CN114197254A - Track shock absorber - Google Patents
Track shock absorber Download PDFInfo
- Publication number
- CN114197254A CN114197254A CN202111292672.0A CN202111292672A CN114197254A CN 114197254 A CN114197254 A CN 114197254A CN 202111292672 A CN202111292672 A CN 202111292672A CN 114197254 A CN114197254 A CN 114197254A
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- Prior art keywords
- cylinder
- damper
- elastic member
- slider
- cavity
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides an orbit damper, which comprises a body, wherein the body comprises a first cylinder and a second cylinder, wherein the second cylinder can be inserted into the first cylinder, and the first cylinder can move relative to the second cylinder under the action of external force, so that the size of the body is changed. An elastic part is arranged in the second cylinder body, the elastic part is provided with a free end extending out of the first cylinder body, and the free end can abut against the first cylinder body so as to block the relative movement between the first cylinder body and the second cylinder body. The track vibration absorber can improve the vibration absorbing effect on the track and prolong the service life.
Description
Technical Field
The invention relates to a track damper.
Background
With the rapid development of urban rail transit, the environmental vibration problem caused by urban rail transit is becoming more and more prominent. At present, the most common practice in rail vibration control is to insert an elastic supporting layer between the upper rail structure and the lower foundation to form a vibration damping rail, such as a steel spring floating plate, so as to damp the vibration generated by train operation through the inertial motion of the upper rail structure on the elastic supporting layer.
The steel spring floating plate vibration reduction track is characterized in that a concrete road bed plate with certain mass and rigidity is arranged on a steel spring vibration isolator to form a mass spring vibration isolation system. However, such a vibration isolation system has insufficient vibration damping effect and is difficult to apply to an environment with large vibration. And the spring structure is easy to be damaged on the structure due to corrosion, difficult to bear intermittent high-load pressure and corrosion, so that the service life of the spring vibration isolation system is short.
Disclosure of Invention
In view of the technical problems mentioned above, the present invention aims to provide an orbital vibration damper. The track vibration absorber can improve the vibration absorbing effect on the track and prolong the service life.
According to the present invention, there is provided a track damper comprising: the body, the body includes first barrel and can insert the second barrel of first barrel, first barrel can move relative to the second barrel under the exogenic action to change the size of body.
An elastic part is arranged in the second cylinder body, the elastic part is provided with a free end extending out of the first cylinder body, and the free end can abut against the first cylinder body so as to block the relative movement between the first cylinder body and the second cylinder body.
In a preferred embodiment, the elastic member is arranged to abut on an inner wall of the second cylinder.
In a preferred embodiment, a damping layer is further disposed on the side wall of the second cylinder, and a friction plate is further disposed between the damping layer and the elastic member.
In a preferred embodiment, an inner ear plate is arranged on the inner wall of the first cylinder body near one end of the second cylinder body, an outer ear plate capable of forming engagement with the inner ear plate is arranged on the outer wall of the second cylinder body near one end of the first cylinder body, and the inner ear plate is detachably connected to the first cylinder body.
In a preferred embodiment, the fixing device further comprises a fixing cylinder sleeved on the periphery of the body, and a fixing hole for mounting the first fixing piece is formed in the bottom of the fixing cylinder.
In a preferred embodiment, a plurality of baffle plates are uniformly arranged on the inner wall of the fixed cylinder along the axial direction, a gap is formed between any two adjacent baffle plates, and a sliding block capable of extending into the gap is arranged on the first cylinder body.
In a preferred embodiment, a cover plate is further connected to one end, away from the second cylinder, of the first cylinder, a cavity is formed between the cover plate and the first cylinder, and the sliding block is arranged in the cavity.
In a preferred embodiment, the cover plate is connected with the slider through a second elastic member, and the elastic member has an unstressed natural state for pushing the slider out of the cavity and a compressed state for enabling the slider to be located in the cavity. The slider is provided with a second detachable fixing piece for fixing the slider in the cavity.
