CN114235589B - Clamp of pipe hydrostatic testing machine - Google Patents
Clamp of pipe hydrostatic testing machine Download PDFInfo
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- CN114235589B CN114235589B CN202111492207.1A CN202111492207A CN114235589B CN 114235589 B CN114235589 B CN 114235589B CN 202111492207 A CN202111492207 A CN 202111492207A CN 114235589 B CN114235589 B CN 114235589B
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- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 19
- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 24
- 230000002457 bidirectional effect Effects 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009530 blood pressure measurement Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000004308 accommodation Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Jigs For Machine Tools (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The application relates to the technical field of pipe pressure measurement, in particular to a clamp of a pipe hydrostatic testing machine, which comprises a first clamp body, a second clamp body and a liquid inlet pipe, wherein the first clamp body is arranged at one end of a pipe, and the second clamp body is arranged at the other end of the pipe; the first clamp body and the second clamp body comprise a main body and a clamping and sealing assembly, a placing groove for placing a pipe is formed in the main body, and the cross section of the placing groove is larger than that of the pipe; the clamping sealing assembly is arranged on the main body and abuts against the pipe; the liquid inlet pipe is arranged on the main body of the first clamp body and is communicated with the pipe. The application has the effect of improving the application range of the clamp.
Description
Technical Field
The application relates to the technical field of pipe pressure measurement, in particular to a clamp of a pipe hydrostatic testing machine.
Background
The pipe hydrostatic test is used for measuring the pressure-resistant damage time or the maximum pressure value of instantaneous explosion of various pipes such as thermoplastic pipes, composite pipes, aluminum-plastic composite pipes and the like under constant internal pressure and constant temperature for a long time, and is an important experiment for examining the performance of plastic pipes.
At present, chinese patent publication No. CN104931340A discloses a sealing clamp for hydrostatic test of a pipe, which comprises a front end plug, a rear end plug, a pull rod and a sealing ring, wherein the front end plug is provided with a triangular threaded hole and a pipe threaded hole; the front end plugging and the rear end plugging are provided with flange holes, and the inner wall of the front end plugging and the rear end plugging are provided with independent grooves; a sealing ring is embedded in the independent groove; the pull rod sequentially passes through the corresponding flange holes on the front end plug and the rear end plug, and then the two ends of the pull rod are fixed by nuts.
In carrying out the present application, the inventors have found that at least the following problems exist in this technology: in order to reduce the leakage of medium water, the inner wall of the front end plug and the inner wall of the rear end plug are both abutted against the side wall of the pipe; therefore, when the diameter of the pipe changes, the front end plug and the rear end plug need to be replaced, so that the application range of the clamp is relatively low.
Disclosure of Invention
In order to improve the application range of the clamp, the application provides the clamp of the pipe hydrostatic testing machine.
The application provides a clamp of a pipe hydrostatic testing machine, which adopts the following technical scheme:
The clamp of the pipe hydrostatic testing machine comprises a first clamp body, a second clamp body and a liquid inlet pipe, wherein the first clamp body is arranged at one end of a pipe, and the second clamp body is arranged at the other end of the pipe; the first clamp body and the second clamp body comprise a main body and a clamping and sealing assembly, a placing groove for placing a pipe is formed in the main body, and the cross section of the placing groove is larger than that of the pipe; the clamping sealing assembly is arranged on the main body and abuts against the pipe; the liquid inlet pipe is arranged on the main body of the first clamp body and is communicated with the pipe.
By adopting the technical scheme, the cross section of the placing groove is larger than that of the pipe, so that pipes with different diameters can be placed in the placing groove; when the pipe abuts against the bottom wall of the placing groove, the clamping sealing assembly abuts against the pipe; finally, medium water is introduced into the liquid inlet pipe towards the inside of the pipe, and the arranged clamping and sealing assembly can reduce the outflow of the medium water from the main body; the clamp can clamp pipes with different diameters, so that the application range is improved.
Optionally, the clamping sealing assembly comprises a clamping air cushion, an air inlet pipe and an air pump, an annular groove is formed in the side wall of the placing groove, the clamping air cushion is arranged on the side wall of the annular groove, one end of the air inlet pipe is connected with the clamping air cushion, and the other end of the air inlet pipe is located outside the main body; the air pump is connected with one end of the air inlet pipe, which is far away from the clamping air cushion.
Through adopting above-mentioned technical scheme, after the diapire of standing groove is contradicted to tubular product, start the air pump, the air pump is towards the air feed in the intake pipe, and the gas in the intake pipe will enter into in the centre gripping air cushion, and the centre gripping air cushion can take place deformation, makes the centre gripping air cushion support tightly to be located the tubular product of standing groove.
Optionally, the main body is provided with a limiting mechanism, the limiting mechanism comprises a connecting plate, a limiting bolt, a limiting plate and a guide block, the main body is provided with a limiting groove communicated with the placing groove, and the side wall of the placing groove is provided with a guide groove; the connecting plate is clamped in the limiting groove, and the limiting bolt penetrates through the limiting plate to be in threaded connection with the main body; the limiting plate is arranged on the connecting plate, and one end of the limiting plate, which is far away from the connecting plate, is abutted against the clamping air cushion; the guide block is arranged on the limiting plate and is slidably arranged with the guide groove.
