CN221283006U - Motor rotor mounting tool - Google Patents

Abstract

The utility model relates to the technical field of motor assembly, and discloses a motor rotor mounting tool which comprises a base, a clamping mechanism and a press mounting mechanism, wherein the base is provided with a cavity, a pre-assembly part is arranged in the cavity and is spaced from the bottom of the cavity, and a motor shaft extends out of the cavity upwards; the clamping mechanism is arranged above the base and comprises a first clamping plate, a second clamping plate and a locking piece, wherein the first clamping plate and the second clamping plate are used for clamping a motor shaft, and the locking piece is used for locking the first clamping plate and the second clamping plate; the top of the first clamping plate and the top of the second clamping plate are provided with positioning grooves for accommodating the rotor, and the thickness of the bottom wall of each positioning groove is equal to the assembly gap between the rotor and the pre-assembly part; the press-fitting mechanism is used for interference-fitting the rotor on the motor shaft and enabling the bottom end of the rotor to be abutted against the bottom wall of the positioning groove. The utility model has firm clamping on the motor shaft, the rotor is accurately arranged on the motor shaft, the gap between the rotor and the preassembly piece is ensured, and the preassembly piece is effectively protected.

Description

Motor rotor mounting tool

Technical Field

The utility model relates to the technical field of motor assembly, in particular to a motor rotor mounting tool.

Background

When the motor is produced in small batches, large-scale equipment, particularly production equipment in a pipeline mode, cannot be used. The above-mentioned apparatus wastes resources when assembling several or even one motor, and thus, in small-lot motor production, it is mostly necessary to use a separate experimental apparatus.

The existing rotor shaft installation device generally comprises a base, an air cylinder, a pressure head and other structures, wherein a positioning piece is arranged on the base, a lower groove corresponding to one end of a motor shaft is arranged on the positioning piece and used for positioning the motor shaft, and an upper groove corresponding to the other end of the motor shaft is arranged on the pressure head. During operation, one end of the motor, which is not required to be provided with the rotor, is inserted into the lower groove of the positioning piece, then the rotor is sleeved at the other end of the motor shaft, and then the pressure head is driven to move downwards through the air cylinder, so that the rotor is pressed and assembled at the appointed position of the motor shaft.

However, the rotor shaft mounting device in the prior art is only suitable for mounting a single motor shaft, but if the motor shaft is already mounted in cooperation with other parts in advance, the accuracy of the mounting position of the rotor during the mounting process and the support and protection of the other parts need to be considered. For example, when the harmonic reducer and the motor shaft have been assembled in advance, it is necessary to consider how to fix the motor shaft and how to position the rotor if the installation of the rotor is to be further completed.

Therefore, a tool for installing a motor rotor is needed to solve the above technical problems.

Disclosure of utility model

Based on the above, the utility model aims to provide a motor rotor mounting tool which is firm in clamping of a motor shaft, accurate in mounting position of a rotor on the motor shaft, capable of guaranteeing a gap between the rotor and a preassembled part and capable of effectively protecting the preassembled part.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the motor rotor installs frock for install the rotor on the motor shaft, the epaxial assembly part that has in advance of motor, motor rotor installs frock and includes:

The base is provided with a cavity, the pre-assembly part is arranged in the cavity and is spaced from the bottom of the cavity, the motor shaft extends out of the cavity upwards, and the rotor is movably sleeved at the upper end of the motor shaft;

The clamping mechanism is arranged above the base and comprises a first clamping plate, a second clamping plate and a locking piece, the first clamping plate is horizontally abutted with the second clamping plate, arc grooves are respectively formed in one sides, opposite to the first clamping plate and the second clamping plate, of the clamping mechanism, and the arc grooves are used for clamping the motor shaft; the locking piece is used for locking the first clamping plate and the second clamping plate; the top of the first clamping plate and the top of the second clamping plate are provided with positioning grooves for accommodating the rotor, and the thickness of the bottom wall of each positioning groove is equal to the assembly gap between the rotor and the pre-assembly part;

And the press-fit mechanism is used for assembling the rotor on the motor shaft in an interference manner and enabling the bottom end of the rotor to be abutted to the bottom wall of the positioning groove.

In some possible embodiments, the pre-assembly is a harmonic reducer or encoder.

