CN215263241U - Powder performance measuring instrument - Google Patents
Powder performance measuring instrument Download PDFInfo
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- CN215263241U CN215263241U CN202121268812.6U CN202121268812U CN215263241U CN 215263241 U CN215263241 U CN 215263241U CN 202121268812 U CN202121268812 U CN 202121268812U CN 215263241 U CN215263241 U CN 215263241U
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Abstract
The utility model belongs to the technical field of powder material resistance measurement, concretely relates to powder performance measuring apparatu. The purpose is to solve the technical problem that the error range of the test result of the existing powder specific resistance measuring instrument is large. The technical scheme is as follows: it includes the bottom plate, a plurality of stand, the roof, pressure device, pressure test device, displacement measurement device, trigger device, controller and power, the roof passes through the top of a plurality of stand setting at the bottom plate, pressure device sets up the top surface at the roof, pressure test device sets up the below at the roof, displacement measurement device sets up the top surface at the roof and is located pressure test device's one end, trigger device sets up on the stand of pressure test device one side, controller and power setting are on the bottom plate, the controller respectively with pressure device, pressure test device and displacement measurement device electrical connection, the power is connected with each device electrical connection respectively. The utility model discloses can get rid of the influence of artificial factor in the experiment completely, reduce experimental error by a wide margin.
Description
Technical Field
The utility model belongs to the technical field of powder material resistance measurement, concretely relates to powder performance measuring apparatu.
Background
The specific resistance of the powder material is an important parameter for measuring the characteristics of the conductive powder, and is a material performance index which must be measured by a powder material manufacturer, and the existing powder specific resistance measuring instrument has larger error of measured results under the same measuring conditions, thereby bringing larger influence to the production of powder material products.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the great technical problem of present powder specific resistance measuring instrument test result error range, provide a powder performance measuring apparatu.
In order to solve the technical problem, the utility model discloses a technical scheme is:
a powder performance measuring instrument comprises a bottom plate 1, a plurality of upright posts 2, a top plate 3, a pressure device, a pressure testing device, a displacement measuring device, a trigger device, a controller 23 and a power supply 24, the top plate 3 is arranged above the bottom plate 1 through a plurality of upright posts 2, the pressure device is arranged on the top surface of the top plate 3, the pressure testing device is arranged below the top plate 3, the displacement measuring device is arranged on the top surface of the top plate 3 and is positioned at one side of the pressure testing device, the trigger device is arranged on the upright post 2 at one side of the pressure testing device, the controller 23 and the power supply 24 are arranged on the bottom plate 1, the controller 23 is electrically connected with the pressure device, the pressure testing device and the displacement measuring device respectively, the power supply 24 is electrically connected with the pressure device, the pressure testing device, the displacement measuring device and the controller 23 respectively;
the pressure device comprises a motor 4, a worm and gear speed reducer 5, a screw 8, a plurality of shaft sleeves 11 and a moving plate 12, wherein the motor 4 and the worm and gear speed reducer 5 are arranged on the top surface of the top plate 3, an output shaft of the motor 4 is connected with one end of a worm 5.2 of the worm and gear speed reducer 5, the screw 8 is arranged in a central shaft hole of a worm gear 5.3 of the worm and gear speed reducer 5, the lower end of the screw 8 sequentially penetrates through the top plate 3 and the moving plate 12, and the periphery of the moving plate 12 is connected with the plurality of upright posts 2 through the shaft sleeves 11;
