CN221010611U

CN221010611U - Inertial force measuring device

Info

Publication number: CN221010611U
Application number: CN202321847593.6U
Authority: CN
Inventors: 赵章献; 张俊浩; 杨家军; 许乾文
Original assignee: Wuhan Marine Machinery Plant Co Ltd
Current assignee: Wuhan Marine Machinery Plant Co Ltd
Priority date: 2023-07-13
Filing date: 2023-07-13
Publication date: 2024-05-24
Anticipated expiration: 2033-07-13

Abstract

The utility model provides a measuring device of inertial force, measuring device includes urceolus and sensor assembly, the urceolus includes protection section of thick bamboo and signal shielding section of thick bamboo, the protection section of thick bamboo cover is in the outside of signal shielding section of thick bamboo, just the outer protective layer with signal shielding section of thick bamboo is connected, the inside of signal shielding section of thick bamboo has confined installation cavity, sensor assembly is located the installation cavity, and with signal shielding section of thick bamboo is connected. The measuring device provided by the disclosure can protect the sensor.

Description

Inertial force measuring device

Technical Field

The disclosure relates to the technical field of sensors, and in particular relates to a measuring device for inertial force.

Background

The inertial force is a tendency of an object to maintain an original motion state due to inertia when the object accelerates, and if the object is used as a reference, an opposite force appears to act on the object, and this opposite force is referred to as an inertial force. Inertial forces can be used to describe how fast an object's velocity changes.

In the related art, inertial force is typically detected by a measuring device that includes one or several motion sensors packaged together. Among them, the motion sensor includes an acceleration sensor, a gyroscope, a geomagnetic sensor, and the like. In the detection, the measuring device is mounted on the object to be detected. And obtaining the magnitude of the inertia force according to the data change of each motion sensor in the measuring device in motion.

However, the motion sensor connected to the moving object can feel huge impact caused by air flow in the process of moving the object to be detected, so that the motion sensor is easily damaged, further the subsequent detection is affected, and the detection efficiency is low.

Disclosure of utility model

The embodiment of the disclosure provides a measuring device for inertial force, which can protect a sensor and improve detection efficiency. The technical scheme is as follows:

The embodiment of the disclosure provides a measuring device of inertial force, measuring device includes urceolus and sensor assembly, the urceolus includes protection section of thick bamboo and signal shielding section of thick bamboo, the protection section of thick bamboo cover is in the outside of signal shielding section of thick bamboo, just the outer protective layer with signal shielding section of thick bamboo is connected, the inside of signal shielding section of thick bamboo has confined installation cavity, sensor assembly is located the installation cavity, and with signal shielding section of thick bamboo is connected.

In yet another implementation of the present disclosure, the signal shielding cylinder includes an aluminum intermediate layer and a cast iron inner layer, the aluminum intermediate layer is sleeved outside the cast iron inner layer and connected with the cast iron inner layer, and the aluminum intermediate layer is located inside the protection cylinder and connected with the protection cylinder.

In yet another implementation of the present disclosure, the aluminum intermediate layer is threaded with the protective cylinder and the cast iron inner layer is interference fit within the aluminum intermediate layer.

In yet another implementation of the present disclosure, the sensor assembly includes a housing and a plurality of sensors; the inside of shell has confined first cavity, a plurality of sensors embedment in first cavity, and with the shell bonds together, the shell is located the cast iron inlayer and with cast iron inlayer is connected.

In yet another implementation of the present disclosure, the housing further has a second cavity inside, the second cavity and the first cavity being arranged along an axial direction of the outer cylinder; the sensor assembly further comprises a processor, wherein the processor is encapsulated in the second cavity and is bonded with the shell, and the processor is electrically connected with the sensor.

In yet another implementation manner of the present disclosure, a third cavity is further provided inside the housing, and the third cavity, the second cavity and the first cavity are sequentially arranged along the axial direction of the outer cylinder; the sensor assembly further comprises a battery which is encapsulated in the third cavity and is adhered to the shell, and the battery is electrically connected with the processor and the sensor respectively.

In yet another implementation of the present disclosure, the housing includes a barrel, a baffle, and a support ring; along the axial direction of the cylinder, the partition plate and the support ring are sequentially positioned in the cylinder, and are respectively connected with the inner wall of the cylinder; the second cavity is located between the partition board and the supporting ring, the first cavity and the second cavity are located on two opposite sides of the partition board respectively, and the second cavity and the third cavity are located on two opposite sides of the supporting ring respectively.

In yet another implementation manner of the disclosure, the outer wall of the cylinder has two oppositely arranged positioning planes and two cambered surfaces connected between the two positioning planes, the two cambered surfaces are located on the same circumference, a plane where the positioning planes are located is parallel to the axis of the cylinder, and the two positioning planes are located on two sides of the axis of the cylinder respectively and are located in the circumference.

In yet another implementation of the present disclosure, the outer wall of the protective cylinder has at least one support plane that is parallel to the axis of the protective cylinder.

In yet another implementation of the present disclosure, the protective cylinder is a steel structural member.

The technical scheme provided by the embodiment of the disclosure has the beneficial effects that:

When the measuring device for the inertia force provided by the embodiment of the disclosure is used for measuring a moving object, the protection barrel in the measuring device is sleeved outside the signal shielding barrel and is connected with the signal shielding barrel, so that the sensor assembly inside the signal shielding barrel can be protected through the protection barrel, the sensor assembly is prevented from being damaged due to the impact of external air flow, and meanwhile, the signal shielding can be carried out through the signal shielding barrel, so that the sensor assembly is prevented from being interfered by external signals. Meanwhile, the inertial force of the moving object can be detected through the sensor assembly.

Therefore, the measuring device can prevent the sensor assembly from being exposed outside during detection, so that the sensor assembly is protected, the air flow impact in the outside air is reduced, and the detection efficiency is greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic diagram of an inertial force measurement device according to an embodiment of the present disclosure;

FIG. 2 is a top view of FIG. 1 taken along the direction A-A;

FIG. 3 is a top view of FIG. 1 in the direction B-B;

fig. 4 is a schematic structural view of a mounting fork according to an embodiment of the present disclosure.

The symbols in the drawings are as follows:

1. An outer cylinder; 11. a protective cylinder; 110. a support plane; 12. a signal shielding cylinder; 121. an aluminum intermediate layer; 122. an inner layer of cast iron; 10. a mounting cavity;

2. A sensor assembly; 21. a housing; 211. a cylinder; 2110. positioning a plane; 2115. a cambered surface; 2111. a middle barrel; 2112. an end plate; 213. a partition plate; 214. a support ring; 22. a sensor; 23. a processor; 24. a battery;

201. a first cavity; 202. a second cavity; 203. a third cavity;

300. Assembling a fork; 301. a first assembly bar; 302. and a second assembly bar.

Detailed Description

For the purposes of clarity, technical solutions and advantages of the present disclosure, the following further details the embodiments of the present disclosure with reference to the accompanying drawings.

The embodiment of the disclosure provides a measuring device for inertial force, as shown in fig. 1, the measuring device comprises an outer barrel 1 and a sensor assembly 2, the outer barrel 1 comprises a protection barrel 11 and a signal shielding barrel 12, the protection barrel 11 is sleeved outside the signal shielding barrel 12, the protection barrel 11 is connected with the signal shielding barrel 12, a closed installation cavity 10 is formed inside the signal shielding barrel 12, and the sensor assembly 2 is located in the installation cavity 10 and is connected with the signal shielding barrel 12.

When the measuring device for the inertial force provided by the embodiment of the disclosure is used for measuring a moving object, the protection barrel 11 in the measuring device is sleeved outside the signal shielding barrel 12 and is connected with the signal shielding barrel 12, so that the sensor assembly 2 inside the signal shielding barrel 12 can be protected through the protection barrel 11, the sensor assembly 2 is prevented from being damaged due to the impact of external air flow, and meanwhile, the signal shielding can be carried out through the signal shielding barrel 12, and the sensor assembly 2 is prevented from being disturbed by external signals. The inertial force of the moving object can be detected by the sensor assembly 2.

Therefore, the measuring device can prevent the sensor assembly 2 from being exposed outside during detection, so that the sensor assembly 2 is protected, the air flow impact in the outside air is reduced, and the detection efficiency is greatly improved.

Optionally, the protective cylinder 11 is a steel structural member.

In the above embodiment, the protection cylinder 11 is configured as a steel structural member, so that the steel outer layer resists impact generated when external movement is performed, thereby strongly protecting the sensor assembly 2.

Fig. 2 is a top view of fig. 1 taken along A-A, and in combination with fig. 2, optionally, the signal shielding cylinder 12 includes an aluminum intermediate layer 121 and a cast iron inner layer 122, the aluminum intermediate layer 121 is sleeved outside the cast iron inner layer 122 and connected with the cast iron inner layer 122, and the aluminum intermediate layer 121 is located inside the protection cylinder 11 and connected with the protection cylinder 11.

