A transmission fault detection structure

Abstract

The present invention provides a transmission fault detection structure, which relates to the field of mechanical fault detection technology and includes: a housing having an accommodating space formed therein; an input shaft, an intermediate shaft, and an output shaft sequentially mounted within the housing, wherein the input shaft is provided with an input gear and at least one first gear to be detected, the intermediate shaft is provided with a first sliding gear and a second sliding gear, and the output shaft is provided with an output gear and at least one second gear to be detected; and a transmission assembly, wherein the transmission assembly is connected to the first sliding gear and the second sliding gear, respectively; wherein the transmission assembly drives the first sliding gear and the second sliding gear to move on the intermediate shaft, causing the first sliding gear to mesh with the input gear or the first gear to be detected, and causing the second sliding gear to mesh with the output gear or the second gear to be detected. This structure solves the problem that existing transmission test benches have relatively limited data types and are not convenient to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical fault detection, and in particular to a transmission fault detection structure. Background Art

[0002] Gears and bearings are the most critical parts in rotating mechanical systems. If a failure occurs, it will usually have a devastating impact on the entire mechanical equipment, causing huge economic losses and even casualties. Therefore, it is particularly important to quickly identify and effectively diagnose gear and bearing faults.

[0003] In recent years, with the rapid development of artificial intelligence (AI), the integration of machine learning, particularly deep learning, and mechanical fault diagnosis has transformed diagnostics, which traditionally relied on manual experience, and improved both efficiency and accuracy. For deep learning, fundamental data determines the effectiveness of model training, and the success of deep learning models relies on comprehensive and rich datasets. Common datasets come from test benches and field data. Test bench data is a valuable source of data for deep learning because it can handle controlled fault types and has low signal noise.

[0004] However, existing test benches often use manual replacement of faulty gears to control the type of fault detected. The operation is complicated and easily introduces additional interference. The type of data obtained is relatively simple, which is not conducive to the training of deep learning diagnostic models. Summary of the Invention

[0005] An embodiment of the present invention provides a transmission fault detection structure to solve the problem that the data type obtained by the existing transmission test bench is relatively single and the operation is not convenient enough.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] According to one aspect of the present invention, a transmission fault detection structure is provided, comprising:

[0008] A box body, wherein an accommodating space is formed inside the box body;

[0009] An input shaft, an intermediate shaft, and an output shaft are sequentially mounted inside the housing, wherein the input shaft is provided with an input gear and at least one first gear to be detected, the intermediate shaft is provided with a first sliding gear and a second sliding gear, and the output shaft is provided with an output gear and at least one second gear to be detected;

[0010] a transmission assembly, the transmission assembly being connected to the first sliding gear and the second sliding gear respectively;

[0011] The transmission assembly drives the first sliding gear and the second sliding gear to move on the intermediate shaft, so that the first sliding gear engages with the input gear or the first gear to be detected, and the second sliding gear engages with the output gear or the second gear to be detected.

[0012] Optionally, the transmission assembly includes:

[0013] a driving member mounted on the outside of the box;

[0014] A guide rail, a first sliding member, and a second sliding member are provided inside the box, wherein the first sliding member is connected to the driving member and the first sliding gear respectively, and the second sliding member is connected to the driving member and the second sliding gear respectively;

[0015] The driving member drives the first sliding member to slide along the guide rail, thereby driving the first sliding gear to move on the intermediate shaft;

[0016] The driving member drives the second sliding member to slide along the guide rail, thereby driving the second sliding gear to move on the intermediate shaft.

