CN215030114U - Running torque measuring device of centrifugal machine - Google Patents
Running torque measuring device of centrifugal machine Download PDFInfo
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- CN215030114U CN215030114U CN202120214410.1U CN202120214410U CN215030114U CN 215030114 U CN215030114 U CN 215030114U CN 202120214410 U CN202120214410 U CN 202120214410U CN 215030114 U CN215030114 U CN 215030114U
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Abstract
The device is arranged at the mechanical safety system part of the centrifugal machine and comprises a fixed sleeve, a sensor, a positioning plate, a pressing plate, a buffer sleeve and a connecting rod; the fixed sleeve is arranged at the output end of the centrifuge, the positioning plate is arranged at the lower part of the fixed sleeve, the fixed sleeve is arranged on a frame of the centrifuge, and the sensor is connected with the torque digital display meter; the fixed end of the sensor is arranged on the fixed sleeve through a connecting piece; the pressure plate is arranged on the upper portions of the two support rods, the buffer sleeve is arranged between the two support rods below the pressure plate, the connecting rod penetrates through the buffer sleeve, and the lower portion of the free end of the connecting rod is in contact with the measuring end of the sensor. The utility model has the advantages of simple structure, convenient installation, accurate measurement, noise reduction and the like, greatly improves the feeding control precision of the centrifuge, and enables the centrifuge to exert the maximum processing capacity; the scheme is researched by the applicant after long-term practice, and the effect is obvious after the installation test.
Description
Technical Field
The utility model relates to a measuring equipment, specifically speaking are centrifuge's running torque measuring device. The device is installed at the mechanical safety system part of the centrifuge, and the conversion of the torque of the centrifuge is realized by measuring the operating pressure of the centrifuge.
Background
The centrifugal machine is dewatering and desliming recovery equipment commonly used in the coal dressing and mineral dressing industries, in order to ensure that the centrifugal machine can exert the maximum processing capacity without overload, the load condition of the centrifugal machine needs to be monitored accurately in real time, then the feeding amount of the centrifugal machine is controlled according to monitoring data, the output torque of the centrifugal machine needs to be known when the load condition is monitored, and the conventional torque measurement mode is to realize the conversion of the torque of the centrifugal machine by measuring the running pressure of the centrifugal machine.
The sensor measuring end in the traditional torque measuring device adopts surface contact type fixing, namely, the measuring surface of the measuring end is fixedly contacted with the surface of a rod or a shaft to be measured, a certain pretightening force is applied during fixing, so that the measuring precision is greatly influenced, and the measured value can also have large fluctuation along with the vibration of a centrifugal machine, so that the accurate control precision cannot be realized by controlling the feeding quantity according to the measuring data. In order to ensure the long-term stable operation of the centrifuge, the traditional method in the past is to artificially reduce the feeding amount of the centrifuge so as to enable the centrifuge to operate under the condition of lower load, but the cost is that the centrifuge cannot exert the maximum processing capacity easily.
SUMMERY OF THE UTILITY MODEL
The utility model provides a centrifuge running pressure measuring device aiming at the defects and deficiencies of the prior art, which mainly aims at realizing the conversion of the torque of the centrifuge by measuring the running pressure of the centrifuge.
The utility model provides a technical scheme that its technical problem adopted is: the device is arranged at the mechanical safety system part of the centrifugal machine and comprises a fixed sleeve, a sensor, a positioning plate, a pressing plate, a buffer sleeve and a connecting rod; the fixed sleeve is arranged at the output end of the centrifuge, the positioning plate is arranged at the lower part of the fixed sleeve, the fixed sleeve is arranged on a frame of the centrifuge, and the sensor is connected with the torque digital display meter;
the fixed end of the sensor is arranged on the fixed sleeve through a connecting piece; the pressure plate is arranged on the upper portions of the two support rods, the buffer sleeve is arranged between the two support rods below the pressure plate, the connecting rod penetrates through the buffer sleeve, and the lower portion of the free end of the connecting rod is in contact with the measuring end of the sensor.
The buffer sleeve is a U-shaped flexible sleeve with a downward opening, and is arranged between the pressing plate and the two supporting rods in a transition fit mode.
An inner groove is formed in the center of the bottom surface of the connecting rod along the axial direction of the connecting rod.
The measuring end of the sensor is a point contact end, and the shape structure of the measuring end corresponds to the groove bottom structure of the inner groove.
And the measuring end of the sensor is embedded in the inner groove of the connecting rod, and the measuring end of the sensor and the connecting rod are in sliding fit.
