CN204327566U - A kind ofly be applicable to the axle of cold setting and the assembly structure of rotor - Google Patents

A kind ofly be applicable to the axle of cold setting and the assembly structure of rotor Download PDF

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Publication number
CN204327566U
CN204327566U CN201420676896.0U CN201420676896U CN204327566U CN 204327566 U CN204327566 U CN 204327566U CN 201420676896 U CN201420676896 U CN 201420676896U CN 204327566 U CN204327566 U CN 204327566U
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China
Prior art keywords
rotor
axle
trimming
projection
major axis
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Expired - Fee Related
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CN201420676896.0U
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Chinese (zh)
Inventor
香志光
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香志光
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Abstract

The utility model discloses and is a kind ofly applicable to the axle of cold setting and the assembly structure of rotor, comprise rotor and the axle being provided with major axis portion, described major axis portion is provided with rotor installation position, described rotor is socketed on the rotor installation position of axle, described major axis portion outer rim is provided with trimming, outer rim local in described major axis portion is provided with the projection in certain taper, described major axis portion axle center place hollow out DRIVE SCREWS.Of the present utility modelly be applicable to the axle of cold setting and the assembly structure of rotor, axle increases the improved procedure physically such as trimming and tapering, increase the tightening force turning and join rear axle and rotor, realize the reliable assembling of axle and rotor.

