CN221299806U - Unidirectional fixed guide wheel - Google Patents
Unidirectional fixed guide wheel Download PDFInfo
- Publication number
- CN221299806U CN221299806U CN202323159230.6U CN202323159230U CN221299806U CN 221299806 U CN221299806 U CN 221299806U CN 202323159230 U CN202323159230 U CN 202323159230U CN 221299806 U CN221299806 U CN 221299806U
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- Prior art keywords
- mandrel
- guide wheel
- roller
- unidirectional
- bearing
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- 238000009434 installation Methods 0.000 description 32
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses a unidirectional fixed guide wheel, which comprises: the device comprises a mandrel, wherein one end of the mandrel is provided with a mounting part, the other end of the mandrel is provided with a locking part, a mounting groove is formed in the position between the mounting part and the locking part, threads are formed on the surface of the mounting part, the mandrel is mounted on a frame through the mounting part, the radial size of the locking part is larger than the diameter of the mandrel, and a tool can screw the locking part, so that the mandrel is driven to rotate; the clamp spring is clamped in the mounting groove; the bearing is arranged on the mandrel and is positioned between the locking part and the mounting part, one side of the bearing is limited by the locking part, and the other side of the bearing is limited by the clamp spring; and the roller is arranged on the bearing. The unidirectional fixed guide wheel provided by the utility model can be installed by screwing the mandrel on the outer side of the unidirectional fixed guide wheel by using the tool, and is convenient to operate.
Description
Technical Field
The utility model relates to the technical field of guide wheels, in particular to a unidirectional fixed guide wheel.
Background
In the prior art, a unidirectional fixed guide wheel is generally provided with a wheel body, a mandrel, a bearing and a clamp spring, wherein an installation part at one end of the mandrel is fixed on a frame, the bearing is fixedly installed on the mandrel, the wheel body is rotatably installed on the mandrel through the bearing, one side, far away from the installation part, of the bearing is limited through the clamp spring, and the other side is limited through a limiting projection arranged on the mandrel.
When the unidirectional fixed guide wheel is installed, the installation part of the mandrel is aligned with and inserted into the threaded hole of the frame, then the spanner is used for screwing the limiting lug of the mandrel to realize fixation, and because the limiting lug is close to the frame, when the installation space is limited, the frame does not have enough avoiding space, and the spanner cannot stably clamp and screw the limiting lug, so that the installation cannot be completed.
Disclosure of utility model
The utility model aims to solve the problem that the unidirectional fixed guide wheel is inconvenient to install in the prior art. Therefore, the unidirectional fixed guide wheel provided by the utility model can be assembled by screwing the mandrel on the outer side of the unidirectional fixed guide wheel by using a tool, and is convenient to operate.
According to an embodiment of the first aspect of the present utility model, a unidirectional stationary guide wheel comprises:
The device comprises a mandrel, wherein one end of the mandrel is provided with a mounting part, the other end of the mandrel is provided with a locking part, a mounting groove is formed in the position between the mounting part and the locking part, threads are formed on the surface of the mounting part, the mandrel is mounted on a frame through the mounting part, the radial size of the locking part is larger than the diameter of the mandrel, and a tool can screw the locking part, so that the mandrel is driven to rotate;
The clamp spring is clamped in the mounting groove;
The bearing is arranged on the mandrel and is positioned between the locking part and the mounting part, one side of the bearing is limited by the locking part, and the other side of the bearing is limited by the clamp spring;
And the roller is arranged on the bearing.
The unidirectional fixed guide wheel provided by the embodiment of the utility model has at least the following beneficial effects: the locking part of the mandrel of the unidirectional fixed guide wheel is arranged at the outer side far away from the installation part, the tool can screw the locking part of the mandrel at the outer side of the unidirectional fixed guide wheel to complete the installation, even if the installation space is limited, the matching of the tool and the locking part of the mandrel is not influenced, and the installation can be completed in the limited installation space.
According to some embodiments of the utility model, the locking portion is provided with a groove on the outer side, the groove being an internal hexagonal groove.
According to some embodiments of the utility model, the locking portion is a polygonal cylinder.
According to some embodiments of the utility model, the locking portion is a hexagonal cylinder.
According to some embodiments of the utility model, the two bearings are arranged along the length direction of the mandrel, the roller is provided with a positioning part, the positioning part is a protrusion of the inner wall of the roller towards the central shaft, and the positioning part is clamped between the two bearings.
