A precision magnetic measuring device for an expander rotor

Abstract

This utility model discloses a precise magnetic measuring device for an expander rotor, comprising a positioning base; two roller supports slidably mounted on the positioning base; a belt drive mechanism disposed between the two roller supports; the belt drive mechanism includes a fixed bracket having a rotor through groove; a plurality of pulleys arranged around the rotor through groove on the fixed bracket; a belt wound around the plurality of pulleys; and a motor for driving the belt drive; the belt abuts against the rotor surface for frictional transmission. The purpose of this utility model is to solve the technical problems existing in the prior art and provide a precise magnetic measuring device for an expander rotor, which can reduce errors caused by manual operation, improve operational safety and work efficiency, improve the stability of expander operation, and ensure that the rotor is in better condition when finally put into use.

Description

Technical Field

[0001] This utility model relates to the field of expander testing technology, specifically to a precision magnetic measuring device for expander rotors. Background Technology

[0002] The rotor plays a crucial role in the expander, serving as the core component for energy conversion. Without the efficient and stable operation of the rotor, effective energy conversion is impossible. Precise rotor calibration ensures that the rotor maintains a good dynamic balance during high-speed operation, determining the expander's efficiency and consequently a series of cost-effectiveness impacts. Errors in rotor calibration or inaccurate dimensional precision can lead to surge, excessive vibration, and chain reactions causing shutdowns, while also causing serious damage to the machine's internal components. This will significantly increase economic and time costs, resulting in incalculable losses.

[0003] Therefore, rotor calibration is of great significance in the manufacturing process of expander. Before the application of this device, operators manually adjusted the rotors. However, manual operation is inefficient and difficult to operate, especially for rotors with large mass and size. Safety cannot be guaranteed. If the accuracy of rotor axis alignment and impeller runout is not high, the stable operation of the machine cannot be effectively guaranteed. Utility Model Content

[0004] 1. Technical problem to be solved by the utility model

[0005] The purpose of this invention is to solve the technical problems existing in the prior art and provide a precise magnetic measuring device for expander rotors. It can reduce the errors caused by manual operation, improve operational safety and work efficiency, improve the stability of expander operation, and make the rotor that is finally put into use present a better state.

[0006] 2. Technical Solution

[0007] To solve the above problems, the technical solution provided by this utility model is as follows:

[0008] A precision magnetic measuring device for an expander rotor includes a positioning base; two roller supports slidably disposed on the positioning base; a belt drive mechanism disposed between the two roller supports; the belt drive mechanism includes a fixed bracket having a rotor through groove; a plurality of pulleys arranged around the rotor through groove on the fixed bracket; a belt wound around the plurality of pulleys; a motor for driving the belt drive; and the belt abutting against the rotor surface for frictional transmission.

[0009] Preferably, the belt is radially movable relative to the positioning base along the rotor through slot.

[0010] Preferably, at least a portion of the pulleys are movable relative to the rotor through slot on the fixed bracket.

[0011] Preferably, the fixed bracket is slidably disposed on the positioning base.

[0012] Preferably, the fixed bracket is provided with a rotor inlet and outlet that communicate with the rotor through slot.

[0013] Preferably, the fixed bracket includes a fixed bracket one and a fixed bracket two, and the rotor through slot is disposed between the fixed bracket one and the fixed bracket two. The fixed bracket one and the fixed bracket two are rotatably connected on one side and can be separated from each other on the other side to form the rotor inlet and outlet.

[0014] Preferably, the roller bracket is a telescopic bracket.

[0015] Preferably, the roller bracket includes a sliding seat and two pulleys spaced apart on the sliding seat.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0018] This expander rotor uses a precision magnetic measuring device to drive the rotor's rotation via belt friction transmission. Compared to manual operation, this provides a more stable rotation speed, especially beneficial for larger expander rotors with high precision requirements. It avoids the instability in calibration accuracy and safety issues caused by uneven manual operation. Compared to other transmission mechanisms, belt drive effectively suppresses vibration transmission between the transmission mechanism and the rotor, thus reducing the impact of external factors on the test results. This precision magnetic measuring device for expander rotors addresses existing issues in expander rotor calibration by improving and adjusting the operation, reducing errors caused by manual operation, improving operational safety and efficiency, enhancing the stability of expander operation, and resulting in a rotor that is ultimately put into use in optimal condition. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a precision magnetic measuring device for an expander rotor according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the fixed support structure of a precision magnetic measuring device for an expander rotor according to Embodiment 1 of this utility model;

[0021] Figure 3 This is a schematic diagram of the fixed support structure of a precision magnetic measuring device for an expander rotor according to Embodiment 2 of this utility model;

[0022] 10. Positioning base; 20. Roller bracket; 201. Sliding seat; 202. Pulley; 30. Belt drive mechanism; 301. Fixed bracket; 301a. Rotor through slot; 3011. Fixed bracket one; 3012. Fixed bracket two; 302. Pulley; 303. Belt; 304. Motor. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit the scope of protection of this utility model.

[0024] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in the prior art and will not be elaborated further here. When a component is perpendicular or approximately perpendicular to another component, it means that the ideal state is perpendicularity, but due to manufacturing and assembly effects, there may be a certain degree of perpendicularity error. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only and do not represent the only possible implementation.

[0025] 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 this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] The terms "first" and "second" in this utility model do not represent specific quantities or orders, but are merely used to distinguish names.

[0027] Example 1

[0028] Combined with appendix Figure 1 and Figure 2This embodiment of a precision magnetic measuring device for an expander rotor includes a positioning base 10, which is a linear slide rail with a linear slide track on its upper surface; two roller supports 20, which are slidably mounted on the positioning base 10, with an adjustable distance between them, and the roller supports 20 can be arbitrarily locked at any position on the positioning base 10. This design is suitable for rotors with different journal opening distances; a belt drive mechanism 30 is located between the two roller supports 20, and the belt drive mechanism 30 drives the rotor to its middle position; the belt drive mechanism 30 includes a fixed bracket 301, which has... The rotor has a through slot 301a, which allows the rotor to pass through and has a diameter much larger than the main shaft diameter of the rotor, so that the two ends of the rotor are respectively mounted on the roller supports 20 on both sides; several pulleys 302 are arranged around the rotor through slot 301a on the fixed support 301, and the number of pulleys 302 is at least two; a belt 303 is wound around the pulleys 302; a motor 304 is used to drive the belt 303 to drive the transmission. The motor 304 can drive one of the pulleys 302 to rotate, or it can be connected to the belt 303 for transmission after a drive pulley is installed on its output shaft; the belt 303 abuts against the rotor surface for friction transmission.

[0029] This expander rotor uses a precision magnetic measuring device to drive the rotor via friction transmission using a belt 303. Compared to manual operation, this provides a more stable rotation speed, especially beneficial for larger expander rotors with high precision requirements. It avoids the instability in calibration accuracy and safety issues caused by uneven manual operation. Compared to other transmission mechanisms, the belt drive mechanism 30 effectively suppresses vibration transmission between the transmission mechanism and the rotor, thus reducing the impact of external factors on the test results. This precision magnetic measuring device for expander rotors addresses existing issues in expander rotor calibration by improving and adjusting the operation, reducing errors caused by manual operation, improving operational safety and efficiency, enhancing the stability of expander operation, and ultimately resulting in a rotor in optimal condition for use.

[0030] As a preferred embodiment of this utility model, the belt 303 can move radially along the rotor through groove 301a relative to the positioning base 10, so as to realize the tension adjustment when the belt 303 and the rotor are in contact. This design is to enable the belt drive mechanism 30 to adapt to rotors with various shaft diameters. The precision magnetic measuring device for the rotor of this expander is applicable to a wide range of rotor diameters and lengths, and the electrical runout measurement accuracy is significantly improved, eliminating the influence of mechanical runout caused by the misalignment of the center holes at both ends of the main shaft.

[0031] As a preferred embodiment of this utility model, the pulley 302 is movable relative to the rotor through slot 301a on the fixed bracket 301. That is, at least one of the height and horizontal position of the pulley 302 on the fixed bracket 301 is adjustable. The slot on the fixed bracket 301 for fixing the pulley 302 is a long slot or several point slots. Depending on the fixed position of the pulley 302, the position of the contact section between the belt 303 and the rotor will shift in the height or horizontal direction. Alternatively, the roller bracket 20 can be designed as a telescopic bracket. In this case, the height of the rotor is controlled by the roller bracket 20, thus adapting to rotors of different shaft diameters without needing to adjust the position of the pulley 302.

[0032] Specifically, such as Figure 2 As shown, four pulleys 302 are arranged on the fixed bracket 301. The four pulleys 302 are respectively located around the fixed bracket 301. The belt 303 between the two lower pulleys 302 abuts against the upper surface of the rotor. At this time, the degree of contact between the belt 303 and the rotor can be adjusted by adjusting the two pulleys 302 up and down, so as to adapt to rotors with various shaft diameters.

[0033] As a preferred embodiment of this utility model, the fixed bracket 301 is slidably disposed on the positioning base 10 to ensure that the belt drive mechanism 30 can be adjusted to the middle position of the rotor for driving. After the position of the fixed bracket 301 on the positioning base 10 is adjusted, it is locked on the positioning base 10 by bolts or other fasteners for fixation.

[0034] As a preferred embodiment of the present invention, the roller bracket 20 includes a sliding seat 201 and two pulleys 202 spaced apart on the sliding seat 201. The end of the rotor is mounted between the two pulleys 202 and simultaneously abuts against the two pulleys 202.

[0035] Example 2

[0036] Combined with appendix Figure 3 Compared to Embodiment 1, in this embodiment, the fixed bracket 301 is a movable combined structure, specifically including a fixed bracket 1 3011 and a fixed bracket 2 3012 arranged vertically. The rotor through slot 301a is located between the fixed bracket 1 3011 and the fixed bracket 2 3012. One side of the fixed bracket 1 3011 and the fixed bracket 2 3012 are rotatably connected together, while the other side can be relatively separated to form a rotor inlet and outlet. When the free side is connected, it is locked by fasteners. When the fixed bracket 1 3011 and the fixed bracket 2 3012 are separated, the open rotor inlet and outlet facilitate the insertion of the rotor side into the rotor through slot 301a, thereby realizing the quick assembly and disassembly of the rotor.

[0037] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A precision magnetic measuring device for an expander rotor, characterized in that: include Positioning base; Two roller brackets are slidably mounted on the positioning base; A belt drive mechanism is disposed between the two roller supports; The belt drive mechanism includes The fixed bracket has a rotor through slot; Several pulleys are arranged on the fixed bracket around the rotor through slot; A belt, wound around several of the said pulleys; An electric motor is used to drive the belt drive; The belt abuts against the rotor surface for frictional transmission.

2. The precise magnetic measuring device for an expander rotor according to claim 1, characterized in that: The belt is radially movable relative to the positioning base along the rotor through slot.

3. The precise magnetic measuring device for an expander rotor according to claim 2, characterized in that: At least a portion of the pulleys are movable relative to the rotor through slot on the fixed bracket.

4. A precise magnetic measuring device for an expander rotor according to any one of claims 1-3, characterized in that: The fixed bracket is slidably mounted on the positioning base.

5. A precise magnetic measuring device for an expander rotor according to any one of claims 1-3, characterized in that: The fixed bracket is provided with a rotor inlet and outlet that communicate with the rotor through slot.

6. The precise magnetic measuring device for an expander rotor according to claim 5, characterized in that: The fixed support includes a fixed support one and a fixed support two. The rotor through slot is located between the fixed support one and the fixed support two. The fixed support one and the fixed support two are rotatably connected on one side and can be separated from each other on the other side to form the rotor inlet and outlet.

7. A precise magnetic measuring device for an expander rotor according to any one of claims 1-3, characterized in that: The roller bracket is a telescopic bracket.

8. The precise magnetic measuring device for an expander rotor according to claim 7, characterized in that: The roller support includes a sliding seat and two pulleys spaced apart on the sliding seat.

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