CN215487437U - Torsional vibration damper - Google Patents
Torsional vibration damper Download PDFInfo
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- CN215487437U CN215487437U CN202121119285.2U CN202121119285U CN215487437U CN 215487437 U CN215487437 U CN 215487437U CN 202121119285 U CN202121119285 U CN 202121119285U CN 215487437 U CN215487437 U CN 215487437U
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Abstract
The utility model relates to a torsional damper, which aims to solve the problem that the existing mode of axially limiting a driving disc by adopting an adjusting pad and a damping pad cannot be applied due to the limitation of the axial size and the structure of the torsional damper. The torsional damper comprises a driving ring, a driving disc, two annular cover plates and a plurality of damping spring sets, wherein the thickness of the driving ring is greater than that of the driving disc, the driving disc is arranged on the inner side of the driving ring, a plurality of spring mounting notches are uniformly distributed on the outer edge of the driving disc in the circumferential direction, the two annular cover plates are respectively arranged on the upper side and the lower side of the driving ring and are fixedly connected with the driving ring, and the driving disc is clamped between the two annular cover plates; the annular cover plate is of a disc spring structure, and the part of the annular cover plate close to the inner edge is abutted with the driving disc; the annular cover plate is circumferentially provided with a plurality of windows in one-to-one correspondence with the spring mounting notches, and a plurality of damping spring groups are respectively mounted in the spring mounting notches.
Description
Technical Field
The utility model relates to the technical field of automobile transmission systems, in particular to a torsional damper.
Background
The torsional damper is widely applied to an automobile transmission system and is used for avoiding resonance of the transmission system, relaxing impact, reducing noise, prolonging the service life of transmission system parts, improving the driving comfort of an automobile and enabling the automobile to start stably.
As shown in fig. 1, in the conventional torsional damper, the thickness of the driving ring 01 is greater than that of the driving disc 02, the annular cover plates 03 are of a flat plate structure, and after the upper and lower annular cover plates 03 are fixedly connected with the driving ring 01, a large gap exists between the annular cover plates 03 and the driving disc 02, so that the driving disc 02 can axially shake in the working process, which results in unstable torque transmission. At present, the axial limit of the driving disc 02 is usually realized by matching an adjusting pad and a damping pad, wherein the adjusting pad is a flat washer or a spline pad and is used for adjusting the axial size; the damping pad is a wave spring pad or a small disc spring, and can be axially pre-pressed after being assembled, so that the vibration generated in the power transmission process can be effectively absorbed in the working process.
However, with the rapid development of the automotive industry, the structure and performance of the torsional damper are also constantly being updated. Due to the axial size and structural limitation of the torsional damper, the conventional limit mode of matching the adjusting pad and the damping pad cannot be continuously applied, so that a new mode for axially limiting the driving disc of the torsional damper needs to be designed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the existing mode of adopting an adjusting pad and a damping pad to axially limit a driving disc cannot be suitable due to the limitation of the axial size and the structure of a torsional damper, and provides the torsional damper, which adopts the technical scheme that:
a torsional vibration damper, its particularity lies in: the vibration reduction device comprises a driving ring, a driving disc, two annular cover plates and a plurality of vibration reduction spring sets;
the thickness of the driving ring is larger than that of the driving disc; the driving disc is coaxially arranged on the inner side of the driving ring, and a plurality of spring mounting notches are uniformly distributed at the outer edge of the driving disc in the circumferential direction; the number of the spring mounting notches is consistent with that of the damping spring groups;
the two annular cover plates are respectively coaxially arranged on the upper side and the lower side of the driving ring and the driving disc and are fixedly connected with the driving ring, so that the driving disc is clamped between the two annular cover plates; the annular cover plate is of a disc spring structure, and the part of the annular cover plate close to the inner edge is abutted with the driving disc; a plurality of windows are circumferentially arranged on the annular cover plate, and correspond to a plurality of spring mounting notches on the driving disc one by one;
the plurality of damping spring groups are respectively installed in the plurality of spring installation notches.
