CN220794290U - Spring mounting structure and encoder - Google Patents
Spring mounting structure and encoder Download PDFInfo
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- CN220794290U CN220794290U CN202322492833.1U CN202322492833U CN220794290U CN 220794290 U CN220794290 U CN 220794290U CN 202322492833 U CN202322492833 U CN 202322492833U CN 220794290 U CN220794290 U CN 220794290U
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- 230000000670 limiting effect Effects 0.000 claims abstract description 61
- 238000000034 method Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 25
- 241001391944 Commicarpus scandens Species 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a spring mounting structure and an encoder, wherein the spring mounting structure comprises a mounting shaft, a spring and a radial limiting part, the mounting shaft is provided with a mounting end, the spring is provided with a connecting end so as to be fixedly connected with the mounting end, the radial limiting part is connected with the mounting shaft and is positioned at the radial outer side of the connecting end so as to limit the radial deformation of the connecting end, the spring is provided with the connecting end so as to be fixedly connected with the mounting end, one end of the spring, which is away from the connecting end, is used for connecting a transmission structure, so that the transmission structure and the mounting shaft form flexible connection to isolate the transmission structure from the mounting shaft, the vibration suffered by the transmission structure is prevented from being transmitted to the mounting shaft, and meanwhile, the radial limiting part is connected with the mounting shaft and is positioned at the outer side of the connecting end so as to limit the radial deformation of the connecting end along the radial direction of the connecting end so as to prevent the spring from deforming along the radial direction of the connecting end due to the transmission torque, and the fixed position of the connecting end and the mounting end from being broken, and the problem that the fixed position of the spring of the conventional encoder is easy to break is solved.
Description
Technical Field
The utility model relates to the technical field of encoders, in particular to a spring mounting structure and an encoder.
Background
At present, the encoder usually transmits torque through a spring so that the encoder can form flexible connection with a driving device, and the encoder is prevented from being damaged due to vibration. However, the springs of the existing encoders are usually directly fixed on the shaft, so that stress concentration occurs at the fixing position, and the springs deform along the radial direction when torque is transmitted, so that the fixing position of the springs is easy to break.
Disclosure of Invention
The utility model mainly aims to provide a spring mounting structure and an encoder, and aims to solve the problem that a fixing part of a spring of the conventional encoder is easy to break.
In order to achieve the above object, the present utility model provides a spring mounting structure comprising:
a mounting shaft having a mounting end;
the spring is provided with a connecting end and is fixedly connected with the mounting end; the method comprises the steps of,
and the radial limiting part is connected with the mounting shaft and is positioned at the radial outer side of the connecting end and used for limiting the radial deformation of the connecting end along the connecting end.
Optionally, the radial limiting part comprises a limiting sleeve sleeved on the radial outer side of the connecting end.
Optionally, the mounting end includes a first shaft section and a second shaft section connected to the first shaft section, an outer diameter of the first shaft section is smaller than an outer diameter of the second shaft section to form a first positioning step surface toward the spring, wherein:
the connecting end of the spring is sleeved on the first shaft section and is fixedly connected to the first positioning step surface; and/or the number of the groups of groups,
and the limiting sleeve is sleeved on the second shaft section.
Optionally, an annular limiting groove is defined between the inner surface of the limiting sleeve and the radial direction of the mounting shaft, wherein:
the groove width of the annular limiting groove is L1, and L1 is more than or equal to 3.2mm and less than or equal to 3.4mm; and/or the number of the groups of groups,
the groove depth of the annular limiting groove is L2, and L2 is more than or equal to 8mm and less than or equal to 10mm.
Optionally, the stop collar is detachably connected to the mounting shaft.
Optionally, the stop collar is sleeved on the installation shaft through a threaded connection structure.
Optionally, the limit sleeve is welded to the mounting shaft; or,
the limiting sleeve is riveted on the mounting shaft through a rivet structure.
