Steel pipe hydrostatic test device |
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| Publication Number | Publication Date |
|---|---|
| CN109916732A CN109916732A (en) | 2019-06-21 |
| CN109916732B true CN109916732B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910345930.3A Active CN109916732B (en) | 2019-04-26 | 2019-04-26 | Steel pipe hydrostatic test device |
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| CN (1) | CN109916732B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112718570A (en) * | 2021-02-04 | 2021-04-30 | 肖金坚 | Hardness testing device is used in automobile bottom plate processing |
| CN113063668B (en) * | 2021-03-20 | 2022-11-18 | 营口市锅炉压力容器检验研究有限公司 | Equipment and method for testing pressure resistance of stainless steel pipe fitting production |
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Address after: 313023 east side of North Road, Dai Xi Town, Huzhou, Zhejiang Applicant after: HUZHOU HUATE STAINLESS STEEL TUBES MANUFACTURING Co.,Ltd. Address before: 313009 Zhong Jiadu, Zhaojiadu Village, Shuanglin Town, Nanxun District, Huzhou City, Zhejiang Province Applicant before: HUZHOU HUATE STAINLESS STEEL TUBES MANUFACTURING Co.,Ltd. |
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