Single-screw flowmeter

Abstract

The utility model belongs to the technical field of measuring instruments, and provides a single-screw flowmeter. The heat exchanger comprises a shell, a through flow channel is formed in the length direction of the shell, and an inlet fixing plate, an inlet mounting plate, an outlet mounting plate and an outlet fixing plate are sequentially arranged in the flow channel in the medium flowing direction. The inlet fixing plate and the inlet mounting plate are arranged at intervals, the outlet mounting plate and the outlet fixing plate are arranged at intervals, and the inlet mounting plate, the flow channel and the outlet mounting plate form a detection cavity; the screw rod is located in the detection cavity, the two ends of the screw rod are rotationally connected with the inlet mounting plate and the outlet mounting plate respectively, and gaps are formed between the two end faces of the screw rod and the inlet fixing plate and between the two end faces of the screw rod and the outlet fixing plate respectively. According to the flow meter, the service life of the screw rod is prolonged, and then the service life of the flow meter is prolonged; the structure is simple and the processing cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring instruments, in particular to a single-screw flow meter. Background Art

[0002] A flow meter is an instrument that measures the flow rate and / or the total amount of fluid in a selected time interval. Among them, the single screw flow meter, as one of the flow meters for liquid flow detection, is mainly used in the fields of new energy battery thermal conductive adhesive, thermal conductive structural adhesive and adhesive containing abrasives.

[0003] When an adhesive containing larger particle fillers is tested through a single-screw flowmeter, the particle fillers often get stuck inside the measurement chamber of the single-screw flowmeter, causing the single-screw flowmeter to measure inaccurately or fail, shortening the service life of the single-screw flowmeter.

[0004] Therefore, a new technical solution is needed to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a single screw flow meter to solve the problem of short service life of the single screw flow meter in the prior art.

[0006] To achieve the above-mentioned purpose and other related purposes, the utility model provides a single-screw flowmeter, which is specifically configured as follows: it includes a shell, a through flow channel is arranged along the length direction of the shell, an inlet fixing plate, an inlet mounting plate, an outlet mounting plate and an outlet fixing plate are arranged in sequence inside the flow channel along the flow direction of the medium, the inlet fixing plate and the inlet mounting plate, and the outlet mounting plate and the outlet fixing plate are spaced apart, the inlet mounting plate, the flow channel and the outlet mounting plate form a detection cavity; a screw is located in the detection cavity, the two ends of the screw are respectively rotatably connected to the inlet mounting plate and the outlet mounting plate, and gaps are respectively arranged between the two end surfaces of the screw and the inlet fixing plate and the outlet fixing plate.

[0007] Optionally, a magnetic component that rotates synchronously with the screw is connected to the side of the screw facing the outlet mounting plate; a detection component is connected to the circumferential side wall of the shell, and the detection component includes a sensor, and the sensor is arranged corresponding to the magnetic component.

[0008] Optionally, the magnetic assembly includes a disk body and a magnet, a plurality of mounting holes are evenly arranged on the circumferential side wall of the disk body, a magnet is arranged in each mounting hole, and two adjacent magnets have opposite magnetisms on one side close to the side wall of the disk body.

[0009] Optionally, the magnetic assembly further comprises a magnetic shell, the magnetic shell is provided with a mounting opening, and the disk body is embedded in the mounting opening.

[0010] Optionally, the flow meter further comprises a spacer, and the spacer is disposed between the inlet fixing plate and the inlet mounting plate, and between the outlet mounting plate and the outlet fixing plate.

[0011] Optionally, a limiting boss is provided in the middle of the spacer, and connecting pins are provided at both ends of the limiting boss, and the connecting pins are used to connect the inlet fixing plate and the inlet mounting plate, and the outlet mounting plate and the outlet fixing plate, and the two end surfaces of the limiting boss respectively abut against the inlet fixing plate and the inlet mounting plate, and the outlet mounting plate and the outlet fixing plate.

[0012] Optionally, the flow meter further includes a limiting ball, the limiting ball is connected to both the inlet fixing plate and the outlet fixing plate, and both end surfaces of the screw rod abut against the limiting ball.

[0013] Optionally, the flow meter further comprises a shaft sleeve, and the screw rod is rotatably connected to the inlet mounting plate and the outlet mounting plate respectively through the shaft sleeve.

[0014] Optionally, the inlet fixing plate, the inlet mounting plate, the outlet mounting plate and the outlet fixing plate are all provided with flow holes, and the medium flows into and out of the detection cavity through the flow holes.

[0015] Optionally, an inlet step and an outlet step are respectively provided at both ends of the flow channel, the inlet mounting plate is pressed on the inlet step, and the outlet mounting plate is pressed on the outlet step; the flow channel and the inlet fixing plate, as well as the flow channel and the outlet fixing plate are all threadedly connected.

