CN219416688U - Experiment table for shaft bending fault detection - Google Patents

Abstract

The utility model discloses an experimental table for detecting shaft bending faults, which comprises a table body, detection columns arranged at the top of the table body, and transmission mechanisms arranged at two ends of the table body, wherein the detection columns comprise fixed rods, ejector rods arranged at the top of the fixed rods, rollers arranged at the top of the ejector rods, and detection rods arranged at the bottom of the ejector rods, and the detection columns are arranged in two rows and are respectively arranged at two sides of the bottom of a shaft body to be detected to support the shaft body to be detected; when the shaft body to be tested is bent, the pressure of the extrusion roller in the rotating process of the shaft body to be tested changes, so that the ejector rod at the corresponding position is pressed, the detection rod is driven to move, the detection rod is contacted with the acceleration sensor when moving, the acceleration sensor generates detection data, the detection data generated by the acceleration sensor is collected and processed through the acquisition gateway, and the technical effect of conveniently detecting all positions in the whole shaft body to be tested is achieved.

Description

Experiment table for shaft bending fault detection

Technical Field

The utility model relates to the field of shaft bending fault detection, in particular to a laboratory bench for shaft bending fault detection.

Background

The shaft bending fault is a fault with high probability of occurrence of equipment such as fans in steel plants, and is very serious in damage to the equipment such as fans, and if the equipment is not found in time, other faults are induced, so that serious production accidents are caused, and even casualties are caused. The vibration characteristics of the shaft bending fault are similar to those of the rotor unbalance, but if the reason of the shaft bending fault is known, the bending fault is found to have certain regularity, so that the probability of the fault can be found or avoided in time, and the accurate judgment of the degree of the fault is also beneficial to the solution. The system provides an acceleration sensor and a collection monitoring device for fan equipment, vibration states of a front shaft and a rear shaft of the fan are collected and analyzed in real time through the collection monitoring device, temporary or permanent bending faults are timely identified, an overhaul engineer is timely warned, measures are timely taken by the overhaul engineer, serious damage to the fan and other equipment caused by the temporary or permanent bending faults is avoided, and major production accidents and casualties are avoided.

The current technology for diagnosing the bending of the shaft mainly adopts the method of measuring the stress of the front shaft and the rear shaft of equipment such as a fan and the like, and when the stress is smaller than the elastic limit of materials, the generated bending is temporary; when greater than the elastic limit of the material, permanent bending occurs. The method has the defects that the equipment is stopped for inspection, or real-time monitoring and fault diagnosis are carried out by installing a stress sensor, each section of the shaft body is often required to be detected in the traditional detection process, the whole shaft body cannot be directly and rapidly detected, and the problem is solved, so that the experimental table for detecting the shaft bending fault is provided.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the experimental table for detecting the shaft bending faults, which has the technical effect of conveniently detecting all positions in the whole shaft body to be detected.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides an axle bending fault detection is with laboratory bench, includes the stage body, installs the detection post at the stage body top to and set up the drive mechanism at stage body both ends, the detection post includes the dead lever, installs the ejector pin at the dead lever top, installs the gyro wheel at the ejector pin top, and sets up the probing rod in the ejector pin bottom, the detection post sets up to two rows to divide to establish in the bottom both sides of the axis body that awaits measuring, support the axis body that awaits measuring.

As a preferable technical scheme of the utility model, the ejector rod is in sliding connection with the fixed rod, the ejector rod can translate up and down in the fixed rod, and the roller is in rotary connection with the top of the ejector rod.

As a preferable technical scheme of the utility model, a reset spring is nested outside the detection rod, the bottom of the detection rod is abutted with an acceleration sensor, and the bottom of the acceleration sensor is connected with an acquisition gateway.

As a preferable technical scheme of the utility model, the top of the return spring is abutted with the bottom surface of the ejector rod, and the bottom of the return spring is fixed with the bottommost part of the fixed rod.

As a preferable technical scheme of the utility model, the transmission mechanism comprises a support column, a locking plate arranged at the top of the support column, a transmission ring arranged at the inner side of the locking plate, a transmission gear clamped with the bottom of the transmission ring, and a transmission motor in belt transmission connection with the transmission gear.

