Amplitude and vibration frequency calibrating device of tap density instrument
By designing a device for verifying the amplitude and vibration frequency of a tapped density meter, and using components such as a wing nut and a bracket to fix the tapped density meter, the amplitude and frequency are measured, thus solving the problem of inconsistent measurement results of the tapped density meter and achieving accurate and efficient measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-13
AI Technical Summary
The measurement results of existing tap density meters are inconsistent and lack accuracy, especially in applications in many fields where measurement instability and inefficiency are problems.
A device for verifying the amplitude and vibration frequency of a tapped density meter was designed, including a clamping mechanism, an amplitude verification main scale, an amplitude verification scale, and a vibration frequency verification device. The tapped density meter is fixed and verified by components such as a wing nut, a main support, a clamping frame, and clamping frame bolts. The amplitude and frequency are measured by using the vibration of the vibrating table to drive the scale to move and the sensor to count.
It enables accurate calibration of the amplitude and vibration frequency of the tap density meter, is simple to operate, low in cost, suitable for on-site calibration, and improves the consistency and efficiency of measurement results.
Smart Images
Figure CN223992789U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a device for verifying the amplitude and vibration frequency of a tapped density meter, belonging to the technical field of metrological verification devices for tapped density meters. Background Technology
[0002] A tap density meter is a precision instrument specifically designed to measure the density of granular or powdered materials. Its working principle is based on the tapping method. During measurement, a graduated cylinder containing the granular or powdered sample is placed on a vibration table, and the particles or powder are uniformly compacted within the cylinder through vertical up-and-down vibration. As the number of vibrations increases, the particles or powder in the cylinder gradually rearrange under the influence of vibration, filling gaps and achieving a dense and stable packing state. Once the technical requirements are met, vibration is stopped. The tap density of the material can then be calculated by reading the volume of the compacted particles or powder in the graduated cylinder and combining this with known mass data. Tap density meters have wide applications in pharmaceuticals, food, chemicals, mining, ceramics, agriculture, new energy (e.g., graphite in photovoltaic materials, positive and negative electrode materials in lithium-ion batteries), new materials, the atomic energy industry, and the defense industry (e.g., graphene in microelectronic devices). Ensuring the consistency of tap density meter measurement results, and maintaining its accuracy, stability, and efficiency, is of paramount importance. Summary of the Invention
[0003] The purpose of this invention is to solve the problems existing in the prior art and to provide a device for measuring the amplitude and vibration frequency of a tap density meter.
[0004] The objective of this utility model is achieved through the following technical solution:
[0005] An amplitude calibration device for a tap density meter includes a clamping mechanism, an amplitude calibration main scale, an amplitude calibration scale, and a foot of the amplitude calibration scale. The clamping mechanism includes two wing nuts, a main support, two brackets, two bracket hooks, and two bracket bolts. Each bracket has a bracket hook fixed at its lower end and a bracket bolt fixed at its upper end. Each side of the main support has a strip-shaped through hole, and the two bracket bolts pass through the through holes on both sides of the main support and are threadedly connected to the wing nuts. The lower end of the amplitude calibration main scale is fixedly connected to the middle position of the upper surface of the main support. The amplitude calibration scale is slidably connected to the amplitude calibration main scale, and the foot of the amplitude calibration scale is integrated with the lower end of the amplitude calibration scale.
[0006] A vibration frequency calibration device for a tapped density meter includes: a clamping mechanism, a frequency calibration bracket, a frequency calibration sensor mount, a frequency calibration sensor, a frequency calibration sensor wire, a frequency calibration sensor head, and a frequency calibration controller. The clamping mechanism includes two wing nuts, a main support, two brackets, two bracket hooks, and two bracket bolts. Each bracket has a bracket hook fixed at its lower end and a bracket bolt fixed at its upper end. A strip-shaped through hole is opened on each side of the main support, and the two bracket bolts pass through the through holes on both sides of the main support and are threadedly connected to the wing nuts. The lower end of the frequency calibration bracket is fixedly connected to the middle position of the upper surface of the main support. The frequency calibration sensor mount is slidably connected to the frequency calibration bracket. The frequency calibration sensor is mounted on the frequency calibration sensor mount. A frequency calibration sensor head is provided on one end of the frequency calibration sensor. One end of the frequency calibration sensor wire is electrically connected to the frequency calibration sensor, and the other end of the frequency calibration sensor wire is electrically connected to the frequency calibration controller.
[0007] Beneficial effects of this utility model
[0008] The calibration device of this invention is low in cost, simple to operate, easy to carry, has low environmental requirements, and can be easily used for on-site calibration.
[0009] The principle of amplitude verification of a tapped density meter is that when the tapped density meter vibrates, the vibrating table pushes the scale of the verification device to move, and the distance the scale moves is the amplitude of the tapped density meter.
