CN220948465U

CN220948465U - Ship multichannel vibration data acquisition system and storage box thereof

Info

Publication number: CN220948465U
Application number: CN202322107857.0U
Authority: CN
Inventors: 任凤华; 郭宁馨; 韩宇; 吴善跃; 王嘉志; 陈昕; 王亮
Original assignee: Pla 92957 Unit
Current assignee: Pla 92957 Unit
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-05-14
Anticipated expiration: 2033-08-07

Abstract

The utility model belongs to the field of ships, and particularly relates to a ship multichannel vibration data acquisition system and a storage box thereof. A No. 1 acquisition instrument 1 and a No. 2 acquisition instrument 2 are arranged in the storage box, and a plurality of sensor wires 7 are respectively arranged on the two acquisition instruments and used for acquiring vibration data of different positions of the ship; the two collection instruments are connected in series through an intermediate network cable, the No. 1 collection instrument 1 is provided with an input network cable 9, the No. 2 collection instrument 2 is provided with an output network cable 10, two adjacent storage boxes are connected in series through the first position of the input network cable 10 and the first position of the output network cable 10, and the storage boxes positioned at the head are connected with a switch through the input network cable 9.

Description

Ship multichannel vibration data acquisition system and storage box thereof

Technical Field

The utility model belongs to the field of ships, and particularly relates to a ship multichannel vibration data acquisition system and a storage box thereof.

Background

At present, aiming at the field of ships, a main power system carries out multichannel vibration data acquisition work, and the early-stage distribution preparation stage mainly faces the following problems:

1. Relates to a plurality of devices, which are large in quantity and inconvenient to carry. The multi-channel data acquisition work of the ship environment main power system is developed, and the multi-channel data acquisition work relates to various materials 122 (pieces) such as an acquisition instrument, an exchanger, a centralized control computer, a sensor, a communication line, a bag, a box and the like, the boarding gangway ladder is narrow, people need to carry in batches, and meanwhile, equipment materials are inconvenient to count and return to a warehouse.

2. The labor consumption is high and the time consumption is long. In the processes of carrying, cloth, connecting and removing, the procedures are complicated, the sensor lines are time-consuming and labor-consuming, taking 636A type ship main power multichannel vibration acquisition as an example, 64 measuring points are required to be arranged, the accumulated time of 4 people to develop the point distribution work is between 1.5 hours and 2 hours, the time of removing and collecting 2 people is about half an hour, and compared with the discrete measuring means (2.5 hours) of a conventional portable instrument, the sensor lines have no efficiency advantage.

3. The connection relationship is complex. The connection correspondence between the device-measuring point-direction-sensor line number-collector interface ID-software test number is determined and recorded on site by adopting a first connection and then recording form.

4. Under the condition of difficult field management and ship navigation, crew and workers exist in the cabin field environment, and the phenomenon of treading and winding on the arranged line can be inevitably caused in the flowing (equipment inspection, maintenance and operation) process of the crew, so that the accuracy of data acquisition is affected, and the safety risks of equipment and personnel exist.

Disclosure of utility model

The utility model aims to provide a ship multichannel vibration data acquisition system and a storage box thereof, so as to solve the defects in the prior art.

In order to achieve the aim of the utility model, the utility model adopts the following technical scheme:

The ship multichannel vibration data acquisition system comprises a centralized control computer, a switch and a storage box;

The plurality of storage boxes are arranged, and the centralized control computer, the switch and the plurality of storage boxes are sequentially connected to form a serial structure;

A No. 1 acquisition instrument 1 and a No. 2 acquisition instrument 2 are arranged in the storage box, and a plurality of sensor wires 7 are respectively arranged on the two acquisition instruments and used for acquiring vibration data of different positions of the ship; two collection appearance establish ties through the intermediate network line, no. 1 collection appearance 1 sets up input net twine 9, no. 2 collection appearance 2 sets up output net twine 10, connects the formation in series through input, output net twine 10 first between two adjacent containing boxes, and the containing box that is located the head passes through input net twine 9 and connects the switch.