[0017] Optionally, the driving member includes:

[0018] a first motor and a second motor, wherein the first motor and the second motor are both provided with a motor shaft;

[0019] a first cable reel and a second cable reel, wherein the first cable reel is fixedly connected to the motor shaft of the first motor, and the second cable reel is fixedly connected to the motor shaft of the second motor;

[0020] at least two guide structures, wherein the guide structures are connected to the first reel and the first sliding member respectively through a first wire body, and the guide structures are connected to the second reel and the second sliding member respectively through a second wire body;

[0021] The first motor drives the first wire reel to rotate by rotating the motor shaft, so that the first wire is tightened along the rotation direction of the first wire reel, thereby driving the first sliding member to slide along the guide rail;

[0022] The second motor drives the second wire reel to rotate by rotating the motor shaft, so that the second wire body is tightened along the rotation direction of the second wire reel, thereby driving the second sliding member to slide along the guide rail.

[0023] Optionally, the first reel and the second reel are both provided with two winding portions recessed in a radial direction, the first wire body is wound around the winding portion of the first reel, and the second wire body is wound around the winding portion of the second reel.

[0024] Optionally, the guide structure includes:

[0025] A first bracket, comprising: a base, a first mounting portion and a second mounting portion fixedly connected to the base, the first mounting portion and the second mounting portion being arranged opposite to each other;

[0026] A first guide wheel and a second guide wheel, wherein the first guide wheel is fixedly mounted on the first mounting portion, and the second guide wheel is fixedly mounted on the second mounting portion.

[0027] Optionally, the first wire pulley and the second wire pulley are both provided with grooves, the first wire body is wound in the groove of the first wire pulley, and the second wire body is wound in the groove of the second wire pulley.

[0028] Optionally, both the first sliding member and the second sliding member include:

[0029] a second bracket, one end of the second bracket being slidably connected to the guide rail, and the other end of the second bracket being provided with two gear paddles facing each other;

[0030] Two bull's eye bearings, the bull's eye bearings being mounted on the gear paddle;

[0031] Wherein, at least one of the bull's eye bearings on the first sliding member abuts against the first sliding gear;

[0032] At least one of the bull's eye bearings on the second sliding member abuts against the second sliding gear.

[0033] Optionally, a first through hole, a second through hole, a third through hole and a fourth through hole are formed on the side surface of the box body;

[0034] Wherein, the first end of the first wire passes through the first through hole and is connected to one of the gear paddles on the first sliding member, and the second end of the first wire passes through the second through hole and is connected to the other gear paddle on the first sliding member;

[0035] The first end of the second wire passes through the third through hole and is connected to one of the gear paddles on the second sliding member, and the second end of the second wire passes through the fourth through hole and is connected to the other gear paddle on the second sliding member.

[0036] Optionally, a guide flat key is provided on the intermediate shaft, and the first sliding gear and the second sliding gear are respectively slidably mounted on the intermediate shaft through the guide flat key.

[0037] The beneficial effects of the present invention are:

[0038] In the above scheme, a normal input gear and at least one faulty first gear to be detected are provided on the input shaft, and a normal output gear and at least one faulty second gear to be detected are provided on the output shaft. The first sliding gear and the second sliding gear can be driven to move on the intermediate shaft through the transmission component, and then the first sliding gear and the second sliding gear are selected to mesh with which gear on the input shaft and the output shaft respectively, thereby realizing automatic replacement of gears in gear fault detection and reducing interference caused by human participation. In this way, higher-quality detection data can be obtained conveniently and quickly, greatly simplifying fault operations. Moreover, since multiple gears to be detected can be provided, it is convenient to collect a variety of data sets, which is more conducive to building an accurate deep learning diagnostic model. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A partial schematic diagram showing a transmission fault detection structure provided by an embodiment of the present invention;

[0040] Figure 2 A schematic diagram of a transmission fault detection structure provided by an embodiment of the present invention is shown;

[0041] Figure 3 A schematic structural diagram of a cable reel provided by an embodiment of the present invention is shown;

[0042] Figure 4 A schematic diagram showing the installation of a guide structure provided by an embodiment of the present invention in a transmission fault detection structure;

[0043] Figure 5 A schematic diagram showing the installation of a transmission assembly in a transmission fault detection structure according to an embodiment of the present invention;

[0044] Figure 6 A schematic diagram illustrating the installation of a first sliding member and a second sliding member in a transmission fault detection structure provided by an embodiment of the present invention is shown.

