CN109141760A - Hydrostatic testing machine - Google Patents
Hydrostatic testing machine Download PDFInfo
- Publication number
- CN109141760A CN109141760A CN201811296060.7A CN201811296060A CN109141760A CN 109141760 A CN109141760 A CN 109141760A CN 201811296060 A CN201811296060 A CN 201811296060A CN 109141760 A CN109141760 A CN 109141760A
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- China
- Prior art keywords
- workpiece
- cylinder
- base
- testing machine
- hydrostatic testing
- Prior art date
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- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 22
- 238000005303 weighing Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000003973 irrigation Methods 0.000 claims description 14
- 230000002262 irrigation Effects 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003028 elevating effect Effects 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3281—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators removably mounted in a test cell
- G01M3/329—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators removably mounted in a test cell for verifying the internal pressure of closed containers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/36—Investigating fluid-tightness of structures by using fluid or vacuum by detecting change in dimensions of the structure being tested
Abstract
The present invention relates to a kind of testing machines, disclose a kind of hydrostatic testing machine, it includes base (1), it is respectively fixed on base (1) along the two sides of base (1) length direction and positioned opposite holds out against cylinder (2) and compressed oil cylinder (3), it holds out against cylinder (2) and compressed oil cylinder (3) is multiple and arranges along base (1) equal spacing in length direction, base (1) is equipped with the supporting rollern (5) supported to workpiece (4) both ends and the raising board (6) that can hold up workpiece (4), piston is fixed on base (1) to connect with raising board (6) and longitudinally arranged elevating ram (7), raising board (6) is equipped with the weighing sensor (8) weighed to workpiece (4).The present invention can efficiently, fast, accurately check whether steel cylinder has macroscopic deformation and leakage, and whether corresponding pressure gauge occurs pressure and return drop phenomenon, have accuracy high, human factor influences small feature.
Description
Technical field
The present invention relates to a kind of testing machines, more particularly to a kind of hydrostatic testing machine.
Background technique
Gas cylinder by hydrostatic pressure test is the most direct and effective means for detecting gas cylinder performance, can effectively check whether steel cylinder has
Whether macroscopic deformation and leakage, corresponding pressure gauge occur pressure and return drop phenomenon.
Test principle is to incrementally increase the water pressure test pressure for being reached gas cylinder by the pressure in trial jar using water as pressure medium
Power verifies the safe bearing capacity of gas cylinder.The automation of existing most of hydrostatic testing machines, intelligence degree are inclined
It is low, formula, which is inserted in, after by trial jar weight, liquid level, pressure and other parameters using apparatus measures such as platform scale, graduated cylinder, pressure gauges calculates gas cylinder
Rate of residual, using gas cylinder rate of residual as the whether safe and reliable foundation of gas cylinder is determined, the test method process is cumbersome,
Operation or work standard does not have uniformity and normalization, and measurement accuracy fluctuation is big.
Summary of the invention
The present invention problem unreasonable for the measurement method of existing hydrostatic testing machine in the prior art, provides one kind
Hydrostatic testing machine.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals:
Hydrostatic testing machine, including base are respectively fixed with top positioned opposite along the two sides of base length direction on base
Tight cylinder and compressed oil cylinder, hold out against cylinder and compressed oil cylinder is multiple and arranges along base equal spacing in length direction, base
Equipped with the supporting rollern supported to workpiece both ends and the raising board that workpiece can be held up, piston and lifting are fixed on base
Plate connection and longitudinally arranged elevating ram, raising board are equipped with the weighing sensor weighed to workpiece.It is passed by weighing
Sensor weighs up the quality of workpiece, then weighs up the quality for filling the workpiece of water, obtains workpiece lumen volume by the difference of two quality,
Pressure dependence when respectively obtaining injection high pressure water and low pressure water is calculated by the principle, then judges whether test piece leaks
To determine that its is qualified or not.Efficiently, fast, accurately it can check whether steel cylinder has macroscopic deformation and infiltration by this kind of method
Leakage has accuracy high, and human factor influences small feature.
Preferably, raising board is arranged along base length direction and is set to the middle position of workpiece, so as to guarantee
The raising board picking-up that workpiece is stable avoids workpiece inclination, rollover.
