CN102935848B - Diesel locomotive synchronous main alternator vibration-proof structure - Google Patents
Diesel locomotive synchronous main alternator vibration-proof structure Download PDFInfo
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- CN102935848B CN102935848B CN201210422634.7A CN201210422634A CN102935848B CN 102935848 B CN102935848 B CN 102935848B CN 201210422634 A CN201210422634 A CN 201210422634A CN 102935848 B CN102935848 B CN 102935848B
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Abstract
The invention discloses a kind of diesel locomotive synchronous main alternator vibration-proof structure, comprise synchronous main alternator and be arranged on the diesel engine on hull bottom plate, one end of synchronous main alternator is fixed on diesel engine output, and the other end is unsettled, and described synchronous main alternator bilateral symmetry arranges hydraulic buffer. The present invention utilizes the vibration damping drag characteristic of hydraulic buffer, can reduce the vertical and horizontal high and low frequency vibration of synchronous main alternator, and then reduction locomotive vibration, eliminate the structural strength premature fatigue of the mechanical parts such as synchronous main alternator, diesel engine and car body, and increase the service life, improve crew's comfortableness.
Description
Technical field
The present invention relates to a kind of vibration-proof structure, particularly relate to a kind of vibration-proof structure of diesel locomotive synchronous main alternator.
Background technology
At present, diesel locomotive synchronous main alternator one end is fixed on diesel engine output, and the other end is unsettled. Because rotor exists unbalanced weight, rotor when synchronous main alternator work, can produce vibration, and large (about 2000kg) of the quality of synchronous main alternator rotor, and therefore vibration force is difficult for eliminating. In the time that diesel engine is worked, also can produce vibration, this vibration is passed on rotor by shaft coupling simultaneously, causes synchronous main alternator vibration to strengthen, and even causes whole locomotive vibration. Traditional way is to adopt the rubber support assembling synchronous main alternator with rubber shock absorber to carry out vibration damping at present.
Diesel locomotive newly making, overhaul and in repair when diesel generating set is installed, first mounting diesel engine is with four bearings of rubber shock absorber, adjust again the rubber support assembling of synchronous main alternator, must just recline and not by compression, ball rod portion and the synchronous main alternator seat hole of rubber support assembling radially must be gapped along whole circumference, and gap is not less than 2mm. The seat that welds in accordance with regulations diesel engine is mended the lower bolster of the rubber support assembling of plate, back-up ring and synchronous main alternator, lower. The rubber support assembling of synchronous main alternator is made up of lower bolster, lower, buffering supporting, the seat of honour, bulb and adjustment backing plate etc.
The rubber support of employing with rubber shock absorber carries out vibration damping and has following shortcoming:
1. because the rubber support assembling of synchronous main alternator must just recline and not by compression, in the time that synchronous main alternator vibrates, it is upper that vertical vibration masterpiece is used in rubber buffer supporting, can cushion vertical vibration, can not reduce vertical vibration. And synchronous main alternator quality is large, in the time of synchronous main alternator vertical vibration, easily cause the vibration of locomotive whole-vehicle.
2. ball rod portion and the synchronous main alternator seat hole of rubber support assembling radially must gappedly be not less than 2mm along whole circumference, can not cushion oscillation crosswise. Unless when the amplitude of oscillation crosswise is greater than 2mm, rubber buffer supporting can cushion oscillation crosswise, but can not reduce oscillation crosswise. And in the time of synchronous main alternator oscillation crosswise, also easily cause rocking of locomotive whole-vehicle.
Summary of the invention
Object of the present invention is just to provide a kind of internal combustion engine synchronous main alternator vibration-proof structure, utilize hydraulic buffer vibration damping drag characteristic absorbing vibrational energy, transform fluid dissipation of heat, thereby reduce the vibration of synchronous main alternator, and not only reduce oscillation crosswise, also can reduce vertical vibration, overcome above-mentioned the deficiencies in the prior art part.
Object of the present invention realizes by following technical proposals:
A kind of diesel locomotive synchronous main alternator vibration-proof structure, comprise synchronous main alternator and be arranged on the diesel engine on hull bottom plate, one end of synchronous main alternator is fixed on diesel engine output, and the other end is unsettled, and described synchronous main alternator bilateral symmetry arranges hydraulic buffer.
As preferably, on synchronous main alternator sidewall and hull bottom plate, correspondence arranges mount pad, vertical hydraulic buffer is vertically arranged between synchronous main alternator and hull bottom plate by mount pad, and transverse hydraulic shock absorber is arranged between synchronous main alternator and hull bottom plate by mount pad level.
Further, the hydraulic cylinder external diameter of described vertical hydraulic buffer and transverse hydraulic shock absorber is φ 30mm～φ 200mm.
Further, more than described vertical hydraulic buffer and transverse hydraulic shock absorber have two covers, spacing distance 50mm～1000mm between the adjacent two vertical hydraulic buffers of cover and transverse hydraulic shock absorber.