[0016] As described above, the single screw flow meter of the utility model has the following beneficial effects:

[0017] By setting gaps between the inlet fixing plate and the inlet mounting plate, and between the outlet mounting plate and the outlet fixing plate, the two end surfaces of the screw located in the detection chamber can be respectively set with the gap between the inlet fixing plate and the outlet fixing plate. When the flow meter of the present application detects a medium containing larger particle fillers, the particle fillers will not be stuck at the end of the screw, which is beneficial to improving the service life of the screw, and further beneficial to improving the service life of the flow meter of the present application; the structure is simple and the processing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a schematic diagram of the structure of a single screw flow meter according to an embodiment of the utility model;

[0019] Figure 2Shown is a schematic cross-sectional structure diagram of a single screw flow meter according to an embodiment of the utility model;

[0020] Figure 3 Shown is a schematic structural diagram of a housing according to an embodiment of the utility model;

[0021] Figure 4 Shown is a schematic structural diagram of an inlet fixing plate of an embodiment of the utility model;

[0022] Figure 5 Shown is a schematic structural diagram of a spacer according to an embodiment of the utility model;

[0023] Figure 6 Display as Figure 2 Schematic diagram of the structure of the local A in the middle;

[0024] Figure 7 Shown is a schematic structural diagram of a disk body according to an embodiment of the utility model.

[0025] Part Number Description

[0026] 1-housing; 11-flow channel; 12-detection chamber; 13-entrance step; 14-exit step; 15-installation slot;

[0027] 2-inlet fixing plate; 21-flow hole; 22-limiting ball;

[0028] 3-import mounting plate; 31-shaft sleeve;

[0029] 4-Export mounting plate;

[0030] 5-Export fixing plate;

[0031] 6- screw;

[0032] 7-spacer; 71-limiting boss; 72-connecting pin;

[0033] 8-magnetic component; 81-disk body; 811-mounting hole; 82-magnetic steel; 83-magnetic shell;

[0034] 9-detection component; 91-sensor; 92-detection board. DETAILED DESCRIPTION

[0035] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0036] It should be noted that the diagram provided in the present embodiment only illustrates the basic concept of the present invention in a schematic manner, so the diagram only shows the components related to the present invention rather than drawing according to the number, shape and size of the components during actual implementation. The form, quantity and proportion of each component during actual implementation can be changed at will, and the component layout form may also be more complicated. The structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can implement, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effect that the present invention can produce and the purpose that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of narration, and are not used to limit the scope of the present invention. The change or adjustment of its relative relationship should also be regarded as the scope of the present invention without substantial change of the technical content.

[0037] like Figure 1 to Figure 2 As shown, some embodiments of the present application provide a single screw flowmeter, including a housing 1, an inlet fixing plate 2, an inlet mounting plate 3, an outlet mounting plate 4, an outlet fixing plate 5 and a screw 6.

[0038] The housing 1 is provided with a through flow channel 11 along its length direction for passing the medium for flow detection. The inlet fixing plate 2, the inlet mounting plate 3, the outlet mounting plate 4 and the outlet fixing plate 5 are installed inside the flow channel 11 and are arranged in sequence along the direction of medium flow, and gaps are provided between the inlet fixing plate 2 and the inlet mounting plate 3, and between the outlet mounting plate 4 and the outlet fixing plate 5.

[0039] The inlet mounting plate 3, the flow channel 11 and the outlet mounting plate 4 form a detection chamber 12, and the screw 6 is located in the detection chamber 12. The two ends of the screw 6 are rotatably connected to the inlet mounting plate 3 and the outlet mounting plate 4, respectively, and gaps are provided between the two end surfaces of the screw 6 and the inlet fixing plate 2 and the outlet fixing plate 5, respectively. When the flow meter of the present application is used to detect a medium containing relatively large solid particles, due to the setting of the above-mentioned gap, the solid particles are not easily stuck at the end of the screw 6, and will flow into or out of the flow channel 11 with the medium, avoiding the solid particles from being stuck at the two ends of the screw 6, thereby facilitating the improvement of the service life of the screw 6, and further improving the service life of the flow meter of the present application.

[0040] Exemplarily, the medium may be a liquid containing solid particles, wherein the content of the solid particles may be greater than or equal to 30%.

[0041] like Figure 3As shown, specifically, an inlet step 13 and an outlet step 14 are respectively provided at both ends of the flow channel 11 of the housing 1, the inlet mounting plate 3 is pressed on the inlet step 13, and the outlet mounting plate 4 is pressed on the outlet step 14. By controlling the machining accuracy and assembly accuracy of the inlet mounting plate 3 and the inlet step 13, and the outlet mounting plate 4 and the outlet step 14, the coaxiality of the two ends of the screw 6 is improved, which is conducive to improving the accuracy of the flow meter detection of the present application.