[0045] Description of reference numerals:

[0046] 1-housing; 2-input shaft; 3-intermediate shaft; 301-first sliding gear; 302-second sliding gear; 4-output shaft; 5-guide rail; 6-first sliding member; 601-second bracket; 6011-gear paddle; 602-bull's eye bearing; 7-second sliding member; 8-first motor; 9-second motor; 10-first reel; 11-second reel; 12-guide structure; 1201-first bracket; 1202-first wire pulley; 1203-second wire pulley; 13-first wire body. DETAILED DESCRIPTION

[0047] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] The present invention aims to provide a transmission fault detection structure to solve the problems that the data types obtained by the existing transmission test bench are relatively single and the operation is not convenient enough.

[0049] like Figure 1-Figure 2 As shown, one embodiment of the present invention provides a transmission fault detection structure, including:

[0050] A box body 1, wherein an accommodating space is formed inside the box body 1;

[0051] An input shaft 2, an intermediate shaft 3, and an output shaft 4 are sequentially installed inside the housing 1. The input shaft 2 is provided with an input gear and at least one first gear to be detected. The intermediate shaft 3 is provided with a first sliding gear 301 and a second sliding gear 302. The output shaft 4 is provided with an output gear and at least one second gear to be detected.

[0052] a transmission assembly, the transmission assembly being connected to the first sliding gear 301 and the second sliding gear 302 respectively;

[0053] The transmission assembly drives the first sliding gear 301 and the second sliding gear 302 to move on the intermediate shaft 3, so that the first sliding gear 301 engages with the input gear or the first gear to be detected, and the second sliding gear 302 engages with the output gear or the second gear to be detected.

[0054] Here, the input gear and the output gear refer to normal gears, that is, gears that have not experienced any faults. The input shaft 2, the intermediate shaft 3, and the output shaft 4 can be mounted on the housing 1 through bearings.

[0055] It should be noted that there are many types of gear failures, such as broken teeth, missing teeth, wear, pitting, etc. Therefore, to detect gears with different types of failures, it is necessary to make different gears to be tested engage. Here, by driving the sliding gears (i.e., the first sliding gear 301 and the second sliding gear 302) to move on the intermediate shaft 3 through the transmission component, the meshing state of the gears on the input shaft 2 and the output shaft 4 can be changed, thereby enabling the first sliding gear 301 to mesh with any gear on the input shaft 2, and the second sliding gear 302 to mesh with any gear on the output shaft 4. In this way, by driving the sliding gears through the transmission component, the gear to be tested can be quickly and easily replaced, reducing the interference that may be caused by manually replacing the gear to be tested.

[0056] As Figure 1 Taking the structure shown as an example, the box 1 contains a two-stage transmission structure with a transmission ratio of 5:1. Figure 1 In the embodiment, the input shaft 2, the intermediate shaft 3 and the output shaft 4 are sequentially arranged in the housing 1, and the transmission ratios of each gear stage are 2.33:1 and 2.14:1 respectively. Figure 1 In the structure shown, an input gear and two first gears to be detected are provided on the input shaft, and an output gear and two second gears to be detected are provided on the output shaft 4. Then, the transmission fault detection structure of the embodiment of the present invention may be divided into the following situations during detection:

[0057] (1) Engaging the first sliding gear 301 with the input gear and the second sliding gear 302 with the output gear allows for output of test data indicating that all gears are operating normally. The test data may include torque signals, vibration acceleration signals, vibration, noise, heat, and other data.

[0058] (2) Engaging the first sliding gear 301 with the first gear to be detected and the second sliding gear 302 with the output gear allows for output of detection data in the event of a failure of the first gear to be detected. Since two first gears to be detected are provided on the input shaft 2, detection data can be output for both failure scenarios.