In the above-described implementation, the signal shielding cylinder 12 is provided with the aluminum intermediate layer 121 and the cast iron inner layer 122, so that the electromagnetic waves of high frequency can be shielded by the aluminum intermediate layer 121, and the electromagnetic fields induced in the electromagnetic shield can be used to mutually counteract external electromagnetic interference. While the cast iron inner layer 122 is used to shield static and low frequency electromagnetic waves from external signals interfering with the operation of the sensor assembly 2.

Illustratively, the cast iron inner layer 122 is a ductile iron inner layer, and the aluminum intermediate layer 121 is a high hard aluminum intermediate layer.

Optionally, an aluminum intermediate layer 121 is screwed with the protective cylinder 11, and a cast iron inner layer 122 is interference fitted in the aluminum intermediate layer 121. This facilitates assembly to form the outer barrel 1.

Optionally, the outer wall of the protective cylinder 11 has at least one supporting plane 110, the plane of which supporting plane 110 is parallel to the axis of the protective cylinder 11.

In the above embodiment, at least one support plane 110 is provided on the outer wall of the protective sleeve 11, so that the measuring device can be connected to a moving object via the support plane 110, so that it can be easily assembled on the moving object.

Referring again to fig. 1, optionally, the sensor assembly 2 includes a housing 21 and a plurality of sensors 22. The interior of the housing 21 has a closed first cavity 201, and a plurality of sensors 22 are potted in the first cavity 201 and bonded to the housing 21, the housing 21 being located within the cast iron inner layer 122 and connected to the cast iron inner layer 122.

In the above-described implementation, the sensor assembly 2 is provided as the housing 21 and the plurality of sensors 22, such that the sensor 22 can be provided with a mounting base by the housing 21, while the sensor assembly 2 can be fitted into the outer cylinder 1 by connecting the housing 21 with the cast iron inner layer 122. And a plurality of sensors 22 may detect inertial forces of the moving object.

Illustratively, the plurality of sensors 22 include acceleration sensors for detecting X, Y and a Z direction, wherein X, Y and the Z direction are perpendicular to each other, and the Z direction is the same as the axial direction of the outer cylinder 1. The X-direction and the Y-direction are any two mutually perpendicular directions parallel to the cross section of the outer tube 1.

The potting means that the liquid compound is mechanically or manually poured into a device with electronic components or circuits, and cured into a thermosetting polymer insulating material with excellent performance under normal temperature or heating conditions.

In this embodiment, the sensor is connected to the housing 21 by a high strength adhesive, and is encapsulated in the housing 21 by an encapsulating material formed of an epoxy resin and a curing agent (weight ratio 5:1). This further protects the sensor 22 and also enables accurate information to be transferred to the sensor 22.

Optionally, the housing 21 further has a second cavity 202 inside, and the second cavity 202 and the first cavity 201 are arranged along the axial direction of the outer cylinder 1.

The sensor assembly 2 further includes a processor 23, the processor 23 being potted in the second cavity 202 and bonded to the housing 21, the processor 23 being electrically connected to the sensor 22.

In the above implementation, the processor 23 is configured to store and analyze the detection data of the sensor 22, so that a worker can directly check the detection result.

Optionally, the housing 21 further has a third cavity 203 inside, and the third cavity 203, the second cavity 202 and the first cavity 201 are sequentially arranged along the axial direction of the outer cylinder 1.

The sensor assembly 2 further comprises a battery 24, the battery 24 being encapsulated in the third cavity 203 and bonded to the housing 21, the battery 24 being electrically connected to the processor 23 and the sensor 22, respectively.

In the above implementation, the battery 24 is used to provide power to the sensor 22 and the processor 23 to enable the battery 24 and the sensor 22 to function properly.

The housing 21 is configured as three cavities above, so that the sensor 22, the processor 23 and the battery 24 can be provided with mounting bases through the three cavities in sequence, and the sensor 22, the processor 23 and the battery 24 can be separated into three independent cavities and isolated from each other.

Optionally, the housing 21 includes a barrel 211, a baffle 213, and a support ring 214. Along the axial direction of the cylinder 211, the partition 213 and the support ring 214 are sequentially located inside the cylinder 211, and the partition 213 and the support ring 214 are respectively connected with the inner wall of the cylinder 211.

The second cavity 202 is located between the partition 213 and the support ring 214, the first and second cavities 201 and 202 are located on opposite sides of the partition 213, respectively, and the second and third cavities 202 and 203 are located on opposite sides of the support ring 214, respectively.