Description

A kind ofly be applicable to the axle of cold setting and the assembly structure of rotor
Technical field
The utility model relates to compressor field, is particularly applicable to the axle of cold setting and the assembly structure of rotor about a kind of.
Background technique
In refrigeration compressor, the assembling of axle and rotor is realized by interference hot charging usually.Interference hot charging mainly utilizes the performance of expanding with heat and contract with cold of material.The rotor of expanded by heating is enclosed within axle, after rotor restores, produces the tightening force to axle, guarantee axle and rotor compact siro spinning technology.Hot charging mode needs rotor heating, and the deformation of assembly process rotor is comparatively large, easily produces quality problems, particularly some small-sized machines, uses hot charging mode often to cause outstanding quality problems due to its excessive deformation.
Model utility content
In view of this, the utility model, for solving the problems of the technologies described above, provides a kind of and is applicable to the axle of cold setting and the assembly structure of rotor, axle increases the improved procedure physically such as trimming and tapering, increase the tightening force turning and join rear axle and rotor, realize the reliable assembling of axle and rotor.
The purpose of this utility model is achieved through the following technical solutions:
A kind ofly be applicable to the axle of cold setting and the assembly structure of rotor, comprise the axle, the rotor that are provided with major axis portion, described major axis portion is provided with rotor installation position, described rotor is socketed on the rotor installation position of axle, it is characterized in that: described major axis portion outer rim is provided with trimming, outer rim local in described major axis portion is provided with the projection in certain taper, described major axis portion axle center place hollow out DRIVE SCREWS.
Described trimming refers to that neat edge in the axial direction, major axis portion is repaiied and cuts; Described projection refers to the major axis portion projection with certain taper in the axial direction.Owing to being provided with trimming and projection in major axis portion outer rim, shaft section becomes irregular approximate round shape from the circle of rule, coordinate with the regular circle shapes inside rotor, and rotor internal diameter size is slightly less than axle external diameter size, therefore axle and rotor interference fit, pushes rotor installation position by the mode of impressed pressure by rotor, and axle and rotor are owing to existing magnitude of interference, rotor produces tightening force to axle, realizes the reliable assembling of axle and rotor.Described major axis portion axle center place hollow out DRIVE SCREWS, due to the extruding of screw thread, axially outside swells; Rotor makes axle swell towards radial direction by installing screw additional after loading axle; Do not increase rotor press-fit the prerequisite of difficulty under, improve the magnitude of interference of axle and rotor.
Described projection can be arranged on top or the bottom of rotor installation position; Described projection is arranged on the top of rotor installation position, and the peak of projection is positioned at the end of rotor installation position; Described projection is arranged on the bottom of rotor installation position, and the peak of projection is positioned at rotor installation position and is greater than 3mm with the distance of end.
If projection is arranged on the top of rotor installation position, i.e. the rotor inlet place of rotor installation position, then the peak of projection is positioned at the end of rotor installation position, namely axle screws in the ingress, one end of rotor.Now the peak of projection and rotor internal diameter extrude mutually, produce active force, and rotor is subject to the constraint of active force and locked on rotor installation position firmly.
If projection is arranged on the bottom of rotor installation position, i.e. the end of rotor installation position, then the peak of projection need be arranged on the position of rotor installation position distance end more than 3mm.
In addition, can arrange projection on the top of rotor installation position and bottom, now the projection peak of bottom can be arranged on the end of rotor installation position simultaneously.
Described trimming comprises whole rotor installation position and the region by rotor installation position to the end of described axle.
Owing to there is interference degree between axle and rotor, for subtracting trochantinian installation difficulty, except the trimming on rotor installation position, also need the region between the end of axle to rotor installation position that trimming is set.
Described trimming is rectangular, and the width w of described trimming and the diameter r of axle meets relation: (5/8) r≤w≤r.
In the cross sectional view of axle, trimming wide is the string on axle cross-sectional view.When the central angle that string is corresponding is 60 °, width w is equal with diameter r; When the central angle that string is corresponding is 30 °, width w and diameter r 5/8ths value equal.The Main Function of trimming is the interference degree that axle and rotor are reduced in local, makes the interference fit of axle and rotor reach perfect condition.In addition, due to the existence of trimming, an outer fringe surface part for axle is cambered surface, a part is plane, and is cambered surface inside rotor, and axle and rotor are increased at the active force of the contact segment of trimming place, and namely axle and rotor obtain larger tightening force.
Model utility people, in conjunction with the knowledge of self, finds after the contrast of many experiments, and when the number of trimming is different, the length that string is corresponding needs to make adjustment, to reach optimum efficiency.When considering that trimming number is greater than 3, gripping effect improves not obvious, therefore using the trimming number of less than 3 and 3 as optimal way.
The number of described trimming is 1, and the width w of described trimming and the diameter r of axle meets relation: (3/4) r≤w≤r.
The number of described trimming is 2, and the position of described two trimmings is symmetric about the axis, and the width w of described trimming and the diameter r of axle meets relation: (5/8) r≤w≤(7/8) r.
The number of described trimming is 3, and the position of described three trimmings becomes 120 ° of angles with axis, and the width w of described trimming and the diameter r of axle meets relation: (5/8) r≤w≤(3/4) r.
The tapering of described projection is 5 °-10 °, is highly less than (1/5) r.
The tapering of projection can arrange multistage tapering, is followed successively by one-level tapering, secondary tapering etc. by the peak of projection.Wherein, for ensure rotor be socketed in surface of contact in projection stressed evenly, reduce the phenomenon that stress concentrates and occur, the size of N level tapering must be less than (N+1) level tapering, and wherein said N is natural number.
