CN220437488U - Structure for counteracting friction force in coriolis scale - Google Patents
Structure for counteracting friction force in coriolis scale Download PDFInfo
- Publication number
- CN220437488U CN220437488U CN202322057922.3U CN202322057922U CN220437488U CN 220437488 U CN220437488 U CN 220437488U CN 202322057922 U CN202322057922 U CN 202322057922U CN 220437488 U CN220437488 U CN 220437488U
- Authority
- CN
- China
- Prior art keywords
- supporting bearing
- shaft
- driving shaft
- bearing
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 abstract description 24
- 239000000843 powder Substances 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- -1 electric power Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model relates to the field of powder material flow metering devices. The technical proposal is as follows: the structure for eliminating friction force in Coriolis scale includes one base, one driving shaft, one motor seat, one driven shaft bearing, one measuring disc and one transmission mechanism; the method is characterized in that: a force transducer is arranged on the motor support; a driving shaft supporting bearing is arranged between the driving shaft and the motor support; the inner ring of the driving shaft supporting bearing is fixedly connected with the driving shaft, and the outer ring of the driving shaft supporting bearing is fixedly connected with the motor support; a floating structure capable of rotating relatively is arranged between the motor support and the machine base; a floating structure capable of rotating relatively is arranged between the outer ring of the driven shaft supporting bearing and the machine base; and a friction force counteracting mechanism is arranged between the motor support and the outer ring of the driven shaft supporting bearing. The structure can eliminate the bearing friction force in the driving shafting and the driven shafting of the coriolis scale and improve the metering accuracy and stability of the coriolis scale.
Description
Technical Field
The utility model relates to the field of powder material flow metering devices, in particular to a structure for counteracting friction in a coriolis scale.
Background
Coriolis scales (also known as coriolis scales) are powder-fed-batch scales that automatically weigh and control the instantaneous flow of a passing powder material. The Coriolis scale is widely applied to industries such as building materials, cement, electric power, chemical industry, grains and the like, is used for dynamically weighing and quantitatively feeding various powdery materials in the production process, and has the following working principle: the core part of the coriolis balance is a measuring disc, the measured material falls on the measuring disc, the measured material is thrown out from the rotating measuring disc, the material generates a force on the blade of the measuring disc, the force is coriolis force, the force generates a reverse torque on the measuring disc, the reverse torque is in direct proportion to the mass of the material, and the flow of the material can be obtained by measuring the magnitude of the force. In coriolis scales, the torque of the drive shaft of the measuring disc is measured, and since the radius of the measuring disc is fixed, the torque is measured to obtain coriolis force, and thus the instantaneous flow of the material is indirectly obtained.
According to the installation position of the driving motor, the coriolis balance generally has two forms, one is that the driving motor is arranged above the balance body, and the driving motor directly drives the main shaft of the measuring disc to rotate; the other is side-mounted, namely a driving motor is arranged on the side face of the scale body, and the driving motor drives the main shaft of the measuring disc to rotate through a transmission mechanism. Because the material of side-mounted coriolis balance can directly fall to the middle part of the measuring disc, the problem of low measuring precision caused by unbalanced load of the measuring disc is avoided, and the heat dissipation and the overhaul are convenient, so that the side-mounted coriolis balance is commonly adopted at present.
For example, chinese patent CN205228547U discloses a side coriolis balance using a flexible force transmission mechanism, the coriolis balance includes a metering bin having a feed inlet and a discharge outlet, a spindle penetrating the metering bin, and a driving device for driving the spindle to rotate, where the spindle is connected with a measuring disc, the feed inlet is located right above the measuring disc, the driving device is located outside the metering bin, and the driving device is connected with the spindle through a synchronous belt. The driving device adopts the motor, the outside in measurement storehouse is equipped with the motor mount, be equipped with the motor mount on the motor mount, the motor mount includes the mount pad fixed part that links firmly with the motor mount and with mount pad fixed part normal running fit's mount pad rotation part, mount pad rotation part and mount pad fixed part all are equipped with the shaft hole that supplies the output shaft of motor to penetrate, the motor base links firmly with mount pad rotation part, the motor mount has linked firmly sensor detection device, sensor detection device's measurement contact offsets with motor base in order to lock the motor base and can detect out the output shaft of motor and receive moment of torsion.
