Test device for simulating rolling bearing faults

Abstract

This utility model relates to the field of mechanical fault simulation technology, and discloses a test device for simulating rolling bearing faults, including a base, a drive structure, and a fixed structure. The drive structure includes a drive component and a rotating component. The drive component is disposed on the base, and one end of the rotating component is connected to the drive end of the drive component. The fixed structure includes at least two fixed components, which are spaced apart on the base. Each fixed component includes a fixed part and at least two blocking parts. The fixed part is detachably connected to the base. The fixed part has a fixing portion, and the fixing portions on the two fixed parts are correspondingly arranged. The other end of the rotating component is adapted to pass through the two fixing portions in sequence. The fixed portion is adapted to install a bearing, and the bearing is adapted to be sleeved on the rotating component through the end of the rotating component away from the drive component. The two blocking parts are respectively disposed on both sides of the bearing and are both connected to the fixed parts to limit the bearing. This utility model is beneficial to improving the bearing replacement efficiency and the test efficiency of the test device.

Description

Technical Field

[0001] This utility model relates to the field of mechanical fault simulation technology, specifically to a test device for simulating rolling bearing faults. Background Technology

[0002] As an important basic component, rolling bearings are widely used in various mechanical equipment. At the same time, as a common consumable component, rolling bearings often fail during use. Therefore, it is necessary to identify the faulty rolling bearings in order to replace them with fault-free ones.

[0003] In existing technologies, identifying faulty rolling bearings typically requires collecting vibration data from a vibration analyzer. Workers then analyze this data to identify the faulty bearing. However, to cultivate workers' observational skills, a device is needed to simulate the vibration data of a faulty rolling bearing during rotation, facilitating learning and experience accumulation. Currently, simulation tests on faulty rolling bearings mainly rely on testing equipment, which includes a drive motor and a rotor shaft. The rotor shaft is connected to the drive end of the drive motor, and the faulty rolling bearing is mounted on the rotor shaft. When the drive motor rotates the rotor shaft, the faulty rolling bearing mounted on the rotor shaft rotates synchronously with the rotor shaft. This allows the vibration analyzer to collect the vibration data of the faulty bearing, enabling workers to understand the vibration data and accumulate experience for future practical operations.

[0004] However, in existing testing equipment, the fixing structure between the rolling bearing and its rotor shaft is relatively complex, such as heat fitting or interference fit. As a result, the replacement of the rolling bearing requires disassembly of transmission components, which takes a long time and leads to low bearing replacement efficiency and reduced testing efficiency of the testing equipment. Utility Model Content

[0005] In view of this, the present invention provides a test device for simulating rolling bearing failure, in order to solve the problem that the fixed structure between the rotor shaft and the rolling bearing in the existing test device is relatively complex, which makes it take a long time to replace the bearing, resulting in low bearing replacement efficiency and reduced test efficiency of the test device.

[0006] In a first aspect, this utility model provides a test device for simulating rolling bearing failure, comprising:

[0007] Base;

[0008] A driving structure includes a driving component and a rotating component, wherein the driving component is disposed on the base, and one end of the rotating component is connected to the driving end of the driving component;

[0009] A fixed structure includes at least two fixed components, which are spaced apart on the base. Each fixed component includes a fixing member and at least two blocking members. The fixing member is detachably connected to the base. The fixing member has a fixing part. The fixing parts on the two fixing members are correspondingly arranged. The other end of the rotating member is adapted to pass through the two fixing parts in sequence.

[0010] The fixed part is adapted to install a bearing, and the bearing is adapted to be sleeved on the rotating part at one end away from the driving part. The two blocking parts are respectively arranged on both sides of the bearing and are connected to the fixed part to limit the bearing.

[0011] Beneficial effects: The bearing is installed by the fixing part on the fixing component, and the bearing is limited by two blocking parts on both sides of the bearing and connected to the fixing component. Finally, the bearing is driven to rotate in the fixing part by the rotating part connected to the driving end of the driving component, thereby performing performance testing on the rotating bearing. After the performance testing of one bearing, since the fixing component and the base are detachably connected and the bearing is sleeved on the rotating part, the fixing component and the tested bearing installed in the fixing part can be directly removed from the base at the same time, and another fixing component with another bearing to be tested installed can be installed on the base, thus realizing bearing replacement. This helps to improve the bearing replacement efficiency and the testing efficiency of the testing device.