In the above-described implementation, the case 21 is provided in a structure of the cylinder 211, the partition 213, the support ring 214, and the like, so that the sensor 22, the processor 23, the battery 24, and the like can be provided with a mounting base by the cylinder 211, while the cylinder 211 is divided into three chambers by the partition 213, the support ring 214, and the like to divide the sensor 22, the processor 23, and the battery 24 into three independent chambers.

In the present embodiment, the first cavity 201 and the second cavity 202 are respectively located at opposite sides of the partition 213, and the second cavity 202 and the third cavity 203 are respectively located at opposite sides of the support ring 214

Illustratively, the mounting of the processor 23 in the second cavity 202 and the mounting of the battery 24 in the third cavity 203 are encapsulated with a high-toughness encapsulating material of organosilicon and curing agent (weight ratio 10:1), so that energy generated by impact during detection can be absorbed by the adhesive formed after encapsulation, thereby improving the reliability and stability of the battery 24 and the processor 23, and enabling the battery 24 and the processor 23 to stably operate.

The cylinder 211 includes a middle cylinder 2111 and two end plates 2112, and the two end plates 2112 are detachably connected to both ends of the middle cylinder 2111, which facilitates mounting of the sensor 22 and the like in the cylinder 211.

Fig. 3 is a top view of fig. 1 along direction B-B, and in combination with fig. 3, optionally, the outer wall of the cylinder 211 has two positioning planes 2110 arranged oppositely and two cambered surfaces 2115 connected between the two positioning planes 2110, the two cambered surfaces 2115 are located on the same circumference, the plane where the positioning planes 2110 are located is parallel to the axis of the cylinder 211, and the two positioning planes 2110 are located on two sides of the axis of the cylinder 211 respectively and are located in the circumference.

In the above implementation, the positioning plane 2110 is used to position the cylinder 211, so that the cylinder 211 can be centered with the outer cylinder 1, so as to arrange each sensor 22 in the direction X, Y, Z respectively.

Fig. 4 is a schematic structural diagram of an assembly fork according to an embodiment of the present disclosure, and in this embodiment, in order to enable the cylinder 211 to be centered with the outer cylinder 1 as soon as possible, the measuring device further includes two assembly forks 300, where the two assembly forks 300 are in one-to-one correspondence with the two positioning planes 2110, with reference to fig. 4. The mounting fork 300 has a guide surface that engages the positioning flats 2110 and is parallel to the plane in which the positioning flats 2110 reside. The first portion of the mounting fork 300 is located inside the outer tub 1 and the second portion of the mounting fork 300 is located outside the outer tub 1.

In the above-described implementation, the cylinder 211 may be aligned and centered in the outer cylinder 1 by the guide surface of the fitting fork 300 being engaged with the positioning flat surface 2110 of the cylinder 211 when the cylinder 211 is inserted into the outer cylinder 1.

Illustratively, the mounting fork 300 has oppositely disposed first and second mounting bars 301, 302, the axes of the first and second mounting bars 301, 302 each being parallel to the axis of the barrel 211, there being a gap between the first and second mounting bars 301, 302, the first and second mounting bars 301, 302 being connected. The side of the first mounting bar 301 remote from the second mounting bar 302 forms a guide surface. When assembled, the first assembling rod 301 is positioned in the outer cylinder 1, and the second assembling rod 302 is positioned outside the outer cylinder 1

In the above-described implementation, the mounting fork 300 can be simply positioned on the outer cylinder 1 by the first mounting bar 301 and the second mounting bar 302, and at the same time, a guide surface can be provided for the cylinder 211, so that the cylinder 211 can be quickly positioned in the outer cylinder 1.

In addition, in order to enable one side surface of the first fitting rod 301 facing the second fitting rod 302 to be closely attached to the inner wall of the outer cylinder 1, one side surface of the first fitting rod 301 facing the second fitting rod 302 is an arc surface, the arc surface and the guide surface are located on opposite sides of the second fitting rod 302, and the radius of the arc surface corresponding to the inner arc of the cast iron inner layer 122 of the outer cylinder 1 is the same. This allows the mounting fork 300 to be stably and firmly inserted between the signal shielding cylinder 12 and the housing 21.

After the fitting fork 300 has fitted the housing 21 into the outer cylinder 1, the housing 21 is likewise connected in the outer cylinder 1 by means of potting technology.

The following briefly describes the working manner of the measuring device provided in the embodiments of the present disclosure:

first, the outer tube 1 is formed by connecting the high-hardness aluminum intermediate layer 121 with the steel protection tube 11, and then mounting the cast iron inner layer 122 of the spheroidal graphite.

Next, the fitting fork 300 is mounted on the outer tub 1 such that the first fitting lever 301 is located inside the outer tub 1 and the second fitting lever 302 is located outside the outer tub 1.

Then, the cylinder 211 provided with the processor 23, the sensor 22 and other devices is installed in the outer cylinder 1, when the cylinder 211 is installed, the positioning plane 2110 of the cylinder 211 is matched with the guide surface of the assembly fork 300, the cylinder 211 is quickly centered in the outer cylinder 1, after the installation is finished, the assembly fork 300 is removed, and the cylinder 211 and the outer cylinder 1 are connected together through a potting technology.

Finally, two end plates 2112 of the cylinder 211 are installed, and the measuring device is mounted on a moving object to detect the moving object.

The foregoing is merely an alternative embodiment of the present disclosure, and is not intended to limit the present disclosure, any modification, equivalent replacement, improvement, etc. that comes within the spirit and principles of the present disclosure are included in the scope of the present disclosure.

Claims

1. The measuring device for the inertia force is characterized by comprising an outer cylinder (1) and a sensor assembly (2), wherein the outer cylinder (1) comprises a protection cylinder (11) and a signal shielding cylinder (12), the protection cylinder (11) is sleeved outside the signal shielding cylinder (12), the protection cylinder (11) is connected with the signal shielding cylinder (12), a closed installation cavity (10) is formed in the signal shielding cylinder (12), and the sensor assembly (2) is located in the installation cavity (10) and is connected with the signal shielding cylinder (12).

2. The measuring device according to claim 1, characterized in that the signal shielding cylinder (12) comprises an aluminum intermediate layer (121) and a cast iron inner layer (122), the aluminum intermediate layer (121) is sleeved outside the cast iron inner layer (122) and is connected with the cast iron inner layer (122), and the aluminum intermediate layer (121) is located inside the protection cylinder (11) and is connected with the protection cylinder (11).

3. The measuring device according to claim 2, characterized in that the aluminium intermediate layer (121) is screwed with the protection cylinder (11), the cast iron inner layer (122) being interference fitted in the aluminium intermediate layer (121).

4. The measurement device according to claim 2, characterized in that the sensor assembly (2) comprises a housing (21) and a plurality of sensors (22);

The inside of the shell (21) is provided with a closed first cavity (201), the plurality of sensors (22) are encapsulated in the first cavity (201) and are bonded with the shell (21), and the shell (21) is positioned in the cast iron inner layer (122) and is connected with the cast iron inner layer (122).

5. The measuring device according to claim 4, characterized in that the interior of the housing (21) further has a second cavity (202), the second cavity (202) being arranged with the first cavity (201) along the axial direction of the outer cylinder (1);

The sensor assembly (2) further comprises a processor (23), the processor (23) is encapsulated in the second cavity (202) and is adhered to the shell (21), and the processor (23) is electrically connected with the sensor (22).

6. The measuring device according to claim 5, characterized in that the interior of the housing (21) further has a third cavity (203), the second cavity (202) and the first cavity (201) being arranged in sequence along the axial direction of the outer cylinder (1);

The sensor assembly (2) further comprises a battery (24), wherein the battery (24) is encapsulated in the third cavity (203) and is adhered to the shell (21), and the battery (24) is electrically connected with the processor (23) and the sensor (22) respectively.

7. The measurement device according to claim 6, wherein the housing (21) comprises a cylinder (211), a spacer (213) and a support ring (214);

Along the axial direction of the cylinder body (211), the baffle plate (213) and the support ring (214) are sequentially positioned inside the cylinder body (211), and the baffle plate (213) and the support ring (214) are respectively connected with the inner wall of the cylinder body (211);

The second cavity (202) is located between the partition plate (213) and the support ring (214), the first cavity (201) and the second cavity (202) are located on opposite sides of the partition plate (213), and the second cavity (202) and the third cavity (203) are located on opposite sides of the support ring (214).

8. The measuring device according to claim 7, characterized in that the outer wall of the cylinder (211) has two oppositely arranged positioning planes (2110) and two cambered surfaces (2115) connected between the two positioning planes (2110), the two cambered surfaces (2115) being located on the same circumference, the plane in which the positioning planes (2110) are located being parallel to the axis of the cylinder (211), the two positioning planes (2110) being located on both sides of the axis of the cylinder (211) and being located within the circumference, respectively.

9. A measuring device according to any one of claims 1-8, characterized in that the outer wall of the protective cylinder (11) has at least one support plane (110), which support plane (110) is parallel to the axis of the protective cylinder (11).

10. A measuring device according to any one of claims 1-8, characterized in that the protective cylinder (11) is a steel structure.