The inner groove and the measuring end of the sensor are of arc surface structures matched with each other.
The upper end of the supporting rod is provided with an adjusting nut movably sleeved, so that the upper and lower positions of the pressing plate can be adjusted.
The bottom surface of the buffer sleeve is flush with the bottom surface of the connecting rod.
The fixed sleeve is rigidly connected with the frame of the centrifuge.
The bottom surface of the fixed end of the sensor is attached to the upper surface of the fixed sleeve and is fixed through the connecting piece; the detection end of the sensor is suspended above the positioning plate.
Adopt above-mentioned technical scheme, compare with prior art: the fixing mode of the sensor probe in the utility model is point contact and is not subjected to pretightening force, so the measuring precision is high; the buffer sleeve with the U-shaped structure is matched with the flexible material, so that the influence of the vibration of equipment on the measurement precision can be fully absorbed, the anti-interference capability is strong, and the vibration noise can be reduced; the connecting rod adopts groove structure and sensor probe contact, can guarantee the connecting rod along its endwise slip's degree of freedom, extension sensor life.
The utility model has the advantages of simple structure, convenient installation, accurate measurement, noise reduction and the like, greatly improves the feeding control precision of the centrifuge, and enables the centrifuge to exert the maximum processing capacity; the scheme is researched by the applicant after long-term practice, and the effect is obvious after the installation test.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the installation structure of the present invention.
Fig. 3 is the structure schematic diagram of the middle connecting rod and the measuring end of the present invention.
In the figure: the device comprises a fixed sleeve 1, a sensor 2, a support rod 3, a pressure plate 4, a buffer sleeve 5, a connecting rod 6, a positioning plate 7, a centrifuge frame 8 and a centrifuge differential mechanism 9.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The conditions in the embodiments may be further adjusted according to specific conditions.
Referring to the attached drawings 1-3, the device for measuring the operating pressure of the centrifugal machine is arranged on a mechanical safety system part of the centrifugal machine and mainly comprises a fixed sleeve 1, a sensor 2, a supporting rod 3, a pressing plate 4, a buffer sleeve 5, a connecting rod 6 and a positioning plate 7. The fixed sleeve is arranged on the frame of the centrifuge, and the positioning plate is arranged at the lower part of the fixed sleeve. The sensor is connected with a torque digital display meter, and the sensor displays torque after converting a measured pressure signal through the digital display meter. The fixed end of the sensor is arranged on the fixed sleeve through a connecting piece such as a bolt; the pressure plate is arranged on the upper parts of the two support rods, the buffer sleeve is arranged between the two support rods below the pressure plate, the connecting rod penetrates through the buffer sleeve, and the lower surface of the free end of the connecting rod is in contact with the measuring end of the sensor.
As a preferred embodiment, the buffer sleeve is a U-shaped flexible sleeve with a downward opening, namely made of a U-shaped structure and flexible materials, and the buffer sleeve is arranged between the pressure plate and the two support rods in a transition fit mode.
An inner groove is arranged at the center of the bottom surface of the connecting rod along the axial direction of the connecting rod. The measuring end of the sensor is a point contact end, and the shape structure of the measuring end corresponds to the groove bottom structure of the inner groove. The measuring end of the sensor is embedded in the inner groove of the connecting rod, and the measuring end of the sensor and the connecting rod are in sliding fit.
In this embodiment, the measuring ends of inner grove and sensor are the cambered surface structure of mutual matching, and the connecting rod is the rectangular rod body. In actual design and production, the inner groove and the measuring end can also be designed into other shapes which are convenient for embedding or production, such as a dovetail shape, a ball shape and the like.
As another preferred embodiment, the upper end of the supporting rod is provided with an adjusting nut movably sleeved, so that the vertical position of the pressing plate is adjusted, and the connecting rods with different structures and specifications are matched. The bottom surface of the buffer sleeve is flush with the bottom surface of the connecting rod. The fixed end of the sensor is arranged on a fixed sleeve, and the fixed sleeve is rigidly connected with a frame of the centrifugal machine; the connecting rod is positioned by the positioning plate, the buffer sleeve and the pressing plate, and the inner groove in the bottom surface of the connecting rod is embedded with the measuring end of the sensor. The connecting rod is connected to a differential (torque output system) of the centrifuge via a shear pin.
The fixed sleeve is rigidly connected with the frame of the centrifuge. The bottom surface of the fixed end of the sensor is attached to the upper surface of the fixed sleeve and is fixed through the connecting piece; the detection end of the sensor is suspended above the positioning plate.