Further, the containing boxes are provided with four containing boxes, namely containing boxes 1, 2, 3 and 4, and the two collecting instruments are provided with three sensor wires 7 respectively.

Further, three sensor wires 7 on one of the collectors of the No. 1 storage box are respectively connected with a left front foot HVA, a left middle foot HV and a left rear foot HVA on the left thrust diesel engine; three sensor wires 7 on the other acquisition instrument are respectively connected with a right front foot HVA, a right middle foot HV and a right rear foot HVA on the left thrust diesel engine.

Further, three sensor wires 7 on one of the collectors of the No. 2 storage box are respectively connected with a left front foot HVA, a left middle foot HV and a left rear foot HVA on the right thrust diesel engine; three sensor wires 7 on the other acquisition instrument are respectively connected with a right front foot HVA, a right middle foot HV and a right rear foot HVA on the right thrust diesel engine.

Further, three sensor wires 7 on one of the collectors of the No. 3 storage box are respectively connected with an axle center HVA on the left middle bracket, an input end HVA of the left gear box and an output end HV of the left gear box; three sensor wires 7 on the other acquisition instrument are respectively connected with the axle center HVA on the right middle support, the input end HVA of the right gear box and the output end HV of the right gear box.

Further, three sensor wires 7 on one of the collecting instruments of the No. 4 collecting box are respectively connected with the axle center HVA of the No. 1 fulcrum bearing, the axle center HA of the No. 2 fulcrum bearing and the axle center HVA of the No. 3 fulcrum bearing; three sensor wires 7 on the other acquisition instrument are respectively connected with the axle center HVA of the right No. 1 fulcrum bearing, the axle center HA of the right No. 2 fulcrum bearing and the axle center HVA of the right No. 3 fulcrum bearing.

The storage box comprises a box body 3, wherein a No. 1 acquisition instrument 1 and a No. 2 acquisition instrument 2 are arranged in the box body 3, an input network cable 9 and a plurality of sensor wires 7 are arranged on the No. 1 acquisition instrument 1, an output network cable 10 and a plurality of sensor wires 7 are arranged on the No. 2 acquisition instrument 2, the No. 1 acquisition instrument 1 and the No. 2 acquisition instrument 2 are connected in series through an intermediate network cable, and the sensor wires 7 are used for acquiring vibration data;

The input network cable 9, the output network cable 10 and the plurality of sensor wires 7 are respectively provided with a winding device 6, and the input network cable 9, the output network cable 10 and the sensor wires 7 penetrate out of the box body 3 from the winding device 6.

Further, a locking mechanism 8 is disposed at the position where the input network cable 9, the output network cable 10 and the plurality of sensor wires 7 pass through the box 3, and is used for locking the input network cable 9, the output network cable 10 and the wire bodies of the sensor wires 7.

Further, the locking mechanism 8 comprises a sleeve 801, a limiting block 802 and an elastic sleeve 804, wherein a through hole is formed in the position, where the wire body passes through the box body 3, of the sleeve 801, the sleeve 801 is arranged in the through hole, the sleeve 801 is internally and fixedly connected with the limiting block 802, a limiting hole is formed in the limiting block 802, the elastic sleeve 804 is inserted into the sleeve 801 and passes through the limiting hole, a protruding portion 805 is arranged at one end, penetrating through the limiting hole, of the elastic sleeve 804, the elastic sleeve 804 is in clearance distribution with the sleeve 801, and the outer diameter of the elastic sleeve 804 is matched with the limiting hole; the elastic sleeve 804 is sleeved on the wire body, and when the elastic sleeve 804 is slid to enable the protruding portion 805 to be inserted into the limiting hole, the elastic sleeve 804 presses the wire body, so that a locking effect is formed.

