CN201740495U - Water pump balance disc gap testing device - Google Patents
Water pump balance disc gap testing device Download PDFInfo
- Publication number
- CN201740495U CN201740495U CN2010202998043U CN201020299804U CN201740495U CN 201740495 U CN201740495 U CN 201740495U CN 2010202998043 U CN2010202998043 U CN 2010202998043U CN 201020299804 U CN201020299804 U CN 201020299804U CN 201740495 U CN201740495 U CN 201740495U
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- China
- Prior art keywords
- sounding rod
- steel ball
- water pump
- balancing frame
- groove
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- Expired - Fee Related
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Abstract
The utility model discloses a water pump components gap testing device, especially a water pump balance disc gap testing device. The utility model is characterized in that steel balls are placed in the groove disposed at the left end of a measuring rod; the internal thread of the steel-ball gland cooperates with the external thread of the measuring rod; a compressing spring is sleeved by the circular groove of the measuring rod and that of a support sleeve which correspond to each other; the measuring rod and the support sleeve are in a clearance fit; graduation mark is disposed at the right side of the right end face of the support sleeve; the value of the graduation mark aligned with the right end face of the support sleeve is the abrasion loss of a balance disc. The utility model has advantages of simple structure, easy implementation, direct and fast testing, and accurate measuring result.
Description
Technical field
The utility model relates to a kind of pump part clearance test device, particularly relates to a kind of water pump balancing frame clearance test device.
Background technology
During pump working, impeller produces axial force in operation process, and many more its axial forces of the progression of pump are just big more, in order to keep the normal operation of water pump, must take appropriate measures balancing axial thrust, adopt the balancing frame device to come balancing axial thrust at present usually.Come out to have the water of pressure from impeller, through adjusting in the hydroecium before the cover radial play flows into balancing frame, hydroecium is in high pressure conditions, behind balancing frame, there is balance pipe to link to each other with pump entrance, its pressure is similar to inlet pressure, the pressure of balancing frame both sides does not wait like this, has produced thrust backward, i.e. equilibrant.Two seal clearances are arranged in this balance device, and one is the radial play between the pump housing and the axle sleeve, and another is the end play between balancing frame end face and the flat horizontal ring end face.If the axial force that a certain operating mode impellers at different levels bear increases, at this moment end play reduces, thereby the equilibrant of balancing frame is increased thereupon, reaches self-poise.On the contrary, when the axial force of bearing when impellers at different levels reduced, end play increased, thereby the equilibrant of balancing frame is reduced thereupon, also reaches self-poise.Axial force changes the axial displacement that causes rotor, and its displacement equals balancing frame end play variable quantity.Along with the increase of axial force, end play reduces, and when end play went to zero, wearing and tearing were given birth in balancing frame and balance environment-development.When the wear extent of balancing frame surpasses certain limit, will cause the water inlet of impeller water delivering orifice substantial deviation water deflector, worsen flow condition, the water pump drainage efficiency descends.
A kind of balancing frame axial location determinator has been described among the Chinese patent ZL 200520078342.1, be included in the pump shaft anti-drive end and be provided with mounting hole, stud with ball in it, be provided with the ball ball between the end face of ball and the tappet, the bearing body end cap is connected and the pump housing, tappet is provided with holddown spring, axial compression ball ball, tappet passes from the bearing body end cap, and bearing body end cap and gland are connected, and the endoporus of bearing body end cap and gland is combined into the pilot hole of tappet, be provided with feather key between the endoporus of gland and the tappet, drive block cooperates with taper hole with the end of tappet, and nut compressing is arranged, and is provided with shaft position sensor on drive block.This apparatus structure more complicated is installed cumbersomely, and shaft position sensor is installed on drive block, tests axial displacement by sensor, measures not directly perceived.
The utility model content
The technical problems to be solved in the utility model is to overcome the problem that known technology exists, and realizes water pump quick, the intuitive and accurate measurement in balancing frame gap.
