CN219104333U - Rotor clamping mechanism and rotor connection strength testing device - Google Patents

Abstract

The utility model relates to a rotor clamping mechanism, which comprises a shell, a rotating shaft and a driving piece, wherein the shell is provided with a liquid storage cavity; the rotating shaft can be rotatably provided with a shell and extends into the liquid storage cavity, the rotating shaft comprises a connecting end and a transmission end which are opposite, the connecting end is positioned in the liquid storage cavity, and the connecting end can be fixedly connected with the rotor; the stator is fixedly arranged in the liquid storage cavity and can drive the rotor to rotate; the driving piece is arranged outside the shell and is in transmission connection with the transmission end of the rotating shaft so as to drive the rotor to rotate. By the arrangement, when corresponding liquid is added into the liquid storage cavity, the actual working environment of the rotor can be accurately simulated, so that the connection strength between parts in the rotor in the actual working environment can be accurately measured. The utility model also relates to a device for testing the connection strength of the rotor.

Description

Rotor clamping mechanism and rotor connection strength testing device

Technical Field

The utility model relates to the technical field of connection strength testing, in particular to a rotor clamping mechanism and a rotor connection strength testing device.

Background

The rotor is an important part in the blood pump motor, and the rotor drives the output shaft to rotate, so that the transmission function of the blood pump motor can be realized. The rotor comprises a flywheel and a magnet arranged in the flywheel, and in general, the magnet is assembled in the flywheel in a bonding or welding mode, and the motor has a large centrifugal force in the high-speed rotation process, so that the connection between the magnet and the flywheel is invalid.

In order to evaluate whether the connection strength between the magnet and the flywheel of the rotor meets the requirement, the rotor needs to be clamped by means of a rotor clamping tool, and the connection strength between all parts in the rotor needs to be further tested by means of a testing mechanism, however, the traditional rotor clamping tool cannot accurately simulate the actual working environment of the rotor, so that the measurement result of the connection strength between all parts in the subsequent rotor is inaccurate, and therefore improvement is needed.

Disclosure of Invention

Based on this, it is necessary to provide a rotor clamping mechanism and a rotor connection strength testing device for accurately simulating the actual working environment of the rotor, so as to facilitate the subsequent measurement of the connection strength between the parts in the rotor in the actual working environment. The utility model achieves the above object by the following technical scheme.

In a first aspect, the present utility model provides a rotor clamping mechanism comprising:

a housing having a liquid storage chamber;

the rotating shaft can be rotatably arranged in the shell and extends into the liquid storage cavity, the rotating shaft comprises a connecting end and a driving end which are opposite, the connecting end is positioned in the liquid storage cavity, and the connecting end can be fixedly connected with the rotor;

the stator is fixedly arranged in the liquid storage cavity and can drive the rotor to rotate; and

the driving piece is arranged outside the shell and is in transmission connection with the transmission end of the rotating shaft so as to drive the rotor to rotate.

In one embodiment, the rotor clamping mechanism further comprises a fixing seat and a fastening piece, the fixing seat is arranged in the liquid storage cavity, the stator is connected to the fixing seat, and the fastening piece penetrates through the fixing seat and is connected with the shell.

In one embodiment, the fastener is removably attached to the housing and the depth of attachment of the fastener to the housing is adjustable.

In one embodiment, the housing comprises a shell provided with the liquid storage cavity, an opening communicated with the liquid storage cavity, and a mounting cover provided on the shell and capable of shielding the opening.

In one embodiment, the mounting cover comprises a cover body and a first mounting column, the cover body is detachably connected with the shell and seals the opening, one end of the first mounting column is connected with the cover body, and the other end of the first mounting column extends into the liquid storage cavity.