As a preferable technical scheme of the utility model, an annular groove is arranged at the joint of the top of the support column and the locking plate, the transmission ring is clamped in the groove between the support column and the locking plate, and the transmission ring is nested at two ends of the shaft body to be tested.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, when the shaft body to be tested rotates, the shaft body to be tested is contacted with the roller, when the shaft body to be tested is bent, the pressure of the extrusion roller in the rotating process of the shaft body to be tested changes, so that the ejector rod at the corresponding position is pressed, the detection rod is driven to move, the shaft body to be tested is supported by the roller, the ejector rod moves along with the pressure of the roller, when the detection rod moves, the ejector rod is contacted with the acceleration sensor, the acceleration sensor generates detection data, and the detection data generated by the acceleration sensor is collected and processed through the acquisition gateway, so that the technical effect of conveniently detecting all positions in the whole shaft body to be tested is achieved;

2. according to the utility model, the ejector rod is jacked up by the reset spring, so that the ejector rod is automatically reset, the transmission gear is driven to rotate by the transmission motor, and then the transmission ring is driven to rotate by the transmission gear, so that the shaft body to be tested fixed in the transmission ring is rotated, and the transmission ring can be taken down by disassembling the locking plate, so that the shaft body to be tested is conveniently taken down, and the technical effects of convenient installation and taking down of the shaft body to be tested are achieved.

Drawings

FIG. 1 is a schematic diagram of the complete structure of the present utility model;

FIG. 2 is a front view block diagram of the present utility model;

FIG. 3 is a partial cross-sectional view of a detection column of the present utility model;

fig. 4 is a partial construction view of the transmission mechanism of the present utility model.

Wherein: 1. a table body; 2. a detection column; 3. a transmission mechanism; 21. a fixed rod; 22. a push rod; 23. a roller; 24. a detection rod; 25. a return spring; 26. an acceleration sensor; 27. collecting a gateway; 31. a support column; 32. a locking plate; 33. a drive ring; 34. a transmission gear; 35. and (5) a transmission motor.

Detailed Description

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained will become readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.

Examples:

as shown in fig. 1 to 4, an experimental table for detecting shaft bending faults comprises a table body 1, detection columns 2 arranged at the top of the table body 1, and transmission mechanisms 3 arranged at two ends of the table body 1, wherein the detection columns 2 comprise fixed rods 21, ejector rods 22 arranged at the top of the fixed rods 21, rollers 23 arranged at the top of the ejector rods 22, and detection rods 24 arranged at the bottom of the ejector rods 22, and the detection columns 2 are arranged in two rows and are respectively arranged at two sides of the bottom of a shaft body to be detected to support the shaft body to be detected; in the detection process, the shaft body to be detected is contacted with the roller 23 when rotating, when the shaft body to be detected is bent, the pressure of the shaft body to be detected for extruding the roller 23 in the rotation process is changed, so that the ejector rod 22 at the corresponding position is pressed, and the detection rod 24 is driven to move.

In other embodiments, the ejector rod 22 is slidably connected to the fixed rod 21, the ejector rod 22 can translate up and down in the fixed rod 21, and the roller 23 is rotatably connected to the top of the ejector rod 22; the shaft body to be measured is supported by the roller 23, and the jack 22 moves simultaneously with the pressure applied by the roller 23.

In other embodiments, a return spring 25 is nested outside the detection rod 24, the bottom of the detection rod 24 is abutted against an acceleration sensor 26, and the bottom of the acceleration sensor 26 is connected with an acquisition gateway 27, when the detection rod 24 moves, the detection rod is contacted with the acceleration sensor 26, the acceleration sensor 26 generates detection data, and the detection data generated by the acceleration sensor 26 is collected and processed through the acquisition gateway 27.

In other embodiments, the top of the return spring 25 abuts against the bottom surface of the ejector rod 22, and the bottom of the return spring 25 is fixed to the bottommost part of the fixing rod 21, and the ejector rod 22 is automatically reset by lifting up the ejector rod 22 by the return spring 25.

