Device for detecting static balance of rotor

Abstract

The utility model relates to a rotor static balance detection device, which comprises a bottom plate, two supporting seats, two bearing seats, four rolling assemblies, a mandrel and two tensioning sleeves, the two supporting seats are fixedly arranged on the bottom plate, the two bearing seats are respectively arranged on the two supporting seats, the rolling assemblies are arranged in the two bearing seats in pairs, and the four rolling assemblies are arranged on the mandrel. The two ends of the mandrel are supported by the two rolling assemblies respectively, the mandrel is connected with a workpiece to be tested through the locking nut, and the two tensioning sleeves are installed at the two ends, connected with the workpiece to be tested, of the mandrel respectively. The rotor static balance detection device can be used for static balance detection of rotors of the same type and length series, is simple, convenient and practical to operate, can detect and screen out rotors which do not meet balance requirements, reduces instability after assembly and machine testing, and improves product quality of a whole machine.

Description

Technical Field

[0001] This utility model relates to the field of rotor static balance testing, and specifically to a device for rotor static balance testing. Background Technology

[0002] During the manufacturing and installation of rotor components in rotating machinery, uneven material distribution, machining errors, and assembly errors can lead to unbalanced mass in the rotor. During rotor rotation, this unbalanced mass causes vibration and noise, severely impacting the safety and reliability of the rotating machinery. Therefore, rotor components for rotating machinery require static balancing tests. However, existing static balancing testing devices are complex to operate, unstable after assembly and testing, and can only be used with fixed rotor models, resulting in limited practicality and poor product quality. Utility Model Content

[0003] To address the technical problems existing in the prior art, this utility model provides a device for detecting rotor static balance.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A rotor static balance testing device includes a base plate, two support seats, two bearing seats, four rolling assemblies, a mandrel, and two tensioning sleeves. The two support seats are fixedly mounted on the base plate, and the two bearing seats are respectively mounted on the two support seats. The rolling assemblies are installed in pairs in the two bearing seats. The two ends of the mandrel are each supported by two rolling assemblies. The mandrel is connected to the workpiece to be tested through a lock nut. The two tensioning sleeves are respectively installed at the two ends of the mandrel connected to the workpiece to be tested.

[0006] As a preferred technical solution, the base plate is provided with multiple mounting screw holes, and the bottom of the support base is provided with multiple pin holes. The bottom of the support base is fixed to the base plate by screws passing through the pin holes and mounting screw holes.

[0007] As a preferred technical solution, the support base includes two horizontal steel plates and three vertical steel plates arranged at equal intervals. The horizontal steel plates and the vertical steel plates are connected by welding, and the upper and lower ends of the two outer vertical steel plates are fixedly connected to the ends of the upper and lower horizontal steel plates, respectively.

[0008] As a preferred technical solution, the upper horizontal steel plate is fixedly connected to the bearing housing by hexagon socket bolts, and the bearing housing is provided with threaded holes that match the threads of the hexagon socket bolts.

[0009] As a preferred technical solution, the rolling assembly includes a fixed pad, a fixed shaft, a bearing sleeve, a rolling bearing, and a fixed cover plate. The fixed shaft is fixedly connected to the bearing housing through the fixed pad. The inner ring of the rolling bearing is fixed on the fixed shaft. The bearing sleeve is installed on the outer ring of the rolling bearing. The outer surface of the bearing sleeve is in contact with the spindle. The fixed cover plate is fixedly connected to the fixed shaft by bolts and is used to fix the outer ring side plane of the rolling bearing on the rolling assembly.

[0010] As a preferred technical solution, the mandrel is assembled and connected to the center hole of the workpiece to be tested. The two ends of the mandrel connected to the workpiece to be tested are tightened and positioned by tensioning sleeves. After the mandrel is locked by a lock nut, it is placed on the rolling assembly to rotate in order to detect the static balance of the workpiece to be tested.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model discloses a rotor static balance testing device, which can be used for static balance testing of rotors of the same type but different lengths. It is simple and practical to operate. The device can detect and screen out rotors that do not meet the balance requirements, reduce instability after assembly and trial operation, and improve the overall product quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the disassembled structure of the rotor static balance testing device of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the rotor static balance testing device of this utility model;

[0015] Figure 3 This is a diagram showing the usage status of the rotor static balance testing device of this utility model.

[0016] In the figure: 1. Base plate; 2. Support seat; 3. Bearing seat; 4. Rolling assembly; 41. Fixing pad; 42. Fixing shaft; 43. Bearing sleeve; 44. Rolling bearing; 45. Fixing cover plate; 5. Mandrel; 6. Locking nut; 7. Tensioning sleeve; 8. Workpiece to be tested. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to specific embodiments:

[0018] like Figure 2As shown, a rotor static balance testing device includes a base plate 1, two support seats 2, two bearing seats 3, four rolling assemblies 4, a spindle 5, and two tensioning sleeves 7. The two support seats 2 are fixedly installed on the base plate 1, the two bearing seats 3 are respectively installed on the two support seats 2, the rolling assemblies 4 are installed in pairs in the two bearing seats 3, the two ends of the spindle 5 are each supported by two rolling assemblies 4, the spindle 5 is connected to the workpiece 8 to be tested through locking nuts 6, and the two tensioning sleeves 7 are respectively installed at the two ends of the spindle 5 connected to the workpiece 8 to be tested.

