WO2021128633A1

WO2021128633A1 - Positionable assembly tool for rotor carbon fiber sheath

Info

Publication number: WO2021128633A1
Application number: PCT/CN2020/082523
Authority: WO
Inventors: 张强; 林英哲; 吴立华; 董继勇
Original assignee: 南京磁谷科技股份有限公司
Priority date: 2019-12-27
Filing date: 2020-03-31
Publication date: 2021-07-01
Also published as: CN211018585U

Abstract

Disclosed in the present utility model is a positionable assembly tool for a rotor carbon fiber sheath, comprising a support, a press, a press sleeve assembly, a guide sleeve, a rotor, a carbon fiber sheath, a positioning sleeve, a displacement sensor and a control module. The bottom end of the rotor is inserted into the support, the positioning sleeve is coaxially sleeved at the lower end of the rotor, and the top side of the positioning sleeve is externally connected to a stopper, which is provided with the displacement sensor; the guide sleeve is coaxially sleeved on the top end of the rotor; the top end of a press sleeve upper component touches the bottom of the press, a press sleeve middle component is fixedly connected to the press sleeve upper component and the press sleeve lower component, the press sleeve lower component is sleeved on the carbon fiber sheath, and the carbon fiber sheath is sleeved on the guide sleeve; a monitoring boss is provided at the bottom of the press sleeve lower component; the displacement sensor detects information about the distance between the monitoring boss and the stopper; and the control module controls the starting and stopping of the press according to the information. The present utility model uses a displacement sensor to detect, in real time, position information about the press-in of a tool into a rotor, so as to avoid the problem that a carbon fiber sheath is damaged due to the continuous press-in of the sheath into the rotor.

Description

Positionable rotor carbon fiber protective suit with tooling

Technical field

The utility model relates to the field of motor assembly, in particular to a positionable rotor carbon fiber protective suit and tooling.

Background technique

At present, the 300kw rotor sheath is made of high-temperature alloy 4169. The high-temperature alloy sheath is expensive and requires hot fitting. During hot fitting, the permanent magnets on the rotor will be partially demagnetized and affect performance. The carbon fiber sheath can be assembled by pressing in at room temperature without affecting the performance of the permanent magnet. The carbon fiber sheath is made of carbon fiber filaments. In order to ensure that the sheath can cover the rotor with interference during normal temperature assembly, and avoid damage, which affects the interference and the strength of the sheath, the assembly tooling of the carbon fiber sheath is designed.

If the press continues to operate, although the sheath can be smoothly pressed into the rotor, the press has a high pressure and is difficult to control. When the protective cover is almost in place, if the press is stopped, there may be some distance from the protective cover in place at this time, that is, the protective cover is not in place; if the tooling is pressed to the positioning sleeve (that is, the protective cover is in place), the manual closing starts The press, at the moment when the press stops, the press will continue to press the compression sleeve component downwards, and the compression sleeve component will continue to press the positioning sleeve under pressure. Because the compression sleeve component and positioning sleeve are thin sheaths, after repeated installations, The artificial reaction time is uncontrollable, and they are prone to deformation and damage.

In the utility model patent with the announcement number CN209389881U, a carbon fiber sheath is used in a carbon fiber sheath press fitting tool, and the carbon fiber sheath is assembled to the rotor through the tool at room temperature. However, the monitoring of the sheath displacement during the assembly process is lacking during the assembly process. , The sheath will continue to be pressed into the rotor and damage the tooling.

Utility model content

Technical purpose: Aiming at the defect that the sheath is continuously pressed into the rotor in the prior art to damage the tooling, the utility model discloses a positionable rotor carbon fiber sheath equipped with tooling, using a displacement sensor to detect the position information of the tooling pressed into the rotor in real time, Avoid the sheath being continuously pressed into the rotor, causing damage to the carbon fiber sheath.

Technical solution: The utility model discloses a positioning tool for a carbon fiber protective suit for a rotor, including a support, a press, a compression sleeve assembly, a guide sleeve, a rotor, a carbon fiber protective sleeve, a positioning sleeve, a displacement sensor and a control module;

The press is located directly above the support, the press sleeve assembly and the rotor are clamped between the press and the support, and the press sleeve assembly is sleeved on the rotor;

The bottom end of the rotor is inserted into the support, the outer side of the bottom end of the rotor is coaxially sleeved with a positioning sleeve; the top side of the positioning sleeve is externally connected with a stopper, and the stopper is equipped with a displacement sensor; the outer diameter of the rotor top end is the same as the inner diameter of the guide sleeve, and the outer side of the rotor top end The coaxial sleeve has a guide sleeve;