the pressure testing device comprises a plurality of vibration bases 14, a pressure sensor 15, a plurality of springs 16, a vibrator 17, a lower pressing head 18, a pressing die 19, an upper pressing head 21 and an anti-splash head 22, wherein the pressure sensor 15 is arranged in the middle of the top surface of the bottom plate 1, the plurality of vibration bases 14 are arranged on the middle lower part of the plurality of upright posts 2, one end of the plurality of springs 16 is connected with the plurality of vibration bases 14, the other end of the springs 16 is connected with the bottom of the peripheral side surface of the vibrator 17 and the vibrator 17 is connected with the bottom of the vibrator 17, the vibrator 17 is positioned right above the pressure sensor 15, the lower pressing head 18 is arranged in the middle of the top surface of the vibrator 17, the pressing die 19 is provided with an insulating layer on the cylindrical structure and the inner side wall, the upper side of the lower pressing head 18 is arranged, the anti-splash head 22 is arranged on the bottom surface of the upper pressing head 21 and the anti-splash head 22 is inserted into the pressing die 19 from the upper end, the top surface of the upper pressure head 21 is arranged in the middle of the bottom surface of the moving plate 12, the upper pressure head 21 is connected with the positive pole of the power supply 24, and the lower pressure head 18 is connected with the negative pole of the power supply 24;
the displacement measuring device comprises a rotating wheel 6, a support 7, a plurality of photoelectric switch receiving ends 9 and photoelectric switch transmitting ends 10, wherein the rotating wheel 6 is arranged at the end part of a worm 5.2 of a worm gear and worm speed reducer 5 far away from a motor 4, the plurality of photoelectric switch receiving ends 9 are uniformly arranged on the periphery of the outer side surface of the rotating wheel 6, the support 7 is arranged on the top surface of a top plate 3 on the outer side of the rotating wheel 6, and the photoelectric switch transmitting ends 10 are arranged on the upper part of the side surface of the support 7 and enable the photoelectric switch transmitting ends 10 to correspond to the photoelectric switch receiving ends 9;
further, the worm and gear speed reducer 5 comprises a speed reducer housing 5.1, a worm 5.2 and a turbine 5.3, the worm 5.2 and the turbine 5.3 are arranged in the speed reducer housing 5.1, the worm 5.2 is meshed with the turbine 5.3, a thread is arranged in a center hole of the turbine 5.3, and the screw 8 is arranged in the center hole of the turbine 5.3 and connected through the thread.
Further, trigger device 13 includes backplate 13.1, upper contact plate 13.2, lower contact plate 13.3, support 13.4 and gyro wheel 13.5, backplate 13.1 sets up at the middle part of stand 2 inboard, upper contact plate 13.2 sets up on backplate 13.1's medial surface upper portion, lower contact plate 13.3 sets up and contacts at backplate 13.1's medial surface lower part and upper contact plate 13.2 and lower contact plate 13.3, the upper end of support 13.4 sets up the bottom surface at movable plate 12, gyro wheel 13.5 sets up the lower extreme at support 13.4 and gyro wheel 13.5 contacts with upper contact plate 13.2.
Further, the lower contact plate (13.3) and the roller (13.5) are conductors, and the upper contact plate (13.2) and the bracket (13.4) are insulators.
Furthermore, the lower pressure head (18), the upper pressure head (21) and the splash-proof head (22) are all conductors.
Further, the thickness of the lower contact plate (13.3) is greater than the thickness of the upper contact plate (13.2).
Further, the outer diameter of the lower pressing head (18) and the upper pressing head (21) and the outer diameter of the splash-proof head (22) are the same as the inner diameter of the pressing die (19).
Further, lower contact plate (13.3) and photoelectric switch transmitting terminal (10) electric connection, photoelectric switch transmitting terminal (10) are connected with the positive pole of power (24), the center pin and the photoelectric switch receiving terminal (9) electric connection of gyro wheel (13.5), photoelectric switch receiving terminal (9) are connected with the negative pole of power (24).