Furthermore, a plurality of bolt mounting holes are correspondingly formed in the circumferential direction of the driving ring and the two annular cover plates; the two annular cover plates are fixedly connected with the driving ring through bolts and nuts.
The utility model also provides a torsional vibration damper, which is characterized in that: the vibration reduction device comprises a driving ring, a driving disc, two annular cover plates and a plurality of vibration reduction spring sets;
the thickness of the driving ring is larger than that of the driving disc; the driving disc is coaxially arranged on the inner side of the driving ring, and a plurality of spring mounting notches are uniformly distributed at the outer edge of the driving disc in the circumferential direction; the number of the spring mounting notches is consistent with that of the damping spring groups;
the two annular cover plates are respectively coaxially arranged on the upper side and the lower side of the driving ring and the driving disc and are fixedly connected with the driving ring, so that the driving disc is clamped between the two annular cover plates; the annular cover plate is of a flat plate structure, annular bosses are arranged on the upper side and the lower side of the driving disc respectively along the circumferential direction, and the annular bosses are abutted with the part, close to the inner edge, of the annular cover plate; a plurality of windows are circumferentially arranged on the annular cover plate, and correspond to a plurality of spring mounting notches on the driving disc one by one;
the plurality of damping spring groups are respectively installed in the plurality of spring installation notches.
Furthermore, a plurality of bolt mounting holes are correspondingly formed in the circumferential direction of the driving ring and the two annular cover plates; the two annular cover plates are fixedly connected with the driving ring through bolts and nuts.
Further, a spring washer is arranged between the nut and the adjacent annular cover plate.
Compared with the prior art, the utility model has the beneficial effects that:
(1) according to the torsional vibration damper provided by the utility model, the annular cover plate of the existing flat plate structure is changed into the disc-shaped spring structure, so that the torsional vibration damper has the functions of an adjusting pad and a damping pad. After the upper annular cover plate and the lower annular cover plate are fixedly connected with the driving ring, the parts of the upper annular cover plate and the lower annular cover plate, which are close to the inner edges, are abutted to the driving disc, so that the driving disc is clamped to realize the effect of axial limiting. Therefore, the annular cover plate can rotate in the working process, the axial movement of the driving disc is limited, and meanwhile, the damping provided by the annular cover plate for clamping the driving disc can absorb the vibration generated in the power transmission process. The torsional damper is simple in structure and small in axial size.
(2) According to the other torsional damper provided by the utility model, the annular bosses are respectively additionally arranged on the upper side and the lower side of the driving disk, so that the axial clearance between the annular cover plate and the driving disk is eliminated, and the axial limiting effect is realized. The torsional damper is simple in structure and small in axial size.
Drawings
FIG. 1 is a partial cross-sectional view of a prior art torsional vibration damper;
FIG. 2 is a front view of a first embodiment of the present invention;
FIG. 3 is a first schematic cross-sectional view illustrating a first embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view illustrating a second embodiment of the present invention;
FIG. 5 is a partial cross-sectional view of a first embodiment of the present invention (damping spring package not shown);
fig. 6 is a partial sectional view of a second embodiment of the present invention (damping spring group not shown).
The reference numerals are explained below:
in FIG. 1, 01-driving ring, 02-driving disk, 03-annular cover plate;
in fig. 2 to 6, 1-driving ring, 11-bolt mounting hole, 2-driving disc, 21-spring mounting notch, 22-annular boss, 3-annular cover plate, 31-window, 4-damping spring group, 5-bolt, 6-nut, and 7-spring washer.
Detailed Description
To further clarify the objects, advantages and features of the present invention, a torsional vibration damper according to the present invention will be described in detail with reference to the accompanying drawings and specific examples.
Example one
The torsional damper provided by the present embodiment is shown in fig. 2 to 4, and includes a driving ring 1, a driving disk 2, two annular cover plates 3, and 12 damping spring sets 4.