By adopting the technical scheme, the limiting plate is arranged to abut against the clamping air cushion, so that the phenomenon that the clamping air cushion is damaged due to the fact that the pipe is impacted on the clamping air cushion when the pipe enters the placing groove can be reduced; when the pipe is positioned in the placing groove, the limiting bolt is firstly separated from the main body, then the connecting plate moves in the direction away from the main body, and the limiting plate on the connecting plate can not contact the clamping air cushion any more and is taken out from the placing groove of the main body.
Optionally, an adjusting groove communicated with the limiting groove is formed in the main body, an ejection mechanism is arranged on the main body, the ejection mechanism comprises an ejection block, an adjusting shaft, an adjusting gear and an adjusting rack, and the ejection block is slidably arranged in the adjusting groove and can abut against the connecting plate; the adjusting shaft is rotatably arranged on the main body, and one end of the adjusting shaft is positioned in the adjusting groove; the adjusting gear is arranged on the adjusting shaft positioned in the adjusting groove; the adjusting rack is arranged on the ejection block and meshed with the adjusting gear.
Through adopting above-mentioned technical scheme, when the distance between tubular product lateral wall and the standing groove lateral wall is comparatively little, rotate the regulating spindle, the epaxial adjusting gear of regulating drives the adjusting rack and removes, and the adjusting rack drives ejecting piece motion, and ejecting piece contradicts the connecting plate and drives the connecting plate motion, makes the connecting plate motion go out the limit groove, and finally operating personnel takes the connecting plate again, makes the limit board motion go out the main part.
Optionally, the main body includes a first connector, a second connector, a connecting bolt and a nut, a containing groove is formed on the first connector, a first through hole is formed on the second connector, and the containing groove and the first through hole jointly form the placing groove; the end part of the pipe penetrates through the first through hole and is positioned in the accommodating groove, and the liquid inlet pipe is arranged on the first connecting body of the first clamp body; the clamping sealing assembly is arranged on the second connecting body; the first connector is provided with a second through hole, and the second connector is provided with a third through hole; the connecting bolt sequentially penetrates through the third through hole and the second through hole, a nut of the connecting bolt abuts against the second connecting body, and the nut is in threaded connection with one end of the connecting bolt penetrating through the second through hole.
By adopting the technical scheme, the second connector abuts against the first connector, then the connecting bolt passes through the third through hole and the second through hole, then the nut is in threaded connection with one end of the connecting bolt passing through the second through hole, the nut abuts against the first connector, and the nut of the connecting bolt abuts against the second connector; then enabling the end part of the pipe to penetrate through the first through hole and abut against the bottom wall of the accommodating groove; and finally, starting the clamping sealing assembly to clamp the pipe positioned in the first through hole.
Optionally, the second connector is provided with a reinforcing mechanism, the reinforcing mechanism includes a fixed block, a mounting bolt, a reinforcing block and an adjusting component, a fourth through hole is formed in the fixed block, the outer side wall of the second connector abuts against the side wall of the fourth through hole, and the mounting bolt penetrates through the fixed block to be in threaded connection with the second connector; the two reinforcing blocks are arranged, the adjusting assembly comprises an adjusting motor and a two-way screw rod, the adjusting motor is arranged on the fixed block, the two-way screw rod is arranged on the adjusting motor, the two-way screw rod penetrates through the two reinforcing blocks, and the two reinforcing blocks are respectively connected with two ends of the two-way screw rod in a threaded mode.
By adopting the technical scheme, the outer side wall of the second connector is firstly abutted against the side wall of the fourth through hole, and then the mounting bolt penetrates through the fixed block to be in threaded connection with the second connector; after the pipe passes through the first through hole and is located the holding tank, the output shaft of the regulating motor drives the bidirectional screw rod to rotate, and the bidirectional screw rod drives the two reinforcing blocks to move in opposite directions, so that the two reinforcing blocks abut against the pipe, and the stability of the pipe on the clamp is improved.
Optionally, the device further comprises an adjusting mechanism, wherein the adjusting mechanism comprises an adjusting rod, an adjusting block and an adjusting assembly, a first sliding groove is formed in the adjusting rod, and the adjusting block is slidably arranged in the first sliding groove; the main body of the first clamp body is connected to the adjusting rod, and the main body of the second clamp body is arranged on the adjusting block; the adjusting assembly comprises an adjusting motor and an adjusting screw rod, the adjusting screw rod is rotatably arranged in the first sliding groove, and the adjusting screw rod penetrates through the adjusting block to be in threaded connection with the adjusting block; the adjusting motor is arranged on the adjusting rod and is connected with the adjusting screw.
By adopting the technical scheme, one end of the pipe is firstly introduced into the placing groove of the first clamp body, then the adjusting motor is started, the adjusting screw rod drives the adjusting block to move, the adjusting block drives the main body of the second clamp body to move towards the direction close to the first clamp body, the other end of the pipe is introduced into the placing groove of the second clamp body, and the two ends of the pipe can better abut against the bottom wall of the placing groove; the adjusting mechanism can better enable the first clamp body and the second clamp body to clamp the pipe.
Optionally, a connection mechanism connected with the main body is arranged on the adjusting block, the connection mechanism comprises a clamping block and a fixing bolt, the clamping block is arranged on the main body, and a clamping groove clamped with the clamping block is formed in the adjusting block; the fixing bolt penetrates through the adjusting block and is in threaded connection with the clamping block located in the clamping groove.
By adopting the technical scheme, because the medium water enters the pipe from the liquid inlet pipe, the medium water can impact the second clamp body; when the second clamp body is damaged, the fixing bolt is rotated first, so that the fixing bolt is separated from the clamping block, and then the clamping block is separated from the clamping groove on the adjusting block, so that the second clamp body is maintained.