The operating principle of the coriolis balance of the above patent is: the motor is started, because the motor base receives the locking effect of sensor detection device, the motor base is static, the output shaft drives the main shaft rotatory and drive the measurement dish rotation, the material falls into the measurement dish middle part from the feed inlet, under the effect of centrifugal force, the material is beaten on the blade of measurement dish, the measurement dish receives the effort of material, establish the rotation side Xiang Wei forward of main shaft and output shaft, at this moment, the main shaft can receive reverse moment of torsion, when the main shaft receives the moment of torsion effect, the output shaft also can receive reverse moment of torsion through the connecting action of hold-in range, like this, the motor base will produce forward rotatory motion trend, sensor detection device's measurement contact receives the effort of motor base, when detecting the material is beaten on the blade, the resistance moment of torsion that the main shaft received, and then the flow of material is detected.
However, in the coriolis balance of the above patent, the output shaft of the motor and the main shaft of the measuring disc are directly supported on the housing through bearings. When the coriolis balance operates, friction force is generated in the bearing, the friction force of the bearing can be detected by the sensor detection device and used as coriolis force, the friction force is a variable affecting the metering precision of the coriolis balance, so that the zero point stability of the coriolis balance is reduced, the operation stability is affected, and the calibration coefficient needs to be adjusted for a plurality of times when the coriolis balance is used.
Disclosure of Invention
The utility model aims to overcome the defects of the background technology and provide a structure for eliminating friction in the coriolis balance, which can eliminate bearing friction in an active shafting and a passive shafting of the coriolis balance and improve the metering precision and the running stability of the coriolis balance.
The technical scheme provided by the utility model is as follows:
the structure for counteracting friction force in the Coriolis scale comprises a base, a driving shaft, a motor for driving the driving shaft to rotate, a motor support fixedly connected with a motor stator, a driven shaft parallel to the driving shaft and arranged at a spacing distance, a driven shaft supporting bearing fixedly connected with the driven shaft at an inner ring, a measuring disc fixedly connected with the driven shaft, and a transmission mechanism connected between the driving shaft and the driven shaft; the method is characterized in that:
a force transducer is arranged on the motor support; a driving shaft supporting bearing is arranged between the driving shaft and the motor support; the inner ring of the driving shaft supporting bearing is fixedly connected with the driving shaft, and the outer ring of the driving shaft supporting bearing is fixedly connected with the motor support; the motor support and the machine seat are arranged into a floating structure capable of rotating relatively through a bearing; the outer ring of the driven shaft supporting bearing and the machine seat are arranged into a floating structure capable of rotating relatively through the bearing; and a friction force counteracting mechanism is arranged between the motor support and the outer ring of the driven shaft supporting bearing.
A support bearing is arranged between the motor support and the machine base; the inner ring of the support bearing is fixedly connected with the motor support, and the outer ring of the support bearing is fixedly connected with the machine base.
The outer ring of the driven shaft supporting bearing is fixedly sleeved with a sheath shaft; a sheath shaft supporting bearing is arranged between the sheath shaft and the machine base; the inner ring of the sheath shaft supporting bearing is fixedly connected with the sheath shaft, and the outer ring of the sheath shaft supporting bearing is fixedly connected with the machine base.
The motor support is flexibly connected with the sheath shaft through a steel wire rope; the steel wire rope and the sheath shaft form the friction force counteracting mechanism.
The transmission mechanism adopts belt transmission or gear transmission.
The driving shaft supporting bearing, the support supporting bearing, the driven shaft supporting bearing and the sheath shaft supporting bearing are all ball bearings.
The driving shaft supporting bearing, the support supporting bearing, the driven shaft supporting bearing and the sheath shaft supporting bearing are respectively provided with two groups up and down so as to improve the work stability of the coriolis scale.
The bottom of the motor support is fixedly provided with a support lower end cover sleeved on the periphery of the driving shaft; the lower end of the sheath shaft is fixedly provided with a lower end cover of the sheath shaft which is sleeved on the periphery of the driven shaft; and two ends of the steel wire rope are respectively and fixedly connected with a support lower end cover and a sheath shaft lower end cover.
The beneficial effects of the utility model are as follows:
(1) In the driving shafting, the driving shaft supporting bearing is arranged between the driving shaft and the motor support, and the support supporting bearing is arranged between the motor support and the machine base, so that the driving shaft supporting bearing becomes an internal bearing of the motor, the friction force of the driving shaft supporting bearing becomes an internal force and cannot be transmitted to the force transducer, and the interference of the friction force of the driving shaft supporting bearing on the force transducer is eliminated.
