CN217984760U - Motor fixing tool - Google Patents

Abstract

The utility model belongs to the technical field of motor assembly test, especially, relate to a frock is fixed to motor, can fix the motor, the motor includes the pivot, rotor and stator, pivot and rotor rigid coupling, appeal has between stator and the rotor, frock is fixed to motor is including relative first end cover and the second end cover that sets up, first end cover and second end cover can splice and enclose the installation space that forms can supply the motor installation with common, one of them offers the wearing to establish that supplies the pivot to rotate to wear to establish on first end cover and the second end cover, another sets up the mounting groove that can install at least partial stator, first end cover and second end cover can splice together through the appeal between rotor and the stator. The motor fixing tool is simple to install and brings convenience to performance test of the motor.

Description

Motor fixing tool

Technical Field

This application belongs to motor assembly test technical field, especially relates to a frock is fixed to motor.

Background

The interventional blood pump comprises an impeller and a motor driving the impeller to rotate, the motor is a miniature motor, the motor comprises a rotating shaft, a rotor and a stator, the rotor and the stator are connected with the rotating shaft, and a rotating magnetic field generated by the stator interacts with a magnet of the rotor to enable the rotating shaft to rotate around the axis of the rotating shaft.

In the manufacturing process of the motor, the stator, the rotor and other key parts need to be tested to ensure the quality of the assembled motor, and the running state of the motor in working is generally required to be simulated for testing.

SUMMERY OF THE UTILITY MODEL

The utility model provides a frock is fixed to motor aims at solving the technical problem that is difficult to fix and leads to inconvenient test to small motor among the prior art.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the fixed frock of motor can the fixed motor, the motor includes pivot, rotor and stator, the pivot with the rotor rigid coupling, the stator with appeal has between the rotor, the fixed frock of motor is including relative first end cover and the second end cover that sets up, first end cover with the second end cover can splice to enclose jointly and establish formation and can supply the installation space of motor installation, one of first end cover and second end cover has seted up the confession the pivot rotates the wear to establish hole, and another has seted up and to install at least part the mounting groove of stator, first end cover with the second end cover can pass through the rotor with appeal between the stator and concatenation together.

Optionally, first end cover is provided with first installation cavity, the wear-to-establish hole sets up on the first end cover and with first installation cavity intercommunication, the second end cover is provided with half chamber of second installation, the mounting groove sets up on the second end cover and with half chamber of second installation intercommunication, the mounting groove with the wear-to-establish hole coaxial line, first installation cavity, half chamber of second installation and mounting groove enclose jointly and establish formation installation space.

Optionally, the tool for fixing the motor further comprises a first fastener, wherein a first assembling hole is formed in the first end cover, a second assembling hole is formed in the second end cover, and the first end cover is connected with the second end cover through the first assembling hole and the second assembling hole in a penetrating mode through the fastener.

Optionally, a wire outlet through which a cable of the motor passes is formed in the second end cover, and the wire outlet is communicated with the second mounting half cavity.

Optionally, the first end cap is a transparent end cap or a translucent end cap, and the second end cap is a transparent end cap or a translucent end cap.

Optionally, the first installation cavity includes a first installation half cavity and an installation hole communicated with the first installation half cavity, the installation hole is communicated with the through hole, the installation hole can install a first stator unit of the stator, and the installation groove can install a second stator unit of the stator;

a first flanging is arranged at the end part of the mounting hole close to the through hole; and a second flanging is arranged at the end part of the mounting groove back to the through hole.

Optionally, the motor fixing tool further comprises a second fastener, a first mounting protrusion is arranged on the bottom surface of the first end cover, which is opposite to the second end cover, and the second fastener penetrates through a circuit board of the motor and is fixedly connected with the first mounting protrusion; the peripheral wall of the first mounting half cavity is provided with a first avoidance groove.

Optionally, the fixed frock of motor still includes first bearing, second bearing and shell, first end cover dorsad the surface of second end cover is provided with the spliced pole, the through-going hole runs through the spliced pole, the outer wall of spliced pole be formed with can with shell complex stair structure, first bearing and second bearing install in the shell and can with the pivot is rotated and is connected.

Optionally, the fixed frock of motor still includes the third bearing, first installation cavity include first installation half chamber and with the mounting hole of first installation half chamber intercommunication, the mounting hole with wear to establish the hole intercommunication, the third bearing is installed in the mounting hole and can with the pivot is rotated and is connected.

Optionally, the motor fixing tool further comprises a third fastener, a second mounting protrusion is arranged on the bottom surface of the second mounting half cavity, and the third fastener can penetrate through a circuit board of the motor and is fixedly connected with the second mounting protrusion;

the first end cover is provided with a flange extending into the second mounting semi-cavity;

the flange is provided with an avoidance gap for avoiding the third fastening piece.

