CN210327335U

CN210327335U - Portable casing assembly guiding device for direct-drive motor

Info

Publication number: CN210327335U
Application number: CN201921558923.3U
Authority: CN
Inventors: 林果; 吴喜桥; 王立
Original assignee: Henan Normal University
Current assignee: Henan Normal University
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-04-14
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a direct drive motor's portable casing assembly guider, a pedestal, guide arm and guide ring, the guide arm is connected to the upper end of base, the stator is installed at the upper end center of base, the guide ring includes the mount table, the spring is established to the peripheral cover of guide arm, the upper and lower end difference butt journal stirrup and the base of spring, the inner wall circumference equipartition arc of mount table is perforated, the ball is established in the laminating of arc perforation, the lower extreme installation gland of mount table, ball inner exposes the outer wall of arc perforation and butt stator, the upper end laminating of mount table has heat insulating ring, gland and heat insulating ring are with the ball restriction in the arc perforation between the two, it has the casing to laminate on the heat insulating ring, the casing includes the second casing, the casing is impressed so that second casing interference fit impresses the stator downwards. The utility model discloses make concentric positioning accuracy reliable between casing and the stator, convenient operation effectively improves work efficiency, and the pressure equipment process is smooth and easy.

Description

Portable casing assembly guiding device for direct-drive motor

Technical Field

The utility model relates to a motor spare part assembly fixture field, more specifically the portable casing assembly guider who directly drives motor that says so relates to.

Background

The direct-drive motor is characterized by low rotating speed and high output torque, also called as torque servo, and different from the traditional motor, the direct-drive motor can be directly connected with a load, so that a speed reduction transmission mechanism such as a speed reducer, a gear box and the like is omitted, the structure is simple, the assembly is convenient, and the maintenance is free, so that the direct-drive motor is widely applied in some industries.

Directly drive the motor and mainly by the casing, the stator, the rotor, each part such as end cover is constituteed, the stator passes through interference fit and installs to the casing in, because the output torque who directly drives the motor is high, often the interference volume is got the great value in order to guarantee the firm of stator, just need accomplish through the heat jacket during casing and stator assembly like this, in the prior art, place the stator on the press fixed usually, then put into the casing oven heating to the uniform temperature (this temperature calculates according to the design value of interference volume), the workman takes thermal-insulated gloves to take out the casing rapidly and place it on the stator and aim at rightly, the press is pressed down the casing at last and is accomplished, there is following problem at this in-process: the casing and the stator are aligned and righted manually, workers feel the casing and no tool is guaranteed, the casing and the stator cannot be aligned and righted at each time, if the casing and the stator are not aligned and righted, the casing and the stator are deformed due to hard pressing of a press machine, even the casing and the stator cannot be pressed to half, great inconvenience and loss are caused, and improvement is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a portable casing assembly guider who directly drives motor for concentric positioning accuracy is reliable between casing and the stator, and convenient operation effectively improves work efficiency, and the pressure equipment process is smooth and easy.

The utility model provides a scheme of above-mentioned technical problem is:

a portable casing assembly guiding device of a direct-drive motor comprises a base, a guide rod and a guide ring, wherein the guide rod is symmetrically connected to the upper end of the base, a stator is fixedly mounted at the center of the upper end of the base, the guide ring comprises an annular mounting table, support lugs are symmetrically arranged on the outer edge of the mounting table and provided with support lug through holes which penetrate through from top to bottom, sliding bearings are arranged in the support lug through holes in an interference fit mode, the guide rod penetrates through the support lug through holes, the guide rod is in clearance fit with the sliding bearings, a spring is sleeved on the periphery of the guide rod, the upper end and the lower end of the spring are respectively abutted against the lower end face of the support lug and the upper end face of the base, a limiting cover is screwed on the upper end face of the guide rod and is attached to the upper end face of the support lug, arc-shaped through holes are evenly distributed in the circumferential direction of the annular inner wall of, the fenestrate cross-section of arc surpasss half of the cross-section of ball, the annular outer wall of arc perforation and butt stator is exposed to ball inner, the up end laminating of mount table is equipped with heat insulating ring, gland and heat insulating ring are with the ball restriction in the arc perforation between the two, the laminating is supported and is pressed there is the casing on the heat insulating ring, the casing includes the second casing that matches with the annular outer wall of stator, and the casing is impressed downwards and is driven the guide ring and move down so that the annular outer wall of stator is impressed along the guide arm to the inner wall interference fit of second casing together.