In one embodiment, the mounting cover further comprises a second mounting column, the second mounting column is arranged on one side, away from the first mounting column, of the cover body, a mounting groove is formed in the surface, adjacent to the cover body, of the second mounting column, and part of the driving piece is arranged in the mounting groove;

the rotor clamping mechanism further comprises a locking piece, wherein the locking piece spans the mounting groove, and two opposite ends of the locking piece are connected to the second mounting column so as to press part of the driving piece against the mounting groove.

In one embodiment, the rotor clamping mechanism further comprises a sealing ring, and the sealing ring is clamped between the shell and the mounting cover and is arranged around the opening; and/or the shell is a transparent piece.

In one embodiment, the housing comprises an upper housing and a lower housing, the upper housing and the lower housing enclose to form the liquid storage cavity, the opening is formed in the upper housing, the upper housing is provided with a plugging ring encircling the liquid storage cavity, the lower housing is provided with a plugging groove encircling the liquid storage cavity and communicated with the liquid storage cavity, and the plugging ring is matched with the plugging groove.

In a second aspect, the present utility model further provides a device for testing connection strength of a rotor, including a testing assembly and any one of the rotor clamping mechanisms described above, where the testing assembly is electrically connected to the driving member, so as to measure connection strength between parts in the rotor.

In one embodiment, the test assembly includes a sensor electrically connected to the driving member to emit a warning signal when the rotor is loosened or separated, and a warning device electrically connected to the sensor to emit an alarm according to the warning signal.

Compared with the prior art, the rotor clamping mechanism comprises the shell, the rotating shaft, the stator and the driving piece, wherein the connecting end of the rotating shaft stretches into the liquid storage cavity, so that when the rotor is fixed at the connecting end, the rotor can stretch into liquid stored in the liquid storage cavity, the stator capable of driving the rotor to rotate is arranged in the liquid storage cavity, and the driving piece outside the shell is in transmission connection with the driving end of the rotating shaft so as to drive the rotor to rotate, thereby accurately simulating the actual working environment of the rotor, and further being convenient for accurately measuring the connection strength between all parts in the rotor in the actual working environment.

Drawings

Fig. 1 is a schematic structural diagram of a rotor clamping mechanism provided by the utility model when testing a rotor.

Fig. 2 is a schematic structural view of a housing of the rotor clamping mechanism shown in fig. 1.

Fig. 3 is a longitudinal cross-sectional view of the mounting cap of the rotor chuck shown in fig. 1.

Fig. 4 is a partial enlarged view of fig. 1 at a.

Fig. 5 is a schematic structural diagram of the rotor clamping mechanism provided by the utility model when an impeller is tested.

Fig. 6 is a schematic diagram of a connection structure between a fixing base and a stator of the rotor clamping mechanism shown in fig. 1.

Fig. 7 is a schematic view of the overall structure of the rotor clamping mechanism shown in fig. 1.

Fig. 8 is a schematic view of the mounting cover of the rotor clamping mechanism shown in fig. 1 in a view angle.

Fig. 9 is a schematic view of the overall structure of the mounting cover of the rotor clamping mechanism shown in fig. 1 in another view.

Fig. 10 is a schematic structural diagram of a rotor connection strength testing device (excluding a testing component) according to the present utility model.

Reference numerals illustrate:

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

Referring to fig. 1 to 3, in an embodiment of the utility model, a rotor clamping mechanism 100 includes a housing 1, a rotating shaft 30, a driving member 40 and a stator 60, wherein the housing 1 has a liquid storage cavity 101, the rotating shaft 30 is rotatably disposed in the housing 1 and extends into the liquid storage cavity 101, the rotating shaft 30 includes opposite connection ends 301 and a driving end 302, the connection ends 301 are located in the liquid storage cavity 101, and the connection ends 301 can be fixedly connected with a rotor 2000; the stator 60 is fixedly arranged in the liquid storage cavity 101, and the stator 60 can drive the rotor 2000 to rotate; the driving member 40 is disposed outside the housing 1 and is in driving connection with the rotating shaft 30 to drive the rotor 2000 to rotate.