In some possible embodiments, the press-fitting mechanism includes a frame, a driving assembly, a pressing head and a pressing cylinder, the driving assembly is mounted on the frame, the pressing head is disposed at an output end of the driving assembly, the pressing cylinder is configured to be sleeved at an upper end of the motor shaft, a bottom end of the pressing cylinder is abutted with a top end of the rotor, and the pressing head presses the rotor through the pressing cylinder.

In some possible embodiments, the drive assembly is hydraulically, pneumatically, motor-driven, or manually driven.

In some possible embodiments, the driving assembly is manual, the driving assembly comprises a rocker, a gear and a rack, the rack is arranged on the rack in a manner of up-down movement, and the pressure head is fixed at the lower end of the rack; the gear is arranged in the rack and meshed with the rack; the rocker is arranged outside the frame, the rocker is connected with the gear in a transmission manner, and the gear can be driven to rotate by rotating the rocker, so that the rack moves up and down.

In some possible embodiments, both ends of the first clamping plate and the second clamping plate are connected by threaded fasteners; or one end of the first clamping plate is rotationally connected with one end of the second clamping plate, and the other end of the first clamping plate is connected with the other end of the second clamping plate through a threaded fastener.

In some possible embodiments, the locking element comprises at least two first bolts, and two ends of the first clamping plate and the second clamping plate are respectively in locking connection through the first bolts; or alternatively

The side face of the first clamping plate is provided with a first mounting groove, the side face of the second clamping plate is provided with a second mounting groove, the locking piece comprises a first screw rod and a first nut, one end of the first screw rod is rotationally connected in the second mounting groove, and the other end of the first screw rod passes through the first mounting groove and is in threaded connection with the first nut; or alternatively

The side surface of the first clamping plate is provided with a third mounting groove, the side surface of the second clamping plate is provided with a fourth mounting groove, the locking piece comprises a second screw rod, a second nut, a cushion block and a cam wrench, and one end of the second screw rod is rotationally connected with the cam wrench; the cushion block is sleeved on the second screw rod and is positioned between the cam wrench and the first clamping plate; the other end of the second screw rod sequentially passes through the first clamping plate and the second clamping plate and is in threaded connection with the second nut; the first clamping plate and the second clamping plate can be abutted or loosened by rotating the cam wrench; or alternatively

The locking piece comprises a connecting block, a first rotating shaft, a second rotating shaft, a conical block and a second bolt, one end of a first clamping plate is connected with the connecting block through the first rotating shaft, one end of a second clamping plate is connected with the connecting block through the second rotating shaft, a first clamping block is arranged at the other end of the first clamping plate, a second clamping block is arranged at the other end of the second clamping plate, the first clamping block is located above the second clamping block, a conical groove is formed between the first clamping block and the second clamping block, the conical block is installed in the conical groove, the second bolt penetrates through the conical block and is in threaded connection with the second clamping block, and the first clamping plate can be abutted to or loosened with the second clamping plate by adjusting the position of the conical block.

In some possible embodiments, an anti-slip structure is also provided between the arcuate slot and the motor shaft.

In some possible embodiments, the base is in a U-shaped structure, the cavity is a U-shaped cavity penetrating through the upper end face and the lower end face of the base, and the diameter of the cavity is matched with the diameter of the pre-assembly part.

In some possible embodiments, the base and the clamping mechanism are provided with handle portions for easy handling. Further, the handle part is a hanging ring, a handle or a groove.

In some possible embodiments, further comprising a resilient support mechanism disposed within the cavity for resiliently supporting the pre-assembly.

The beneficial effects of the utility model are as follows:

When the motor rotor mounting tool provided by the utility model works, the motor shaft assembled with the preassembled part is firstly placed in the cavity of the base, the cavity can be used for accommodating and protecting the preassembled part, and the bottom of the preassembled part and the bottom of the cavity are arranged at intervals, so that the bottom of the preassembled part is prevented from being impacted in the press mounting process; then, the motor shaft is clamped by the clamping mechanism, so that the clamping is firm and reliable, and the position of the motor shaft is prevented from moving in the press mounting process; and sleeving the rotor from the upper end of the motor shaft, and assembling the rotor on the motor shaft in an interference manner through a press-fit mechanism until the bottom end of the rotor is abutted with the bottom wall of the positioning groove, wherein the thickness of the bottom wall of the positioning groove is the assembly gap between the rotor and the pre-assembly part. The embodiment improves the accuracy of the installation position of the rotor on the motor shaft, ensures the gap between the rotor and the preassembly, and realizes the effective protection and support of the preassembly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic structural diagram of a motor rotor installation tool provided by an embodiment of the utility model;