[0042] The flow channel 11 of the shell 1 and the inlet fixing plate 2, the flow channel 11 of the shell 1 and the outlet fixing plate 5 are all connected by threads, which is conducive to adjusting the gap size between the inlet mounting plate 3 and the inlet fixing plate 2, and between the outlet mounting plate 4 and the outlet fixing plate 5.

[0043] It should be noted that more than two cutting platforms are provided on the circumferential side walls at both ends of the housing 1 , which is beneficial for installing the inlet fixing plate 2 and the outlet fixing plate 5 .

[0044] like Figure 4 As shown, in some embodiments, the inlet fixing plate 2, the inlet mounting plate 3, the outlet mounting plate 4 and the outlet fixing plate 5 are all provided with flow holes 21, and the medium flows into or out of the detection chamber 12 through the flow holes 21 to detect the flow rate of the medium per unit time.

[0045] It should be noted that the flow holes 21 on the inlet fixing plate 2 and the inlet mounting plate 3 , the outlet mounting plate 4 and the outlet fixing plate 5 are arranged correspondingly to reduce the resistance of the medium flowing in the flow channel 11 .

[0046] Exemplarily, the inlet fixing plate 2 and the outlet fixing plate 5 can be set to have similar structures, only different in size. The inlet mounting plate 3 and the outlet mounting plate 4 can be set to have similar structures, only different in size. The inlet fixing plate 2 and the inlet mounting plate 3, the outlet mounting plate 4 and the outlet fixing plate 5 are all adapted and set according to the size of the flow channel 11.

[0047] In some embodiments, spacers 7 are provided between the inlet fixing plate 2 and the inlet mounting plate 3, and between the outlet mounting plate 4 and the outlet fixing plate 5, so as to precisely control the gap size between the inlet fixing plate 2 and the inlet mounting plate 3, and between the outlet mounting plate 4 and the outlet fixing plate 5.

[0048] like Figure 5As shown, illustratively, a limiting boss 71 is provided in the middle of the spacer 7, and connecting pins 72 are provided at both ends of the limiting boss 71. The connecting pin 72 is used to connect the inlet fixing plate 2 and the inlet mounting plate 3, the outlet mounting plate 4 and the outlet fixing plate 5, and the two end surfaces of the limiting boss 71 are respectively abutted on the inlet fixing plate 2 and the inlet mounting plate 3, and the outlet mounting plate 4 and the outlet fixing plate 5. By adjusting the axial size of the limiting boss 71, the gap size between the inlet mounting plate 3 and the inlet fixing plate 2, and the outlet mounting plate 4 and the outlet fixing plate 5 can be adjusted. Such a setting can also prevent the inlet mounting plate 3 and the outlet mounting plate 4 from rotating in the flow channel 11 under the action of the rotational inertia force of the screw 6, resulting in inaccurate medium flow detection.

[0049] In this embodiment, two spacers 7 are provided between the inlet mounting plate 3 and the inlet fixing plate 2, and between the outlet mounting plate 4 and the outlet fixing plate 5, so as to ensure the stability of the connection between the two and also ensure the spacing size between the two.

[0050] In some embodiments, a limiting ball 22 is installed on the side of the inlet fixing plate 2 facing the detection chamber 12, and a limiting ball 22 is also installed on the side of the outlet fixing plate 5 facing the detection chamber 12. The two end surfaces of the screw 6 are respectively in contact with the two limiting balls 22, so that the limiting balls 22 limit the axial direction of the screw 6. The setting of the limiting ball 22 can reduce the contact area between itself and the end of the screw 6, thereby reducing the friction between the limiting ball 22 and the end of the screw 6, which is conducive to ensuring the accuracy of the flow meter detection of the present application.

[0051] Exemplarily, the limiting ball 22 can be set as a spherical object such as a steel ball.

[0052] It should be noted that a shaft sleeve 31 is installed on both the inlet mounting plate 3 and the outlet mounting plate 4 , and the screw rod 6 is rotatably connected with the inlet mounting plate 3 and the outlet mounting plate 4 through the shaft sleeve 31 to reduce the friction resistance of the screw rod 6 during rotation.

[0053] like Figure 6 As shown, in some embodiments, a magnetic component 8 is installed on one side of the screw 6 facing the outlet mounting plate 4, and the magnetic component 8 is sleeved on the screw 6 and rotates synchronously with the screw 6. A detection component 9 is installed on the circumferential side wall of the housing 1, and the detection component 9 includes a sensor 91, which is arranged corresponding to the magnetic component 8 to detect the rotation speed of the magnetic component 8, that is, to detect the rotation speed of the screw 6, and then determine the flow rate of the medium per unit time.