[0012] In one alternative embodiment, the bearing and the rotating component are in a clearance fit.

[0013] Beneficial effects: By setting a clearance fit between the bearing and the rotating part, the bearing is sleeved on the rotating part at the end away from the driving part. Since there is a clearance between the bearing and the rotating part, the bearing can be directly sleeved on the rotating part, which helps to improve the installation efficiency of the bearing.

[0014] In one optional embodiment, the end of the rotating member away from the driving member is provided with a connecting portion and a plurality of mounting portions communicating with the connecting portion;

[0015] It also includes a tightening structure, which is movably disposed between the connecting part and the mounting part, and under the action of external force, the tightening structure is adapted to abut against the inner ring of the bearing.

[0016] Beneficial effects: Through the connecting part and several mounting parts provided on the rotating part, as well as the expansion structure provided on the rotating part, the connecting part and the mounting part in this embodiment are respectively the connecting groove and the mounting groove. The connecting part is specifically provided at the end of the rotating part away from the driving part, and all the mounting parts are connected to the connecting part. This allows the expansion structure to be movably provided between the connecting part and all the mounting parts, so that the expansion structure can be installed on the rotating part. Under the action of external force, the expansion structure can move between the connecting part and all the mounting parts, so that the expansion structure can abut against the inner ring of the bearing in the fixing part on one of the fixing parts, thereby fixing the bearing on the rotating part, thus realizing the interference fit between the bearing and the rotating part, which is beneficial to improving the accuracy of bearing performance testing.

[0017] In one optional embodiment, the expansion structure includes a connector and a plurality of expansion members, the connector being adapted to be inserted into the connecting portion, and a portion of the connector being threadedly connected to the connecting portion, and any one of the expansion members being slidably disposed within a mounting portion;

[0018] A portion of the outer surface of the connector is set as a conical surface. When the expansion member is installed in the mounting part, the expansion member abuts against the conical surface so that under the action of external force, the connector moves in the connecting part along the axial direction of the rotating member, and drives all the expansion members to move in the mounting part along the radial direction of the rotating member through the conical surface, and causes all the expansion members to abut against the inner ring of the bearing.

[0019] Beneficial effects: By setting an expansion structure including a connector and several expansion members, the connector and expansion members in this embodiment are a connecting rod and an expansion block, respectively. The connector can be inserted into the connecting part, and part of the connector is threaded to the connecting part. Thus, the connector can be fixedly installed in the connecting part through the threaded connection of this part, and the connector can also move in the axial direction of the rotating part through the threaded connection of this part. Each expansion member is slidably set in a mounting part, so that under the action of external force, the expansion can move in the radial direction of the rotating part within the mounting part.

[0020] The outer surface of the connector is partially tapered, so that when the expansion member is installed in the mounting part, the expansion member can abut against the tapered surface on the connector. Under the action of external force, the connector can move in the axial direction of the rotating part in the mounting part through its threaded connection with the connecting part. During the movement of the connector, the connector can drive all the expansion members to move in the radial direction of the rotating part in the mounting part through the tapered surface on its outer surface, so that all the expansion members can abut against the inner ring of the bearing. In this way, an interference fit between the bearing and the rotating part can be achieved through all the expansion members.

[0021] In one optional embodiment, the drive structure further includes a brake member disposed on the drive member, the brake member being used to brake the drive end of the drive member to limit the rotation of the drive end of the drive member.

[0022] Beneficial effects: By including a braking component in the drive structure, the braking component is specifically set on the drive component, and in this embodiment, the braking component is an electromagnetic brake, thereby enabling the braking component to perform emergency braking on the drive end of the drive component. In an emergency, the braking component can limit the rotation of the drive end of the drive component to avoid damage to the rotating component and bearing.

[0023] In an optional embodiment, a control structure is further included, comprising a control element and a display element. The control element is disposed on the base and electrically connected to the brake element to control the opening and closing of the brake element. The display element is disposed on the control element and electrically connected to the drive element to display the rotational speed of the drive end of the drive element.

