CN105021466B - A kind of compression shock testing equipment - Google Patents
A kind of compression shock testing equipment Download PDFInfo
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- CN105021466B CN105021466B CN201510385392.2A CN201510385392A CN105021466B CN 105021466 B CN105021466 B CN 105021466B CN 201510385392 A CN201510385392 A CN 201510385392A CN 105021466 B CN105021466 B CN 105021466B
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Abstract
The invention discloses a kind of compression shock testing equipment, including water tank, cylinder and piston push rod, the top of piston push rod is provided with the piston being located in cylinder, the other end of piston push rod is stretched into water tank, the top of cylinder is connected with source of the gas, it is connected with water tank provided with moisturizing groove, the side of water tank is additionally provided with the pipe fitting jointing pipe of joint test pipe fitting.This compression shock testing equipment applies air pressure by source of the gas to the piston tip on cylinder top, piston can be forced to push down on piston push rod pressure is applied to water tank, and hydraulic pressure is conveyed to experiment pipe fitting by pipe fitting jointing pipe, carry out pipe fitting compression shock experiment, the pressure that this equipment removes cylinder may be such that hydraulic pressure is rapidly decreased to zero, pipe fitting compression shock can be rapidly completed by this equipment to test, and without multiple water-filling, so that pipe fitting compression shock tests safety and reliability, and more energy efficient environmental protection, this is invented tests field for compression shock between pipe.
Description
Technical field
The present invention relates to mechanical test apparatus field, more particularly to a kind of compression shock testing equipment.
Background technology
At present, the pipeline of various materials and various pipeline connected modes are a lot, but various pipeline connected modes
Can how, be adapted to conveying which kind of medium, connection it is safe not high, will pass through a series of testing and verification and inspection,
And compression shock experiment is the most basic experiment that must be done.
Such as GB/T19228 provides that the pipe fitting of stainless steel cartridge connection has to pass through compression shock experiment, it is desirable to will connect
Head is connected with more than 500mm pipe, and inside is filled after water, boosts to 2.5MPa, then is depressurized to 0MPa, and this operation should be complete in 2s
Into, and as a cycle, instead apply the same internal pressure in 1500 cycles, there must not be seepage, be left out and other exceptions.
It can be seen that compression shock experiment has particularly important effect.The pressure commercially applied at present with each pipe fitting enterprise
Power impact test is standby, is generally compared with simple and crude equipment.It is to test in pipe fitting access system using process, opens stop valve and prepares
Experiment, starts experiment, high pressure water-injection pump is to water pot water filling, when the water pressure of water pot and experiment pipe fitting reaches defined 2.5MPa
When, high pressure water-injection pump stops water filling, and magnetic valve opens draining, then the pressure of water pot and the water in experiment pipe fitting is reduced to 0MPa,
At this moment closed electromagnetic valve, high pressure water-injection pump starts second period again to water pot water filling.This way is to utilize high pressure water-injection pump
Pressure is provided, magnetic valve draining pressure release, principle is simple, but there is very big defect.
First, high-pressure hydraulic pump pressure is high, and flow is small, and waterflood injection rate is slow.Secondly, when opening magnetic valve draining pressure release, due to
The reason for pressure and viscosity of water, drainage speed can be quickly, it is possible to produce suck-back, causes the water of water pot largely to flow away, makes
Into after second round, first water filling again to pressurize, due to the small characteristic of high-pressure hydraulic pump flow, to complete water filling in 1s or so
Pressurization is highly difficult；If program sets 2s cycle by force, experiment will serious distortion.In addition, high pressure water-injection pump opens for a long time,
It is uneconomical；Motor will stop, open once per 2s, and frequent starting injures very big to motor, moreover, in this system, according to
Pump pressure it is higher when, have the potential safety hazard of pressure superelevation, it is necessary to install safety valve additional.
The content of the invention
To solve the above problems, the present invention is provided, a kind of performance is more superior and compression shock experiments of more energy-conserving and environment-protective are set
It is standby.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of compression shock testing equipment, including water tank, cylinder and piston push rod, the top of piston push rod, which is provided with, is located at gas
Piston in cylinder, the other end of piston push rod is stretched into water tank, and the top of cylinder is connected with source of the gas, is connected with water tank provided with moisturizing
Groove, the side of water tank is additionally provided with the pipe fitting jointing pipe of joint test pipe fitting.