Preferably, being fixed with the V-block matched with workpiece outer contour shape on raising board, weighing sensor is set to
Between V-block and raising board.
Preferably, being fixed with cylinder fixed seat on base, holds out against cylinder and be fixed in cylinder fixed seat, cylinder piston is worn
It crosses cylinder fixed seat and cylinder piston end is connected with the trundle that can be resisted against workpiece end, cylinder fixed seat, which is equipped with, to be supplied
The driving groove that trundle protrudes into.
Preferably, further including the positioning bowl to workpiece end positioning, transmission pin end is passed through in the middle part of positioning bowl, positioning
Bowl, trundle and cylinder piston coaxial arrangement.
Preferably, further including the knock pin being set in cylinder fixed seat, knock pin one end is equipped with spring and is set to
In cylinder fixed seat, the other end passes through positioning bowl bottom and protrudes into positioning bowl.
Preferably, being fixed with oil cylinder fixing base on base, compressed oil cylinder is fixed on oil cylinder fixing base, compressed oil cylinder
Piston rod end is connected with drive sleeve, and it further includes the connecting column connecting with workpiece end that drive sleeve end, which is equipped with drive block, connection
One end of column is equipped with upper and lower opening and cross section connection through-hole in the shape of a " convex ", and drive block is from the upper end or lower end for connecting through-hole
Opening is caught in connection through-hole and can slide up and down in connection through-hole, when workpiece falls or is detached from supporting rollern, transmission
Block can smoothly with connect through-hole and axially engage or be disconnected through-hole, so as to facilitate between drive sleeve and connecting column
It is detached from and connects.
Preferably, the other end of connecting column is equipped with sleeve, the internal expansion type bullet that can extend into inside workpiece is equipped in sleeve
Spring collet.The collet of spreading is enabled to bounce back under the action of sleeve, so that internal expansion type collet can move
Inside workpiece out.
Preferably, further include setting and workpiece end and the irrigation sleeve that be connected to inside workpiece, irrigation sleeve is equipped with infusing
The mouth of a river and pressure detecting exhaust outlet, bush outer sleeve are equipped with compressed spring, and the both ends of compressed spring are born against in connecting column and note
On water jacket.Both internal expansion type collet is enabled to smoothly to clasp workpiece inner face under the action of compressed spring, realize
Connection.
Preferably, oil cylinder fixing base is equipped with the U-shaped limiting slot of opening upwards, connecting column can be caught in U shape limiting slot
It is interior.Connecting column can be limited by U-shaped limiting slot, and then guarantee that workpiece can fall into the specified station on base, protected
Card holds out against the smooth clamping of cylinder and compressed oil cylinder to workpiece.
Preferably, the O-ring seals that sealing is formed with workpiece outer end face are equipped on irrigation sleeve close to the end face of workpiece,
Water when low pressure water injection can be effectively prevent to overflow situation by the effect of O-ring seals.
The present invention is due to using above technical scheme, with significant technical effect:
The hydrostatic testing machine that the present invention designs can efficiently, fast, accurately check whether steel cylinder has macroscopic deformation and infiltration
Whether leakage, corresponding pressure gauge occur pressure and return drop phenomenon, have accuracy high, human factor influences small feature, can make
To judge gas cylinder safely reliably effective foundation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the side view of Fig. 1.
Fig. 4 is the cross-sectional view in the face C-C in Fig. 2.
Fig. 5 is the cross-sectional view in the face D-D in Fig. 2.
Fig. 6 is the face B-B cross-sectional view in Fig. 3.
Fig. 7 is the partial enlarged view of right part in Fig. 5.
The toponym that each number designation is referred in attached drawing is as follows: 1-base, 2-hold out against cylinder, 3-compressed oil cylinders,
4-workpiece, 5-supporting rollerns, 6-raising boards, 7-elevating rams, 8-weighing sensors, 9-V-blocks, 10-cylinders are fixed
Seat, 11-trundles, 12-driving grooves, 13-positioning bowls, 14-knock pins, 15-oil cylinder fixing bases, 16-drive sleeves, 17-
Drive block, 18-connecting columns, 19-connection through-holes, 20-sleeves, 21-internal expansion type collets, 22-irrigation sleeves, 23-notes
The mouth of a river, 24-pressure detecting exhaust outlets, 25-compressed springs, 26-U-shaped limiting slots, 27-O-ring seals.