In a preferred embodiment, the elastic member and the fixing cylinder are made of a polyurethane material, and the damping layer is made of a polyurethane-rubber hybrid material.
In a preferred embodiment, at least one connecting piece is further arranged on the outer wall of the fixed cylinder.
Drawings
The invention will now be described with reference to the accompanying drawings.
FIG. 1 shows a schematic view of a track damper according to one embodiment of the present invention.
Fig. 2 is a schematic view of a stationary tube of the orbital damper shown in fig. 1.
In the present application, the drawings are all schematic and are used only for illustrating the principles of the invention and are not drawn to scale.
Detailed Description
The operation of the rail damper 100 according to the present invention is briefly described as follows. In this context, the "upper end" refers to an end close to the "first cylinder", and the "lower end" refers to an end far from the "first cylinder".
FIG. 1 shows a track damper 100 according to one embodiment of the present invention. As shown in fig. 1, the track damper 100 includes a body 10 with an internal cavity 12 mounted on a vehicle running track (not shown). Specifically, the body 10 includes a first cylinder 20 and a second cylinder 30, and the first cylinder 20 and the second cylinder 30 are configured as a cylinder or a square cylinder with an opening 25. Wherein, the diameter of the second cylinder 30 is set to the diameter of the first cylinder 20, so that one end of the second cylinder 30 near the opening 25 can be inserted into the first cylinder 10, thereby composing the body 10.
And when the second cylinder 30 is inserted into the first cylinder 20, the second cylinder 30 can move in the first cylinder 20 along the axial direction of the first cylinder 20 under the action of an external force, so that the distance between the upper end 21 of the first cylinder 20 and the lower end 32 of the second cylinder 30 is changed, and the size of the body 10 is changed.
As shown in fig. 1, a first elastic member 22 is further disposed in the second cylinder 20. The first elastic member 22 may be, for example, a spring, and has a first end 221 fixed to the inner wall of the lower end of the second cylinder 20 and a second end 222 extending in the axial direction so as to form a free end protruding out of the opening 25. Thus, when the second cylinder 30 moves in the axial direction of the first cylinder 20 in the first cylinder 20, the second end 222 of the first elastic member 22 can abut against the inner wall of the upper end of the first cylinder 20. Subsequently, when the second cylinder 30 continues to move toward the first cylinder 20, the first elastic member 22 is compressed. And the first elastic member 22 can prevent the second cylinder 30 from moving to the direction approaching to the first cylinder 20 as the first elastic member 22 is compressed.
Further, a connecting device (not shown) is disposed at the second end 222 of the first elastic member 22, so that the second end 222 of the first elastic member 22 can be fixed on the first cylinder 20. When the second cylinder 30 moves away from the first cylinder 20, the first elastic member 22 is stretched, so that the first elastic member 22 can prevent the second cylinder 30 from moving further away from the first cylinder 20.
It will be understood that when the track on which the vehicle travels vibrates, the body 10 is driven to vibrate, resulting in movement between the first cylinder 20 and the second cylinder 30. In this process, the first elastic member 22 can hinder the relative movement between the first cylinder 20 and the second cylinder 30, and thus the vibration of the body 10, so that the body 10 achieves the effect of vibration reduction.
In a preferred embodiment, the first elastic member 22 is disposed to abut on a sidewall of the second cylinder 30. So that sliding friction occurs between the first elastic member 22 and the side wall of the second cylinder 30 during the compression or extension of the first elastic member 22. This sliding friction will further hinder the first elastic member 22 from compressing or stretching, thereby increasing the damping effect of the body 10.
Further, a damping layer 35 is disposed on the sidewall of the second cylinder 30. The damping layer 35 is composed of a wear-resistant material with a high coefficient of friction. The damping layer 35 can increase the friction coefficient between the first elastic member 22 and the sidewall of the second cylinder 30, so as to increase the sliding friction force applied to the first elastic member 22, thereby further inhibiting the stretching or compressing of the first elastic member 22, and increasing the vibration damping effect of the body 10.