[0059] Similarly, by meshing the first sliding gear 301 with the input gear and the second sliding gear 302 with a second gear to be detected, detection data can be output when the second gear to be detected is faulty. Since two second gears to be detected are provided on the output shaft 4, detection data can be output for two fault conditions.

[0060] (3) Engage the first sliding gear 301 with one of the first gears to be detected, and mesh the second sliding gear 302 with one of the second gears to be detected. Since two first gears to be detected are provided on the input shaft 2 and two second gears to be detected are provided on the output shaft 4, detection data for four fault combinations can be output.

[0061] Therefore, if Figure 1 The transmission fault detection structure shown can detect four faults and four fault combinations by driving the sliding gear without disassembling the gears. It is understood that by adding gears to be tested on input shaft 2 and output shaft 4, a wider range of data can be output, eliminating the need for frequent manual replacement of gears to be tested. This reduces interference caused by manual intervention, facilitates data collection, improves data accuracy, and can detect a wider range of fault types, thereby further facilitating the construction of accurate deep learning diagnostic models.

[0062] In this embodiment, a normal input gear and at least one faulty first gear to be detected are provided on the input shaft, and a normal output gear and at least one faulty second gear to be detected are provided on the output shaft. The first sliding gear and the second sliding gear can be driven to move on the intermediate shaft through the transmission assembly, and then the first sliding gear and the second sliding gear are selected to engage with which gear on the input shaft and the output shaft respectively, thereby realizing automatic replacement of gears in gear fault detection and reducing interference caused by human participation. In this way, higher-quality detection data can be obtained conveniently and quickly, greatly simplifying fault operations. Moreover, since multiple gears to be detected can be provided, it is convenient to collect a variety of data sets, which is more conducive to building an accurate deep learning diagnostic model.

[0063] Optionally, the transmission assembly includes:

[0064] A driving member installed outside the box 1;

[0065] A guide rail 5, a first sliding member 6, and a second sliding member 7 are provided inside the box 1, wherein the first sliding member 6 is connected to the driving member and the first sliding gear 301, respectively, and the second sliding member 7 is connected to the driving member and the second sliding gear 302, respectively;

[0066] The driving member drives the first sliding member 6 to slide along the guide rail 5, thereby driving the first sliding gear 301 to move on the intermediate shaft 3; the driving member drives the second sliding member 7 to slide along the guide rail 5, thereby driving the second sliding gear 302 to move on the intermediate shaft 3.

[0067] In this embodiment, the driving member can drive the first sliding member 6 and the second sliding member 7 to slide along the guide rail 5, thereby driving the sliding gears (i.e., the first sliding gear 301 and the second sliding gear 302) on the intermediate shaft 3 to move, and then changing the meshing state of the sliding gears on the intermediate shaft 3. For example, by driving the driving member, the first sliding gear 301 is moved a certain distance, so that the first sliding gear 301 changes from a state of meshing with the input gear to a state of meshing with the first gear to be detected.

[0068] Optionally, the driving member includes:

[0069] A first motor 8 and a second motor 9, wherein the first motor 8 and the second motor 9 are both provided with a motor shaft;

[0070] a first cable reel 10 and a second cable reel 11, wherein the first cable reel 10 is fixedly connected to the motor shaft of the first motor 8, and the second cable reel 11 is fixedly connected to the motor shaft of the second motor 9;

[0071] At least two guide structures 12, each of which is connected to the first reel 10 and the first slider 6 via a first wire 13, and each of which is connected to the second reel 11 and the second slider 7 via a second wire;

[0072] Among them, the first motor 8 drives the first wire reel 10 to rotate by rotating the motor shaft, so that the first wire body 13 is tightened along the rotation direction of the first wire reel 10 to drive the first sliding member 6 to slide along the guide rail 5; the second motor 9 drives the second wire reel 11 to rotate by rotating the motor shaft, so that the second wire body is tightened along the rotation direction of the second wire reel 11 to drive the second sliding member 7 to slide along the guide rail 5.