Specific embodiment
Present invention is further described in detail with embodiment with reference to the accompanying drawing.
Embodiment 1
Hydrostatic testing machine, it is solid respectively along the two sides of 1 length direction of base on base 1 as shown in Fig. 1-Fig. 7, including base 1
Surely have it is positioned opposite hold out against cylinder 2 and compressed oil cylinder 3, workpiece 4, which is fixed in, to be held out against between cylinder 2 and compressed oil cylinder 3, top
Tight cylinder 2 and compressed oil cylinder 3 are multiple and arrange along 1 equal spacing in length direction of base, and base 1 is equipped with to 4 liang of workpiece
Hold the supporting rollern 5 of support and the raising board 6 of workpiece 4 can be held up, be fixed on base 1 piston connect with raising board 6 and
Longitudinally arranged elevating ram 7, raising board 6 are equipped with the weighing sensor 8 weighed to workpiece 4, use 4 in the present embodiment
A weighing sensor 8 for forming bridge circuit.
The V-block 9 matched with 4 outer contour shape of workpiece is fixed on raising board 6, raising board 6 is along 1 length direction of base
Arrange and be set to the middle part of workpiece 4, elevating ram 7 by raising board 6 and V-block 9 can be smooth, stable lift it is multiple
Workpiece 4, so that whole operation efficiency greatly improves, weighing sensor 8 is set between V-block 9 and raising board 6, when workpiece 4
Available weighing sensor 8 weighs to workpiece 4 when being detached from supporting rollern 5, output numerical value.
It is fixed with cylinder fixed seat 10 on base 1, holds out against cylinder 2 and is fixed in cylinder fixed seat 10, cylinder piston passes through
Cylinder fixed seat 10 and cylinder piston end are connected with the trundle 11 that can be resisted against 4 end of workpiece, in cylinder fixed seat 10
Equipped with the driving groove 12 protruded into for trundle 11.It further include the positioning bowl 13 to the positioning of 4 end of workpiece, 11 end of trundle passes through
Position 13 middle part of bowl, positioning bowl 13, trundle 11 and cylinder piston coaxial arrangement.It further include being set to cylinder fixed seat 10
Interior knock pin 14,14 one end of knock pin are equipped with spring and are set in cylinder fixed seat 10, and the other end passes through positioning 13 bottom of bowl
Face is protruded into positioning bowl 13.
Oil cylinder fixing base 15 is fixed on base 1, compressed oil cylinder 3 is fixed on oil cylinder fixing base 15, the work of compressed oil cylinder 3
Stopper rod end is connected with drive sleeve 16, and it further includes the connecting column connecting with 4 end of workpiece that 16 end of drive sleeve, which is equipped with drive block 17,
18, one end of connecting column 18 is equipped with upper and lower opening and cross section connection through-hole 19 in the shape of a " convex ", and drive block 17 is logical from connecting
It is caught in connection through-hole 19 and can be slided up and down in connection through-hole 19 at the upper end in hole 19 or lower ending opening, so as to side
Just the disengaging and connection between drive sleeve 16 and connecting column 18.
The other end of connecting column 18 is equipped with sleeve 20, is equipped with the internal expansion type spring that can extend into inside workpiece 4 in sleeve 20
Collet 21.
Further include setting with 4 end of workpiece and with the irrigation sleeve 22 that is connected to inside workpiece 4, irrigation sleeve 22 is equipped with water filling port
23 and pressure detecting exhaust outlet 24, the O that sealing is formed with 4 outer end face of workpiece is equipped with close to the end face of workpiece 4 on irrigation sleeve 22
Shape sealing ring 27, water is not spilt over when realizing low pressure water injection, and compressed spring 25, the both ends point of compressed spring 25 are arranged with outside sleeve 20
It is not resisted against on connecting column 18 and irrigation sleeve 22.
