CN109488714B - A kind of built-in shock-absorbing means of rail vehicle helical spring - Google Patents
A kind of built-in shock-absorbing means of rail vehicle helical spring Download PDFInfo
- Publication number
- CN109488714B CN109488714B CN201811193995.2A CN201811193995A CN109488714B CN 109488714 B CN109488714 B CN 109488714B CN 201811193995 A CN201811193995 A CN 201811193995A CN 109488714 B CN109488714 B CN 109488714B
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- China
- Prior art keywords
- helical spring
- rail vehicle
- erection support
- shock
- built
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000013016 damping Methods 0.000 claims abstract description 23
- 238000012856 packing Methods 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000004636 vulcanized rubber Substances 0.000 claims description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000012141 concentrate Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010058 rubber compounding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010219 correlation analysis Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The present invention relates to a kind of built-in shock-absorbing means of rail vehicle helical spring, including the erection support being sequentially placed into inside helical spring from top to bottom, damping body and weight mass block, the erection support is fixedly connected with the axle box rubber packing for carrying the helical spring bottom end, two end faces up and down of the damping body are machined with groove along longitudinal direction, it is machined with the protrusion being slidably matched with the groove respectively in the upper surface of erection support and the lower end surface of weight mass block, the backstop screw rod of the length travel of the restricted weight mass block of right angle setting and damping body is gone back on longitudinal both ends of the erection support.Compared with prior art, the present invention is by adding powered shock absorption device inside rail vehicle helical spring, absorbable helical spring concentrates high-frequency vibratory energy, prevent the spring breakage caused by energy concentration under the effect of high frequency load by helical spring, installation is replaced and dismantles very convenient, cost economic.
Description
Technical field
The invention belongs to the vibration control technology field of rail vehicle, it is related to a kind of the built-in of rail vehicle helical spring
Shock-absorbing means.
Background technique
Helical spring is the important load bearing component of rail vehicle, and in recent years, spiral occurs once in a while in online rail vehicle of runing
Spring breakage phenomenon, helical spring fracture may directly result in spring failure, very harmful.Helical spring fracture is common in work
Enclose between bracing ring, correlation analysis the result shows that, helical spring high-frequency alternating load effect under, Cyclic Stress is too fast, cause
Helical spring deformation is set to concentrate on several leading circle, it is difficult in time by load transmission to other springs, eventually lead to spring breakage.
Currently, for the prevention of helical spring fracture, mainly from the material property for improving spring, to extend spiral
The service life of spring.But after adjustment helical spring material performance, unfavorable shadow may be generated to dynamics of vehicle performance
It rings, and the fracture of most helical spring is before it is on active service period, adjustment material property mode, which is still difficult to eradicate this, asks
Topic, and higher cost.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of rail vehicle spirals
The built-in shock-absorbing means of spring inhibits helical spring high-frequency vibration using passive type dynamic absorber principle, can be used for solving rail
Spring breakage problem, improves the safety in operation of rail vehicle caused by road vehicle helical spring vibrational energy is concentrated.
The purpose of the present invention can be achieved through the following technical solutions:
It is an object of the present invention to proposing a kind of built-in shock-absorbing means of rail vehicle helical spring, including from
Under to the erection support, damping body and weight mass block being above sequentially placed into inside helical spring, the erection support and carrying institute
The axle box rubber packing for stating helical spring bottom end is fixedly connected, and two end faces up and down of the damping body are machined with along longitudinal direction recessed
Slot is machined with the protrusion being slidably matched with the groove in the upper surface of erection support and the lower end surface of weight mass block respectively,
The backstop spiral shell of the length travel of the restricted weight mass block of right angle setting and damping body is gone back on longitudinal both ends of the erection support
Bar.
Further, the damping body includes being located in the middle vulcanized rubber body, and be bonded in the vulcanization respectively
The second metal layer of rubber bodies upper and lower ends is machined with the groove in second metal layer.
Further, the groove is dovetail groove, and the protrusion is the trapezoidal tenon with dovetail groove mortise-tenon joint.
Further, there is the first metal layer protruding upward on the middle position of the axle box rubber packing, it is described
It is fixedly connected between erection support and the first metal layer by a plurality of positioning bolts.
Further, close to longitudinal direction, end positions are also reserved with screw thread slot on the erection support, in screw thread slot
Inside vertically it is fixedly installed with the backstop screw rod.