Further, the device further comprises a plug block 803, the plug block 803 is slidably inserted into the sleeve 801 and is located at the outer end of the sleeve 801, the plug block 803 is provided with a fixing hole, the elastic sleeve 804 passes through the fixing hole, and the plug block 803 is fixedly connected with the elastic sleeve 804.

The utility model has the following beneficial effects:

(1) And the integrated thought is utilized, so that the overall portability and maneuverability of the equipment are improved. The hardware resources of the multichannel data acquisition system are integrated, so that the total amount of equipment to be carried is reduced, the energy and time required for checking and returning equipment materials are reduced, personnel can conveniently carry and carry, and the overall transportation pressure of the system is reduced;

(2) And the on-site management pressure is reduced through the wire coiling device, and the work efficiency of point distribution is improved. The sensor circuit is guaranteed to have only two processes of pulling and collecting when the sensor circuit is distributed, and the recovery process is automated, so that the manpower distribution cost is greatly reduced, the distribution work time is shortened, the site distribution order is optimized, the condition that the circuit is entangled with each other and is paved on the ground is avoided, the risk of stepping and mixing the circuit is reduced, and the whole distribution work can be folded and unfolded rapidly.

(3) And curing the connection relation, and omitting the procedures of on-site line connection, recording and withdrawing. According to the technical scheme of site measurement, special personnel are required to take charge, command and record, and through curing the internal connection relation among all parts, the normal connection state of the system is maintained, the procedures of connection, record connection and disconnection among the internal parts can be omitted, and the site only needs to execute the arrangement work from an external sensor to a measuring point according to the technical scheme of measurement, so that the efficiency of site distribution work development is improved, the manpower consumption is reduced, and the procedures are simplified.

Drawings

FIG. 1 is a schematic diagram of the connection relationship of the acquisition system of the present utility model;

FIG. 2 is a schematic view of the structure of the storage box of the present utility model;

FIG. 3 is a three-dimensional schematic view of a storage box;

FIG. 4 is an internal schematic view of the storage box;

Fig. 5 is an enlarged schematic view at a in fig. 4.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 5 in the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. The technical means used in the examples are conventional means well known to those skilled in the art unless otherwise indicated.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, the ship multichannel vibration data acquisition system comprises a centralized control computer, a switch and a storage box; the plurality of storage boxes are arranged, and the centralized control computer, the switch and the plurality of storage boxes are sequentially connected to form a serial structure; a No. 1 acquisition instrument 1 and a No. 2 acquisition instrument 2 are arranged in the storage box, and a plurality of sensor wires 7 are respectively arranged on the two acquisition instruments and used for acquiring vibration data of different positions of the ship; two collection appearance establish ties through the intermediate network line, no. 1 collection appearance 1 sets up input net twine 9, no. 2 collection appearance 2 sets up output net twine 10, connects through input, output net twine 10 (9) first between two adjacent containing boxes and forms the series connection, and No. 1 containing box that is located the head passes through output net twine 10 and connects the switch. Wherein the centralized control computer and the exchanger are in the prior art. The storage box at the head is the first storage box on the serial route, and the No. 1 acquisition instrument 1 in the storage box is connected with the switch through the input network cable 9; the storage box at the tail part is positioned at the tail part on the serial route, and the No. 2 acquisition instrument 2 inside the storage box is connected with the switch through the output network cable 10.

Specifically, three sensor wires 7 on one of the collectors of the No. 1 storage box are respectively connected with a left front foot HVA, a left middle foot HV and a left rear foot HVA on the left thrust diesel engine; three sensor wires 7 on the other acquisition instrument are respectively connected with a right front foot HVA, a right middle foot HV and a right rear foot HVA on the left thrust diesel engine.