[0024] Beneficial effects: The control structure, which is mounted on the base, includes a control component and a display component. In this embodiment, the control component and the display component are a controller and a display screen, respectively. The control component is electrically connected to the braking component, enabling it to control the starting or stopping of the braking component. In case of an emergency, the operator can directly control the braking component to open. The display component is mounted on the control component and is electrically connected to the drive component, allowing it to display the rotational speed of the drive end of the drive component. This facilitates the operator in analyzing the rotational speed of the rotating component and the bearing based on the rotational speed of the drive end of the drive component, and in analyzing the bearing performance based on the bearing's rotational speed.

[0025] In an optional embodiment, a protective member is further included, the protective member having a protective cavity with an opening on one side, the opening end of the protective member being adapted to cover the connection between the drive structure and the fixing structure and the base, so that the drive structure and the fixing structure are disposed within the protective cavity.

[0026] Beneficial effects: By setting a protective component on the base, which is a protective cover in this embodiment, the protective component has a protective cavity with an opening on one side, and the opening end of the protective component can cover the connection between the drive structure and the fixed structure and the base, so that the drive structure and the fixed structure can be set in the protective cavity, thereby avoiding external interference from affecting the normal operation of the bearings on the drive structure and the fixed structure.

[0027] In one optional embodiment, the fixing member has a plurality of receiving portions; it also includes a plurality of sensing elements, any one of which is disposed in one of the receiving portions, and the sensing element is adapted to sense the rotational speed of the bearing.

[0028] Beneficial effects: By using several receiving portions provided on the fixing member and sensing elements provided in the receiving portions, the receiving portions in this embodiment are receiving grooves and the sensing elements in this embodiment are sensors. Each sensing element can be provided in a receiving portion, thereby enabling the sensing elements to detect the rotational speed of the bearing installed in the fixing portion on the fixing member, so as to analyze the performance of the bearing by means of the rotational speed.

[0029] In one optional embodiment, the fastener has an embedded portion on each side that communicates with the fastening part, and the two blocking members are respectively disposed in one of the embedded portions.

[0030] Beneficial effects: By providing embedded portions on both sides of the fixing member, which are embedded grooves in this embodiment, and by providing two embedded portions that are connected to the fixing member, when the bearing is installed in the fixing member, the two blocking members can be installed in one embedded portion respectively, thereby enabling the two blocking members to block the bearing installed in the fixing member respectively, so as to prevent the bearing from moving.

[0031] In one optional embodiment, the base includes a body, a plurality of support members and at least two grip members, all of the support members being disposed on the same side of the body and connected to the body, and the two grip members being connected to the two ends of the body respectively.

[0032] Beneficial effects: By setting the base to include a main body, several support members and two grip members, the support members and grip members in this embodiment are respectively a support block and a grip rod. All the support members are set on the same side of the main body and are all connected to the main body, so that the main body can be installed on the work platform through all the support members. The two grip members are respectively set on both sides of the main body, so that when the main body needs to be moved, the worker can apply force to the main body through the two grip members. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of a test device for simulating rolling bearing failure according to an embodiment of the present invention;

[0035] Figure 2 This is a schematic diagram of the structure of a test device for simulating rolling bearing failure according to an embodiment of the present invention, with the protective components concealed.

[0036] Figure 3 This is an exploded structural diagram of the drive structure, fixing structure, and expansion structure of a test device for simulating rolling bearing failure according to an embodiment of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1-Base; 11-Body; 12-Support component; 13-Holding component;

[0039] 2-Drive structure; 21-Drive component; 22-Rotating component; 221-Connecting part; 222-Mounting part; 23-Brake component;

[0040] 31-Fixing component; 311-Fixing element; 3111-Fixing part; 3112-Receiving part; 3113-Embedding part; 312-Blocking element; 4-Tightening structure; 41-Connecting element; 42-Tightening element; 5-Control structure; 51-Control element; 52-Display element; 6-Protective element; 7-Bearing. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0042] The following is combined Figures 1 to 3 The following describes embodiments of the present invention.