As preferably, on synchronous main alternator sidewall and hull bottom plate, correspondence arranges mount pad, and tilting hydraulic buffer tilts to be arranged between synchronous main alternator and hull bottom plate by mount pad.
Further, the hydraulic cylinder external diameter of described tilting hydraulic buffer is φ 30mm～φ 200mm.
Further, described tilting hydraulic buffer has more than two pairs, spacing distance 50mm～1000mm between adjacent two tilting hydraulic buffers.
When hydraulic buffer work, piston moves back and forth in oil cylinder, fluid produces vibration damping resistance through orifice valve while flowing in piston cylinder, and simultaneously hydraulic buffer absorbs the vibrational energy of synchronous main alternator, and the vibrational energy of synchronous main alternator is converted into the heat energy of fluid and dissipation.
Beneficial effect of the present invention is: simple in structure, reasonable in design, utilize the vibration damping drag characteristic of hydraulic buffer, can reduce the vertical and horizontal high and low frequency vibration of synchronous main alternator, and then reduction locomotive vibration, eliminate the structural strength premature fatigue of the mechanical parts such as synchronous main alternator, diesel engine and car body, and increase the service life, improve crew's comfortableness.
Brief description of the drawings
Fig. 1 is the side structure schematic diagram of the embodiment of the present invention one;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the partial enlarged drawing at A place in Fig. 2;
Fig. 4 is the side structure schematic diagram of the embodiment of the present invention two;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the partial enlarged drawing at B place in Fig. 5.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the present invention is further illustrated.
Embodiment mono-
As shown in Figure 1, Figure 2 and Figure 3, a kind of diesel locomotive synchronous main alternator vibration-proof structure, comprise synchronous main alternator 5 and be arranged on the diesel engine 4 on hull bottom plate 3, one end of synchronous main alternator 5 is fixed on diesel engine 4 outputs, the other end is unsettled, on described synchronous main alternator 5 sidewalls and hull bottom plate 3, correspondence arranges mount pad 1, vertical hydraulic buffer 2 is vertically arranged between synchronous main alternator 5 and hull bottom plate 3 by mount pad 1, and transverse hydraulic shock absorber 6 is arranged between synchronous main alternator 5 and hull bottom plate 3 by mount pad 1 level. Shown in vertical hydraulic buffer 2 and transverse hydraulic shock absorber 6 are each in synchronous main alternator 5 both sides installs two, the spacing distance between two vertical hydraulic buffers 2 and between two transverse hydraulic shock absorbers 6 is 50mm～1000mm.
Vertical hydraulic buffer 2 and transverse hydraulic shock absorber 6 can adopt bolt, bearing pin to be connected and installed seat, have stronger rigidity, and long service life, is convenient to detachable maintaining.
The hydraulic cylinder external diameter of described vertical hydraulic buffer 2 and transverse hydraulic shock absorber 6 is φ 30mm～φ 200mm.
Vertical hydraulic buffer 2 has Vertical Vibration Reduction drag characteristic, and transverse hydraulic shock absorber 6 has lateral vibration absorbing drag characteristic, can reduce the vertical and oscillation crosswise of synchronous main alternator 5. Its vertical damped coefficient is 5kNs/m-400kNs/m, and laterally damped coefficient is 5kNs/m-400kNs/m, and damping system can be by the orifice valve adjustment in hydraulic buffer simultaneously.
Synchronous main alternator 5 adopts traditional rubber support assembling vibration damping, can only cushion vertical vibration. And the vertical hydraulic buffer 2 of use the present embodiment and transverse hydraulic shock absorber 6 can absorb the vibrational energy of synchronous main alternator 5, reducing synchronous main alternator 5 vibrates, vertical hydraulic buffer 2 reduces the vertical vibration of synchronous main alternator 5, and transverse hydraulic shock absorber 6 reduces the oscillation crosswise of synchronous main alternator 5.
Embodiment bis-
As shown in Figure 4, Figure 5 and Figure 6, the difference of the present embodiment and embodiment mono-is, on synchronous main alternator 5 sidewalls and hull bottom plate 3, correspondence arranges 2 pairs of mount pads 1, and tilting hydraulic buffer 7 tilts to be arranged between synchronous main alternator 5 and hull bottom plate 3 by mount pad 1. Spacing distance 50mm～1000mm between adjacent two tilting hydraulic buffers 7.
The hydraulic cylinder external diameter of described tilting hydraulic buffer 7 is φ 30mm～φ 200mm.