Specifically, three sensor wires 7 on one of the collectors of the No. 2 storage box are respectively connected with a left front foot HVA, a left middle foot HV and a left rear foot HVA on the right thrust diesel engine; three sensor wires 7 on the other acquisition instrument are respectively connected with a right front foot HVA, a right middle foot HV and a right rear foot HVA on the right thrust diesel engine.

Specifically, three sensor wires 7 on one of the collectors of the No. 3 storage box are respectively connected with an axle center HVA on the left middle bracket, an input end HVA of the left gear box and an output end HV of the left gear box; three sensor wires 7 on the other acquisition instrument are respectively connected with the axle center HVA on the right middle support, the input end HVA of the right gear box and the output end HV of the right gear box.

Specifically, three sensor wires 7 on one of the collectors of the No. 4 storage box are respectively connected with the axle center HVA of the No. 1 fulcrum bearing, the axle center HA of the No. 2 fulcrum bearing and the axle center HVA of the No. 3 fulcrum bearing; three sensor wires 7 on the other acquisition instrument are respectively connected with the axle center HVA of the right No. 1 fulcrum bearing, the axle center HA of the right No. 2 fulcrum bearing and the axle center HVA of the right No. 3 fulcrum bearing.

In the utility model, the left thrust diesel engine and the right thrust diesel engine are cruise diesel engines for providing power for ship navigation, the left front foot HVA, the left middle foot HV and the left rear foot HVA refer to specific positions of vibration sensors arranged on a measured object (the thrust diesel engine), HVA represents three vibration directions (H represents a horizontal direction, V represents a vertical direction, A represents an axial direction) required to be measured at corresponding positions, the axle center HVA on the left middle bracket and the right middle bracket refer to vibration measuring directions (H, horizontal directions) parallel to the ground and penetrating through the axial line of the rotating shaft of the thrust diesel engine on the middle bracket, vibration measuring directions (V, vertical directions) perpendicular to the ground and penetrating through the axial line of the rotating shaft of the thrust diesel engine, vibration measuring directions (A, axial directions) parallel to the axial line of the rotating shaft of the thrust diesel engine, the input end HVA and the output end HVA of a reduction gearbox refer to vibration measuring directions (H: horizontal, V: vertical, A: axial direction), the axle center HVA on the left (right) number 1, 2, 3 fulcrum bearings refer to fulcrum bearings on the tail shafts of ships, the tail shafts, the vibration measuring directions (H: horizontal, V: vertical, A: axial directions) parallel to the tail shafts and the axial directions penetrating through the tail shafts and the axial directions (vertical directions) perpendicular to the axial directions) of the tail shafts.

Referring to fig. 1, the working principle of the acquisition system of the present utility model when acquiring ship vibration data is: entering a main power cabin of a ship, placing four storage boxes in corresponding positions in the cabin strictly according to the diagram 1, opening a collection instrument placed in the cabinet, exposing vibration sensor heads at two ends of the cabinet, sequentially arranging sensors on actually equipped measuring points according to a predetermined connection relation of 'sensor-measuring points' (using magnetic sensors, arranging quickly), connecting network cables according to the diagram 1 after all the sensors are arranged, opening a centralized control computer, installing multichannel vibration data collection system regulation software in the centralized control computer, setting related parameters and requirements through the software, clicking 'start measurement', synchronously collecting vibration data of each sensor by the system, and finally displaying and storing the vibration data on the computer through 'sensor-collection instrument-switch'. After the sensor wire is lightly pulled, the external net wire and the lightly pulled net wire of the storage box are disconnected, and the corresponding wire automatically rebounds. And finally, folding the storage box and arranging the storage box on site.

In the present utility model, the purpose of the sensor wire 7 is to connect one end to the acquisition instrument and the other end to the vibration sensor arranged on each of the above-mentioned components.