Optionally, the adjusting rod is provided with a supporting mechanism, the supporting mechanism comprises a connecting block, a sliding block, a supporting block and a lifting assembly, the connecting block is arranged on the adjusting rod, a second sliding groove is formed in the connecting block, and the sliding block is slidably arranged in the second sliding groove; the supporting block is arranged on the sliding block; the lifting assembly comprises a lifting motor, an adjusting gear and an adjusting rack, the lifting motor is arranged on the connecting block, and the adjusting gear is arranged on the lifting motor; the adjusting rack is arranged on the sliding block and meshed with the adjusting gear.
By adopting the technical scheme, the pipe to be detected is placed on the supporting block, then the adjusting motor is started, the pipe enters the placing groove of the second clamp body, and one end of the pipe is abutted against the bottom wall of the placing groove of the second clamp body; then under the movement of the second clamp body, the pipe is moved towards the direction close to the first clamp body, and the other end of the pipe is abutted against the bottom wall of the placing groove of the first clamp body; when the diameter of the pipe changes, the lifting motor is started, the adjusting gear on the lifting motor drives the adjusting rack to move, the adjusting rack drives the sliding block to slide, and the position of the supporting block on the sliding block changes; therefore, the supporting mechanism can reduce the operation of installing the pipe by an operator, thereby improving the installation efficiency of the clamp.
In summary, the application comprises the following beneficial technical effects:
1. the arranged clamp can clamp pipes with different diameters, so that the application range is improved;
2. The stability of the pipe on the clamp can be improved by the aid of the reinforcing mechanism;
3. The support mechanism that sets up can reduce the operation of operating personnel installation tubular product to improve the installation effectiveness of anchor clamps.
Drawings
FIG. 1 is a schematic view of a clamp of a pipe hydrostatic testing machine in an embodiment of the application;
FIG. 2 is an exploded view of a second clamp body according to an embodiment of the present application;
FIG. 3 is a schematic view of a clamping seal assembly according to an embodiment of the application;
FIG. 4 is a schematic structural view of an adjusting mechanism according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a lifting assembly according to an embodiment of the application.
Reference numerals: 11. a first clamp body; 12. a second clamp body; 13. a liquid inlet pipe; 2. a main body; 21. a first connecting body; 211. a receiving groove; 212. a second through hole; 22. a second connector; 221. a first through hole; 23. a connecting bolt; 24. a nut; 3. clamping the sealing assembly; 31. clamping the air cushion; 32. an air inlet pipe; 33. an air pump; 4. a limiting mechanism; 41. a connecting plate; 42. defining a bolt; 43. a limiting plate; 44. a guide block; 5. an ejection mechanism; 51. an ejection block; 52. an adjusting shaft; 53. an adjusting gear; 54. adjusting the rack; 6. a reinforcement mechanism; 61. a fixed block; 611. a fourth through hole; 62. installing a bolt; 63. a reinforcing block; 64. an adjustment assembly; 641. adjusting a motor; 642. a bidirectional screw; 7. an adjusting mechanism; 71. an adjusting lever; 711. a first chute; 72. adjusting the block; 73. an adjustment assembly; 731. adjusting a motor; 732. adjusting a screw; 8. a connecting mechanism; 81. a clamping block; 82. a fixing bolt; 9. a support mechanism; 91. a connecting block; 911. a second chute; 92. a slide block; 93. a support block; 94. a lifting assembly; 941. a lifting motor; 942. an adjusting gear; 943. adjusting a rack; 95. and (5) supporting the rod.
Detailed Description
The application is described in further detail below with reference to fig. 1-5.
The embodiment of the application discloses a clamp of a pipe hydrostatic testing machine.
Referring to fig. 1, a clamp of a pipe hydrostatic testing machine includes a first clamp body 11, a second clamp body 12, and an adjusting mechanism 7 connecting the first clamp body 11 and the second clamp body 12; the first clamp body 11 is provided with a liquid inlet pipe 13.
Clamping one end of a pipe to be detected by using a first clamp body 11, and clamping the other end of the pipe by using a second clamp body 12; then medium water is introduced into the pipe through the liquid inlet pipe 13.
Referring to fig. 1 and 2, each of the first and second clamp bodies 11 and 12 includes a main body 2, the main body 2 includes a first connecting body 21, and an accommodating groove 211 is formed at one end of the first connecting body 21 along a length direction thereof; the second connector 22 is disposed at one side of the first connector 21, and the second connector 22 is provided with a first through hole 221 along a length direction thereof. The first connector 21 is provided with a second through hole 212, and the second connector 22 is provided with a third through hole; the second connecting body 22 is provided with a connecting bolt 23, and one end of the connecting bolt 23, which is far away from the screw cap, sequentially passes through a third through hole of the second connecting body 22 and a second through hole 212 of the first connecting body 21; one end of the connecting bolt 23, which passes through the second through hole 212, is in threaded connection with a nut 24, the nut 24 abuts against the first connecting body 21, and the nut of the connecting bolt 23 abuts against the second connecting body 22. The liquid inlet pipe 13 is disposed on the first connecting body 21 of the first clamp body 11, and the liquid inlet pipe 13 communicates with the accommodation groove 211 of the first clamp body 11.