[0043] According to embodiments of this utility model, on one hand, a test apparatus for simulating rolling bearing failure is provided, such as... Figures 1 to 3As shown, the structure includes a base 1, a drive structure 2, and a fixing structure. The drive structure 2 includes a drive member 21 and a rotating member 22. The drive member 21 is mounted on the base 1, and one end of the rotating member 22 is connected to the drive end of the drive member 21. The fixing structure includes at least two fixing components 31, which are spaced apart on the base 1. Each fixing component 31 includes a fixing member 311 and at least two blocking members 312. The fixing member 311 is detachably connected to the base 1. The fixing member 311 has a fixing part 3111. The fixing parts 3111 on the two fixing members 311 are correspondingly arranged. The other end of the rotating member 22 is adapted to pass through the two fixing parts 3111 in sequence. A bearing 7 is adapted to be installed in the fixing part 3111. The bearing 7 is adapted to be sleeved on the rotating member 22 through the end of the rotating member 22 away from the drive member 21. The two blocking members 312 are respectively arranged on both sides of the bearing 7 and are connected to the fixing member 311 to limit the bearing 7.

[0044] The above-described test device for simulating rolling bearing failure comprises a drive structure 2 and a fixed structure mounted on a base 1. The drive structure 2 includes a drive component 21 and a rotating component 22, which in this embodiment represent a drive motor and a rotor shaft, respectively. The drive component 21 is mounted on the base 1, and one end of the rotating component 22 is connected to the drive end of the drive component 21, allowing the rotating component 22 to rotate under the drive of the drive end of the drive component 21. The fixed structure includes two fixing components 31, which are spaced apart on the base 1. Each fixing component 31 includes a fixing element 311 and two... In this embodiment, the blocking member 312 and the fixing member 311 are respectively a fixing base and a blocking piece. The fixing member 311 is detachably disposed on the base 1 so that the fixing member 311 can be installed on the base 1 or removed from the base 1. The fixing member 311 has a fixing part 3111, which is a fixing hole in this embodiment. The fixing parts 3111 on the two fixing members 311 on the base 1 are correspondingly arranged with each other, so that the end of the rotating member 22 away from the driving member 21 can pass through the two fixing parts 3111 in sequence, thereby allowing the rotating member 22 to rotate between the two fixing parts 3111.

[0045] In addition, a bearing 7 can be installed in the fixing part 3111 of each fixing member 311. The bearing 7 can be sleeved on the rotating member 22 at the end away from the driving member 21, so that it can be installed in the fixing part 3111 of the fixing member 311 through the rotating member 22. This allows the bearing 7 to rotate in the fixing part 3111 through the rotating member 22, so that the performance of the bearing 7 can be tested by the rotation of the bearing 7. Two blocking members 312 are respectively arranged on both sides of the bearing 7, and each blocking member 312 is connected to the fixing member 311. This allows the two blocking members 312 to limit the two sides of the bearing 7 respectively, so as to prevent the bearing 7 from being displaced during rotation and affecting the accuracy of the test results.

[0046] In summary, the bearing 7 is installed through the fixing part 3111 on the fixing member 311, and the bearing 7 is limited by two blocking members 312 on both sides of the bearing 7 and connected to the fixing member 311. Finally, the bearing 7 is driven to rotate within the fixing part 3111 by the rotating member 22 connected to the driving end of the driving member 21, thereby performing performance testing on the rotating bearing 7. After the performance testing of one bearing 7, since the fixing member 311 and the base 1 are detachably connected, and the bearing 7 is sleeved on the rotating member 22, the fixing member 311 and the tested bearing 7 installed in the fixing part 3111 can be directly removed from the base 1 at the same time, and another fixing member 311 with the bearing 7 to be tested installed can be installed on the base 1, thus realizing the replacement of the bearing 7. This is beneficial to improving the replacement efficiency of the bearing 7 and the testing efficiency of the testing device.

[0047] Specifically, after removing the fixing member 311 and the tested bearing 7 installed in the fixing part 3111 from the base 1, the two blocking members 312 can be removed from the fixing member 311. In this way, the tested bearing 7 installed in the fixing part 3111 can be taken out. When installing the fixing member 311 with the bearing 7 to be tested installed on the base 1, the fixing member 311 can be moved to the installation position on the base 1 by fitting the bearing 7 from the end of the rotating member 22 away from the driving member 21 onto the rotating member 22. In this way, the fixing member 311 can be installed on the base 1.

[0048] In one embodiment, such as Figure 2 and Figure 3 As shown, the bearing 7 and the rotating part 22 are in clearance fit.