The compression sleeve component includes a compression sleeve upper component, a compression sleeve middle component and a compression sleeve lower component. The top of the compression sleeve upper component touches the bottom of the press, and the compression sleeve middle component is fixedly connected with the compression sleeve upper component and the compression sleeve lower component. The lower component is sheathed on the carbon fiber sheath; the carbon fiber sheath is sheathed on the guide sheath, the press presses down the upper component of the sheath, so that the carbon fiber sheath moves down along the guide sheath, and the lower component of the pressure sheath on the outer circumference of the carbon fiber sheath first touches and locates Set the top surface to complete the assembly;

A monitoring boss is arranged at the bottom of the lower component of the pressing sleeve, and a displacement sensor detects the distance information between the monitoring boss and the stop; the control module controls the start and stop of the press according to the distance information detected by the displacement sensor.

Preferably, the middle component of the pressure sleeve and the lower component of the pressure sleeve of the present invention are fixedly connected with screws.

Preferably, there is a clearance fit between the lower component of the pressure sleeve of the present invention and the carbon fiber sheath.

Preferably, the control module of the present invention adopts PLC control.

Beneficial effects:

1. A displacement sensor is added to the device structure of the utility model to detect the position information of the tooling pressed into the rotor in real time, so as to avoid the problem of continuous pressing of the sheath into the rotor and damage to the carbon fiber sheath;

2. The lower component of the compression sleeve and the middle component of the compression sleeve are connected by clearance fit screws, which facilitates the separation of the middle component of the compression sleeve and the lower component of the compression sleeve, facilitates the replacement of different compression sleeve lower components, and satisfies the assembly tooling of various sheaths of different sizes, and The one-time design of tooling can be reused on different rotor guard sets;

3. The clearance fit between the lower component of the compression sleeve and the carbon fiber sheath ensures that the carbon fiber sheath is installed and at the same time facilitates the removal of the compression sleeve component after the outer diameter of the carbon fiber sheath is increased by interference;

4. The PLC feedback control is introduced on the basis of the traditional assembly process to make the assembly structure more precise, and to assemble a large number of rotor sheaths, liberating manpower and improving efficiency.

Description of the drawings

Figure 1 is the general structure diagram of the utility model;

1 is the support, 2 is the press, 31 is the upper part of the press sleeve, 32 is the middle part of the press sleeve, 33 is the lower part of the press sleeve, 331 is the monitoring boss, 4 is the guide sleeve, 5 is the rotor, and 6 is the carbon fiber Sheath, 7 is a positioning sleeve, 71 is a stopper, and 8 is a displacement sensor;

Figure 2 is a schematic diagram of the structure of the utility model after the transfer of the sheath is completed.

Detailed ways

The solution will be described in detail below in conjunction with the drawings.

As shown in Figure 1, a positionable rotor carbon fiber protective set with tooling includes a support 1, a press 2, a compression sleeve assembly, a guide sleeve 4, a rotor 5, a carbon fiber protective sleeve 6, a positioning sleeve 7, and a displacement sensor 8. And the control module; the press 2 is located directly above the support 1, the pressing sleeve assembly and the rotor 5 are clamped between the press 2 and the support 1, and the pressing sleeve assembly is sleeved on the rotor 5.

The bottom end of the rotor 5 is inserted into the support 1, the positioning sleeve 7 is coaxially sleeved on the lower end of the rotor 5, the bottom surface of the positioning sleeve 7 touches the support 1, the top side of the positioning sleeve 7 is externally connected with a stop 71, and the stop 71 is equipped with a displacement sensor 8 ; The inner diameter of the guide sleeve 4 is the same as the outer diameter of the top of the rotor 5, the guide sleeve 4 is coaxially sleeved on the top of the rotor 5, and the press 2 is located directly above the rotor 5;

The compression sleeve assembly includes a compression sleeve upper component 31, a compression sleeve middle component 32 and a compression sleeve lower component 33. The top of the compression sleeve upper component 31 touches the bottom of the press 2, and the compression sleeve middle component 32 is fixedly connected to the compression sleeve upper component 31 and the compression sleeve. The lower assembly 33, the compression sleeve middle component 32 and the compression sleeve lower component 33 are fixedly connected with screws to facilitate the separation of the compression sleeve middle component 32 and the compression sleeve lower component 33, and facilitate the replacement of different compression sleeve lower components 33 to meet different sizes The assembly tooling of each sheath, and the one-time design of tooling can be reused for different rotor sheathing work.