Optionally, the installation axle includes along its axial distribution's little axle section and big axle section be formed with between little axle section with big axle section towards the second location step face of spring, the stop collar cover is located on the little axle section, and its tip with second location step face butt.
Optionally, the spring is welded to the mounting end.
In addition, the utility model also provides an encoder, which comprises the spring mounting structure, wherein the spring mounting structure comprises:
a mounting shaft having a mounting end;
the spring is provided with a connecting end and is fixedly connected with the mounting end; the method comprises the steps of,
and the radial limiting part is connected with the mounting shaft and is positioned at the radial outer side of the connecting end and used for limiting the radial deformation of the connecting end along the connecting end.
According to the technical scheme, one end of the mounting shaft, which is away from the mounting end, is used for being connected with the code disc, the spring is provided with the connecting end so as to be fixedly connected with the mounting end, one end of the spring, which is away from the connecting end, is used for being connected with the transmission structure so as to be in driving connection with the driving device, so that the transmission structure and the mounting shaft form flexible connection, the transmission structure and the mounting shaft are isolated, vibration born by the transmission structure is prevented from being transmitted to the mounting shaft, meanwhile, the radial limiting part is connected to the mounting shaft and is positioned at the radial outer side of the connecting end so as to limit the radial deformation of the connecting end along the radial direction of the connecting end, so that the spring is prevented from being deformed along the radial direction of the connecting end due to torque transmission, and the fixing position of the connecting end and the mounting end is prevented from being broken, and the problem that the fixing position of the spring of the conventional encoder is easy to break is solved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of an embodiment of a spring mounting structure according to the present utility model;
FIG. 2 is a schematic cross-sectional structural view of the spring mounting structure of FIG. 1;
FIG. 3 is a schematic view of a partial enlarged structure at A in FIG. 2;
FIG. 4 is an exploded view of the spring mounting structure of FIG. 1;
fig. 5 is a schematic perspective view of an embodiment of an encoder according to the present utility model.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Spring mounting structure | 14 | Second positioning step surface |
| 1 | Mounting shaft | 2 | Spring |
| 11 | Mounting end | 21 | Connecting terminal |
| 111 | A first shaft section | 3 | Radial limit part |
| 112 | Second shaft section | 31 | Limiting sleeve |
| 113 | First positioning step surface | 1000 | Encoder with a plurality of sensors |
| 12 | Small shaft section | 200 | Transmission structure |
| 13 | Large shaft section |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the case where a directional instruction is involved in the embodiment of the present utility model, the directional instruction is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional instruction is changed accordingly.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
At present, the encoder usually transmits torque through a spring so that the encoder can form flexible connection with a driving device, and the encoder is prevented from being damaged due to vibration. However, the springs of the existing encoders are usually directly fixed on the shaft, so that stress concentration occurs at the fixing position, and the springs deform along the radial direction when torque is transmitted, so that the fixing position of the springs is easy to break.
Based on the above, the utility model provides a spring mounting structure for an encoder, which aims to solve the problem that the fixing part of the spring of the existing encoder is easy to break. Fig. 1 to 3 are schematic structural views of an embodiment of a spring mounting structure according to the present utility model; fig. 4 is a schematic structural diagram of an encoder according to an embodiment of the present utility model.
Referring to fig. 1 to 3, the spring mounting structure 100 includes a mounting shaft 1, a spring 2, and a radial limiting portion 3, wherein the mounting shaft 1 has a mounting end 11, the spring 2 has a connecting end 21 to be fixedly connected with the mounting end 11, and the radial limiting portion 3 is connected to the mounting shaft 1 and is located radially outside the connecting end 21 to limit the connecting end 21 from deforming along a radial direction thereof.