The housing 1 includes a case 10 and a mounting cover 20, and the mounting cover 20 is provided to cover the case 10. By providing the housing 1 as the case 10 and the mounting cover 20, the rotor 2000 is conveniently mounted at the end of the rotation shaft 30 located in the liquid storage chamber 101.

The housing 10 has a liquid storage chamber 101 and an opening 102 communicating the liquid storage chamber 101 with the external environment. Specifically, the casing 10 includes an upper casing 11 and a lower casing 12, the upper casing 11 and the lower casing 12 enclose to form a liquid storage cavity 101, the opening 102 is provided on the upper casing 11, the upper casing 11 is provided with a plugging ring 111 surrounding the liquid storage cavity 101, the lower casing 12 is provided with a plugging groove 121 surrounding the liquid storage cavity 101 and communicating with the liquid storage cavity 101, and the plugging ring 111 is matched with the plugging groove 121. So set up, the split and the equipment with casing 10 are convenient to do benefit to the washing in liquid storage cavity 101 after joint strength test.

The mounting cover 20 is provided to cover the housing 10 and to cover the opening 102, and the mounting cover 20 is provided with a through hole 201. There are various manners in which the mounting cover 20 is detachably connected to the housing 10, the mounting cover 20 may be in threaded connection with the housing 10, the mounting cover 20 may be in magnetic connection with the housing 10, the mounting cover 20 may be in snap connection with the housing 10, and the mounting cover 20 and the housing 10 are illustrated in fig. 2 by way of example. Obviously, the mounting cover 20 may also be placed directly on the adjacent outer surface of the housing 10.

It should be understood that the number of the liquid storage cavities 101 and the number of the openings 102 may be one or more, when the number of the liquid storage cavities 101 is plural, the number of the openings 102 corresponding to each liquid storage cavity 101 may be the same or different, and when the number is plural, one mounting cover 20 may cover plural openings 102, or plural mounting covers 20 may cover plural openings 102 corresponding to each other.

The rotating shaft 30 is arranged in the through hole 201 in a penetrating manner and extends into the liquid storage cavity 101, the rotating shaft 30 comprises a connecting end 301 and a driving end 302 which are opposite, the connecting end 301 is positioned in the liquid storage cavity 101, the connecting end 301 can be fixedly connected with the rotor 2000, for example, the rotor 2000 can be connected with the connecting end 301 in a welding manner, an adhesive manner or an interference fit manner, and the like.

The driving element 40 is disposed outside the casing 1, that is, the driving element 40 is located on a side of the mounting cover 20 facing away from the casing 10, and the driving element 40 is in driving connection with the driving end 302 of the rotating shaft 30 to drive the rotor 2000 to rotate. Specifically, the rotating shaft 30 is in transmission connection with the driving member 40 through the coupling 31, so that the transmission connection between the rotating shaft 30 and the driving member 40 is convenient.

There are a variety of types of driving member 40, and the driving member 40 may be a motor, a rotary cylinder, or the like. Obviously, the driving member 40 may be provided according to the type of the rotating member for driving the rotor 2000 to rotate in an actual working environment. For example, referring to fig. 1 and 4, when the rotor 2000 is used in a blood pump, the driving member 40 may be configured as a motor of the blood pump, so that the actual working environment of the rotor 2000 can be accurately simulated, which is beneficial to accurately measuring the connection strength between the parts in the rotor 2000.

Referring to fig. 1 and 4, the rotor 2000 includes a flywheel 2100 and a magnet 2200, the magnet 2200 may be adhered in the flywheel 2100, the flywheel 2100 may be fixedly connected to the connection end 301, and the driving member 40 drives the rotor 2000 to rotate relative to the stator 60, so as to test the connection strength between the magnet 2200 in the rotor 2000 and the flywheel 2100.