For solving the problems of the technologies described above, the technical solution of the utility model is: there is a groove nest 10 at the center, left side of cylindrical sounding rod 4, and there is a bayonet socket that is complementary with the sphere of steel ball 2 at the center of steel ball gland 3, and steel ball 2 is installed in the groove nest 10, freely rotates.On the left end step surface of sounding rod and the opposing end surface of support set 6 ring groove 11 is arranged all, compression spring 9 is fixed in the ring groove 11.Under the effect of compression spring 9, steel ball 2 is close on the pump shaft 1.Support on the sounding rod 4 that there is scale mark 7 on the right side of cover 6, when balancing frame does not have wearing and tearing, the right side 8 of supporting member 6 and zero groove alignment.
In this device, there is a groove nest 10 at the center, left side of sounding rod 4, and groove nest 10 is complementary with the sphere of steel ball 2, and there is a bayonet socket at steel ball gland 3 centers, and the bayonet socket diameter is less than the diameter of steel ball 2, and the sphere of bayonet socket annular surface and steel ball 2 is complementary.The screw-internal thread fit of the external thread of sounding rod 4 and steel ball gland 3, steel ball 2 is placed in the groove nest 10 and can freely rotates.
In this device, the groove that the center of pump shaft 1 and the opposing end surface of sounding rod 4 can have a sphere with steel ball 2 to be complementary can not have yet.
This water pump balancing frame clearance test device can also use two identical hemisphere and the slide block 12 that right cylinder combines, circular diameter of the cylindrical end equals the diameter of hemisphere, the sphere of cylindrical curved surface and hemisphere is complementary, and the right cylinder bus length is greater than the diameter of hemisphere.There is a bayonet socket at the center of gland 13, the cylinder curved surface of bayonet socket curved surface and slide block 12 is complementary, bayonet socket length is less than the cylinder bus length of slide block 12, the bayonet socket at slide block 12 and gland 13 centers is for being slidingly matched, the external thread of the internal thread of slide block 13 and sounding rod 4 matches, slide block 12 is placed in the groove nest 10 at sounding rod 4 left end centers, and slide block is free to slide.On the opposing end surface of the left end step surface of sounding rod 4 and support set 6 ring groove is arranged, compression spring cover 9 is contained in the ring groove 11.Under the effect of compression spring 9, slide block is close on the pump shaft 1.Guaranteed the accuracy of measuring.
In this device, the right side of sounding rod 4 upper supports cover 6 is scale marks 7, when balancing frame does not have wearing and tearing, the right side 8 of support set 6 and zero groove alignment, when balance disk wear, sounding rod is moved to the left, and scale mark 7 is moved to the left thereupon, at this moment, the value of the scale mark that aligns with the right side 8 of support set 6 is exactly the wear extent of balancing frame.
The beneficial effects of the utility model are:
1) this apparatus structure is simple, and building block is few, installation, easy to use, easy to implement.
2) wear extent of balancing frame can directly be observed by scale mark 7, observes, measures directly perceived.Because steel ball 2 is close on the pump shaft 1 all the time, sounding rod can move freely, so it is accurate to measure the gained data.
3) adopt this device can be easy, quickly the abrasion condition of balancing frame is measured, the less greatly measurement termination of pumping time, by observing the protruded length of sounding rod, the water pump maintainer can in time adjust it according to the abrasion condition of balancing frame and safeguard at any time, improve the operational efficiency of water pump, prolonged the serviceable life of accessory.
Description of drawings
Fig. 1 is the utility model water pump balancing frame clearance test device embodiment 1 structural representation.
Fig. 2 is the utility model water pump balancing frame clearance test device embodiment 2 part-structure synoptic diagram.
Fig. 3 is the utility model water pump balancing frame clearance test device embodiment 3 part-structure synoptic diagram.