In the present invention, the damping layer 35 is preferably made of a polyurethane-rubber hybrid material. On one hand, the material has a larger friction coefficient, and can effectively improve the sliding friction force borne by the first elastic element 22; meanwhile, the material has good wear resistance and corrosion resistance, and can prevent the damping layer 35 from rusting and losing efficacy, so that the service life and the reliability of the track shock absorber 100 are improved.
Likewise, the first elastic member 22 is also made of a polyurethane material. Compared with a common metal elastic part, the first elastic part 22 made of the material has stronger stability, and can effectively avoid the failure of the first elastic part 22 due to rusting or corrosion, thereby prolonging the service life and improving the reliability of the first elastic part 22.
In a preferred embodiment, a friction plate 36 is further disposed between the damping layer 35 and the first elastic member 22. The wear plate is also made of a wear-resistant material with a high friction coefficient, which can further increase the resistance of the first elastic member 22 when being stretched or compressed, thereby further improving the vibration damping effect of the body 10.
As shown in fig. 1, an inner ear plate 24 is further provided on the inner wall of the first cylinder 20, and an outer ear plate 34 engageable with the inner ear plate 24 is provided on the outer wall of the second cylinder. The inner ear plate 24 and the outer ear plate 34 are respectively disposed at the end of the lower end of the first cylinder 20 and the end of the upper end of the second cylinder 30, so that when the second cylinder 30 is inserted into the first cylinder 20, the outer ear plate 34 is located at the upper end of the inner ear plate 24 close to the first cylinder 20.
Therefore, when the second cylinder 30 moves in the direction axially away from the first cylinder 20, or when the first cylinder 30 moves in the direction axially away from the second cylinder 20, the inner ear plate 24 and the outer ear plate 34 are driven to move relatively, so that the outer ear plate 34 finally abuts against the inner ear plate 24 and forms a clamping connection. Therefore, the outer ear plate 34 and the inner ear half 24 play a role in limiting the moving stroke of the first cylinder body 20 and the second cylinder body 30, and further limiting the range of size increase when the body 10 vibrates. On the other hand, the engagement between the outer ear plate 34 and the inner ear plate 24 also provides a fixing effect to prevent the first tube 20 and the second tube 30 from being separated by an external force.
The inner ear plate 24 is attached to the first barrel 20 by bolts 26, as necessary. Thus, when the first cylinder 20 and the second cylinder 30 are assembled, the inner ear plate 24 can be removed first, and the inner ear plate 24 is prevented from obstructing the outer ear plate 34 from entering the first cylinder 20, which affects the normal assembly of the body 10.
In a preferred embodiment, a fixed cylinder is further provided outside the body 10.
Fig. 2 is a schematic view of the stationary tube 50 of the orbital damper 100 shown in fig. 1. As shown in fig. 2, the fixed cylinder 50 is configured in a cylindrical or square cylindrical shape to be fitted to the body 10. At least one fixing hole 51 is formed on an inner wall of a lower end of the fixing cylinder 50. The fixing cylinder 50 is mounted on the vehicle running rail by a first fixing member (not shown) mounted in the fixing hole 51, thereby achieving a connection between the entire rail damper 100 and the vehicle running rail. The fixed cylinder 50 can prevent the body 10 from being damaged by an impact. Preferably, the fixed cylinder 50 is also made of a polyurethane material, so that the corrosion resistance of the fixed cylinder 50 is improved, and the fixed cylinder 50 is prevented from being oxidized and corroded in long-term use.
As shown in fig. 2, a plurality of baffles 52 configured in an annular shape are uniformly arranged on the inner wall of the fixed cylinder 50 in the axial direction, and a gap 53 is formed between any two adjacent baffles. The fixed cylinder 50 and the body 10 are mutually matched and connected through the gap 53 to transmit torque.