According to some embodiments of the utility model, an extension portion is disposed on a side of the roller, which is close to the locking portion, the extension portion is a protrusion of a wheel body of the roller along a length direction of the mandrel, and the locking portion is located in the roller.
According to some embodiments of the utility model, a rubber layer is arranged on the outer side of the wheel body of the roller.
According to some embodiments of the utility model, a clearance groove is provided between the mounting portion and the mounting groove.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic illustration of the installation of a unidirectional stationary guide wheel in accordance with one embodiment of the present utility model;
FIG. 2 is an isometric view of the unidirectional stationary guide wheel shown in FIG. 1;
FIG. 3 is another isometric view of the unidirectional stationary guide wheel shown in FIG. 1;
FIG. 4 is a front view of the unidirectional stationary guide wheel shown in FIG. 1;
FIG. 5 is a cross-sectional view A-A of the unidirectional stationary guide wheel shown in FIG. 4;
Fig. 6 is a schematic view of the installation of a unidirectional fixed guide wheel in the prior art.
Reference numerals:
Mandrel 100, mounting portion 110, locking portion 120, groove 121, mounting groove 130, tool retracting groove 140, snap spring 200, bearing 300, roller 400, positioning portion 410, extension portion 420, rubber layer 500.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
In the prior art, as shown in fig. 6, a unidirectional fixed guide wheel is generally provided with a wheel body, a mandrel, a bearing and a clamp spring, wherein a mounting part at one end of the mandrel is fixed on a frame, the bearing is fixedly arranged on the mandrel, the wheel body is rotatably arranged on the mandrel through the bearing, one side of the bearing away from the mounting part is limited by the clamp spring, and the other side of the bearing is limited by a limiting projection arranged on the mandrel.
When the unidirectional fixed guide wheel is installed, the installation part of the mandrel is aligned with and inserted into the threaded hole of the frame, then the spanner is used for screwing the limiting lug of the mandrel to realize fixation, and because the limiting lug is close to the frame, when the installation space is limited, the frame does not have enough avoiding space, and the spanner cannot stably clamp and screw the limiting lug, so that the installation cannot be completed.
According to the unidirectional fixed guide wheel, the locking part of the mandrel is arranged at the outer side far away from the installation part, and the tool can screw the locking part of the mandrel at the outer side of the unidirectional fixed guide wheel to complete the installation.
Referring to fig. 1 to 5, it can be understood that the unidirectional fixed guide wheel provided in the embodiment of the present utility model includes a spindle 100, a clip spring 200, a bearing 300, and a roller 400. Specifically, an installation part 110 is provided at one end of the mandrel 100, a locking part 120 is provided at the other end, an installation groove 130 is provided between the installation part 110 of the mandrel 100 and the locking part 120, threads are provided on the surface of the installation part 110, the mandrel 100 is in threaded connection with a rack through the installation part 110, and when in installation, the locking part 120 is screwed by a tool so as to drive the mandrel 100 to rotate, wherein the radial dimension of the locking part 120 is larger than the diameter of the mandrel 100, so that one side of a bearing 300 installed on the mandrel 100 is limited. The snap spring 200 is mounted on the mounting groove 130 and extends partially outside the mounting groove 130. The bearing 300 is disposed on the spindle 100 and between the locking portion 120 and the mounting portion 110, one side of the bearing 300 is limited by the locking portion 120, and the other side is limited by the clip spring 200. The roller 400 is disposed on the bearing 300.
It should be noted that, compared with the installation structure of the unidirectional fixed guide wheel in the prior art, the locking part 120 of the utility model is arranged at the rear end of the mandrel 100, and because the locking part 120 has a larger gap between the inner wall of the wheel body, the installation space is abundant, the installation tool can not interfere with the frame, the installation is convenient, and the installation can be completed in a limited installation space. Meanwhile, the clamping spring 200 is arranged at the inner side of the installation, when the clamping spring 200 is loosened, the frame is used for limiting the bearing 300 and the wheel body, and the bearing 300 and the wheel body cannot directly fall off from the mandrel 100.
It should be noted that, in some embodiments, the outer side of the locking portion 120 is provided with a groove 121, and the present utility model preferably includes a hexagonal groove 121, and an internal hexagonal wrench may be used to insert the groove 121 and screw the locking portion 120. In other embodiments, the locking portion 120 may be designed as a polygonal cylinder, and the locking portion 120 is sleeved in the polygonal cylinder by a socket wrench and screwed, so that the hexagonal cylinder is preferred, and the hexagonal socket wrench is matched with the hexagonal cylinder for use, so that the installation is more convenient.
