CN210738795U - Canned motor pump axial force testing arrangement - Google Patents
Canned motor pump axial force testing arrangement Download PDFInfo
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- CN210738795U CN210738795U CN201921910553.5U CN201921910553U CN210738795U CN 210738795 U CN210738795 U CN 210738795U CN 201921910553 U CN201921910553 U CN 201921910553U CN 210738795 U CN210738795 U CN 210738795U
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Abstract
The utility model discloses an electric pump axial force testing arrangement, include: one end of the connecting rod is coaxially and fixedly connected to a rotating shaft of the electric pump; a first sealing mechanism; the inner ring of the rotating bearing is fixedly arranged at the other end of the connecting rod; one end of the rotary transition piece is fixedly sleeved on the outer ring of the rotating bearing; the second sealing mechanism penetrates through the rotating transition piece and is arranged on the first sealing mechanism in a sliding supporting mode; a bellows; a lever supported on the first sealing mechanism and having one end connected to the other end of the swivel transition piece; and a measuring mechanism. The problem of liquid seal in the axial force test process of the electric pump is solved, the pressure value and the torque value in the axial direction are accurately tested, and the influence on the axial force test result of the electric pump caused by liquid leakage in the test process is avoided.
Description
Technical Field
The utility model relates to a canned motor pump axial force testing arrangement belongs to machinery.
Background
The liquid sealing problem in the process of testing the axial force of the electric pump is always an important factor influencing the accuracy of the axial force of the electric pump, and liquid leakage in the testing process not only influences the testing pressure value, but also influences the testing torque, so that the testing result of the axial force of the electric pump is greatly influenced.
When the canned motor pump operates, axial force can be generated due to asymmetric pressure born by two sides of a motor pump impeller, and the service life of a bearing can be rapidly reduced due to overlarge axial force, so that the load of a thrust bearing is increased, and the motor pump cannot normally operate. Therefore, a testing device is needed, which can solve the problem of liquid sealing in the process of testing the axial force of the electric pump, accurately test a pressure value and a torque value, and avoid the influence on the test result of the axial force of the electric pump caused by liquid leakage in the test process.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a develop a canned motor pump axial force testing arrangement, sealed not tight in through can overcoming the canned motor pump axial force test procedure, influence test torque's problem.
Another object of the present invention is to provide a portable electronic device, which can measure the pressure by connecting the second through hole to the pressure gauge
The utility model provides a technical scheme does:
a canned motor pump axial force testing apparatus, comprising:
a first sealing mechanism disposed on top of the electric pump;
the first through hole is formed in the center of the first sealing mechanism;
the connecting rod is coaxially arranged in the first through hole, and one end of the connecting rod is coaxially and fixedly connected with the electric pump rotating shaft;
the inner ring of the rotating bearing is fixedly arranged at the other end of the connecting rod;
one end of the rotary transition piece is fixedly sleeved on the outer ring of the rotating bearing and is coaxially arranged with the connecting rod;
the second sealing mechanism penetrates through the rotating transition piece and is arranged on the first sealing mechanism in a sliding supporting mode;
a third sealing mechanism disposed between the second sealing mechanism and the rotating transition piece;
the corrugated pipe is arranged between the first sealing mechanism and the second sealing mechanism, and one end of the corrugated pipe is communicated with the first through hole;
a lever supported on the first sealing mechanism and having one end connected to the other end of the swivel transition piece;
and the measuring mechanism is arranged on the first sealing mechanism and is connected with the other end of the lever.
Preferably, the method further comprises the following steps:
the second through hole is formed in the second sealing mechanism, and one end of the second through hole is communicated with the other end of the corrugated pipe;
and one end of the pressure gauge is communicated with the other end of the second through hole.
Preferably, the first sealing mechanism includes:
the first sealing flange is fixedly arranged at the top of the electric pump, and a first flange hole is formed in the center of the first sealing flange;
the second sealing flange is coaxially and fixedly arranged on the first sealing flange, and a second flange hole is formed in the center of the second sealing flange;
the first sealing flange hole and the second sealing flange hole are coaxially arranged and form a first through hole.
Preferably, the third sealing mechanism comprises;
a seal ring sleeved on the rotating transition piece;
and the sealing end cover penetrates through the rotating transition piece and is fixedly arranged at the top of the second sealing mechanism.
Preferably, the method further comprises the following steps:
and one end of each support rod is fixedly arranged on the first sealing flange, and the other end of each support rod is connected with the second sealing mechanism in a sliding manner.
Preferably, the two support rods are respectively located at two sides of the second sealing flange.
Preferably, a lifting ring is fixedly arranged at the top of the rotating transition piece.
Preferably, the method further comprises the following steps:
and the supporting rod is fixedly arranged on the first sealing flange and is positioned between the supporting rod and the measuring mechanism.
Preferably, the measuring mechanism includes:
the adjusting nut is supported and arranged on the first sealing mechanism and is provided with an internal thread;
the first pressure rod is provided with an external thread at one end and is matched and arranged at the internal thread;
a pressure sensor, the bottom of which is arranged on the other end of the first pressure rod;
and one end of the second pressure rod is arranged at the top of the pressure sensor, and the other end of the second pressure rod is fixedly connected with one end of the lever.