Referring to fig. 5, in an embodiment, the rotor clamping mechanism 100 may also be used to test the connection strength between the impeller 3000 and the rotating shaft 30 of the blood pump, for example, the rotor 2000 connected to the connection end 301 is replaced by the impeller 3000, the impeller 3000 may be connected to the connection end 301 by bonding or other means, and the actual working environment of the impeller 3000 is simulated by adding blood into the liquid storage cavity 101 and driving the rotating shaft 30 to rotate through the driving member 40, so that the connection strength between the impeller 3000 and the rotating shaft 30 in the actual working environment can be accurately measured. The rotor clamping mechanism 100 not only can be used for testing the connection strength of all parts in the rotor 2000, but also can be used for testing the connection strength of the impeller 3000 of the blood pump and the rotating shaft 30, and the application range of the rotor clamping mechanism 100 is enlarged. It will be appreciated that the rotor clamping mechanism 100 provided by the present utility model may also be used to test other structures having an assembly relationship, and may be specifically set according to practical situations.

In the above-described configuration, when testing the connection strength of the rotor 2000, first, the mounting cover 20 is removed from the housing 10, and the shaft 30 is pulled out of the liquid storage chamber 101. Next, a corresponding liquid is added into the liquid storage chamber 101 to simulate the working environment of the rotor 2000. For example, when the rotor 2000 is a rotor of a blood pump, a rinse solution may be added to the reservoir 101, simulating the actual operating environment of the rotor 2000. Then, the rotor 2000 is fixed to the connection end 301, and then the installation cover 20 covers the connection end, so that the rotation shaft 30 and the rotor 2000 extend into the liquid storage cavity 101. Finally, the rotor 2000 is driven to rotate for a preset period of time by the driving piece 40 and the rotating shaft 30, then the mounting cover 20 is detached from the shell 10, the rotating shaft 30 and the rotor 2000 are pulled out from the liquid storage cavity 101, whether the rotor 2000 loosens or falls off is observed, and accordingly whether the connection strength between all parts in the rotor 2000 is qualified is judged. If the rotor 2000 is loosened or fallen, the connection strength between the parts in the rotor 2000 is not qualified, and if the rotor 2000 is not loosened or fallen, the connection strength between the parts in the rotor 2000 is qualified. So set up, when adding corresponding liquid to the liquid storage chamber 101 in, can accurately simulate the actual operational environment of rotor 2000 to can accurately survey the joint strength between each part in rotor 2000 in the actual operational environment in the follow-up.

The rotor clamping mechanism 100 provided by the utility model can add corresponding liquid into the liquid storage cavity 101 according to different working environments of the rotor 2000 so as to simulate the actual working environment of the rotor 2000, thereby being convenient for accurately measuring the connection strength between all parts in the rotor 2000 in the actual working environment.

Referring to fig. 1, 4 and 6, in an embodiment of the present utility model, the rotor clamping mechanism 100 further includes a fixing base 50, the fixing base 50 is disposed in the liquid storage cavity 101, the stator 60 is connected to the fixing base 50 and can drive the rotor 2000 to rotate, and in actual circumstances, the rotor 2000 of the blood pump can be driven by the stator 60 and is disposed opposite to the stator 60 during operation, so that the actual working environment of the magnet 2200 of the rotor 2000 can be better simulated by virtue of the setting of the fixing base 50 and the stator 60.

Specifically, the fixing base 50 is provided with a mounting hole 51 facing the connection end 301, the mounting hole 51 is inserted with a fixing shaft 52 in an interference manner, and the stator 60 is sleeved and fixed on one end of the fixing shaft 52 close to the rotating shaft 30. This arrangement facilitates the fixing of the stator 60. And, after the fixed shaft 52 is inserted into the fixing hole 202, the fixed shaft 52 can be further fixed by glue adhesion, and a screw 53 is further screwed on the side of the fixed shaft 52 opposite to the connection end 301.

