CN205046425U - Double -deck damping fastener system of adjustable pretightning force - Google Patents
Double -deck damping fastener system of adjustable pretightning force Download PDFInfo
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- CN205046425U CN205046425U CN201520765847.9U CN201520765847U CN205046425U CN 205046425 U CN205046425 U CN 205046425U CN 201520765847 U CN201520765847 U CN 201520765847U CN 205046425 U CN205046425 U CN 205046425U
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Abstract
The utility model belongs to the technical field of the track traffic, a double -deck damping fastener system of adjustable pretightning force is proposed. A structure does that the double -deck damping fastener system of's an adjustable pretightning force carries out the pretightning force to middle resilient insulating pad is proposed: double -deck damping fastener system sets up the pretightning force and adjusts gasket I (9.1) under equipment state in advance between the up end of the lower terminal surface of flange (5.1) and upper plate (3), or, set up the pretightning force and adjust gasket II (9.2) between the up end of flange (5.1) and pretightning force regulating cover board (8), or, pretightning force regulation gasket III (9.3) set up between the up end of the lower terminal surface of arch (8.3) and boss (1.2), or, set up the pretightning force and adjust gasket IV (9.4) between the up end of the bottom surface of recess (8.1) and boss. The utility model discloses an adjust upper plate and the pretightning force of lower plate to middle resilient insulating pad in equipment or installation in advance.
Description
Technical field
The utility model belongs to technical field of rail traffic, the concrete double-layer vibration damping fastener system proposing a kind of adjustable pretightning force.
Background technology
In recent years, underground railway track field of traffic at home, double-layer vibration damping fastener, owing to having two-layer damping elastomer layer thus can show comparatively excellent damping property, obtains a large amount of application.
But it is very accurate that double-layer vibration damping fastener requires design fit tolerance to need, otherwise easily occur the phenomenon that pretightning force is excessive or too small.If pretightning force is excessive, then double-layer vibration damping fastener rigidity can be caused excessive, reduce damping capacity; If pretightning force is too small, double-layer vibration damping fastener upper plate may be caused, between lower shoe and middle spring felt pad, occur gap phenomenon, make fastener be in normal operating conditions, affect train safe.Because of double-layer vibration damping fastener main parts size as lower shoe, upper plate etc. usually adopt the production and processing of sand casting mode, its machining tolerance is difficult to accomplish very accurate.According to machine or precision casting process after casting, the cost of production of double-layer vibration damping fastener can be caused greatly to improve.
In addition, double-layer vibration damping fastener is after long-time operation uses, and permanent compressive strain can occur middle spring felt pad, can cause the reduction of double-layer vibration damping fastener pretightning force like this, even at upper plate, form gap phenomenon between lower shoe and middle spring felt pad, train safe can be affected.
Utility model content
For solving the problems of the technologies described above, the utility model object is the double-layer vibration damping fastener system proposing a kind of adjustable pretightning force.