FIG. 2 is a cross-sectional view of a motor rotor mounting fixture provided by an embodiment of the utility model;

fig. 3 is an exploded view of a motor rotor mounting fixture provided by an embodiment of the present utility model;

Fig. 4 is a schematic structural view of a first clamping mechanism according to an embodiment of the present utility model;

FIG. 5 is a top view of a first clamping mechanism provided in an embodiment of the present utility model;

Fig. 6 is a schematic structural diagram of a second clamping mechanism according to an embodiment of the present utility model;

FIG. 7 is a side view of a second clamping mechanism provided in an embodiment of the present utility model;

fig. 8 is a schematic structural view of a third clamping mechanism according to an embodiment of the present utility model;

fig. 9 is a schematic structural diagram II of a third clamping mechanism according to an embodiment of the present utility model;

fig. 10 is a schematic structural view of a fourth clamping mechanism according to an embodiment of the present utility model;

FIG. 11 is a top view of a fourth clamping mechanism provided by an embodiment of the present utility model;

fig. 12 is a schematic structural view of a fifth clamping mechanism according to an embodiment of the present utility model;

FIG. 13 is a top view of a fifth clamping mechanism provided by an embodiment of the present utility model;

fig. 14 is a schematic structural view of a sixth clamping mechanism according to an embodiment of the present utility model;

fig. 15 is a second schematic structural view of a sixth clamping mechanism according to an embodiment of the present utility model;

Fig. 16 is a partial view of a sixth clamping mechanism provided by an embodiment of the present utility model.

In the figure:

100. a motor shaft; 200. pre-assembling; 300. a rotor;

1. A base; 11. a cavity;

2. A clamping mechanism; 21. a first clamping plate; 211. a first mounting groove; 212. a third mounting groove; 213. a first clamping block; 22. a second clamping plate; 221. a second mounting groove; 222. a fourth mounting groove; 223. a second clamping block; 231. a first bolt; 232. a first screw; 233. a first nut; 234. a second screw; 235. a second nut; 236. a cushion block; 237. a cam wrench; 2301. a connecting block; 2302. a first rotation shaft; 2303. a second rotation shaft; 2304. a conical block; 2305. a second bolt; 2306. a third rotation shaft; 24. an arc-shaped groove; 25. a positioning groove;

31. A frame; 321. a rocker; 322. a rack; 33. a pressure head; 34. pressing a cylinder;

4. A hanging ring; 5. and an elastic supporting mechanism.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", etc., are orientation or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1 to 16, the present embodiment provides a motor rotor mounting fixture for mounting a rotor 300 on a motor shaft 100, wherein a pre-assembly 200 is assembled on the motor shaft 100 in advance, and the pre-assembly 200 may be a harmonic reducer, an encoder, or other components.

The motor rotor mounting tool of the embodiment comprises a base 1, a clamping mechanism 2 and a pressing mechanism. The base 1 is provided with a cavity 11, the cavity 11 providing a receiving space for the pre-assembly 200, the diameter of the cavity 11 preferably being adapted to the diameter of the pre-assembly 200. In the assembly process, the pre-assembly 200 is placed in the cavity 11, so that the motor shaft 100 extends upwards out of the cavity 11, and then the motor shaft 100 is clamped by the clamping mechanism 2; the rotor 300 to be press-fitted is movably sleeved on the upper end of the motor shaft 100, and then the rotor 300 is press-fitted to the motor shaft 100 by a press-fitting mechanism. It should be noted that, the motor shaft 100 of the present embodiment is a stepped shaft with a thin upper portion and a thick lower portion, so the rotor 300 can be movably sleeved on the upper end of the motor shaft 100 before press-fitting. In this embodiment, the bottom end of the pre-assembly 200 is spaced from the bottom of the cavity 11 to avoid damage to the bottom of the pre-assembly 200 due to impact forces during the press-fitting process. Specifically, the pre-assembly 200 may be suspended within the cavity 11; alternatively, the elastic supporting mechanism 5 may be disposed at the bottom of the cavity 11, and the pre-assembly 200 may be supported by the elastic supporting mechanism 5 to buffer the stress of the pre-assembly 200, and also to protect the pre-assembly 200. Preferably, the elastic support means 5 is a spring. Preferably, referring to fig. 3, the base 1 of the present embodiment has a U-shaped structure, the cavity 11 is a U-shaped cavity penetrating through the upper and lower end surfaces of the base 1, and the diameter of the arc part of the U-shaped cavity is slightly larger than the diameter of the pre-assembly 200, so as to perform the functions of accommodating and limiting the pre-assembly 200; the opening of the U-shaped cavity is also slightly wider than the diameter of the pre-assembly 200 to facilitate entry of the pre-assembly 200 into the cavity from the opening. In addition, in this embodiment, the base 1 is further provided with a handle portion that is convenient for carrying, and the handle portion may be a hanging ring, a handle, or a groove provided on an outer side wall of the base 1, so long as the carrying and the movement are convenient. Preferably, in this embodiment, two hanging rings 4 are respectively disposed at two sides of the base 1, so that the device can be carried by hand or by mechanical equipment.

