Detection device for rotor shaft

Abstract

The utility model belongs to the technical field of detection devices, and particularly relates to a detection device for a rotor shaft, which comprises two symmetrically-arranged supporting assemblies, and each supporting assembly comprises a supporting plate, a pair of roller supports arranged on the supporting plate and rollers connected with the roller supports through bearings; the two pairs of rollers are suitable for supporting and allowing the rotor shaft to rotate on the rollers; the laser displacement sensor is arranged between the two supporting assemblies, located under the rotor shaft and used for obtaining jumping data of the rotor shaft in the rotating process; the display lamp is arranged between the two supporting assemblies; the main control module is electrically connected with the laser displacement sensor and the display lamp; according to the detection device for the rotor shaft, when the rotor shaft rotates on the two pairs of rollers, the master control module obtains the jumping data uploaded by the laser displacement sensor and judges the jumping data, so that the display lamp is controlled to be turned on when the jumping of the rotor shaft exceeds a preset value, and therefore, the measurement precision is improved, an operator can conveniently and quickly judge the jumping data, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to detection device technical field, concretely relates to a detection device for rotor shaft. BACKGROUND

[0002] Rotor shaft is an important part of motor or generator, and the size precision detection, geometry detection, runout detection, surface quality detection, material performance detection and material performance detection of the processed rotor shaft are crucial to the operation effect of the whole equipment.

[0003] In the production process of rotor shaft, the detection of round runout is one of the key links to ensure product quality, and the traditional detection method has certain defects. Usually, the round runout detection of rotor shaft is measured manually on a machine tool, which requires the operator to frequently debug, not only complicated operation, but also a lot of time, resulting in extremely low detection efficiency. At the same time, during the installation of the testing instrument, due to the complex environment of the machine tool, there is a certain safety risk, which may cause harm to the operator. In addition, due to the influence of machine tool processing state, temperature change and installation and other factors, the measured data often has large difference and error, which is difficult to accurately reflect the real round runout of the rotor shaft.

[0004] Therefore, in order to solve the above problems, it is necessary to design a detection device for rotor shaft. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a detection device for rotor shaft, which solves the technical problems of complicated detection and error detection data.

[0006] In order to solve the above technical problems, the utility model provides a detection device for rotor shaft, which comprises:

[0007] Two symmetrical support assemblies, which comprise: a support plate, a pair of roller supports arranged on the support plate and rollers bearing connected with the roller supports; wherein

[0008] Two pairs of the rollers are adapted to support and allow the rotor shaft to rotate on each roller;

[0009] A laser displacement sensor is arranged between the two support assemblies and located directly below the rotor shaft, which is used to obtain the runout data of the rotor shaft during rotation;

[0010] A display lamp is arranged between the two support assemblies;

[0011] A main control module is electrically connected with the laser displacement sensor and the display lamp; wherein

[0012] When the rotor shaft rotates on the two pairs of rollers, the main control module acquires the run-out data uploaded by the laser displacement sensor and judges to control the display lamp to light up when the rotor shaft run-out exceeds the preset value.

[0013] Further, the support plate is provided with a plurality of first through holes arranged at equal intervals;

[0014] The roller support is provided with four second through holes arranged at equal intervals; wherein

[0015] The four second through holes are concentrically arranged with the corresponding first through holes;

[0016] The roller support and the support plate are connected by bolts to adjust the distance between the two roller supports, so that the two rollers support the rotor shafts of different diameters.

[0017] Further, the support assembly further comprises a support frame arranged at the bottom of the support plate;

[0018] A plurality of telescopic members are arranged between the two support frames; wherein

[0019] The telescopic member is adapted to adjust the distance between the two support frames when telescoping.