The above-mentioned one or more technical scheme in the frock is fixed to motor that this application provided has one of following technological effect at least: because one of the first end cover and the second end cover of the motor fixing tool is provided with the through hole, the other end cover is provided with the mounting groove which is coaxial with the through hole, when the motor fixing tool is used, after the first end cover and the second end cover are opened, the stator is installed in the mounting groove, the rotating shaft is arranged in the through hole in a penetrating mode, the rotor and the stator are respectively installed on the first end cover and the second end cover, the first end cover and the second end cover are spliced together due to attraction force between the rotor and the stator, meanwhile, the fixing of the position of the rotor and the position of the stator of the motor is achieved, the stator of an actual motor and the position relation between the rotor and the rotating shaft are simulated through the motor fixing device, the motor is conveniently tested by an external torque testing device, in other words, the motor fixing tool is adopted, the stator of the actual motor is achieved through the installation of the stator and the rotor on the motor fixing tool, the simulation and the positioning of the position relation between the rotor and the rotating shaft are achieved, meanwhile, the splicing of the first end cover and the second end cover is achieved through the attraction force between the rotor of the motor to be tested, the motor is simplified, and the convenience is brought for testing performance of the motor.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments or the prior art description will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings may be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a motor fixing tool provided with a dual motor in an embodiment of the present application;

FIG. 2 is a cross-sectional view of the motor fixing tool shown in FIG. 1;

fig. 3 is a schematic structural view of the motor fixing tool shown in fig. 1 after the first end cover and the second end cover are separated;

FIG. 4 is an exploded view of the motor mounting fixture of FIG. 1;

FIG. 5 is a schematic view of the structure of the dual motor shown in FIG. 4;

FIG. 6 is an exploded view of the dual motor shown in FIG. 5;

FIG. 7 is a schematic structural view of the first end cap shown in FIG. 4 from a first perspective;

FIG. 8 is a schematic structural view of the first endcap of FIG. 7 from a second perspective;

FIG. 9 is a schematic structural view from a first perspective of the second endcap shown in FIG. 4;

FIG. 10 is a schematic structural view of the second end cap of FIG. 9 from a second perspective;

fig. 11 is a schematic structural diagram of a motor fixing tool loaded with a single motor according to an embodiment of the present application;

FIG. 12 is a cross-sectional view of the motor securing tool shown in FIG. 11;

FIG. 13 is an exploded view of the motor mounting fixture of FIG. 11;

fig. 14 is a schematic structural view of the motor fixing tool shown in fig. 11 with the second end cover and the stator hidden;

fig. 15 is a schematic structural view of a second end cover and a stator of the motor fixing tool shown in fig. 11;

FIG. 16 is a schematic view of the first endcap shown in FIG. 13;

fig. 17 is a schematic structural view of the second end cap shown in fig. 13.

Wherein, in the figures, the various reference numbers:

10. a first end cap; 11. perforating holes; 111. a first flanging; 12. a first mounting half-cavity; 13. a first assembly hole; 14. a first mounting boss; 141. a first fixing hole; 15. a first avoidance slot; 16. connecting columns; 161. a stepped structure; 17. a recessed groove; 18. a convex edge; 19. a first fixing projection; 101. a flange; 102. a second avoidance slot; 103. avoiding the notch; 103. mounting holes;

20. a second end cap; 21. a second mounting half-cavity; 211. a step surface; 22. mounting grooves; 221. second flanging; 23. a second assembly hole; 24. hollowing out holes; 25. a second mounting boss; 251. a third fixing hole; 26. a wire outlet notch; 27. a concave edge; 28. connecting holes; 29. a wiring groove; 30. a second fixing projection; 31. a third avoidance slot;

41. two motors; 411. a rotating shaft; 412. a rotor; 413. a first stator unit; 414. a second stator unit; 415. a circuit board; 4151. a second fixing hole; 416. a first bearing; 417. a second bearing; 418. a housing; 419. a Hall sensor;

42. a single motor; 421. a rotating shaft; 422. a third bearing; 423. a rotor; 4231. a flywheel seat; 4232. a magnet; 424. a stator; 425. a circuit board; 426. a Hall sensor;

50. a third fastener;

61. an installation space; 62. and (7) a wire outlet hole.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in fig. 1-17, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

The application provides a frock is fixed to motor, and this frock is fixed to motor is suitable for the installation to treat the motor of capability test, and the intravascular blood pump motor of capability test is treated in the specially adapted installation, for example, this frock is fixed to motor can be used for installing the motor when the torque test. The motor includes a rotating shaft 411, a rotor 412 and a stator 414, the rotating shaft 411 is fixedly connected to the rotor 412, the stator 414 provides a rotational driving force to rotate the rotor 412, and the rotor 412 drives the rotating shaft 411 to rotate. Wherein there is an attractive force between the stator 414 and the rotor 412.