The clamping mechanism 2 of the present embodiment is disposed above the base 1, and the clamping mechanism 2 includes a first clamping plate 21, a second clamping plate 22, and a locking member. The first clamping plate 21 and the second clamping plate 22 are both arranged above the base 1, the first clamping plate 21 and the second clamping plate 22 can be covered above the cavity 11 after being horizontally butted, and the locking piece is used for locking the first clamping plate 21 and the second clamping plate 22. In this embodiment, the opposite sides of the first clamping plate 21 and the second clamping plate 22 are respectively provided with an arc groove 24, the radius of the arc groove 24 is matched with the radius of the motor shaft 100, and the two arc grooves 24 can clamp the motor shaft 100 from two sides. Preferably, an anti-slip structure, such as anti-slip rubber, anti-slip sponge pad, etc., is further provided between the arc-shaped groove 24 and the motor shaft 100, so as to further secure the clamping degree of the motor shaft 100 and prevent the motor shaft 100 from moving up and down. Further, the top of the first clamping plate 21 and the second clamping plate 22 in this embodiment are further provided with a positioning groove 25, and the two positioning grooves 25 are butted to form an entire groove, and the diameter of the groove is larger than that of the rotor 300, so as to accommodate the rotor 300. In this embodiment, the thickness of the bottom wall of the positioning groove 25 is equal to the assembly gap between the rotor 300 and the pre-assembly 200, so that the rotor 300 is only pressed down to abut against the bottom wall of the positioning groove 25 when press-fitting, that is, the rotor 300 is mounted at the accurate position, and the assembly gap between the rotor 300 and the pre-assembly 200 is ensured. Further, the clamping mechanism 2 is also provided with a handle portion which is convenient to carry, and the handle portion can be a hanging ring, a handle or a groove and the like, so long as the carrying and the moving are convenient. Preferably, in this embodiment, a hanging ring 4 is respectively connected to the top of the first clamping plate 21 and the top of the second clamping plate 22, so that the hanging ring can be carried by hand or by mechanical equipment.

Regarding the specific arrangement of the clamping mechanism 2, in this embodiment, both ends of the first clamping plate 21 and the second clamping plate 22 may be connected by threaded fasteners; or one end of the first clamping plate 21 and one end of the second clamping plate 22 are rotatably connected, and the other end of the first clamping plate and the second clamping plate are connected through threaded fasteners. Specifically, the present embodiment shows the following six types of clamping mechanisms 2 in which, of the first to fourth types, the first clamping plate 21 and the second clamping plate 22 are abutted by linear movement, and, of the fifth and sixth types, the first clamping plate 21 and the second clamping plate 22 are abutted by rotation.

As shown in fig. 4 and 5, in the first clamping mechanism 2 provided in this embodiment: the locking element comprises two first bolts 231. One end of the first clamping plate 21 is provided with a first step, and one first bolt 231 passes through the first step and is in threaded connection with one end of the second clamping plate 22; meanwhile, the other end of the second clamping plate 22 is provided with a second step, and the other first bolt 231 passes through the second step and is in threaded connection with the other end of the first clamping plate 21, so that the first clamping plate 21 and the second clamping plate 22 are locked.