The axis of the first through hole 221 coincides with the axis of the accommodation groove 211, and the first through hole 221 of the second connecting body 22 and the accommodation groove 211 of the first connecting body 21 together form the accommodation groove 211; the end of the pipe passes through the first through hole 221 of the second connector 22 to abut against the bottom wall of the accommodating groove 211 of the first connector 21.
Referring to fig. 2 and 3, an annular groove communicated with the first through hole 221 is formed in the second connecting block 91, a clamping sealing assembly 3 is arranged on the second connecting block 91, the clamping sealing assembly 3 comprises a clamping air cushion 31 fixedly connected to the bottom wall of the annular groove, an air inlet pipe 32 is connected to the clamping air cushion 31, one end, far away from the clamping air cushion 31, of the air inlet pipe 32 penetrates out of the second connecting body 22, an air pump 33 is arranged on one side of the second connecting body 22, and the air pump 33 is connected with one end, far away from the clamping air cushion 31, of the air inlet pipe 32.
When the pipe abuts against the bottom wall of the accommodating groove 211 of the first connecting body 21, the air pump 33 is started, the air pump 33 supplies air to the air inlet pipe 32, the air in the air inlet pipe 32 enters the clamping air cushion 31, and the clamping air cushion 31 deforms, so that the clamping air cushion 31 abuts against the pipe in the first through hole 221.
Referring to fig. 2 and 3, a defining groove communicating with the first through hole 221 is opened at an end of the second connection block 91 remote from the first connection block 91, and a guide groove communicating with the defining groove is opened at a sidewall of the first through hole 221 in a length direction thereof; the second connecting block 91 is provided with a limiting mechanism 4, the limiting mechanism 4 comprises a connecting plate 41 clamped in the limiting groove, the connecting plate 41 is integrally provided with a limiting plate 43, and one end of the limiting plate 43 far away from the connecting plate 41 is abutted against the clamping air cushion 31; a guide block 44 is fixedly connected to the limiting plate 43, and the guide block 44 is slidably arranged in the guide groove; the connection plate 41 is provided with a limiting bolt 42 threaded through the connection plate 41 with the second connection body 22.
Firstly, the limiting plate 43 enters the first through hole 221 of the second connecting body 22, and the guide block 44 slides into the guide groove of the second connecting plate 41; the limiting plate 43 is then brought into abutment against the clamping cushion 31, the connecting plate 41 is in the limiting groove of the second connecting body 22, and finally the limiting bolt 42 is screwed through the connecting plate 41 with the second connecting body 22.
Referring to fig. 2 and 3, in order to take out the limiting plate 43 from the second connector 22, an ejector mechanism 5 is provided on the second connector 22, an adjusting groove communicating with the limiting groove is provided on the second connector 22, the ejector mechanism 5 includes an ejector block 51 slidingly connected in the adjusting groove, and the ejector block 51 can abut against the connecting plate 41 and drive the connecting plate 41 to move; the second connector 22 is rotatably connected with an adjusting shaft 52, one end of the adjusting shaft 52 is positioned in the adjusting groove, and an adjusting gear 53 is connected on the adjusting shaft 52 positioned in the adjusting groove in a key way; the ejector block 51 is integrally provided with an adjusting rack 54 engaged with the adjusting gear 53.
After the air cushion 31 is clamped, the adjusting shaft 52 is rotated, the adjusting shaft 52 drives the adjusting gear 53 to rotate, the adjusting gear 53 drives the adjusting rack 54 to move, the adjusting rack 54 drives the ejection block 51 to move towards the direction close to the connecting plate 41, and the ejection block 51 abuts against the connecting plate 41 and drives the connecting plate 41 to move, so that the connecting plate 41 is separated from the limiting groove on the second connecting body 22, and the guide block 44 on the limiting plate 43 slides in the guide groove of the second connecting body 22; when the connecting plate 41 is separated from the limiting groove on the second connecting body 22, an operator takes the connecting plate 41 and drives the connecting plate 41 to move, so that the limiting plate 43 on the connecting plate 41 moves out of the second connecting body 22.
Referring to fig. 2 and 4, in order to improve stability of the pipe on the second connector 22, a reinforcing mechanism 6 is disposed at one end of the second connector 22 far from the first connector 21, the reinforcing mechanism 6 includes a fixing block 61, a fourth through hole 611 is formed in the fixing block 61, an outer side wall of the second connector 22 abuts against a side wall of the fourth through hole 611, and an installation bolt 62 penetrating through the fixing block 61 and in threaded connection with the second connector 22 is disposed on the fixing block 61; the fixed block 61 is provided with a third sliding groove, and two reinforcing blocks 63 are connected in a sliding manner in the third sliding groove. The fixed block 61 is provided with an adjusting component 64, the adjusting component 64 comprises a bidirectional screw 642 rotatably connected in the third chute, the bidirectional screw 642 passes through the two reinforcing blocks 63, and the two reinforcing blocks 63 are respectively connected with two ends of the bidirectional screw 642 in a threaded manner; the fixed block 61 is fixedly connected with an adjusting motor 641, and an output shaft of the adjusting motor 641 is connected with one end of a bidirectional screw 642.
After the pipe is clamped by the clamping air cushion 31, the adjusting motor 641 is started, the output shaft of the adjusting motor 641 drives the bidirectional screw 642 to rotate, and the bidirectional screw 642 drives the two reinforcing blocks 63 to move in opposite directions, so that the two reinforcing blocks 63 clamp the pipe.