Referring to fig. 1 and 2, a motor fixing tool according to an embodiment includes a first end cap 10 and a second end cap 20 that are disposed opposite to each other, the first end cap 10 and the second end cap 20 are spliced together to jointly enclose an installation space 61 for installing a power supply, one of the first end cap 10 and the second end cap 20 is provided with a through hole 11 for a rotating shaft 411 to rotatably penetrate therethrough, the other is provided with an installation groove 22 capable of installing at least a part of a stator 414, and the first end cap 10 and the second end cap 20 can be spliced together by an attractive force between a rotor 412 and the stator 414. Wherein, the through hole 11 can be disposed on the first end cap 10, or can be disposed on the second end cap 20, that is, the mounting groove 22 is disposed on the other; the specific structure of the device can be selected according to actual needs, and is not limited herein.

Because one of the first end cover 10 and the second end cover 20 of the motor fixing tool is provided with the through hole 11, and the other is provided with the mounting groove 22 coaxial with the through hole 11, when the motor fixing tool is used, after the first end cover 10 and the second end cover 20 are opened, the stator 414 is mounted in the mounting groove 22, the rotating shaft 411 is arranged in the through hole 11 in a penetrating manner, so that the rotor 412 and the stator 414 are mounted on the first end cover 10 and the second end cover 20 respectively, because the rotor 412 and the stator 414 have attractive force, the first end cover 10 and the second end cover 20 are spliced together by the attractive force, and meanwhile, the position fixing of the rotor 412 and the stator 414 of the motor is realized, thereby the position relation between the stator 414 and the rotor 412 of the actual motor and the rotating shaft 411 is simulated by the motor fixing device, so as to facilitate the testing of the motor by an external torque testing device, in other words, by adopting the motor fixing tool, the splicing of the stator 414 and the rotor 412 and the motor fixing tool, the stator 414, the position relation between the rotor 412 and the rotor 411 of the rotor 412 and the second end cover is simulated, and the performance of the motor is simplified, and the convenience is brought for the testing of the motor by the motor mounting of the motor fixing tool.

With reference to fig. 3, fig. 4, fig. 8 and fig. 9, the first end cover 10 of the fixed frock of this motor that provides is provided with first installation cavity, the through hole 11 sets up on first end cover 10 and communicates with first installation cavity, second end cover 20 is provided with second installation half cavity 21, mounting groove 22 sets up on second end cover 20 and communicates with second installation half cavity 21, mounting groove 22 and the coaxial line of through hole 11, first installation cavity, second installation half cavity 21 and mounting groove 22 enclose jointly and establish formation installation space 61. Specifically, first installation cavity and second installation cavity have been seted up on first end cap 10 and the second end cap 20 respectively, and wear out in the through-hole 11 on the first end cap 10 of pivot follow of motor to conveniently be connected with outside torque test device, and the stator 414 of motor is installed in the mounting groove 22 of second end cap 20, and the motor falls into two parts and distributes in first end cap 10 and second end cap 20 like this, makes things convenient for the dismouting of the fixed frock of motor and motor. During specific assembly, the stator 414 of the motor can be installed in the installation groove 22 of the second end cap 20, the rotor 412 of the motor, the rotating shaft 411 and other components are installed on the first end cap 10, and then the first end cap 10 and the second end cap 20 are spliced, because the installation groove 22 and the through hole 11 are coaxial, that is, the rotor 412 and the stator 414 are also coaxial, the stator 414 and the rotor 412 in the motor can be accurately aligned when the motor fixing tool is assembled; in addition, since the rotor 412 is a magnet, the stator 414 and the rotor 412 have an attraction force, so that the first end cap 10 and the second end cap 20 can be spliced to attract each other, thereby achieving initial positioning. In addition, the stator is fixedly installed through the installation groove 22, so that a structural member for positioning the stator 414 of the motor is not required to be arranged in the motor fixing tool, the structure of the motor fixing tool is simplified, the installation is convenient, and the testing efficiency is improved.

In another embodiment of the present application, as shown in fig. 7, 8 and 9, the provided motor fixing tool further includes a first fastening member (not shown), the first end cover 10 has a first assembling hole 13, the second end cover 20 has a second assembling hole 23, and the first end cover 10 is connected to the second end cover 20 through the first fastening member passing through the first assembling hole 13 and the second assembling hole 23. The first end cover 10 and the second end cover 20 are connected through a first fastener, so that the connection reliability of the fastener is good, and the use stability and reliability of a motor test can be ensured; in addition, the first fastener is convenient and quick to disassemble and assemble, quick installation and fixation of the motor and the motor fixing tool are convenient to achieve, and the testing efficiency is improved.

In another embodiment of the present application, the second end cap 20 is provided with an outlet hole 62 for a cable of a power supply to pass through, and the outlet hole 62 is communicated with the second mounting half cavity 21.