The stator comprises a cylindrical stator core and a stator winding embedded in a stator groove formed in the inner edge of the stator core, the upper end and the lower end of the stator winding exceed the stator core, the annular inner walls of the guide ring, the gland and the heat insulation ring and the annular outer wall of the stator core are arranged concentrically, and the diameter of the annular inner wall of the guide ring, the gland and the heat insulation ring is larger than that of the annular outer wall of the stator core.

The casing still includes the first casing that is located the second casing lower extreme, first casing and second casing are integrated into one piece and the internal diameter of first casing is greater than the internal diameter of second casing, the inner edge of heat insulating ring is equipped with the heat insulating ring flange that upwards extends, the annular outer wall of the annular inner wall laminating heat insulating ring flange of first casing.

The utility model discloses an outstanding effect is: through the setting of guide ring, heat insulating ring for concentric positioning accuracy is reliable between casing and the stator, and convenient operation effectively improves work efficiency, and the temperature of casing can not reduce fast moreover, makes the pressure equipment work laborsaving convenient, through the tangent contact of ball between guide ring and the stator simultaneously, and frictional force is little, and the resistance can not be very big during the pressure equipment, and the pressure equipment process is smooth and easy.

Drawings

Fig. 1 is a schematic structural view of the housing of the present invention before assembly;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is a schematic structural view of the assembled case of the present invention;

fig. 4 is a perspective view of a first viewing angle of the guide ring of the present invention;

fig. 5 is a perspective view of a second viewing angle of the guide ring of the present invention;

fig. 6 is a perspective view of the stator of the present invention.

In the figure: the motor comprises a base 1, a base screw hole 11, a base mounting counter bore 12, a base convex column 13, a spring groove 14, a guide rod 2, a spring 21, a stator 3, a stator winding 31, a stator iron core 32, a support ring 4, a protective cover 41, a protective cover mounting seat 42, a positioning ring 43, a machine shell 5, a first shell 51, a second shell 52, a guide ring 6, a mounting table 61, a mounting table convex ring 62, a support lug 63, a support lug through hole 64, a sliding bearing 65, a mounting table lower convex body 66, an arc-shaped through hole 67, a gland 7, a ball 71, a heat insulation ring 8, a heat insulation ring flange 81 and a limit cover 9.

Detailed Description

Example (b):

as shown in fig. 1-6, a portable casing assembly guiding device for a direct drive motor comprises a base 1, a guide rod 2 and a guide ring 6, wherein the upper end of the base 1 is symmetrically connected with the guide rod 2, a base screw hole 11 is arranged on the base 1, the bottom end of the guide rod 2 is a threaded section, the outer diameter of the threaded section is smaller than the outer diameter of the upper part of the guide rod 2, and the bottom end of the guide rod 2 is screwed into the base screw hole 11 until the upper end surface of the base 1 is attached to the step part of the lower end of the guide. Base installation counter bores 12 are evenly distributed on the base 1 in the peripheral circumferential direction of the base screw hole 11, and screws are screwed into the base installation counter bores 12 to achieve installation and fixation of the base 1.

The upper end center fixed mounting of base 1 has stator 3, and the up end center of base 1 is equipped with the base projection 13 that upwards extends, and support ring 4 and holding ring 43 are installed to the up end of base 1, and the up end of base 1 is equipped with the annular groove, and support ring 4, holding ring 43 insert in the annular groove with clearance fit respectively, base projection 13, support ring 4, holding ring 43 and guide arm 2 distribute from inside to outside in proper order, the height of base projection 13, support ring 4 and holding ring 43 reduces in proper order, the outer wall laminating of base projection 13 is equipped with stator 3, stator 3 includes cylindrical stator core 32 and inlays stator winding 31 in the stator slot that stator core 32 established, separates through insulating between stator winding 31 and the stator core 32, stator core 32 is all surpassed to the upper and lower extreme of stator winding 31, and stator core 32 and stator winding 31 are the conventional technique of stator 3, not described in detail, the inner wall of the stator core 32 is attached to the outer wall of the base boss 13 (the two are in clearance fit), and the lower end surface of the stator core 32 is attached to the upper end surface of the support ring 4 (the lower end surface of the stator core 32 is the lower end surface located at the periphery of the stator winding 31).