Accompanying drawing explanation
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in accompanying drawing is not formed any restriction of the present utility model.
Fig. 1 is the schematic diagram of the axle being applicable to cold setting of embodiment 1 of the present utility model and the assembly structure of rotor.
Fig. 2 is the cross-sectional view of the axle of the axle being applicable to cold setting of embodiment 1 of the present utility model and the assembly structure of rotor.
Fig. 3 is the schematic diagram of the axle being applicable to cold setting of embodiment 2 of the present utility model and the assembly structure of rotor.
Fig. 4 is the cross-sectional view of the axle of the axle being applicable to cold setting of embodiment 2 of the present utility model and the assembly structure of rotor.
Fig. 5 is the schematic diagram of the axle being applicable to cold setting of embodiment 3 of the present utility model and the assembly structure of rotor.
Fig. 6 is the cross-sectional view of the axle of the axle being applicable to cold setting of embodiment 3 of the present utility model and the assembly structure of rotor.
Fig. 7 is the schematic diagram of the axle being applicable to cold setting of embodiment 4 of the present utility model and the assembly structure of rotor.
Fig. 8 is the cross-sectional view of the axle of the axle being applicable to cold setting of embodiment 4 of the present utility model and the assembly structure of rotor.
Fig. 9 is the schematic diagram of the axle being applicable to cold setting of embodiment 5 of the present utility model and the assembly structure of rotor.
Figure 10 is the cross-sectional view of the axle of the axle being applicable to cold setting of embodiment 5 of the present utility model and the assembly structure of rotor.
Figure 11 is the schematic diagram of the axle being applicable to cold setting of embodiment 6 of the present utility model and the assembly structure of rotor.
Figure 12 is the cross-sectional view of the axle of the axle being applicable to cold setting of embodiment 6 of the present utility model and the assembly structure of rotor.
Embodiment
The utility model to be described in further detail below in conjunction with accompanying drawing and embodiment for the ease of it will be appreciated by those skilled in the art that.
Please refer to Fig. 1-2, the utility model embodiment 1 comprises:
A kind ofly be applicable to the axle of cold setting and the assembly structure of rotor, comprise the axle 11, the rotor 12 that are provided with major axis portion, major axis portion is provided with rotor installation position 13, rotor 12 is socketed on the rotor installation position 13 of axle 11, major axis portion outer rim is provided with trimming 14, outer rim local in major axis portion is provided with the projection 15 in certain taper, major axis portion axle center place 16 hollow out DRIVE SCREWS 17.
Projection 15 is arranged on the top of rotor installation position 13, and the peak of projection 15 is positioned at the end of rotor installation position 13.
Trimming 14 comprises the region of whole rotor installation position 13 and the end 18 by rotor installation position 13 to axle 11.
Trimming 14 is rectangular, and the number of trimming 14 is 1, and the width w1 of the trimming 14 and diameter r1 of axle 11 meets relation: (3/4) r1≤w1≤r1.Wherein in the present embodiment, the value of diameter r1 is 16mm, and the value of width w1 is 13mm.
The tapering of projection 15 only has one-level tapering, and tapering is 5 °, and the rising height of the peak of projection 15 is 2.8mm.
The beneficial effect of the present embodiment 1: compared with traditional hot charging, assembling of the present utility model does not need heating, and the quality of rotor can better be ensured; Putting at the tapering of bottom, rotor installation position is the projection of 5 ° and single trimming, ensure that the magnitude of interference of axle and rotor abundance, and axle and the rotor banding degree of assembling are better.
Please refer to Fig. 3-4, the utility model embodiment 2 comprises:
A kind ofly be applicable to the axle of cold setting and the assembly structure of rotor, comprise the axle 21, the rotor 22 that are provided with major axis portion, major axis portion is provided with rotor installation position 23, rotor 22 is socketed on the rotor installation position 23 of axle 21, major axis portion outer rim is provided with trimming 24, outer rim local in major axis portion is provided with the projection 25 in certain taper, major axis portion axle center place 26 hollow out DRIVE SCREWS 27.
Projection 25 is arranged on the bottom of rotor installation position 23, and the peak of projection 25 is positioned at rotor installation position 23 and is 4mm with the distance of end.
Trimming 24 comprises the region of whole rotor installation position 23 and the end 28 by rotor installation position 23 to axle.
Trimming 24 is rectangular, and the number of trimming is 2, and the position of two trimmings is symmetric about the axis, and 24 width w2 of trimming and the diameter r2 of axle meet relation: (5/8) r2≤w2≤(7/8) r2.Wherein in the present embodiment, the value of diameter r2 is 14mm, and the value of width w2 is 10mm.
The tapering of projection 25 only has one-level tapering, and tapering is 6 °, and the rising height of the peak of projection 25 is 2.6mm.
The beneficial effect of the present embodiment 2: compared with traditional hot charging, assembling of the present utility model does not need heating, and the quality of rotor can better be ensured; The tapering being arranged on bottom, rotor installation position is the projection of 6 ° and the two trimmings being symmetrically distributed in axle both sides, and ensure that the magnitude of interference of axle and rotor abundance, axle and the rotor banding degree of assembling are better.
Please refer to Fig. 5-6, the utility model embodiment 3 comprises:
A kind ofly be applicable to the axle of cold setting and the assembly structure of rotor, comprise the axle 31, the rotor 32 that are provided with major axis portion, major axis portion is provided with rotor installation position 33, rotor 32 is socketed on the rotor installation position 33 of axle 31, major axis portion outer rim is provided with trimming 34, outer rim local in major axis portion is provided with the projection in certain taper, major axis portion axle center place 36 hollow out DRIVE SCREWS 37.
The peak that the upper and lower of rotor installation position 33 is provided with projection 351 and projection 352, two place's projection is all positioned at the end of rotor installation position 33.
Trimming 34 comprises the region of whole rotor installation position 33 and the end 38 by rotor installation position 33 to axle 31.