As shown in fig. 6 and 7, in the second clamping mechanism 2 provided in this embodiment: the locking element comprises two first bolts 231 and two fixing nuts. The two ends of the first clamping plate 21 are respectively provided with a first step, the two ends of the second clamping plate 22 are respectively provided with a second step, and the two first bolts 231 respectively penetrate through the first steps and the second steps and are in threaded connection with corresponding fixing nuts, so that the first clamping plate 21 and the second clamping plate 22 are locked.

As shown in fig. 8 and 9, in the third clamping mechanism 2 provided in this embodiment: the first clamping plate 21 is provided with a first mounting groove 211 at both ends, and the second clamping plate 22 is provided with a second mounting groove 221 at both ends. The locking element comprises two sets of a first screw 232 and a first nut 233. One end of the first screw 232 is rotatably connected to the second mounting groove 221, and the other end of the first screw 232 passes through the first mounting groove 211 and is then screwed with the first nut 233, so that the first clamping plate 21 and the second clamping plate 22 are locked.

As shown in fig. 10 and 11, in the fourth clamping mechanism 2 provided in this embodiment: the first clamping plate 21 is provided with a third mounting groove 212 at both ends, the second clamping plate 22 is provided with a fourth mounting groove 222 at both ends, and the locking element comprises two sets of second screws 234, second nuts 235, a spacer block 236 and a cam wrench 237. One end of the second screw 234 is rotatably connected to a cam wrench 237; the cushion block 236 is sleeved on the second screw 234 and is positioned between the cam wrench 237 and the first clamping plate 21; the other end of the second screw 234 passes through the first clamping plate 21 and the second clamping plate 22 in sequence and then is in threaded connection with the second nut 235; the first clamping plate 21 can be abutted against or released from the second clamping plate 22 by rotating the cam wrench 237.

As shown in fig. 12 and 13, in the fifth clamping mechanism 2 provided in this embodiment: the locking piece comprises a connecting block 2301, a first rotating shaft 2302, a second rotating shaft 2303, a conical block 2304 and a second bolt 2305, one end of the first clamping plate 21 is connected with the connecting block 2301 through the first rotating shaft 2302, one end of the second clamping plate 22 is connected with the connecting block 2301 through the second rotating shaft 2303, the other end of the first clamping plate 21 is provided with the first clamping block 213, the other end of the second clamping plate 22 is provided with the second clamping block 223, the first clamping block 213 is clamped above the second clamping block 223, a conical groove is formed between the first clamping block 213 and the second clamping block 223, the conical block 2304 is installed in the conical groove, the second bolt 2305 passes through the conical block 2304 and is in threaded connection with the second clamping block 223, and the position of the conical block 2304 in the conical groove can be adjusted by screwing the second bolt 2305, so that the first clamping plate 21 and the second clamping plate 22 can be abutted or loosened. In the above structure, the tapered block 2304 has a hexahedral structure having inclined surfaces on both sides, and the shape of the tapered groove is adapted to the shape of the tapered block 2304.

As shown in fig. 14 to 16, in the sixth clamping mechanism 2 provided in this embodiment: the locking piece comprises a connecting block 2301, a first rotating shaft 2302, a second rotating shaft 2303, a conical block 2304, a second bolt 2305 and a third rotating shaft 2306, one end of a first clamping plate 21 is connected with the connecting block 2301 through the first rotating shaft 2302, one end of a second clamping plate 22 is connected with the connecting block 2301 through the second rotating shaft 2303, the other end of the first clamping plate 21 is provided with a first clamping block 213, the other end of the second clamping plate 22 is provided with a second clamping block 223, the first clamping block 213 is clamped above the second clamping block 223, a conical groove is formed between the first clamping block 213 and the second clamping block 223, the conical block 2304 is installed in the conical groove, the second bolt 2305 passes through the conical block 2304 and is in threaded connection with the second clamping block 223, and the position of the conical block 2304 in the conical groove can be adjusted by screwing the second bolt 2305, so that the first clamping plate 21 and the second clamping plate 22 can be abutted or loosened. The sixth clamping mechanism 2 of the present embodiment is substantially identical to the fifth clamping mechanism 2 described above, except that: the taper block 2304 of the present embodiment is a taper structure, the taper groove is a taper groove, and the second clamping block 223 and the second clamping plate 22 are rotatably connected by the third rotation shaft 2306 in the present embodiment, so that the assembly of the first clamping plate 21 and the second clamping plate 22 is more convenient.

