Tight force detection mechanism and detection method for inner bearing bush of steam turbine shaft

Abstract

The application discloses a kind of steam turbine bearing inner bearing bush tight force detection mechanism and detection method, including base, the shorter side of the base one side is equipped with support plate, the center of the support plate and close to the one side of base is equipped with bearing inner shaft fixed extrusion mechanism, the both sides of the bearing inner shaft fixed extrusion mechanism and located on support plate is equipped with bearing outer shaft extrusion mechanism, the top of the bearing inner circumference frame fixed mechanism is equipped with detection mechanism for detecting bearing, by mechanical intelligent detection instead of manual detection, so that its not only greatly improve the effect of detection, and the efficiency of detection is greatly improved, higher accuracy.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coil punching, in particular to a turbine bearing inner bush tightness detection mechanism and detection method. BACKGROUND

[0002] The prior art lacks a turbine bearing inner bush tightness detection mechanism, so that it needs to be detected manually, which not only has poor detection effect, but also the detected data is not very accurate. SUMMARY

[0003] The present application relates to the technical field of coil punching, in particular to a turbine bearing inner bush tightness detection mechanism and detection method.

[0004] To achieve the above object, the present application provides the following technical scheme: a turbine bearing inner bush tightness detection mechanism, comprising a base, one side of the shorter edge of the base is provided with a support plate, the center of the support plate and the side close to the base are provided with a bearing inner shaft fixed extrusion mechanism, both sides of the bearing inner shaft fixed extrusion mechanism and on the support plate are provided with a bearing outer shaft extrusion mechanism, and the upper side of the bearing inner shaft fixed mechanism is provided with a detection mechanism for detecting the bearing.

[0005] As a preferred scheme of the present application, the bearing inner shaft fixed extrusion mechanism comprises a support pipe arranged at the center of one side of the support plate, a plurality of fixed collars are arranged on the outer circumferential wall of the support pipe, four first hydraulic cylinders are arranged on the outer circumferential wall of the fixed collar and the output end of each first hydraulic cylinder is arranged towards the outside, a first pressure sensor is arranged at the output end of each first hydraulic cylinder, and an extrusion block is arranged on the side away from the first pressure sensor of each first pressure sensor.

[0006] As a preferred scheme of the present application, the support pipe and the support plate are connected by bolts, the inner circumferential wall of the support pipe and the fixed collar are fixedly connected, the outer circumferential wall of the fixed collar and the non-output end of the first hydraulic cylinder are connected by bolts, the output end of the first hydraulic cylinder and the first pressure sensor are connected by bolts, the first pressure sensor and the extrusion block are connected by bolts, and the four extrusion blocks are arranged in a circular ring shape after the first hydraulic cylinder is completely retracted.

[0007] As a preferred scheme of the present application, the bearing outer shaft extrusion mechanism comprises a first sliding rail arranged on both sides of the bearing inner shaft fixed extrusion mechanism and connected with the support plate, a first stepping motor is arranged on the outer side of each first sliding rail, a second hydraulic cylinder with the output end towards the inner side is arranged on the inner side of each first sliding sleeve, a second pressure sensor is arranged on the output end of the second hydraulic cylinder, an extrusion semicircular sleeve is arranged on the other end of the second pressure sensor, and a first limiting plate is arranged on the side away from the support plate of the first sliding rail.

[0008] As a preferred scheme of the present application, the first slide rail is connected with the support plate by bolts, the first slide sleeve is connected with the first stepper motor by bolts, and a pulley that slides back and forth on the first slide rail is arranged at the output end of the first stepper motor, the first slide sleeve is connected with the non-output end of the second hydraulic cylinder by bolts, the output end of the second hydraulic cylinder is connected with the second pressure sensor by bolts, the second pressure sensor is connected with the semicircular extrusion sleeve by bolts, and the two semicircular extrusion sleeves are circular in shape when they are folded.

[0009] As a preferred scheme of the present application, the detection mechanism comprises a second slide rail arranged above the bearing inner shaft extrusion fixing extrusion mechanism and connected with the support plate, a second slide sleeve is arranged on the second slide rail, a second stepper motor is arranged at the top end of the second slide sleeve, a detection scanning camera is arranged at the bottom of the second slide sleeve, and a second limiting plate is arranged at the end of the second slide rail away from the support plate.

[0010] As a preferred scheme of the present application, the second slide rail is connected with the support plate by bolts, the second slide sleeve is connected with the second stepper motor by bolts, and a pulley that slides back and forth on the second slide rail is arranged at the output end of the second stepper motor.