Trimming 34 is rectangular, and the number of trimming is 3, and the position of three trimmings becomes 120 ° of angles with axis, and the width w3 of the trimming 34 and diameter r3 of axle 31 meets relation: (5/8) r3≤w3≤(3/4) r3.Wherein in the present embodiment, the value of diameter r3 is 16mm, and the value of width w3 is 12mm.
The tapering of projection is provided with secondary tapering, and wherein one-level tapering is 3 °, and secondary tapering is 7 °, and the rising height of the peak of projection is 2.9mm.
The beneficial effect of the present embodiment 3: compared with traditional hot charging, assembling of the present utility model does not need heating, and the quality of rotor can better be ensured; Be arranged on two projections of upper and lower, rotor installation position and be symmetrically distributed in three trimmings of axle outer rim, wherein projection is provided with secondary tapering, one-level tapering is 3 °, secondary tapering is 7 °, ensure that the magnitude of interference of axle and rotor abundance, and axle and the rotor banding degree of assembling are better.
Please refer to Fig. 7-8, the utility model embodiment 4 comprises:
A kind ofly be applicable to the axle of cold setting and the assembly structure of rotor, comprise the axle 41, the rotor 42 that are provided with major axis portion, major axis portion is provided with rotor installation position 43, rotor 42 is socketed on the rotor installation position 43 of axle 41, major axis portion outer rim is provided with trimming 44, outer rim local in major axis portion is provided with the projection 45 in certain taper, major axis portion axle center place 46 hollow out DRIVE SCREWS 47.
Projection 45 is arranged on the top of rotor installation position 43, and the peak of projection 45 is positioned at the end of rotor installation position 43;
Trimming 44 comprises the region of whole rotor installation position 43 and the end 48 by rotor installation position 43 to axle 41.
Trimming 44 is rectangular, and the number of trimming is 2, and the position of two trimmings is symmetric about the axis, and the width w4 of trimming and the diameter r4 of axle meets relation: (5/8) r4≤w4≤(7/8) r4.Wherein in the present embodiment, the value of diameter r4 is 16mm, and the value of width w4 is 12mm.
The tapering of projection 45 is provided with secondary tapering, and wherein one-level tapering is 3 °, and secondary tapering is 8 °, and the rising height of the peak of projection 45 is 3mm.
The beneficial effect of the present embodiment 4: compared with traditional hot charging, assembling of the present utility model does not need heating, and the quality of rotor can better be ensured; Be arranged on the projection on top, rotor installation position and be symmetrically distributed in two trimmings of axle both sides, wherein projection is provided with secondary tapering, and one-level tapering is 3 °, secondary tapering is 8 °, ensure that the magnitude of interference of axle and rotor abundance, and axle and the rotor banding degree of assembling are better.
Please refer to Fig. 9-10, the utility model embodiment 5 comprises:
A kind ofly be applicable to the axle of cold setting and the assembly structure of rotor, comprise the axle 51, the rotor 52 that are provided with major axis portion, major axis portion is provided with rotor installation position 53, rotor 52 is socketed on the rotor installation position 53 of axle 51, major axis portion outer rim is provided with trimming 54, outer rim local in major axis portion is provided with the projection 55 in certain taper, major axis portion axle center place 56 hollow out DRIVE SCREWS 57.
Projection 55 is arranged on the top of rotor installation position 53, and the peak of projection 55 is positioned at the end of rotor installation position 53.
Trimming 54 comprises the region of whole rotor installation position 53 and the end 58 by rotor installation position 53 to axle 51.
Trimming 54 is rectangular, and the number of trimming is 3, and the position of three trimmings becomes 120 ° of angles with axis, and the width w5 of trimming and the diameter r5 of axle meets relation: (5/8) r5≤w5≤(3/4) r5.Wherein in the present embodiment, the value of diameter r5 is 14mm, and the value of width w5 is 9mm.
The tapering of projection 55 only has one-level tapering, and tapering is 6 °, and the rising height of the peak of projection 55 is 2.5mm.
The beneficial effect of the present embodiment 5: compared with traditional hot charging, assembling of the present utility model does not need heating, and the quality of rotor can better be ensured; The tapering being arranged on top, rotor installation position is the projection of 6 ° and three trimmings being symmetrically distributed in axle outer rim, and ensure that the magnitude of interference of axle and rotor abundance, axle and the rotor banding degree of assembling are better.
Please refer to Figure 11-12, the utility model embodiment 6 comprises:
A kind ofly be applicable to the axle of cold setting and the assembly structure of rotor, comprise the axle 61, the rotor 62 that are provided with major axis portion, major axis portion is provided with rotor installation position 63, rotor 62 is socketed on the rotor installation position 63 of axle 61, major axis portion outer rim is provided with trimming 64, outer rim local in major axis portion is provided with the projection 65 in certain taper, major axis portion axle center place 66 hollow out DRIVE SCREWS 67.
Projection 65 is arranged on the bottom of rotor installation position 63, and the peak of projection 65 is positioned at rotor installation position 63 and is greater than 3mm with the distance of end.
Trimming 64 comprises the region of whole rotor installation position and the end 68 by rotor installation position 63 to axle 61.
Trimming 64 is rectangular, and the number of trimming 64 is 1, and the width w6 of the trimming 64 and diameter r6 of axle 61 meets relation: (3/4) r6≤w6≤r6.Wherein in the present embodiment, the value of diameter r6 is 16mm, and the value of width w6 is 14mm.
The tapering of projection 65 only has one-level tapering, and tapering is 7 °, and the rising height of the peak of projection 65 is 2.9mm.
The beneficial effect of the present embodiment 6: compared with traditional hot charging, assembling of the present utility model does not need heating, and the quality of rotor can better be ensured; The tapering being arranged on bottom, rotor installation position is the projection of 7 ° and the single trimming being distributed in axle outer rim, and ensure that the magnitude of interference of axle and rotor abundance, axle and the rotor banding degree of assembling are better.
Finally should be noted that; above embodiment illustrates the technical solution of the utility model; but not the restriction to the utility model protection domain; although done to explain to the utility model with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical solution of the utility model or equivalent replacement, and not depart from essence and the scope of technical solutions of the utility model.