The acquisition system of the utility model utilizes an integration thought to improve the overall portability and mobility of the equipment. The hardware resources of the multichannel data acquisition system are integrated, so that the total amount of equipment to be carried is reduced, the energy and time required for checking and returning equipment materials are reduced, personnel can conveniently carry and carry, and the overall transportation pressure of the system is reduced. The types and the numbers of the materials of the equipment and the portable equipment which are needed to be prepared before and after the storage box are compared as follows:

Table 1 comparison of equipment materials before and after use of storage box

As shown in fig. 2-4, a storage box comprises a box body 3, wherein a No. 1 acquisition instrument 1 and a No. 2 acquisition instrument 2 are arranged in the box body 3, an input network line 9 and a plurality of sensor lines 7 are arranged on the No. 1 acquisition instrument 1, an output network line 10 and a plurality of sensor lines 7 are arranged on the No. 2 acquisition instrument 2, the No. 1 acquisition instrument 1 and the No. 2 acquisition instrument 2 are connected in series through an intermediate network line, and the sensor lines 7 are used for acquiring vibration data; the input network cable 9, the output network cable 10 and the plurality of sensor wires 7 are respectively provided with a winding device 6, and the input network cable 9, the output network cable 10 and the sensor wires 7 penetrate out of the box body 3 from the winding device 6.

Wherein the coiling device 6 and the acquisition instrument are in the prior art, the coiling device 6 is an automatic coiling device with a spiral spring, and the wire bodies of the wires (the input net wire 9, the output net wire 10 and the sensor wire 7) are wound on the wheel body of the coiling device 6.

The above-mentioned intermediate network cable, input network cable 9 and output network cable 10 function to implement a communication connection to exchange data.

The storage box integrally comprises the following modules:

And the acquisition module is used for: be used for regularly placing Beijing eastern coinv type multifunctional collector (No. 1 collector 1 and No. 2 collector 2), eight passageway interface face upwards, instrument on-off key position reservation certain space.

Line normalization module: in the case of three-axis sensors, three reels are required for 3 sensor lines to be connected to each eight interfaces (one acquisition instrument). The size of the winder is moderate, the winding length is 5-10 meters, and the circuit can be automatically scaled.

And a communication module: and the two acquisition instruments in the same box are connected in series through an intermediate network cable, and the input network cable and the output network cable are connected with a communication module of an adjacent storage box or a switch.

And a power supply module: in the sailing process of the ship, main power vibration conditions under various rotating speed working conditions need to be measured, each working condition needs to be changed into the next working condition after lasting for a fixed time (half hour to 2 hours are different) in the sailing test, the storage box is required to have a long-time standby function (more than 5 hours), meanwhile, the position of a power interface in the engine room is fixed, and the power of a used (especially far-end) acquisition instrument cannot be ensured, so that a built-in power module is required in the storage box, and the power is supplied for the acquisition instrument in the storage box for a long time.

The storage box is introduced into the line regulation module, and the corresponding sensor lines 7 and network lines are recovered and stretched out through the wire coiling device 6, so that the site management pressure is reduced, and the work efficiency of point distribution is improved. The multi-channel vibration data of the ship main power system work, in the early point distribution stage, main time and effort are spent on the disassembly, the pulling, the winding, the arranging and the collection of the sensor lines, the measuring points are more, the time consumption is long, the process is complex, the labor consumption is large, the sensor lines are ensured to be pulled and collected only in the point distribution process by introducing the line regulation module, the automation of the point distribution process is realized, the manpower point distribution cost is greatly reduced, the point distribution work is shortened, the site point distribution order is optimized, the occurrence of the conditions that the lines are entangled with each other and spread on the ground is avoided, the risk of stepping by personnel and the risk of winding the lines is reduced, and the whole point distribution work can be folded and unfolded rapidly.

The time spent in each stage of the distribution work is compared with the time spent in the whole stage before and after the storage box is used as follows:

Table 2 comparison of vibration measurement before and after use of storage box

Referring to fig. 4 to 5, a locking mechanism 8 is provided at a position where the input net wire 9, the output net wire 10 and the plurality of sensor wires 7 pass through the case 3, for locking the input net wire 9, the output net wire 10 and the wire bodies of the sensor wires 7.