The utility model adopts following technical scheme for completing above-mentioned purpose:
A double-layer vibration damping fastener system for adjustable pretightning force, described double-layer vibration damping fastener system includes elastic insulated pad under lower shoe, middle spring felt pad, upper plate, rail, spring, Insulation rail distance keeper, anchor bolts assemblies and insulation coupling pad; The two ends of described lower shoe upper surface have boss respectively; Described upper plate has the through hole that the boss that has with lower shoe coordinates; The boss that lower shoe has is through the through hole that upper plate has; Described double-layer vibration damping fastener system is provided with the connecting bolt in order to lower shoe, upper plate to be connected as one; Described lower shoe is connected as one by anchor bolts assemblies and sleeper; Described double-layer vibration damping fastener system is also provided with pretightning force regulating sleeve in order to carry out pretightning force adjustment to the middle spring felt pad between upper plate and lower shoe and pretightning force regulates cover plate; Described pretightning force regulating sleeve upper end has rib; Described pretightning force regulating sleeve is between the boss described in described upper plate through hole and lower shoe, and the rib that pretightning force regulating sleeve upper end has withholds the upper surface at upper plate, has gap between the lower surface of pretightning force regulating sleeve and lower shoe upper surface; Described pretightning force regulates cover plate to be positioned at the top of pretightning force regulating sleeve; The adjustment structure utilizing pretightning force regulating sleeve and pretightning force to regulate the pretightning force of elastic insulated pad between cover plate centering to carry out regulating is:
1) double-layer vibration damping fastener system in the assembled state, described pretightning force regulates between boss upper surface described on the lower surface of cover plate and lower shoe has gap, and described pretightning force regulates the upper surface of described rib on the lower surface of cover plate and pretightning force regulating sleeve to fit;
2) double-layer vibration damping fastener system in the assembled state, pretightning force is set between the lower surface and the upper surface of upper plate of rib described in pretightning force regulating sleeve and regulates pad I, make the upper surface of described rib on the upper surface of described boss on lower shoe and pretightning force regulating sleeve not at grade, and the upper surface of rib described in pretightning force regulating sleeve is higher than the upper surface of boss described on lower shoe;
3) double-layer vibration damping fastener system in the assembled state, regulate in the upper surface of rib described in pretightning force regulating sleeve and pretightning force and between cover plate, pretightning force is set regulates pad II, on upper surface and lower shoe that pretightning force regulates pad II, the upper surface of described boss is not at grade, and the upper surface of pretightning force adjustment pad II is higher than the upper surface of boss described on lower shoe;
4) double-layer vibration damping fastener system in the assembled state, described pretightning force regulates the middle part of cover plate lower surface to have the projection of joining with the centre bore kissing of pretightning force regulating sleeve, and described projection withholds the upper surface of boss described in lower shoe, and regulate in pretightning force and between the upper surface of boss described in lower surface protruding described in cover plate and lower shoe, pretightning force is set regulates pad III;
5) double-layer vibration damping fastener system in the assembled state, and described pretightning force regulates the middle part of cover plate lower surface to have the groove of joining with boss kissing described in lower shoe; Pretightning force is set between the upper surface of boss described in the bottom of pretightning force adjustment lid panel notches and lower shoe and regulates pad IV.
Described connecting bolt is T-shaped bolt; Boss described in lower shoe has the through hole passed in order to connecting bolt; Through hole described on lower shoe boss is slotted hole, and the bottom of described boss has the groove with the matching ends of T-shaped bolt; Through hole described on upper plate is stretched out in the upper end of described connecting bolt, and fastening by attaching nut, described upper plate, lower shoe is connected as one, is pressed between upper plate, lower shoe by middle spring felt pad.
Described connecting bolt is bar shaped bolt; Described connecting bolt is positioned at the upper end of boss described in lower shoe, and one-body molded with it; Through hole described on upper plate is stretched out in the upper end of described connecting bolt, and fastening by attaching nut, described upper plate, lower shoe is connected as one.
Described pretightning force regulates pad I to be one or more.
Described pretightning force regulates pad II to be one or more.
Described pretightning force regulates pad III to be one or more.
Described pretightning force regulates pad IV to be one or more.
The double-layer vibration damping fastener system of a kind of adjustable pretightning force that the utility model proposes, pad I is regulated by arranging pretightning force between the lower surface and the upper surface of upper plate of rib described in pretightning force regulating sleeve, or to regulate in the upper surface of rib described in pretightning force regulating sleeve and pretightning force and between cover plate, pretightning force is set regulates pad II, or to regulate in pretightning force and between the upper surface of boss described in the lower surface of boss described in cover plate and lower shoe, pretightning force is set regulates pad III, or, between the upper surface of boss described in the bottom surface of groove described in pretightning force adjustment cover plate and lower shoe, arrange pretightning force regulates the mode of pad IV to control the gap between upper plate and lower shoe, achieve and regulate upper plate and lower shoe to the pretightning force of the elastic insulated pad in centre in pre-assembled or installation process, avoid double-layer vibration damping fastener after long-time operation uses, permanent compressive strain can be there is in middle spring felt pad, cause the reduction of double-layer vibration damping fastener pretightning force, between the elastic insulated pad of base plate and upper and lower bottom plate, even there is the generation of gap problem, ensure that train safe, and it is simple to have structure, easy to operate feature, in addition, realize pretightning force adjustable after, also can reduce the requirement on machining accuracy of double-deck nonlinear vibration reduction fastener, and then cut down finished cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the structural representation of lower shoe in the utility model.