(2) In the driven shaft system, a driven shaft supporting bearing is arranged between a driven shaft and a sheath shaft, a sheath shaft supporting bearing is arranged between the sheath shaft and a machine base, and a friction force counteracting mechanism is arranged between a motor support and the sheath shaft. When the whole active shafting is analyzed, the acting force of the motor support, which is finally detected by the force transducer, is reduced due to the tensile force of the steel wire rope, and the reduced acting force of the motor support is the friction force of the driven shaft support bearing, which is equivalent to that the friction force of the driven shaft support bearing is not transmitted to the force transducer under the action of the friction force counteracting mechanism, so that the interference of the friction force of the driven shaft support bearing on the force transducer is eliminated.
(3) According to the motor support and the sheath shaft, the motor support is flexibly connected with the sheath shaft through the steel wire rope, so that the sheath shaft can rotate around the axis of the sheath shaft by a small angle due to inertia under the action of friction force of the driven shaft supporting bearing, and the small angle is offset with the tension of the steel wire rope, so that the rationality of the structure is ensured.
(4) The method greatly improves the metering precision and the running stability of the coriolis scale, solves the industrial problems of inaccurate metering precision and the need of multiple adjustment of the calibration coefficient of the coriolis scale, and is suitable for popularization and application.
Drawings
Fig. 1 is a front view of the structure of the present utility model.
Fig. 2 is a top view of the structure of the present utility model.
Reference numerals:
1. an active shafting; 1-1, a motor; 1-2, a driving shaft; 1-3, a driving shaft supporting bearing; 1-4, a motor support; 1-5, supporting a bearing by a support; 1-6, a lower end cover of the support; 1-7, a force transducer; 1-8, rigid rods;
2. a passive shaft system; 2-1, measuring disc; 2-2, a driven shaft; 2-3, a driven shaft supporting bearing; 2-4, a sheath shaft; 2-5, a sheath shaft supporting bearing; 2-6, a sheath shaft lower end cover;
3. a transmission mechanism; 4. a wire rope; 5. and a base.
Detailed Description
Further description will be given below of embodiments shown in the drawings.
When the existing side-mounted coriolis balance works, assuming that the rotation directions of a driving shaft 1-2 and a driven shaft 2-2 are forward, after a material falls on a measuring disc, the material is thrown out from the edge of the measuring disc 1-1, a coriolis force is generated on a blade of the measuring disc, the driven shaft is subjected to a reverse torque (the reverse torque is in direct proportion to the flow of the material), the reverse torque can be transmitted to the driving shaft through a transmission mechanism 3, and because a motor support 1-4 is connected with a base 5 through a support supporting bearing 1-5, the motor support can generate a forward rotation movement trend, a force F1 of the motor support is detected by a force transducer 1-7, and the reverse torque received by the driven shaft can be obtained, so that the flow of the material is detected.
Because the driving shaft is installed on the machine base through the driving shaft supporting bearing 1-3, the driven shaft is installed on the machine base through the driven shaft supporting bearing 2-3, and the driving shaft system (comprising the motor 1-1, the motor support 1-4, the driving shaft supporting bearing 1-3 and the support supporting bearing 1-5), the driven shaft system (comprising the driven shaft 2-2, the measuring disc 2-1 and the driven shaft supporting bearing 2-3) and the transmission mechanism are taken as a whole to carry out stress analysis, according to stress balance, the torque actually measured by the load cell 1-7 comprises: the device comprises a measuring disc working torque M0 generated by measuring disc Coriolis force, a driven shaft system friction torque M1 generated by driven shaft supporting bearing friction force, a transmission mechanism friction torque Mg generated by transmission mechanism friction force and a driving shaft system friction torque M2 generated by driving shaft supporting bearing and supporting bearing friction force. Assuming that the moment arm of the motor support acting force F1 is L1, equation (1) can be obtained:
F1×L1＝M0+M1+Mg+M2。(1)
in the formula (1), only the working torque M0 of the measuring disc is in direct proportion to the flow of the measured material (namely M0-coriolis force-material flow), there is no rule between other torque and material flow, and an interference signal is formed, which is a main reason for affecting the metering accuracy and stability of the coriolis scale. The accuracy of the coriolis scale metering and the stability of operation can be greatly improved if the disturbance forces that produce these torques can be eliminated or largely eliminated.
