CN216576461U - Press mounting mechanism with pressure detection function - Google Patents

Abstract

The utility model discloses a press-fitting mechanism with a pressure detection function, which comprises a shell with an inner cavity, a pressure-sensing element, a press-fitting part and a connecting rod, wherein the pressure-sensing element is fixedly connected in the inner cavity of the shell, one end of the connecting rod is arranged in the inner cavity, the other end of the connecting rod is arranged outside the inner cavity of the shell to be connected with the press-fitting part, and the connecting rod can move along the direction towards the pressure-sensing element to be abutted against the pressure-sensing element when the press-fitting part is subjected to pressure. This scheme can be at the real-time management and control pressure of motor magnetic shoe pressure equipment in-process, and the personnel of being convenient for distinguish the defective products.

Description

Press-fit mechanism with pressure detection

technical field

The utility model relates to the technical field of motor rotor manufacturing, in particular to a press-fitting mechanism with pressure detection.

Background technique

Rotor imbalance is one of the main reasons for excessive rotor vibration and noise, which directly affects the working performance and service life of the engine. Various revolving bodies in engineering, due to various factors such as uneven material or blank defects, errors in processing and assembly, and even asymmetric geometric shapes in design, so that when the revolving body rotates, each on its The centrifugal inertial force generated by the tiny particles cannot cancel each other out. The centrifugal inertial force acts on the machine and its foundation through the bearing, causing vibration, resulting in noise, accelerating bearing wear, shortening the life of the machine, and causing destructive accidents in severe cases. To this end, the rotor must be balanced so that it reaches the allowable level of balancing accuracy, or the resulting mechanical vibration amplitude is reduced within the allowable range.

The state in which the magnetic tile of the motor is assembled in the motor casing will affect the dynamic balance of the rotor. Specifically, if the actual thickness of the motor magnetic tile exceeds the design specification (thickness is larger than the design specification, or smaller than the design specification), the rotor will be unbalanced due to insufficient counterweight after being installed in the motor casing; When the magnetic tile of the motor is installed in the casing, the angle is deviated, and the assembly quality error will cause the center of gravity of the rotor to not coincide with the center line of rotation, which will also cause the rotor to be unbalanced. In severe cases, the magnetic tile of the motor will be broken. The phenomenon.

The above two situations are reflected in that, during the assembly process, the pressure used to press the motor magnetic tile into the motor housing is abnormal, that is, when the thickness of the motor magnetic tile is too small, the pressing pressure of the magnetic tile is too small. When the thickness of the magnetic tile of the motor is too large or the assembly angle is deviated, the pressing force of the magnetic tile will increase.

Utility model content

In order to overcome the defects in the prior art, the embodiment of the present invention provides a press-fitting mechanism with pressure detection, which is used to control the pressure in real time during the press-fitting process of the magnetic tile of the motor, which is convenient for personnel to identify defective products.

The embodiment of the present application discloses a press-fitting mechanism with pressure detection, comprising a housing with an inner cavity, a pressure-sensing element, a press-fitting part, and a connecting rod, and the pressure-sensing element is fixedly connected to the inner portion of the housing. In the cavity, one end of the connecting rod is arranged in the inner cavity, and the other end of the connecting rod is arranged outside the inner cavity of the housing to be connected with the press fitting, and the connecting rod can be placed in the inner cavity. When the pressing member is pressed, it moves in a direction toward the pressure-sensing element to counteract the pressure-sensing element.

The utility model at least has the following beneficial effects:

The press-fitting mechanism with pressure detection in this embodiment mainly includes a casing, a pressure-sensitive pressure-sensitive element arranged in the inner cavity of the casing to detect the pressure value, and a pressure-sensitive element that can move relative to the casing to transmit the pressure on the press-fitting piece to the sensor. For the connecting rod of the pressure-sensitive element, when the press-fitting mechanism with pressure detection in this embodiment is used to press-fit the motor magnetic tile, it can control the pressing-fitting pressure in real time throughout the whole process. If the pressure exceeds the standard, it can send an alarm. Remind personnel that if the press-fitting mechanism with pressure detection sends an alarm, the personnel can treat the assembled product as a defective product, so as to avoid the assembled product from being transferred to the next process, even when the press-fitting with pressure detection When the agency issues an alarm, the personnel can stop the press-fitting work in time when the assembly is not completed, and reduce the loss in time.