Fig. 4 is the structural representation of upper plate in the utility model.
Fig. 5 is the sectional drawing of pretightning force regulating sleeve in the utility model.
Fig. 6 is the first partial sectional view adjusting pretightning force by changing moment of torsion.
Fig. 7 is the second partial sectional view adjusting pretightning force by changing moment of torsion.
Fig. 8 is the third partial sectional view adjusting pretightning force by changing moment of torsion.
Fig. 9 is the partial sectional view of pretightning force roll adjustment pad I between pretightning force regulating sleeve and upper plate.
Figure 10 is that pretightning force regulates pad II to regulate the partial sectional view between cover plate at pretightning force regulating sleeve and pretightning force.
Figure 11 is that pretightning force roll adjustment pad IV regulates the first partial sectional view between cover plate at lower shoe and pretightning force.
Figure 12 is that pretightning force roll adjustment pad III regulates the second partial sectional view between cover plate at lower shoe and pretightning force.
Figure 13 is the first structural representation that pretightning force regulates cover plate.
Figure 14 is the second structural representation that pretightning force regulates cover plate.
Figure 15 is the third structural representation that pretightning force regulates cover plate.
In figure: 1, lower shoe, 1.1, anchor bolt hole, 1.2, boss, 1.4, through hole I, 1.5, groove, 2, middle spring felt pad, 3, upper plate, 3.1, spring seat, 3.3 through holes II, 4, elastic insulated pad under plate, 5, pretightning force regulating sleeve, 5.1, rib, 5.3, centre bore, 6, spring, 7, Insulation rail distance keeper, 8, pretightning force regulates cover plate, 8.1, groove, 8.3, protruding, 8.5, through hole, 9.1, pretightning force regulates pad I, 9.2, pretightning force regulates pad II, 9.3, pretightning force regulates pad III, 9.4, pretightning force regulates pad IV, 10, connecting bolt, 11, anchor bolts assemblies, 12, insulation coupling pad.
Detailed description of the invention
With specific embodiment, the utility model is illustrated by reference to the accompanying drawings:
As shown in Figure 1 and Figure 2; a double-layer vibration damping fastener system for adjustable pretightning force, described double-layer vibration damping fastener system is elastic insulated pad 4, spring 6, Insulation rail distance keeper 5, anchor bolts assemblies 11 and insulation coupling pad 12 under including lower shoe 1, middle spring felt pad 2, upper plate 3, rail; Composition graphs 3, the two ends of described lower shoe upper surface have boss 1.2 respectively; Composition graphs 4, described upper plate 3 has the through hole II 3.3 that the boss 1.2 that has with lower shoe coordinates; The boss 1.2 that lower shoe has is through the through hole II 3.3 that upper plate has; Described double-layer vibration damping fastener system is provided with the connecting bolt 10 in order to lower shoe 1, upper plate 3 to be connected as one; In this embodiment, described connecting bolt 10 is T-shaped bolt; Boss 1.2 described in lower shoe has the through hole I 1.4 passed in order to connecting bolt; Through hole I 1.4 described on lower shoe boss is slotted hole, and the bottom of described boss 1.2 has the groove with the matching ends of T-shaped bolt; Through hole described on upper plate is stretched out in the upper end of described connecting bolt 10, and fastening by attaching nut, described upper plate 3, lower shoe 1 is connected as one; Described connecting bolt 10 also can be as bar shaped bolt; Described connecting bolt 10 is positioned at the upper end of boss 1.2 described in lower shoe, and one-body molded with it; Through hole described on upper plate is stretched out in the upper end of described connecting bolt 10, and fastening by attaching nut, described upper plate 3, lower shoe 1 is connected as one; Described lower shoe 1 is connected as one by anchor bolts assemblies 12 and sleeper; Pretightning force regulating sleeve 5 and pretightning force that described double-layer vibration damping fastener system is also provided with in order to carry out pretightning force adjustment to the middle spring felt pad 2 between upper plate 1 and lower shoe 2 regulate cover plate 5; Described pretightning force regulating sleeve upper end has rib 5.1; Described pretightning force regulating sleeve 5 is between the boss 1.2 described in described upper plate 3 through hole and lower shoe, the rib 5.1 that pretightning force regulating sleeve upper end has is withheld in the upper surface of upper plate 3, has gap between the lower surface of pretightning force regulating sleeve 5 and lower shoe 3 upper surface; Described pretightning force regulates cover plate 8 to be positioned at the top of pretightning force regulating sleeve 5; The adjustment structure utilizing pretightning force regulating sleeve 5 and pretightning force to regulate the pretightning force of cover plate 8 to the elastic insulated pad in centre to regulate is:
1) as shown in Figure 6, in the assembled state, in conjunction with Figure 13, described pretightning force regulates cover plate 8 to be dull and stereotyped to double-layer vibration damping fastener system; Described pretightning force regulates between boss 1.2 upper surface described on the lower surface of cover plate 8 and lower shoe has gap, described pretightning force regulates the upper surface of described rib 5.1 on the lower surface of cover plate 8 and pretightning force regulating sleeve to fit, and the upper surface of rib 5.1 described in pretightning force regulating sleeve is higher than the upper surface of boss 1.2 described on lower shoe; During installation, cover plate 8 is regulated to apply moment of torsion by connecting bolt 10 pairs of pretightning forces, the moment of torsion that connecting bolt applies regulates cover plate 8 pressure to be passed to described rib 5.1 on pretightning force regulating sleeve 5 by pretightning force, pretightning force regulating sleeve 5 is made to apply downward pressure to upper plate 3 downwards, and different pressure is applied to upper plate 3 downwards downwards by applying different moment of torsion change pretightning force regulating sleeves 5 to connecting bolt 10, thus the gap changed between upper plate 3 and lower shoe 1, regulate upper plate and lower shoe to the pretightning force of the elastic insulated pad in centre.
As shown in Figure 7, in the assembled state, in conjunction with Figure 15, described pretightning force regulates the middle part of cover plate 8 lower surface to have the groove 8.1 of joining with boss kissing described in lower shoe to double-layer vibration damping fastener system; Pretightning force regulates between boss 1.2 upper surface described on the bottom surface of groove 8.1 described in cover plate and lower shoe has gap, described pretightning force regulates the upper surface of described rib 5.1 on the lower surface of cover plate 8 and pretightning force regulating sleeve to fit, and the upper surface of rib 5.1 described in pretightning force regulating sleeve is lower than the upper surface of boss 1.2 described on lower shoe; During installation, cover plate 8 is regulated to apply moment of torsion by connecting bolt 10 pairs of pretightning forces, the moment of torsion that connecting bolt applies regulates cover plate 8 pressure to be passed to described rib 5.1 on pretightning force regulating sleeve 5 by pretightning force, pretightning force regulating sleeve 5 is made to apply downward pressure to upper plate 3 downwards, and different pressure is applied to upper plate 3 downwards downwards by applying different moment of torsion change pretightning force regulating sleeves 5 to connecting bolt 10, thus the gap changed between upper plate 3 and lower shoe 1, regulate upper plate and lower shoe to the pretightning force of the elastic insulated pad in centre.
As shown in Figure 8, double-layer vibration damping fastener system in the assembled state, in conjunction with Figure 14, described pretightning force regulates the middle part of cover plate lower surface to have the projection 8.3 of joining with the centre bore kissing of pretightning force regulating sleeve, and has gap between the upper surface of boss 1.2 described in described projection 8.3 and lower shoe; Described pretightning force regulates the upper surface of described rib 5.1 on the lower surface of cover plate 8 and pretightning force regulating sleeve to fit, and the upper surface of rib 5.1 described in pretightning force regulating sleeve is higher than the upper surface of boss 1.2 described on lower shoe; During installation, cover plate 8 is regulated to apply moment of torsion by connecting bolt 10 pairs of pretightning forces, the moment of torsion that connecting bolt applies regulates cover plate 8 pressure to be passed to described rib 5.1 on pretightning force regulating sleeve 5 by pretightning force, pretightning force regulating sleeve 5 is made to apply downward pressure to upper plate 3 downwards, and different pressure is applied to upper plate 3 downwards downwards by applying different moment of torsion change pretightning force regulating sleeves 5 to connecting bolt 10, thus the gap changed between upper plate 3 and lower shoe 1, regulate upper plate and lower shoe to the pretightning force of the elastic insulated pad in centre.