The second object of the present invention is to propose a kind of rail vehicle helical spring structure, including is arranged in rail vehicle
On helical spring and above-mentioned built-in shock-absorbing means, the upper and lower ends of the helical spring be respectively held against rail vehicle
Framework and axle box rubber packing.
In the present invention by way of being built in helical spring, without being modified to existing rail vehicle structure；Damping
By trapezoidal tenon and dovetail groove mortise-tenon joint, easy to disassemble and replacement is led to for body and erection support, damping body and weight mass block
The quality of the damping body for replacing different rubber compounding ratios and adjustment weight mass block is crossed to absorb the energy of different vibration frequencies；Peace
Dress support is consolidated in the axle box rubber packing below helical spring by positioning bolt and protrudes metal layer；It is stretched out under erection support horizontal
To backstop screw to prevent weight mass block and damping body lateral displacement excessive.
Compared with prior art, the present invention can be inhaled by adding powered shock absorption device inside rail vehicle helical spring
Receive helical spring concentrate high-frequency vibratory energy, prevent by helical spring high frequency load effect under energy concentrate caused by spring break
It splits, installs, replaces and dismantle very convenient, cost economic.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Description of symbols in figure:
1- the first metal layer, 2- helical spring, 3- weight mass block, 4- damping body, 5- erection support, 6- groove, 7- are fixed
Position bolt, 8- backstop screw rod.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
Embodiment 1
A kind of built-in shock-absorbing means of rail vehicle helical spring, structure is shown in Figure 1, including from top to bottom according to
The secondary erection support 5 being placed in inside helical spring 2, damping body 4 and weight mass block 3, erection support 5 and carrying helical spring 2
The axle box rubber packing of bottom end is fixedly connected, and two end faces up and down of damping body 4 are machined with groove 6 along longitudinal direction, in installation branch
The upper surface of seat 5 and the lower end surface of weight mass block 3 are machined with the protrusion being slidably matched with groove 6 respectively, and erection support 5 is indulged
The backstop screw rod 8 of right angle setting restricted weight mass block 3 and the length travel of damping body 4 is gone back on both ends.
In a specific embodiment, shown in Figure 1, damping body 4 includes being located in the middle vulcanized rubber body, with
And it is bonded in the second metal layer of vulcanized rubber body upper and lower ends respectively, fluted 6 are processed in second metal layer.The present embodiment
In, second metal layer can be made of steel, can also be made of other rigid metals, sulphur used by vulcanized rubber body
Rubber compounding can be adjusted than to reach suitable rigidity and damping capacity according to design requirement by changing rubber.
In another specific embodiment, referring again to shown in Fig. 1, groove 6 is dovetail groove, and protrusion is and dovetail chase mortise
The trapezoidal tenon of fourth of the twelve Earthly Branches connection.
It is upward referring again to having shown in Fig. 1, on the middle position of axle box rubber packing in another specific embodiment
The first metal layer 1 of protrusion is fixedly connected between erection support 5 and the first metal layer 1 by a plurality of positioning bolts 7.
In another specific embodiment, referring again to shown in Fig. 1, on erection support 5 also close to longitudinal direction end positions
It is reserved with screw thread slot, backstop screw rod 8 is vertically fixedly installed in screw thread slot.Pass through the design of backstop screw rod 8, Ke Yiyou
The length travel of effect limitation weight mass block 3 and damping body 4, avoids it from colliding helical spring 2 and influence dynamics of vehicle performance.
In the various embodiments described above, in use, first by the axle box rubber packing of erection support 5 consolidation and 2 lower end of helical spring
On, then (preferably dovetail groove and trapezoidal tenon constitute the joinery and its construction) installation that is successively slidably matched by position from top to bottom damps
Body 4 and weight mass block 3, and guarantee that damping body 4 and surrounding/top of weight mass block 3 do not connect with helical spring 2 Deng
Touching, finally, installing backstop screw rod 8 in 5 two sides of erection support.After prolonged use, discovery adds built-in shock-absorbing means
The fracture rate of rail vehicle helical spring substantially reduce.
Embodiment 2
A kind of rail vehicle helical spring structure, it is shown in Figure 2, including helical spring 2 on the rail vehicle is arranged,
And the built-in shock-absorbing means of above embodiment 1, the upper and lower ends of helical spring 2 be respectively held against rail vehicle framework and
Axle box rubber packing.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be of the invention
Within protection scope.