Synchronous main alternator 5 adopts traditional rubber support assembling vibration damping, can only cushion vertical vibration. And the tilting hydraulic buffer 7 that uses the present embodiment can absorb the vibrational energy of synchronous main alternator 5, both can reduce the vertical vibration of synchronous main alternator 5, can reduce again the oscillation crosswise of synchronous main alternator 5.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. a diesel locomotive synchronous main alternator vibration-proof structure, comprise synchronous main alternator and be arranged on the diesel engine on hull bottom plate, one end of synchronous main alternator is fixed on diesel engine output, the other end is unsettled, described synchronous main alternator bilateral symmetry arranges hydraulic buffer, it is characterized in that: on synchronous main alternator sidewall and hull bottom plate, correspondence arranges mount pad, vertical hydraulic buffer is vertically arranged between synchronous main alternator and hull bottom plate by mount pad, transverse hydraulic shock absorber is arranged between synchronous main alternator and hull bottom plate by mount pad level, the hydraulic cylinder external diameter of described vertical hydraulic buffer and transverse hydraulic shock absorber is φ 30mm～φ 200mm, more than described vertical hydraulic buffer and transverse hydraulic shock absorber have two covers, spacing distance 50mm～1000mm between the adjacent two vertical hydraulic buffers of cover and transverse hydraulic shock absorber, the vertical damped coefficient of vertical hydraulic buffer is 5kNs/m-400kNs/m, the horizontal damped coefficient of transverse hydraulic shock absorber is 5kNs/m-400kNs/m.
2. a diesel locomotive synchronous main alternator vibration-proof structure, comprise synchronous main alternator and be arranged on the diesel engine on hull bottom plate, one end of synchronous main alternator is fixed on diesel engine output, the other end is unsettled, described synchronous main alternator bilateral symmetry arranges hydraulic buffer, it is characterized in that: on synchronous main alternator sidewall and hull bottom plate, correspondence arranges mount pad, tilting hydraulic buffer tilts to be arranged between synchronous main alternator and hull bottom plate by mount pad, the hydraulic cylinder external diameter of described tilting hydraulic buffer is φ 30mm～φ 200mm, described tilting hydraulic buffer has more than two pairs, spacing distance 50mm～1000mm between adjacent two tilting hydraulic buffers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210422634.7A CN102935848B (en) | 2012-10-30 | 2012-10-30 | Diesel locomotive synchronous main alternator vibration-proof structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210422634.7A CN102935848B (en) | 2012-10-30 | 2012-10-30 | Diesel locomotive synchronous main alternator vibration-proof structure |
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| Publication Number | Publication Date |
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| CN102935848A CN102935848A (en) | 2013-02-20 |
| CN102935848B true CN102935848B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210422634.7A Active CN102935848B (en) | 2012-10-30 | 2012-10-30 | Diesel locomotive synchronous main alternator vibration-proof structure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113915281B (en) * | 2021-09-02 | 2023-02-28 | 季华实验室 | Vibration isolation device and vibration isolation system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2070621A (en) * | 1931-10-03 | 1937-02-16 | Rolland S Trott | Engine mounting |
| DE3413818A1 (en) * | 1984-04-12 | 1985-10-17 | Fichtel & Sachs Ag, 8720 Schweinfurt | Device for the damping of vibrations generated by motor vehicle internal combustion engines |
| DE102006017122A1 (en) * | 2006-04-05 | 2007-10-11 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Vehicle's system for assemblies of bearings regarding a motor vehicle's units like an engine has bearing elements with one bearing element controlled by a physical drive/power train model |
| CN201474778U (en) * | 2009-06-24 | 2010-05-19 | 哈尔滨东安发动机（集团）有限公司 | Container type combustion turbine generator group |
| CN102678295A (en) * | 2011-03-10 | 2012-09-19 | 湖南华强电气有限公司 | Electric generator unit of air conditioner for automobile |
-
2012
- 2012-10-30 CN CN201210422634.7A patent/CN102935848B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2070621A (en) * | 1931-10-03 | 1937-02-16 | Rolland S Trott | Engine mounting |
| DE3413818A1 (en) * | 1984-04-12 | 1985-10-17 | Fichtel & Sachs Ag, 8720 Schweinfurt | Device for the damping of vibrations generated by motor vehicle internal combustion engines |
| DE102006017122A1 (en) * | 2006-04-05 | 2007-10-11 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Vehicle's system for assemblies of bearings regarding a motor vehicle's units like an engine has bearing elements with one bearing element controlled by a physical drive/power train model |
| CN201474778U (en) * | 2009-06-24 | 2010-05-19 | 哈尔滨东安发动机（集团）有限公司 | Container type combustion turbine generator group |
| CN102678295A (en) * | 2011-03-10 | 2012-09-19 | 湖南华强电气有限公司 | Electric generator unit of air conditioner for automobile |
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| CN102935848A (en) | 2013-02-20 |
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Address after: 610057 Sichuan city of Chengdu province Chenghua District Second Bridge Road No. 31 Applicant after: CRRC CHENGDU CO., LTD. Address before: 610057 Sichuan city of Chengdu province Chenghua District Second Bridge Road No. 31 Applicant before: CSR Chengdu Co., Ltd. |
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