The guide ring 6 includes annular mount table 61, the outer fringe symmetry of mount table 61 is equipped with journal stirrup 63, journal stirrup 63 is equipped with journal stirrup through-hole 64 that runs through from top to bottom, interference fit is equipped with slide bearing 65 in the journal stirrup through-hole 64, guide rod 2 passes journal stirrup through-hole 64 and guide rod 2 and slide bearing 65 clearance fit, the peripheral cover of guide rod 2 is equipped with spring 21, the lower terminal surface of lower terminal surface and base 1 of butt journal stirrup 63 respectively of spring 21, base 1's up end are equipped with spring groove 14, and spring 21's lower extreme is located spring groove 14, and spring 21 plays initial position and supports guide ring 6 (including casing 5) and the effect that resets after guide ring 6 pushes down.

The upper end face of the guide rod 2 is in threaded connection with a limiting cover 9, the limiting cover 9 is attached to the upper end face of the support lug 63, and the limiting cover 9 plays a limiting role when the guide ring 6 rebounds upwards.

Annular inner wall circumference equipartition arc of mount table 61 perforates 67, arrange the ball 71 that distributes from top to bottom in the perforation 67 laminating of arc, gland 7 is installed to the lower terminal surface of mount table 61, and the lower extreme outside of mount table 61 is equipped with downward convex mount table lower convex body 66, the inner edge of gland 7's outer fringe laminating mount table lower convex body 66.

The cross section of the arc-shaped through hole 67 exceeds half of the cross section of the ball 71, so that the ball 71 can be placed into the arc-shaped through hole 67 only along the vertical direction, and the ball 71 cannot be pulled out from the horizontal direction after being placed.

The inner ends of the balls 71 are exposed from the arc-shaped through holes 67 and abut against the annular outer wall of the stator 3 (actually, the annular outer wall of the stator core 32), so that the balls 71 can perform a rolling friction function in the whole assembly process.

The upper end surface of the mounting table 61 is provided with the heat insulation ring 8 in a fitting manner, the press cover 7 and the heat insulation ring 8 limit the balls 71 in the arc-shaped through holes 67 between the press cover 7 and the heat insulation ring 8, namely, the inner sides of the press cover 7 and the heat insulation ring 8 block a part of the upper end surface and the lower end surface of the arc-shaped through holes 67, and the total height of all the balls 71 in the device after being fitted is lower than that of the arc-shaped through holes 67, namely, the balls 71 can rotate up and down under the action of friction force.

The heat insulation ring 8 is attached to and abuts against the machine shell 5, the outer edge of the upper end face of the mounting table 61 is provided with a mounting table convex ring 62 extending upwards, and the outer edge of the heat insulation ring 8 is attached to the inner edge of the mounting table convex ring 62. The heat insulation ring 8 can prevent heat of the casing 5 from being transferred downwards, the temperature of the casing 5 is prevented from being rapidly reduced, and the heat insulation ring 8 can be made of polyether ether ketone (PEEK) materials, is high in temperature resistance, easy to process, high in mechanical strength and poor in heat conductivity.

The casing 5 includes the second casing 52 that matches with the annular outer wall of stator 3, the casing 5 still includes the first casing 51 that is located second casing 52 lower extreme, first casing 51 and second casing 52 are integrated into one piece and the internal diameter of first casing 51 is greater than the internal diameter of second casing 52, the inner edge of heat insulating ring 8 is equipped with the heat insulating ring flange 81 that upwards extends, the annular outer wall of heat insulating ring flange 81 is laminated to the annular inner wall of first casing 51, can ensure like this that casing 5 pinpoints and puts into.

The housing 5 is pressed downward to move the guide ring 6 downward along the guide bar 2 so that the inner wall of the second housing 52 is press-fitted into the annular outer wall of the stator 3. By pressing the upper end of the housing 5 by means of a press and applying a downward force, the housing 5, together with the guide ring 6, the heat-insulating ring 8, the gland 7 and the balls 71, is pressed downward and compresses the spring 21, wherein the balls 71 are pressed against the outer wall of the stator core 32 during the downward movement and there is rolling friction between the two, the rolling friction force generated by the balls 71 is not important until the lower end face of the guide ring 6 is pressed against the upper end face of the positioning ring 43 (in fact, the lower end face of the mounting table lower projection 66 is pressed against the upper end face of the positioning ring 43), when the stator core 32 is completely located in the second housing 52 (this way is suitable for a housing 5 with an inner wall having no step press-fitting location). When the balls 71 no longer abut against the outer wall of the stator core 32, the balls 71 do not come off. After the assembly is completed, the press-fitted casing 5 (including the stator 3) is taken out, and the guide ring 6 slowly rises under the action of the restoring force of the spring 21 until the upper end face of the support lug 63 is abutted against the limit cover 9.

