A static torque detection system for marine gear devices

Abstract

The present invention discloses a static torque detection system for a marine gear device, including a support seat, a connector, a torque meter, a fixed bracket, a force measuring arm and a force sensor, wherein the support seat is used to fix the gear device to be tested, one end of the connector is connected to the output end of the gear device to be tested, the other end of the connector is connected to the fixed bracket, the torque meter is arranged at the other end of the connector, the force measuring arm is arranged at the input end of the gear device to be tested, and the force sensor is arranged on the force measuring arm. The detection system provided by the present invention adopts a force measuring arm to replace a motor or a diesel engine for input end load, which can effectively save costs and shorten construction period; adopts a method of fixing the output end to replace a motor or a dynamometer to realize static coupling loading of the output end; the gear device to be tested can be accurately loaded, and the stability of the gear device to be tested under full power conditions can be effectively verified.

Description

Technical Field

[0001] The invention relates to the technical field of torque testing, and in particular to a static torque detection system for a marine gear device. Background Art

[0002] The ship propulsion system provides power support for the ship. The reduction gear device is one of the key equipment in the power system of ships and ships. The propeller obtains a reasonable speed through it to improve the propulsion efficiency. Various combined power propulsion methods and the optimal layout of their propulsion devices also need to be realized through the reduction gear system. The reduction gear device is irreplaceable in the field of ship and ship power systems due to its wide transmission power range, high transmission efficiency, smooth movement, precise transmission ratio, long service life, compact structure and other characteristics.

[0003] The marine reduction gear device is a key device of the entire ship propulsion system. Once the gear device fails, the ship will lose power, which will bring huge risks of loss of life and economic property. Therefore, in order to ensure the safety and reliability of the gear device, the gear device must pass the type approval test and factory test at the manufacturer before it can leave the factory.

[0004] After decades of development, as the design and manufacturing technology of domestic gear device manufacturers continues to mature, gear device manufacturers have continuously developed a variety of new marine gear devices. The reliability of marine gear devices is generally verified on real ships and in conjunction with diesel engines on land. However, real ship verification is inconvenient and expensive, and is not suitable for factory verification of gear devices. Verification on land through motors or diesel engines can achieve reliability tests for gear devices, but the external force applied during the measurement process is unstable, resulting in inaccurate test data, which affects the reliability verification of gear devices.

[0005] Therefore, how to provide a reliability detection system for a marine gear device is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0006] The purpose of the present invention is to provide a static torque detection system for a marine gear device, which can perform reliability tests on the gear device by static loading. At the same time, the test data has high reliability and the static loading experiment has high stability.

[0007] In order to solve the above technical problems, the present invention provides a static torque detection system for a marine gear device, comprising a support seat, a connecting member, a torque meter, a fixed bracket, a force measuring arm and a force sensor, wherein the support seat is used to fix the gear device to be measured, one end of the connecting member is connected to the output end of the gear device to be measured, the other end of the connecting member is connected to the fixed bracket, and the torque meter is arranged at the other end of the connecting member, the force measuring arm is arranged at the input end of the gear device to be measured, and the force measuring sensor is arranged on the force measuring arm.

[0008] Preferably, it further comprises a pulley block and a connecting rope, one end of the force sensor is connected to the force measuring arm via the connecting rope, and the other end of the force sensor is connected to the pulley block via the connecting rope.

[0009] Preferably, it also includes an input flange arranged at the input end of the gear device to be measured and used for connection.

[0010] Preferably, it also includes an output flange arranged at the output end of the gear device to be measured and used for connection.

[0011] Preferably, the connecting member is a coupling.

[0012] Preferably, the base of the gear device to be measured is detachably connected to the support seat via anchor bolts.

[0013] Preferably, it also includes a coloring layer for marking the gear pair of the gear device under test.

[0014] The static torque detection system for a marine gear device provided by the present invention mainly includes a support seat, a connecting piece, a torque meter, a fixed bracket, a force measuring arm and a force sensor, wherein the support seat is used to fix the gear device to be tested, one end of the connecting piece is connected to the output end of the gear device to be tested, the other end of the connecting piece is connected to the fixed bracket, and the torque meter is arranged at the other end of the connecting piece, the force measuring arm is arranged at the input end of the gear device to be tested, and the force sensor is arranged on the force measuring arm. The static torque detection system for a marine gear device provided by the present invention adopts a force measuring arm to replace the motor or diesel engine in the traditional test method to load the input end of the gear device to be tested, which can effectively save costs and shorten the construction period; the output end is fixed to replace the motor or dynamometer in the traditional test method to realize the static coupling loading of the output end; the input end and the output end are provided with a force sensor and a torque meter, which can accurately load the gear device to be tested, and can also conveniently and effectively observe the input and output torque changes of the gear device to be tested during the loading process, so as to effectively verify the stability of the gear device to be tested under full power conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0016] Figure 1 A schematic diagram of the overall structure of a specific implementation method provided by the present invention;

[0017] Figure 2 for Figure 1 a top view of the structure shown;

[0018] Figure 3 for Figure 2 Middle A direction view;

[0019] Figure 4 for Figure 2 View from the middle B direction.