As shown in Figure 9, double-layer vibration damping fastener system in the assembled state, pretightning force is set between the lower surface and the upper surface of upper plate 3 of rib 5.1 described in pretightning force regulating sleeve and regulates pad I 9.1, make the upper surface of described rib 5.1 on the upper surface of described boss 1.2 on lower shoe and pretightning force regulating sleeve not at grade, and the upper surface of rib 5.1 described in pretightning force regulating sleeve is higher than the upper surface of boss 1.2 described on lower shoe; In this embodiment, described pretightning force regulates cover plate 8 to be dull and stereotyped; The middle part that described pretightning force regulates cover plate 8 also to can be lower surface has the structure of projection or groove; During installation, regulate cover plate 8 to apply pressure by connecting bolt 10 pairs of pretightning forces, make pretightning force regulate the lower surface of cover plate 8 to withhold the upper surface of boss described in lower shoe; The quantity of described pretightning force adjusting washer (disk) I 9.1 can be one or more, by increasing or reduce the quantity regulating upper plate of pretightning force adjusting washer (disk) I and lower shoe to the pretightning force of the elastic insulated pad in centre;
As shown in Figure 10, double-layer vibration damping fastener system in the assembled state, regulate in the upper surface of rib 5.1 described in pretightning force regulating sleeve and pretightning force and between cover plate 8, pretightning force is set regulates pad II 9.2, on upper surface and lower shoe that pretightning force regulates pad II 9.2, the upper surface of described boss is not at grade, and the upper surface of pretightning force adjustment pad II 9.2 is higher than the upper surface of boss 1.2 described on lower shoe; In this embodiment, described pretightning force regulates cover plate 8 to be dull and stereotyped; The middle part that described pretightning force regulates cover plate 8 also to can be lower surface has the structure of projection or groove; During installation, regulate cover plate 8 to apply pressure by connecting bolt 10 pairs of pretightning forces, make pretightning force regulate the lower surface of cover plate 8 to withhold the upper surface of boss described in lower shoe; The quantity of described pretightning force adjusting washer (disk) II 9.2 can be one or more; By increasing or reduce the quantity regulating upper plate of pretightning force adjusting washer (disk) II and lower shoe to the pretightning force of the elastic insulated pad in centre;
As shown in figure 11, double-layer vibration damping fastener system in the assembled state, in conjunction with Figure 14, described pretightning force regulates the middle part of cover plate lower surface to have the projection 8.3 of joining with the centre bore kissing of pretightning force regulating sleeve, and described projection 8.3 withholds the upper surface of boss 1.2 described in lower shoe, and regulate in pretightning force and between the upper surface of boss 1.2 described in the lower surface of described in cover plate protruding 8.3 and lower shoe, pretightning force is set regulates pad III 9.3; During installation, regulate cover plate 8 to apply pressure by connecting bolt 10 pairs of pretightning forces, make pretightning force regulate the lower surface of described in cover plate 8 protruding 8.3 to withhold in the upper surface of described pretightning force adjusting washer (disk) III 9.3; The quantity of described pretightning force adjusting washer (disk) III 9.3 can be one or more; By increasing or reduce the quantity regulating upper plate of pretightning force adjusting washer (disk) III and lower shoe to the pretightning force of the elastic insulated pad in centre;
As shown in figure 12, in the assembled state, in conjunction with Figure 15, described pretightning force regulates the middle part of cover plate lower surface to have the groove 8.1 of joining with boss kissing described in lower shoe to double-layer vibration damping fastener system; Pretightning force is set between the upper surface of boss 1.2 described in the bottom of pretightning force adjustment lid panel notches 8.1 and lower shoe and regulates pad IV 9.4; During installation, regulate cover plate 8 to apply pressure by connecting bolt 10 pairs of pretightning forces, make pretightning force regulate the bottom of lid panel notches 8.1 and the upper surface of described pretightning force adjusting washer (disk) IV 9.4 to fit; The quantity of described pretightning force adjusting washer (disk) IV 9.4 can be one or more; By increasing or reduce the quantity regulating upper plate of pretightning force adjusting washer (disk) IV and lower shoe to the pretightning force of the elastic insulated pad in centre.