[0020] Further, the telescopic member comprises an inner tube and an outer tube sleeved on the inner tube; wherein

[0021] One end of the inner tube is connected with any support frame;

[0022] One end of the outer tube is connected with the other support frame; and

[0023] The inner tube and the outer tube are slidingly connected;

[0024] The display lamp is arranged on the outer tube located at the highest position;

[0025] A plurality of third through holes are arranged at equal intervals on the inner tube;

[0026] A plurality of fourth through holes are arranged at equal intervals on the outer tube;

[0027] The corresponding third through hole and the corresponding fourth through hole are concentrically arranged;

[0028] The inner tube and the outer tube are locked by the bolts passing through the corresponding third through hole and the corresponding fourth through hole, so as to be fixed in extension between the inner tube and the outer tube.

[0029] Further, the support frame is provided with a plurality of fifth through holes arranged at equal intervals;

[0030] Two guide rods are arranged between the two support frames; wherein

[0031] The two guide rods are slidably connected to two adjacent fifth through holes on the two support frames;

[0032] The outer sides of the two guide rods are sleeved with a same sliding block;

[0033] The slider is adapted to slide on the two guide rods; and

[0034] The laser displacement sensor is arranged on the top of the slider.

[0035] The beneficial effects of the utility model are:

[0036] (1) Place the rotor shaft on two pairs of rollers and rotate the rotor shaft manually. The laser displacement sensor measures the vibration data of the rotor shaft in real time during the rotation process and transmits the data to the main control module. The main control module judges the received vibration data and compares it with the preset vibration threshold. Based on the judgment result, the main control module controls the on and off state of the display light to intuitively display the detection result. By using the laser displacement sensor for non-contact measurement, the friction and interference in the measurement process are reduced, and the measurement accuracy is improved; the display light is used to intuitively display the detection results, which is convenient for the operator to quickly judge the vibration of the rotor shaft and improve the detection efficiency.

[0037] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0040] Figure 1 It is a perspective view of a preferred embodiment of a part of the utility model;

[0041] Figure 2 It is a perspective view of a preferred embodiment of the entirety of the present invention;

[0042] Figure 3 yes Figure 2 A partial enlarged view of area A in the middle.

[0043] In the picture:

[0044] Support assembly 1, support plate 101, first through hole 1011, roller bracket 102, second through hole 1021, roller 103, support frame 104, fifth through hole 1041;

[0045] Laser displacement sensor 2, display light 3;

[0046] Telescopic member 4, inner tube 401, third through hole 4011, outer tube 402, fourth through hole 4021;

[0047] Guide rod 5, slider 6. DETAILED DESCRIPTION

[0048] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention. Example 1

[0049] like Figures 1 to 3 As shown, this embodiment provides a rotor shaft detection device, comprising:

[0050] Two symmetrically arranged support components 1 include: a support plate 101, a pair of roller brackets 102 arranged on the support plate 101 and rollers 103 connected to the roller brackets 102 bearings; wherein the two pairs of rollers 103 are suitable for supporting and allowing the rotor shaft to rotate on each roller 103; a laser displacement sensor 2 is arranged between the two support components 1 and is located directly below the rotor shaft, for obtaining the vibration data of the rotor shaft during rotation; a display light 3 is arranged between the two support components 1; a main control module is electrically connected to the laser displacement sensor 2 and the display light 3; wherein when the rotor shaft rotates on the two pairs of rollers 103, the main control module obtains the vibration data uploaded by the laser displacement sensor 2 and makes a judgment to control the display light 3 to light up when the rotor shaft vibration exceeds a preset value; wherein the main control module adopts but is not limited to PLC; wherein the display light 3 adopts but is not limited to a three-color light.

[0051] In this embodiment, the rotor shaft is placed on two pairs of rollers 103 and manually rotated. The laser displacement sensor 2 measures the vibration data of the rotor shaft during the rotation process in real time and transmits the data to the main control module. The main control module judges the received vibration data and compares it with the preset vibration threshold. According to the judgment result, the main control module controls the on and off state of the display light 3 to intuitively display the detection result. By using the laser displacement sensor 2 for non-contact measurement, friction and interference in the measurement process are reduced, and the measurement accuracy is improved; the display light 3 is used to intuitively display the detection results, which is convenient for the operator to quickly judge the vibration of the rotor shaft and improve the detection efficiency.