It will be appreciated that the fixing base 50 may be fixedly connected to the inner wall of the liquid storage cavity 101, and the fixing base 50 may also be fixedly connected to the mounting cover 20. Compared with the fixed connection between the fixed seat 50 and the inner wall of the liquid storage cavity 101, the fixed seat 50 and the mounting cover 20 can be fixedly connected to draw the fixed seat 50 and the stator 60 out together through the opening 102 when the mounting cover 20 is detached from the housing 10, so that the fixed seat 50 and the stator 60 can be conveniently taken out from the liquid storage cavity 101. Thus, in one embodiment of the present utility model, the rotor clamping mechanism 100 further includes a fastener 70, wherein the fastener 70 is disposed through the fixed base 50 and is connected to the mounting cover 20. By means of the arrangement, the fixing base 50 can be fixed on the mounting cover 20 through the fastener 70, and then the fixing base 50 and the stator 60 can be conveniently taken out of the liquid storage cavity 101.

Referring to fig. 1, 3, 4 and 6, considering that the distances between the rotor 2000 and the stator 60 are different in different working environments, the distance between the rotor 2000 and the stator 60 of the blood pump is illustratively 0.05-0.45mm, and the distance between the rotor 2000 and the stator 60 in a common motor is 0.5-1.0 mm, if the distance between the fixing base 50 and the connecting end 301 can be adjusted, the distance between the stator 60 and the rotor 2000 can be adjusted, and different working environments can be simulated. In view of this, in an embodiment of the present utility model, the fastener 70 is detachably attached to the mounting cover 20, and the depth of attachment of the fastener 70 to the mounting cover 20 is adjustable. By adjusting the connection depth between the fastener 70 and the mounting cover 20, the distance between the fixing base 50 and the connection end 301 can be adjusted, and the longer the connection depth between the fastener 70 and the mounting cover 20 is, the smaller the distance between the fixing base 50 and the connection end 301 is, so that different working environments can be simulated.

Specifically, the surface of the mounting cover 2 facing the fixing base 50 is provided with a fixing hole 202, the fixing base 50 is provided with a through hole 54 opposite to the fixing hole 202, the fastener 70 is provided as a screw connection piece and comprises a limiting section 71 and a threaded section 72 connected with the limiting section 71, the limiting section 71 is abutted against the surface of the fixing base 50 facing away from the mounting cover 20, and the threaded section 72 is in threaded connection with the fixing hole 202 after passing through the through hole 54.

Obviously, the number of the screw connectors may be one or more, and the number of the fixing holes 202 and the number of the through holes 54 are adapted to the number of the screw connectors. Fig. 1 shows a case where the number of screw-type connectors is plural. Moreover, graduation marks can be arranged on the thread section 72 along the extending direction of the thread section so as to conveniently control the screwing quantity of the thread section 72.

By the above technical solution, screwing the limiting section 71 in the direction approaching the connection end 301 can drive the fixing seat 50 and the stator 60 to move together in the direction approaching the connection end 301, so that the distance between the stator 60 and the rotor 2000 is shortened. By screwing the limiting section 71 in a direction away from the connection end 301, the fixing base 50 and the stator 60 can move together in a direction away from the connection end 301 under the action of gravity, so that the distance between the stator 60 and the rotor 2000 is increased. By adjusting the distance between the stator 60 and the rotor 2000, the connection strength between the parts in the rotor 2000 under different working environment conditions can be simulated.

In another embodiment, the fastener 70 may be configured as a pin that is inserted into the through hole 54 on the fixing base 50 and the fixing hole 202 on the mounting cover 20 in sequence.