Claims (7)
1. a double-layer vibration damping fastener system for adjustable pretightning force, described double-layer vibration damping fastener system includes elastic insulated pad (4) under lower shoe (1), middle spring felt pad (2), upper plate (3), rail, spring (6), Insulation rail distance keeper (5), anchor bolts assemblies (11) and insulation coupling pad (12); The two ends of described lower shoe upper surface have boss (1.2) respectively; Described upper plate (3) has the through hole that the boss (1.2) that has with lower shoe coordinates
iI (3.3); The boss (1.2) that lower shoe has is through the through hole that upper plate has
iI(3.3); Described double-layer vibration damping fastener system is provided with the connecting bolt (10) in order to lower shoe (1), upper plate (3) to be connected as one; Described lower shoe (1) is connected as one by anchor bolts assemblies (12) and sleeper; It is characterized in that: pretightning force regulating sleeve (5) and pretightning force that described double-layer vibration damping fastener system is also provided with in order to carry out pretightning force adjustment to the middle spring felt pad (2) be positioned between upper plate (1) and lower shoe (3) regulate cover plate (8); Described pretightning force regulating sleeve (5) upper end has rib (5.1); Described pretightning force regulating sleeve (5) is positioned between described upper plate (1) through hole and the boss described in lower shoe (1.2), the rib (5.1) that pretightning force regulating sleeve upper end has is withheld in the upper surface of upper plate (3), has gap between the lower surface of pretightning force regulating sleeve (5) and lower shoe (3) upper surface; Described pretightning force regulates cover plate (8) to be positioned at the top of pretightning force regulating sleeve (5); The adjustment structure utilizing pretightning force regulating sleeve (5) and pretightning force to regulate cover plate (8) pretightning force to the elastic insulated pad in centre (2) to regulate is:
1) double-layer vibration damping fastener system in the assembled state, described pretightning force regulates between boss (1.2) upper surface described on the lower surface of cover plate (8) and lower shoe has gap, and described pretightning force regulates the lower surface (8) of cover plate to fit with the upper surface of described rib (5.1) on pretightning force regulating sleeve;
2) double-layer vibration damping fastener system in the assembled state, pretightning force is set between the lower surface and the upper surface of upper plate (3) of rib (5.1) described in pretightning force regulating sleeve and regulates pad I (9.1), make the upper surface of described rib (5.1) on the upper surface of described boss (1.2) on lower shoe and pretightning force regulating sleeve not at grade, and the upper surface of rib (5.1) described in pretightning force regulating sleeve is higher than the upper surface of boss (1.2) described on lower shoe;
3) double-layer vibration damping fastener system in the assembled state, regulate in the upper surface of rib (5.1) described in pretightning force regulating sleeve and pretightning force and between cover plate, pretightning force is set regulates pad II (9.2), on upper surface and lower shoe that pretightning force regulates pad II (9.2), the upper surface of described boss (1.2) is not at grade, and the upper surface of pretightning force adjustment pad II (9.2) is higher than the upper surface of boss (1.2) described on lower shoe;
4) double-layer vibration damping fastener system in the assembled state, described pretightning force regulates the middle part of cover plate (8) lower surface to have the projection (8.3) of joining with the centre bore kissing of pretightning force regulating sleeve, and described projection (8.3) withholds the upper surface of boss (1.2) described in lower shoe, and regulate in pretightning force and between the upper surface of boss (1.2) described in the lower surface of protruding (8.3) described in cover plate and lower shoe, pretightning force is set regulates pad III (9.3);
5) double-layer vibration damping fastener system in the assembled state, and described pretightning force regulates the middle part of cover plate (8) lower surface to have the groove (8.1) of joining with boss kissing described in lower shoe; Pretightning force is set between the upper surface of boss described in the bottom of pretightning force adjustment lid panel notches (8.1) and lower shoe and regulates pad IV (9.4).