Specifically, as shown in fig. 1, a cover plate 60 is further attached to an outer wall of an upper end of the first cylinder 20. A cavity 70 is formed between the cover plate 60 and the first cylinder 20. The cover plate 60 is configured in a generally "T" shape that includes a horizontal first plate 62 and a vertical second plate 64. The second plate 64 is attached to the first barrel 20 and divides the chamber 70 into a left chamber 72 and a right chamber 74. A slide block 75 is respectively arranged in the left chamber 72 and the right chamber 74, and the slide block 75 is respectively fixed in the left chamber 72 and the right chamber 74 through a second fixing piece 76 which is detachable.
As shown in fig. 1, a second elastic member 77 is further disposed between the slider 75 and the second plate 64, and the second elastic member 77 may be a spring, for example. The slider 75 is connected to the second plate 64 by a second elastic member 77. The second resilient member 77 is configured to be in a compressed state when the slider 75 is located in the cavity 70, such that when the second securing member 76 is removed, the second resilient member 77 can push the slider 75 out of the left and right chambers 72 and 74, respectively, until the second resilient member 77 returns to an unstressed natural state.
When the fixed cylinder needs to be installed, the sliding block 75 is firstly fixed in the cavity 70 through the second fixing piece 76, and then the body 10 is put into the fixed cylinder, so that the cavity 70 corresponds to the gap 53. The second fixing member 76 is then removed so that the second elastic member 77 pushes the slider 75 into the gap 53. Thereby connecting the body 10 to the fixed cylinder 50 through the slider 75.
Compared with the existing way of rotationally mounting through a joint, the connection way can simplify the mounting steps of the body 10 on one hand. On the other hand, the operator can freely control the installation height of the main body 10 according to the actual needs of the site by inserting the slide block 75 into different gaps 53.
In addition, in a preferred embodiment, at least one connecting member 58 is disposed on the outer wall of the fixed cylinder 50. The connector 58 is used to connect with other auxiliary devices such as an electronic control device or a detection device, so as to facilitate monitoring and maintenance operations of the rail damper 100 by workers.
Furthermore, a reinforcing structure 59 is further provided on the outer wall of the fixed cylinder 50, and the reinforcing structure 59 may be, for example, a reinforcing rib. The reinforcing structure 59 can improve the strength and connection stability of the fixed cylinder 50, thereby improving the reliability of the inventive track damper 100.
The operation of the rail damper 100 according to the present invention is briefly described as follows.
The track damper 100 of the present invention is adapted to be attached to a vehicle running track. When the track vibrates, the body 10 is driven to vibrate synchronously. When the body 10 vibrates, relative movement between the first cylinder 20 and the second cylinder 30 is caused, and the first elastic member 22 is stretched or compressed. At this time, the elastic force of the first elastic member 22 may hinder the vibration of the body 10, so that the body 10 has an effect of reducing the rail vibration.
In this process, the first elastic member 22 is in contact with the damping layer 35 in the first cylinder 20, so that the frictional resistance to the first elastic member 22 in extension or compression is increased, thereby further increasing the vibration damping effect of the body 10.
Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and do not limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing examples, or that equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An orbital damper (100) comprising:
a body (10) comprising a first cylinder (20) and a second cylinder (30) insertable in the first cylinder, the first cylinder being movable relative to the second cylinder under the action of an external force so as to vary the size of the body,
an elastic member (22) is arranged in the second cylinder, and the elastic member is provided with a free end (222) extending out of the first cylinder, and the free end can abut against the first cylinder so as to block relative movement between the first cylinder and the second cylinder.
2. The track damper (100) according to claim 1, characterized in that the elastic member is arranged to abut on a side wall of the second cylinder.
3. The rail damper (100) according to claim 2, wherein a damping layer (35) is further provided on the side wall of the second cylinder, and a friction plate (36) is further provided between the damping layer and the elastic member.
4. The rail damper (100) of any of claims 1-3, wherein an inner ear plate (24) is disposed on an inner wall of the first cylinder near one end of the second cylinder, and an outer ear plate (34) is disposed on an outer wall of the second cylinder near one end of the first cylinder and is configured to engage the inner ear plate, the inner ear plate being removably attached to the first cylinder.