In the embodiment of the present application, it should be noted that, a cable of the motor penetrates through the wire outlet hole 62, so that the motor can be conveniently connected with the testing device, and the rotating shaft penetrates through the through hole 11 and is connected to the torque testing device; specifically, in the test of motor, still need debug the motor through software, the cable that the motor was drawn forth is connected with software and is realized the communication promptly to conveniently test the performance that feeds back the motor through software and reach substandard, accomplish that software data and actual test data approach to unity, for example: if the performance of the motor does not reach the standard, the motor needs to be taken out of the installation space 61, and the structure of the motor needs to be redesigned; if the performance of the motor reaches the standard, the motor can be produced in batch; in addition, the motor also needs software to control operation in subsequent working operation, so that the software can be debugged to match the motor in the testing process of the motor, more specifically, the hall signal sent by the hall sensor on the circuit board in the motor can be debugged through the software, the comparison with the expected value is carried out, and the actual hall signal approaches to the expected value through adjusting the coil winding and the like, so that the motor can be optimized to achieve the best performance.

Referring to fig. 9 and 10, a plurality of hollow holes 24 are formed in a bottom surface of the second end cap 20 of the motor fixing tool. The setting of fretwork hole 24 makes things convenient for the tester to observe the condition of motor in the installation cavity 61 for the tester adjusts the structure of motor according to the condition at any time, improves efficiency of software testing.

In another embodiment of the present application, the first end cap 10 of the motor fixing tool is provided as a transparent end cap or a translucent end cap, and the second end cap 20 is provided as a transparent end cap or a translucent end cap. Specifically, first end cover 10 and second end cover 20 adopt transparent material or translucent material preparation to form, and the tester can directly see through the condition of first end cover 10 and second end cover 20 motor in the fixed frock of motor without dead angle ground like this, and whether the installation targets in place to make things convenient for the tester to adjust the structure of motor according to the condition at any time, improve efficiency of software testing.

Generally, motors are classified into a single motor, which means a motor having one stator, and a double motor, which means a motor having two stators.

With reference to fig. 1 to 10, a structure of a motor fixing tool with a dual motor 41 is described as an example, and the structure of the motor fixing tool differs from that of the motor fixing tool in the above embodiment specifically as follows:

as shown in fig. 5 and fig. 6, the dual-motor 41 includes a rotating shaft 411, a rotor 412 sleeved on the rotating shaft 411, a first stator unit 413 and a second stator unit 414 located at two opposite sides of the rotor 412, and a circuit board 415 sleeved outside the first stator unit 413, one end of the rotating shaft 411 is connected to the first stator unit 413 and the rotor 412, the other end of the rotating shaft 411 is externally connected to a testing device for measuring torque, a hall sensor 419 is disposed on a side surface of the circuit board 415 close to the rotor 412, the hall sensor 419 generates a hall signal, and an external coil of the stator and the hall sensor 419 are connected to an external software debugging device through a cable, so as to implement debugging of performance parameters; meanwhile, the cables need to be reasonably arranged in the installation cavity 61, so that the testing of the motor is facilitated.

In the present embodiment, as shown in fig. 3, 8 and 9, when the motor has two stators, and the two stators are divided into the first stator unit 413 and the second stator unit 414, the first installation cavity includes the first installation half cavity 12 and the installation hole 104 communicating with the first installation half cavity 12, and the installation hole 104 communicates with the through hole 11, wherein the installation hole 104 and the through hole 11 are coaxially arranged and together form a stepped hole structure; the mounting hole 104 is used for fixing the first stator unit 413, and the mounting groove 22 is used for fixing the second stator unit 414; the end part of the mounting hole 104 close to the through hole 11 is provided with a first flanging 111; the end of the mounting groove 22 facing away from the through hole 11 is provided with a second flange 221. Specifically, the first stator unit 413 and the second stator unit 414 are respectively installed in the installation hole 104 and the installation groove 22 and respectively abut against the first flange 111 and the second flange 221, so that the first flange 111 and the second flange 221 respectively support the first stator unit 413 and the second stator unit 414 in the axial direction, that is, the first stator unit 413 and the second stator unit 414 are axially positioned, and therefore it is ensured that the first stator unit 413 and the second stator unit 414 can be accurately adhered to the preset positions of the first end cover 10 and the second end cover 20 in the subsequent process.

In a specific embodiment, the contour shape formed by the first flange 111 in a surrounding manner is the same as the contour shape of the back plate of the first stator unit 413 in size, so that the periphery of the back plate of the first stator unit 413 abuts against the first flange 111, the circumferential direction of the first stator unit 413 is axially supported, and the axial support of the first stator unit 413 is stable and reliable; similarly, the contour shape formed by the second flange 221 in a surrounding manner is the same as the contour shape of the back plate of the second stator unit 414, so that the periphery of the back plate of the second stator unit 414 is abutted on the second flange 221, the circumferential direction of the second stator unit 414 is axially supported, and the axial support of the second stator unit 414 has good stability and reliability.

In this embodiment, the number of the first fastening members is plural, and the first fastening members are uniformly arranged along the circumferential direction of the first end cover 10, so that the connection between the first end cover 10 and the second end cover 20 is tighter, in addition, the surface of the first end cover 10 away from the second end cover 20 is provided with a recessed groove 17 at the first fastening member, the bottom surface of the recessed groove 17 is provided with a first assembling hole 13, after the first fastening member passes through the first assembling hole 13 to be connected with the second end cover 20, the part of the first fastening member, which is exposed out of the first end cover 10, is located in the recessed groove 17, so as to prevent the first fastening member from protruding out of the first end cover 10, and meanwhile, the design of the recessed groove 17 can also reduce the depth of the first fastening member for tightening and locking, thereby facilitating the dismounting and mounting of the first fastening member. In a specific embodiment, the number of the first fasteners is two, three, four or more, and the specific number is selected according to the actual situation, and is not limited herein; illustratively, the number of first fasteners is three.

In this embodiment, as shown in fig. 1, fig. 2 and fig. 9, the surface of the second end cap 20 contacting the first end cap 10 is provided with the wire outlet notch 26, and the inner surface of the wire outlet notch 26 and the surface of the first end cap 10 are surrounded to form the wire outlet hole 62, so that when the cable is installed, the cable can be directly placed in the wire outlet notch 26, and the operation of threading out the cable is simpler.

In the present embodiment, as shown in fig. 2, 8 and 9, the periphery of the first end cap 10 is provided with a convex edge 18, and the periphery of the second end cap 20 is provided with a concave edge 27, so that the convex edge 18 is inserted into the concave edge 27, thereby realizing the matching positioning between the first end cap 10 and the second end cap 20.

In this embodiment, as shown in fig. 9, the motor fixing tool further includes a second fastening member (not shown), the first end cover 10 is provided with a first mounting protrusion 14 on a bottom surface thereof opposite to the second end cover 20, and the second fastening member is used for being fixedly connected to the first mounting protrusion 14 after passing through a circuit board 415 of the motor; the peripheral wall of the first installation half cavity 12 is provided with a first avoidance groove 15. Specifically, the first mounting protrusion 14 can jack up the circuit board 415, so that a space exists between the circuit board 415 and the first mounting half cavity 12, and the space of the space can be used for routing a cable led out from the circuit board 415, and meanwhile, the cable located in the space passes through the first avoidance groove 15 on the peripheral wall of the first mounting half cavity 12 and then passes through the outlet notch 26 on the second end cover 20, so that the routing layout of the cable is completed; the cables directly penetrate out of the first avoiding groove 15, so that the cables can pass through two opposite surfaces of the circuit board 415, and the distribution of the cables is regular and orderly. In addition, the first mounting protrusion 14 is provided, so that the thickness of the joint of the second fastening member is thicker, so that the joint has better connection strength, and meanwhile, the connection depth of the second fastening member can be increased, so that the circuit board 415 is more stably fixed.

In this embodiment, as shown in fig. 4 and 9, the first mounting protrusion 14 is provided with a first fixing hole 141 penetrating through the first end cap 10, the circuit board 415 is provided with a second fixing hole 4151, and the circuit board 415 is fixedly connected to the first end cap 10 by a second fastener penetrating through the second fixing hole 4151 and the first fixing hole 141; in addition, the number of the second fastening members is plural, specifically, may be two, three or more than three, and the second fastening members are uniformly distributed along the circumferential direction of the circuit board 415, so as to improve the reliability of fixing the circuit board 415; illustratively, the number of second fasteners is three.

In this embodiment, the number of the first avoidance grooves 15 is multiple, the first avoidance grooves 15 are uniformly distributed along the circumferential direction of the first installation half cavity 12, the number of the first avoidance grooves 15 may be two, three, or more than three, and the number of the first avoidance grooves 15 may be specifically set according to the actual distribution condition of cables, so that the cables are regularly and orderly routed; illustratively, the number of first avoidance slots 15 is three.

In this embodiment, as shown in fig. 7 and 8, a plurality of hollow holes 24 are also formed in the bottom surface of the first mounting half cavity 12, and the hollow holes 24 are uniformly distributed along the circumferential direction of the first end cover 10, wherein the hollow holes 24 are convenient for a tester to observe the condition of the motor; of course, in other embodiments, the first end cap 10 may not have the hollow hole 24.