The improvement of technical solution of the present invention is further used as, cylinder is fixedly installed in the top of water tank, and cylinder includes cylinder
Rear end cap, cylinder drive end bearing bracket and the cylinder barrel being connected between cylinder rear end cap and cylinder drive end bearing bracket, piston is along along cylinder barrel
Wall is slided.
It is further used as the improvement of technical solution of the present invention, the side wall of cylinder rear end cap and cylinder drive end bearing bracket passes through air-flow
Pipeline is connected to 3 position-5 way magnetic valve, and 3 position-5 way magnetic valve is connected to source of the gas by pneumatic triplet, with cylinder rear end cap
Choke valve is equipped with the airflow line connected with cylinder drive end bearing bracket.
The improvement of technical solution of the present invention is further used as, the top of water tank is provided with some flange connecting holes, the top of water tank
End is connected with an adpting flange by flange connecting hole, and the bottom of cylinder drive end bearing bracket is provided with the middle part of embedded adpting flange and and piston
Sealed flange between push rod, the supercharging cylinder sleeve stretched into inside water tank is provided with through the center of water tank top cover, and piston push rod can increase
Slided in device for pressing cylinder liner.
The improvement of technical solution of the present invention is further used as, the outer wall of water tank is provided with three pipeline connection ports and positioned at water
Blowoff valve is provided with the sewage draining exit in bottom portion, sewage draining exit.
It is further used as on the improvement of technical solution of the present invention, tank outer wall that wherein a pipeline connection port is connected by water pipe
Moisturizing groove, is connected with water pipe and is additionally provided with water injecting pump, and water pipe is provided with check valve and the cut-off positioned at moisturizing groove and water filling pump side
Valve.
The improvement of technical solution of the present invention is further used as, water tank is connected with pressure gauge and position by a pipeline connection port
In the pressure meter switch on connecting pipe.
The improvement of technical solution of the present invention is further used as, pipe fitting jointing pipe is provided with stop valve.
Beneficial effects of the present invention：This compression shock testing equipment applies gas by source of the gas to the piston tip on cylinder top
Pressure, can force piston to push down on piston push rod and apply pressure to water tank, and convey water to experiment pipe fitting by pipe fitting jointing pipe
Pressure, carries out pipe fitting compression shock experiment, and the pressure that this equipment removes cylinder may be such that hydraulic pressure is rapidly decreased to zero, pass through this equipment
The experiment of pipe fitting compression shock can be rapidly completed, and without multiple water-filling so that pipe fitting compression shock tests safety and reliability, and more
Energy-conserving and environment-protective.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is overall structure diagram of the embodiment of the present invention.
Embodiment
Reference picture 1, it is of the invention for a kind of compression shock testing equipment, including water tank 1, cylinder 2 and piston push rod 3, piston
The top of push rod 3 is provided with the piston 31 being located in cylinder 2, and the other end of piston push rod 3 is stretched into water tank 1, and the top of cylinder 2 connects
Source of the gas 4 is connected to, is connected with water tank 1 provided with moisturizing groove 5, the side of water tank 1 is additionally provided with the pipe fitting jointing pipe 6 of joint test pipe fitting.
This compression shock testing equipment applies air pressure by source of the gas 4 to the top of piston 31 on the top of cylinder 2, can force piston
31, which push down on piston push rod 3, applies pressure to water tank 1, and conveys hydraulic pressure to experiment pipe fitting by pipe fitting jointing pipe 6, is managed
Part compression shock is tested, and the pressure that this equipment removes cylinder 2 may be such that hydraulic pressure is rapidly decreased to zero, can be quickly complete by this equipment
Into the experiment of pipe fitting compression shock, and without multiple water-filling so that pipe fitting compression shock tests safety and reliability, and more energy efficient ring
Protect.
As the preferred embodiment of the present invention, cylinder 2 is fixedly installed in the top of water tank 1, and cylinder 2 includes cylinder rear end
Lid 21, cylinder drive end bearing bracket 22 and the cylinder barrel 23 being connected between cylinder rear end cap 21 and cylinder drive end bearing bracket 22, piston 31 is along gas
The inwall of cylinder barrel 23 is slided.