Referring to fig. 1, 3, 4 and 6, considering that the distance between the fixing base 50 and the mounting cover 20 is relatively long, a relatively long fastener 70 is required to fix the fixing base 50 to the mounting cover 20, which is inconvenient to fix the fixing base 50 to the mounting cover 20 by the fastener 70. In view of this, in order to facilitate fixing the fixing base 50 to the mounting cover 20 by the fastener 70, in an embodiment of the present utility model, the mounting cover 20 includes a cover body 21 and a first mounting post 22, the cover body 21 is detachably connected to the housing 10 and covers the opening 102, one end of the first mounting post 22 is connected to the cover body 21, and the other end of the first mounting post 22 extends into the liquid storage chamber 101; the cover 21 is provided with a through hole 201. Specifically, a through hole 201 is formed through a surface portion of the cover body 21 facing away from the first mounting post 22 to a surface of the first mounting post 22 facing away from the cover body 21. By arranging the mounting cover 20 to include the cover body 21 and the first mounting post 22, the space between the fixing base 50 and the mounting cover 20 is shortened, and then the fixing base 50 is conveniently fixed to the mounting cover 20 by fastening only the piece. In addition, the rotating shaft 30 can be further limited in the radial direction, so that the rotating amplitude of the rotating shaft 30 can be reduced.

Specifically, the outer peripheral wall of the first mounting post 22 is fitted with the inner peripheral wall of the opening 102, so that the stability of the first mounting post 22 can be enhanced. And the fastener 70 is connected to the first mounting post 22, and the fixing hole 202 is disposed on a side of the first mounting post 22 facing away from the cover 21.

Further, a side of the cover body 21 facing away from the first mounting post 22 and a side of the first mounting post 22 facing away from the cover body 21 are both concavely provided with a fixing groove 203 communicated with the through hole 201, and the rotating shaft 30 is sleeved with the inherent bearings 32, in this application, the number of the bearings 32 is two, and the correspondence of the two bearings 32 is fixed in the two fixing grooves 203. This arrangement ensures smoothness in rotation of the shaft 30.

Referring to fig. 1, 7 and 8, in order to facilitate fixing the driving member 40, in an embodiment of the present utility model, the mounting cover 20 further includes a second mounting post 23, the second mounting post 23 is disposed on a side of the cover 21 facing away from the first mounting post 22, a mounting groove 231 is disposed on a surface of the second mounting post 23 adjacent to the cover 21, and a portion of the driving member 40 is disposed in the mounting groove 231. The rotor clamping mechanism 100 further includes a locking member 80, the locking member 80 straddles the mounting slot 231, and opposite ends of the locking member 80 are coupled to the second mounting post 23 to press a portion of the driver 40 against the mounting slot 231. By means of the locking piece 80, the driving piece 40 is pressed in the mounting groove 231, so that the driving piece 40 is convenient to fix.

Specifically, the side of the mounting groove 231 away from the opening 102 is penetrated, the surface of the second mounting post 23 adjacent to the notch of the mounting groove 231 is further provided with a relief hole 232 for communicating the mounting groove 231 with the through hole 201, and the coupling 31 is positioned in the relief hole 232. And both ends of the locking member 80 are fixed to the second mounting post 23 by bolts, so that the locking member 80 is convenient to assemble and disassemble.

Referring to fig. 7 and 8, in an embodiment of the utility model, the mounting groove 231 has two abutment walls 2311 with an included angle, each abutment wall 2311 extends along the axial direction of the shaft 30, and each abutment wall 2311 abuts against the driving member 40. So arranged, by virtue of the cooperation of the two abutting walls 2311 and the locking piece, three-point clamping and fixing of the driving piece 40 are realized.

Referring to fig. 8, the mounting groove 231 may have a U-shaped cross section in a direction perpendicular to the rotation shaft 30; referring to fig. 9, the mounting groove 231 may have a V-shaped cross section in a direction perpendicular to the rotation shaft 30, which is not particularly limited.

Referring to fig. 1 and 2, considering that there is an assembly gap between the mounting cover 20 and the housing 10, the test liquid in the liquid storage chamber 101 is easy to volatilize through the assembly gap between the mounting cover 20 and the housing 10, so that the test liquid in the liquid storage chamber 101 volatilizes too fast, which is not beneficial to the connection strength test. In view of this, in order to slow the evaporation rate of the test liquid in the liquid storage chamber 101, in an embodiment of the present utility model, the rotor clamping mechanism 100 further includes a sealing ring 90, where the sealing ring 90 is clamped between the housing 10 and the mounting cover 20 and is disposed around the opening 102. By setting the sealing ring 90, the mounting cover 20 and the housing 10 are in sealing connection, so that the volatilization speed of the test liquid in the liquid storage cavity 101 is reduced.