[0020] in, Figure 1-Figure 4 middle:

[0021] Support seat—1, gear device to be measured—2, connecting piece—3, torque meter—4, fixed bracket—5, force measuring arm—6, pulley block—7, force sensor—8, connecting rope—9, input flange—10, output flange—11. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 A schematic diagram of the overall structure of a specific implementation method provided by the present invention; Figure 2 for Figure 1 a top view of the structure shown; Figure 3 for Figure 2 Middle A direction view; Figure 4 for Figure 2 View from the middle B direction.

[0024] In a specific embodiment provided by the present invention, the static torque detection system of a marine gear device mainly includes a support base 1, a connecting member 3, a torque meter 4, a fixed bracket 5, a force measuring arm 6 and a force sensor 8, the support base 1 is used to fix the gear device 2 to be measured, one end of the connecting member 3 is connected to the output end of the gear device 2 to be measured, the other end of the connecting member 3 is connected to the fixed bracket 5, and the torque meter 4 is arranged at the other end of the connecting member 3, the force measuring arm 6 is arranged at the input end of the gear device 2 to be measured, and the force measuring sensor 8 is arranged on the force measuring arm 6.

[0025] Among them, the gear device 2 to be tested is fixed on the support seat 1; it should be noted that the gear device 2 to be tested and the support seat 1, and the support seat 1 and the ground are fastened and fixed by bolts to ensure the stability of the gear device 2 to be tested during the test; the connector 3 and the torque meter 4 are connected to the output end of the gear device 2 to be tested by bolts; the torque meter 4 is connected to the corresponding interface on the fixed bracket 5 by bolts, and the fixed bracket 5 is connected to the ground by bolts; the force measuring arm 6 is fastened and connected to the input end of the gear device 2 to be tested by bolts, and the force measuring sensor 8 is connected to the force measuring arm 6. It should be noted that the connector 3 is preferably a coupling, and can also be other devices that can implement the present invention, which is not specifically limited here.

[0026] Specifically, in the actual detection process, the support seat 1 is fixed to the existing ground by bolts, and then the gear device 2 to be tested is fixed to the support seat 1 by bolts. It should be noted that the tightening degree of the bolts must meet the vibration requirements of the gear device 2 to be tested during the test process. If it is found that the vibration of the gear device 2 to be tested is too large during the test process, the bolts need to be retightened; then, the connecting piece 3 and the torque meter 4 are connected to the output end of the gear device 2 to be tested by bolts. The connecting piece 3 is a connecting component between the gear device 2 to be tested and the torque meter 4, and it must be connected reliably. Then, the preset interface of the fixed bracket 5 is connected to the torque meter 4, and then the fixed bracket 5 is also fixed to the existing ground by bolts; finally, the force measuring arm 6 is fastened to the gear device 2 to be tested by bolts, and the other end of the force measuring arm 6 is connected to the force sensor 8.

[0027] After completing the above preparations, the gear device 2 under test can be tested, and a static force is applied to the gear device 2 under test through the force measuring arm 6. Since the force measuring arm 6 is connected to the force sensor 8, the load applied to the gear device 2 under test can be monitored and recorded throughout the process. Similarly, the parameters of the torque meter 4 can be monitored and recorded throughout the process. Compared with the method of applying loads by motors and diesel engines in the prior art, the force measuring arm 6 is used to replace the motor or diesel engine in the traditional test method to load the input end of the gear device 2 under test, which can effectively save costs and shorten the construction period; the output end is fixed to replace the motor or dynamometer in the traditional test method to achieve static coupling loading at the output end; the input and output ends are provided with force sensors 8 and torque meters 4, which can accurately load the gear device 2 under test, and can also conveniently and effectively observe the changes in input and output torques of the gear device 2 under test during the loading process, so as to effectively verify the stability of the gear device 2 under full power conditions. It should be noted that, according to actual conditions, the force sensor 8 can be replaced by adding a torque meter 4 at the input end to match the expected torque of the test and ensure the accuracy and efficiency of the detection.