[0052] The support plate 101 is provided with a plurality of first through holes 1011 arranged in an equidistant array; the roller bracket 102 is provided with four second through holes 1021 arranged in an equidistant array; wherein the four second through holes 1021 are arranged concentrically with the corresponding first through holes 1011; the roller bracket 102 and the support plate 101 are connected by bolts to adjust the spacing between the two roller brackets 102 so that the two rollers 103 support rotor shafts of different diameters; wherein the bolts and nuts are not shown in the figure; wherein by setting a plurality of equidistant arrays The first through hole 1011 is provided to provide different installation positions for the roller bracket 102; the second through hole 1021 is provided and is concentrically arranged with the corresponding first through hole 1011 to facilitate the fixation of the roller bracket 102 and the support plate 101; and the plurality of first through holes 1011 arranged in an equidistant array and the four second through holes 1021 arranged in an equidistant array are provided to facilitate adjustment of the spacing of the roller bracket 102 to accommodate rotor shafts of different diameters, so that the detection device can be used for detecting rotor shafts of various specifications.

[0053] The support assembly 1 also includes: a support frame 104 arranged at the bottom of the support plate 101; a plurality of telescopic parts 4 are provided between the two support frames 104; wherein the telescopic parts 4 are suitable for adjusting the distance between the two support frames 104 during telescoping; wherein the telescopic parts 4 adopt a telescopic mechanism such as but not limited to a hydraulic cylinder, a pneumatic cylinder or an electric push rod; wherein by providing the telescopic parts 4, the stability of the two support assemblies 1 is improved; by providing the telescopic parts 4, the distance between the two pairs of rollers 103 is adjusted to adapt to the detection of rotor shafts of different lengths.

[0054] The telescopic part 4 comprises an inner tube 401 and an outer tube 402 sleeved on the inner tube 401; one end of the inner tube 401 is connected with any support frame 104; one end of the outer tube 402 is connected with the other support frame 104; and the inner tube 401 and the outer tube 402 are slidingly connected; the display lamp 3 is arranged on the outer tube 402 at the highest position; a plurality of third through holes 4011 are arranged at equal intervals on the inner tube 401; a plurality of fourth through holes 4021 are arranged at equal intervals on the outer tube 402; the corresponding third through holes 4011 and the corresponding fourth through holes 4021 are concentrically arranged; the inner tube 401 and the outer tube 402 are fixed in extension between them by each bolt passing through the corresponding third through hole 4011 and the corresponding fourth through hole 4021, so as to be fixed in extension between the inner tube 401 and the outer tube 402; wherein the bolt and the nut are not shown in the figure; through the sliding connection of the inner tube 401 and the outer tube 402 and the locking mechanism of fixing the inner tube 401 and the outer tube 402 after the bolt passing through the third through hole 4011 and the fourth through hole 4021, the structure is simple and the cost is low, and the distance between the two pairs of rollers 103 can be conveniently adjusted to adapt to the detection of rotors of different lengths; by arranging the display lamp 3 on the outer tube 402 at the highest position, intuitive visual indication is provided to facilitate the operator to quickly judge the runout of the rotor shaft.

[0055] The support frame 104 is provided with a plurality of fifth through holes 1041 arranged at equal intervals; two guide rods 5 are arranged between the two support frames 104; wherein the two guide rods 5 are slidingly connected with two adjacent fifth through holes 1041 on the two support frames 104; the same sliding block 6 is sleeved on the outer side of the two guide rods 5; wherein the sliding block 6 is adapted to slide on the two guide rods 5; and the laser displacement sensor 2 is arranged on the top of the sliding block 6; wherein through the sliding connection of the fifth through hole 1041 and the guide rod 5, when the distance between the two support frames 104 is adjusted, the guide rod 5 is still connected with the two support frames 104, when the distance between the two support frames 104 is close, the guide rod 5 protrudes out of the support frame 104 for a long distance at both ends, when the distance between the two support frames 104 is far, the guide rod 5 protrudes out of the support frame 104 for a short distance at both ends, so as not to affect the normal sliding of the sliding block 6 on the guide rod 5; by arranging two guide rods 5, the sliding block 6 is limited, and the sliding block 6 is prevented from rotating around a single guide rod 5; wherein by arranging the laser displacement sensor 2 on the top of the sliding block 6, the laser displacement sensor 2 can conveniently measure the runout at different positions of the rotor shaft, so as to achieve the effect of more accurate detection results.