As the preferred embodiment of the present invention, the side wall of cylinder rear end cap 21 and cylinder drive end bearing bracket 22 passes through gas flow tube
Road is connected to 3 position-5 way magnetic valve 41, and 3 position-5 way magnetic valve 41 is connected to source of the gas 4 by pneumatic triplet 42, after cylinder
Choke valve is equipped with the airflow line that end cap 21 and cylinder drive end bearing bracket 22 are connected.
As the preferred embodiment of the present invention, the top of water tank 1 is provided with some flange connecting holes, and the top of water tank 1 leads to
Cross flange connecting hole and be connected with an adpting flange 7, the bottom of cylinder drive end bearing bracket 22 is provided with the embedded middle part of adpting flange 7 and and piston
Sealed flange 221 between push rod 3, the supercharging cylinder sleeve 8 stretched into inside water tank 1, piston push rod are provided with through the center of the top cover of water tank 1
3 can slide in supercharging cylinder sleeve 8.
As the preferred embodiment of the present invention, the outer wall of water tank 1 is provided with three pipeline connection ports and positioned at the bottom of water tank 1
Blowoff valve 111 is provided with the sewage draining exit 11 in portion, sewage draining exit 11.
As the preferred embodiment of the present invention, a wherein pipeline connection port connects moisturizing by water pipe on the outer wall of water tank 1
Groove 5, is connected with water pipe and is additionally provided with water injecting pump 51, section of the water pipe provided with check valve and positioned at moisturizing groove 5 and the side of water injecting pump 51
Only valve.
As the preferred embodiment of the present invention, water tank 1 is connected with pressure gauge 9 and positioned at even by a pipeline connection port
Pressure meter switch 91 on adapter road.
As the preferred embodiment of the present invention, pipe fitting jointing pipe 6 is provided with stop valve.
Water tank 1 is tubular construction, three connection pores is welded with the stack shell of water tank 1, one connects note by check valve
Water pump 51 and moisturizing groove 5, one pass through stop valve joint test pipe fitting, another connection pressure meter switch 91 and connection band signal
The pressure gauge 9 of output.The bottom of water tank 1 opens up a sewage draining exit 11, and a hole is opened up at top and is coordinated with supercharging cylinder sleeve 8.Increase
Device for pressing cylinder liner 8 is a long tubular construction, and one end is adpting flange 7, supercharging cylinder sleeve 8 is locked in the top of water tank 1, endoporus is through overground
Finishing is cut, seal request is reached.The internal diameter of the cylinder barrel 23 of cylinder 2 is designed as 5 times of the external diameter of piston push rod 3, and piston is pushed away
The anterior car of bar 3 has an annular groove, for filling sealing ring.The center of adpting flange 7 has a hole to coordinate with cylinder 2, front end boss and water
The seam at the top of case 1 coordinates, and adpting flange 7 loads onto the top that water tank 1 is locked in after cylinder 2, because there is seam to determine between them
Position, it can be ensured that the piston push rod 3 in cylinder 2 is inserted in supercharging cylinder sleeve 8.
Experiment pipe fitting is connected with pipe fitting jointing pipe 6 during experiment, opened after stop valve, water injecting pump 51 is opened to the He of water tank 1
Pipe fitting water-filling is tested, full of water injecting pump 51 is closed down after water, stops pump water.3 position-5 way magnetic valve 41 moves right when connecting, source of the gas 4
Ventilated by the top cylinder rear end cap 21 of cylinder 2 to the top of piston 31, promote piston 31 and piston push rod 3 to move downward, it is living
Plug push rod 3 is pressed downward the water being pressurized in cylinder sleeve 8, so as to be pressed by pipe fitting jointing pipe 6 to experiment pipe fitting.