The method for counteracting friction in the coriolis balance provided in the embodiment is applied to a side-mounted coriolis balance, and the method includes:
the driving shaft supporting bearing 1-3 connected with the driving shaft 1-2 is arranged as an internal bearing of a motor, and the motor support 1-4 connected with the force sensor 1-7 and the machine base 5 are arranged as a floating structure capable of rotating relatively through the bearing, so that the friction force of the driving shaft supporting bearing is changed into an internal force, and the interference of the friction force of the driving shaft supporting bearing on the force sensor can be eliminated;
the outer ring of the driven shaft supporting bearing 2-3 connected with the driven shaft 2-2 and the machine base 5 are arranged into a floating structure capable of rotating relatively through the bearing, and a friction force counteracting mechanism is arranged between the motor support 1-4 and the outer ring of the driven shaft supporting bearing 2-3, so that the friction force of the driven shaft supporting bearing is converted into a pulling force applied to the motor support through the friction force counteracting mechanism, and the interference of the friction force of the driven shaft supporting bearing on the force transducer can be eliminated. The motor support is flexibly connected with the outer ring of the passive support bearing through the friction force counteracting mechanism, so that the motor support 1-4 and the outer ring of the passive support bearing 2-3 can respectively rotate around the axis of the motor support by a small angle under the action of friction force due to inertia force.
The structure for canceling friction in the coriolis balance provided in this embodiment is:
as shown in fig. 1 and 2, the structure includes a housing 5, a drive shaft 1-2, a drive shaft support bearing 1-3, a motor 1-1, a motor support 1-4, a support bearing 1-5, a load cell 1-7, a driven shaft 2-2, a driven shaft support bearing 2-3, a measuring disk 2-1, a transmission mechanism 3, and a friction force canceling mechanism.
The driving shaft and the driven shaft are parallel to each other and are arranged at intervals; the rotor of the motor is fixedly connected with the driving shaft in a coaxial manner, and the motor can drive the driving shaft to rotate; the motor support is fixedly connected with a stator of the motor, and the force transducer is fixedly arranged on the motor support through a rigid rod 1-8; the measuring disk is arranged coaxially with the driven shaft, and is fixedly connected to the driven shaft.
A driving shaft supporting bearing 1-3 is arranged between the driving shaft 1-2 and the motor support 1-4. Specifically, an inner ring of a driving shaft supporting bearing is fixedly connected with a driving shaft, and an outer ring of the driving shaft supporting bearing is fixedly connected with a motor support.
A support bearing 1-5 is arranged between the motor support 1-4 and the stand 5. Specifically, the inner ring of the support bearing is fixedly connected with the motor support, and the outer ring of the support bearing is fixedly connected with the machine base, so that a floating structure capable of rotating relatively is formed between the motor support and the machine base.
The outer ring of the driven shaft supporting bearing is fixedly sleeved with a sleeve shaft 2-4, and a sleeve shaft supporting bearing 2-5 is arranged between the sleeve shaft and the machine base. Specifically, the inner ring of the sheath shaft supporting bearing is fixedly connected with the sheath shaft, and the outer ring of the sheath shaft supporting bearing is fixedly connected with the machine base, so that a floating structure capable of rotating relatively is formed between the outer ring of the driven shaft supporting bearing and the machine base.
The motor support 1-4 is connected with the sheath shaft 2-4 through the steel wire rope 4, so that the motor support and the sheath shaft form flexible connection, and the sheath shaft can rotate around the micro angle of the self axis due to inertia under the friction force of the driven shaft supporting bearing. The steel wire rope and the sheath shaft form the friction force counteracting mechanism. In the embodiment, the bottom of the motor support is fixedly provided with a support lower end cover 1-6 sleeved on the periphery of the driving shaft; the lower end of the sheath shaft is fixedly provided with a sheath shaft lower end cover 2-6 sleeved on the periphery of the driven shaft; and two ends of the steel wire rope are respectively and fixedly connected with a support lower end cover and a sheath shaft lower end cover.
Preferably, the driving shaft supporting bearing, the supporting seat supporting bearing, the driven shaft supporting bearing and the sheath shaft supporting bearing are respectively provided with two groups up and down so as to improve the working stability of the coriolis scale; the driving shaft supporting bearing, the support supporting bearing, the driven shaft supporting bearing and the sheath shaft supporting bearing are all ball bearings.