In the technical scheme of the utility model, one end of the mounting shaft 1, which is away from the mounting end 11, is used for connecting a code disc, the spring 2 is provided with a connecting end 21 so as to be fixedly connected with the mounting end 11, one end of the spring 2, which is away from the connecting end 21, is used for connecting a transmission structure 200 so as to be in driving connection with a driving device, so that the transmission structure 200 and the mounting shaft 1 are flexibly connected, the transmission structure 200 is isolated from the mounting shaft 1, vibration borne by the transmission structure 200 is not transmitted to the mounting shaft 1, and meanwhile, the radial limiting part 3 is connected to the mounting shaft 1 and is positioned at the radial outer side of the connecting end 21 so as to limit the radial deformation of the connecting end 21 along the radial direction of the connecting end 21, so that the spring 2 is prevented from deforming along the radial direction of the connecting end 21 and the fixing position of the spring 2 of the mounting end 11 due to torque transmission, and the problem that the fixing position of the spring 2 of the conventional encoder 1000 is easy to break is solved.
It will be appreciated that referring to fig. 1 and 3, the outer side of the connecting end 21 refers to the radial outer side of the spring 2, and the inner side of the connecting end 21 refers to the radial inner side of the spring 2.
Further, the radial limiting portion 3 includes a limiting sleeve 31 sleeved on the radial outer side of the connecting end 21, so that the limiting sleeve 31 is arranged to limit the connecting end 21 to deform towards the outer side of the spring 2 along the radial direction of the connecting end, thereby helping to avoid breakage of the fixing portion of the connecting end 21 and the mounting end 11.
It should be noted that, the radial limiting portion 3 has a plurality of setting manners, in another embodiment, the radial limiting portion 3 includes a plurality of limiting plates, and a plurality of limiting plates are circumferentially spaced along the mounting shaft 1, so that, by setting a plurality of limiting plates, the connecting end 21 is limited correspondingly, and the connecting end 21 is prevented from deforming radially toward the outer side of the spring 2.
Generally speaking, the spring 2 deforms radially outwards when torque is transmitted, so it is only necessary to provide the limiting sleeve 31 on the outer side of the spring 2, but in practical use, the spring 2 may deform radially inwards of the spring 2, and for this purpose, in this embodiment, the mounting end 11 includes a first shaft section 111 and a second shaft section 112 connected to the first shaft section 111, the outer diameter of the first shaft section 111 is smaller than the outer diameter of the second shaft section 112, so as to form a first positioning step surface 113 towards the spring 2, and the connecting end 21 of the spring 2 is sleeved on the first shaft section 111 and fixedly connected to the first positioning step surface 113, so that the connecting end 21 is sleeved by providing the first shaft section 111 so as to limit the deformation of the spring 2 radially inwards of the spring 2, and simultaneously, by providing the first positioning step surface 113 so as to position the spring 2 at the mounting end 11, thereby facilitating the mounting of the spring 2. Further, there are various positions of the stop collar 31, and the stop collar 31 may be disposed on the first shaft section 111 or the second shaft section 112, which is not limited in the present utility model, specifically, in this embodiment, the stop collar 31 is sleeved on the second shaft section 112, so that the stop collar 31 can completely cover the connection end 21 of the spring 2, thereby helping to promote the stop effect of the radial stop structure. It can be appreciated that the two associated technical features described above: the connecting end 21 of the spring 2 is sleeved on the first shaft section 111 and is fixedly connected to the first positioning step surface 113, and the limit sleeve 31 is sleeved on the second shaft section 112, so that the spring can be alternatively or simultaneously arranged, and obviously, the setting effect is better.