[0073] Here, the first wire body 13 and the second wire body can be made of Kevlar wire, which has high strength and can ensure the stability of the overall performance of the transmission component.

[0074] Reference Figure 2 、 Figure 4 、 Figure 5As shown, the guide structure 12 is fixedly mounted on the housing 1, and serves to guide the first wire body 13 and the second wire body. Specifically, after the first wire body 13 is wound around the first reel 10 for several turns, it can be guided by the guide structure, and the two ends of the first wire body 13 are respectively passed through the housing 1, enter the interior of the housing 1, and are respectively fixed on the first sliding member 6, so that when the first reel 10 rotates along the motor shaft, the first wire body 13 can be tightened along the rotation direction of the first reel 10, thereby driving the first sliding member 6 to slide along the guide rail 5; similarly, after the second wire body is wound around the second reel 11 for several turns, it can be guided by the guide structure, and the two ends of the second wire body are respectively passed through the housing 1, enter the interior of the housing 1, and are respectively fixed on the second sliding member 7, so that when the second reel 11 rotates along the motor shaft, the second wire body can be tightened along the rotation direction of the second reel 11, thereby driving the second sliding member 7 to slide along the guide rail 5.

[0075] like Figure 2 As shown, the first motor 8 and the second motor 9 are installed on the box body 1. The first motor 8 rotates the first reel 10 by rotating the motor shaft, and the second motor 9 rotates the second reel 11 by rotating the motor shaft. Among them, the first motor 8 and the second motor 9 can be selected to be stepper motors. In this way, by accurately controlling the rotation angle of the first motor 8 and the second motor 9, the sliding distance of the first sliding member 6 and the second sliding member 7 along the guide rail 5 can be controlled respectively, that is, the distance that the first sliding gear 301 and the second sliding gear 302 move on the intermediate shaft 3 can be controlled respectively. Specifically, the specific angle that needs to be controlled to rotate the motor (i.e., the first motor 8 and the second motor 9) when replacing the gear to be tested can be determined through experiments.

[0076] In this embodiment, the movement of the sliding gear on the intermediate shaft 3 can be controlled by controlling the rotation angle of the motor. The power transmission in the driving process can be achieved by using Kevlar wire, and the rotation of the motor is converted into the sliding of the first sliding member 6 and the second sliding member 7 on the guide rail 5, thereby driving the first sliding gear 301 and the second sliding gear 302 to move on the intermediate shaft 3, realizing the effect of automatic replacement of the gear to be tested based on wire transmission, and thus realizing automatic transmission fault diagnosis.

[0077] Optionally, the first wire reel 10 and the second wire reel 11 are both recessed with two winding portions in a radial direction, the first wire body 13 is wound around the winding portion of the first wire reel 10 , and the second wire body is wound around the winding portion of the second wire reel 11 .

[0078] It should be noted that the reel (ie, the first reel 10, the second reel 11) is provided with two layers of wire grooves (ie, winding parts), and the winding parts are used for winding the wire bodies (ie, the first wire body 13, the second wire body). Figure 3As shown, this is an optional winding method for the wire body when it is wound on the reel. In this way, when the reel rotates, one end of the wire body is tightened and the other end of the wire body is loosened, while the total length of the wire body remains unchanged, thereby achieving the purpose of pulling the sliding member (i.e., the first sliding member 6 and the second sliding member 7).

[0079] Optionally, the guide structure 12 includes:

[0080] A first bracket 1201, comprising: a base, a first mounting portion fixedly connected to the base, and a second mounting portion, wherein the first mounting portion and the second mounting portion are arranged opposite to each other;

[0081] A first wire pulley 1202 and a second wire pulley 1203 , wherein the first wire pulley 1202 is fixedly mounted on the first mounting portion, and the second wire pulley 1203 is fixedly mounted on the second mounting portion.