The transmission mechanism is connected between the driving shaft and the driven shaft, and when the motor drives the driving shaft to rotate, the driving shaft drives the driven shaft to synchronously rotate through the transmission mechanism. The transmission mechanism can adopt belt transmission or gear transmission, and in the embodiment, the transmission mechanism adopts belt transmission.
The present utility model can eliminate the interference force from the following two aspects:
1. in the driving shaft system, a driving shaft supporting bearing is arranged between the driving shaft and a motor support, and a support supporting bearing is arranged between the motor support and the machine base.
The structure enables the driving shaft supporting bearing to be an internal bearing of the motor, the friction force of the driving shaft supporting bearing is changed into an internal force and cannot be transmitted to the force sensor, and interference of the friction force of the driving shaft supporting bearing on the force sensor is eliminated.
2. In the driven shaft system, a sheath shaft is additionally arranged, a driven shaft supporting bearing is arranged to be of a floating structure, the sheath shaft is flexibly connected with a motor support through a steel wire rope, and the sheath shaft and the steel wire rope form a friction force counteracting mechanism.
In operation, the rotational direction of the drive shaft and the driven shaft is assumed to be forward. When the material falls on the measuring disc, in the driven shaft system, the sheath shaft generates a movement trend of forward rotation (namely, a forward torque received by the friction force of the driven shaft supporting bearing) under the inertia action of the friction force of the driven shaft supporting bearing, and the forward torque is transmitted to the driving shaft through the transmission mechanism, so that the measuring result of the force sensor is larger. After the steel wire rope is added, the whole driving shafting is subjected to stress analysis: under the action of the tension force F2 of the steel wire rope, a reverse moment (assuming that the tension force arm of the steel wire rope is L2, the tension force arm of the steel wire rope is F2×L2) is applied to the motor support, and the acting force of the motor support finally detected by the force sensor is reduced. From the stress balance analysis, it can be seen that: the torque reduced by the motor support = the tension torque of the steel wire rope = the friction torque of the driven shaft support bearing, which is equivalent to that the friction force of the driven shaft support bearing is not transmitted to the force sensor under the action of the friction force counteracting mechanism, and the interference of the friction force of the driven shaft support bearing to the force sensor is eliminated.
In summary, the interference of the friction force in the driving shaft supporting bearing and the driven shaft supporting bearing on the force transducer is eliminated, and the friction force in the support supporting bearing and the friction force in the sheath shaft supporting bearing are small and negligible, so that the torque measured by the force transducer is more approximate to the working torque of the measuring disc, and the metering precision and the running stability of the Coriolis scale are greatly improved.
Finally, it should be noted that the above list is only specific embodiments of the present utility model. Obviously, the utility model is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present utility model.
Claims (8)
1. The structure for counteracting friction force in the Coriolis scale comprises a base (5), a driving shaft (1-2), a motor (1-1) for driving the driving shaft to rotate, a motor support (1-4) fixedly connected with a motor stator, a driven shaft (2-2) parallel to the driving shaft and arranged at a distance from the driving shaft, a driven shaft supporting bearing (2-3) with an inner ring fixedly connected with the driven shaft, a measuring disc (2-1) fixedly connected with the driven shaft, and a transmission mechanism (3) connected between the driving shaft and the driven shaft; the method is characterized in that:
a force transducer is arranged on the motor support; a driving shaft supporting bearing (1-3) is arranged between the driving shaft and the motor support; the inner ring of the driving shaft supporting bearing is fixedly connected with the driving shaft, and the outer ring of the driving shaft supporting bearing is fixedly connected with the motor support; the motor support and the machine seat are arranged into a floating structure capable of rotating relatively through a bearing; the outer ring of the driven shaft supporting bearing and the machine seat are arranged into a floating structure capable of rotating relatively through the bearing; and a friction force counteracting mechanism is arranged between the motor support and the outer ring of the driven shaft supporting bearing.
2. The coriolis scale of claim 1 wherein said friction counteracting structure is characterized by: a support supporting bearing (1-5) is arranged between the motor support and the machine base; the inner ring of the support bearing is fixedly connected with the motor support, and the outer ring of the support bearing is fixedly connected with the machine base.