In this embodiment, as shown in fig. 1, fig. 2, fig. 4, and fig. 7, the motor fixing tool further includes a first bearing 416, a second bearing 417, and a housing 418, a connection column 16 is disposed on a surface of the first end cover 10 facing away from the second end cover 20, a through hole 11 penetrates through the connection column 16, and a stepped structure 161 is formed on an outer wall of the connection column 16. Specifically, the housing 418 is disposed outside the first end cap 10, the rotating shaft 411 passes through the through hole 11 and then passes through the housing 418, wherein the housing 418 is sleeved on the stepped structure 161 of the connecting column 16 and abuts against the stepped surface of the stepped structure 161, and the housing 418 is internally fixed with the first bearing 416 and the second bearing 417, so as to achieve the rotational connection of the rotating shaft 411, ensure the stability of the butt joint of the housing 418 and the first end cap 10, and ensure that the housing 418 does not shake.

It should be noted that the first bearing 416 and the second bearing 417 may be disposed in the motor fixing tool, that is, a part of the tool, and may also be the first bearing 416 and the second bearing 417 in the blood pump, that is, when the rotating shaft 411, the first stator unit 413, the second stator unit 414, and the rotor 412 are installed, the first bearing 416 and the second bearing 417 in the blood pump are installed in the motor fixing tool together, which is not limited herein.

In this embodiment, as shown in fig. 9 and 10, a connection hole 28 is formed in a surface of the second end cap 20 away from the first end cap 10, and the second end cap can be connected to a testing device through the connection hole 28, so that the motor fixing tool is convenient to fix and mount. In addition, in order to adapt to the connection hole 28 and the line outlet notch 26, the shape of the hollow hole 24 on the second end cap 20 needs to be adapted and adjusted, so that the shape and the structure of some hollow holes 24 on the second end cap 20 are the same and different, and the specific shape and the structure may be set according to actual conditions.

The following describes the workflow of the dual-motor 41 test, specifically as follows:

referring to fig. 1 to 4, firstly, the housing 418 is sleeved on the rotating shaft 411, the first bearing 416 and the second bearing 417 are installed on the rotating shaft 411 from two ends of the housing 418, the first bearing 416 and the housing 418 and the second bearing 417 and the housing 418 are adhered by glue, then the first stator 413 is installed in the installation hole 104 and is adhered and matched by glue, the circuit board 415 and the first end cap 10 are fixed by the second fastener, the other end of the rotating shaft 411 passes through the first stator 413 and then enters the first installation half-cavity 12 of the first end cap 10 and is fixedly matched with the rotor 412, and meanwhile, the hall sensor 419 on the circuit board 415 needs to be ensured to be located between the rotor 412 and the first stator 413, it should be noted that, a gap is formed between the rotating shaft 411 and the first stator 413, so as to prevent the two from contacting, a gap is formed between the rotor 412 and the first stator 413, which is about 0.1mm to 0.2mm, similarly, the second stator 414 is installed in the installation groove 22 and is matched by adhesion, then the first end cap 10 is buckled with the second end cap 20, the first end cap 10 and the second end cap 20 are locked and fixed by the first fastener, meanwhile, a gap is required to be ensured between the rotor 412 and the second stator 414, which is about 0.1mm to 0.2mm, and finally, after the internal routing of the cable is adjusted, the second end cap 20 is fixedly connected with an external testing device, such as a power supply or a bearing device; the end part of the rotating shaft 411, which is exposed out of the motor fixing tool, is connected with a testing device, and a cable led out of the Hall sensor 419 is connected with external software debugging equipment and used for debugging software parameters. Meanwhile, after the external coils of the first stator 413 and the second stator 414 are energized, a magnetic field is generated, so that the rotor 412 drives the rotating shaft 411 to rotate, and thus parameters such as torque, rotating speed and power of the motor are obtained through the testing device.

With reference to fig. 11 to 17, a structure of a motor fixing tool with a single motor 42 will be described as an example, and the structure of the motor fixing tool is specifically different from that of the motor fixing tool in the above embodiment as follows:

as shown in fig. 11 to 13, the single motor 42 includes a rotating shaft 421, a rotor 423 and a stator 424 connected to the rotating shaft 421, and a circuit board 425 sleeved outside the stator 424, the motor fixing tool further includes a third bearing 422, the third bearing 422 is fixed in the through hole 11 of the first end cap 10, meanwhile, the rotating shaft 421 penetrates through the through hole 11, and the stator 424 is fixed in the mounting groove 22; the rotor 423 comprises a flywheel seat 4231 arranged at one end, close to the stator 424, of the rotating shaft 421, the flywheel seat 4231 and the rotating shaft 421 are integrally formed, the rotor 423 further comprises a magnet 4232 fixed in the flywheel seat 4231, a gap exists between the magnet 4232 and the stator 424, the circuit board 425 is fixed in the second mounting half cavity 21 of the second end cover 20, the hall sensor 426 on the circuit board 425 is located beside the gap between the stator 424 and the rotor 423, and a cable led out from the circuit board 425 is externally connected with software debugging equipment for debugging parameters.