In order to make the above-mentioned and other objects, features and advantages of the present invention more obvious and easy to understand, the preferred embodiments are exemplified below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Fig. 1 is the structural representation of the press-fitting mechanism with pressure detection in the embodiment of the present utility model;

Fig. 2 is the top view of the press-fitting mechanism with pressure detection in the embodiment of the present invention;

FIG. 3 is a cross-sectional view at A-A in FIG. 2 .

Reference numerals of the above drawings: 1, housing; 11, window; 2, pressure-sensitive element; 3, connecting rod; 31, boss; 4, press fitting; 5, linear bearing; 6, elastic piece; 7 , connecting plate; 8, guide rod.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The press-fitting mechanism with pressure detection in this embodiment can be used for, but not limited to, pressing the magnetic tile of the motor into the motor casing. During the press-fitting process, the press-fitting pressure can be detected in real time, so that personnel can determine whether the press-fitting pressure is within the Within the normal range, it is then determined whether the magnetic tile of the motor is a good product or a defective product after it is installed in the motor casing.

As shown in FIG. 1 to FIG. 3 , the pressing mechanism with pressure detection in this embodiment mainly includes: a housing 1 with an inner cavity, a pressure sensing element 2 , a pressing member 4 and a connecting rod 3 . Among them, the housing 1 is mainly used to install or limit the pressure sensing element 2 and the connecting rod 3. Specifically, the pressure sensing element 2 is fixedly connected to the inner cavity of the housing 1, and one end of the connecting rod 3 is arranged in the housing. In the inner cavity of the body 1, the end of the connecting rod 3 can move in the inner cavity of the shell 1 but does not break away from the inner cavity, and the other end of the connecting rod 3 is arranged outside the inner cavity of the shell 1 to be connected with the inner cavity. External press fitting 4 is connected. Since the connecting rod 3 is connected (preferably fixedly connected) with the press-fitting part 4, when the press-fitting part 4 is press-fitting the motor magnetic tile, it will be subjected to a force (pressure) from the motor magnetic tile, and the force can make the press-fitting part 4 The connecting rod 3 is driven to move toward the pressure sensing element 2 to press against the pressure sensing element 2 . When the pressure sensing element 2 is pressed by the connecting rod 3 , the pressure can be collected and fed back so that the personnel can judge whether the assembled state is qualified.

The press fitting 4 and the connecting rod 3 may be two separate parts, or may be one integrally formed part.

As shown in FIG. 3 , the press-fitting mechanism with pressure detection in this embodiment may further include a linear bearing 5 , and the linear bearing 5 is fixed in the inner cavity of the housing 1 . Specifically, the linear bearing 5 can be connected to the housing 1 through a flange, and the linear bearing 5 is sleeved on the connecting rod 3, which can be used to guide the axial movement of the connecting rod 3 and improve the running stability of the connecting rod 3. At the same time, The frictional force of the movement of the connecting rod 3 can also be reduced. The end of the connecting rod 3 facing away from the press fitting 4 is provided with a boss 31 , and the diameter of the boss 31 is larger than the inner diameter of the linear bearing 5 (located at one end of the inner cavity of the housing 1 ). During movement, the boss 31 will abut against the end of the linear bearing 5 , so that the linear bearing 5 can limit the movement of the connecting rod 3 to prevent the connecting rod 3 from leaving the inner cavity of the housing 1 .

As shown in FIGS. 1 and 3 , the press-fitting mechanism with pressure detection in this embodiment may further include an elastic member 6 for connecting the housing 1 and the press-fitting member 4 . When the pressing member 4 is pressed by the magnetic tile of the motor and drives the connecting rod 3 to move towards the pressure-sensitive element 2, the elastic member 6 is also compressed accordingly. It will recover and push the press fitting 4 away from the pressure sensing element 2 to ensure that the connecting rod 3 no longer abuts on the pressure sensing element 2, so as to prevent the connecting rod 3 from continuing to act on the pressure sensing element 2 after the press fitting is completed. During the process of compression of the elastic member 6, the pressure received is very small, so as to avoid a large pressure difference between the pressure-sensing element 2 and the pressure-fitting member 4 (the force fed back by the pressure-sensing element 2 is equal to the pressure-fitting member 4). The pressure received by the elastic member 6 is subtracted from the pressure received by the elastic member 6). Therefore, preferably, the elastic member 6 can be a spring with a small elastic modulus (or, in other words, a small stiffness).