Force analysis is carried out to piston push rod 3：Ignore Mo Li and gravity, one be the top of piston 31 pressure F, pressure F=
The area S of piston 31 × air pressure P1, one be water in bottom supercharging cylinder sleeve 8 counter-pressure f, area A × water of f=piston push rod 3
Pressure P2, according to balance between two forces F=f, i.e. SP1=AP2, because the area S of piston 31 is 5 times of the area of piston push rod 3, that
Pressure P2=5 times the P1 of water in cylinder sleeve 8 is pressurized, when our tops of piston 31 into cylinder 2 are passed through 0.5MPa pressure,
Pressure P2=5P1=5 × 0.5=2.5MPa of water in cylinder sleeve 8 is pressurized, according to Pascal's theorem, all water with supercharging cylinder sleeve 8
Connected water is all 2.5MPa, then the hydraulic pressure in water tank 1 and experiment pipe fitting is all 2.5MPa, the pressure of at this moment band signal output
Table 9 sends the enough signals of pressure, and it is the bottom of piston 31 ventilation into cylinder 2 to moving to left that 3 position-5 way magnetic valve 41, which is connected,
Piston 31 and piston push rod 3 is promoted to move upwards so that the water pressure release in supercharging cylinder sleeve 8, the hydraulic pressure pressure release in supercharging cylinder sleeve 8
During to 0, that is to say, that water tank 1 and experiment pipe fitting pressure are let out to 0, and at this moment pressure gauge 9 sends signal, 3 position-5 way magnetic valve 41 again
Connection is to move right, the top of piston 31 ventilation into cylinder 2, promotes piston push rod 3 to be pressed downward the water being pressurized in cylinder sleeve 8, enters
Row next cycle.
After this equipment, with the water pump of low pressure and mass flow, by check valve, only once to water tank 1 and experiment pipe fitting note
Water, full of water injecting pump 51 is turned off after water, is gone to press the water in water tank 1 with cylinder 2, makes water tank 1 and experiment pipe fitting using supercharging technology
Water produce pressure oscillation.The advantage of this equipment is to utilize cylinder, and reaction speed is fast, makes the fast response time of whole system, no
In whole process of the test repeatedly water filling draining and open water pump for a long time, save the energy, will not without frequent starting motor
Motor is injured, the ventable dynamic triplet setting of Pneumatic pressure, is not in the safety problem of superpressure, not only economic but also safety.
And the present invention can be applied in the device and experiment of other pressure oscillations, outside the piston 31 in adjustment cylinder 2
Footpath and the ratio of the external diameter of piston push rod 3, it is possible to change the size of surge, adapt to the testing equipment of various pressure.
This device can also change the cylinder at top into hydraulic cylinder there is provided bigger pressure oscillation value, to adapt to various high pressures
The testing equipment of power.
Certainly, the invention is not limited to above-mentioned embodiment, and those skilled in the art are without prejudice to originally
Equivalent variations or replacement can be also made on the premise of spirit, these equivalent modifications or replacement are all contained in the application right
It is required that in limited range.
Claims (7)
1. a kind of compression shock testing equipment, it is characterised in that：Including water tank (1), cylinder (2) and piston push rod (3), the work
The top for filling in push rod (3) is provided with the piston (31) being located in cylinder (2), and the other end of the piston push rod (3) stretches into water tank (1)
Interior, the top of the cylinder (2) is connected with source of the gas (4), is connected with the water tank (1) provided with moisturizing groove (5), the water tank (1)
Side be additionally provided with the pipe fitting jointing pipe (6) of joint test pipe fitting, the cylinder (2) is fixedly installed in the top of water tank (1), institute
Stating cylinder (2) includes cylinder drive end bearing bracket (22), and the top of the water tank (1) is provided with some flange connecting holes, the water tank (1)
Top is connected with an adpting flange (7) by flange connecting hole, and the bottom of the cylinder drive end bearing bracket (22) is provided with embedded connection method
Blue (7) middle part and the sealed flange (221) between piston push rod (3), are provided with through the center of the water tank (1) top cover and stretch into water
The internal supercharging cylinder sleeve (8) of case (1), the piston push rod (3) can be slided in supercharging cylinder sleeve (8).
2. compression shock testing equipment according to claim 1, it is characterised in that：The cylinder (2) also includes after cylinder
End cap (21) is connected to the cylinder barrel (23) between cylinder rear end cap (21) and cylinder drive end bearing bracket (22), and the piston (31) is along gas
Cylinder barrel (23) inwall is slided.