In other embodiments, the transmission mechanism 3 comprises a support column 31, a locking plate 32 arranged at the top of the support column 31, a transmission ring 33 arranged at the inner side of the locking plate 32, a transmission gear 34 clamped with the bottom of the transmission ring 33, and a transmission motor 35 in belt transmission connection with the transmission gear 34; the transmission motor 35 drives the transmission gear 34 to rotate, and the transmission gear 34 drives the transmission ring 33 to rotate, so that the shaft body to be tested fixed in the transmission ring 33 rotates.

In other embodiments, an annular groove is provided at the connection between the top of the support column 31 and the locking plate 32, the driving ring 33 is clamped in the groove between the support column 31 and the locking plate 32, and the driving ring 33 is nested at two ends of the shaft body to be tested, and the driving ring 33 can be removed by disassembling the locking plate 32, so that the shaft body to be tested can be conveniently removed.

The working principle of the utility model is as follows: when the shaft body to be tested rotates, the shaft body to be tested is contacted with the roller 23, when the shaft body to be tested is bent, the pressure of the shaft body to be tested, which is extruded by the roller 23 in the rotating process, changes, so that the ejector rod 22 at the corresponding position is pressed, the detection rod 24 is driven to move, the shaft body to be tested is supported by the roller 23, the ejector rod 22 moves along with the pressure of the roller 23, when the detection rod 24 moves, the shaft body to be tested is contacted with the acceleration sensor 26, the acceleration sensor 26 generates detection data, and the detection data generated by the acceleration sensor 26 is collected and processed by the acquisition gateway 27; the ejector rod 22 is jacked up through the reset spring 25, so that the ejector rod 22 is automatically reset, the transmission gear 34 is driven to rotate through the transmission motor 35, the transmission ring 33 is driven to rotate through the transmission gear 34, the shaft body to be tested fixed in the transmission ring 33 is enabled to rotate, the transmission ring 33 can be taken down through the disassembly of the locking plate 32, and the shaft body to be tested is conveniently taken down.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides an axle bending fault detection is with experiment table, includes stage body (1), installs detect post (2) at stage body (1) top to and set up drive mechanism (3) at stage body (1) both ends, its characterized in that: the detection column (2) comprises a fixed rod (21), a push rod (22) arranged at the top of the fixed rod (21), a roller (23) arranged at the top of the push rod (22) and a detection rod (24) arranged at the bottom of the push rod (22), wherein the detection column (2) is arranged in two rows and is respectively arranged at two sides of the bottom of the shaft body to be detected to support the shaft body to be detected.

2. The shaft bending failure detection laboratory bench according to claim 1, wherein: the ejector rod (22) is in sliding connection with the fixed rod (21), the ejector rod (22) can translate up and down in the fixed rod (21), and the roller (23) is in rotary connection with the top of the ejector rod (22).

3. The shaft bending failure detection laboratory bench according to claim 1, wherein: the outside of probe rod (24) nestification has reset spring (25), the bottom butt of probe rod (24) has acceleration sensor (26), and acceleration sensor (26) bottom is connected with collection gateway (27).

4. A shaft bending failure detection laboratory bench according to claim 3, wherein: the top of the return spring (25) is abutted with the bottom surface of the ejector rod (22), and the bottom of the return spring (25) is fixed with the bottommost part of the fixed rod (21).

5. The shaft bending failure detection laboratory bench according to claim 1, wherein: the transmission mechanism (3) comprises a support column (31), a locking plate (32) arranged at the top of the support column (31), a transmission ring (33) arranged at the inner side of the locking plate (32), a transmission gear (34) clamped with the bottom of the transmission ring (33), and a transmission motor (35) in belt transmission connection with the transmission gear (34).

6. The shaft bending failure detection laboratory bench according to claim 5, wherein: the connection part of the top of the support column (31) and the locking plate (32) is provided with an annular groove, the transmission ring (33) is clamped in the groove between the support column (31) and the locking plate (32), and the transmission ring (33) is nested at two ends of the shaft body to be tested.