Referring to fig. 2 and 4, the adjusting mechanism 7 includes an adjusting lever 71, a fixed block 61 of the first clamp body 11 is connected to one end of the adjusting lever 71 by a bolt, a first sliding groove 711 is provided at the other end of the adjusting lever 71, and an adjusting block 72 is slidably connected to the first sliding groove 711. The adjusting rod 71 is provided with an adjusting assembly 73, the adjusting assembly 73 comprises an adjusting screw 732 rotatably connected in a first chute 711, and the adjusting screw 732 penetrates through the adjusting block 72 and is in threaded connection with the adjusting block 72; an adjustment motor 731 is fixedly connected to the adjustment lever 71, and an output shaft of the adjustment motor 731 is connected to one end of an adjustment screw 732.
The adjusting block 72 is provided with a clamping groove, the fixing block 61 of the second clamp body 12 is provided with a connecting mechanism 8, the connecting mechanism 8 comprises a clamping block 81 fixedly connected to the fixing block 61, and the clamping block 81 is clamped with the clamping groove on the adjusting block 72; the adjusting block 72 is provided with a fixing bolt 82 which passes through the adjusting block 72 and is in threaded connection with a clamping block 81 positioned in the clamping groove.
Referring to fig. 4 and 5, the adjusting rod 71 is provided with a supporting mechanism 9, the supporting mechanism 9 includes a connecting block 91 fixedly connected to the adjusting rod 71, a second sliding groove 911 is formed in the connecting block 91, a sliding block 92 is slidably connected in the second sliding groove 911, a supporting rod 95 is fixedly connected to the sliding block 92, and a supporting block 93 is fixedly connected to one end, far away from the sliding block 92, of the supporting rod 95. The lifting assembly 94 is arranged on the connecting block 91, the lifting assembly 94 comprises a lifting motor 941 fixedly connected to the connecting block 91, and an output shaft of the lifting motor 941 is connected with an adjusting gear 942 in a key manner; an adjusting rack 943 engaged with the adjusting gear 942 is fixedly connected to the slider 92.
Firstly, starting a lifting motor 941 according to the diameter of a pipe, driving an adjusting gear 942 to rotate by an output shaft of the lifting motor 941, driving an adjusting rack 943 to move by the adjusting gear 942, driving a sliding block 92 to move by the adjusting rack 943, driving a supporting block 93 to move by a supporting rod 95 on the sliding block 92, placing the pipe on the supporting block 93, and enabling the axis of the pipe on the supporting block 93 to coincide with the axis of the first through hole 221 on the second connecting body 22.
Then, an adjusting motor 731 is started, an output shaft of the adjusting motor 731 drives an adjusting screw 732 to rotate, the adjusting screw 732 drives an adjusting block 72 to move, the adjusting block 72 drives a clamping block 81 to move, the clamping block 81 drives a fixed block 61 of the second clamp body 12 to move towards a direction approaching to the first clamp body 11, and one end of a pipe approaching to the second clamp body 12 passes through a first through hole 221 of the second clamp body 12 to abut against the bottom wall of the accommodating groove 211 of the second clamp body 12; then, the first connector 21 of the second clamp body 12 drives the pipe to move towards the direction close to the first clamp body 11, so that one end of the pipe away from the second clamp body 12 passes through the first through hole 221 of the first clamp body 11 and abuts against the bottom wall of the accommodating groove 211 of the first clamp body 11.
The implementation principle of the clamp of the pipe hydrostatic testing machine provided by the embodiment of the application is as follows: the position of the supporting block 93 is adjusted according to the diameter of the pipe to be detected; the tubing to be inspected is then placed on the support block 93.
Then, starting an adjusting motor 731 to enable one end of the pipe to be detected to be abutted against the bottom wall of the accommodating groove 211 of the second clamp body 12, and enabling the other end of the pipe to be abutted against the bottom wall of the accommodating groove 211 of the first clamp body 11; then the air pump 33 is started, so that the clamping air cushion 31 clamps the pipe; the limiting plate 43 is then removed from the second connector 22, the two reinforcing blocks 63 are then allowed to clamp the tubing, and finally medium water is introduced into the tubing through the feed pipe 13.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (6)
1. The clamp of the pipe hydrostatic testing machine comprises a first clamp body (11), a second clamp body (12) and a liquid inlet pipe (13), wherein the first clamp body (11) is arranged at one end of a pipe, and the second clamp body (12) is arranged at the other end of the pipe; the clamping device is characterized in that the first clamp body (11) and the second clamp body (12) comprise a main body (2) and a clamping sealing assembly (3), a placing groove for placing a pipe is formed in the main body (2), and the cross section of the placing groove is larger than that of the pipe; the clamping sealing assembly (3) is arranged on the main body (2) and abuts against the pipe; the liquid inlet pipe (13) is arranged on the main body (2) of the first clamp body (11) and is communicated with a pipe;
the clamping sealing assembly (3) comprises a clamping air cushion (31), an air inlet pipe (32) and an air pump (33), an annular groove is formed in the side wall of the placing groove, the clamping air cushion (31) is arranged on the side wall of the annular groove, one end of the air inlet pipe (32) is connected with the clamping air cushion (31), and the other end of the air inlet pipe is located outside the main body (2);
the air pump (33) is connected with one end of the air inlet pipe (32) far away from the clamping air cushion (31);
The limiting mechanism (4) is arranged on the main body (2), the limiting mechanism (4) comprises a connecting plate (41), limiting bolts (42), limiting plates (43) and guide blocks (44), limiting grooves communicated with the placing grooves are formed in the main body (2), and guide grooves are formed in the side walls of the placing grooves;
The connecting plate (41) is clamped in the limiting groove, and the limiting bolt (42) passes through the limiting plate (43) to be in threaded connection with the main body (2);
The limiting plate (43) is arranged on the connecting plate (41), and one end, away from the connecting plate (41), of the limiting plate (43) abuts against the clamping air cushion (31);
the guide block (44) is arranged on the limiting plate (43) and is slidably arranged with the guide groove;
an adjusting groove communicated with the limiting groove is formed in the main body (2), an ejection mechanism (5) is arranged on the main body (2), the ejection mechanism (5) comprises an ejection block (51), an adjusting shaft (52), an adjusting gear (53) and an adjusting rack (54), and the ejection block (51) is slidably arranged in the adjusting groove and can abut against the connecting plate (41);
the adjusting shaft (52) is rotatably arranged on the main body (2), and one end of the adjusting shaft (52) is positioned in the adjusting groove; the adjusting gear (53) is arranged on the adjusting shaft (52) in the adjusting groove; the adjusting rack (54) is arranged on the ejection block (51) and is meshed with the adjusting gear (53).