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a displacement transmission and pressure transmission all adopt mechanical automatic transmission, can get rid of the influence of human factor completely in the test process for sample pressurized is slow, even, makes the density gradient that the sample pressurization produced have abundant creep and slide time, and the further homogenization of sample, the sample parameter error who records reduces by a wide margin, and data are more accurate.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the worm gear reducer of the present invention;
fig. 3 is a schematic view of the internal structure of the worm gear reducer of the present invention;
fig. 4 is a schematic structural view of the triggering device of the present invention;
fig. 5 is a schematic view of the electrical connection between the triggering device and the displacement measuring device according to the present invention;
FIG. 6 is a schematic diagram of the electrical connection of the pressure testing device of the present invention;
in the figure: 1-bottom plate, 2-upright post, 3-top plate, 4-motor, 5-worm gear reducer, 6-rotating wheel, 7-support, 8-screw, 9-photoelectric switch receiving end, 10-photoelectric switch transmitting end, 11-shaft sleeve, 12-moving plate, 13-trigger device, 14-vibration base, 15-pressure sensor, 16-spring, 17-vibrator, 18-lower pressure head, 19-pressing die, 20-sample, 21-upper pressure head, 22-splash head, 23-controller and 24-power supply;
wherein: 5.1-reducer shell, 5.2-worm, 5.3-turbine;
13.1-back plate, 13.2-upper contact plate, 13.3-lower contact plate, 13.4-bracket and 13.5-roller.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1-6, a powder property measuring instrument comprises a bottom plate 1, a plurality of upright posts 2, a top plate 3, a pressure device, a pressure testing device, a displacement measuring device, a trigger device, a controller 23 and a power supply 24, the top plate 3 is arranged above the bottom plate 1 through a plurality of upright posts 2, the pressure device is arranged on the top surface of the top plate 3, the pressure testing device is arranged below the top plate 3, the displacement measuring device is arranged on the top surface of the top plate 3 and is positioned at one side of the pressure testing device, the trigger device is arranged on the upright post 2 at one side of the pressure testing device, the controller 23 and the power supply 24 are arranged on the bottom plate 1, the controller 23 is electrically connected with the pressure device, the pressure testing device and the displacement measuring device respectively, the power supply 24 is electrically connected with the pressure device, the pressure testing device, the displacement measuring device and the controller 23 respectively;
the pressure device comprises a motor 4, a worm and gear speed reducer 5, a screw 8, a plurality of shaft sleeves 11 and a moving plate 12, wherein the motor 4 and the worm and gear speed reducer 5 are arranged on the top surface of the top plate 3, an output shaft of the motor 4 is connected with one end of a worm 5.2 of the worm and gear speed reducer 5, the screw 8 is arranged in a central shaft hole of a worm gear 5.3 of the worm and gear speed reducer 5, the lower end of the screw 8 sequentially penetrates through the top plate 3 and the moving plate 12, and the periphery of the moving plate 12 is connected with the plurality of upright posts 2 through the shaft sleeves 11;
the pressure testing device comprises a plurality of vibration bases 14, a pressure sensor 15, a plurality of springs 16, a vibrator 17, a lower pressing head 18, a pressing die 19, an upper pressing head 21 and an anti-splash head 22, wherein the pressure sensor 15 is arranged in the middle of the top surface of the bottom plate 1, the plurality of vibration bases 14 are arranged on the middle lower part of the plurality of upright posts 2, one end of the plurality of springs 16 is connected with the plurality of vibration bases 14, the other end of the springs 16 is connected with the bottom of the peripheral side surface of the vibrator 17 and the vibrator 17 is connected with the bottom of the vibrator 17, the vibrator 17 is positioned right above the pressure sensor 15, the lower pressing head 18 is arranged in the middle of the top surface of the vibrator 17, the pressing die 19 is provided with an insulating layer on the cylindrical structure and the inner side wall, the upper side of the lower pressing head 18 is arranged, the anti-splash head 22 is arranged on the bottom surface of the upper pressing head 21 and the anti-splash head 22 is inserted into the pressing die 19 from the upper end, the top surface of the upper pressure head 21 is arranged in the middle of the bottom surface of the moving plate 12, the upper pressure head 21 is connected with the positive pole of the power supply 24, and the lower pressure head 18 is connected with the negative pole of the power supply 24;