The annular inner walls of the guide ring 6, the gland 7 and the heat insulation ring 8 are concentrically arranged with the annular outer wall of the stator core 32, and the diameters of the annular inner walls of the guide ring 6, the gland 7 and the heat insulation ring 8 are larger than the diameter of the annular outer wall of the stator core 32.

The upper end of the base convex column 13 is fixedly connected with a protective cover 41, the protective cover 41 is annular, the protective cover 41 covers the stator winding 31 at the upper end, the lower end face of the outer edge of the protective cover 41 is attached to the upper end face of the stator core 32 (the upper end face of the stator core 32 at the position is the upper end face of the stator winding 31 at the periphery), and therefore the stator winding 31 can be prevented from being interfered by external factors (such as impurity particles and the like falling on the stator winding 31).

The inner edge of the shield 41 is integrally formed with horizontally distributed shield mounting seats 42, and the shield mounting seats 42 are attached to the upper end surface of the base convex column 13. Wherein the lower outer edge of the shield mounting seat 42 abuts the upper inner edge of the stator core 32.

The above embodiments are only used for illustrating the present invention, and are not intended to limit the present invention, and those skilled in the relevant art can make various changes without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention.

Claims

1. The utility model provides a direct drive motor's portable casing assembly guider which characterized in that: including base (1), guide arm (2) and guide ring (6), the upper end symmetric connection of base (1) has guide arm (2), and the upper end center fixed mounting of base (1) has stator (3), guide ring (6) include annular mount table (61), the outer fringe symmetry of mount table (61) is equipped with journal stirrup (63), journal stirrup (63) are equipped with journal stirrup through-hole (64) that run through from top to bottom, interference fit is equipped with slide bearing (65) in journal stirrup through-hole (64), guide arm (2) pass journal stirrup through-hole (64) and guide arm (2) and slide bearing (65) clearance fit, the peripheral cover of guide arm (2) is equipped with spring (21), the upper and lower extreme of spring (21) is the lower terminal surface of butt journal stirrup (63) and the up end of base (1) respectively, and the up end spiro union of guide arm (2) has spacing lid (9), the up end of spacing lid (9) laminating journal stirrup (63), annular inner wall circumference equipartition arc perforation (67) of mount table (61), the interior laminating of arc perforation (67) is equipped with range ball (71) that distributes from top to bottom, gland (7) are installed to the lower terminal surface of mount table (61), the cross-section of arc perforation (67) exceeds half of the cross-section of ball (71), ball (71) inner exposes the annular outer wall of arc perforation (67) and butt stator (3), the up end laminating of mount table (61) is equipped with heat insulating ring (8), gland (7) and heat insulating ring (8) restrict ball (71) in arc perforation (67) between the two, it has casing (5) to laminate on heat insulating ring (8), casing (5) include second casing (52) that matches with the annular outer wall of stator (3), the shell (5) is pressed downwards to drive the guide ring (6) to move downwards along the guide rod (2) so that the inner wall of the second shell (52) is pressed into the annular outer wall of the stator (3) in an interference fit mode.

2. The portable casing assembly guide device for the direct drive motor as set forth in claim 1, wherein: stator (3) include cylindrical stator core (32) and inlay stator winding (31) in the stator inslot that stator core (32) inner edge was established, stator winding (31) all surpass stator core (32) in the upper and lower end, the annular inner wall of guide ring (6), gland (7) and heat insulating ring (8) sets up with the annular outer wall of stator core (32) is concentric, the annular inner wall diameter of guide ring (6), gland (7) and heat insulating ring (8) is greater than the annular outer wall diameter of stator core (32).

3. The portable casing assembly guide device for the direct drive motor as set forth in claim 1, wherein: casing (5) still include first casing (51) that is located second casing (52) lower extreme, first casing (51) and second casing (52) are integrated into one piece and the internal diameter of first casing (51) is greater than the internal diameter of second casing (52), the inner edge of heat insulating ring (8) is equipped with the heat insulating ring flange (81) that upwards extends, the annular outer wall of the annular inner wall laminating heat insulating ring flange (81) of first casing (51).