[0049] The above-described test device for simulating rolling bearing failures sets a clearance fit between the bearing 7 and the rotating component 22. This allows the bearing 7 to be fitted onto the rotating component 22 at the end away from the driving component 21. Because there is a clearance between the bearing 7 and the rotating component 22, the bearing 7 can be directly fitted onto the rotating component 22, which helps to improve the installation efficiency of the bearing 7.

[0050] In one embodiment, such as Figure 3 As shown, the rotating member 22 has a connecting part 221 and a plurality of mounting parts 222 that are connected to the connecting part 221 at one end away from the driving member 21; it also includes a tightening structure 4, which is movably disposed between the connecting part 221 and the mounting part 222. Under the action of external force, the tightening structure 4 is adapted to abut against the inner ring of the bearing 7.

[0051] The above-described test device for simulating rolling bearing failure utilizes a connecting member 41 and several mounting portions 222 on the rotating member 22, as well as a tightening structure 4 on the rotating member 22. In this embodiment, the connecting portion 221 and the mounting portions 222 are a connecting groove and a mounting groove, respectively. Specifically, the connecting portion 221 is located at the end of the rotating member 22 away from the driving member 21, and all the mounting portions 222 communicate with the connecting portion 221. This allows the tightening structure 4 to be movably disposed between the connecting portion 221 and all the mounting portions 222, enabling the tightening structure 4 to be installed on the rotating member 22. Under external force, the tightening structure 4 can move between the connecting portion 221 and all the mounting portions 222, allowing the tightening structure 4 to abut against the inner ring of the bearing 7 within the fixing portion 3111 on one of the fixing members 311, thereby fixing the bearing 7 onto the rotating member 22. This achieves an interference fit between the bearing 7 and the rotating member 22, which is beneficial for improving the accuracy of bearing 7 performance testing.

[0052] In one embodiment, such as Figure 3 As shown, the expansion structure 4 includes a connector 41 and several expansion members 42. The connector 41 is adapted to be inserted into the connecting part 221, and some of the connector 41 is threadedly connected to the connecting part 221. Any expansion member 42 is slidably disposed in a mounting part 222. Part of the outer surface of the connector 41 is set as a conical surface. When the expansion member 42 is installed in the mounting part 222, the expansion member 42 abuts against the conical surface so that under the action of external force, the connector 41 moves in the connecting part 221 along the axial direction of the rotating member 22, and all the expansion members 42 are driven to move in the mounting part 222 along the radial direction of the rotating member 22 through the conical surface, and all the expansion members 42 abut against the inner ring of the bearing 7.

[0053] The above-described test device for simulating rolling bearing failure includes a tensioning structure 4 comprising a connector 41 and several tensioning elements 42. In this embodiment, the connector 41 and the tensioning elements 42 are a connecting rod and a tensioning block, respectively. The connector 41 can be inserted into the connecting portion 221, and a portion of the connector 41 is threadedly connected to the connecting portion 221. This threaded connection allows the connector 41 to be fixedly installed in the connecting portion 221, and the connector 41 can also move in the axial direction of the rotating member 22 through this threaded connection. Each tensioning element 42 is slidably disposed in a mounting portion 222, so that under the action of external force, the tensioning element can move in the radial direction of the rotating member 22 within the mounting portion 222.

[0054] Specifically, part of the outer surface of the connector 41 is set as a conical surface, so that when the expansion member 42 is installed in the mounting part 222, the expansion member 42 can abut against the conical surface on the connector 41. Then, under the action of external force, the connector 41 can move in the axial direction of the rotating member 221 in the mounting part 221 through its threaded connection with the mounting part 221. During the movement of the connector 41, the connector 41 can drive all the expansion members 42 to move in the radial direction of the rotating member 222 in the mounting part 222 through the conical surface on its outer surface, so that all the expansion members 42 can abut against the inner ring of the bearing 7. In this way, the interference fit between the bearing 7 and the rotating member 22 can be achieved through all the expansion members 42.

[0055] In one embodiment, such as Figure 2 As shown, the drive structure 2 also includes a brake 23, which is disposed on the drive member 21. The brake 23 is used to brake the drive end of the drive member 21 to limit the rotation of the drive end of the drive member 21.