Preferably, the other end of the lever penetrates through the top of the support rod and the hanging ring in sequence and then is fixed with the top of the support rod.
Beneficial effect: the electric pump axial force testing device adopts the technology of combining the corrugated pipe and the sealing ring to carry out liquid sealing and displacement testing, the pressure is tested through the pressure gauge, the liquid sealing problem in the electric pump axial force testing process is solved, the pressure value and the torque value are accurately tested, and the influence on the electric pump axial force testing result caused by liquid leakage in the testing process is avoided. The accuracy and the work efficiency of the inspection are greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of the canned motor pump testing apparatus of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
As shown in fig. 1-2, the utility model provides a canned motor pump axial force testing arrangement, include: the electric pump 100, the first sealing flange 210, the second sealing flange 220, the support rod 240, the strut 250, the third sealing flange 410, the connecting rod 310, the bellows 320, the rotational bearing 330, the rotational transition piece 340, the pressure gauge 500, the pressure sensor 630, and the lever 700.
One end of the connecting rod 340 is coaxially and fixedly connected with the electric pump rotating shaft 110, a first through hole is formed in the middle of the first sealing mechanism, the first sealing mechanism is fixedly arranged at the top of the electric pump 100 after the first through hole penetrates through the connecting rod 340, and the connecting rod 340 is coaxially arranged in the first through hole. A rotating bearing 330 is arranged at the other end of the connecting rod 340, an inner ring of the rotating bearing 330 is arranged at the other end of the connecting rod 340, one end of the rotating transition piece 340 is fixedly sleeved on an outer ring of the rotating bearing 330, a second sealing mechanism penetrates through the rotating transition piece 340 and then is slidably supported on the first sealing mechanism, and a third sealing mechanism is arranged between the second sealing mechanism and the rotating transition piece 340; a second through hole 440 is formed in the second sealing mechanism, and one end of the second through hole is communicated with a pressure gauge. A corrugated pipe 320 is further arranged between the first sealing mechanism and the second sealing mechanism, one end of the corrugated pipe is communicated with the first through hole, and the other end of the corrugated pipe is communicated with the second through hole 440. The lever 700 is supported on the first sealing mechanism, one end of the lever is connected with the rotating transition piece, and the other end of the lever is connected with the testing mechanism.
In the present invention, as a preferable choice, the bellows 320 is made of a stainless elastic bellows.
The first sealing mechanism includes: the electric pump comprises a first sealing flange 210, a second sealing flange 220 and a sealing rubber gasket 230 arranged between the first sealing flange 210 and the second sealing flange 220, wherein a first flange hole is formed in the first sealing flange 210, the first flange hole 210 penetrates through a connecting rod 310 and then is fixedly arranged at the top of the electric pump 100, a second flange hole is formed in the second sealing flange 220, the second flange hole 220 penetrates through the connecting rod 310 and then is fixedly arranged on the first sealing flange, and the first flange hole and the second flange hole form a first through hole.
In the present invention, it is preferable that the diameter of the first flange hole 210 is larger than the diameter of the connecting rod 310, and the diameter of the second flange hole 220 is larger than the diameter of the connecting rod 310.
Two supports 240 are fixedly arranged on the first sealing flange 210 at two sides of the electric pump 100, and are symmetrically arranged, and a second sealing mechanism is slidably connected at one end of each of the two supports 240. The second sealing mechanism comprises a third sealing flange 410, a third flange hole is formed in the third sealing flange 410, after the third flange hole penetrates through the rotary transition piece 340, the third sealing flange 410 is in sliding connection with one end of the supporting rod 240, and the third sealing mechanism comprises a sealing ring 420 and a sealing cover 430; a sealing ring 420 is arranged between the third flange hole and the rotating transition piece 340, a sealing cover 430 is further arranged on the top of the third sealing flange 410, the sealing cover 430 is fixed on the top of the third sealing flange 410 and tightly presses the sealing ring 420, and a hanging ring 350 is further arranged on the top of the rotating transition piece 340.
The second through hole 440 is opened on the third sealing flange 410 and located at one side of the third sealing flange hole 410, one end of the bellows 320 is communicated with the first through hole, the other end is communicated with one end of the second through hole 440, and the other end of the second through hole 440 is further communicated with the pressure gauge 500.
One side of the supporting rod 250 is positioned on the first sealing flange 210, the supporting rod 250 is further fixedly arranged, one side of the supporting rod 250 is provided with a measuring mechanism, one end of the lever 700 is connected with the measuring mechanism, and the other end of the lever 700 is fixed with the top of the supporting rod 250 through a pin after sequentially penetrating through the supporting rod 250 and the hanging ring.