In an embodiment of the present utility model, an annular limiting groove is defined between the inner surface of the limiting sleeve 31 and the radial direction of the mounting shaft 1, the groove width of the annular limiting groove is L1, L1 is less than or equal to 3.2mm and less than or equal to 3.4mm, theoretically, the narrower the annular limiting groove, the better the limiting effect is, but the too narrow the annular limiting groove can cause difficult assembly, so that when L1 is less than or equal to 3.2mm and less than or equal to 3.4mm, the limiting sleeve 31 is not only convenient to be mounted on the mounting shaft 1, but also the radial deformation of the connecting end 21 of the spring 2 can be limited. In another embodiment, the groove depth of the annular limiting groove is L2, and L2 is more than or equal to 8mm and less than or equal to 10mm, wherein the groove depth of the annular limiting groove refers to the length from the groove bottom of the annular limiting groove to the opening of the annular limiting groove on the axial section along the mounting shaft. In theory, the deeper the groove depth of the annular limiting groove is, the better the limiting effect is, and when the depth of the annular limiting groove exceeds a certain length, the limiting effect of the groove depth on the connecting end 21 is not great, but the too long groove depth can limit the flexible connection effect of the spring 2, so that when the L2 is less than or equal to 8mm and less than or equal to 10mm, the limiting effect of the annular limiting groove can be ensured, and the influence on the flexible connection effect of the spring 2 can be avoided. It can be appreciated that the two associated technical features described above: the groove width of the annular limiting groove is L1, L1 is less than or equal to 3.2mm and less than or equal to 3.4mm, the groove depth of the annular limiting groove is L2, L2 is less than or equal to 8mm and less than or equal to 10mm, the annular limiting groove can be alternatively arranged, the annular limiting groove can be simultaneously arranged, and the annular limiting groove has better setting effect obviously.
In an embodiment of the present utility model, the stop collar 31 is detachably connected to the mounting shaft 1, so that the stop collar 31 is detachably connected to be easily assembled and disassembled, thereby facilitating subsequent maintenance or replacement. Further, the limiting sleeve 31 is sleeved on the mounting shaft 1 through a threaded connection structure, so that the limiting sleeve 31 is mounted on the connecting shaft through the threaded connection structure, and the mounting and dismounting are simple in structure and convenient.
The connection between the stop collar 31 and the mounting shaft 1 is various, and the stop collar 31 may be detachably mounted on the mounting shaft 1 or may be fixedly mounted on the mounting shaft 1, which is not limited in the present utility model, specifically, in an embodiment, the stop collar 31 is welded to the mounting shaft 1, and thus, a welded connection is adopted to fixedly mount the stop collar 31 on the mounting shaft 1, so as to prevent the stop collar 31 from being separated from the mounting shaft 1 due to vibration or the like. In another embodiment, the stop collar 31 is riveted to the mounting shaft 1 by a rivet structure, and thus, the stop collar 31 is fixedly mounted on the mounting shaft 1 by adopting rivet connection, so as to prevent the stop collar 31 from being separated from the mounting shaft 1 due to vibration or the like.
In order to rapidly install the stop collar 31 on the installation shaft 1, in this embodiment, the installation shaft 1 includes a small shaft section 12 and a large shaft section 13 distributed along an axial direction thereof, a second positioning step surface 14 facing the spring 2 is formed between the small shaft section 12 and the large shaft section 13, the stop collar 31 is sleeved on the small shaft section 12, and an end portion of the stop collar 31 abuts against the second positioning step surface 14, so that the position of the stop collar 31 is positioned on the installation shaft 1 by setting the second positioning step surface 14, thereby facilitating rapid installation of the stop collar 31 on the installation shaft 1.
The fixing manner between the connecting end 21 of the spring 2 and the mounting end 11 of the mounting shaft 1 is various, the spring 2 may be adhesively fixed to the mounting shaft 1, or the spring 2 may be welded and fixed to the mounting shaft 1, which is not limited in this utility model, specifically, in this embodiment, the spring 2 is welded to the mounting end 11, and thus, the spring 2 and the mounting shaft 1 are connected into a whole by welding, which is beneficial to strengthening the connection between the spring 2 and the mounting shaft 1, so as to avoid the breakage of the fixing position of the spring 2 and the mounting shaft 1.