In order to further explain the accuracy of torque estimation performed by the pressure measured by the pressure measuring device disclosed in the present invention, the following description is made with reference to actual test data.
The test is illustrated below:
choose LWZ1600x2400B type centrifuge as experimental model machine during the experiment for use, regard as the measurement weight with the electronic hanging scale, adopt static loaded mode to carry out multiunit "loading-measurement" experiment, experimental this type centrifuge of having recorded adopts the utility model discloses a 19 group's measured data with do not adopt the utility model discloses a 19 group's measured data, later according to the experimental data aassessment (the experimental data is shown below and is attached the table):
the data in the table show: LWZ1600x2400B type centrifuge adopts the utility model discloses afterwards, its mean value of measuring the error rate only is 0.20%, and does not adopt the utility model discloses the time, the mean value of measuring the error rate is 15.10%, and the error rate reduces to 0.013 times, and this is enough to explain, the utility model discloses a pressure value that this kind of centrifuge operation pressure measuring device surveyed is very showing to the measurement accuracy's that improves the centrifuge moment of torsion effect.
Model LWZ1600x2400B centrifuge
Adopt "centrifuge torque measuring device" and do not adopt the utility model discloses measure the test data record table of moment of torsion
Claims (10)
1. The device is arranged at the mechanical safety system part of the centrifugal machine and comprises a fixed sleeve, a sensor, a positioning plate, a pressing plate, a buffer sleeve and a connecting rod; the fixed sleeve is arranged at the output end of the centrifuge, the positioning plate is arranged at the lower part of the fixed sleeve, the fixed sleeve is arranged on a frame of the centrifuge, and the sensor is connected with the torque digital display meter;
the sensor is characterized in that the fixed end of the sensor is arranged on the fixed sleeve through a connecting piece; the pressure plate is arranged on the upper portions of the two support rods, the buffer sleeve is arranged between the two support rods below the pressure plate, the connecting rod penetrates through the buffer sleeve, and the lower portion of the free end of the connecting rod is in contact with the measuring end of the sensor.
2. The running torque measuring device of the centrifuge as claimed in claim 1, wherein the buffer sleeve is a downward-opening U-shaped flexible sleeve which is arranged between the pressure plate and the two support rods in a transition fit manner.
3. An operating torque measuring device of a centrifuge according to claim 1, wherein an inner groove is provided in the center of the bottom surface of the connecting rod in the axial direction thereof.
4. The running torque measuring device of the centrifuge as claimed in claim 3, wherein the measuring end of the sensor is a point contact end, and the shape structure of the measuring end corresponds to the groove bottom structure of the inner groove.
5. The running torque measuring device of the centrifuge as claimed in claim 4, wherein the measuring end of the sensor is inserted into the inner groove of the connecting rod, and the measuring end and the connecting rod are in sliding fit.
6. The running torque measuring device of the centrifuge as claimed in claim 4, wherein the inner groove and the measuring end of the sensor are of a mutually matched arc structure.
7. The running torque measuring device of the centrifuge as claimed in claim 1, wherein the upper end of the support rod is provided with a movably sleeved adjusting nut to realize the up-and-down position adjustment of the pressure plate.
8. The running torque measuring device of a centrifuge according to claim 1, wherein a bottom surface of the cushion collar is flush with a bottom surface of the connecting rod.
9. The running torque measuring device of the centrifuge of claim 1, wherein said harness is rigidly connected to a frame of said centrifuge.
10. The running torque measuring device of the centrifuge as claimed in claim 1, wherein the bottom surface of the fixed end of the sensor is attached to the upper surface of the fixing sleeve and fixed by the connecting member; the detection end of the sensor is suspended above the positioning plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120214410.1U CN215030114U (en) | 2021-01-26 | 2021-01-26 | Running torque measuring device of centrifugal machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120214410.1U CN215030114U (en) | 2021-01-26 | 2021-01-26 | Running torque measuring device of centrifugal machine |
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| Publication Number | Publication Date |
|---|---|
| CN215030114U true CN215030114U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120214410.1U Active CN215030114U (en) | 2021-01-26 | 2021-01-26 | Running torque measuring device of centrifugal machine |
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| CN (1) | CN215030114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112844878A (en) * | 2021-01-26 | 2021-05-28 | 唐山森普矿山装备有限公司 | Running torque measuring device of centrifugal machine |
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2021
- 2021-01-26 CN CN202120214410.1U patent/CN215030114U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112844878A (en) * | 2021-01-26 | 2021-05-28 | 唐山森普矿山装备有限公司 | Running torque measuring device of centrifugal machine |
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