The material of the seal ring 90 may be an elastic material such as rubber or silica gel, and is not particularly limited herein. Specifically, the outer surface of the housing 10 adjacent thereto is concavely provided with a seal groove 103 surrounding the opening 102, and the seal ring 90 is fitted with the seal groove 103 and elastically abuts against the mounting cover 20. So arranged, the sealing ring 90 is convenient to install.

It is convenient to observe whether the rotor 2000 is loose or falls off, considering that if the housing 10 is a transparent member. In view of this, in one embodiment of the present utility model, the housing 10 is a transparent member.

Obviously, the transparent member may be partially made of a transparent material to form a transparent observation window, or may be entirely made of a transparent material, which is not particularly limited herein. The transparent material may be transparent plastic, transparent glass, or the like, and is not particularly limited herein.

In summary, the rotor clamping mechanism 100 provided by the utility model comprises a housing 1, a rotating shaft 30, a stator 60 and a driving member 40, wherein the housing 1 is provided with a liquid storage cavity 101, the rotating shaft 30 can be rotatably arranged in the housing 1 and extend into the liquid storage cavity 101, the rotating shaft 30 comprises a connecting end 301 and a driving end 302 which are opposite, the connecting end 301 is positioned in the liquid storage cavity 101, and the connecting end 301 can be fixedly connected with a rotor 2000; the stator 60 is fixedly arranged in the liquid storage cavity 101, and the stator 60 can drive the rotor 2000 to rotate; the driving member 40 is disposed outside the housing 1 and is in driving connection with the rotating shaft 30 to drive the rotor 2000 to rotate. The connecting end 301 of the rotating shaft 30 stretches into the liquid storage cavity 101, so that when the rotor 2000 is fixed at the connecting end 301, the rotor 2000 can stretch into liquid stored in the liquid storage cavity 101, the stator 60 capable of driving the rotor 2000 to rotate is arranged in the liquid storage cavity 101, and the driving piece 40 outside the shell 1 is in transmission connection with the driving end 302 of the rotating shaft 30 so as to drive the rotor 2000 to rotate, thereby accurately simulating the actual working environment of the rotor 2000, and further accurately measuring the connection strength between all parts in the rotor 2000 in the actual working environment.

The utility model also provides a rotor connection strength testing device 1000, which comprises a testing component (not shown) and a rotor clamping mechanism 100, wherein the testing component is electrically connected with the driving piece 40 to measure the connection strength between all parts in the rotor 2000.

In order to facilitate knowing whether the rotor 2000 is loosened or separated to measure the connection strength between the parts in the rotor 2000, in an embodiment of the present utility model, the rotor clamping mechanism 100 further includes a sensor (not shown) and an alarm (not shown), wherein the sensor is electrically connected to the driving member 40 to send out an alarm signal when the rotor 2000 is loosened or separated, and the alarm is electrically connected to the sensor to send out an alarm according to the alarm signal.

The types of the sensors are various, the sensors can be power sensors or current sensors to detect the power or current of the driving member 40, when the rotor 2000 loosens or falls off, the power or current of the driving member 40 is obviously changed to form an alarm signal, the corresponding time is recorded, the time for the driving member 40 to rotate can be known, and the longer the time is, the better the connection strength between all parts in the rotor 2000 is indicated. The sensor may also be a load sensor, which is used to sense the load of the driving element 40, when the rotor 2000 loosens or falls off, the sensor senses that the load changes obviously, forms an alarm signal, records the corresponding time, and can know the rotation time of the driving element 40, and the longer the time, the better the connection strength between the parts in the rotor 2000.