[0011] As a preferred scheme of the present application, the support plate is provided with a PLC controller on the side away from the bearing inner shaft extrusion fixing extrusion mechanism, and a display screen and a plurality of operation buttons are arranged on the PLC controller.

[0012] A turbine bearing inner shaft bushing tightness detection method comprises the following steps:

[0013] S1: First, prepare a plurality of bearing sleeves to be detected;

[0014] S2: Place the prepared bearing sleeves on the outer circumferential wall of the extrusion block, and control the detection mechanism by the PLC controller;

[0015] S3: Stretch and start the first hydraulic cylinder, then drive the first stepper motor to move on the first slide rail to the two sides of the started first hydraulic cylinder through the first slide sleeve, and then start the second hydraulic cylinder to extrude the outside thereof simultaneously;

[0016] S4: At the same time, drive the second slide sleeve to move to the extrusion position on the second slide rail by the second stepper motor;

[0017] S5: The deformation condition can be detected by the detection scanning camera.

[0018] Beneficial effects: in the present application, by setting the bearing inner shaft fixed extrusion mechanism, the bearing outer shaft extrusion mechanism and the detection mechanism, the problems that the existing technology lacks the steam turbine bearing inner bushing tight force detection mechanism, the artificial detection is needed, the detection effect is poor, and the detection data is not very accurate are solved, the mechanical intelligent detection is used to replace the artificial detection, the detection effect is greatly improved, the detection efficiency is greatly improved, and the accuracy is higher. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional view of the steam turbine bearing inner bushing tight force detection mechanism of the present application Figure 1 ;

[0020] Figure 2 It is a three-dimensional view of the steam turbine bearing inner bushing tight force detection mechanism of the present application Figure 2 ;

[0021] Figure 3 It is a three-dimensional view of the bearing inner shaft fixed extrusion mechanism of the steam turbine bearing inner bushing tight force detection mechanism of the present application;

[0022] Figure 4 It is a three-dimensional view of the bearing outer shaft extrusion mechanism of the steam turbine bearing inner bushing tight force detection mechanism of the present application;

[0023] Figure 5 It is a second hydraulic cylinder schematic view of the steam turbine bearing inner bushing tight force detection mechanism of the present application;

[0024] Figure 6 It is a three-dimensional view of the detection mechanism of the steam turbine bearing inner bushing tight force detection mechanism of the present application.

[0025] In the figure: 1, base; 2, support plate; 3, bearing inner shaft fixed extrusion mechanism; 301, support pipe; 302, fixed sleeve ring; 303, first hydraulic cylinder; 304, first pressure sensor; 305, extrusion block; 4, bearing outer shaft extrusion mechanism; 401, first slide rail; 402, first slide sleeve; 403, first stepper motor; 404, second hydraulic cylinder; 405, second pressure sensor; 406, semicircular extrusion sleeve; 407, limit plate; 5, detection mechanism; 501, second slide rail; 502, second slide sleeve; 503, second stepper motor; 504, detection scanning camera; 505, second limit plate; 6, PLC controller. DETAILED DESCRIPTION

[0026] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0027] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Several embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0030] Please refer to Figures 1-6 The present application provides a technical solution: a turbine bearing inner bush tight force detection mechanism, including a base 1, the shorter side of the base 1 is provided with a support plate 2, the center of the support plate 2 and close to the side of the base 1 is provided with a bearing inner shaft fixed extrusion mechanism 3, both sides of the bearing inner shaft fixed extrusion mechanism 3 and on the support plate 2 is provided with a bearing outer shaft extrusion mechanism 4, the upper side of the bearing inner shaft fixed mechanism 3 is provided with a detection mechanism 5 for detecting the bearing.

[0031] Embodiment, please refer to Figure 1 , Figure 2 and Figure 3The bearing inner shaft fixed extrusion mechanism 3 comprises a support pipe 301 arranged at the center of one side of the support plate 2, a plurality of fixed collars 302 are arranged on the outer circumferential wall of the support pipe 301, four first hydraulic cylinders 303 are arranged on the outer circumferential wall of the fixed collar 302 and are uniformly distributed and have output ends arranged towards the outside, a first pressure sensor 304 is arranged at the output end of each first hydraulic cylinder 303, an extrusion block 305 is arranged on the side of each first pressure sensor 304 away from the first pressure sensor 304, the support pipe 301 and the support plate 2 are connected by bolts, the inner circumferential wall of the support pipe 301 and the fixed collar 302 are fixedly connected, the outer circumferential wall of the fixed collar 302 and the non-output end of the first hydraulic cylinder 303 are connected by bolts, the output end of the first hydraulic cylinder 303 and the first pressure sensor 304 are connected by bolts, the first pressure sensor 304 and the extrusion block 305 are connected by bolts, and the four extrusion blocks 305 are arranged in a circular ring shape after the first hydraulic cylinder 303 is completely retracted.