[0082] In this embodiment, the first wire pulley 1202 and the second wire pulley 1203 are respectively used to guide different wire bodies. For example, the first wire pulley 1202 is used to guide the first wire body 13, and the second wire pulley 1203 is used to guide the second wire body.

[0083] like Figure 2 As shown, as an optional embodiment, the first sliding member 6 and the second sliding member 7 both include:

[0084] A second bracket 601, one end of which is slidably connected to the guide rail 5, and the other end of which is provided with two gear shifters 6011;

[0085] Two bull's eye bearings 602 are mounted on the gear paddle 6011 ; wherein at least one bull's eye bearing 602 on the first sliding member 6 abuts against the first sliding gear 301 ; and at least one bull's eye bearing 602 on the second sliding member 7 abuts against the second sliding gear 302 .

[0086] In this embodiment, the gear paddles 6011 can be machined sheet-like structures. Two gear paddles 6011 are positioned opposite each other on the second bracket 601, and each gear paddle 6011 is mounted with a bull's eye bearing 602. The first sliding gear 301 is clamped between the two gear paddles 6011 on the first slider 6 and abuts against at least one bull's eye bearing 602 on the first slider 6. The second sliding gear 302 is clamped between the two gear paddles 6011 on the second slider 7 and abuts against at least one bull's eye bearing 602 on the second slider 7. Thus, when the first slider 6 slides along the guide rail in the first direction, the bull's eye bearings 602 on the first slider 6 push the first sliding gear 301 in the first direction. Similarly, when the second slider 7 slides along the guide rail in the first direction, the bull's eye bearings 602 on the second slider 7 push the second sliding gear 302 in the first direction. It should be noted that the bull's eye bearing 602 is used here to avoid affecting the rotation of the sliding gear along the intermediate shaft.

[0087] Optionally, a first through hole, a second through hole, a third through hole, and a fourth through hole are formed on the side of the box body 1; wherein the first end of the first wire body 13 passes through the first through hole and is connected to one of the gear paddles 6011 on the first sliding member 6, and the second end of the first wire body 13 passes through the second through hole and is connected to the other gear paddle 6011 on the first sliding member 6;

[0088] The first end of the second wire passes through the third through hole and is connected to one of the gear paddles 6011 on the second sliding member 7 , and the second end of the second wire passes through the fourth through hole and is connected to the other gear paddle 6011 on the second sliding member 7 .

[0089] In this embodiment, each strand of wire (i.e., first wire 13 and second wire) enters the housing 1 through a hole (i.e., the first through hole, the second through hole, the third through hole, and the fourth through hole) in the housing and is then attached to a gear paddle 6011. The first wire 13 and the second wire pass through different holes in the housing and therefore do not interfere with each other. It should be noted that the precise passage of the wires through the holes in the housing is achieved by the cooperation of a guide structure 12 fixedly mounted on the housing 1, which guides the wires.

[0090] Specifically:

[0091] As Figure 2Taking the structure shown as an example, four guide structures 12 can be set on the box body 1, two of which are located on the second outer side surface of the box body 1, and the other two guide structures 12 are respectively located on the first outer side surface and the third outer side surface of the box body 1, wherein the first outer side surface, the second outer side surface and the third outer side surface are connected in sequence, and the first outer side surface and the third outer side surface are arranged opposite to each other.

[0092] As an optional embodiment, in the guide structure 12, the first wire wheel 1202 and the second wire wheel 1203 are both provided with grooves, the first wire body 13 is wound in the groove of the first wire wheel 1202, and the second wire body is wound in the groove of the second wire wheel 1203.