[0056] The test device for simulating rolling bearing failure with the above structure also includes a brake 23 by setting the drive structure 2. The brake 23 is specifically set on the drive 21, and in this embodiment, the brake 23 is an electromagnetic brake, so that the brake 23 can perform emergency braking on the drive end of the drive 21. In case of emergency, the brake 23 can limit the rotation of the drive end of the drive 21 to avoid damage to the rotating part 22 and the bearing 7.

[0057] In one embodiment, such as Figure 1 and Figure 2 As shown, it also includes a control structure 5, which includes a control element 51 and a display element 52. The control element 51 is disposed on the base 1 and is electrically connected to the brake element 23 to control the opening and closing of the brake element 23. The display element 52 is disposed on the control element 51 and is electrically connected to the drive element 21 to display the rotational speed of the drive end of the drive element 21.

[0058] The above-described test device for simulating rolling bearing failure utilizes a control structure 5 mounted on a base 1. The control structure 5 includes a controller 51 and a display 52, which in this embodiment are a controller and a display screen, respectively. The controller 51 is electrically connected to the brake 23, enabling it to control the activation or deactivation of the brake 23. In an emergency, personnel can directly control the brake 23 to activate via the controller 51. The display 52 is mounted on the controller 51 and electrically connected to the drive 21, displaying the rotational speed of the drive end of the drive 21. This allows personnel to analyze the rotational speeds of the rotating component 22 and the bearing 7 based on the rotational speed of the drive end of the drive 21, and to analyze the performance of the bearing 7 based on the rotational speed of the bearing 7.

[0059] In one embodiment, such as Figure 1 As shown, it also includes a protective member 6, which has a protective cavity with an opening on one side. The opening end of the protective member 6 is adapted to cover the drive structure 2 and the connection between the fixed structure and the base 1, so that the drive structure 2 and the fixed structure are disposed in the protective cavity.

[0060] The above-described test device for simulating rolling bearing failure uses a protective member 6 mounted on the base 1. In this embodiment, the protective member 6 is a protective cover. The protective member 6 has a protective cavity with an opening on one side, and the opening end of the protective member 6 can cover the drive structure 2 and the fixed structure connected to the base 1. This allows the drive structure 2 and the fixed structure to be placed inside the protective cavity, thereby preventing external interference from affecting the normal operation of the bearing 7 on the drive structure 2 and the fixed structure.

[0061] In one embodiment, such as Figure 3 As shown, the fixing member 311 has several receiving portions 3112; it also includes several sensing elements, each of which is disposed in a receiving portion 3112, and the sensing element is adapted to sense the rotational speed of the bearing 7.

[0062] The above-described test device for simulating rolling bearing failure uses several receiving portions 3112 provided on the fixing member 311 and sensors disposed in the receiving portions 3112. In this embodiment, the receiving portion 3112 is a receiving groove, and the sensor is a sensor. Each sensor can be disposed in a receiving portion 3112, so that the sensor can detect the rotational speed of the bearing 7 installed in the fixing portion 3111 on the fixing member 311, so as to analyze the performance of the bearing 7 by means of the rotational speed.

[0063] In one embodiment, such as Figure 3As shown, the fastener 311 has an insert portion 3113 on each side that is connected to the fastener 3111, and two blocking members 312 are respectively disposed in an insert portion 3113.

[0064] The test device for simulating rolling bearing failure with the above structure has two embedded parts 3113 on both sides of the fixing member 311. In this embodiment, the embedded part 3113 is an embedded groove. Both embedded parts 3113 are connected to the fixing member 3111. So when the bearing 7 is installed in the fixing member 3111, the two blocking members 312 can be installed in one embedded part 3113 respectively, so that the two blocking members 312 can block the bearing 7 installed in the fixing member 3111 respectively, so as to prevent the bearing 7 from moving.

[0065] In one embodiment, such as Figure 2 As shown, the base 1 includes a body 11, a number of support members 12 and at least two grip members 13. All the support members 12 are located on the same side of the body 11 and are connected to the body 11. The two grip members 13 are respectively connected to the two ends of the body 11.

[0066] The above-described test device for simulating rolling bearing failure includes a base 1 comprising a body 11, several support members 12, and two gripping members 13. In this embodiment, the support members 12 and the gripping members 13 are a support block and a gripping rod, respectively. All the support members 12 are located on the same side of the body 11 and are all connected to the body 11, so that the body 11 can be mounted on the work platform through all the support members 12. The two gripping members 13 are located on both sides of the body 11, so that when the body 11 needs to be moved, the operator can apply force to the body 11 through the two gripping members 13.