2. the double-layer vibration damping fastener system of a kind of adjustable pretightning force as claimed in claim 1, is characterized in that: described connecting bolt (10) is bar shaped bolt; Described connecting bolt (10) is positioned at the upper end of boss described in lower shoe (1.2), and one-body molded with it; Through hole II (3.3) described on upper plate is stretched out in the upper end of described connecting bolt (10), and fastening by attaching nut, described upper plate (3), lower shoe (1) is connected as one.
3. the double-layer vibration damping fastener system of a kind of adjustable pretightning force as claimed in claim 1, is characterized in that: described connecting bolt (10) is T-shaped bolt; Boss (1.2) described in lower shoe has the through hole I (1.4) passed in order to connecting bolt; Through hole I (1.4) described on lower shoe boss is slotted hole, and the bottom of described boss (1.2) has and the groove of the matching ends of T-shaped bolt (1.5); Through hole II (3.3) described on upper plate is stretched out in the upper end of described connecting bolt (10), and fastening by attaching nut, described upper plate (3), lower shoe (1) is connected as one.
4. the double-layer vibration damping fastener system of a kind of adjustable pretightning force as claimed in claim 1, is characterized in that: described pretightning force regulates pad I (9.1) for one or more.
5. the double-layer vibration damping fastener system of a kind of adjustable pretightning force as claimed in claim 1, is characterized in that: described pretightning force regulates pad II (9.2) for one or more.
6. the double-layer vibration damping fastener system of a kind of adjustable pretightning force as claimed in claim 1, is characterized in that: described pretightning force regulates pad III (9.3) for one or more.
7. the double-layer vibration damping fastener system of a kind of adjustable pretightning force as claimed in claim 1, is characterized in that: described pretightning force regulates pad IV (9.4) for one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520765847.9U CN205046425U (en) | 2015-09-30 | 2015-09-30 | Double -deck damping fastener system of adjustable pretightning force |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520765847.9U CN205046425U (en) | 2015-09-30 | 2015-09-30 | Double -deck damping fastener system of adjustable pretightning force |
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| CN205046425U true CN205046425U (en) | 2016-02-24 |
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| CN201520765847.9U Active CN205046425U (en) | 2015-09-30 | 2015-09-30 | Double -deck damping fastener system of adjustable pretightning force |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10081915B2 (en) | 2016-07-20 | 2018-09-25 | Progress Rail Services Corporation | Track rail fastening mechanism and method |
| CN109235163A (en) * | 2018-11-06 | 2019-01-18 | 安徽神剑科技股份有限公司 | A kind of non-model control type bilayer nonlinear vibration reduction fastener |
| CN111304971A (en) * | 2016-11-24 | 2020-06-19 | 洛阳双瑞橡塑科技有限公司 | Double-deck damping fastener of low height |
| US11098454B2 (en) | 2019-04-01 | 2021-08-24 | Progress Rail Services Corporation | Track rail fastener and system for pedestal mounted track rail |
-
2015
- 2015-09-30 CN CN201520765847.9U patent/CN205046425U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10081915B2 (en) | 2016-07-20 | 2018-09-25 | Progress Rail Services Corporation | Track rail fastening mechanism and method |
| CN111304971A (en) * | 2016-11-24 | 2020-06-19 | 洛阳双瑞橡塑科技有限公司 | Double-deck damping fastener of low height |
| CN109235163A (en) * | 2018-11-06 | 2019-01-18 | 安徽神剑科技股份有限公司 | A kind of non-model control type bilayer nonlinear vibration reduction fastener |
| US11098454B2 (en) | 2019-04-01 | 2021-08-24 | Progress Rail Services Corporation | Track rail fastener and system for pedestal mounted track rail |
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