Specifically, the locking mechanism 8 comprises a sleeve 801, a limiting block 802 and an elastic sleeve 804, wherein a through hole is formed in the position, where the wire body passes through the box body 3, of the sleeve 801, the sleeve 801 is arranged in the through hole, the sleeve 801 is internally and fixedly connected with the limiting block 802, a limiting hole is formed in the limiting block 802, the elastic sleeve 804 is inserted into the sleeve 801 and passes through the limiting hole, a protruding portion 805 is arranged at one end, where the elastic sleeve 804 passes through the limiting hole, of the elastic sleeve 804, the elastic sleeve 804 is in clearance distribution with the sleeve 801, and the outer diameter of the elastic sleeve 804 is matched with the limiting hole; the elastic sleeve 804 is sleeved on the wire body, and when the elastic sleeve 804 is slid to enable the protruding portion 805 to be inserted into the limiting hole, the elastic sleeve 804 presses the wire body, so that a locking effect is formed.

The socket further comprises a plug block 803, the plug block 803 is slidably inserted into the sleeve 801 and located at the outer end of the sleeve 801, the plug block 803 is provided with a fixing hole, the elastic sleeve 804 passes through the fixing hole, the plug block 803 is fixedly connected with the elastic sleeve 804, and the sleeve 801 and the through hole can be in threaded connection.

In particular, when the inserting block 803 is pulled outwards, the elastic sleeve 804 moves outwards, the protruding portion 805 is inserted into the limiting hole, and the elastic sleeve 804 is compressed to generate extrusion force on the wire body due to the fact that the aperture of the limiting hole is smaller than the outer diameter of the elastic sleeve 804, so that the wire body is locked. During unlocking, the plugging block 803 is drawn inwards, so that the protruding portion 805 is separated from the limiting hole, and the plugging block 803 also has the functions of sealing and waterproofing. Through the design of lock mechanism 8, realized the function of being convenient for lock, unblock, and can realize sealed waterproof effect.

In addition, the protruding portion 805 may be annular, two ends of the protruding portion may be wedge-shaped, one end of the limiting block 802, which is close to the protruding portion 805, may be wedge-shaped, so that an end surface of the limiting hole may be tapered, so that the protruding portion 805 may be pressed and deformed, and the elastic sleeve 804 may be made of rubber.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications, variations, alterations, substitutions made by those skilled in the art to the technical solution of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the spirit of the design of the present utility model.

Claims

1. Ship multichannel vibration data acquisition system is characterized in that: the system comprises a centralized control computer, a switch and a storage box;

A No. 1 acquisition instrument (1) and a No. 2 acquisition instrument (2) are arranged in the storage box, and a plurality of sensor wires (7) are respectively arranged on the two acquisition instruments and used for acquiring vibration data of different positions of the ship; two collection appearance establish ties through the intermediate network line, no. 1 collection appearance (1) sets up input net twine (9), no. 2 collection appearance (2) set up output net twine (10), form the series connection through input, output net twine (10) first connection between two adjacent containing boxes, and the containing box that is located the head passes through input net twine (9) connection switch.

2. The marine multi-channel vibration data acquisition system of claim 1, wherein: the containing boxes are four, namely No. 1, no. 2, no. 3 and No. 4 containing boxes, and the two acquisition instruments are respectively provided with three sensor wires (7).

3. The marine multi-channel vibration data acquisition system of claim 2, wherein: three sensor wires (7) on one of the collecting instruments of the No. 1 collecting box are respectively connected with a left front foot HVA, a left middle foot HV and a left rear foot HVA on the left thrust diesel engine; three sensor wires (7) on the other acquisition instrument are respectively connected with a right front foot HVA, a right middle foot HV and a right rear foot HVA on the left thrust diesel engine.