[0028] In order to optimize the advantages of the static torque detection system for marine gear devices in the above embodiment that can more accurately measure the stability and reliability of the gear device 2 to be tested, the detection system also includes a pulley block 7 and a connecting rope 9. One end of the force sensor 8 is connected to the force arm 6 through the connecting rope 9, and the other end of the force sensor 8 is connected to the pulley block 7 through the connecting rope 9. According to the test working conditions of the gear device 2 to be tested, it is preferred that the connecting rope 9 is fixed just above or just below the loading point of the force arm 6, so that the initial state of the connecting rope 9 is in a vertical state with the force arm 6; those skilled in the art can infer the magnitude of the external force to be applied through the relationship between the torque value and the applied external force, and then load the force through the connecting rope 9. When the connecting rope is subjected to external tension, the connecting rope 9 bypasses the pulley block 7, and the force arm 6 is loaded with an external force. At the same time, the force sensor 8 displays the magnitude of the applied external force in real time. After loading to the required force, it is kept for a certain period of time and then unloaded. During this period, the output of the torque meter 4 at the output end is observed and recorded, and the whole process can be detected in real time to provide data for calculation after detection. The connection through the pulley block 7 and the connecting rope 9 makes the force measuring arm 6 more specific when applying external force, and can grasp the specific value that needs to be applied external force and compare it with the torque value at the output end, so that the test data is more accurate, and further ensures the stability and reliability of the gear device 2 after being tested.

[0029] Furthermore, the detection system also includes an input flange 10 provided at the input end of the gear device 2 under test for connection and an output flange 11 provided at the output end of the gear device 2 under test for connection. By fixing the torque meter 4 and the force measuring arm 6 through the input flange 10 and the output flange 11, the stability of the gear device 2 under test during the test process can be further improved, providing a more stable detection environment for the test data, making the test data more accurate, and ensuring the stability and reliability of the gear device 2 under test after being tested.

[0030] Furthermore, the base of the gear device 2 under test is detachably connected to the support seat 1 through anchor bolts. The gear device 2 under test is detachably connected to the support seat 1. During the test, the gear device 2 under test and the support seat 1 can be fastened and installed by bolts. After the test is completed, the bolts can be removed, which ensures the convenience of the new test.

[0031] Furthermore, the detection system also includes a coloring layer for identifying the gear pair of the tested gear device 2. The coloring layer of the gear pair further verifies the test result in terms of mechanics, and can be compared with the test data of the torque meter 4 or the force sensor 8 in terms of torque to check and ensure the reliability of the tested gear device 2.

[0032] In summary, the static torque detection system for a marine gear device provided in this embodiment mainly includes a support seat, a connecting piece, a torque meter, a fixed bracket, a force measuring arm and a force sensor, the support seat is used to fix the gear device to be tested, one end of the connecting piece is connected to the output end of the gear device to be tested, the other end of the connecting piece is connected to the fixed bracket, and the torque meter is arranged at the other end of the connecting piece, the force measuring arm is arranged at the input end of the gear device to be tested, and the force sensor is arranged on the force measuring arm. The static torque detection system for a marine gear device provided by the present invention adopts a force measuring arm to replace the motor or diesel engine in the traditional test method to load the input end of the gear device to be tested, which can effectively save costs and shorten the construction period; the output end is fixed to replace the motor or dynamometer in the traditional test method to realize the static coupling loading of the output end; the input end and the output end are provided with a force sensor and a torque meter, which can accurately load the gear device to be tested, and can also conveniently and effectively observe the input and output torque changes of the gear device to be tested during the loading process, so as to effectively verify the stability of the gear device to be tested under full power conditions.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A static torque detection system for a marine gear device, characterized in that: The invention comprises a support base (1), a connecting member (3), a torque meter (4), a fixed bracket (5), a force measuring arm (6) and a force measuring sensor (8), wherein the support base (1) is used to fix a gear device (2) to be measured, one end of the connecting member (3) is connected to the output end of the gear device (2) to be measured, the other end of the connecting member (3) is connected to the fixed bracket (5), the torque meter (4) is arranged at the other end of the connecting member (3), the force measuring arm (6) is arranged at the input end of the gear device (2) to be measured, and the force measuring sensor (8) is arranged on the force measuring arm (6); It also comprises a pulley block (7) and a connecting rope (9), one end of the force sensor (8) is connected to the force measuring arm (6) via the connecting rope (9), and the other end of the force sensor (8) is connected to the pulley block (7) via the connecting rope (9); The connecting rope (9) is fixed just above or just below the loading point of the force measuring arm (6), so that the initial state of the connecting rope (9) is in a vertical state with the force measuring arm (6).

2. The static torque detection system for a marine gear device according to claim 1, characterized in that: It also includes an input flange (10) arranged at the input end of the gear device (2) to be tested and used for connection.

3. The static torque detection system for a marine gear device according to claim 2, characterized in that: It also includes an output flange (11) arranged at the output end of the gear device (2) to be tested and used for connection.

4. The static torque detection system for marine gear device according to claim 3, characterized in that: The connecting piece (3) is a coupling.

5. The static torque detection system for a marine gear device according to claim 4, characterized in that: The base of the gear device (2) to be tested is detachably connected to the support seat (1) via anchor bolts.

6. The static torque detection system for a marine gear device according to any one of claims 1 to 5, characterized in that: It also includes a coloring layer for marking the gear pair of the gear device (2) being tested.

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