[0093] like Figure 2 、 Figure 4 、 Figure 5 As shown, after the first wire body 13 is wound on the first reel 10, it is wound in the groove of the first wire wheel 1202. In this way, after the two ends of the first wire body 13 are guided by the two guide structures 12, one end of the first wire body passes through the first through hole on the box body 1, and the other end passes through the second through hole on the box body 1, enters the interior of the box body 1, and is respectively fixed on different gear paddles 6011 on the first sliding member 6, so that when the first reel 10 rotates following the motor shaft, the first wire body 13 can be tightened along the rotation direction of the first reel 10, thereby driving the first sliding member 6 to slide along the guide rail 5; similarly, the second wire body is wound on the second reel 11 and wound in the groove of the second wire wheel 1203. In this way, after the two ends of the second wire body are guided by the two guide structures 12, one end of the second wire body passes through the third through hole on the box body 1, and the other end passes through the fourth through hole on the box body 1, enters the interior of the box body 1, and is respectively fixed on different gear paddles 6011 on the second sliding member 7.

[0094] It can be seen that the guide structure 12 is provided to "fix" the position of the wire, that is, to limit the transmission route of the wire and ensure the smoothness of the movement of the wire.

[0095] Optionally, a guide flat key is provided on the intermediate shaft 3 , and the first sliding gear 301 and the second sliding gear 302 are respectively slidably mounted on the intermediate shaft 3 via the guide flat key.

[0096] It should be noted that, in the prior art, it is necessary to manually replace another gear to be detected after the detection of one gear to be detected is completed. In the embodiment of the present invention, multiple gears to be detected (i.e., at least one first gear to be detected and at least one second gear to be detected) can be set, and then the sliding gears on the intermediate shaft 3 (i.e., the first sliding gear 301 and the second sliding gear 302) are moved by the transmission component to change the meshing state of the sliding gears (i.e., select which gear the sliding gear is meshed with), thereby realizing automatic replacement of the gears to be detected without frequent manual replacement, reducing the interference caused by human participation, improving structural stability, and improving the simplicity of operation and enhancing the operator-friendliness.

[0097] In an embodiment of the present invention, a normal input gear and at least one faulty first gear to be detected are provided on the input shaft, and a normal output gear and at least one faulty second gear to be detected are provided on the output shaft. The first sliding gear and the second sliding gear can be driven to move on the intermediate shaft through the transmission assembly, and then the first sliding gear and the second sliding gear are selected to mesh with which gear on the input shaft and the output shaft respectively. This realizes automatic replacement of gears in gear fault detection and reduces interference caused by human participation. In this way, higher-quality detection data can be obtained conveniently and quickly, the operation is simplified, and it is convenient to collect a variety of data sets, which is more conducive to building an accurate deep learning diagnostic model.

[0098] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary personnel in this technical field, several improvements and modifications can be made without departing from the principles described in the present invention. These improvements and modifications are also within the scope of protection of the present invention.

Claims

1. A transmission fault detection structure, characterized in that: include: A box body (1), wherein an accommodating space is formed inside the box body (1); An input shaft (2), an intermediate shaft (3), and an output shaft (4) are sequentially mounted inside the housing (1); the input shaft (2) is provided with an input gear and at least one first gear to be detected; the intermediate shaft (3) is provided with a first sliding gear (301) and a second sliding gear (302); and the output shaft (4) is provided with an output gear and at least one second gear to be detected; a transmission assembly, the transmission assembly being connected to the first sliding gear (301) and the second sliding gear (302) respectively; The transmission assembly drives the first sliding gear (301) and the second sliding gear (302) to move on the intermediate shaft (3), so that the first sliding gear (301) is engaged with the input gear or the first gear to be detected, and the second sliding gear (302) is engaged with the output gear or the second gear to be detected; Wherein, the transmission assembly includes: A driving member installed outside the box (1); A guide rail (5), a first sliding member (6), and a second sliding member (7) are arranged inside the box (1), the first sliding member (6) being connected to the driving member and the first sliding gear (301) respectively, and the second sliding member (7) being connected to the driving member and the second sliding gear (302) respectively; The driving member drives the first sliding member (6) to slide along the guide rail (5), thereby driving the first sliding gear (301) to move on the intermediate shaft (3); The driving member drives the second sliding member (7) to slide along the guide rail (5), thereby driving the second sliding gear (302) to move on the intermediate shaft (3); Wherein, the first sliding member (6) and the second sliding member (7) both comprise: a second bracket (601), one end of the second bracket (601) being slidably connected to the guide rail (5), and the other end of the second bracket (601) being provided with two gear paddles (6011) facing each other; Two bull's eye bearings (602), the bull's eye bearings (602) being mounted on the gear paddle (6011); wherein at least one of the bull's eye bearings (602) on the first sliding member (6) abuts against the first sliding gear (301); At least one of the bull's eye bearings (602) on the second sliding member (7) abuts against the second sliding gear (302).