The pressure sleeve lower component 33 and the pressure sleeve middle component 32 are connected by a clearance fit screw, which facilitates the separation of the pressure sleeve middle component 32 and the pressure sleeve lower component 33, facilitates the replacement of different pressure sleeve lower components 33, and meets the requirements of different sizes of sheaths. The assembly tooling, and the one-time design of the tooling can be reused on different rotor guard sets. The clearance fit between the lower component of the compression sleeve and the carbon fiber sheath ensures that the carbon fiber sheath is installed while facilitating the removal of the compression sleeve component after the outer diameter of the carbon fiber sheath is increased by interference.

As shown in Figure 2, the lower part of the press sleeve 33 is sleeved on the carbon fiber sheath 6, and the lower end of the lower part of the press sleeve 33 is slightly lower than the carbon fiber sheath 6. The carbon fiber sheath 6 is sleeved on the guide sleeve 4, and the press 2 presses down The upper component 31 is pressed to make the carbon fiber sheath 6 move down along the guide sleeve 4, and the lower component 33 of the pressure sleeve on the outer periphery of the carbon fiber sheath 6 first touches the top surface of the positioning sleeve 7 so that the carbon fiber sheath 6 is assembled on the outside of the rotor 5.

A monitoring boss 331 is provided at the bottom end of the pressing sleeve lower component 33, and the displacement sensor 8 detects the distance information between the monitoring boss 331 and the stop 71; the control module controls the start and stop of the press 2 according to the distance information detected by the displacement sensor 8. The control module adopts PLC feedback control, which simplifies press 2 from human control to PLC feedback control, saving a lot of manpower. The specific working process of the PLC is: when the carbon fiber sheath 6 is installed in place, the displacement sensor 8 will transmit the detected position information to the PLC in time, and the PLC will immediately issue a stop instruction to the press 2, and the press 2 will stop and continue to press the tooling .

In the process of PLC control, the feedback control makes the assembly structure more precise, and a large number of rotor sheaths are assembled, which frees up manpower and improves efficiency. At the same time, during the assembly process, the tooling provides good assembly guidance for the carbon fiber sheath 6 while protecting The carbon fiber sheath 6 will not be squeezed and deformed, affecting its strength or even being damaged.

The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made. These improvements and Retouching should also be regarded as the protection scope of this utility model.

Claims

A positionable rotor carbon fiber protective suit and tooling, which is characterized in that it includes a support (1), a press (2), a compression sleeve component, a guide sleeve (4), a rotor (5), and a carbon fiber protective sleeve (6) , Positioning sleeve (7), displacement sensor (8) and control module;

The press (2) is located directly above the support (1), the press sleeve assembly and the rotor (5) are clamped between the press (2) and the support (1), and the press sleeve assembly is sleeved on the rotor (5) ；

The bottom end of the rotor (5) is inserted into the support (1), the outer side of the bottom end of the rotor (5) is coaxially sleeved with a positioning sleeve (7); the top side of the positioning sleeve (7) is externally connected with a stop (71), the stop ( 71) Equipped with a displacement sensor (8); the outer diameter of the top end of the rotor (5) is the same as the inner diameter of the guide sleeve (4), and the outer side of the top end of the rotor (5) is coaxially sleeved with a guide sleeve (4);

The pressure sleeve assembly includes a pressure sleeve upper component (31), a pressure sleeve middle component (32) and a pressure sleeve lower component (33). The top of the pressure sleeve upper component (31) touches the bottom of the press (2), and the pressure sleeve middle part The component (32) is fixedly connected to the upper component of the compression sleeve (31) and the lower component (33) of the compression sleeve, the lower component (33) of the compression sleeve is sleeved on the carbon fiber sheath (6), and the carbon fiber sleeve (6) is sleeved on the guide sleeve ( 4) Up, the press (2) presses down the upper component (31) of the sleeve, so that the carbon fiber sheath (6) moves down along the guide sleeve (4), and the lower component (33) of the outer circumference of the carbon fiber sheath (6) First touch the top surface of the positioning sleeve (7); the bottom end of the pressing sleeve lower component (33) is provided with a monitoring boss (331), and the displacement sensor (8) detects between the monitoring boss (331) and the stop (71) The distance information; the control module controls the start and stop of the press (2) according to the distance information detected by the displacement sensor (8).
A positionable rotor carbon fiber protective suit fitting tool according to claim 1, characterized in that the middle component (32) of the compression sleeve and the lower component (33) of the compression sleeve are fixedly connected with screws.
A positionable rotor carbon fiber sheath fitting tooling according to claim 1, characterized in that: the pressure sleeve lower component (33) and the carbon fiber sheath (6) are in clearance fit.
The positionable rotor carbon fiber protective suit fitting tool according to claim 1, wherein the control module is a PLC feedback control.