The thickness of the driving ring 1 is larger than that of the driving disc 2, the driving disc 2 is coaxially sleeved on the inner side of the driving ring 1, and the two annular cover plates 3 are respectively and coaxially arranged on the upper side and the lower side of the driving ring 1 and the driving disc 2. 12 bolt mounting holes 11 are uniformly and circumferentially arranged on the driving ring 1 and the two annular cover plates 3 correspondingly, and the two annular cover plates 3 are fixedly connected with the driving ring 1 through bolts 5 and nuts 6, so that the driving disc 2 is clamped between the two annular cover plates 3.
As shown in fig. 5, the annular cover plate 3 is a disc spring structure, and the portion thereof near the inner edge is gradually bent toward the side of the drive plate 2 to be clamped and abuts against the drive plate 2. Under the effect of the tightening torque of the bolts 5 and the nuts 6, the annular cover plate 3 generates elastic deformation by taking the bolts 5 as fulcrums, and only the part, close to the inner edge, of the annular cover plate 3 clamps the driving plate 2, so that axial limiting is realized. The annular cover plate 3 generates pretightening force in the process of screwing the bolts 5 and the nuts 6, and plays a role in preventing looseness of an equivalent spring washer when clamping the driving disc 2, so that the spring washer for preventing looseness is not required to be arranged between the nut 6 and the adjacent annular cover plate 3.
12 spring installation gaps 21 are evenly distributed on the outer edge of the driving disc 2 in the circumferential direction, 12 windows 31 are circumferentially arranged on the annular cover plate 3, and the 12 windows 31 are in one-to-one correspondence with the 12 spring installation gaps 21 on the driving disc 2. 12 damping spring groups 4 are respectively installed in the 12 spring installation gaps 21, two ends of each damping spring group 4 are respectively abutted against two side walls of the spring installation gaps 21, and the upper side and the lower side of each damping spring group respectively penetrate through the windows 31 of the upper annular cover plate and the lower annular cover plate 3.
When the torsional damper works, the driving ring 1 drives the upper annular cover plate 3 and the lower annular cover plate 3 to compress the damping spring group 4 after receiving input torque, and the torque is transmitted to the driving disc 2 through the damping spring group 4. Two annular cover plates 3 of a disc spring structure clamp the driving disc 2 to prevent the driving disc 2 from axially moving.
Example two
Referring to fig. 2, 3 and 4 of the first embodiment, the torsional damper provided in this embodiment includes a driving ring 1, a driving disk 2, two annular cover plates 3 and 12 damping spring sets 4.
The thickness of the driving ring 1 is larger than that of the driving disc 2, the driving disc 2 is coaxially sleeved on the inner side of the driving ring 1, and the two annular cover plates 3 are respectively and coaxially arranged on the upper side and the lower side of the driving ring 1 and the driving disc 2. 12 bolt mounting holes 11 are uniformly and circumferentially arranged on the driving ring 1 and the two annular cover plates 3 correspondingly, and the two annular cover plates 3 are fixedly connected with the driving ring 1 through bolts 5 and nuts 6, so that the driving disc 2 is clamped between the two annular cover plates 3.
As shown in fig. 6, the annular cover plate 3 is a flat plate structure, annular bosses 22 are respectively arranged on the upper side and the lower side of the drive plate 2 along the circumferential direction, and the annular bosses 22 abut against the inner edge of the annular cover plate 3, so that the axial gap between the annular cover plate 3 and the drive plate 2 is eliminated. Compared with the prior art, the structure of the driving disc 2 in this way is more complex, the processing difficulty is also relatively high, and a spring washer 7 for preventing looseness needs to be added between the nut 6 and the adjacent annular cover plate 3.