[0067] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A test apparatus for simulating rolling bearing failure, characterized in that, include: Base (1); The driving structure (2) includes a driving component (21) and a rotating component (22). The driving component (21) is disposed on the base (1), and one end of the rotating component (22) is connected to the driving end of the driving component (21). The fixing structure includes at least two fixing components (31), which are spaced apart on the base (1). Each fixing component (31) includes a fixing member (311) and at least two blocking members (312). The fixing member (311) is detachably connected to the base (1). The fixing member (311) has a fixing part (3111). The fixing parts (3111) on the two fixing members (311) are correspondingly arranged. The other end of the rotating member (22) is adapted to pass through the two fixing parts (3111) in sequence. The fixed part (3111) is adapted to install a bearing (7), and the bearing (7) is adapted to be sleeved on the rotating part (22) at one end away from the driving part (21) through the rotating part (22). The two blocking parts (312) are respectively arranged on both sides of the bearing (7) and are connected to the fixed part (311) to limit the bearing (7). The rotating member (22) has a connecting part (221) and a plurality of mounting parts (222) that are connected to the connecting part (221) at one end away from the driving member (21). It also includes a tightening structure (4), which is movably disposed between the connecting part (221) and the mounting part (222). Under the action of external force, the tightening structure (4) is adapted to abut against the inner ring of the bearing (7). The expansion structure (4) includes a connector (41) and a plurality of expansion members (42). The connector (41) is adapted to be inserted into the connecting part (221), and some of the connectors (41) are threadedly connected to the connecting part (221). Any one of the expansion members (42) is slidably disposed in a mounting part (222). Part of the outer surface of the connector (41) is set as a conical surface. When the expansion member (42) is installed in the mounting part (222), the expansion member (42) abuts against the conical surface so that under the action of external force, the connector (41) moves in the axial direction of the rotating member (22) in the connecting part (221), and drives all the expansion members (42) to move in the radial direction of the rotating member (22) in the mounting part (222) through the conical surface, and makes all the expansion members (42) abut against the inner ring of the bearing (7).

2. The test apparatus for simulating rolling bearing failure according to claim 1, characterized in that, The bearing (7) and the rotating part (22) are in clearance fit.

3. The test apparatus for simulating rolling bearing failure according to claim 2, characterized in that, The drive structure (2) further includes a brake (23), which is disposed on the drive member (21). The brake (23) is used to brake the drive end of the drive member (21) to limit the rotation of the drive end of the drive member (21).

4. The test apparatus for simulating rolling bearing failure according to claim 3, characterized in that, It also includes a control structure (5), which includes a control element (51) and a display element (52). The control element (51) is disposed on the base (1) and is electrically connected to the brake element (23) to control the opening and closing of the brake element (23). The display element (52) is disposed on the control element (51) and is electrically connected to the drive element (21) to display the rotational speed of the drive end of the drive element (21).

5. The test apparatus for simulating rolling bearing failure according to claim 4, characterized in that, It also includes a protective component (6), which has a protective cavity with an opening on one side. The opening end of the protective component (6) is adapted to cover the drive structure (2) and the fixed structure connected to the base (1) so that the drive structure (2) and the fixed structure are disposed in the protective cavity.

6. The test apparatus for simulating rolling bearing failure according to claim 5, characterized in that, The fixing member (311) is provided with a plurality of receiving portions (3112); it also includes a plurality of sensing elements, any one of the sensing elements being disposed in one of the receiving portions (3112), and the sensing element being adapted to sense the rotational speed of the bearing (7).

7. The test apparatus for simulating rolling bearing failure according to claim 6, characterized in that, The fastener (311) has an embedded part (3113) on each side that communicates with the fastener (3111), and the two blocking members (312) are respectively disposed in one of the embedded parts (3113).

8. The test apparatus for simulating rolling bearing failure according to claim 1, characterized in that, The base (1) includes a body (11), a number of support members (12) and at least two grip members (13). All the support members (12) are located on the same side of the body (11) and are connected to the body (11). The two grip members (13) are respectively connected to the two ends of the body (11).

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