Embodiment
Embodiment 1: referring to Fig. 1,1 is pump shaft among the figure, and 2 is steel ball, and 3 is the steel ball gland, and 4 is sounding rod, and 5 is bearing gland, and 6 is complete for propping up, and 7 is scale mark, and 8 is the right side, and 9 is compression spring, and 10 is the groove nest, and 11 is ring groove.
There is a groove nest 10 at the center, left side of sounding rod 4, and groove nest 10 is complementary with the sphere of steel ball 2.There is a groove that is complementary with the sphere of steel ball 2 at the center of pump shaft 1 and sounding rod 4 corresponding end faces.There is a bayonet socket at the center, left side of steel ball gland 3, and the bayonet socket diameter is less than the diameter of steel ball 2, and the sphere of bayonet socket annular surface and steel ball 2 is complementary.Steel ball 2 be placed on screw on steel ball gland 3 in the groove nest 10 after, steel ball 2 can freely rotate.The external thread of sounding rod 4 matches with the internal thread of steel ball gland 3.Be equipped with ring groove 11 on the left end step surface of sounding rod 4 and the opposing end surface of support set 6, compression spring 9 is sleeved in the ring groove 11.The right side of sounding rod 4 upper supports cover 6 is scale marks 7, and the left end first road groove is zero groove, and last one groove of right-hand member represented the limit position groove of balance disk wear.When balancing frame does not have wearing and tearing, the right side 8 of sounding rod 4 and zero groove alignment.Support set 6 matches by the internal thread of external thread with bearing gland 5 centers, and sounding rod 4 and support set 6 are for being slidingly matched.
Embodiment 2: substantially the same manner as Example 1, referring to Fig. 2, among the figure, pump shaft 1 is the plane with sounding rod 4 corresponding end faces, does not have groove.There is a groove nest 10 at the center, left side of sounding rod 4, and there is a bayonet socket at the center, left side of steel ball gland 3, and the sphere of bayonet socket annular surface and steel ball 2 is complementary, and steel ball 2 is placed in the groove nest 10, can freely rotate.
Embodiment 3: substantially the same manner as Example 1, difference is referring to Fig. 3, and among the figure, slide block 12 has two identical hemispheres and a right cylinder to constitute, circular diameter of the cylindrical end and hemisphere equal diameters, cylinder curved surface and hemisphere sphere are complementary.There is a bayonet socket at the center of gland 13, and the face of cylinder of bayonet socket curved surface and slide block 12 is complementary.Slide block 12 is placed in the groove nest 10 and can be free to slide.In addition, under the effect of gland 13, even if device has certain inclination angle, slide block 12 can not drop out yet.
During use, if want to record the exact value of balance disk wear amount, can shut down water pump, pump shaft 1 is pushed into the suction side position, make balancing frame and balance loop contacts, at this moment the value of the scale mark 7 that aligns with the A end face 8 of support set 6 is the wear extent of balancing frame.
Claims (10)
1. water pump balancing frame clearance test device, contain support set, sounding rod, compression spring, it is characterized in that: there is a spherical groove nest (10) at the center, left side of sounding rod (4), there is a bayonet socket that is complementary with the sphere of steel ball (2) at the center of steel ball gland (3), steel ball (2) is installed in the groove nest (10), the right side of sounding rod (4) upper support cover (6) is scale mark (7), the center pit of sounding rod (4) and support set (6) is a clearance fit, ring groove (11) is all arranged on the opposing end surface of the left end step surface of sounding rod (4) and support set (6), and compression spring (9) is sleeved in the ring groove (11).
2. water pump balancing frame clearance test device as claimed in claim 1, it is characterized in that: steel ball (2) is for spherical, there is a bayonet socket at the center of steel ball gland (3), the bayonet socket diameter is less than the diameter of steel ball (2), the bayonet socket of steel ball gland (3) is positioned at the left hemisphere of steel ball (2), and the left hemisphere face of bayonet socket annular surface and steel ball (2) is complementary.