Similarly, the third bearing 422 may be disposed in the motor fixing tool, that is, a part of the tool, or may be the third bearing 422 in the blood pump, that is, when the rotating shaft 421, the stator 424 and the rotor 423 are installed, the third bearing 422 in the blood pump is installed in the motor fixing tool together, which is not limited herein.

As shown in fig. 11 to 13, in this embodiment, when the motor has a stator, the first installation cavity includes a first installation half cavity 12 and an installation hole 104 communicating with the first installation half cavity 12, the installation hole 104 communicates with the through hole 11, and the installation hole 104 is used for fixing the third bearing 422 of the motor. Specifically, stator 424 and third bearing 422 are installed respectively in mounting hole 104 and mounting groove 22, have so just realized stator 424 and rotor 423's fixed, and need not to adopt other structures, and its simple structure makes things convenient for the installation of the fixed frock of motor and motor, improves efficiency of software testing.

In this embodiment, the peripheral wall of the first end cap 10 is provided with a first fixing protrusion 19 extending along the circumferential direction thereof, the peripheral wall of the second end cap 20 is provided with a second fixing protrusion 30 extending along the circumferential direction thereof, the first fixing protrusion 19 is butted with the second fixing protrusion 30, the first assembling hole 13 is arranged on the first fixing protrusion 19, and the second assembling hole 23 is arranged on the second fixing protrusion 30, so that the first fastening member only needs to fixedly lock the first fixing protrusion 19 and the second fixing protrusion 30, and the first end cap 10 and the second end cap 20 can be fixedly connected, and the structure is simple and the operation is convenient; in addition, the second avoidance groove 102 for avoiding the first fastening member is formed in the outer peripheral wall of the first end cap 10, so that the locking connection operation of the first fastening member is more convenient and faster.

In this embodiment, as shown in fig. 17, the first end cap 10 is not provided with the hollow hole 24, the bottom surface of the second end cap 20 is provided with a plurality of hollow holes 24, and the cable can be led out from the hollow hole 24 and then led out from the wire trough 29 located at the side of the hollow hole 24, that is, in this embodiment, the hollow hole 24 on the second end cap 20 is the wire outlet hole 62, so that the structure is simple and the processing and manufacturing are convenient.

In this embodiment, when the motor is a single motor 42, as shown in fig. 13, 15 and 17, the motor fixing tool further includes a third fastener 50, a second mounting protrusion 25 is disposed on the bottom surface of the second mounting half cavity 21, and the third fastener 50 passes through the circuit board 425 of the single motor 42 and is fixedly connected to the second mounting protrusion 25; as shown in particular in connection with fig. 12, 14 and 16, the first end cap 10 is provided with a flange 101 that protrudes into the second mounting half-cavity 21; the flange 101 is provided with an escape notch 103 for escaping the third fastening member 50.

Specifically, the circuit board 425 is mounted on the second mounting protrusion 25, so that the second mounting protrusion 25 can jack up the circuit board 425, a gap exists between the circuit board 425 and the bottom surface of the second mounting half cavity 21, the gap can facilitate the routing of cables, and meanwhile, cables led out from the surface, close to the rotor 423, of the circuit board 425 can also pass through the avoiding notch 103, then enter the wire outlet hole 62, and pass through the wire outlet hole 62; in addition, the flange 101 abuts on the circuit board 425, so that the circuit board 425 is clamped between the second mounting projection 25 and the flange 101, and the fixing of the circuit board 425 is more stable and reliable.

In the present embodiment, the second mounting protrusions 25 are provided in a plurality and are uniformly spaced along the circumference of the second mounting half cavity 21, the supporting points for supporting the circuit board 425 are more, and the fixing of the circuit board 425 is more stable and reliable. In addition, as shown in fig. 17, the inner wall of the second mounting half cavity 21 is formed with a stepped surface 211, the stepped surface 211 is flush with the end surface of the second mounting protrusion 25, and the periphery of the circuit board 425 is clamped between the flange 101 and the stepped surface 211, so that the periphery of the circuit board 425 is supported by clamping, and the fixing reliability of the circuit board 425 is better.

In this embodiment, as shown in fig. 15 and 17, the second mounting protrusion 25 is provided with a third fixing hole 251, the circuit board 425 is provided with a fourth fixing hole, and the circuit board 425 is fixedly connected to the second end cap 20 by a third fastener 50 penetrating the fourth fixing hole and the third fixing hole 251. In addition, the inner peripheral wall of the second end cap 20 is provided with a third avoiding groove 31 for avoiding the third fastening member 50, so that the locking connection operation of the third fastening member 50 is more convenient and faster.