3. compression shock testing equipment according to claim 2, it is characterised in that：The cylinder rear end cap (21) and cylinder
The side wall of drive end bearing bracket (22) is connected to 3 position-5 way magnetic valve (41), the 3 position-5 way magnetic valve (41) by airflow line
Source of the gas (4) is connected to by pneumatic triplet (42), the gas being connected with the cylinder rear end cap (21) and cylinder drive end bearing bracket (22)
Flow tube is equipped with choke valve on road.
4. the compression shock testing equipment according to any one in claims 1 to 3, it is characterised in that：The water tank (1)
Outer wall be provided with three pipeline connection ports and the sewage draining exit (11) positioned at water tank (1) bottom, sewage draining exit (11) place is provided with
Blowoff valve (111).
5. compression shock testing equipment according to claim 4, it is characterised in that：Wherein one on water tank (1) outer wall
Pipeline connection port connects moisturizing groove (5) by water pipe, is connected with the water pipe and is additionally provided with water injecting pump (51), the water pipe is provided with
Check valve and the stop valve positioned at moisturizing groove (5) and water injecting pump (51) side.
6. compression shock testing equipment according to claim 4, it is characterised in that：The water tank (1) is connected by a pipeline
Interface is connected with pressure gauge (9) and the pressure meter switch (91) on connecting pipe.
7. compression shock testing equipment according to claim 4, it is characterised in that：The pipe fitting jointing pipe (6) is provided with
Stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510385392.2A CN105021466B (en) | 2015-07-01 | 2015-07-01 | A kind of compression shock testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510385392.2A CN105021466B (en) | 2015-07-01 | 2015-07-01 | A kind of compression shock testing equipment |
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| Publication Number | Publication Date |
|---|---|
| CN105021466A CN105021466A (en) | 2015-11-04 |
| CN105021466B true CN105021466B (en) | 2017-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510385392.2A Active CN105021466B (en) | 2015-07-01 | 2015-07-01 | A kind of compression shock testing equipment |
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| CN (1) | CN105021466B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208116B (en) * | 2019-05-27 | 2022-02-11 | 华东交通大学 | Pneumatic variable-load multi-source impact experimental device |
| CN112082723B (en) * | 2019-06-14 | 2024-06-11 | 浙江工业大学 | Impact testing machine |
| CN112903280B (en) * | 2020-12-15 | 2023-12-26 | 西安航天动力研究所 | Valve impact performance test pipeline and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045490U (en) * | 1989-03-18 | 1989-10-04 | 黄云龙 | Multifunction pressure tester |
| CN202066745U (en) * | 2011-06-01 | 2011-12-07 | 江苏丰信不锈钢制造有限公司 | Boosting device of fully-automatic hydraulic press |
| CN202256066U (en) * | 2011-10-21 | 2012-05-30 | 融林塑胶(福建)有限公司 | Plastic pipeline hydrostatic test machine |
| CN203688366U (en) * | 2014-01-24 | 2014-07-02 | 山东大学 | Hydraulic fracturing water injection loading device based on rock-like resin test piece |
| CN204988892U (en) * | 2015-07-01 | 2016-01-20 | 广东立丰管道科技有限公司 | Pressure collision test equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012127833A (en) * | 2010-12-16 | 2012-07-05 | Daido Steel Co Ltd | Hydraulic pressure tester for pipe |
-
2015
- 2015-07-01 CN CN201510385392.2A patent/CN105021466B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045490U (en) * | 1989-03-18 | 1989-10-04 | 黄云龙 | Multifunction pressure tester |
| CN202066745U (en) * | 2011-06-01 | 2011-12-07 | 江苏丰信不锈钢制造有限公司 | Boosting device of fully-automatic hydraulic press |
| CN202256066U (en) * | 2011-10-21 | 2012-05-30 | 融林塑胶(福建)有限公司 | Plastic pipeline hydrostatic test machine |
| CN203688366U (en) * | 2014-01-24 | 2014-07-02 | 山东大学 | Hydraulic fracturing water injection loading device based on rock-like resin test piece |
| CN204988892U (en) * | 2015-07-01 | 2016-01-20 | 广东立丰管道科技有限公司 | Pressure collision test equipment |
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| Publication number | Publication date |
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| CN105021466A (en) | 2015-11-04 |
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