3. water pump balancing frame clearance test device as claimed in claim 1 or 2 is characterized in that: the external thread of the internal thread of steel ball gland (3) and sounding rod (4) matches, and steel ball (2) freely rotates in groove nest (10).
4. water pump balancing frame clearance test device as claimed in claim 1 is characterized in that: there is a groove that is complementary with the sphere of steel ball (2) at pump shaft (1) and the center of the corresponding end face of sounding rod (4).
5. water pump balancing frame clearance test device as claimed in claim 1 is characterized in that: pump shaft (1) is the plane with the corresponding end face of sounding rod (4).
6. water pump balancing frame clearance test device as claimed in claim 1, it is characterized in that: sounding rod (4) is cylindric, and its left end is step-like, and there is scale mark (7) on the right side of sounding rod (4) upper support cover (6), when balancing frame does not have wearing and tearing, right side (8) and zero groove alignment.
7. water pump balancing frame clearance test device, contain support set, sounding rod, compression spring, it is characterized in that: there is a spherical groove nest (10) at the center, left side of sounding rod (4), the external thread of the internal thread of gland (13) and sounding rod (4) matches, slide block (12) is installed in the groove nest (10), be free to slide, the right side of sounding rod (4) upper support cover (6) is scale mark (7), the center pit of sounding rod (4) and support set (6) is a clearance fit, on the opposing end surface of the left end step surface of sounding rod (4) and support set (6) ring groove (11) is arranged all, and compression spring (9) is sleeved in the ring groove (11).
8. water pump balancing frame clearance test device as claimed in claim 7, it is characterized in that: slide block (12) is combined by two identical hemisphere and a right cylinder, circular diameter of the cylindrical end equals the diameter of hemisphere, and the sphere of right cylinder curved surface and hemisphere is complementary.
9. water pump balancing frame clearance test device as claimed in claim 7, it is characterized in that: there is a bayonet socket at the center of gland (13), the cylinder curved surface of bayonet socket curved surface and slide block (12) is complementary, bayonet socket length is less than the cylinder bus length of slide block (12), the bayonet socket at slide block (12) and gland (13) center is for being slidingly matched, slide block (12) is installed in the groove nest (10) at sounding rod (4) left end center, and slide block (12) is free to slide.
10. water pump balancing frame clearance test device as claimed in claim 7, it is characterized by: sounding rod (4) is cylindric, and its left end is step-like, and there is scale mark (7) on the right side of sounding rod (4) upper support cover (6), when balancing frame does not have wearing and tearing, right side (8) and zero groove alignment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202998043U CN201740495U (en) | 2010-08-23 | 2010-08-23 | Water pump balance disc gap testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202998043U CN201740495U (en) | 2010-08-23 | 2010-08-23 | Water pump balance disc gap testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201740495U true CN201740495U (en) | 2011-02-09 |
Family
ID=43555771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202998043U Expired - Fee Related CN201740495U (en) | 2010-08-23 | 2010-08-23 | Water pump balance disc gap testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201740495U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936696A (en) * | 2010-08-23 | 2011-01-05 | 永城煤电控股集团有限公司 | Water pump balance disc gap testing device |
| CN111089811A (en) * | 2019-12-25 | 2020-05-01 | 浙江浙能兰溪发电有限责任公司 | Wear detection method for nozzle ring of roller disc type coal mill |
-
2010
- 2010-08-23 CN CN2010202998043U patent/CN201740495U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936696A (en) * | 2010-08-23 | 2011-01-05 | 永城煤电控股集团有限公司 | Water pump balance disc gap testing device |
| CN111089811A (en) * | 2019-12-25 | 2020-05-01 | 浙江浙能兰溪发电有限责任公司 | Wear detection method for nozzle ring of roller disc type coal mill |
| CN111089811B (en) * | 2019-12-25 | 2022-04-22 | 浙江浙能兰溪发电有限责任公司 | Wear detection method for nozzle ring of roller disc type coal mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20110823 |