[0054] Exemplarily, the magnetic assembly 8 includes a disk 81 and a magnetic steel 82. Figure 7As shown, a plurality of mounting holes 811 are evenly arranged on the circumferential side wall of the disk body 81. A magnet 82 is arranged in each mounting hole 811, and the two adjacent magnets 82 have opposite magnetic properties on the side of the disk body 81 side wall, which is conducive to the sensor 91 detecting the rotation speed of the disk body 81.

[0055] Specifically, the magnetic assembly 8 further includes a magnetic shell 83 , and a mounting opening is provided on the magnetic shell 83 , and the disk body 81 is embedded in the mounting opening, which is helpful to prevent the medium from corroding the magnetic steel 82 .

[0056] It should be noted that a boss is provided on the side of the disk body 81 facing the screw rod 6 , and the boss passes through the installation opening of the magnetic shell 83 .

[0057] Exemplarily, the sensor 91 is disposed on the detection plate 92 . A mounting groove 15 is disposed on the circumferential side wall of the housing 1 , the detection plate 92 is mounted at the bottom of the mounting groove 15 , and the sensor 91 is mounted toward the flow channel 11 .

[0058] To sum up, the utility model provides a single-screw flowmeter, which sets gaps between the inlet fixing plate and the inlet mounting plate, and between the outlet mounting plate and the outlet fixing plate, so that the two end surfaces of the screw located in the detection chamber can be respectively set with the gap between the inlet fixing plate and the outlet fixing plate. When the flowmeter of the present application detects a medium containing larger particle fillers, the particle fillers will not be stuck at the end of the screw, which is beneficial to improve the service life of the screw, and further help to improve the service life of the flowmeter of the present application; and the structure is simple and the processing cost is low.

[0059] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A single screw flow meter, characterized in that: include: The housing is provided with a through flow channel along its length direction, and an inlet fixing plate, an inlet mounting plate, an outlet mounting plate and an outlet fixing plate are sequentially arranged inside the flow channel along the flow direction of the medium, and the inlet fixing plate and the inlet mounting plate, and the outlet mounting plate and the outlet fixing plate are spaced apart, and the inlet mounting plate, the flow channel and the outlet mounting plate form a detection cavity; A screw rod is located in the detection cavity, and two ends of the screw rod are rotatably connected to the inlet mounting plate and the outlet mounting plate respectively, and gaps are respectively arranged between the two end surfaces of the screw rod and the inlet fixing plate and the outlet fixing plate.

2. The single screw flow meter according to claim 1, characterized in that: A magnetic component that rotates synchronously with the screw is connected to the side of the screw that faces the outlet mounting plate; a detection component is connected to the circumferential side wall of the shell, and the detection component includes a sensor, which is arranged corresponding to the magnetic component.

3. The single screw flow meter according to claim 2, characterized in that: The magnetic assembly includes a disk body and a magnet. A plurality of mounting holes are evenly arranged on the circumferential side wall of the disk body. A magnet is arranged in each mounting hole, and two adjacent magnets have opposite magnetisms on the side close to the side wall of the disk body.

4. The single screw flow meter according to claim 3, characterized in that: The magnetic assembly further comprises a magnetic shell, the magnetic shell is provided with a mounting opening, and the disk body is embedded in the mounting opening.

5. The single screw flow meter according to claim 1, characterized in that: The flow meter further comprises a spacer, and the spacer is disposed between the inlet fixing plate and the inlet mounting plate, and between the outlet mounting plate and the outlet fixing plate.

6. The single screw flow meter according to claim 5, characterized in that: A limiting boss is provided in the middle of the spacer, and connecting pins are provided at both ends of the limiting boss. The connecting pins are used to connect the inlet fixing plate and the inlet mounting plate, the outlet mounting plate and the outlet fixing plate, and the two end surfaces of the limiting boss are respectively abutted against the inlet fixing plate and the inlet mounting plate, the outlet mounting plate and the outlet fixing plate.

7. The single screw flow meter according to claim 1, characterized in that: The flow meter further comprises a limiting ball, the limiting balls are connected to both the inlet fixing plate and the outlet fixing plate, and both end surfaces of the screw rod abut against the limiting balls.

8. The single screw flow meter according to claim 1, characterized in that: The flow meter further comprises a shaft sleeve, through which the screw rod is rotatably connected to the inlet mounting plate and the outlet mounting plate respectively.

9. The single screw flow meter according to claim 1, characterized in that: The inlet fixing plate, the inlet mounting plate, the outlet mounting plate and the outlet fixing plate are all provided with flow holes, and the medium flows into and out of the detection cavity through the flow holes.

10. The single screw flow meter according to claim 1, characterized in that: An inlet step and an outlet step are respectively arranged at both ends of the flow channel, the inlet mounting plate is pressed on the inlet step, and the outlet mounting plate is pressed on the outlet step; the flow channel and the inlet fixing plate, as well as the flow channel and the outlet fixing plate are all threadedly connected.

Images