CN109488714A - 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
- CN109488714A CN109488714A CN201811193995.2A CN201811193995A CN109488714A CN 109488714 A CN109488714 A CN 109488714A CN 201811193995 A CN201811193995 A CN 201811193995A CN 109488714 A CN109488714 A CN 109488714A
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- China
- Prior art keywords
- helical spring
- rail vehicle
- erection support
- shock
- built
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- 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.)
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Classifications
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- 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
Abstract
The present invention relates to a kind of built-in shock-absorbing means of rail vehicle helical spring, including leading to the erection support being sequentially placed into inside helical spring from down, 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
Formula 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,
Helical spring deformation is caused 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 shell
Revolve the service life of spring.But after adjustment helical spring material performance, it is unfavorable to generate to dynamics of vehicle performance
It influences, and most helical spring fractures, before it is on active service the period, adjustment material property mode is still difficult to eradicate this
Problem, 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
Lead to the erection support being sequentially placed into inside helical spring, damping body and weight mass block, the erection support and carrying from down
The axle box rubber packing of the helical spring bottom end is fixedly connected, and two end faces up and down of the damping body are machined with along longitudinal direction
Groove, be machined in the upper surface of erection support and the lower end surface of weight mass block and be slidably matched with the groove respectively
Protrusion goes back the length travel of the restricted weight mass block of right angle setting and damping body on longitudinal both ends of the erection support
Backstop screw rod.
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 railcar
Helical spring and above-mentioned built-in shock-absorbing means, the upper and lower ends of the helical spring on are respectively held against railcar
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
Body and erection support, damping body and weight mass block by trapezoidal tenon and dovetail groove mortise-tenon joint, it is easy to disassemble with replace,
By replacing the damping body of different rubber compounding ratios and adjusting the quality of weight mass block to absorb the energy of different vibration frequencies
Amount；Erection support is consolidated in the axle box rubber packing below helical spring by positioning bolt and protrudes metal layer；Under erection support
Lateral backstop screw is stretched out 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
Fracture, installation are replaced 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 the technology of the present invention side
Implemented premised on case, the detailed implementation method and specific operation process are given, but protection scope of the present invention is unlimited
In following embodiments.
Embodiment 1
A kind of built-in shock-absorbing means of rail vehicle helical spring, structure is shown in Figure 1, including causes from down
Erection support 5, damping body 4 and the weight mass block 3 being sequentially placed into inside helical spring 2, erection support 5 and carrying spiral bullet
The axle box rubber packing of 2 bottom end of spring is fixedly connected, and two end faces up and down of damping body 4 are machined with groove 6 along longitudinal direction, is being pacified
The lower end surface of the upper surface and weight mass block 3 that fill support 5 is machined with the protrusion being slidably matched with groove 6, erection support respectively
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 5 longitudinal both ends.
In a specific embodiment, shown in Figure 1, damping body 4 includes being located in the middle vulcanized rubber body,
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.This reality
It applies in example, second metal layer can be made of steel, can also be made of other rigid metals, vulcanized rubber body is adopted
Vulcanized rubber can adjust rubber compounding than to reach suitable rigidity and damping capacity according to design requirement.
In another specific embodiment, referring again to shown in Fig. 1, groove 6 is dovetail groove, and protrusion is and dovetail groove
The trapezoidal tenon of mortise-tenon joint.
In another specific embodiment, have referring again to shown in Fig. 1, on the middle position of axle box rubber packing to
The first metal layer 1 protruded above 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.It, can be with by the design of backstop screw rod 8
The effectively length travel of limitation weight mass block 3 and damping body 4, avoids it from colliding helical spring 2 and influence dynamics of vehicle
Energy.
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 hinders
Buddhist nun's body 4 and weight mass block 3, and guarantee that surrounding/top of damping body 4 and weight mass block 3 does not occur with helical spring 2 etc.
Contact, finally, installing backstop screw rod 8 in 5 two sides of erection support.After prolonged use, discovery adds built-in absorbing dress
The fracture rate for the rail vehicle helical spring set substantially reduces.
Embodiment 2
A kind of rail vehicle helical spring structure, it is shown in Figure 1, including helical spring on the rail vehicle is arranged
2 and above embodiment 1 built-in shock-absorbing means, the upper and lower ends of helical spring 2 are respectively held against the structure of rail vehicle
Frame and axle box rubber packing.
Hair can be understood and used the above description of the embodiments is intended to facilitate those skilled in the art
It is bright.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 above-mentioned implementations
Example, those skilled in the art's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be
Within protection scope of the present invention.
Claims (6)
1. a kind of built-in shock-absorbing means of rail vehicle helical spring, which is characterized in that be sequentially placed into spiral shell including causing from down
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 true CN109488714A (en) | 2019-03-19 |
| CN109488714B CN109488714B (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811193995.2A Active CN109488714B (en) | 2018-10-11 | 2018-10-11 | A kind of built-in shock-absorbing means of rail vehicle helical spring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822000A (en) * | 2019-11-18 | 2020-02-21 | 珠海格力电器股份有限公司 | Vibration absorber with adjustable vibration reduction frequency band and air conditioning unit |
Citations (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 |
| CN103047336A (en) * | 2012-12-25 | 2013-04-17 | 重庆市电力公司电力科学研究院 | 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 |
-
2018
- 2018-10-11 CN CN201811193995.2A patent/CN109488714B/en active Active
Patent Citations (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 |
| CN103047336A (en) * | 2012-12-25 | 2013-04-17 | 重庆市电力公司电力科学研究院 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822000A (en) * | 2019-11-18 | 2020-02-21 | 珠海格力电器股份有限公司 | Vibration absorber with adjustable vibration reduction frequency band and air conditioning unit |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109488714B (en) | 2019-11-05 |
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