[0032] Embodiment, please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 The bearing outer shaft extrusion mechanism 4 comprises a first sliding rail 401 arranged on both sides of the bearing inner shaft fixed extrusion mechanism 3 and connected with the support plate 1, a first stepping motor 403 is arranged outside each first sliding rail 401, a second hydraulic cylinder 404 with an output end arranged towards the inside is arranged on the inner side of each first sliding sleeve 402, a second pressure sensor 405 is arranged at the output end of the second hydraulic cylinder 404, an extrusion half-round sleeve 406 is arranged at the other end of the second pressure sensor 405, a first limiting plate 407 is arranged on the side of the first sliding rail 401 away from the support plate 2, the first sliding rail 401 and the support plate 1 are connected by bolts, the first sliding sleeve 402 and the first stepping motor 403 are connected by bolts, and a pulley that slides back and forth on the first sliding rail 401 is arranged at the output end of the first stepping motor 403, the first sliding sleeve 402 and the non-output end of the second hydraulic cylinder 405 are connected by bolts, the output end of the second hydraulic cylinder 405 and the second pressure sensor 405 are connected by bolts, the second pressure sensor 405 and the half-round extrusion sleeve 406 are connected by bolts, and the two half-round extrusion sleeves 406 are circular in shape when they are folded.

[0033] Embodiment, please refer to Figure 1 , Figure 2 and Figure 6The detection mechanism 5 comprises a second sliding rail 501 arranged above the bearing inner shaft fixed extrusion mechanism 3 and connected between the support plate 2, a second sliding sleeve 502 is sleeved on the second sliding rail 501, a second stepper motor 503 is arranged at the top end of the second sliding sleeve 502, a detection scanning camera 504 is arranged at the bottom of the second sliding sleeve 502, a second limiting plate 505 is arranged at the end of the second sliding rail 501 away from the support plate 2, the second sliding rail 501 and the support plate 2 are connected through bolts, the second sliding sleeve 502 and the second stepper motor 503 are connected through bolts, a pulley that slides back and forth on the second sliding rail 501 is arranged at the output end of the second stepper motor 503, and the detection scanning camera 504 and the second sliding sleeve 502 are connected through bolts.

[0034] Embodiments, please refer to Figure 1 And Figure 2 The support plate 2 is provided with a PLC controller 6 away from the bearing inner shaft fixed extrusion mechanism 3, and the PLC controller 6 is provided with a display screen and a plurality of operation buttons.

[0035] A turbine bearing inner shaft bushing tightness detection method, comprising the following steps:

[0036] S1: first prepare several bearing sleeves to be detected;

[0037] S2: the prepared bearing sleeve is arranged on the outer circumferential wall of the extrusion block 305, and the detection mechanism is controlled through the PLC controller;

[0038] S3: stretch and start the first hydraulic cylinder 303, then drive the first stepper motor (403 on the first sliding rail 401 through the first sliding sleeve 402 to move to the two sides of the started first hydraulic cylinder 303, and then start the second hydraulic cylinder 404 to simultaneously extrude the outside;

[0039] S4: at the same time, the second sliding sleeve 502 is moved to the extrusion position on the second sliding rail 501 through the second stepper motor 503;

[0040] S5: the deformation condition can be detected through the detection scanning camera 504.

[0041] In the application, the bearing inner shaft fixed extrusion mechanism, the bearing outer shaft extrusion mechanism and the detection mechanism are arranged, so that the problem that the existing technology lacks a turbine bearing inner shaft bushing tightness detection mechanism and needs manual detection, which not only has poor detection effect but also has inaccurate detection data, is solved, and the mechanical intelligent detection is used to replace manual detection, so that the detection effect is greatly improved, the detection efficiency is greatly improved, and the accuracy is higher.