2. The clamp of the pipe hydrostatic testing machine according to claim 1, wherein the main body (2) comprises a first connecting body (21), a second connecting body (22), a connecting bolt (23) and a nut (24), a containing groove (211) is formed in the first connecting body (21), a first through hole (221) is formed in the second connecting body (22), and the containing groove (211) and the first through hole (221) form the placing groove together; the end part of the pipe penetrates through the first through hole (221) and is positioned in the accommodating groove (211), and the liquid inlet pipe (13) is arranged on the first connecting body (21) of the first clamp body (11); the clamping sealing assembly (3) is arranged on the second connecting body (22);
a second through hole (212) is formed in the first connecting body (21), and a third through hole is formed in the second connecting body (22); the connecting bolt (23) sequentially penetrates through the third through hole and the second through hole (212), a nut of the connecting bolt (23) abuts against the second connecting body (22), and the nut (24) is in threaded connection with one end of the connecting bolt (23) penetrating through the second through hole (212).
3. The clamp of the pipe hydrostatic testing machine according to claim 2, wherein the second connecting body (22) is provided with a reinforcing mechanism (6), the reinforcing mechanism (6) comprises a fixed block (61), a mounting bolt (62), a reinforcing block (63) and an adjusting assembly (64), a fourth through hole (611) is formed in the fixed block (61), the outer side wall of the second connecting body (22) abuts against the side wall of the fourth through hole (611), and the mounting bolt (62) penetrates through the fixed block (61) to be in threaded connection with the second connecting body (22);
the reinforcing block (63) is provided with two,
The adjusting assembly (64) comprises an adjusting motor (641) and a bidirectional screw (642), the adjusting motor (641) is arranged on the fixed block (61), the bidirectional screw (642) is arranged on the adjusting motor (641), the bidirectional screw (642) penetrates through the two reinforcing blocks (63), and the two reinforcing blocks (63) are respectively in threaded connection with two ends of the bidirectional screw (642).
4. The clamp of the pipe hydrostatic testing machine according to claim 1, further comprising an adjusting mechanism (7), wherein the adjusting mechanism (7) comprises an adjusting rod (71), an adjusting block (72) and an adjusting assembly (73), a first sliding groove (711) is formed in the adjusting rod (71), and the adjusting block (72) is slidably arranged in the first sliding groove (711); the main body (2) of the first clamp body (11) is connected to the adjusting rod (71), and the main body (2) of the second clamp body (12) is arranged on the adjusting block (72);
The adjusting assembly (73) comprises an adjusting motor (731) and an adjusting screw (732), the adjusting screw (732) is rotatably arranged in the first chute (711), and the adjusting screw (732) penetrates through the adjusting block (72) to be in threaded connection with the adjusting block (72); the adjustment motor (731) is disposed on the adjustment lever (71) and is connected to the adjustment screw (732).
5. The clamp of the pipe hydrostatic testing machine according to claim 4, wherein a connecting mechanism (8) connected with the main body (2) is arranged on the adjusting block (72), the connecting mechanism (8) comprises a clamping block (81) and a fixing bolt (82), the clamping block (81) is arranged on the main body (2), and a clamping groove clamped with the clamping block (81) is formed in the adjusting block (72); the fixing bolt (82) penetrates through the adjusting block (72) to be in threaded connection with the clamping block (81) located in the clamping groove.
6. The clamp of the pipe hydrostatic testing machine according to claim 4, wherein the adjusting rod (71) is provided with a supporting mechanism (9), the supporting mechanism (9) comprises a connecting block (91), a sliding block (92), a supporting block (93) and a lifting assembly (94), the connecting block (91) is arranged on the adjusting rod (71), the connecting block (91) is provided with a second sliding groove (911), and the sliding block (92) is slidably arranged in the second sliding groove (911); the supporting block (93) is arranged on the sliding block (92);
The lifting assembly (94) comprises a lifting motor (941), an adjusting gear (942) and an adjusting rack (943), wherein the lifting motor (941) is arranged on the connecting block (91), and the adjusting gear (942) is arranged on the lifting motor (941); the adjusting rack (943) is provided on the slider (92) and meshes with the adjusting gear (942).