The first fastener, the second fastener and the third fastener 50 in the embodiments of the present application may be screws, bolts or bolts.

The workflow of the single motor 42 test is described below, specifically as follows:

firstly, fixing a magnet 4232 in a flywheel seat 4231, sleeving and matching one end of a rotating shaft 421 with a third bearing 422, penetrating through a through hole 11, fixing the third bearing 422 in the through hole 11, and fixing a stator 424 in a mounting groove 22, wherein the fixing of the third bearing 422, the fixing of the magnet 4232 and the fixing of the stator 424 are all in a glue bonding mode; the circuit board 425 is fixed on the second end cover 20 through the third fastener 50, the first end cover 10 is buckled on the second end cover 20, the flange 101 of the first end cover 10 presses the circuit board 425, and finally the first fastener penetrates through the first assembly hole 13 and the second assembly hole 23 to be matched and fixed, so that the assembly and the matching of the single motor 42 and the motor fixing tool are completed.

The present application is intended to cover various modifications, equivalent arrangements, and adaptations of the present application without departing from the spirit and scope of the present application.

Claims (10)

1. The utility model provides a frock is fixed to motor, can the fixed motor, the motor includes pivot, rotor and stator, the pivot with the rotor rigid coupling, the stator with have appeal, its characterized in that between the rotor: the fixed frock of motor includes relative first end cover and the second end cover that sets up, first end cover with the second end cover can splice and enclose to establish jointly and form and can supply the installation space of motor installation, one of first end cover and second end cover has seted up the confession the pivot rotates the wear hole of wearing to establish, and another has seted up and to have installed at least part the mounting groove of stator, first end cover with the second end cover can pass through the rotor with appeal between the stator and splice together.

2. The frock is fixed to motor according to claim 1, characterized in that: first end cover is provided with first installation cavity, wear to establish the hole setting and be in on the first end cover and with first installation cavity intercommunication, the second end cover is provided with half chamber of second installation, the mounting groove sets up on the second end cover and with half chamber intercommunication of second installation, the mounting groove with wear to establish the hole coaxial line, first installation cavity, half chamber of second installation and mounting groove enclose jointly and establish formation installation space.

3. The fixed frock of motor of claim 2, characterized in that: the fixed frock of motor still includes first fastener, first end cover is opened and is equipped with first pilot hole, second end cover is opened and is equipped with the second pilot hole, first end cover passes through the fastener is worn to locate first pilot hole with the second end cover is connected.

4. The fixed frock of motor of claim 2, characterized in that: and the second end cover is provided with a wire outlet through which a cable of the motor penetrates, and the wire outlet is communicated with the second mounting half cavity.

5. The frock is fixed to motor according to claim 2, characterized in that: the first end cover is a transparent end cover or a semitransparent end cover, and the second end cover is a transparent end cover or a semitransparent end cover.

6. The motor fixing tool according to any one of claims 2 to 5, characterized in that: the first mounting cavity comprises a first mounting half cavity and a mounting hole communicated with the first mounting half cavity, the mounting hole is communicated with the through hole, the first stator unit of the stator can be mounted in the mounting hole, and the second stator unit of the stator can be mounted in the mounting hole;

a first flanging is arranged at the end part of the mounting hole close to the through hole; and a second flanging is arranged at the end part of the mounting groove back to the through hole.

7. The frock is fixed to motor according to claim 6, characterized in that: the motor fixing tool further comprises a second fastener, a first mounting protrusion is arranged on the bottom surface, opposite to the second end cover, of the first end cover, and the second fastener penetrates through a circuit board of the motor and is fixedly connected with the first mounting protrusion;

the peripheral wall of the first mounting half cavity is provided with a first avoidance groove.

8. The fixed frock of motor of claim 6, characterized in that: the fixed frock of motor still includes first bearing, second bearing and shell, first end cover dorsad the surface of second end cover is provided with the spliced pole, the through-hole runs through the spliced pole, the outer wall of spliced pole be formed with can with shell complex stair structure, first bearing and second bearing are installed in the shell, and can with the pivot is rotated and is connected.

9. The motor fixing tool according to any one of claims 2 to 5, characterized in that: the fixed frock of motor still includes the third bearing, first installation cavity include first installation half chamber and with the mounting hole of first installation half chamber intercommunication, the mounting hole with wear to establish the hole intercommunication, the third bearing is installed in the mounting hole and can with the pivot is rotated and is connected.

10. The frock is fixed to motor according to claim 9, characterized in that: the motor fixing tool further comprises a third fastener, a second mounting bulge is arranged on the bottom surface of the second mounting half cavity, and the third fastener can penetrate through a circuit board of the motor and is fixedly connected with the second mounting bulge;

the first end cover is provided with a flange extending into the second mounting semi-cavity;

the flange is provided with an avoidance notch for avoiding the third fastener.

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