[0042] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A steam turbine bearing inner bushing tightness detection mechanism, comprising a base (1), characterized in that: The side of the shorter side of the base (1) is provided with a support plate (2), the center of the support plate (2) and close to one side of the base (1) is provided with a bearing inner shaft fixed extrusion mechanism (3), both sides of the bearing inner shaft fixed extrusion mechanism (3) and the support plate (2) are provided with a bearing outer shaft extrusion mechanism (4), the upper side of the bearing inner shaft fixed mechanism (3) is provided with a detection mechanism (5) for detecting the bearing; The bearing inner shaft fixed extrusion mechanism (3) comprises a support pipe (301) arranged at the center of one side of the support plate (2), a plurality of fixed collars (302) are sleeved on the support pipe (301), four first hydraulic cylinders (303) are arranged on the outer circumferential wall of the fixed collar (302), the output end of each first hydraulic cylinder (303) is provided with a first pressure sensor (304), and the side away from the first pressure sensor (304) of each first pressure sensor (304) is provided with an extrusion block (305); The detection mechanism (5) comprises a second sliding rail (501) connected between the bearing inner shaft fixed extrusion mechanism (3) and the support plate (2), a second sliding sleeve (502) is sleeved on the second sliding rail (501), a second stepping motor (503) is arranged at the top end of the second sliding sleeve (502), a detection scanning camera (504) is arranged at the bottom of the second sliding sleeve (502), and a second limiting plate (505) is arranged at the end of the second sliding rail (501) away from the support plate (2).

2. A mechanism for detecting the tightness of the inner bearing shell of a turbine shaft according to claim 1, characterized in that: The support pipe (301) and the support plate (2) are connected by bolts, the inner circumferential wall of the support pipe (301) and the fixed collar (302) are fixedly connected, the outer circumferential wall of the fixed collar (302) and the non-output end of the first hydraulic cylinder (303) are connected by bolts, the output end of the first hydraulic cylinder (303) and the first pressure sensor (304) are connected by bolts, the first pressure sensor (304) and the extrusion block (305) are connected by bolts, and the four extrusion blocks (305) are arranged in a circular ring shape after the first hydraulic cylinder (303) is completely retracted.

3. The inner bearing shell tight force detection mechanism of claim 1, wherein: The bearing outer shaft extrusion mechanism (4) comprises a first sliding rail (401) arranged at both sides of the bearing inner shaft fixed extrusion mechanism (3) and connected with the support plate (1), a first stepping motor (403) is sleeved outside each of the two first sliding rails (401), a second hydraulic cylinder (404) with the output end directed inward is arranged on the inner side of each of the two first sliding sleeves (402), a second pressure sensor (405) is arranged at the output end of the second hydraulic cylinder (404), an extrusion semicircular sleeve (406) is arranged at the other end of the second pressure sensor (405), and a first limiting plate (407) is arranged on the side of the first sliding rail (401) away from the support plate (2).

4. A steam turbine bearing inner bushing tightness detection mechanism according to claim 3, characterized in that: The first slide rail (401) is connected with the support plate (1) by bolts, the first sliding sleeve (402) is connected with the first stepper motor (403) by bolts, and a pulley that slides back and forth on the first slide rail (401) is arranged at the output end of the first stepper motor (403), the first sliding sleeve (402) is connected with the non-output end of the second hydraulic cylinder (405) by bolts, the output end of the second hydraulic cylinder (405) is connected with the second pressure sensor (405) by bolts, the second pressure sensor (405) is connected with the semicircular extrusion sleeve (406) by bolts, and the two semicircular extrusion sleeves (406) are circular when they are closed.

5. A mechanism for detecting the tightness of the inner bearing shell of a turbine shaft according to claim 1, characterized in that: The second slide rail (501) is connected with the support plate (2) by bolts, the second sliding sleeve (502) is connected with the second stepper motor (503) by bolts, the output end of the second stepper motor (503) is provided with a pulley that slides back and forth on the second slide rail (501), and the detection scanning camera (504) is connected with the second sliding sleeve (502) by bolts.

6. A mechanism for detecting the tightness of the inner bearing shell of a turbine shaft according to claim 1, characterized in that: The support plate (2) is provided with a PLC controller (6) on the side away from the bearing inner shaft fixed extrusion mechanism (3), and the PLC controller (6) is provided with a display screen and a plurality of operation buttons.

7. The method of claim 1-6, wherein the method is characterized by, The method comprises the following steps: S1: first prepare a plurality of bearing sleeves to be detected; S2: place the prepared bearing sleeves on the outer circumferential wall of the extrusion block (305), and control the detection mechanism by the PLC controller; S3: stretch and start the first hydraulic cylinder (303), then drive the first stepper motor (403) to move on the first slide rail (401) to the two sides of one of the started first hydraulic cylinders (303) through the first sliding sleeve (402), and then start the second hydraulic cylinder (404) to extrude the outside at the same time; S4: at the same time, drive the second sliding sleeve (502) to move to the extrusion position on the second slide rail (501) by the second stepper motor (503); S5: the deformation condition can be detected by the detection scanning camera (504).

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