12 spring installation gaps 21 are evenly distributed on the outer edge of the driving disc 2 in the circumferential direction, 12 windows 31 are circumferentially arranged on the annular cover plate 3, and the 12 windows 31 are in one-to-one correspondence with the 12 spring installation gaps 21 on the driving disc 2. 12 damping spring groups 4 are respectively installed in the 12 spring installation gaps 21, two ends of each damping spring group 4 are respectively abutted against two side walls of the spring installation gaps 21, and the upper side and the lower side of each damping spring group respectively penetrate through the windows 31 of the upper annular cover plate and the lower annular cover plate 3.
When the torsional damper works, the driving disc drives the upper annular cover plate 3 and the lower annular cover plate 3 to compress the damping spring group 4 after receiving input torque, and the torque is transmitted to the driving disc 2 through the damping spring group 4. The annular bosses 22 on the upper and lower sides of the drive plate 2 prevent the drive plate 2 from moving axially.
Claims (5)
1. A torsional vibration damper characterized in that:
the vibration reduction device comprises a driving ring, a driving disc, two annular cover plates and a plurality of vibration reduction spring sets;
the thickness of the driving ring is larger than that of the driving disc; the driving disc is coaxially arranged on the inner side of the driving ring, and a plurality of spring mounting notches are uniformly distributed at the outer edge of the driving disc in the circumferential direction; the number of the spring mounting notches is consistent with that of the damping spring groups;
the two annular cover plates are respectively coaxially arranged on the upper side and the lower side of the driving ring and the driving disc and are fixedly connected with the driving ring, so that the driving disc is clamped between the two annular cover plates; the annular cover plate is of a disc spring structure, and the part of the annular cover plate close to the inner edge is abutted with the driving disc; a plurality of windows are circumferentially arranged on the annular cover plate, and correspond to a plurality of spring mounting notches on the driving disc one by one;
the plurality of damping spring groups are respectively installed in the plurality of spring installation notches.
2. The torsional vibration damper of claim 1, wherein:
a plurality of bolt mounting holes are correspondingly formed in the circumferential direction of the driving ring and the two annular cover plates;
the two annular cover plates are fixedly connected with the driving ring through bolts and nuts.
3. A torsional vibration damper characterized in that:
the vibration reduction device comprises a driving ring, a driving disc, two annular cover plates and a plurality of vibration reduction spring sets;
the thickness of the driving ring is larger than that of the driving disc; the driving disc is coaxially arranged on the inner side of the driving ring, and a plurality of spring mounting notches are uniformly distributed at the outer edge of the driving disc in the circumferential direction; the number of the spring mounting notches is consistent with that of the damping spring groups;
the two annular cover plates are respectively coaxially arranged on the upper side and the lower side of the driving ring and the driving disc and are fixedly connected with the driving ring, so that the driving disc is clamped between the two annular cover plates; the annular cover plate is of a flat plate structure, annular bosses are arranged on the upper side and the lower side of the driving disc respectively along the circumferential direction, and the annular bosses are abutted with the part, close to the inner edge, of the annular cover plate; a plurality of windows are circumferentially arranged on the annular cover plate, and correspond to a plurality of spring mounting notches on the driving disc one by one;
the plurality of damping spring groups are respectively installed in the plurality of spring installation notches.
4. The torsional vibration damper of claim 3, wherein:
a plurality of bolt mounting holes are correspondingly formed in the circumferential direction of the driving ring and the two annular cover plates;
the two annular cover plates are fixedly connected with the driving ring through bolts and nuts.
5. The torsional vibration damper of claim 4, wherein:
and a spring washer is arranged between the nut and the adjacent annular cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121119285.2U CN215487437U (en) | 2021-05-24 | 2021-05-24 | Torsional vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121119285.2U CN215487437U (en) | 2021-05-24 | 2021-05-24 | Torsional vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215487437U true CN215487437U (en) | 2022-01-11 |
Family
ID=79779932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121119285.2U Active CN215487437U (en) | 2021-05-24 | 2021-05-24 | Torsional vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215487437U (en) |
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2021
- 2021-05-24 CN CN202121119285.2U patent/CN215487437U/en active Active
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