Oil cylinder fixing base 15 is equipped with the U-shaped limiting slot 26 of opening upwards, and connecting column 18 can be caught in U-shaped limiting slot 26
It is interior, connecting column 18 can be limited by U-shaped limiting slot 26, and then it is specified on base 1 to guarantee that workpiece 4 can be fallen into
Station, guarantee hold out against cylinder 2 and smooth clamping of the compressed oil cylinder 3 to workpiece 4.
The course of work of entire hydrostatic testing machine is as follows in the present embodiment:
Step 1: tested 12 workpiece 4 are removed trial zone by loop wheel machine；By loop wheel machine by 12 workpiece 4 to be tested
It is sent on the supporting rollern 5 of test station；
Workpiece 4 is set to be detached from 5 component of supporting rollern, the V-block of each station Step 2: elevating ram 7 lifts raising board 6
4 weighing sensors 8 are installed between 9 and raising board 6；Just it can be used weighing sensor 8 to workpiece 4 when workpiece 4 is detached from roll wheel assembly
It weighs, output numerical value W0, W0 are 4 weight of workpiece；
Workpiece 4 is fallen on 5 groups of supporting rollern Step 3: elevating ram 7 is fallen；
Step 4: being pushed into the region of irrigation sleeve 22 by holding out against cylinder 2 for workpiece 4；
Internal expansion type collet 21 is protruded into workpiece 4 and in workpiece 4 Step 5: the cylinder piston for holding out against cylinder 2 is mobile
Interior spreading, holds out against the retraction of cylinder 2, and compressed spring 25 ejects so that internal expanding collet clasps 4 inner face of workpiece；
Step 6: 22 front end O-ring seal of irrigation sleeve is made to be close to 4 outer end face of workpiece, water is not spilt over when realizing low pressure water injection；
Low pressure water injection is carried out to workpiece 4 Step 7: opening water injecting electromagnetic valve, delay TS ensures that workpiece 4 fills water, extra
Water is discharged from discharge outlet；
Workpiece 4 is set to be detached from supporting rollern 5 Step 8: elevating ram 7 lifts raising board 6, being detached from supporting rollern 5 can
It is weighed with weighing sensor 8 to it, output numerical value W1 calculates V=W1-W0, exports volume V；
Workpiece 4 is fallen on supporting rollern 5 Step 9: elevating ram 7 is fallen；
Step 10: compressed oil cylinder 3 pushes the mobile left side for making workpiece 4 of workpiece 4 to be close to positioning 13 end face of bowl；
Step 11: the cylinder piston motion of compressed oil cylinder 3, protrudes into internal expansion type collet 21 in sleeve 20, compression
Internal expansion type collet 21, so that internal expansion type collet 21 retracts；
Step 12: scupper valve is closed, high pressure water injection valve opening infuses 35MPa high pressure water to it, reached to its pressure
To 35MPa, Water filling valve is cut off；Read the pressure P0 of each station at this time；Pressure maintaining 1min reads the pressure of each station at this time
P1；Calculate each station Pi=P0-P1；If the Pi of some station is more than that threshold value reads the workpiece 4 of the station as unqualified workpiece
4；
Step 13: compressed oil cylinder 3 is retracted, it is that workpiece 4 recalls that workpiece 4, which is ejected positioning 13 front end face of bowl, by knock pin 14
It prepares trial zone.
The present embodiment by above-mentioned test method can efficiently, fast, accurately check steel cylinder whether have macroscopic deformation and
Whether leakage, corresponding pressure gauge occur pressure and return drop phenomenon, have accuracy high, and human factor influences small feature, can
As judging gas cylinder safely reliably effective foundation.
In short, the foregoing is merely presently preferred embodiments of the present invention, it is all according to equalization made by scope of the present invention patent
Variation and modification, shall all be covered by the patent of the invention.
Claims (10)
1. hydrostatic testing machine, including base (1), it is characterised in that: distinguish on base (1) along the two sides of base (1) length direction
Be fixed with it is positioned opposite hold out against cylinder (2) and compressed oil cylinder (3), it is multiple and equal for holding out against cylinder (2) and compressed oil cylinder (3)
It is arranged along base (1) equal spacing in length direction, base (1) is equipped with the supporting rollern (5) and energy supported to workpiece (4) both ends
The raising board (6) for enough holding up workpiece (4), is fixed with that piston is connect with raising board (6) and longitudinally arranged lifting is oily on base (1)
Cylinder (7), raising board (6) are equipped with the weighing sensor (8) weighed to workpiece (4), and raising board (6) is along base (1) length
Direction is arranged and is set to the middle part position of workpiece (4).
2. hydrostatic testing machine according to claim 1, it is characterised in that: be fixed on raising board (6) and workpiece (4) foreign steamer
The V-block (9) that profile shape matches, weighing sensor (8) are set between V-block (9) and raising board (6).
3. hydrostatic testing machine according to claim 1, it is characterised in that: cylinder fixed seat (10) are fixed on base (1),
It holds out against cylinder (2) to be fixed on cylinder fixed seat (10), the cylinder piston for holding out against cylinder (2) passes through cylinder fixed seat (10) and gas
The cylinder piston end is connected with the trundle (11) that can be resisted against workpiece (4) end, and cylinder fixed seat (10) is equipped with for transmission
The driving groove (12) that pin (11) protrudes into.
4. hydrostatic testing machine according to claim 3, it is characterised in that: further include the positioning to the positioning of workpiece (4) end
Bowl (13), trundle (11) end pass through in the middle part of positioning bowl (13), and positioning bowl (13), trundle (11) and cylinder piston are coaxial
Setting.
5. hydrostatic testing machine according to claim 4, it is characterised in that: further include being set in cylinder fixed seat (10)
Knock pin (14), knock pin (14) one end are equipped with spring and are set in cylinder fixed seat (10), and the other end passes through positioning bowl
(13) bottom surface is protruded into positioning bowl (13).
6. hydrostatic testing machine according to claim 1, it is characterised in that: oil cylinder fixing base (15) are fixed on base (1),
Compressed oil cylinder (3) is fixed on oil cylinder fixing base (15), and the piston rod end of compressed oil cylinder (3) is connected with drive sleeve (16), is passed
Dynamic set (16) end is equipped with drive block (17), further includes the connecting column (18) connecting with workpiece (4) end, and the one of connecting column (18)
End is equipped with upper and lower opening and cross section connection through-hole (19) in the shape of a " convex ", and drive block (17) is from the upper end for connecting through-hole (19)
Or it is caught in connection through-hole (19) and can be slided up and down in connection through-hole (19) at lower ending opening.
7. hydrostatic testing machine according to claim 6, it is characterised in that: the other end of connecting column (18) is equipped with sleeve
(20), it is equipped in sleeve (20) and can extend into the internal internal expansion type collet (21) of workpiece (4).
8. hydrostatic testing machine according to claim 7, it is characterised in that: further include setting and workpiece (4) end and and work
The irrigation sleeve (22) being connected to inside part (4), irrigation sleeve (22) are equipped with water filling port (23) and pressure detecting exhaust outlet (24), sleeve
(20) it is arranged with compressed spring (25) outside, the both ends of compressed spring (25) are born against in connecting column (18) and irrigation sleeve (22)
On.
9. hydrostatic testing machine according to claim 6, it is characterised in that: oil cylinder fixing base (15) is equipped with opening upwards
U-shaped limiting slot (26), connecting column (18) can be caught in U-shaped limiting slot (26).
10. hydrostatic testing machine according to claim 8, it is characterised in that: close to the end face of workpiece (4) on irrigation sleeve (22)
It is equipped with the O-ring seals (27) that sealing is formed with workpiece (4) outer end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296060.7A CN109141760A (en) | 2018-11-01 | 2018-11-01 | Hydrostatic testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296060.7A CN109141760A (en) | 2018-11-01 | 2018-11-01 | Hydrostatic testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109141760A true CN109141760A (en) | 2019-01-04 |
Family
ID=64807105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201811296060.7A Pending CN109141760A (en) | 2018-11-01 | 2018-11-01 | Hydrostatic testing machine |
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| CN (1) | CN109141760A (en) |
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