Of course, in other embodiments, the first clamping plate 21 and the second clamping plate 22 may be locked by other manners, which is not limited to the present embodiment.

The press-fitting mechanism provided in the present embodiment is used for interference-fitting the rotor 300 on the motor shaft 100. The press-fitting mechanism comprises a frame 31, a driving assembly, a pressing head 33 and a pressing cylinder 34, wherein the driving assembly is arranged on the frame 31, the pressing head 33 is arranged at the output end of the driving assembly, the pressing cylinder 34 is arranged at the upper end of the motor shaft 100 in a sleeved mode, and the bottom end of the pressing cylinder 34 is in contact with the top end of the rotor 300. When the driving assembly drives the ram 33 to move downward, the ram 33 presses the rotor 300 downward through the pressure cylinder 34 to mount the rotor 300 in place.

The drive assembly of the present embodiment may be hydraulically driven, pneumatically driven, motor driven or manual. The embodiment preferably adopts a manual driving assembly with simple structure and low cost, the driving assembly comprises a rocker 321, a gear and a rack 322, the rack 322 is arranged on the rack 31 in a vertically movable way, and the pressure head 33 is fixed at the lower end of the rack 322; the gear is arranged in the frame 31 and meshed with the rack 322; the rocker 321 is arranged outside the frame 31, the rocker 321 is connected with a gear in a transmission way, and the gear can be driven to rotate by rotating the rocker 321 so as to enable the rack 322 to move up and down, thereby driving the pressure head 33 to move up and down.

In the motor rotor mounting tool provided by the embodiment, during press fitting, the motor shaft 100 assembled with the pre-assembly part 200 is firstly placed in the cavity 11 of the base 1, the cavity 11 can be used for accommodating and protecting the pre-assembly part 200, and the bottom of the pre-assembly part 200 is arranged at intervals with the bottom of the cavity 11, so that the bottom of the pre-assembly part 200 is prevented from being impacted in the press fitting process; then the motor shaft 100 is clamped by the clamping mechanism 2, so that the clamping is firm and reliable, and the position of the motor shaft 100 is prevented from moving in the press mounting process; then, the rotor 300 is sleeved in from the upper end of the motor shaft 100, and the rotor 300 is assembled on the motor shaft 100 in an interference manner through the press-fit mechanism until the bottom end of the rotor 300 is abutted against the bottom wall of the positioning groove 25, and the thickness of the bottom wall of the positioning groove 25 is the assembly gap between the rotor 300 and the pre-assembly 200. The present embodiment improves the accuracy of the mounting position of the rotor 300 on the motor shaft 100, ensures the clearance between the rotor 300 and the preassembly 200, and achieves effective protection and support of the preassembly 200.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (10)

1. Motor rotor installation frock for install rotor (300) on motor shaft (100), assemble on motor shaft (100) and have subassembly (200) in advance, its characterized in that, motor rotor installation frock includes:

A base (1), wherein the base (1) is provided with a cavity (11), the pre-assembly part (200) is arranged in the cavity (11) and is spaced from the bottom of the cavity (11), the motor shaft (100) extends out of the cavity (11) upwards, and the rotor (300) is movably sleeved at the upper end of the motor shaft (100);

The clamping mechanism (2) is arranged above the base (1), the clamping mechanism (2) comprises a first clamping plate (21), a second clamping plate (22) and a locking piece, the first clamping plate (21) is horizontally abutted with the second clamping plate (22), arc grooves (24) are respectively formed in one side, opposite to the second clamping plate (22), of the first clamping plate (21), and the arc grooves (24) are used for clamping the motor shaft (100); the locking piece is used for locking the first clamping plate (21) and the second clamping plate (22); the tops of the first clamping plate (21) and the second clamping plate (22) are provided with positioning grooves (25) for accommodating the rotor (300), and the thickness of the bottom wall of each positioning groove (25) is equal to the assembly gap between the rotor (300) and the pre-assembly part (200);

And the press-fit mechanism is used for assembling the rotor (300) on the motor shaft (100) in an interference manner, and enabling the bottom end of the rotor (300) to be abutted against the bottom wall of the positioning groove (25).