[0010] The principle of vibration frequency verification of a tapped density meter is that the frequency of the tapped density meter is the number of times the vibration table blocks the sensor of the verification device per unit time when the tapped density meter vibrates.
[0011] The verification process is as follows:
[0012] Amplitude verification of tap density meter
[0013] 1. Adjust the amplitude calibration scale to the highest point of the amplitude calibration main scale.
[0014] 2. Adjust the clamp, hang the clamp on the housing of the compaction density meter, and tighten the screws.
[0015] 3. Turn on the tapped density meter and adjust the frequency to the lowest value. At this time, the tapping table should be at the lower dead center position.
[0016] 4. Slide the amplitude calibration scale down to the upper surface of the vibration table until it can no longer slide down, and read the value of the amplitude calibration scale at this position.
[0017] 5. Press the start button to begin vibration of the compaction density meter. The vibration table rises from the lower dead center to the upper dead center and then returns to complete one vibration cycle. At the same time, the vibration table pushes the amplitude calibration scale to the upper dead center. Read the value of the amplitude calibration scale at this position. The difference between the two values is the amplitude value of the compaction density meter.
[0018] Vibration frequency verification of tapped density meter
[0019] 1. Adjust the frequency calibration sensor mount to the highest point of the frequency calibration bracket.
[0020] 2. Adjust the clamp, hang the clamp on the housing of the compaction density meter, and tighten the screws.
[0021] 3. Turn on the tapped density meter. At this time, the vibrating table should be at the lower dead center position. Adjust the frequency to the set value, and at the same time turn on the controller of the amplitude calibration device and set the parameters.
[0022] 4. Slide the frequency calibration sensor head to the lower stop point, so that the lower edge of the vibration table just blocks the sensor head.
[0023] 5. Press the start button to begin vibration of the compaction density meter. The vibration table rises from the lower dead center to the upper dead center. At this time, the sensor head changes from an obstructed state to an unobstructed state, and the counter starts counting. The counting stops when the compaction density meter reaches the set frequency. The unit time count value of the frequency calibration device is the vibration frequency value of the compaction density meter. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the amplitude calibration device of the tap density meter of this utility model.
[0025] Figure 2 This is a schematic diagram of the vibration frequency calibration device of the present invention's tap density meter.
[0026] Figure 3 This is a schematic diagram of the tap density meter in its static state.
[0027] Figure 4 This is a schematic diagram of the vibration state of the tapped density meter.
[0028] Figure 5 This is a schematic diagram of the amplitude calibration state of the tap density meter of this utility model.
[0029] Figure 6 This is a schematic diagram of the vibration frequency calibration state of the tapped density meter of this utility model.
[0030] In the attached diagram, the following labels represent different components: 1 is the main unit of the tapped density meter; 2 is the tapped density meter vibration table; 3 is the lower dead point of the tapped density meter amplitude stroke; 4 is the upper dead point of the tapped density meter amplitude stroke; 5 is the amplitude calibration main scale; 6 is the amplitude calibration scale; 7 is the scale foot of the amplitude calibration scale; 8 is the wing nut; 9 is the main support; 10 is the bracket; 11 is the bracket hook; 12 is the frequency calibration bracket; 13 is the frequency calibration sensor swing arm; 14 is the frequency calibration sensor; 15 is the frequency calibration sensor wire; 16 is the frequency calibration sensor head; 17 is the bracket bolt; 18 is the side wall of the vibration table; and 19 is the frequency calibration controller. Detailed Implementation
[0031] The present invention will be further described in detail below with reference to the accompanying drawings: This embodiment is implemented based on the technical solution of the present invention and provides detailed implementation methods, but the protection scope of the present invention is not limited to the following embodiments.
[0032] Example 1
[0033] like Figure 1 , Figures 3-5 As shown, the amplitude calibration device of a tap density meter in this embodiment consists of a clamping mechanism, an amplitude calibration main scale 5, an amplitude calibration scale 6, and a scale foot 7 of the amplitude calibration scale. The clamping mechanism consists of two wing nuts 8, a main support 9, two brackets 10, two bracket hooks 11, and two bracket bolts 17. Each bracket 10 has a bracket hook 11 fixed at its lower end and a bracket bolt 17 fixed at its upper end. Each side of the main support 9 has a strip-shaped through hole, and the two bracket bolts 17 pass through the through holes on both sides of the main support 9 and are threadedly connected to the wing nuts 8 respectively. The lower end of the amplitude calibration main scale 5 is fixedly connected to the middle position of the upper surface of the main support 9. The amplitude calibration scale 6 is slidably connected to the amplitude calibration main scale 5, and the scale foot 7 of the amplitude calibration scale is integrated with the lower end of the amplitude calibration scale 6.
[0034] The amplitude calibration main scale 5 and the main support 9 are vertically connected.
[0035] Before use, insert the two clamping hooks 11 into the bottom of the compaction density meter, and then tighten the wing nut 8 to simultaneously clamp the main support 9 and the clamping hooks 11, and then perform the calibration. The bottom of the compaction density meter has feet for anti-slip and leveling, and inserting the clamping hooks 11 into the bottom of the compaction density meter does not hinder its operation.
[0036] Example 2
[0037] like Figures 2-4 and Figure 6As shown, the vibration frequency calibration device for a tap density meter in this embodiment comprises a clamping mechanism, a frequency calibration bracket 12, a frequency calibration sensor mount 13, a frequency calibration sensor 14, a frequency calibration sensor wire 15, a frequency calibration sensor head 16, and a frequency calibration controller 19. The clamping mechanism consists of two wing nuts 8, a main support 9, two brackets 10, two bracket hooks 11, and two bracket bolts 17. Each bracket 10 has a bracket hook 11 fixed at its lower end and a bracket bolt 17 fixed at its upper end. A strip is cut on each side of the main support 9. Two through holes are formed, and two bracket bolts 17 pass through the through holes on both sides of the main body bracket 9 and are threaded to the wing nuts 8 respectively; the lower end of the frequency calibration bracket 12 is fixedly connected to the middle position of the upper end face of the main body bracket 9; the frequency calibration sensor swing bracket 13 is slidably connected to the frequency calibration bracket 12; the frequency calibration sensor 14 is installed on the frequency calibration sensor swing bracket 13; one end of the frequency calibration sensor 14 is provided with a frequency calibration sensor head 16; one end of the frequency calibration sensor wire 15 is electrically connected to the frequency calibration sensor 14; and the other end of the frequency calibration sensor wire 15 is electrically connected to the frequency calibration controller 19.
[0038] The frequency calibration bracket 12 is vertically connected to the main bracket 9.
[0039] Before use, insert the two clamping hooks 11 into the bottom of the tapped density meter, and then tighten the wing nut 8 so that the main support 9 and the clamping hooks 11 are subjected to force at the same time, thereby clamping the tapped density meter before calibration.
[0040] The fixed connection described in the above embodiments is by welding, bonding, or integral molding.
[0041] The above description is merely a preferred embodiment of this utility model. These specific embodiments are different implementations based on the overall concept of this utility model, and the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A device for amplitude verification of a tap density apparatus, comprising a clamping mechanism, an amplitude verification master scale (5), an amplitude verification scale (6) and a foot (7) of the amplitude verification scale, characterized in that The clamping mechanism comprises two butterfly nuts (8), a main body support (9), two embracing frames (10), two embracing frame hooks (11) and two embracing frame bolts (17), the lower end of each embracing frame (10) is fixed with an embracing frame hook (11), the upper end of each embracing frame (10) is fixed with an embracing frame bolt (17), each side of the main body support (9) is provided with a strip-shaped through hole, the two embracing frame bolts (17) pass through the through holes on the two sides of the main body support (9) and are respectively screwed with the butterfly nuts (8); the lower end of the amplitude calibration main ruler (5) is fixedly connected with the middle position of the upper end surface of the main body support (9), the amplitude calibration scale (6) is slidably connected with the amplitude calibration main ruler (5), and the ruler foot (7) of the amplitude calibration scale is integrated with the lower end of the amplitude calibration scale (6).
2. The amplitude verification device for a tap density apparatus of claim 1, wherein, The amplitude calibration main ruler (5) and the main body support (9) are vertically connected.
3. A vibration frequency verification device for a tap density instrument, comprising: The clamping mechanism, the frequency calibration support (12), the frequency calibration sensor movable frame (13), the frequency calibration sensor (14), the frequency calibration sensor lead wire (15), the frequency calibration sensor head (16) and the frequency calibration controller (19) are characterized in that the clamping mechanism comprises two butterfly nuts (8), a main body support (9), two embracing frames (10), two embracing frame hooks (11) and two embracing frame bolts (17), the lower end of each embracing frame (10) is fixed with an embracing frame hook (11), the upper end of each embracing frame (10) is fixed with an embracing frame bolt (17), each side of the main body support (9) is provided with a strip-shaped through hole, the two embracing frame bolts (17) pass through the through holes on the two sides of the main body support (9) and are respectively screwed with the butterfly nuts (8); the lower end of the frequency calibration support (12) is fixedly connected with the middle position of the upper end surface of the main body support (9), the frequency calibration sensor movable frame (13) is slidably connected with the frequency calibration support (12), the frequency calibration sensor (14) is installed on the frequency calibration sensor movable frame (13), the frequency calibration sensor head (16) is arranged on one end of the frequency calibration sensor (14), one end of the frequency calibration sensor lead wire (15) is electrically connected with the frequency calibration sensor (14), and the other end of the frequency calibration sensor lead wire (15) is electrically connected with the frequency calibration controller (19).
4. The vibration frequency verification device for a tap density apparatus of claim 3, wherein, The frequency calibration support (12) and the main body support (9) are vertically connected.