5. The rail damper (100) according to any one of claims 1 to 3, further comprising a fixed cylinder (50) fitted around the outer periphery of the body, a bottom of the fixed cylinder being provided with a fixing hole (51).
6. The orbital vibration absorber (100) according to claim 6, wherein a plurality of baffles are uniformly arranged on the inner wall of the fixed cylinder in the axial direction, a gap (53) is formed between any two adjacent baffles, and the first cylinder is provided with a slider (75) which can extend into the gap.
7. The rail damper (100) of claim 7, wherein a cover plate (60) is further connected to an end of the first cylinder remote from the first cylinder, a cavity (70) is formed between the cover plate and the second cylinder, and the slider is disposed within the cavity.
8. The rail damper (100) of claim 8, wherein the cover plate and the slider are connected by a second resilient member (77) having an unstressed natural state urging the slider out of the cavity and a compressed state with the slider in the cavity,
a second detachable fixing piece (76) for fixing the sliding block in the cavity is arranged on the sliding block.
9. The orbital damper (100) of claim 8, wherein the spring and the stationary cylinder are made of a polyurethane material,
the damping layer is made of polyurethane-rubber mixed material.
10. The orbital damper (100) of claim 9, wherein at least one connector (58) is further disposed on the outer wall of the stationary cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292672.0A CN114197254A (en) | 2021-11-03 | 2021-11-03 | Track shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111292672.0A CN114197254A (en) | 2021-11-03 | 2021-11-03 | Track shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114197254A true CN114197254A (en) | 2022-03-18 |
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ID=80646773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111292672.0A Pending CN114197254A (en) | 2021-11-03 | 2021-11-03 | Track shock absorber |
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| Country | Link |
|---|---|
| CN (1) | CN114197254A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07259004A (en) * | 1994-03-28 | 1995-10-09 | Shimizu Corp | Vibrationproof track |
| CN2651511Y (en) * | 2003-02-18 | 2004-10-27 | 曹洪才 | Anti-side-force dampener |
| CN101545518A (en) * | 2008-03-29 | 2009-09-30 | 尹学军 | Vibration isolation device and application thereof |
| CN101787667A (en) * | 2009-01-22 | 2010-07-28 | 尹学军 | Easy-maintenance floating ballast bed |
| CN202790279U (en) * | 2012-09-13 | 2013-03-13 | 厦门嘉达环保建造工程有限公司 | Vibration isolator of damping spring |
| CN203034318U (en) * | 2012-12-21 | 2013-07-03 | 常州市铭锦弹簧有限公司 | Track vibration attenuation and noise reduction device |
| CN208734776U (en) * | 2018-08-10 | 2019-04-12 | 吴江市金诺通风减震设备厂 | It is a kind of to be easily installed fixed spring cushion |
-
2021
- 2021-11-03 CN CN202111292672.0A patent/CN114197254A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07259004A (en) * | 1994-03-28 | 1995-10-09 | Shimizu Corp | Vibrationproof track |
| CN2651511Y (en) * | 2003-02-18 | 2004-10-27 | 曹洪才 | Anti-side-force dampener |
| CN101545518A (en) * | 2008-03-29 | 2009-09-30 | 尹学军 | Vibration isolation device and application thereof |
| CN101787667A (en) * | 2009-01-22 | 2010-07-28 | 尹学军 | Easy-maintenance floating ballast bed |
| CN202790279U (en) * | 2012-09-13 | 2013-03-13 | 厦门嘉达环保建造工程有限公司 | Vibration isolator of damping spring |
| CN203034318U (en) * | 2012-12-21 | 2013-07-03 | 常州市铭锦弹簧有限公司 | Track vibration attenuation and noise reduction device |
| CN208734776U (en) * | 2018-08-10 | 2019-04-12 | 吴江市金诺通风减震设备厂 | It is a kind of to be easily installed fixed spring cushion |
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