2. The motor rotor mounting fixture according to claim 1, wherein the press-mounting mechanism comprises a frame (31), a driving assembly, a pressing head (33) and a pressing cylinder (34), the driving assembly is mounted on the frame (31), the pressing head (33) is arranged at an output end of the driving assembly, the pressing cylinder (34) is configured to be sleeved at an upper end of the motor shaft (100), a bottom end of the pressing cylinder (34) is abutted with a top end of the rotor (300), and the pressing head (33) presses down the rotor (300) through the pressing cylinder (34).

3. The electric motor rotor mounting fixture of claim 2, wherein the drive assembly is hydraulically driven, pneumatically driven, motor driven, or manual.

4. A motor rotor mounting fixture according to claim 3, wherein the driving assembly is manual, the driving assembly comprises a rocker (321), a gear and a rack (322), the rack (322) is arranged on the frame (31) in a vertically movable manner, and the pressure head (33) is fixed at the lower end of the rack (322); the gear is arranged in the rack (31), and is meshed with the rack (322); the rocker (321) is arranged outside the frame (31), the rocker (321) is connected with the gear in a transmission manner, and the gear can be driven to rotate by rotating the rocker (321), so that the rack (322) moves up and down.

5. The electric motor rotor mounting fixture according to claim 1, wherein both ends of the first clamping plate (21) and the second clamping plate (22) are connected by threaded fasteners; or one end of the first clamping plate (21) is rotationally connected with one end of the second clamping plate (22), and the other end of the first clamping plate is connected with the other end of the second clamping plate through a threaded fastener.

6. The motor rotor mounting fixture according to claim 5, wherein,

The locking piece comprises at least two first bolts (231), and two ends of the first clamping plate (21) and the second clamping plate (22) are respectively in locking connection through the first bolts (231); or alternatively

The side surface of the first clamping plate (21) is provided with a first mounting groove (211), the side surface of the second clamping plate (22) is provided with a second mounting groove (221), the locking piece comprises a first screw rod (232) and a first nut (233), one end of the first screw rod (232) is rotatably connected in the second mounting groove (221), and the other end of the first screw rod (232) passes through the first mounting groove (211) and is then in threaded connection with the first nut (233); or alternatively

The side surface of the first clamping plate (21) is provided with a third mounting groove (212), the side surface of the second clamping plate (22) is provided with a fourth mounting groove (222), the locking piece comprises a second screw (234), a second nut (235), a cushion block (236) and a cam wrench (237), and one end of the second screw (234) is rotationally connected with the cam wrench (237); the cushion block (236) is sleeved on the second screw (234) and is positioned between the cam wrench (237) and the first clamping plate (21); the other end of the second screw rod (234) sequentially passes through the first clamping plate (21) and the second clamping plate (22) and then is in threaded connection with the second nut (235); the first clamping plate (21) and the second clamping plate (22) can be abutted or loosened by rotating the cam wrench (237); or alternatively

The locking piece comprises a connecting block (2301), a first rotating shaft (2302), a second rotating shaft (2303), a conical block (2304) and a second bolt (2305), one end of a first clamping plate (21) is connected with the connecting block (2301) through the first rotating shaft (2302), one end of a second clamping plate (22) is connected with the connecting block (2301) through the second rotating shaft (2303), the other end of the first clamping plate (21) is provided with a first clamping block (213), the other end of the second clamping plate (22) is provided with a second clamping block (223), the first clamping block (213) is located above the second clamping block (223), a conical groove is formed between the first clamping block (213) and the second clamping block (223), the conical block (2304) is installed in the conical groove, and the second bolt (2305) passes through the conical block (2304) and the second clamping block (223) to enable the first clamping plate (21) to be loosened by adjusting the position of the first clamping plate (21).

7. The electric motor rotor mounting fixture of claim 1, wherein an anti-slip structure is further provided between the arcuate slot (24) and the motor shaft (100).

8. The motor rotor mounting fixture according to claim 1, wherein the base (1) is in a U-shaped structure, the cavity (11) is a U-shaped cavity penetrating through the upper end face and the lower end face of the base (1), and the diameter of the cavity (11) is matched with the diameter of the pre-assembly part (200).

9. The motor rotor mounting fixture according to claim 1, wherein the base (1) and the clamping mechanism (2) are provided with handle portions for easy handling.

10. The electric machine rotor mounting fixture according to any of claims 1-9, further comprising an elastic support mechanism (5), said elastic support mechanism (5) being arranged in said cavity (11) for elastically supporting said pre-assembly (200).