4. The marine multi-channel vibration data acquisition system of claim 2, wherein: three sensor wires (7) on one acquisition instrument of the No. 2 storage box are respectively connected with a left front foot HVA, a left middle foot HV and a left rear foot HVA on a right thrust diesel engine; three sensor wires (7) on the other acquisition instrument are respectively connected with a right front foot HVA, a right middle foot HV and a right rear foot HVA on the right thrust diesel engine.

5. The marine multi-channel vibration data acquisition system of claim 2, wherein: three sensor wires (7) on one acquisition instrument of the No. 3 storage box are respectively connected with an axle center HVA on a left middle bracket, an input end HVA of a left gear box and an output end HV of the left gear box; three sensor wires (7) on the other acquisition instrument are respectively connected with the axle center HVA on the right middle bracket, the input end HVA of the right gear box and the output end HV of the right gear box.

6. The marine multi-channel vibration data acquisition system of claim 2, wherein: three sensor wires (7) on one collecting instrument of the No. 4 collecting box are respectively connected with the axle center HVA of the No. 1 fulcrum bearing, the axle center HA of the No. 2 fulcrum bearing and the axle center HVA of the No. 3 fulcrum bearing; three sensor wires (7) on the other acquisition instrument are respectively connected with the axle center HVA of the right No. 1 fulcrum bearing, the axle center HA of the right No. 2 fulcrum bearing and the axle center HVA of the right No. 3 fulcrum bearing.

7. A containing box, its characterized in that: the vibration data acquisition device comprises a box body (3), wherein a No. 1 acquisition instrument (1) and a No. 2 acquisition instrument (2) are arranged in the box body (3), an input network cable (9) and a plurality of sensor wires (7) are arranged on the No. 1 acquisition instrument (1), an output network cable (10) and a plurality of sensor wires (7) are arranged on the No. 2 acquisition instrument (2), the No. 1 acquisition instrument (1) and the No. 2 acquisition instrument (2) are connected in series through an intermediate network cable, and the sensor wires (7) are used for acquiring the vibration data;

The input network cable (9), the output network cable (10) and the plurality of sensor wires (7) are respectively provided with a winding device (6), and the input network cable (9), the output network cable (10) and the sensor wires (7) penetrate out of the box body (3) from the winding devices (6).

8. The storage box according to claim 7, wherein: the input network cable (9), the output network cable (10) and a plurality of sensor wires (7) penetrate through the box body (3), and a locking mechanism (8) is arranged at the position, used for locking the input network cable (9), the output network cable (10) and the wire bodies of the sensor wires (7).

9. The storage box according to claim 8, wherein: the locking mechanism (8) comprises a sleeve (801), a limiting block (802) and an elastic sleeve (804), wherein a through hole is formed in the position, where the wire body passes through the box body (3), of the sleeve (801), the sleeve (801) is arranged in the through hole, the limiting block (802) is fixedly connected in the sleeve (801), a limiting hole is formed in the limiting block (802), the elastic sleeve (804) is inserted in the sleeve (801) and passes through the limiting hole, a protruding portion (805) is formed in one end, penetrating through the limiting hole, of the elastic sleeve (804), the elastic sleeve (804) is in clearance distribution with the sleeve (801), and the outer diameter of the elastic sleeve (804) is matched with the limiting hole;

The elastic sleeve (804) is sleeved on the wire body, and when the elastic sleeve (804) is slid to enable the protruding portion (805) to be inserted into the limiting hole, the elastic sleeve (804) presses the wire body, so that a locking effect is formed.

10. The storage box according to claim 9, wherein: the novel socket further comprises a plug block (803), wherein the plug block (803) is slidably plugged in the sleeve (801) and is positioned at the outer end of the sleeve (801), the plug block (803) is provided with a fixing hole, the elastic sleeve (804) penetrates through the fixing hole, and the plug block (803) is fixedly connected with the elastic sleeve (804).