Through the above technical scheme, when the rotor 2000 is loosened or separated, the sensor detects that the operation parameter of the driving member 40 is changed and sends out a warning signal, and the warning device sends out an alarm after receiving the warning signal, so that the rotor 2000 is loosened or separated.

Referring to fig. 10, the rotor connection strength testing apparatus 1000 further includes a carrying plate 200, handles 210 are disposed on two opposite sides of the carrying plate 200, and a plurality of rotor clamping mechanisms 100 are disposed on the carrying plate 200. So set up, conveniently carry out joint strength test simultaneously to a plurality of rotors 2000.

With reference to the above embodiment, since the rotor clamping mechanism 100 can accurately simulate the actual working environment of the rotor 2000, the rotor connection strength testing device 1000 provided in the present application can accurately measure the connection strength between the parts in the rotor 2000 in the actual working environment.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The utility model provides a rotor clamping mechanism which characterized in that includes:

a housing having a liquid storage chamber;

the rotating shaft can be rotatably arranged in the shell and extends into the liquid storage cavity, the rotating shaft comprises a connecting end and a driving end which are opposite, the connecting end is positioned in the liquid storage cavity, and the connecting end can be fixedly connected with the rotor;

the stator is fixedly arranged in the liquid storage cavity and can drive the rotor to rotate; and

the driving piece is arranged outside the shell and is in transmission connection with the transmission end of the rotating shaft so as to drive the rotor to rotate.

2. The rotor clamping mechanism of claim 1, further comprising a fixing seat and a fastener, the fixing seat being disposed in the liquid storage cavity, the stator being connected to the fixing seat, the fastener being disposed through the fixing seat and connected to the housing.

3. The rotor chuck according to claim 2, wherein the fastener is detachably attached to the housing, and a depth of attachment of the fastener to the housing is adjustable.

4. The rotor clamping mechanism of claim 1, wherein the housing comprises a shell and a mounting cover, the shell is provided with the liquid storage cavity, the shell is further provided with an opening communicated with the liquid storage cavity, and the mounting cover is arranged on the shell and can cover the opening.

5. The rotor chuck of claim 4, wherein the mounting cap includes a cap body detachably connected to the housing and closing the opening, and a first mounting post having one end connected to the cap body and the other end extending into the reservoir.

6. The rotor clamping mechanism of claim 5, wherein the mounting cover further comprises a second mounting post, the second mounting post is disposed on a side of the cover body facing away from the first mounting post, the second mounting post is provided with a mounting groove, and a portion of the driving member is disposed in the mounting groove;

the rotor clamping mechanism further comprises a locking piece, wherein the locking piece spans the mounting groove, and two opposite ends of the locking piece are connected to the second mounting column so as to press part of the driving piece against the mounting groove.

7. The rotor clamping mechanism of claim 4, further comprising a seal ring sandwiched between the housing and the mounting cover and disposed around the opening; and/or the shell is a transparent piece.

8. The rotor clamping mechanism of claim 4, wherein the housing comprises an upper housing and a lower housing, the upper housing and the lower housing enclose the liquid storage cavity, the opening is formed in the upper housing, the upper housing is provided with a plugging ring surrounding the liquid storage cavity, the lower housing is provided with a plugging groove surrounding the liquid storage cavity and communicated with the liquid storage cavity, and the plugging ring is matched with the plugging groove.

9. A rotor connection strength testing device, comprising a testing assembly and a rotor clamping mechanism according to any one of claims 1 to 8, wherein the testing assembly is electrically connected to the driving member to measure the connection strength between the parts in the rotor.

10. The device for testing the connection strength of a rotor according to claim 9, wherein the testing assembly comprises a sensor and an alarm, the sensor is electrically connected with the driving member to emit an alarm signal when the rotor loosens or falls off, and the alarm is electrically connected with the sensor to emit an alarm according to the alarm signal.

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