[0019] The base plate 1 has multiple mounting screw holes to accommodate different installation positions of the support base 2. The support base 2 includes two horizontal steel plates (upper and lower) and three vertical steel plates arranged at equal intervals. The horizontal and vertical steel plates are connected by welding, and the upper and lower ends of the two outer vertical steel plates are fixedly connected to the ends of the upper and lower horizontal steel plates, respectively.

[0020] In this embodiment, the lower horizontal steel plate has two pin holes and six mounting holes. The lower horizontal steel plate is fixed to the base plate 1 by locating pins passing through the pin holes and screws passing through the mounting holes. The mounting screw holes have threads that match the screws. The upper horizontal steel plate has two locating pin holes and two mounting screw holes. The upper horizontal steel plate is fixedly connected to the bearing housing 3 by hexagonal socket head cap screws. The bearing housing 3 has two locating pin holes and two mounting screw holes corresponding to the upper horizontal steel plate. The locating pins and hexagonal socket head cap screws pass through the locating pin holes and the threaded mounting holes, respectively.

[0021] The distance between the two support bases 2 can be adjusted by the mounting position on the base plate 1 to accommodate rotors of different lengths.

[0022] like Figure 1 As shown, the rolling assembly 4 includes a fixed pad 41, a fixed shaft 42, a bearing sleeve 43, a rolling bearing 44, and a fixed cover plate 45. The fixed shaft 42 is fixedly connected to the bearing housing 3 through the fixed pad 41. The inner ring of the rolling bearing is fixed on the fixed shaft 42. The bearing sleeve 43 is installed on the outer ring of the rolling bearing. The outer surface of the bearing sleeve 43 is in contact with the spindle 5. The fixed cover plate 45 is fixedly connected to the fixed shaft 42 by bolts and is used to fix the outer ring side plane of the rolling bearing 44 on the rolling assembly 4.

[0023] like Figure 3 As shown, the mandrel 5 is assembled and connected to the center hole of the workpiece 8 to be tested. The two ends of the mandrel 5 connected to the workpiece 8 are tightened and positioned by the tensioning sleeve 7, which plays a role in accurately positioning the mandrel 5 and the center hole of the workpiece 8. After being locked by the locking nut 6, the mandrel 5 is placed on the rolling assembly 4 and rotated to detect the static balance of the workpiece 8 to be tested.

[0024] This embodiment is merely a further explanation of the present invention and is not intended to limit the present invention. Those skilled in the art can make non-creative modifications to this embodiment as needed after reading this specification, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A rotor static balancing detection device, characterized by, The utility model provides a kind of static balance testing device, including bottom plate, two support seats, two bearing seats, four rolling assemblies, a mandrel and two expansion sleeves, two support seats are fixedly installed on bottom plate, two bearing seats are respectively installed on two support seats, the rolling assembly is installed in two bearing seats two by two, the both ends of the mandrel are supported by two rolling assemblies respectively, the mandrel is connected with the workpiece to be measured by lock nut, two expansion sleeves are respectively installed in the both ends of the mandrel connected with the workpiece to be measured.

2. The apparatus for detecting static balance of a rotor according to claim 1, wherein A plurality of mounting screw holes are provided on the bottom plate, and a plurality of pin holes are provided on the bottom of the support seat.

3. The apparatus for detecting static balance of a rotor according to claim 1, wherein The support seat includes two horizontal steel plates and three vertical steel plates arranged at equal intervals, the horizontal steel plates are connected with the vertical steel plates by welding, and the two ends of the two vertical steel plates on the outer side are fixedly connected with the end portions of the two horizontal steel plates.

4. The apparatus for detecting static balance of a rotor according to claim 3, wherein The upper horizontal steel plate is fixedly connected with the bearing seat by an inner hexagonal bolt, and the bearing seat is provided with a threaded hole matched with the inner hexagonal bolt.

5. The apparatus for detecting static balance of a rotor according to claim 1, wherein The rolling assembly includes a fixed pad, a fixed shaft, a bearing sleeve, a rolling bearing and a fixed cover plate, the fixed shaft is fixedly connected with the bearing seat by the fixed pad, the inner ring of the rolling bearing is fixed on the fixed shaft, the bearing sleeve is installed on the outer ring of the rolling bearing, the outer surface of the bearing sleeve is in contact with the mandrel, and the fixed cover plate is fixedly connected with the fixed shaft by a bolt to fix the outer ring side plane of the rolling bearing on the rolling assembly.

6. The apparatus for detecting static balance of a rotor according to claim 1, wherein The mandrel is assembled and connected with the center hole of the workpiece to be measured, the both ends of the mandrel connected with the workpiece to be measured are positioned by the expansion sleeve, and the mandrel is locked by the lock nut and then rotated on the rolling assembly to detect the static balance of the workpiece to be measured.

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