In addition, in order to achieve the above object, the present utility model further provides an encoder 1000, referring to fig. 4, the encoder 1000 includes the spring mounting structure 100 described above. It should be noted that, the spring mounting structure in the encoder 1000 may refer to the embodiment of the spring mounting structure 100 described above, and will not be described herein again; because the above-mentioned spring mounting structure 100 is used in the encoder 1000 provided by the present utility model, the embodiments of the encoder 1000 provided by the present utility model include all the technical solutions of all the embodiments of the above-mentioned spring mounting structure 100, and the achieved technical effects are identical, and are not described in detail herein.
Further, the encoder 1000 further includes a transmission structure 200, where the transmission structure 200 includes a transmission shaft and a transmission gear rotatably mounted on the transmission shaft, and one end of the spring 2, which is away from the connection end 21, is sleeved on the transmission shaft, so that the transmission structure 200 is connected with a driving device, and the transmission structure 200 is isolated from the mounting shaft 1 by the spring 2, so that the force received by the transmission structure 200 is not directly transmitted to the mounting shaft 1.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the specification and drawings of the present utility model or direct/indirect application in other related technical fields are included in the scope of the present utility model.
Claims (10)
1. A spring mounting structure, characterized in that the spring mounting structure comprises:
a mounting shaft having a mounting end;
the spring is provided with a connecting end and is fixedly connected with the mounting end; the method comprises the steps of,
and the radial limiting part is connected with the mounting shaft and is positioned at the radial outer side of the connecting end and used for limiting the radial deformation of the connecting end along the connecting end.
2. The spring mounting structure of claim 1, wherein the radial stop includes a stop collar that is sleeved radially outward of the connecting end.
3. The spring mounting structure of claim 2, wherein the mounting end includes a first shaft section and a second shaft section connecting the first shaft section, the first shaft section having an outer diameter smaller than an outer diameter of the second shaft section to form a first locating step surface toward the spring, wherein:
the connecting end of the spring is sleeved on the first shaft section and is fixedly connected to the first positioning step surface; and/or the number of the groups of groups,
and the limiting sleeve is sleeved on the second shaft section.
4. The spring mounting structure of claim 3 wherein an annular limiting groove is defined between an inner surface of the limiting sleeve and a radial direction of the mounting shaft, wherein:
the groove width of the annular limiting groove is L1, and L1 is more than or equal to 3.2mm and less than or equal to 3.4mm; and/or the number of the groups of groups,
the groove depth of the annular limiting groove is L2, and L2 is more than or equal to 8mm and less than or equal to 10mm.
5. The spring mounting structure of claim 2 wherein said stop collar is removably attached to said mounting shaft.
6. The spring mounting structure of claim 5, wherein the stop collar is sleeved on the mounting shaft by a threaded connection.
7. The spring mounting structure of claim 2, wherein said stop collar is welded to said mounting shaft; or,
the limiting sleeve is riveted on the mounting shaft through a rivet structure.
8. The spring mounting structure according to claim 2, wherein the mounting shaft includes a small shaft section and a large shaft section distributed along an axial direction thereof, a second positioning step surface facing the spring is formed between the small shaft section and the large shaft section, the spacer sleeve is fitted over the small shaft section, and an end portion thereof abuts against the second positioning step surface.
9. The spring mounting structure of claim 1 wherein said spring is welded to said mounting end.
10. An encoder comprising a spring mounting arrangement as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322492833.1U CN220794290U (en) | 2023-09-13 | 2023-09-13 | Spring mounting structure and encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322492833.1U CN220794290U (en) | 2023-09-13 | 2023-09-13 | Spring mounting structure and encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220794290U true CN220794290U (en) | 2024-04-16 |
Family
ID=90663744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322492833.1U Active CN220794290U (en) | 2023-09-13 | 2023-09-13 | Spring mounting structure and encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220794290U (en) |
-
2023
- 2023-09-13 CN CN202322492833.1U patent/CN220794290U/en active Active
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