The measuring mechanism includes: the adjusting device comprises an adjusting nut 610, a first pressure rod 620, a pressure sensor 630 and a second pressure rod 640, wherein the adjusting nut 610 is supported and arranged on the first sealing flange 210, the adjusting nut 610 is provided with internal threads, one end of the first pressure rod 620 is provided with external threads, and the first pressure rod 620 is matched and arranged at the internal threads. One end of the pressure sensor 630 is arranged on the first pressure rod 620, the other end of the pressure sensor 630 is connected with one end of the second pressure rod 640, the other end of the second pressure rod 640 is fixedly connected with one end of the lever 700, and the pressure sensor 630 is further connected with a force value digital display meter 800.
The working process is as follows: after the device is installed, the adjusting nut 610 is adjusted to enable the play gap to be 1/2 and enable the force value digital display meter 800 to be zero after the axial force measuring device is installed;
the air in the canned motor pump is completely discharged through the pressure gauge 500, so that the canned motor pump is filled with water, and the internal pressure of the canned motor pump is adjusted;
starting a canned motor pump to adjust to rated lift and flow, testing and recording a reading; because the lever has a small deformation, the axial movement has a small displacement, and the practical application value of the corrugated pipe is reflected.
The electric pump axial force testing device can solve the problem of liquid sealing in the electric pump axial force testing process, accurately test a pressure value and a torque value, and avoid the influence on the electric pump axial force testing result caused by liquid leakage in the testing process. The accuracy and the work efficiency of the inspection are greatly improved.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (10)
1. A canned motor pump axial force testing device, characterized by comprising:
a first sealing mechanism disposed on top of the electric pump;
the first through hole is formed in the center of the first sealing mechanism;
the connecting rod is coaxially arranged in the first through hole, and one end of the connecting rod is coaxially and fixedly connected with the electric pump rotating shaft;
the inner ring of the rotating bearing is fixedly arranged at the other end of the connecting rod;
one end of the rotary transition piece is fixedly sleeved on the outer ring of the rotating bearing and is coaxially arranged with the connecting rod;
the second sealing mechanism penetrates through the rotating transition piece and is arranged on the first sealing mechanism in a sliding supporting mode;
a third sealing mechanism disposed between the second sealing mechanism and the rotating transition piece;
the corrugated pipe is arranged between the first sealing mechanism and the second sealing mechanism, and one end of the corrugated pipe is communicated with the first through hole;
a lever supported on the first sealing mechanism and having one end connected to the other end of the swivel transition piece;
and the measuring mechanism is arranged on the first sealing mechanism and is connected with the other end of the lever.
2. The canned motor pump axial force testing apparatus of claim 1, further comprising:
the second through hole is formed in the second sealing mechanism, and one end of the second through hole is communicated with the other end of the corrugated pipe;
and one end of the pressure gauge is communicated with the other end of the second through hole.
3. The canned motor pump axial force testing apparatus of claim 2, wherein the first sealing mechanism comprises:
the first sealing flange is fixedly arranged at the top of the electric pump, and a first flange hole is formed in the center of the first sealing flange;
the second sealing flange is coaxially and fixedly arranged on the first sealing flange, and a second flange hole is formed in the center of the second sealing flange;
the first sealing flange hole and the second sealing flange hole are coaxially arranged and form a first through hole.
4. The canned motor pump axial force testing apparatus of claim 3, wherein the third sealing mechanism comprises;
a seal ring sleeved on the rotating transition piece;
and the sealing end cover penetrates through the rotating transition piece and is fixedly arranged at the top of the second sealing mechanism.
5. The canned motor pump axial force testing apparatus of claim 4, further comprising:
and one end of each support rod is fixedly arranged on the first sealing flange, and the other end of each support rod is connected with the second sealing mechanism in a sliding manner.
6. The canned motor pump axial force testing apparatus of claim 5, wherein the two support rods are respectively located at two sides of the second sealing flange.
7. The canned motor pump axial force testing device of claim 6, wherein a lifting ring is fixedly arranged at the top of the rotary transition piece.
8. The canned motor pump axial force testing apparatus of claim 7, further comprising:
and the supporting rod is fixedly arranged on the first sealing flange and is positioned between the supporting rod and the measuring mechanism.
9. The canned motor pump axial force testing apparatus of claim 8, wherein the measuring mechanism comprises:
the adjusting nut is supported and arranged on the first sealing mechanism and is provided with an internal thread;
the first pressure rod is provided with an external thread at one end and is matched and arranged at the internal thread;
a pressure sensor, the bottom of which is arranged on the other end of the first pressure rod;
and one end of the second pressure rod is arranged at the top of the pressure sensor, and the other end of the second pressure rod is fixedly connected with one end of the lever.
10. The canned motor pump axial force testing device of claim 9, wherein the other end of the lever is fixed to the top of the support rod after passing through the top of the support rod and the hanging ring in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921910553.5U CN210738795U (en) | 2019-11-07 | 2019-11-07 | Canned motor pump axial force testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921910553.5U CN210738795U (en) | 2019-11-07 | 2019-11-07 | Canned motor pump axial force testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210738795U true CN210738795U (en) | 2020-06-12 |
Family
ID=70986394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921910553.5U Active CN210738795U (en) | 2019-11-07 | 2019-11-07 | Canned motor pump axial force testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210738795U (en) |
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2019
- 2019-11-07 CN CN201921910553.5U patent/CN210738795U/en active Active
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