3. The coriolis scale of claim 2 wherein said friction counteracting structure is characterized by: the outer ring of the driven shaft supporting bearing is fixedly sleeved with a sheath shaft (2-4); a sheath shaft supporting bearing (2-5) is arranged between the sheath shaft and the machine base; the inner ring of the sheath shaft supporting bearing is fixedly connected with the sheath shaft, and the outer ring of the sheath shaft supporting bearing is fixedly connected with the machine base.
4. A coriolis scale canceling friction structure of any one of claims 1 to 3 characterized in that: the motor support is flexibly connected with the sheath shaft through a steel wire rope (4); the steel wire rope and the sheath shaft form the friction force counteracting mechanism.
5. The coriolis scale of claim 4 wherein said friction counteracting structure is characterized by: the transmission mechanism adopts belt transmission or gear transmission.
6. The coriolis scale of claim 4 wherein said friction counteracting structure is characterized by: the driving shaft supporting bearing, the support supporting bearing, the driven shaft supporting bearing and the sheath shaft supporting bearing are all ball bearings.
7. The coriolis scale of claim 6 wherein said friction counteracting structure is characterized by: the driving shaft supporting bearing, the support supporting bearing, the driven shaft supporting bearing and the sheath shaft supporting bearing are respectively provided with two groups up and down so as to improve the work stability of the coriolis scale.
8. The coriolis scale of claim 4 wherein said friction counteracting structure is characterized by: the bottom of the motor support is fixedly provided with a support lower end cover (1-6) sleeved on the periphery of the driving shaft; the lower end of the sheath shaft is fixedly provided with a sheath shaft lower end cover (2-6) sleeved on the periphery of the driven shaft; and two ends of the steel wire rope are respectively and fixedly connected with a support lower end cover and a sheath shaft lower end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322057922.3U CN220437488U (en) | 2023-08-02 | 2023-08-02 | Structure for counteracting friction force in coriolis scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322057922.3U CN220437488U (en) | 2023-08-02 | 2023-08-02 | Structure for counteracting friction force in coriolis scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220437488U true CN220437488U (en) | 2024-02-02 |
Family
ID=89688474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322057922.3U Active CN220437488U (en) | 2023-08-02 | 2023-08-02 | Structure for counteracting friction force in coriolis scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220437488U (en) |
-
2023
- 2023-08-02 CN CN202322057922.3U patent/CN220437488U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5353647A (en) | Apparatus for measuring Coriolis forces for ascertaining a mass flow, especially a bulk material flow | |
| US20110100098A1 (en) | Rheometer and rheometric method for testing samples | |
| CN100387954C (en) | Measuring for friction torque of bearing under micro-loading at different rotation rate and measuring apparatus therefor | |
| CN101509814B (en) | Design method of miniature bearing dynamic friction moment measurement instrument | |
| CA2107794A1 (en) | Axially compact torque transducer | |
| CN103115726B (en) | Rotating parts and components dynamic balance method based on strain | |
| DK1644706T3 (en) | Cross Spring element | |
| CN102519639A (en) | Friction torque measurement apparatus of horizontal bearing | |
| US4995257A (en) | Monitor for shaft vibration in an operating turbine | |
| CN108956144A (en) | A kind of modularization crossed roller bearing temperature rise and Static stiffness test device and method | |
| CN103940482B (en) | Coriolis powder quality effusion meter | |
| GB2130371A (en) | Determining the charge of solids on a centrifuge drum | |
| US9243882B2 (en) | Low friction rheometer | |
| CN220437488U (en) | Structure for counteracting friction force in coriolis scale | |
| CN102539039A (en) | Method and equipment for measuring friction torque of radially loaded bearing | |
| US7614311B2 (en) | Device for measurement of a material mass flow including a flow measuring device | |
| JP4539945B2 (en) | Torque measuring device for a device measuring material flow | |
| CN101566492B (en) | Liquid storage tank liquid-level meter | |
| CN116858323A (en) | Method and structure for counteracting friction force in coriolis scale | |
| CN201285334Y (en) | Measurement instrument for detecting dynamic friction torque of bearing | |
| EP0857952B1 (en) | Impeller torque measuring device | |
| CN113567017B (en) | Measuring mechanism for measuring static moment of object | |
| RU2539810C1 (en) | Method of vertical dynamic balancing of workpiece and device for its implementation | |
| CN101793576A (en) | Measurement method of electric motor load torque and application thereof | |
| CN106482893A (en) | A kind of vertical on-site torsion calibration device of the principle that exerted a force based on reductor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |