CN204371707U - The Multicarity pump housing divides chamber voltage withstanding test fixture - Google Patents
The Multicarity pump housing divides chamber voltage withstanding test fixture Download PDFInfo
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- CN204371707U CN204371707U CN201420832996.8U CN201420832996U CN204371707U CN 204371707 U CN204371707 U CN 204371707U CN 201420832996 U CN201420832996 U CN 201420832996U CN 204371707 U CN204371707 U CN 204371707U
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Abstract
The utility model relates to a kind of Multicarity pump housing point chamber voltage withstanding test fixture, and it comprises first point of chamber clamping plate, second point of chamber clamping plate and the fixing-assembly for this first substrate and this second substrate being clamped.First post can be coordinated second to coordinate the straight mouth of post to be connected with this by this between these first point of chamber clamping plate and this second point of chamber clamping plate.First post is coordinated second to coordinate column sealing to coordinate to surround a counter balance pocket with this by this after these first point of chamber clamping plate and this second point of straight mouth of chamber clamping plate is connected.This Multicarity pump housing point chamber voltage withstanding test fixture can solve the Multicarity pump housing owing to being difficult to carry out a point chamber voltage-withstand test, and whole pump must design according to the highest a certain pressurized cavity, thus causes the problem of production high cost.
Description
Technical field
The utility model relates to water-aspirator pressure field tests, especially relates to a kind of Multicarity pump housing point chamber voltage withstanding test fixture.
Background technique
The pump housing is as one of water pump main pressure-containing member, and its design must meet certain intensity, rigidity and leakproofness requirement.The pump housing must observe it by voltage-withstand test after design completes to be had obvious plastic deformation and breaks, and to check its design strength, verifies whether it has the necessary bearing capacity of safe operation under design pressure.There is No leakage by observing different connection part simultaneously, designing potential local defect with the leakproofness of test design or discovery.
The voltage-withstand test of the pump housing is generally use water as pressurizing medium, in the pump housing, apply the test pressure more taller than its maximum working (operation) pressure (MWP).According to the design of relevant pump, test stone (as the hydrostatic test program of DIN EN 12162-2010 liquor pump safety requirement, ISO 5199 centrifugal pump technical requirements-II class standard, ISO 9905 centrifugal pump technical requirements-I class standard etc.), the voltage-withstand test value of the known pump housing can be carried out according to following principle:
For single cavity pump housing, its voltage-withstand test pressure is necessary for 1.3 ~ 1.5 times of its maximum service pressure;
For the Multicarity pump housing, the voltage-withstand test pressure of its each cavity should be not less than 1.3 ~ 1.5 times of respective cavity maximum service pressure, can carry out a point chamber test if desired to each cavity.
In actual mechanical process, for single cavity pump housing, generally only blind plate need be used to be blocked by each outside opening can carry out voltage-withstand test.And for the Multicarity pump housing, especially when its working pressure is high, opening size is large, often too large in the opening sealing force of high low pressure boundary, be difficult to find a rational point chamber fixture to split high low pressure cavity.
Fig. 1 is a kind of pump housing 110 of double-suction multi-stage middle-opening pump and the structure of traditional point chamber voltage withstanding test fixture 120.Wherein, 111 is rotor seal cavity.This pump operationally, first flowing medium enters the pump housing 110 from the suction chamber 112 of both sides simultaneously, after first order blade wheel chamber 113 pressurizes, enter after second level blade wheel chamber 114 through stator and continue pressurization, then by stator fluid imported to after third level blade wheel chamber 115 pressurizes and pump.Wherein the working pressure of suction chamber 112 is P1, the working pressure of first order blade wheel chamber 113 is P2, the pressure that second level blade wheel chamber 114 works is P3, and the working pressure of third level blade wheel chamber 115 is P4, and P1<P2<P3<P4.Because P4 will far away higher than the pressure in other chamber, design if therefore third level blade wheel chamber 115 can be separated with other cavity, and independent voltage-withstand test can be carried out will save a lot of material and cost of production.
This point of chamber voltage withstanding test fixture 120 comprises two seal chamber blind plates, 121, two seal rings 122, two points of chamber clamping plate 123, clamping screw rod 124 and sealing nuts 125.This point of chamber voltage withstanding test fixture 120 is when testing, mainly there is following problem: under point chamber clamping plate 123 are exposed to pressure medium completely, therefore point chamber clamping plate 123 will produce sealing (work) load that one is pointed to low pressure area, its size is π * (D/2)
2* (P4-P3) * (1.3 ~ 1.5), D are a point sealed diameter for chamber clamping plate 123.When the difference of P4 and P3 is very large, or when sealed diameter D is very large, the work loads on point chamber clamping plate 123 will be very large.Thus need a very thick clamping screw rod 124 to provide enough large pretightening force to offset its work loads, otherwise the seal ring 122 on point chamber clamping plate 123 would not be compacted, seal ring 122 can lose sealing effect.But in fact, be also difficult to obtain so large pretightening force by general torque spanner, be therefore just difficult to ensure that sealing surface can effectively compress.Sealing station was once lose efficacy, and zone of high pressure and low pressure area will produce very large leakage, and this time-division chamber voltage-withstand test will be failed.
Offset work loads on point chamber clamping plate 123 because a clamping screw rod 124 is difficult to obtain enough large prefastening load, also have technician to attempt to use many clamping screw rods 124 to connect the two pieces of points of chamber clamping plate 123 in left and right.But often due to point chamber clamping plate 123 wrap up by other cavity, be difficult to find out space to install more clamping screw rod 124, its result remain be difficult to ensure sealing station effectively work.
Therefore, for the Multicarity pump housing, due to the defect that existing point of chamber voltage withstanding test fixture 120 self exists, a lot of manufacturer has to abandon a point chamber pressure measurement, and 1.3 ~ 1.5 times values of the whole Multicarity pump housing according to its a certain maximum pressure pocket body running pressure are designed and tested, its result will cause the wall thickness of the cavity that pressure-bearing is little on the pump housing also must carry out extra thickening, thus whole design weight is increased, and causes the cost of production such as foundry goods, processing, transport sharply to rise.Particularly for expensive pump housing material, the increase of weight often brings larger cost pressure.
Model utility content
Based on this, be necessary to provide a kind of Multicarity pump housing point chamber voltage withstanding test fixture can offsetting seal load as far as possible.
A kind of Multicarity pump housing divides chamber voltage withstanding test fixture, comprising:
First point of chamber clamping plate, comprise first substrate and first and coordinate post, described first coordinates post to be the hollow cylinder structure being located at described first substrate side;
Second point of chamber clamping plate, comprise second substrate and second and coordinate post, described second coordinates post to be the hollow cylinder structure being located at described second substrate side; And
Fixing-assembly, for clamping described first substrate and described second substrate;
Post can be coordinated to coordinate the straight mouth of post to be connected with described second by described first between described first point of chamber clamping plate with described second point of chamber clamping plate; Coordinate post and described second to coordinate column sealing to coordinate by described first after described first point of chamber clamping plate are connected with described second point of straight mouth of chamber clamping plate and surround a counter balance pocket.
Wherein in an embodiment, described fixing-assembly comprises clamping screw rod and nut; Described clamping screw rod is fixedly connected with described first substrate; Described second substrate is provided with the fixed hole coordinated with described clamping screw rod; Described clamping screw rod is connected through screwing described first point of chamber clamping plate to clamp with described second point of chamber clamping plate by described nut after described fixed hole.
Wherein in an embodiment, described first coordinates post to be ledge structure away from the inwall of one end of described first substrate; Described second coordinates post to be ledge structure away from the outer wall of one end of described second substrate; Described second coordinates post can insert described first coordinates post interior and forms the cooperation of straight mouth by the ledge structure cooperatively interacted.
Wherein in an embodiment, described second coordinates the outer wall of post to offer seal groove, and is provided with seal ring in sealing groove, and described second cooperation post coordinates the inner wall sealing of post to abut by sealing circle and described first after inserting described first cooperation post.
Wherein in an embodiment, described first substrate coordinates the side of post to be provided with seal groove being provided with described first, and in sealing groove, being provided with seal ring abutting for sealing with the chamber wall of cavity to be tested; And/or described second substrate coordinates the side of post to be provided with seal groove being provided with described second, and in sealing groove, being provided with seal ring abutting for sealing with the chamber wall of cavity to be tested.
Wherein in an embodiment, a described Multicarity pump housing point chamber voltage withstanding test fixture also comprises secondary seal, and described secondary seal comprises fixing part and is located at the insertion part of described fixing part side; Described fixing part is fixedly connected with by screw with the outside of described second substrate; Described fixing part and described insertion part are provided with the through hole run through; Described insertion part can be inserted in described fixed hole; Described clamping screw rod is screwed by the side of described nut at described fixing part through after described second substrate and described secondary seal successively.
Wherein in an embodiment, described fixing part offers seal groove, and is provided with seal ring in sealing groove, and after described screw screws, described fixing part to be sealed with described second substrate by sealing circle and abuts; Described clamping screw rod is provided with seal groove, and is provided with seal ring in described seal groove, and described clamping screw rod is abutted through being sealed with the hole wall of described through hole by sealing circle after described through hole;
Wherein in an embodiment, the two ends of described fixed hole are heavy stand hole structure; Described clamping screw rod and described insertion part abut with the step wall at the two ends of described fixed hole respectively.
Wherein in an embodiment, the described Multicarity pump housing point chamber voltage withstanding test fixture also comprises the seal chamber blind plate of the suction chamber for sealing the Multicarity pump housing to be tested.
Wherein in an embodiment, a described Multicarity pump housing point chamber voltage withstanding test fixture also comprises balance pressure assembly, the equilibrium pressure solenoid that described balance pressure assembly comprises two joints and is located between two described joints; Described two joints insert in described second substrate and described seal chamber blind plate respectively, and are communicated with described counter balance pocket and ambient atmosphere respectively.
A above-mentioned Multicarity pump housing point chamber voltage withstanding test fixture (hereinafter referred to as voltage withstanding test fixture) can solve the Multicarity pump housing owing to being difficult to carry out a point chamber voltage-withstand test, whole pump must design according to the highest a certain pressurized cavity, thus cause the problem of production high cost, have the following advantages:
1) adopt pressure self-balancing design, the sealing reliability of voltage withstanding test fixture is high.When the structural design of voltage withstanding test fixture by building the method for the cavity (counter balance pocket) of a zero pressure in zone of high pressure, the used load achieving low pressure area and zone of high pressure balances mutually, this structure is even under the prerequisite not needing extra prefastened locking assembly, just can realize the effective compression between major seal faces, thus the sealability of sealing surface can be guaranteed all the time.
2) this self-balancing type voltage withstanding test fixture structure is simple, easy to assembly.Because voltage withstanding test fixture need be wrapped in the pump housing completely, if need the too much or excessive bolt that is tightly connected, the difficulty of installation certainly will be affected, but voltage withstanding test fixture structure of the present utility model adopts self-balancing type to design completely, therefore only need a fixing-assembly to play auxiliary assembling and act on.
3) adopt this pressure self-balancing formula point chamber fixture due to effectively voltage-withstand test can be carried out by separated for different cavity, thus the Multicarity pump housing solving different pressures grade is due to cannot normally point chamber test and must carry out to it problem that global design becomes a pressure rating, each chamber of the Multicarity pump housing can carry out wall thickness design according to the pressure rating of respective cavity completely respectively, so just can save material and cost of production from source, greatly improve the competitiveness of product in market.
4) this voltage withstanding test fixture not only can be applied to the withstand voltage pressure testing of the Multicarity pump housing, also can apply the voltage-withstand test with the Multicarity pressurized container of other type.
Accompanying drawing explanation
Fig. 1 is a kind of pump housing of double-suction multi-stage middle-opening pump and the structural representation of traditional point chamber voltage withstanding test fixture;
Fig. 2 is the structural representation of the voltage withstanding test fixture of the utility model one mode of execution;
Scheme of installation when Fig. 3 is for adopting the voltage withstanding test fixture shown in Fig. 2 to carry out voltage-withstand test in the pump housing of a double suction multistage middle open pump;
Fig. 4 is the stressed schematic diagram of the voltage withstanding test fixture when Fig. 3 tests.
Embodiment
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present utility model more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in specification of the present utility model herein just in order to describe specific embodiment, is not intended to be restriction the utility model.Term as used herein "and/or" comprises arbitrary and all combinations of one or more relevant Listed Items.