Claims (8)

1. one kind is applicable to the axle of cold setting and the assembly structure of rotor, comprise rotor and the axle being provided with major axis portion, described major axis portion is provided with rotor installation position, described rotor is socketed on the rotor installation position of axle, it is characterized in that: described major axis portion outer rim is provided with trimming, outer rim local in described major axis portion is provided with the projection in certain taper, described major axis portion axle center place hollow out DRIVE SCREWS.
2. be according to claim 1ly applicable to the axle of cold setting and the assembly structure of rotor, it is characterized in that: described projection can be arranged on top or the bottom of rotor installation position; Described projection is arranged on the top of rotor installation position, and the peak of projection is positioned at the end of rotor installation position; Described projection is arranged on the bottom of rotor installation position, and the peak of projection is positioned at rotor installation position and is greater than 3mm with the distance of end.
3. be according to claim 1ly applicable to the axle of cold setting and the assembly structure of rotor, it is characterized in that: described trimming comprises whole rotor installation position and the region by rotor installation position to the end of described axle.
4. be according to claim 1ly applicable to the axle of cold setting and the assembly structure of rotor, it is characterized in that: described trimming is rectangular, the width w of described trimming and the diameter r of axle meets relation: 5r/8≤w≤r.
5. be according to claim 4ly applicable to the axle of cold setting and the assembly structure of rotor, it is characterized in that: the number of described trimming is 1, the width w of described trimming and the diameter r of axle meets relation: 3r/4≤w≤r.
6. be according to claim 4ly applicable to the axle of cold setting and the assembly structure of rotor, it is characterized in that: the number of described trimming is 2, the position of described two trimmings is symmetric about the axis, and the width w of described trimming and the diameter r of axle meets relation: 5r/8≤w≤7r/8.
7. be according to claim 4ly applicable to the axle of cold setting and the assembly structure of rotor, it is characterized in that: the number of described trimming is 3, the position of described three trimmings becomes 120 ° of angles with axis, the width w of described trimming and the diameter r of axle meets relation: 5r/8≤w≤3r/4.
8. be according to claim 2ly applicable to the axle of cold setting and the assembly structure of rotor, it is characterized in that: the tapering of described projection is 5 °-10 °, is highly less than 1r/5.
CN201420676896.0U 2014-11-13 2014-11-13 A kind ofly be applicable to the axle of cold setting and the assembly structure of rotor Expired - Fee Related CN204327566U (en)

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Application Number Priority Date Filing Date Title
CN201420676896.0U CN204327566U (en) 2014-11-13 2014-11-13 A kind ofly be applicable to the axle of cold setting and the assembly structure of rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420676896.0U CN204327566U (en) 2014-11-13 2014-11-13 A kind ofly be applicable to the axle of cold setting and the assembly structure of rotor

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CN204327566U true CN204327566U (en) 2015-05-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104358703A (en) * 2014-11-13 2015-02-18 香志光 Assembly structure for shaft and rotor fit for cold assembling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104358703A (en) * 2014-11-13 2015-02-18 香志光 Assembly structure for shaft and rotor fit for cold assembling

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20150513

Termination date: 20161113