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| CN202111492207.1A CN114235589B (en) | 2021-12-08 | 2021-12-08 | Clamp of pipe hydrostatic testing machine |
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| CN202111492207.1A CN114235589B (en) | 2021-12-08 | 2021-12-08 | Clamp of pipe hydrostatic testing machine |
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Citations (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1343602A (en) * | 1970-11-23 | 1974-01-16 | Press W & Son Ltd | Sealing pipe joints |
| JP2002242976A (en) * | 2001-01-23 | 2002-08-28 | Kenchu Ko | Air mat combination type buffer aseismatic unit |
| CN101947584A (en) * | 2010-09-02 | 2011-01-19 | 吉林麦达斯铝业有限公司 | Hydraulic compensator adopting spherical fillers |
| WO2011049726A1 (en) * | 2009-10-20 | 2011-04-28 | Illinois Tool Works Inc. | Dual side acting hydraulic grips synchronization |
| KR20110119363A (en) * | 2010-04-27 | 2011-11-02 | 주식회사 엠엘씨 | Apparatus for automatic fixation and separation of a tube-type vessel for pressure test |
| CN104931340A (en) * | 2015-06-11 | 2015-09-23 | 山东华信塑胶股份有限公司 | Sealing fixture used for pipe hydrostatic resistance test and using method of sealing fixture |
| CN204725366U (en) * | 2015-05-29 | 2015-10-28 | 宁波金田铜管有限公司 | A kind of tubing special fixture for hydrostatic tester |
| CN205426653U (en) * | 2015-12-15 | 2016-08-03 | 天津大学 | Thin pipe special fixture under compound loading of axial and interior pressure |
| CN205423395U (en) * | 2016-01-29 | 2016-08-03 | 管中林 | Sealing load adjustable hydraulic seal piston device |
| CN205617827U (en) * | 2016-03-31 | 2016-10-05 | 南通市建筑科学研究院有限公司 | Exempt from supporting steel plate and consolidate adjustable compressing device |
| CN205826412U (en) * | 2016-06-28 | 2016-12-21 | 陈仕达 | A kind of tubing special fixture for hydrostatic tester |
| KR20170024236A (en) * | 2015-08-25 | 2017-03-07 | 황철주 | Jig for water pressure test |
| CN109632469A (en) * | 2018-12-10 | 2019-04-16 | 南通耀华建设工程质量检测有限公司 | A kind of tubing sealed cartridge of high sealing performance |
| CN209745689U (en) * | 2019-04-02 | 2019-12-06 | 河南中恒信燃气设备有限公司 | Adjustable pipe clamp of hydrostatic testing machine |
| CN210375993U (en) * | 2019-07-06 | 2020-04-21 | 青岛优派普环保科技有限公司 | Pipe pressure resistance test device with clamping firmness |
| CN210665275U (en) * | 2019-08-27 | 2020-06-02 | 深圳万测试验设备有限公司 | Stainless steel rapid clamp for pipe testing |
| WO2020138145A1 (en) * | 2018-12-25 | 2020-07-02 | Ｊｆｅスチール株式会社 | Crushing test method for steel pipe for pipeline, manufacturing method for steel pipe for pipeline, and crushing test device |
| CN211453172U (en) * | 2019-10-12 | 2020-09-08 | 中国石油化工股份有限公司 | Sealing clamp for hydrostatic test of plastic pipe |
| CN211825506U (en) * | 2020-03-11 | 2020-10-30 | 山东迪捷聚合物科技有限公司 | Impact resistance test device for high-pressure hose |
| CN212722344U (en) * | 2020-08-06 | 2021-03-16 | 沈阳远洋数控机床有限公司 | Hydraulic testing machine with upper clamping structure |
| CN212989050U (en) * | 2020-07-27 | 2021-04-16 | 南京磊诺液压科技有限公司 | Pressure testing device for hydraulic rubber hose |
| CN112692353A (en) * | 2020-12-24 | 2021-04-23 | 四川兰晨管业有限公司 | Cutting and cleaning equipment for steel wire mesh framework plastic composite pipe production line |
| CN213903142U (en) * | 2020-12-02 | 2021-08-06 | 重庆鼎久管道有限公司 | Pipeline hydrostatic test's pipeline closing device |
| CN214174025U (en) * | 2020-12-03 | 2021-09-10 | 承德金博电子有限公司 | High-precision double-temperature-control pipe pressure-resistant blasting testing machine |
| CN214201000U (en) * | 2020-12-29 | 2021-09-14 | 北京金雕建材检测有限公司 | Hydrostatic experimental instrument |
| CN214277679U (en) * | 2020-12-18 | 2021-09-24 | 济南新路昌试验机有限公司 | Hydraulic clamp for universal testing machine |
| CN214373935U (en) * | 2020-12-02 | 2021-10-08 | 玫德雅昌(鹤壁)管业有限公司 | Tubular product hydrostatic testing machine |
| CN214408459U (en) * | 2021-03-20 | 2021-10-15 | 石家庄晶石建筑工程技术有限公司 | Pressure-resistant bursting test machine for pipes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7934415B2 (en) * | 2007-02-07 | 2011-05-03 | Airmo, Inc. | Hydrostatic testing tool and methods of use |
-
2021
- 2021-12-08 CN CN202111492207.1A patent/CN114235589B/en active Active
