CN210371864U - Sealed automatic take-up pulley - Google Patents
Sealed automatic take-up pulley Download PDFInfo
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- CN210371864U CN210371864U CN201921175139.4U CN201921175139U CN210371864U CN 210371864 U CN210371864 U CN 210371864U CN 201921175139 U CN201921175139 U CN 201921175139U CN 210371864 U CN210371864 U CN 210371864U
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- torque spring
- belt wheel
- mandrel
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Abstract
The utility model discloses a sealed automatic take-up pulley. The damping device comprises a wheel rocker arm, a damping unit, a sealing ring, a torque spring, a base, a bushing, a mandrel, a belt wheel and a dust cover; the wheel rocker arm is divided into a belt wheel area and a functional area, a rotating shaft is arranged in the belt wheel area, and the belt wheel area is connected with a belt wheel through a bearing and a bolt; the base is provided with an installation groove, a torque spring is arranged in the installation groove, a damping unit is arranged above the torque spring, the functional area is connected with the base in an interference fit manner through a mandrel, one end of the torque spring is fixedly connected with the base, and the other end of the torque spring is in contact connection with a limiting block of the wheel rocker arm through the damping unit; the sealing ring is arranged at a gap between the functional area and the periphery of the base, and the sealing ring is respectively in elastic interference fit with the functional area and the base; the bottom of the base is inserted into a mandrel, and a bushing is sleeved on the mandrel; and a dustproof cover is arranged at the bottom of the base. The utility model discloses sealing washer and functional area, base interference fit have prolonged the life of take-up pulley.
Description
The technical field is as follows:
the utility model belongs to the technical field of the take-up pulley, in particular to sealed automatic take-up pulley.
Background art:
in the current take-up pulley, there is the space between base and the wheel rocking arm, and in the take-up pulley working process, external foreign matter can cause the damage to damping mechanism and spring in getting into the take-up pulley from the space, influences the life of take-up pulley.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
The utility model has the following contents:
an object of the utility model is to provide a sealed automatic take-up pulley to overcome the defect among the above-mentioned prior art.
In order to achieve the purpose, the utility model provides a sealed automatic tensioning wheel, which comprises a wheel rocker arm, a damping unit, a sealing ring, a torque spring, a base, a bushing, a mandrel, a belt wheel and a dust cover; the wheel rocker arm is divided into a belt wheel area and a functional area, a rotating shaft is arranged in the belt wheel area, and the belt wheel area is connected with a belt wheel through a bearing and a bolt; the base is provided with an installation groove, a torque spring is arranged in the installation groove, a damping unit is arranged above the torque spring, the functional area is in interference fit connection with the base through a mandrel, one end of the torque spring is fixedly connected with the base, the other end of the torque spring is in contact connection with a limiting block of the wheel rocker arm through the damping unit, and when the wheel rocker arm rotates, the damping unit rubs with the inner wall of the base and generates spring torque and friction damping; the sealing ring is arranged at a gap between the functional area and the periphery of the base, and the sealing ring is respectively in elastic interference fit with the functional area and the base; the bottom of the base is inserted into a mandrel, and a bushing is sleeved on the mandrel; and a dustproof cover is arranged at the bottom of the base.
Compared with the prior art, the utility model discloses following beneficial effect has:
through sealing washer and functional area, pedestal connection, because the elastic characteristic of sealing washer makes sealing washer and functional area, base interference fit, reaches the effect of airtight mounting groove, prevents in the take-up pulley working process that external foreign matter from getting into the take-up pulley, causes the damage to damping mechanism and spring, has prolonged the life of take-up pulley.
Description of the drawings:
FIG. 1 is an exploded view of the automatic sealing tensioner of the present invention;
the reference signs are: the device comprises a rocker arm 1, a damping unit 2, a sealing ring 3, a torque spring 4, a base 5, a bushing 6, a mandrel 7, a belt wheel 8, a dust cover 9, a bearing 10, a bolt 11, a mounting groove 12, a belt wheel zone 13, a functional zone 14 and a rotating shaft 15.
The specific implementation mode is as follows:
the following detailed description of the embodiments of the present invention is provided, but it should be understood that the scope of the present invention is not limited by the embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Example 1
As shown in fig. 1, the sealed automatic tensioning wheel comprises a wheel rocker arm 1, a damping unit 2, a sealing ring 3, a torque spring 4, a base 5, a bushing 6, a mandrel 7, a belt wheel 8 and a dust cover 9; the wheel rocker arm 1 is divided into a belt wheel area 13 and a functional area 14, a rotating shaft 15 is arranged in the belt wheel area 13, and the belt wheel area 13 is connected with a belt wheel 8 through a bearing 10 and a bolt 11; the base 5 is provided with an installation groove 12, a torque spring 4 is arranged in the installation groove 12, a damping unit 2 is arranged above the torque spring 4, a functional area 14 is connected with the base 5 through a mandrel 7 in an interference fit manner, one end of the torque spring 4 is fixedly connected with the base 5, the other end of the torque spring is in contact connection with a limiting block of the wheel rocker arm 1 through the damping unit 2, and when the wheel rocker arm 1 rotates, the damping unit 2 rubs with the inner wall of the base 5 and generates spring torque and friction damping; the sealing ring 3 is arranged at a gap between the functional area 14 and the periphery of the base 5, and the sealing ring 3 is in elastic interference fit with the functional area 14 and the base 5 respectively; a mandrel 7 is inserted into the bottom of the base 5, and a bushing 6 is sleeved on the mandrel 7; the bottom of the base 5 is provided with a dust cover 9.
Sealing washer and functional area, base interference fit reach the effect of airtight mounting groove, prevent in the take-up pulley working process, during external foreign matter gets into the take-up pulley, cause the damage to damping mechanism and spring, prolonged the life of take-up pulley.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (1)
1. An automatic take-up pulley of sealed which characterized in that: the damping device comprises a wheel rocker arm, a damping unit, a sealing ring, a torque spring, a base, a bushing, a mandrel, a belt wheel and a dust cover; the wheel rocker arm is divided into a belt wheel area and a functional area, a rotating shaft is arranged in the belt wheel area, and the belt wheel area is connected with a belt wheel through a bearing and a bolt; the base is provided with an installation groove, a torque spring is arranged in the installation groove, a damping unit is arranged above the torque spring, the functional area is connected with the base in an interference fit manner through a mandrel, one end of the torque spring is fixedly connected with the base, and the other end of the torque spring is in contact connection with a limiting block of the wheel rocker arm through the damping unit; the sealing ring is arranged at a gap between the functional area and the periphery of the base, and the sealing ring is respectively in elastic interference fit with the functional area and the base; the bottom of the base is inserted into a mandrel, and a bushing is sleeved on the mandrel; and a dustproof cover is arranged at the bottom of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921175139.4U CN210371864U (en) | 2019-07-25 | 2019-07-25 | Sealed automatic take-up pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921175139.4U CN210371864U (en) | 2019-07-25 | 2019-07-25 | Sealed automatic take-up pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210371864U true CN210371864U (en) | 2020-04-21 |
Family
ID=70246183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921175139.4U Active CN210371864U (en) | 2019-07-25 | 2019-07-25 | Sealed automatic take-up pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210371864U (en) |
-
2019
- 2019-07-25 CN CN201921175139.4U patent/CN210371864U/en active Active
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