Suspension module for liquid measurement

Abstract

The utility model discloses a suspension module for liquid measurement. The suspension module comprises a hollow suspension shell, a balancing weight, a rotating shaft and a plurality of torsional elastic pieces. The suspension shell comprises a supporting piece, a cylindrical shell and a cone frustum which are coaxial and distributed from top to bottom, the supporting piece is a round piece and fixedly connected with the upper end of the cylindrical shell, and the upper end of the cone frustum is integrally connected with the lower end of the cylindrical shell and the cone tip of the cone frustum faces downwards. The balancing weight is detachably connected with the lower plane of the conical tip of the cylindrical shell through a vertical threaded piece, and the balancing weight is matched with the density of liquid to be measured. The rotating shaft is coaxially arranged above the supporting piece of the suspension shell; the lower ends of the torsional elastic pieces are connected to the supporting pieces, and the upper ends of the torsional elastic pieces are connected with the rotating shaft. The device has the advantages of being simple in structure, capable of being used for measuring various parameters of measured liquid at the same time and high in measuring precision.

Description

Technical Field

[0001] The utility model relates to the field of industrial detection, in particular to a suspension module for liquid measurement. Background Art

[0002] Online measurement and control of fluid parameters are in great demand in the petrochemical and new energy industries, especially in the rapidly developing lithium battery industry. Measuring lithium battery slurry parameters (such as slurry density) is crucial to the quality of lithium battery products. While rotary meters are currently the industry's most predominant liquid measurement equipment, they suffer from the following drawbacks: First, their complex structure and numerous interference factors prevent them from accurately measuring liquid parameters (such as viscosity and density) online, making them unsuitable for online liquid measurement. Second, their poor suspension stability makes them unsuitable for measuring liquids of varying densities. Utility Model Content

[0003] In order to solve one or more of the above problems, the present invention provides a suspension module for liquid measurement.

[0004] According to one aspect of the present invention, the suspension module for liquid measurement includes: a suspension shell with a hollow interior, a counterweight, a rotating shaft, and a plurality of torsional elastic members;

[0005] The suspension shell includes a coaxial support member, a cylindrical shell, and a truncated cone distributed from top to bottom. The support member is a circular member and is fixedly connected to the upper end of the cylindrical shell. The upper end of the truncated cone is integrally connected to the lower end of the cylindrical shell with its cone tip facing downward.

[0006] The counterweight block and the lower plane of the cone tip of the cylindrical shell are detachably connected through a vertical threaded piece, and the counterweight block is adapted to the density of the liquid to be measured;

[0007] The rotating shaft is coaxially arranged above the support member of the suspension housing;

[0008] A plurality of torsion elastic members are arranged in a circular array with the rotation axis as the rotation axis. The lower ends of the torsion elastic members are connected to the support member and the upper ends are connected to the rotation axis.

[0009] In some embodiments, the vertical threaded member is a lower stud, which is integrally connected to the lower center of the lower wall of the frustum, and the lower stud is threadedly connected to the central threaded hole of the counterweight.

[0010] In some embodiments, the vertical threaded member is a screw or a bolt, which passes through the central through hole of the counterweight block and connects to the central threaded blind hole of the upper frustum.

[0011] In some embodiments, the suspension shell is a metal thin-walled shell, the cylindrical shell is a circular tube, and the frustum is a frustum shell with an open upper end and a sealed lower end; the upper end wall of the frustum and the lower end circular wall of the cylindrical shell are set with equal diameters and the two are welded into one.

[0012] In some embodiments, the support member and the cylindrical shell are removably connected by a circumferential thread or by several circumferential arrays of radial threads.

[0013] In some embodiments, the lower connecting end of the support member is sleeved with an equal diameter shaft on the inner wall of the cylindrical shell, the positioning shoulder of the support member is fitted and connected to the upper wall of the cylindrical shell, and the outer wall of the lower connecting end is provided with a circumferential thread or a plurality of radial threaded holes are arranged in a circumferential array.

[0014] In some embodiments, the reference rotor is rigidly mounted on the rotating shaft and rotates synchronously with the rotating shaft.

[0015] In some embodiments, the support member is a circular ring member, and a radial protrusion is provided in the middle of the support member.

[0016] In some embodiments, the support member is a circular plate, a first magnetic member is provided on the support member, and a second magnetic member is installed with respect to the reference rotor.

[0017] In some embodiments, the torsion elastic member is a spiral spring hairspring, the outer portion of the hairspring is mounted on the inner side of the support member and the inner portion thereof is mounted on the rotating shaft via a sleeve.

[0018] The advantages of the suspension module for liquid measurement are as follows: first, the suspension module has a simple structure. The suspension housing and the rotating shaft are connected only by a torsional elastic member (especially a hairspring). Therefore, the measurement of liquid parameters (viscosity, density) is not affected by friction and debris blockage of other structures, greatly improving the measurement accuracy. Second, a detachable counterweight is provided at the bottom of the suspension housing, which not only ensures the suspension stability of the suspension housing but also allows the weight of the counterweight to be adjusted to be applied to the density measurement of liquids with different density ranges. Third, the suspension module adopts a suspended rotor method, which can avoid the long-term downward gravity of the suspension housing from stretching and deforming the torsional elastic member (especially the hairspring), thereby improving the service life of the measurement device and the measurement accuracy. Fourth, the counterweight is connected by a vertical threaded member, which is quick and convenient to replace. Fifth, the support member is provided to enable the suspension housing to maintain its shape and size, and no deformation is caused during long-term measurement. Sixth, it can be used for simultaneous online measurement of multiple liquid parameters. For example, when measuring viscosity online, the density change of the liquid can also be measured by the change of axial displacement to obtain real-time density, effectively eliminating the influence of the density of the measured liquid on the viscosity, and accurately measuring viscosity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a suspension module for liquid measurement according to a first embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of a suspension module for liquid measurement according to a second embodiment of the present invention;

[0021] Figure 3 for Figure 1 and Figure 2 A schematic cross-sectional view of the suspension housing and the counterweight shown;

[0022] Figure 4 for Figure 3 An enlarged schematic diagram of the suspended shell shown (a);

[0023] Figure 5 for Figure 3 An enlarged schematic diagram of the suspension housing and the counterweight shown (II);

[0024] Suspension housing 1, cylindrical shell 10, radial through hole 101, support member 11, lower connecting end 110, radial threaded hole 111, positioning shoulder 112, frustum 12, vertical threaded member 13, radial threaded member 14, radial protrusion 15;

[0025] Counterweight 2, central threaded hole 21; rotating shaft 3, sleeve 31;

[0026] Torsion elastic member 4; reference rotor 5;

[0027] A first magnetic component 6 and a second magnetic component 7 . DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below with reference to the accompanying drawings. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.

[0029] Figures 1 to 5 The diagram schematically illustrates a suspension module for liquid measurement according to one embodiment of the present invention. As shown, the suspension module comprises: a hollow suspension housing 1, a counterweight 2, a rotating shaft 3, and several torsional elastic members 4.

[0030] The suspended shell 1 comprises a coaxial support member 11, a cylindrical shell 10, and a truncated cone 12, arranged from top to bottom. The support member 11 is circular and fixedly connected to the upper end of the cylindrical shell 10. The support member 11 and the cylindrical shell 10 are preferably detachably connected via a circumferential array of radial threads 14 or circumferential threads. The upper end of the truncated cone 12 is integrally connected to the lower end of the cylindrical shell 10, with its conical tip facing downward. The suspended shell 1 is preferably a thin-walled metal shell. The cylindrical shell 10 is tubular, and the truncated cone 12 is a conical shell with an open upper end and a sealed lower end.

[0031] The counterweight 2 and the lower plane of the cone tip of the cylindrical shell 10 are detachably connected through a vertical threaded member 13, and the counterweight 2 is adapted to the density of the liquid to be measured; preferably, the vertical threaded member 13 is a lower stud, which is integrally connected to the lower center of the lower wall of the frustum 12, and the lower stud is threadedly connected to the center threaded hole 21 of the counterweight 2 or the lower stud passes through the center through hole of the counterweight 2 and is threadedly connected to the nut member below.

[0032] The rotating shaft 3 is coaxially arranged above the support member 11 of the suspension housing 1;

[0033] Several torsional elastic members 4 are arranged in a circular array around the rotating shaft 3. Their lower ends are connected to the support member 11, and their upper ends are connected to the rotating shaft 3. The torsional elastic members 4 are preferably helical springs, the inner portion of which is mounted inside the support member 11 and the outer portion of which is mounted on the rotating shaft 3 via a sleeve 31.

[0034] This suspension module for liquid measurement utilizes an inverted conical shell structure composed of a cylindrical shell 10 and a truncated cone 12. This allows the suspension shell 1 to independently suspend in the liquid being measured and remain stable during rotation, with zero force applied. Therefore, by measuring the axial displacement of the suspension shell 1, the viscosity of the liquid can be calculated. The viscosity of the measured liquid can be obtained by measuring the phase difference between the suspension shell 1 and the reference rotor 4 on the rotating shaft 3. The following are beneficial effects: First, the suspension module has a simple structure. The suspension shell 1 and the rotating shaft 3 are connected only by a torsional elastic member 4 (particularly a hairspring). Therefore, the measurement of liquid parameters (viscosity and density) is not affected by friction or obstruction caused by other structures, greatly improving measurement accuracy. Second, a removable counterweight 2 is provided at the bottom of the suspension shell 1. This not only ensures the suspension stability of the suspension shell 1, but also allows the mass of the counterweight 2 to be adjusted for density measurements of liquids with different density ranges. Third, the suspension module adopts a suspended rotor method, which prevents the torsional elastic member 4 (particularly the hairspring) from being stretched and deformed by the long-term downward force of gravity on the suspension shell 1, thereby improving the service life and measurement accuracy of the measurement device. Fourthly, the counterweight 2 is connected by a vertical threaded part 13, which makes replacement quick and easy. Fifthly, the support part 11 is provided to enable the suspended shell 1 to maintain its shape and size, and there is no deformation during long-term measurement. Sixthly, it can be used for simultaneous online measurement of multiple liquid parameters. For example, when measuring viscosity online, the density change of the liquid can also be measured simultaneously through the change of axial displacement to obtain real-time density, effectively eliminating the influence of the density of the measured liquid on the viscosity, and the viscosity measurement is accurate.

[0035] In another preferred embodiment, the vertical threaded member 13 can also be a screw or bolt, which passes through the central through-hole of the counterweight 2 and connects to the central threaded blind hole of the upper frustum 12. This arrangement can reduce welding and deformation of the suspended shell 1, resulting in a high precision suspended shell, which is beneficial for accurately measuring liquid parameters.

[0036] Furthermore, the upper end wall of the truncated cone 12 and the lower end annular wall of the cylindrical shell 10 are of equal diameter and are welded or bent into one piece. Preferably, the suspension shell 1 can be made of 0.5 mm thick 316 stainless steel welded in sections.

[0037] Furthermore, the lower outer wall of the support member 11 is provided with a circumferential external thread, and the upper inner wall of the cylindrical shell 10 is provided with a circumferential internal thread, and the two are connected by the circumferential thread. Preferably, the lower connecting end 110 of the support member 11 is sleeved with an equal diameter on the inner wall of the cylindrical shell 10, and the positioning shoulder 112 of the support member 11 is in close contact with the upper wall of the cylindrical shell 10. The outer wall of the lower connecting end 110 is provided with a circumferential external thread. The beneficial effect is that the provision of the positioning shoulder 112 and the lower connecting end 110 can improve installation accuracy, which is beneficial for achieving precise measurement.

[0038] Furthermore, the support member 11 is provided with a plurality of radial threaded holes 111 arranged in a circumferential array, and the upper end of the cylindrical shell 10 is provided with a plurality of radial through-holes 101 arranged in a circumferential array. A plurality of radial threads 14 pass through the radial through-holes 101 and are threadedly connected to the radial threaded holes 111. Preferably, the lower connecting end 110 of the support member 11 is sleeved with an equal diameter on the inner wall of the cylindrical shell 10, and the positioning shoulder 112 of the support member 11 is in close contact with the upper wall of the cylindrical shell 10. The lower connecting end 110 is provided with a plurality of radial threaded holes 111 arranged in a circumferential array. This advantageous effect is that the provision of the positioning shoulder 112 and the lower connecting end 110 can improve installation accuracy, facilitating precise measurement.

[0039] Furthermore, reference rotor 5 is rigidly mounted on rotating shaft 3 and rotates synchronously with it. It is positioned higher than suspended housing 1 and has no contact with the measured liquid. Suspended housing 1 is only affected by the measured liquid, while the reference rotor is unaffected by external factors. The two work together to accurately measure the phase difference between the suspended housing and the reference rotor. This results in a highly accurate measurement, unaffected by other resistances.