Patent Citations (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1343602A (en) * | 1970-11-23 | 1974-01-16 | Press W & Son Ltd | Sealing pipe joints |
| JP2002242976A (en) * | 2001-01-23 | 2002-08-28 | Kenchu Ko | Air mat combination type buffer aseismatic unit |
| WO2011049726A1 (en) * | 2009-10-20 | 2011-04-28 | Illinois Tool Works Inc. | Dual side acting hydraulic grips synchronization |
| KR20110119363A (en) * | 2010-04-27 | 2011-11-02 | 주식회사 엠엘씨 | Apparatus for automatic fixation and separation of a tube-type vessel for pressure test |
| CN101947584A (en) * | 2010-09-02 | 2011-01-19 | 吉林麦达斯铝业有限公司 | Hydraulic compensator adopting spherical fillers |
| CN204725366U (en) * | 2015-05-29 | 2015-10-28 | 宁波金田铜管有限公司 | A kind of tubing special fixture for hydrostatic tester |
| CN104931340A (en) * | 2015-06-11 | 2015-09-23 | 山东华信塑胶股份有限公司 | Sealing fixture used for pipe hydrostatic resistance test and using method of sealing fixture |
| KR20170024236A (en) * | 2015-08-25 | 2017-03-07 | 황철주 | Jig for water pressure test |
| CN205426653U (en) * | 2015-12-15 | 2016-08-03 | 天津大学 | Thin pipe special fixture under compound loading of axial and interior pressure |
| CN205423395U (en) * | 2016-01-29 | 2016-08-03 | 管中林 | Sealing load adjustable hydraulic seal piston device |
| CN205617827U (en) * | 2016-03-31 | 2016-10-05 | 南通市建筑科学研究院有限公司 | Exempt from supporting steel plate and consolidate adjustable compressing device |
| CN205826412U (en) * | 2016-06-28 | 2016-12-21 | 陈仕达 | A kind of tubing special fixture for hydrostatic tester |
| CN109632469A (en) * | 2018-12-10 | 2019-04-16 | 南通耀华建设工程质量检测有限公司 | A kind of tubing sealed cartridge of high sealing performance |
| WO2020138145A1 (en) * | 2018-12-25 | 2020-07-02 | Ｊｆｅスチール株式会社 | Crushing test method for steel pipe for pipeline, manufacturing method for steel pipe for pipeline, and crushing test device |
| CN209745689U (en) * | 2019-04-02 | 2019-12-06 | 河南中恒信燃气设备有限公司 | Adjustable pipe clamp of hydrostatic testing machine |
| CN210375993U (en) * | 2019-07-06 | 2020-04-21 | 青岛优派普环保科技有限公司 | Pipe pressure resistance test device with clamping firmness |
| CN210665275U (en) * | 2019-08-27 | 2020-06-02 | 深圳万测试验设备有限公司 | Stainless steel rapid clamp for pipe testing |
| CN211453172U (en) * | 2019-10-12 | 2020-09-08 | 中国石油化工股份有限公司 | Sealing clamp for hydrostatic test of plastic pipe |
| CN211825506U (en) * | 2020-03-11 | 2020-10-30 | 山东迪捷聚合物科技有限公司 | Impact resistance test device for high-pressure hose |
| CN212989050U (en) * | 2020-07-27 | 2021-04-16 | 南京磊诺液压科技有限公司 | Pressure testing device for hydraulic rubber hose |
| CN212722344U (en) * | 2020-08-06 | 2021-03-16 | 沈阳远洋数控机床有限公司 | Hydraulic testing machine with upper clamping structure |
| CN213903142U (en) * | 2020-12-02 | 2021-08-06 | 重庆鼎久管道有限公司 | Pipeline hydrostatic test's pipeline closing device |
| CN214373935U (en) * | 2020-12-02 | 2021-10-08 | 玫德雅昌(鹤壁)管业有限公司 | Tubular product hydrostatic testing machine |
| CN214174025U (en) * | 2020-12-03 | 2021-09-10 | 承德金博电子有限公司 | High-precision double-temperature-control pipe pressure-resistant blasting testing machine |
| CN214277679U (en) * | 2020-12-18 | 2021-09-24 | 济南新路昌试验机有限公司 | Hydraulic clamp for universal testing machine |
| CN112692353A (en) * | 2020-12-24 | 2021-04-23 | 四川兰晨管业有限公司 | Cutting and cleaning equipment for steel wire mesh framework plastic composite pipe production line |
| CN214201000U (en) * | 2020-12-29 | 2021-09-14 | 北京金雕建材检测有限公司 | Hydrostatic experimental instrument |
| CN214408459U (en) * | 2021-03-20 | 2021-10-15 | 石家庄晶石建筑工程技术有限公司 | Pressure-resistant bursting test machine for pipes |
Non-Patent Citations (6)
| Title |
|---|
| "Experiment and simulation of a controllable multi-airbag sealing disc of pipeline inspection gauges (PIGs)";Jinhui Dong 等;《International Journal of Pressure Vessels and Piping》;20210830;第192卷;第104422页 * |
| "Improved design rules for pipe clamp connectors";Cornelis J. Dekker 等;《International Journal of Pressure Vessels and Piping》;20040229;第81卷(第02期);第141-157页 * |
| "塑料管材用橡胶圈伸缩节胀管模具";曾宪林;《现代塑料加工应用》;19971015;第51-54页 * |
| "建筑节能材料质量检测现状分析及建议";黄海敏 等;《建筑节能》;20151025;第43卷(第10期);第90-92页 * |
| "微机控制的塑料管材压力试验机的设计";朱振杰 等;《机床与液压》;20050530;第80-81页 * |
| "新型焊管水压试验端面密封装置";赵德生;《焊管》;19970110;第6页 * |
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