Claims (6)
1. a kind of built-in shock-absorbing means of rail vehicle helical spring, which is characterized in that including being sequentially placed into spiral shell from top to bottom
Spring (2) internal erection support (5), damping body (4) and weight mass block (3) are revolved, described in the erection support (5) and carrying
The axle box rubber packing of helical spring (2) bottom end is fixedly connected, and two end faces up and down of the damping body (4) are machined with along longitudinal direction
Groove (6), be machined with respectively and the groove (6) in the upper surface of erection support (5) and the lower end surface of weight mass block (3)
The protrusion being slidably matched goes back the restricted weight mass block (3) of right angle setting and damping on longitudinal both ends of the erection support (5)
The backstop screw rod (8) of the length travel of body (4).
2. a kind of built-in shock-absorbing means of rail vehicle helical spring according to claim 1, which is characterized in that described
Damping body (4) include for being located in the middle vulcanized rubber body, and being bonded in the vulcanized rubber body upper and lower ends respectively
Two metal layers are machined with the groove (6) in second metal layer.
3. a kind of built-in shock-absorbing means of rail vehicle helical spring according to claim 1, which is characterized in that described
Groove (6) be dovetail groove, the protrusion is trapezoidal tenon with dovetail groove mortise-tenon joint.
4. a kind of built-in shock-absorbing means of rail vehicle helical spring according to claim 1, which is characterized in that described
Axle box rubber packing middle position on there is the first metal layer (1) protruding upward, the erection support (5) and the first gold medal
Belong to and being fixedly connected between layer (1) by a plurality of positioning bolts (7).
5. a kind of built-in shock-absorbing means of rail vehicle helical spring according to claim 1, which is characterized in that described
Erection support (5) on close to longitudinal end positions be also reserved with screw thread slot, be vertically fixedly mounted in screw thread slot
State backstop screw rod (8).
6. a kind of rail vehicle helical spring structure, the helical spring (2) including setting on the rail vehicle, and as right is wanted
Any built-in shock-absorbing means of 1-5 is sought, the upper and lower ends of the helical spring (2) are respectively held against the framework of rail vehicle
And axle box rubber packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811193995.2A CN109488714B (en) | 2018-10-11 | 2018-10-11 | A kind of built-in shock-absorbing means of rail vehicle helical spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811193995.2A CN109488714B (en) | 2018-10-11 | 2018-10-11 | A kind of built-in shock-absorbing means of rail vehicle helical spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109488714A CN109488714A (en) | 2019-03-19 |
| CN109488714B true CN109488714B (en) | 2019-11-05 |
Family
ID=65689831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811193995.2A Expired - Fee Related CN109488714B (en) | 2018-10-11 | 2018-10-11 | A kind of built-in shock-absorbing means of rail vehicle helical spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109488714B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822000B (en) * | 2019-11-18 | 2023-12-22 | 珠海格力电器股份有限公司 | Vibration absorber with adjustable vibration reduction frequency band and air conditioning unit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1936389A (en) * | 1932-07-11 | 1933-11-21 | Gen Steel Castings Corp | Spring device |
| DE3534658A1 (en) * | 1985-09-28 | 1986-06-05 | Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen | Engine mount |
| JP2007198477A (en) * | 2006-01-25 | 2007-08-09 | Tokai Rubber Ind Ltd | Dynamic damper and electronic device |
| CN201387377Y (en) * | 2009-02-19 | 2010-01-20 | 上海通用汽车有限公司 | Mass-spring type dynamic vibration absorber |
| CN103047336B (en) * | 2012-12-25 | 2014-08-27 | 国家电网公司 | Method for controlling structural acoustic transmission on basis of combined type vibration isolation device |
| CN203384280U (en) * | 2013-06-20 | 2014-01-08 | 上海柴油机股份有限公司 | Power assembly damp auxiliary shock absorber |
| RU2597696C2 (en) * | 2015-01-12 | 2016-09-20 | Олег Савельевич Кочетов | Double vibration isolation system by kochetov |
| RU2662335C1 (en) * | 2017-07-14 | 2018-07-25 | Олег Савельевич Кочетов | Double vibration isolation system |
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2018
- 2018-10-11 CN CN201811193995.2A patent/CN109488714B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN109488714A (en) | 2019-03-19 |
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Granted publication date: 20191105 |