[0040] Preferably, in embodiment 1, as Figure 1 As shown, the support member 11 is a circular ring member, and a radial protrusion 15 is provided in the middle of the support member 11 to facilitate the upper optical distance sensor to measure the rotation speed, axial displacement and phase difference between the reference rotor 5 and the suspended rotor of the suspended rotor suspension housing 1. Preferably, in embodiment 2, as shown in FIG. Figure 2 As shown, support member 11 is a circular plate with a first magnetic member 6 mounted on it. A second magnetic member 7 is mounted on the reference rotor 5. These components enable the magnetic ranging sensor to measure the rotational speed and axial displacement of the suspended rotor (suspended housing 1), as well as the phase difference between the reference rotor 5 and the suspended rotor. The advantages of this approach are that both implementations can simultaneously measure the rotational parameters of the reference and reference rotors, offering a simple structure and high reliability. These implementations can be applied to measurement environments with and without magnetic field interference.

[0041] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A suspension module for liquid measurement, characterized in that: It comprises: a suspension shell (1) with a hollow interior, a counterweight (2), a rotating shaft (3), and a plurality of torsional elastic members (4); The suspension shell (1) comprises a coaxial support member (11), a cylindrical shell (10), and a truncated cone (12) distributed from top to bottom, wherein the support member (11) is a circular member and is fixedly connected to the upper end of the cylindrical shell (10), and the upper end of the truncated cone (12) is integrally connected to the lower end of the cylindrical shell (10) with its cone tip facing downward; The counterweight (2) and the lower plane of the cone tip of the cylindrical shell (10) are detachably connected via a vertical threaded member (13), and the counterweight (2) is adapted to the density of the liquid to be measured; The rotating shaft (3) is coaxially arranged above the support member (11) of the suspension housing (1); A plurality of the torsion elastic members (4) are arranged in a circular array with the rotation axis (3) as the rotation axis, and the lower ends of the torsion elastic members (4) are connected to the support member (11) and the upper ends are connected to the rotation axis (3).

2. The suspension module for liquid measurement according to claim 1, characterized in that: The vertical threaded member (13) is a lower stud, which is integrally connected to the lower center of the lower wall of the truncated cone (12), and is threadedly connected to the central threaded hole (21) of the counterweight block (2).

3. The suspension module for liquid measurement according to claim 1, characterized in that: The vertical threaded member (13) is a screw or a bolt, which passes through the central through hole of the counterweight (2) and connects to the central threaded blind hole of the upper frustum (12).

4. The suspension module for liquid measurement according to claim 2 or 3, characterized in that: The suspension shell (1) is a metal thin-wall shell, the cylindrical shell (10) is a circular tube, and the truncated cone (12) is a truncated cone shell with an open upper end and a sealed lower end; the upper end wall of the truncated cone (12) and the lower end circular wall of the cylindrical shell (10) are arranged with equal diameters and are welded into one body.

5. The suspension module for liquid measurement according to claim 1, characterized in that: The support member (11) and the cylindrical shell (10) are detachably connected via a circumferential thread or detachably connected via a plurality of circumferential arrays of radial thread members (14).

6. The suspension module for liquid measurement according to claim 5, characterized in that: The lower connecting end (110) of the support member (11) is sleeved with an equal diameter on the inner wall of the cylindrical shell (10), the positioning shoulder (112) of the support member (11) is fitted and connected to the upper wall of the cylindrical shell (10), and the outer wall of the lower connecting end (110) is provided with a circumferential thread or a plurality of radial threaded holes (111) arranged in a circumferential array.

7. The suspension module for liquid measurement according to claim 1, characterized in that: The reference rotor (5) is rigidly mounted on the rotating shaft (3) and rotates synchronously with the rotating shaft (3).

8. The suspension module for liquid measurement according to claim 5, characterized in that: The support member (11) is a circular ring member, and a radial protrusion (15) is provided in the middle of the support member (11).

9. The suspension module for liquid measurement according to claim 7, characterized in that: The support member (11) is a circular plate. A first magnetic member (6) is provided on the support member (11), and a second magnetic member (7) is installed with reference to the rotor (5).

10. The suspension module for liquid measurement according to claim 1, characterized in that: The torsion elastic member (4) is a spiral spring hairspring, the outer portion of which is mounted on the inner side of the support member (11) and the inner portion of which is mounted on the rotating shaft (3) via a shaft sleeve (31).

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