It should be noted that two bearings 300 are provided, the two bearings 300 are arranged along the length direction of the mandrel 100, a gap is provided between the two bearings 300, the roller 400 is disposed on the two bearings 300, one bearing 300 is located at one side of the roller 400, the other bearing 300 is located at the other side of the roller 400, the roller 400 is provided with a positioning portion 410, the positioning portion 410 is a protrusion of the inner wall of the roller 400 towards the central shaft, and the positioning portion 410 is clamped between the two bearings 300. The two bearings 300 cooperate with the clamp spring 200, the locking portion 120 and the positioning portion 410 of the roller 400 to limit the roller 400, so as to prevent the roller 400 from being separated from the bearings 300 along the length direction of the mandrel 100.
It should be noted that, an extension portion 420 is disposed on a side of the roller 400 near the locking portion 120, the extension portion 420 is a protrusion of a wheel body of the roller 400 along a length direction of the mandrel 100, and the locking portion 120 is covered in the wheel body of the roller 400. This design avoids interference with other equipment components caused by the protrusion of the locking portion 120 from the body of the roller 400.
The rubber layer 500 is disposed on the outer side of the wheel body of the roller 400, so that the friction force on the surface of the roller 400 can be effectively increased. In addition, a tool retracting groove 140 is arranged between the mounting part 110 and the mounting groove 130 of the mandrel 100, so that the clamping spring 200 is convenient to install and disassemble, and parts of the unidirectional fixed guide wheel are replaced or maintained.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (8)
1. A unidirectional stationary guide wheel, comprising:
the device comprises a mandrel (100), wherein one end of the mandrel is provided with a mounting part (110), the other end of the mandrel is provided with a locking part (120), the mandrel (100) is positioned between the mounting part (110) and the locking part (120) and is also provided with a mounting groove (130), threads are arranged on the surface of the mounting part (110), the mandrel (100) is mounted on a frame through the mounting part (110), the radial size of the locking part (120) is larger than the diameter of the mandrel (100), and a tool can screw the locking part (120) so as to drive the mandrel (100) to rotate;
the clamp spring (200) is clamped in the mounting groove (130);
The bearing (300) is arranged on the mandrel (100) and is positioned between the locking part (120) and the mounting part (110), one side of the bearing (300) is limited by the locking part (120), and the other side is limited by the clamp spring (200);
And a roller 400 provided on the bearing 300.
2. A unidirectional stationary guide wheel as claimed in claim 1, characterized in that the locking portion (120) is provided with a groove (121) on the outside, the groove (121) being an internal hexagonal groove.
3. A unidirectional stationary guide wheel as claimed in claim 1, characterized in that the locking portion (120) is a polygonal cylinder.
4. A unidirectional stationary guide wheel as claimed in claim 3, characterized in that the locking portion (120) is a hexagonal cylinder.
5. The unidirectional fixed guide wheel according to claim 1, wherein two bearings (300) are arranged along the length direction of the spindle (100), the roller (400) is provided with positioning portions (410), the positioning portions (410) are protrusions, facing the central axis, of the inner wall of the roller (400), and the positioning portions (410) are clamped between the two bearings (300).
6. A unidirectional stationary guide wheel as claimed in claim 1, characterized in that an extension (420) is provided on a side of the roller (400) adjacent to the locking portion (120), the extension (420) is a protrusion of the wheel body of the roller (400) along the length direction of the spindle (100), and the locking portion (120) is located in the roller (400).
7. A unidirectional stationary guide wheel as claimed in claim 1, characterized in that the outer side of the wheel body of the roller (400) is provided with a rubber layer (500).
8. A unidirectional stationary guide wheel as claimed in claim 1, characterized in that the spindle (100) is provided with a clearance groove (140) between the mounting portion (110) and the mounting groove (130).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323159230.6U CN221299806U (en) | 2023-11-22 | 2023-11-22 | Unidirectional fixed guide wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323159230.6U CN221299806U (en) | 2023-11-22 | 2023-11-22 | Unidirectional fixed guide wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221299806U true CN221299806U (en) | 2024-07-09 |
Family
ID=91751866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323159230.6U Active CN221299806U (en) | 2023-11-22 | 2023-11-22 | Unidirectional fixed guide wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221299806U (en) |
-
2023
- 2023-11-22 CN CN202323159230.6U patent/CN221299806U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |