CN217081260U - Silicone oil torsional vibration damper - Google Patents
Silicone oil torsional vibration damper Download PDFInfo
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- CN217081260U CN217081260U CN202220347781.1U CN202220347781U CN217081260U CN 217081260 U CN217081260 U CN 217081260U CN 202220347781 U CN202220347781 U CN 202220347781U CN 217081260 U CN217081260 U CN 217081260U
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Abstract
The utility model provides a silicon oil torsional vibration damper, including the casing to and inertia piece, elastic limiting block and the silicon oil of setting in the casing, the inertia piece is ring shape, and its sliding sleeve is inside the casing, fills silicon oil in the clearance of casing and inertia piece, and elastic limiting block has elasticity, and during its fixed embedding inertia piece to outstanding tip is hugged closely on shells inner wall through the pretightning force, and elastic limiting block distributes on the circumferencial direction of inertia piece. Compared with the prior art, the utility model discloses because elastic limiting block's elasticity can reduce and eliminate the sliding friction of two terminal surfaces of elastic limiting block and shell, improve silicon oil shock absorber's life greatly.
Description
Technical Field
The utility model belongs to the technical field of the silicon oil torsional vibration damper, in particular to silicon oil torsional vibration damper.
Background
A crankshaft torsional vibration damper is mounted on a crankshaft of an internal combustion engine for generating a damping torque or counter torque to reduce the amplitude of torsional vibrations of the crankshaft. The traditional silicone oil damper generally comprises an inertia ring, a side cover, a shell, a bush and silicone oil, wherein the shell is connected with a crankshaft, the side cover and the shell form a closed cavity, the inertia ring is sleeved in the closed cavity in a sliding manner, the inertia ring is in a double-sided parallel circular ring shape, a certain gap is formed between the inertia ring and the closed cavity, the gap is filled with high-viscosity liquid-silicone oil, when an internal combustion engine works, the shell and the crankshaft rotate together, the inertia ring rotates at a constant speed due to inertia, relative motion is formed between the inertia ring and the shell, and vibration energy of the crankshaft is absorbed by internal friction damping of the silicone oil, so that shafting torsional vibration is reduced.
However, the existing silicone oil damper usually adopts a non-elastic material stopper (ring). When axial force exists, the non-elastic material limiting block (ring) and the shell generate sliding friction, and the silicone oil torsional vibration damper rapidly loses efficacy.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to solve the defects of the prior art, the utility model provides a silicon oil torsional vibration damper, it has long service life's advantage.
The technical scheme is as follows: the utility model provides a silicon oil torsional vibration damper, including the casing to and set up inertial mass, elastic limiting block and the silicon oil in the casing, the inertial mass is ring shape, and its sliding sleeve is inside the casing, fills silicon oil in the clearance of casing and inertial mass, and elastic limiting block has elasticity, and during its fixed embedding inertial mass, and outstanding tip is hugged closely on shells inner wall through the pretightning force, and elastic limiting block distributes on the circumferencial direction of inertial mass.
The elastic limiting block is made of rubber elastic materials, can limit the axial movement of the inertia block and allows the inertia block to rotate.
As a preferable or improved scheme:
the vertical section of the elastic limiting block is in a lying T shape, one end with large thickness is fixedly embedded into the inertia block, the other end with small thickness protrudes out of the inertia block, and the protruding end part is tightly attached to the inner wall of the shell through pretightening force.
As a scheme, the whole elastic limiting block is made of an elastic material.
As another scheme, the elastic limiting block further comprises a core rod positioned in the elastic limiting block, the core rod is made of a non-elastic material, and the rest of the core rod is made of an elastic material; the plug level sets up, and inside one end inserted the elastic limiting block, the other end salient in elastic limiting block. This design can increase axial stiffness so that the inertia mass remains in the middle of the housing.
As another scheme, the elastic limiting block further comprises a core rod and an elastic cap, wherein the core rod is located inside the elastic limiting block, the elastic cap is located at the top end of the core rod, the core rod is made of non-elastic materials, and the rest of the core rod is made of elastic materials. The plug level sets up, and inside one end inserted the elasticity stopper, the other end salient in elasticity stopper, the elastic cap is located the outstanding top of plug.
The elastic limiting blocks are a plurality of elastic limiting blocks arranged on two sides of the inertia block, one end of the limiting block on one side is fixedly embedded into the inertia block, the other end of the limiting block on one side is tightly attached to the inner wall of the shell through the pretightening force, one end of the limiting block on the other side is fixedly embedded into the inertia block, and the other end of the limiting block on the other side is tightly attached to the inner wall of the shell through the pretightening force.
The silicone oil torsional vibration damper also comprises a cover plate which is positioned at the outer sides of the inertia block and the elastic limiting block and is connected with the shell into a whole through welding or bolts. A plurality of elastic limiting blocks are arranged on two sides of the inertia block, one end of one side limiting block is fixedly embedded into the inertia block, the other end of the one side limiting block is tightly attached to the inner wall of the shell through pretightening force, one end of the other side limiting block is fixedly embedded into the inertia block, and the other end of the other side limiting block is tightly attached to the inner wall of the cover plate through pretightening force.
The silicone oil torsional vibration damper also includes a bearing band located inside the inertia block.
Has the advantages that: compared with the prior art, the utility model discloses because elastic limiting block's elasticity can reduce and eliminate the sliding friction of two terminal surfaces of elastic limiting block and shell, improve silicon oil shock absorber's life greatly.
Drawings
Fig. 1 is a schematic structural diagram of a silicone oil torsional vibration damper according to embodiment 1 of the present invention.
Fig. 2 is the utility model discloses embodiment 1 elastic limiting block's in silicone oil torsional vibration damper structural schematic diagram.
Fig. 3 is a schematic structural view of a silicone oil torsional vibration damper according to embodiment 2 of the present invention.
Fig. 4 is the utility model discloses embodiment 2 elastic limiting block's in silicon oil torsional vibration damper structural schematic diagram.
Fig. 5 is a schematic structural view of a silicone oil torsional vibration damper according to embodiment 3 of the present invention.
Fig. 6 is the utility model discloses embodiment 3 elastic limiting block's in silicon oil torsional vibration damper structural schematic diagram.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1
The utility model provides a silicon oil torsional vibration damper, as shown in figure 1, including casing 1, and set up inertial mass 2 in casing 1, elasticity stopper 3, silicon oil 4, apron 5 and bearing area 6, inertial mass 2 is the ring shape, its sliding sleeve is inside casing 1, fill silicon oil 4 in casing 1 (including apron 5) and inertial mass 2's the clearance, elasticity stopper 3 has elasticity, its vertical cross-section is the T shape of lying down, the one end that thickness is big is fixed to be embedded in inertial mass 2, the one end that thickness is little is followed and is popped out in inertial mass 2, and the tip that protrudes hugs closely on casing 1 inner wall through the pretightning force. The elastic limiting blocks 3 are distributed in the circumferential direction of the inertia block 2. The cover plate 5 is positioned on the outer sides of the inertia block 2 and the elastic limiting block 3 and is connected with the shell into a whole through welding or bolts. Elastic limiting blocks 3 are a plurality of limiting blocks symmetrically arranged on two sides of the fast-moving-body 2, one end of the limiting block on one side is fixedly embedded into the inertial block 2, the other end of the limiting block on one side is tightly attached to the inner wall of the shell 1 through pretightening force, one end of the limiting block on the other side is fixedly embedded into the inertial block 2, and the other end of the limiting block on the other side is tightly attached to the inner wall of the cover plate 5 through pretightening force. The bearing strip 6 is located inside the inertia mass 2.
The elastic limiting block is made of rubber elastic materials, can limit the axial movement of the inertia block and allows the inertia block to rotate.
As shown in fig. 1 and 2, the elastic stopper 3 is integrally a stopper made of an elastic material.
The working process and principle are as follows:
when the internal combustion engine works, the shell 1 and the crankshaft rotate together, the inertia block 2 rotates at a constant speed due to the viscosity of the silicon oil 4, relative motion is formed between the inertia block 2 and the shell 1 (comprising the cover plate 5), and the vibration energy of the crankshaft is absorbed by the internal friction damping of the silicon oil 4, so that the torsional vibration of a shafting is reduced. When inertia piece 2 has the axial force, because elasticity stopper 3 has elasticity, it can reduce and eliminate the sliding friction of two terminal surfaces of elasticity stopper 3 and shell, improves the life of silicon oil shock absorber greatly.
Example 2
The utility model provides a silicon oil torsional vibration damper, as shown in fig. 3, including casing 1, and set up inertial mass 2 in casing 1, elasticity stopper 3, silicon oil 4, apron 5 and bearing area 6, inertial mass 2 is the ring shape, its sliding sleeve is inside casing 1, fill silicon oil 4 in casing 1 (including apron 5) and inertial mass 2's the clearance, elasticity stopper 3 has elasticity, its vertical cross-section is the T shape of lying down, the one end that thickness is big is fixed to be embedded in inertial mass 2, the one end that thickness is little is followed and is popped out in inertial mass 2, and the tip that protrudes is hugged closely on casing 1 inner wall through the pretightning force. The elastic limiting blocks 3 are distributed in the circumferential direction of the inertia block 2. The cover plate 5 is positioned on the outer sides of the inertia block 2 and the elastic limiting block 3 and is connected with the shell into a whole through welding or bolts. Elastic limiting blocks 3 are a plurality of limiting blocks symmetrically arranged on two sides of the fast-moving-body 2, one end of the limiting block on one side is fixedly embedded into the inertial block 2, the other end of the limiting block on one side is tightly attached to the inner wall of the shell 1 through pretightening force, one end of the limiting block on the other side is fixedly embedded into the inertial block 2, and the other end of the limiting block on the other side is tightly attached to the inner wall of the cover plate 5 through pretightening force. The bearing strip 6 is located inside the inertia mass 2.
The elastic limiting block is made of rubber elastic materials, can limit the axial movement of the inertia block and allows the inertia block to rotate.
As shown in fig. 3 and 4, the elastic limiting block 3 further includes a core rod 31 located inside thereof, the core rod 31 is horizontally disposed, one end is inserted inside the elastic limiting block 3, and the other end protrudes out of the elastic limiting block 3. The protruding top end of the core rod 31 is tightly attached to the inner wall of the shell 1 or the inner wall of the cover plate 5 through pretightening force, the core rod 31 is made of non-elastic materials, and the rest of the core rod is made of elastic materials.
The working process and principle are as follows:
when the internal combustion engine works, the shell 1 (comprising the cover plate 5) and the crankshaft rotate together, the inertia block 2 rotates at a constant speed due to the viscosity of the silicon oil 4, relative motion is formed between the inertia block 2 and the shell 1 (comprising the cover plate 5), and the vibration energy of the crankshaft is absorbed by the internal friction damping of the silicon oil 4, so that the torsional vibration of the shafting is reduced. When inertia piece 2 has the axial force, because elasticity stopper 3 has elasticity, it can reduce and eliminate the sliding friction of two terminal surfaces of elasticity stopper 3 and shell, improves the life of silicon oil shock absorber greatly.
Example 3
The utility model provides a silicon oil torsional vibration damper, as shown in fig. 5, including casing 1, and set up inertial mass 2 in casing 1, elasticity stopper 3, silicon oil 4, apron 5 and bearing area 6, inertial mass 2 is the ring shape, its sliding sleeve is inside casing 1, fill silicon oil 4 in casing 1 (including apron 5) and inertial mass 2's the clearance, elasticity stopper 3 has elasticity, its vertical cross-section is the T shape of lying down, the one end that thickness is big is fixed to be embedded in inertial mass 2, the one end that thickness is little is followed and is popped out in inertial mass 2, and the tip that protrudes hugs closely on casing 1 inner wall through the pretightning force. The elastic limiting blocks 3 are distributed in the circumferential direction of the inertia block 2. The cover plate 5 is positioned on the outer sides of the inertia block 2 and the elastic limiting block 3 and is connected with the shell into a whole through welding or bolts. Elastic limiting blocks 3 are a plurality of limiting blocks symmetrically arranged on two sides of the fast-moving-body 2, one end of the limiting block on one side is fixedly embedded into the inertial block 2, the other end of the limiting block on one side is tightly attached to the inner wall of the shell 1 through pretightening force, one end of the limiting block on the other side is fixedly embedded into the inertial block 2, and the other end of the limiting block on the other side is tightly attached to the inner wall of the cover plate 5 through pretightening force. The bearing strip 6 is located inside the inertia mass 2.
The elastic limiting block is made of rubber elastic materials, can limit the axial movement of the inertia block and allows the inertia block to rotate.
As shown in fig. 5 and 6, the elastic limiting block 3 further includes a core rod 31 located inside the elastic limiting block and an elastic cap 32 located at the top end of the core rod 31, the core rod 31 is horizontally disposed, one end of the core rod is inserted into the elastic limiting block 3, the other end of the core rod protrudes out of the elastic limiting block 3, the elastic cap 32 is located at the protruding top end of the core rod 31, the elastic cap 32 is tightly attached to the inner wall of the housing 1 or the inner wall of the cover plate 5 through a pre-tightening force, the core rod 31 is made of a non-elastic material, and the rest of the core rod is made of an elastic material.
The working process and principle are as follows:
when the internal combustion engine works, the shell 1 (comprising the cover plate 5) and the crankshaft rotate together, the inertia block 2 rotates at a constant speed due to the viscosity of the silicon oil 4, relative motion is formed between the inertia block 2 and the shell 1 (comprising the cover plate 5), and the vibration energy of the crankshaft is absorbed by the internal friction damping of the silicon oil 4, so that the torsional vibration of the shafting is reduced. When inertia piece 2 has the axial force, because elasticity stopper 3 has elasticity, it can reduce and eliminate the sliding friction of two terminal surfaces of elasticity stopper 3 and shell, improves the life of silicon oil shock absorber greatly.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a silicon oil torsional vibration damper, a serial communication port, including casing (1), and set up inertial mass (2) in casing (1), elasticity stopper (3) and silicon oil (4), inertial mass (2) are the ring shape, its sliding sleeve is inside casing (1), fill silicon oil (4) in the clearance of casing (1) and inertial mass (2), elasticity stopper (3) have elasticity, it is fixed to imbed in inertial mass (2), and outstanding tip is hugged closely on casing (1) inner wall through the pretightning force, elasticity stopper (3) distribute on the circumferencial direction of inertial mass (2).
2. The silicone oil torsional vibration damper according to claim 1, characterized in that the vertical section of the elastic limiting block (3) is a lying T shape, one end with large thickness is fixedly embedded in the inertia block (2), the other end with small thickness is protruded from the inertia block (2), and the protruded end is clung to the inner wall of the shell (1) through pretightening force.
3. The silicone oil torsional vibration damper according to claim 1, characterized in that the elastic stopper (3) is integrally made of an elastic material.
4. The silicone oil torsional vibration damper of claim 1, wherein the elastic stopper (3) further comprises a core rod (31) located inside the elastic stopper, the core rod (31) is made of a non-elastic material, and the rest of the core rod is made of an elastic material.
5. The silicone oil torsional vibration damper of claim 1, wherein the elastic stopper (3) further comprises a core rod (31) inside the elastic stopper and an elastic cap (32) at the top end of the core rod (31), the core rod (31) is made of a non-elastic material, and the rest is made of an elastic material.
6. The silicone oil torsional vibration damper according to claim 1, wherein the elastic limiting blocks (3) are a plurality of elastic limiting blocks arranged on two sides of the inertia block (2), one end of one limiting block is fixedly embedded in the inertia block (2), the other end of the limiting block is tightly attached to the inner wall of the shell (1) through pretightening force, one end of the other limiting block is fixedly embedded in the inertia block (2), and the other end of the limiting block is tightly attached to the inner wall of the other side of the shell (1) through pretightening force.
7. The silicone oil torsional vibration damper according to claim 1, further comprising a cover plate (5) located outside the inertia block (2) and the elastic limit blocks (3), wherein a plurality of elastic limit blocks are arranged on two sides of the inertia block (2), one end of one limit block is fixedly embedded in the inertia block (2), the other end of the one limit block is tightly attached to the inner wall of the housing (1) through a pre-tightening force, one end of the other limit block is fixedly embedded in the inertia block (2), and the other end of the other limit block is tightly attached to the inner wall of the cover plate (5) through the pre-tightening force.
8. The silicone oil torsional vibration damper of claim 1, further comprising a bearing strip (6) located inside the inertia mass (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022202138853 | 2022-01-26 | ||
| CN202220213885 | 2022-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217081260U true CN217081260U (en) | 2022-07-29 |
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ID=82544743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220347781.1U Active CN217081260U (en) | 2022-01-26 | 2022-02-21 | Silicone oil torsional vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217081260U (en) |
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- 2022-02-21 CN CN202220347781.1U patent/CN217081260U/en active Active
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