Further, as shown in FIG. 1 and FIG. 3 , the press-fitting mechanism with pressure detection in this embodiment may further include a connecting plate 7 and a guide rod 8 . The connecting plate 7 can be fixedly connected to the housing 1 , and the guide rod 8 passes through. Set in the spring to guide the spring, one end of the guide rod 8 is connected with the press fitting 4 , and the other end of the guide rod 8 can penetrate through the connecting plate 7 and can move relative to the connecting plate 7 in the axial direction.

The pressure sensing element 2 in this embodiment may be a pressure sensor. As shown in FIG. 1 , the housing 1 may also be provided with a window 11 for communicating the inner cavity and the outside world. The window 11 can be used for wiring the pressure sensor, and the pressure sensor can be connected to a display or an alarm set outside the inner cavity of the housing 1 connected to the device to display to personnel the pressure they are receiving, or to alert personnel of excessive pressure through an alarm.

To sum up, the press-fitting mechanism with pressure detection in this embodiment mainly includes a casing 1, a pressure-sensitive pressure-sensitive element 2 arranged in the inner cavity of the casing 1 to detect the pressure value, and can move relative to the casing 1 to The pressure on the press-fitting part 4 is transmitted to the connecting rod 3 of the pressure-sensing and pressure-sensing element 2. When the press-fitting mechanism with pressure detection in this embodiment is used to press-fit the motor magnetic tile, it can control the press-fitting in real time throughout the whole process. If the pressure exceeds the standard, it can remind the personnel by means of an alarm. If the press-fitting mechanism with pressure detection sends an alarm, the personnel can treat the assembled product as a defective product to prevent the assembled product from being transmitted to the next. In a process, even when the press-fitting mechanism with pressure detection gives an alarm, the personnel can stop the press-fitting work in time when the assembly is not completed, so as to reduce the loss in time.

The principles and implementations of the present utility model are described by using specific embodiments in the present utility model, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present utility model; meanwhile, for those skilled in the art , according to the idea of the present utility model, there will be changes in the specific implementation and application scope. To sum up, the content of this specification should not be construed as a limitation to the present utility model.

Claims (9)

1. The pressure-sensitive element is fixedly connected in the inner cavity of the shell, one end of the connecting rod is arranged in the inner cavity, the other end of the connecting rod is arranged outside the inner cavity of the shell and is connected with the pressure-sensitive element, and the connecting rod can move along the direction towards the pressure-sensitive element to abut against the pressure-sensitive element when the pressure-sensitive element is under pressure.

2. The press-fitting mechanism with pressure detection according to claim 1, further comprising a linear bearing, wherein the linear bearing is fixed in the inner cavity of the housing, and the linear bearing is used for being sleeved on the connecting rod and limiting the connecting rod.

3. The pressure detection press-fitting mechanism according to claim 2, wherein a boss is provided at an end of the connecting rod facing away from the press-fitting unit, and a diameter of the boss is larger than an inner diameter of the linear bearing.

4. The press-fit mechanism with pressure detection according to claim 1, further comprising an elastic member for connecting the housing and the press-fit member.

5. The press-fitting mechanism with pressure detection according to claim 4, wherein the elastic member is a spring.

6. The press-fitting mechanism with pressure detection according to claim 5, further comprising a connecting plate and a guide rod, wherein the connecting plate is connected to the housing, the guide rod is inserted into the spring, one end of the guide rod is connected to the press-fitting member, the other end of the guide rod penetrates through the connecting plate, and the guide rod can move axially relative to the connecting plate.

7. The press-fit mechanism with pressure detection according to claim 1, wherein the pressure-sensitive element is a pressure sensor.

8. The press-fitting mechanism with pressure detection as claimed in claim 7, wherein the housing is further provided with a window for communicating the inner cavity with the outside.

9. The pressure sensing press-fit mechanism according to claim 1, wherein the press-fit member and the connecting rod are integrally formed.

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