2. The transmission fault detection structure according to claim 1, characterized in that: The driving member includes: A first motor (8) and a second motor (9), wherein the first motor (8) and the second motor (9) are both provided with a motor shaft; A first cable reel (10) and a second cable reel (11), wherein the first cable reel (10) is fixedly connected to the motor shaft on the first motor (8), and the second cable reel (11) is fixedly connected to the motor shaft on the second motor (9); At least two guide structures (12), wherein the guide structures (12) are respectively connected to the first wire reel (10) and the first sliding member (6) via a first wire body (13), and the guide structures (12) are respectively connected to the second wire reel (11) and the second sliding member (7) via a second wire body; wherein the first motor (8) drives the first wire reel (10) to rotate by rotating the motor shaft, so that the first wire body (13) is tightened along the rotation direction of the first wire reel (10), thereby driving the first sliding member (6) to slide along the guide rail (5); The second motor (9) drives the second wire reel (11) to rotate by rotating the motor shaft, so that the second wire body is tightened along the rotation direction of the second wire reel (11), thereby driving the second sliding member (7) to slide along the guide rail (5).

3. The transmission fault detection structure according to claim 2, characterized in that: The first wire reel (10) and the second wire reel (11) are both provided with two wire winding portions recessed in a radial direction, the first wire body (13) is wound around the wire winding portion of the first wire reel (10), and the second wire body is wound around the wire winding portion of the second wire reel (11).

4. The transmission fault detection structure according to claim 2, characterized in that: The guide structure (12) comprises: A first bracket (1201), comprising: a base, a first mounting portion fixedly connected to the base, and a second mounting portion, wherein the first mounting portion and the second mounting portion are arranged opposite to each other; A first wire pulley (1202) and a second wire pulley (1203), wherein the first wire pulley (1202) is fixedly mounted on the first mounting portion, and the second wire pulley (1203) is fixedly mounted on the second mounting portion.

5. The transmission fault detection structure according to claim 4, characterized in that: The first wire wheel (1202) and the second wire wheel (1203) are both provided with grooves, the first wire body (13) is wound in the groove of the first wire wheel (1202), and the second wire body is wound in the groove of the second wire wheel (1203).

6. The transmission fault detection structure according to claim 1, characterized in that: The side surface of the box body (1) is provided with a first through hole, a second through hole, a third through hole and a fourth through hole; Wherein, the first end of the first wire body (13) passes through the first through hole and is connected to one of the gear paddles (6011) on the first sliding member (6), and the second end of the first wire body (13) passes through the second through hole and is connected to the other gear paddle (6011) on the first sliding member (6); The first end of the second wire body passes through the third through hole and is connected to one of the gear paddles (6011) on the second sliding member (7), and the second end of the second wire body passes through the fourth through hole and is connected to the other gear paddle (6011) on the second sliding member (7).

7. The transmission fault detection structure according to claim 1, characterized in that: A guide flat key is provided on the intermediate shaft (3), and the first sliding gear (301) and the second sliding gear (302) are respectively slidably mounted on the intermediate shaft (3) via the guide flat key.

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