the displacement measuring device comprises a rotating wheel 6, a support 7, a plurality of photoelectric switch receiving ends 9 and photoelectric switch transmitting ends 10, wherein the rotating wheel 6 is arranged at the end part of a worm 5.2 of a worm gear and worm speed reducer 5 far away from a motor 4, the plurality of photoelectric switch receiving ends 9 are uniformly arranged on the periphery of the outer side surface of the rotating wheel 6, the support 7 is arranged on the top surface of a top plate 3 on the outer side of the rotating wheel 6, and the photoelectric switch transmitting ends 10 are arranged on the upper part of the side surface of the support 7 and enable the photoelectric switch transmitting ends 10 to correspond to the photoelectric switch receiving ends 9;
the worm and gear speed reducer 5 comprises a speed reducer shell 5.1, a worm 5.2 and a worm wheel 5.3, wherein the worm 5.2 and the worm wheel 5.3 are arranged in the speed reducer shell 5.1, the worm 5.2 is meshed with the worm wheel 5.3, a thread is arranged in a center hole of the worm wheel 5.3, and the screw rod 8 is arranged in the center hole of the worm wheel 5.3 and is connected with the center hole through the thread.
The lower contact plate 13.3, the roller 13.5, the lower pressing head 18, the upper pressing head 21 and the splash proof head 22 are all conductors, and the upper contact plate 13.2 and the bracket 13.4 are insulators.
The outer diameters of the lower pressure head 18 and the upper pressure head 21 and the outer diameter of the splash proof head 22 are the same as the inner diameter of the pressing die 19.
Lower contact plate 13.3 and photoelectric switch transmitting terminal 10 electrical connection, photoelectric switch transmitting terminal 10 is connected with power 24's positive pole, gyro wheel 13.5's center pin and photoelectric switch receiving terminal 9 electrical connection, photoelectric switch receiving terminal 9 is connected with power 24's negative pole.
The utility model discloses the theory of operation as follows:
when the utility model is used, all parts and wires are connected and returned to zero, the vibrator 17 is started, the vibrator 17 vibrates up and down to drive the lower pressure head 18 to vibrate the powder sample 20 in the pressing die 19 more closely, and then the vibration is stopped;
starting a motor 4 and a worm and gear speed reducer 5, enabling a rotating wheel 6 and the motor 4 to synchronously rotate, enabling the worm and gear speed reducer 5 to drive a screw 8 to move up and down, further driving a moving plate 12, an upper pressure head 21 and a support 13.4 to move up and down, when a roller 13.5 descends to be in contact with a lower contact plate 13.3, a circuit is switched on, a photoelectric switch transmitting end 10 sends a photoelectric signal to a photoelectric switch receiving end 9, a numerical value output after the signal is switched on is displayed on a display of a controller, the distance of the screw 8 moving up and down can be calculated through the display of the photoelectric signal, the number of turns of the motor 4 in rotation and the speed ratio of the worm and gear speed reducer 5, the upper pressure head 21 moves down, pressure is transmitted to a test piece 20, the lower pressure head 18, a vibrator 17 and a pressure sensor 15, and the pressure is displayed on the display of the controller 23 through the pressure sensor 15;
determining a zero position: starting the motor 4 and the worm gear speed reducer 5, driving the screw rod 8 and the moving plate 12 to move downwards, so as to drive the upper pressure head 21 and the splash-proof head 22 to move downwards, resisting against the lower pressure head 18 to transfer acting force downwards, finally pushing the vibrating machine 17 to move downwards, acting on the pressure sensor 15, outputting a pressure value, when the pressure value reaches 784N, closing the motor 4 to stop pressurizing, and recording the position of the roller 13.5 on the lower contact plate 13.3 as A, wherein the position is marked as a zero position;
and (3) measuring displacement: the powder sample 20 is introduced into the die 19 and the motor 4 is again started to pressurize, and when the pressure reaches 784N, the motor 4 is turned off to stop pressurizing, at which point the position reached by the roller 13.5 on the lower contact plate 13.3 is recorded as B;
the thickness of the sample 20 is then: h ═ B-a) × α
In the formula, alpha is a conversion constant obtained by calculation according to the speed ratio of the speed reducer and the number of receiving ends of the photoelectric switches;
measurement of specific resistance of the sample: since the upper ram 21 is connected to the positive electrode of the power supply 24 and the lower ram 18 is connected to the negative electrode of the power supply 24, when the pressure of the sample 20 reaches 784N, the voltage and current at both ends of the sample measured by the ammeter are U and I, respectively, and the resistance of the sample 20 is R ═ U/I.
Calculation of other parameters: the weight of the sample 20 is weighed as W, and the cross-sectional area of the cavity of the die 19 is measured as S, the specific resistance of the powder sample 20 is:
in the formula: mu is specific resistance, U is voltage, I is current, S is cross-sectional area of the pressing die, and h is thickness of the sample;
the density of the powder sample 20 was:
in the formula: ρ is the density, W is the weight of the sample, S is the cross-sectional area of the stamper, and h is the thickness of the sample.
Claims (8)
1. A powder performance measuring instrument is characterized in that: the pressure testing device comprises a bottom plate (1), a plurality of upright columns (2), a top plate (3), a pressure device, a pressure testing device, a displacement measuring device, a triggering device, a controller (23) and a power supply (24), wherein the top plate (3) is arranged above the bottom plate (1) through the plurality of upright columns (2), the pressure device is arranged on the top surface of the top plate (3), the pressure testing device is arranged below the top plate (3), the displacement measuring device is arranged on the top surface of the top plate (3) and positioned on one side of the pressure testing device, the triggering device is arranged on the upright column (2) on one side of the pressure testing device, the controller (23) and the power supply (24) are arranged on the bottom plate (1), the controller (23) is electrically connected with the pressure device, the pressure testing device and the displacement measuring device respectively, and the power supply (24) is electrically connected with the pressure device, the pressure testing device and the displacement measuring device respectively, The pressure testing device, the displacement measuring device and the controller (23) are electrically connected;
the pressure device comprises a motor (4), a worm and gear speed reducer (5), a screw (8), a plurality of shaft sleeves (11) and a moving plate (12), wherein the motor (4) and the worm and gear speed reducer (5) are arranged on the top surface of a top plate (3), an output shaft of the motor (4) is connected with one end of a worm (5.2) of the worm and gear speed reducer (5), the screw (8) is arranged in a central shaft hole of a worm gear (5.3) of the worm and gear speed reducer (5), the lower end of the screw (8) sequentially penetrates through the top plate (3) and the moving plate (12), and the periphery of the moving plate (12) is connected with a plurality of upright posts (2) through the shaft sleeves (11);
the pressure testing device comprises a plurality of vibrating bases (14), a pressure sensor (15), a plurality of springs (16), a vibrating machine (17), a lower pressing head (18), a pressing die (19), an upper pressing head (21) and an anti-splash head (22), wherein the pressure sensor (15) is arranged in the middle of the top surface of a bottom plate (1), the plurality of vibrating bases (14) are arranged at the middle lower part of a plurality of stand columns (2), the plurality of vibrating bases (14) are connected with one end of the plurality of springs (16), the other end of each spring (16) is connected with the bottom of the peripheral side surface of the vibrating machine (17) and enables the vibrating machine (17) to be positioned right above the pressure sensor (15), the lower pressing head (18) is arranged in the middle of the top surface of the vibrating machine (17), the pressing die (19) is of a cylindrical structure and is provided with an insulating layer on the inner side wall, the upper side of the lower pressing head (18) is arranged and the lower pressing head (18) is inserted into the pressing die (19) from the lower end, the splash-proof head (22) is arranged on the bottom surface of the upper pressure head (21), the splash-proof head (22) is inserted into the pressing die (19) from the upper end, the top surface of the upper pressure head (21) is arranged in the middle of the bottom surface of the moving plate (12), the upper pressure head (21) is connected with the positive pole of the power supply (24), and the lower pressure head (18) is connected with the negative pole of the power supply (24);
displacement measurement device includes runner (6), support (7), a plurality of photoelectric switch receiving terminal (9) and photoelectric switch transmitting terminal (10), runner (6) set up worm (5.2) tip in turbine worm speed reducer (5) of keeping away from motor (4), a plurality of photoelectric switch receiving terminal (9) evenly set up on the circumference of runner (6) lateral surface, support (7) set up on roof (3) top surface in the runner (6) outside, photoelectric switch transmitting terminal (10) set up on the side upper portion of support (7) and make photoelectric switch transmitting terminal (10) and photoelectric switch receiving terminal (9) position corresponding.
2. A powder property measuring instrument according to claim 1, wherein: the worm and gear speed reducer (5) comprises a speed reducer shell (5.1), a worm (5.2) and a turbine (5.3), wherein the worm (5.2) and the turbine (5.3) are arranged in the speed reducer shell (5.1), the worm (5.2) is meshed with the turbine (5.3), a thread is arranged in a center hole of the turbine (5.3), and the screw (8) is arranged in the center hole of the turbine (5.3) and is connected through the thread.
3. A powder property measuring instrument according to claim 1, wherein: trigger device (13) include backplate (13.1), go up contact plate (13.2), lower contact plate (13.3), support (13.4) and gyro wheel (13.5), backplate (13.1) sets up at the middle part of stand (2) inboard, it sets up on the medial surface upper portion of backplate (13.1) to go up contact plate (13.2), lower contact plate (13.3) set up in the medial surface lower part of backplate (13.1) and go up contact plate (13.2) and contact plate (13.3) down and contact, the upper end of support (13.4) sets up the bottom surface at movable plate (12), gyro wheel (13.5) set up and contact at the lower extreme of support (13.4) and gyro wheel (13.5) and last contact plate (13.2).
4. A powder property measuring instrument according to claim 3, wherein: the lower contact plate (13.3) and the roller (13.5) are conductors, and the upper contact plate (13.2) and the bracket (13.4) are insulators.
5. A powder property measuring instrument according to claim 1, wherein: the lower pressure head (18), the upper pressure head (21) and the splash-proof head (22) are all conductors.
6. A powder property measuring instrument according to claim 3, wherein: the thickness of the lower contact plate (13.3) is greater than the thickness of the upper contact plate (13.2).
7. A powder property measuring instrument according to claim 1, wherein: the outer diameters of the lower pressing head (18) and the upper pressing head (21) and the outer diameter of the splash-proof head (22) are the same as the inner diameter of the pressing die (19).
8. The powder property measuring instrument according to claim 4, wherein: lower contact plate (13.3) and photoelectric switch transmitting terminal (10) electric connection, photoelectric switch transmitting terminal (10) are connected with the positive pole of power (24), the center pin and photoelectric switch receiving terminal (9) electric connection of gyro wheel (13.5), photoelectric switch receiving terminal (9) are connected with the negative pole of power (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121268812.6U CN215263241U (en) | 2021-06-07 | 2021-06-07 | Powder performance measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121268812.6U CN215263241U (en) | 2021-06-07 | 2021-06-07 | Powder performance measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215263241U true CN215263241U (en) | 2021-12-21 |
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ID=79477482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121268812.6U Active CN215263241U (en) | 2021-06-07 | 2021-06-07 | Powder performance measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215263241U (en) |
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2021
- 2021-06-07 CN CN202121268812.6U patent/CN215263241U/en active Active
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