As shown in Figure 2, a Multicarity pump housing point chamber voltage withstanding test fixture 20 for a mode of execution comprises first point of chamber clamping plate 210, second point of chamber clamping plate 220, fixing-assembly 230, secondary seal 240, seal chamber blind plate 250, balance pressure assembly 260 and multiple seal ring 270.
First point of chamber clamping plate 210 comprises first substrate 211 and first and coordinates post 212.First coordinates post 212 for being located at the hollow cylinder structure of first substrate 211 side.First substrate 211 is provided with seal groove (not indicating in figure) in the side being provided with the first cooperation post 212, and in sealing groove, being provided with seal ring 270 abutting for sealing with the chamber wall of cavity to be tested.In the present embodiment, be formed in one between the first cooperation post 212 and first substrate 211 structure.First coordinates the inwall of post 212 in the one end away from first substrate 211 to be ledge structure.Further, in the present embodiment, in the first cooperation post 212, multiple first stiffening rib 213 is provided with, to ensure the structural strength of the first cooperation post 212 of hollow-core construction.
Second point of chamber clamping plate 220 comprises second substrate 221 and second and coordinates post 222.Second coordinates post 222 for being located at the hollow cylinder structure of second substrate 221 side.Second substrate 221 is provided with seal groove (not indicating in figure) in the side being provided with the second cooperation post 222, and in sealing groove, being provided with seal ring 270 abutting for sealing with the chamber wall of cavity to be tested.In the present embodiment, be formed in one between the second cooperation post 222 and second substrate 221 structure.Second coordinates the outer wall of post 222 in the one end away from second substrate 221 to be ledge structure.Further, in the present embodiment, in the second cooperation post 222, multiple second stiffening rib 223 is provided with, to ensure the structural strength of the second cooperation post 222 of hollow-core construction.
Second coordinates the ledge structure of post 212 outer wall to coordinate the ledge structure of post 212 inwall suitable with first, and second coordinates post 222 can be inserted in the first cooperation post 212, thus first point of chamber clamping plate 210 and second point of straight mouth of chamber clamping plate 220 is connected.After the straight mouth of first point of chamber clamping plate 210 and second point of chamber clamping plate 220 is connected, coordinates post 212 to coordinate post 222 to be sealed and matched with second by first surrounds a counter balance pocket 202.This counter balance pocket 202 keeps and ambient atmosphere pressure balanced.
Second coordinates the outer wall of post 222 to be provided with seal groove (not indicating in figure), and is provided with seal ring 270 in sealing groove.When second coordinates post 222 to insert after in the first cooperation post 212, the inner wall sealing of post 212 is coordinated to abut by sealing circle 270 and first.To coordinate sealability between post 222 with second for increasing by the first cooperation post 212, in the present embodiment, first coordinates post 212 to coordinate between post 222 with second arranges multi-turn seal ring 270.
Fixing-assembly 230 is for being fixedly clamped first substrate 211 and second substrate 221.In the present embodiment, fixing-assembly 230 comprises clamping screw rod 231 and nut 232.Clamping screw rod 231 is fixing and be tightly connected with first substrate 211, and the mode be fixedly connected with can be, but not limited to as screw thread is fixedly connected with or welding etc.Second substrate 221 is provided with the fixed hole (not indicating in figure) coordinated with clamping screw rod 231.Clamping screw rod 231 links together through screwing first point of chamber clamping plate 210 and second point of chamber clamping plate 220 to be fixedly clamped by nut 232 after fixed hole.
Secondary seal 240 comprises fixing part 241 and is located at the insertion part 242 of fixing part 241 side.Fixing part 241 is fixedly connected with by screw 243 with the outside of second substrate 221.Fixing part 241 and insertion part 242 are provided with the through hole (not indicating in figure) run through.Insertion part 242 can be inserted in the fixed hole of second substrate 221.Clamping screw rod 231 is screwed by the side of nut 232 at fixing part 241 through after second substrate 221 and secondary seal 240 successively.
In the present embodiment, fixing part 241 offers seal groove (not indicating in figure), and is provided with seal ring 270 in sealing groove.After screw 243 screws, fixing part 241 to be sealed with second substrate 221 by sealing circle 270 and abuts.Clamping screw rod 231 is provided with seal groove (not indicating in figure), and in seal groove, be provided with seal ring 270.Clamping screw rod 231 is abutted through being sealed with the hole wall of through hole by sealing circle 270 after through hole.The clamping screw rod 243 of present embodiment is provided with multi-turn seal groove, is provided with multi-turn seal ring 270 between corresponding clamping screw rod 231 and the hole wall of through hole.
Further, in the present embodiment, the two ends of fixed hole are heavy stand hole structure.The insertion part 242 of clamping screw rod 231 and secondary seal 240 abuts with the step wall at the two ends of fixed hole respectively, abuts, strengthen sealing effect to form non-rectilinear.
Seal chamber blind plate 250, for sealing the suction chamber of the Multicarity pump housing to be tested, is tightly connected by screw etc. with the ingress of suction chamber.
The equilibrium pressure solenoid 262 that balance pressure assembly 260 comprises two joints 261 and is located between two joints 261.Two joints 261 insert in second substrate 221 and seal chamber blind plate 250 respectively, and are communicated with counter balance pocket 202 and ambient atmosphere respectively.Equilibrium pressure solenoid 262 preferably adopts metallic hose, and it can ensure that counter balance pocket 202 is connected with ambient atmosphere, thus the pressure in counter balance pocket 202 can remain on a barometric pressure all the time, easy for installation to ensure.Meanwhile, when carrying out voltage-withstand test, if there is a little liquid to flow into counter balance pocket 202 from cavity to be measured, by this equilibrium pressure solenoid 262, liquid can also be discharged, thus making counter balance pocket 202 remain a barometric pressure.
This voltage withstanding test fixture 20 meets pump industry relevant design and testing standard, and structure stress is more reasonable, and point chamber sealing effect is more reliable.As shown in Figure 3, the enforcement carrying out the voltage-withstand test of a Multicarity pump housing 30 with this voltage withstanding test fixture 20 is suddenly as follows:
First by first of voltage withstanding test fixture 20 point of chamber clamping plate 210 during test, second point of chamber clamping plate 220, pine connects fixing-assembly 230, load lower pump body 310, then by secondary seal 240, joint 261, equilibrium pressure solenoid 262 and second point of chamber clamping plate 220 compact siro spinning technology fit together, then upper pump casing 320 is covered, then be tightened assembly 230, then the bolt opening face in upper pump casing 320 and lower pump body 310 is tightened, then other one end of equilibrium pressure solenoid 262 and a seal chamber blind plate 250 are connected, finally two seal chamber blind plates 250 are installed with upper pump casing 320 and lower pump body 310, water filling can be carried out, pressurization experiment.
After to rotor seal chamber 301, suction chamber 302, first order blade wheel chamber 303, second level blade wheel chamber 304 and third level blade wheel chamber 305 water filling, by compression pump simultaneously to its be slowly pressurized to rotor seal chamber 301, suction chamber 302, first order blade wheel chamber 303 and second level blade wheel chamber 304 maximum design pressure 1.3 ~ 1.5 times, then keep this pressure constant, then third level blade wheel chamber 305 is slowly pressurized to 1.3 ~ 1.5 times of its design pressure.
The main operational principle of this voltage withstanding test fixture 20 is exactly by adjusting first point of chamber clamping plate 210 and the acting surface product value of second point of chamber clamping plate 220 in different balance cavity, thus the used load value part in zone of high pressure and low district is cancelled out each other, and then guarantee just to realize naturally compressing of sealing surface when not needing excessive bolt load under pretension condition.
As shown in Figure 4, pressure in counter balance pocket 202 is a barometric pressure, be set to 0, suppose rotor seal chamber 301, suction chamber 302, first order blade wheel chamber 303 and second level blade wheel chamber 304 test pressure be pt1, the test pressure of third level blade wheel chamber 305 is pt2, stressed full symmetric on obvious first point of chamber clamping plate 210 and second point of chamber clamping plate 220, existing for first point of chamber clamping plate 210, the hydraulic pressure used load that its structure is born is:
Low pressure area to first point of chamber clamping plate 210 used load is to the right: F1=π * (D/2)
2* pt1; Zone of high pressure to first point of chamber clamping plate 210 used load is left: F2=π * [(D/2)
2-(D1/2)
2] * pt2, wherein, D is the diameter of first point of chamber clamping plate 210, and D1 is the diameters of first point of chamber clamping plate 210 in counter balance pocket 202.
For the specific Multicarity pump housing, the value of pt1 and pt2 is certain, and therefore when designing withstand voltage fixture, the value that only as far as possible need strengthen sealed diameter D1 just can realize pressure loading F1 and F2 and mutually balance, and even makes F1 > F2.Obviously, this design without the need to just can realize the mutual compression of 210, first point, first point of chamber clamping plate between chamber clamping plate 220 and the pump housing by huge bolt pretightening, thus substantially increases the sealing reliability energy of voltage withstanding test fixture 20.
During voltage-withstand test, after each chamber pressure all reaches test pressure value:
1) if each chamber pressure can remain to the time of correlation standard, and the pump housing is without obviously leaking outside, flawless, without bad plastic deformation and provable reliable design;
2) if each chamber pressure declines, and the pump housing leaks outside or crackle occurs, then say that product is defective, need repair, then again test the pump housing;
3) if when pressurize, each cavity without leaking outside, but has Pressure Drop slowly, illustrates may there be a little interior leakage between each cavity, now only need add a reduction valve between compression pump and cavity, and make compression pump continuous firing can realize each cavity pressurize road time rating.
This voltage withstanding test fixture 20 can solve the Multicarity pump housing owing to being difficult to carry out a point chamber voltage-withstand test, and whole pump must design according to the highest a certain pressurized cavity, thus causes the problem of production high cost, has the following advantages:
1) adopt pressure self-balancing design, the sealing reliability of voltage withstanding test fixture 20 is high.When the structural design of voltage withstanding test fixture 20 by building the method for the cavity (counter balance pocket) of a zero pressure in zone of high pressure, the used load achieving low pressure area and zone of high pressure balances mutually, this structure is even under the prerequisite not needing extra prefastened locking assembly 230, just can realize the effective compression between major seal faces, thus the sealability of sealing surface can be guaranteed all the time.
2) this self-balancing type voltage withstanding test fixture 20 structure is simple, easy to assembly.Because voltage withstanding test fixture 20 need be wrapped in the pump housing completely, if need the too much or excessive bolt that is tightly connected, the difficulty of installation certainly will be affected, but voltage withstanding test fixture 20 structure of the present utility model adopts self-balancing type to design completely, therefore only need a fixing-assembly 230 to play auxiliary assembling and act on.
3) adopt this pressure self-balancing formula voltage withstanding test fixture 20 due to effectively voltage-withstand test can be carried out by separated for different cavity, thus the Multicarity pump housing solving different pressures grade is due to cannot normally point chamber test and must carry out to it problem that global design becomes a pressure rating, each chamber of the Multicarity pump housing can carry out wall thickness design according to the pressure rating of respective cavity completely respectively, so just can save material and cost of production from source, greatly improve the competitiveness of product in market.
4) this voltage withstanding test fixture 20 not only can be applied to the withstand voltage pressure testing of the Multicarity pump housing, also can apply the voltage-withstand test with the Multicarity pressurized container of other type.
The above embodiment only have expressed several mode of execution of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. the Multicarity pump housing divides a chamber voltage withstanding test fixture, it is characterized in that, comprising:
First point of chamber clamping plate, comprise first substrate and first and coordinate post, described first coordinates post to be the hollow cylinder structure being located at described first substrate side;
Second point of chamber clamping plate, comprise second substrate and second and coordinate post, described second coordinates post to be the hollow cylinder structure being located at described second substrate side; And
Fixing-assembly, for clamping described first substrate and described second substrate;
Post can be coordinated to coordinate the straight mouth of post to be connected with described second by described first between described first point of chamber clamping plate with described second point of chamber clamping plate; Coordinate post and described second to coordinate column sealing to coordinate by described first after described first point of chamber clamping plate are connected with described second point of straight mouth of chamber clamping plate and surround a counter balance pocket.
2. the Multicarity pump housing as claimed in claim 1 divides chamber voltage withstanding test fixture, and it is characterized in that, described fixing-assembly comprises clamping screw rod and nut; Described clamping screw rod is fixedly connected with described first substrate; Described second substrate is provided with the fixed hole coordinated with described clamping screw rod; Described clamping screw rod is connected through screwing described first point of chamber clamping plate to clamp with described second point of chamber clamping plate by described nut after described fixed hole.
3. the Multicarity pump housing as claimed in claim 2 divides chamber voltage withstanding test fixture, it is characterized in that, described first coordinates post to be ledge structure away from the inwall of one end of described first substrate; Described second coordinates post to be ledge structure away from the outer wall of one end of described second substrate; Described second coordinates post can insert described first coordinates post interior and forms the cooperation of straight mouth by the ledge structure cooperatively interacted.
4. the Multicarity pump housing as claimed in claim 3 divides chamber voltage withstanding test fixture, it is characterized in that, described second coordinates the outer wall of post to offer seal groove, and seal ring is provided with in sealing groove, described second cooperation post coordinates the inner wall sealing of post to abut by sealing circle and described first after inserting described first cooperation post.
5. the Multicarity pump housing as claimed in claim 4 divides chamber voltage withstanding test fixture, it is characterized in that, described first substrate coordinates the side of post to be provided with seal groove being provided with described first, and in sealing groove, being provided with seal ring abutting for sealing with the chamber wall of cavity to be tested; And/or described second substrate coordinates the side of post to be provided with seal groove being provided with described second, and in sealing groove, being provided with seal ring abutting for sealing with the chamber wall of cavity to be tested.
6. the Multicarity pump housing as claimed in claim 5 divides chamber voltage withstanding test fixture, and it is characterized in that, also comprise secondary seal, described secondary seal comprises fixing part and is located at the insertion part of described fixing part side; Described fixing part is fixedly connected with by screw with the outside of described second substrate; Described fixing part and described insertion part are provided with the through hole run through; Described insertion part can be inserted in described fixed hole; Described clamping screw rod is screwed by the side of described nut at described fixing part through after described second substrate and described secondary seal successively.
7. the Multicarity pump housing as claimed in claim 6 divides chamber voltage withstanding test fixture, it is characterized in that, described fixing part offers seal groove, and is provided with seal ring in sealing groove, after described screw screws, described fixing part to be sealed with described second substrate by sealing circle and abuts; Described clamping screw rod is provided with seal groove, and is provided with seal ring in described seal groove, and described clamping screw rod is abutted through being sealed with the hole wall of described through hole by sealing circle after described through hole.
8. the Multicarity pump housing as claimed in claim 7 divides chamber voltage withstanding test fixture, and it is characterized in that, the two ends of described fixed hole are heavy stand hole structure; Described clamping screw rod and described insertion part abut with the step wall at the two ends of described fixed hole respectively.
9. the Multicarity pump housing as claimed in claim 8 divides chamber voltage withstanding test fixture, it is characterized in that, also comprising the seal chamber blind plate of the suction chamber for sealing the Multicarity pump housing to be tested.
10. the Multicarity pump housing as claimed in claim 9 divides chamber voltage withstanding test fixture, it is characterized in that, also comprises balance pressure assembly, the equilibrium pressure solenoid that described balance pressure assembly comprises two joints and is located between two described joints; Described two joints insert in described second substrate and described seal chamber blind plate respectively, and are communicated with described counter balance pocket and ambient atmosphere respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420832996.8U CN204371707U (en) | 2014-12-23 | 2014-12-23 | The Multicarity pump housing divides chamber voltage withstanding test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420832996.8U CN204371707U (en) | 2014-12-23 | 2014-12-23 | The Multicarity pump housing divides chamber voltage withstanding test fixture |
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| Publication Number | Publication Date |
|---|---|
| CN204371707U true CN204371707U (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420832996.8U Expired - Fee Related CN204371707U (en) | 2014-12-23 | 2014-12-23 | The Multicarity pump housing divides chamber voltage withstanding test fixture |
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| CN (1) | CN204371707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535266A (en) * | 2014-12-23 | 2015-04-22 | 安德里茨（中国）有限公司 | Clamp for sub-cavity pressure-resistant test of multi-cavity pump body |
-
2014
- 2014-12-23 CN CN201420832996.8U patent/CN204371707U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535266A (en) * | 2014-12-23 | 2015-04-22 | 安德里茨（中国）有限公司 | Clamp for sub-cavity pressure-resistant test of multi-cavity pump body |
| CN104535266B (en) * | 2014-12-23 | 2017-01-25 | 安德里茨（中国）有限公司 | Clamp for sub-cavity pressure-resistant test of multi-cavity pump body |
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