[0056] Each device (parts not described in detail) selected in the present application is a general standard part or a part known to those skilled in the art, and its structure and principle can be known by technical personnel through a technical manual or through a conventional experimental method.

[0057] In the description of the embodiments of the utility model, unless another definite provision and limitation, the term " install " " link " " connection " should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can indirectly connect through the intermediate medium, can be the intercommunication of two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0058] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0059] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. The device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, and for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some communication interfaces, devices or units, and can be electrical, mechanical or other forms.

[0060] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, i.e. they can be located in one place or distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0061] In addition, the functional units in each embodiment of the utility model can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit.

[0062] With the above ideal embodiment of the present application as the inspiration, through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A rotor shaft detection device, characterized in that: include: Two symmetrically arranged support assemblies (1) comprise: a support plate (101), a pair of roller brackets (102) arranged on the support plate (101), and rollers (103) connected to the roller brackets (102) bearings; wherein The two pairs of rollers (103) are suitable for supporting and allowing the rotor shaft to rotate on each roller (103); A laser displacement sensor (2) is arranged between the two support assemblies (1) and is located directly below the rotor shaft, and is used to obtain vibration data of the rotor shaft during rotation; A display light (3) is arranged between the two support assemblies (1); The main control module is electrically connected to the laser displacement sensor (2) and the display light (3); wherein When the rotor shaft rotates on the two pairs of rollers (103), the main control module obtains the vibration data uploaded by the laser displacement sensor (2) and makes a judgment to control the display light (3) to light up when the rotor shaft vibration exceeds a preset value.

2. The rotor shaft detection device according to claim 1, wherein: The support plate (101) is provided with a plurality of first through holes (1011) arranged in an equidistant array; The roller bracket (102) is provided with four second through holes (1021) arranged in an equidistant array; wherein The four second through holes (1021) are arranged concentrically with the corresponding first through holes (1011); The roller bracket (102) and the support plate (101) are connected via bolts to adjust the distance between the two roller brackets (102) so that the two rollers (103) can support rotor shafts with different diameters.

3. The rotor shaft detection device according to claim 2, wherein: The support assembly (1) further comprises: a support frame (104) arranged at the bottom of the support plate (101); A plurality of telescopic members (4) are provided between the two support frames (104); wherein The telescopic member (4) is suitable for adjusting the distance between the two support frames (104) during telescoping.

4. The rotor shaft detection device according to claim 3, wherein: The telescopic member (4) comprises an inner tube (401) and an outer tube (402) sleeved on the inner tube (401); wherein One end of the inner tube (401) is connected to any support frame (104); One end of the outer tube (402) is connected to another support frame (104); and The inner tube (401) and the outer tube (402) are slidably connected; The display light (3) is arranged on the outer tube (402) located at the highest point; The inner tube (401) is provided with a plurality of third through holes (4011) arranged at equal intervals; The outer tube (402) is provided with a plurality of fourth through holes (4021) arranged at equal intervals; The corresponding third through hole (4011) and the corresponding fourth through hole (4021) are arranged concentrically; The inner tube (401) and the outer tube (402) are locked by bolts passing through the corresponding third through holes (4011) and the corresponding fourth through holes (4021), so that the inner tube (401) and the outer tube (402) are telescopically fixed.

5. The rotor shaft detection device according to claim 4, wherein: The support frame (104) is provided with a plurality of fifth through holes (1041) arranged at equal intervals; Two guide rods (5) are provided between the two support frames (104); wherein The two guide rods (5) are slidably connected to two adjacent fifth through holes (1041) on the two support frames (104); The outer sides of the two guide rods (5) are sleeved with a same sliding block (6); wherein The slider (6) is adapted to slide on the two guide rods (5); and The laser displacement sensor (2) is arranged on the top of the slider (6).

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