CN103643600A - Adjustable pre-tightening force double-layer vibration attenuation buckle system - Google Patents
Adjustable pre-tightening force double-layer vibration attenuation buckle system Download PDFInfo
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- CN103643600A CN103643600A CN201310744545.9A CN201310744545A CN103643600A CN 103643600 A CN103643600 A CN 103643600A CN 201310744545 A CN201310744545 A CN 201310744545A CN 103643600 A CN103643600 A CN 103643600A
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Abstract
The invention belongs to the field of urban mass transit, and discloses an adjustable pre-tightening force double-layer vibration attenuation buckle system. According to the adjustable pre-tightening force double-layer vibration attenuation buckle system disclosed by the invention, pre-tightening force inter-locking on a bottom plate elastic insulating pad (6) is formed in a gap between an upper bottom plate (5) and a lower bottom plate (7); the adjustable range of the pre-tightening force is 0.1-30KN; an adjusting method comprises the following steps: adjusting the locking height of a bottom plate connecting sleeve (4), or setting a pre-tightening force adjusting gasket I (3a) between the upper end surface of a baffle side (12) and a locking cover plate (2), or setting a pre-tightening force adjusting gasket II (3b) between the lower end surface of the baffle side (12) and the upper end surface of the upper bottom plate (5), or increasing the thickness of the baffle side (12). By adopting the system, the problem that the pre-tightening force is reduced as the double-layer vibration attenuation buckle system is worn in the application process or even crack occurs between the elastic insulating pads of the bottom plates and the upper and lower bottom plates are avoided, and the train security is ensured.
Description
Technical field
The invention belongs to urban track traffic field, be specifically related to a kind of adjustable pretightning force double-layer vibration damping fastener system.
Background technology
In recent years, subway transportation field at home, double-layer vibration damping fastener (self-locking rail two-layer vibration-damping noise-reducing fastener, patent No. CN2630303, utility model, applying date 2003.05.15) thus owing to thering is two-layer vibration isolation rubber layer, there is comparatively excellent damping property, obtained a large amount of application.But it is very accurate that the design fit tolerance of double-layer vibration damping fastener need to be controlled, otherwise easily there is gap phenomenon between fastener Double layer iron backing plate.
Simultaneously, the patent No. is a kind of quick detachable separate type double-layer vibration damping fastener system that ZL20122068 2492.3 proposes, adopt elastic insulated pad, the lower shoe of upper plate, base plate adapter sleeve, the two-sided projection of Nonlinear Design to realize the pre-assembled of product by interlocking cover plate, this fastener has low load and bends down rigidity, guarantee vibration damping amount, high rigidity under top load, the feature of assurance travel safety, can give full play to the elasticity of fastener intermediate rubber pad, guarantee the damping property of fastener; Set base plate adapter sleeve can not cause lateral shear to anchor bolt, has guaranteed the safety of driving; The adjustment pretightning force that fastener in use needs, after fastener structures is determined, its pretightning force is mainly decided by the gap between upper plate and lower shoe; If fastener weares and teares in use procedure, can cause gap increase, pretightning force between upper plate and lower shoe to reduce, even between the elastic insulated pad of base plate and upper and lower bottom plate, there will be gap, fastener rigidity is changed or cannot, in normal operating conditions, affect train safe.
Summary of the invention
For solving the problems of the technologies described above, the object of the invention is to propose a kind of double-layer vibration damping fastener system of adjustable pretightning force.
The present invention adopts following technical scheme for completing above-mentioned purpose:
A double-layer vibration damping fastener system for adjustable pretightning force, described fastener system includes elastic insulated pad, spring and track gauge block under anchor bolts assemblies, locking cover plate, base plate adapter sleeve, upper plate, the elastic insulated pad of base plate, lower shoe, rail; The upper surface of described lower shoe has boss, and described boss is two; Described upper plate has the through hole matching with boss that lower shoe has; The boss having on lower shoe is through the through hole having on upper plate; Described base plate adapter sleeve passes the described through hole of upper plate, and is enclosed within on the described boss of lower shoe; On described locking cover plate, the described boss of upper plate, have and all there is the through hole passing in order to the anchor bolt in anchor bolts assemblies; Described anchor bolt is the through hole on boss described in the through hole on cover plate and lower shoe through locking, and locking cover plate is pressed on described in lower shoe on boss and base plate adapter sleeve; The upper surface of described base plate adapter sleeve has detent; Described locking cover plate has the positioning convex coordinating with the detent having on base plate adapter sleeve; Described base plate adapter sleeve is that upper end has rib, and lower end has the cylinder of dead bolt; Between the groove of the dead bolt that base plate adapter sleeve lower end has on lower shoe, form the connection that convex-concave is combined; Withhold on upper plate the lower surface of the rib that base plate adapter sleeve upper end has, and the gap between upper plate and lower shoe forms the pretightning force interlocking to the elastic insulated pad of base plate; The pretightning force size of the described elastic insulated pad of base plate can regulate; The adjustable range of described pretightning force is 0.1KN～30KN; Described regulative mode is:
1) double-layer vibration damping fastener system is under pre-assembled state, and withhold on upper plate the lower surface of the rib that base plate adapter sleeve upper end has; Between the groove of the dead bolt that base plate adapter sleeve lower end has on lower shoe, form the connection that convex-concave is combined, and the upper surface of described dead bolt and the upper surface of groove closely cooperate; The upper surface of the upper surface of the above boss of lower shoe and the above rib of base plate adapter sleeve at grade, the gap between upper plate and lower shoe is highly controlled in locking by regulating base board adapter sleeve, thereby regulate upper plate and lower shoe pretightning force to the elastic insulated pad of base plate under pre-assembled state, the size of pretightning force is limited by the hot strength of base plate adapter sleeve; Described locking is highly the distance between rib upper surface and dead bolt upper surface; Regulate locking highly to make upper plate with locking reduction highly to bottom offset, change the gap between upper plate and lower shoe, regulate upper plate and the pretightning force of lower shoe to the elastic insulated pad of base plate;
2) double-layer vibration damping fastener system is under pre-assembled state, and withhold on upper plate the lower surface of the rib that base plate adapter sleeve upper end has; Make the upper surface of described rib and the upper surface of the above boss of lower shoe not at grade, and the upper surface of described rib is lower than the upper surface of described boss, make upper plate with base plate adapter sleeve to bottom offset, thereby change the gap between upper plate and lower shoe, regulate upper plate and the pretightning force of lower shoe to the elastic insulated pad of base plate; The mode of the elastic insulated pad pretightning force of above-mentioned regulating base board can be implemented by pretightning force adjusting washer (disk) I being set between the upper surface at rib described in base plate adapter sleeve and locking cover plate; Described pretightning force adjusting washer (disk) I is the annular with two lugs; Lug described in two is symmetrical arranged, and on described lug, has the groove that the positioning convex kiss that has on cover plate with locking is joined;
3), double-layer vibration damping fastener system when pre-assembled state, withhold on upper plate the lower surface of the rib that base plate adapter sleeve upper end has; Between the groove of the dead bolt that base plate adapter sleeve lower end has on lower shoe, form the connection that convex-concave is combined; Make the upper surface of the above rib of base plate adapter sleeve and the upper surface of the above boss of lower shoe not at grade, and the upper surface of described rib is higher than the upper surface of the above boss of lower shoe; During installation, by anchor bolt, locking cover plate is exerted pressure, and by locking cover plate, pressure is passed to the described rib on base plate adapter sleeve, make base plate adapter sleeve to upper plate, apply downward pressure downwards, change the gap between upper plate and lower shoe, regulate upper plate and the pretightning force of lower shoe to the elastic insulated pad of base plate; The mode of the elastic insulated pad pretightning force of above-mentioned regulating base board can be implemented by pretightning force adjusting washer (disk) II is set between the lower surface of rib described in base plate adapter sleeve and the upper surface of upper plate, the height of the difference in height between described rib upper surface and described boss upper surface for needing to regulate pretightning force to exert pressure; The thickness of pretightning force adjusting washer (disk) II is the height that needs adjusting pretightning force to exert pressure; The mode of the elastic insulated pad pretightning force of above-mentioned regulating base board also can be implemented by the thickness of rib described in direct increase base plate adapter sleeve, makes the upper surface of the above rib of base plate adapter sleeve higher than the upper surface of the above boss of lower shoe; The thickness that described in base plate adapter sleeve, rib increases equals the difference in height between described rib upper surface and described boss upper surface, is the height that needs adjusting pretightning force to exert pressure.
Described anchor bolts assemblies comprises anchor bolt, plain washer, spring washer.
Described pretightning force adjusting washer (disk) I is one or more, and the gross thickness of pretightning force adjusting washer (disk) I is 0.1mm ~ 3.5mm, and step-length scope is 0.1 ~ 0.5mm.
The quantity of described pretightning force adjusting washer (disk) II can be one or more, and the gross thickness of pretightning force adjusting washer (disk) II is 0.1mm ~ 3.5mm, and step-length scope is 0.1 ~ 0.5mm.
The minimizing excursion of the locking height of described base plate adapter sleeve is 0.1mm ~ 3.5mm, and step-length scope is 0.1 ~ 0.5mm.
Described in base plate adapter sleeve, the increase excursion of rib thickness is 0.1mm ~ 3.5mm, and step-length scope is 0.1 ~ 0.5mm.
The double-layer vibration damping fastener system of a kind of adjustable pretightning force that the present invention proposes, by the locking height of regulating base board adapter sleeve, or by the thickness of rib described in direct increase base plate adapter sleeve, or by pretightning force adjusting washer (disk) II is set between the lower surface of rib described in base plate adapter sleeve and the upper surface of upper plate, or by being set between the upper surface at rib described in base plate adapter sleeve and locking cover plate, the mode of pretightning force adjusting washer (disk) I controls the gap between upper plate and lower shoe, realized and in pre-assembled or installation process, regulated upper plate and the pretightning force of lower shoe to the elastic insulated pad of base plate, avoided double-layer vibration damping fastener system in use procedure owing to wearing and tearing, and cause pretightning force to reduce, even between the elastic insulated pad of base plate and upper and lower bottom plate, there is the generation of gap problem, guaranteed train safe, and have simple in structure, easy to operate feature.
Accompanying drawing explanation
Fig. 1 is general assembly drawing of the present invention.
Fig. 2 is the structural representation of upper plate in the present invention.
Fig. 3 is the partial schematic sectional view of upper plate in the present invention.
Fig. 4 is the structural representation of lower shoe in the present invention.
Fig. 5 is lower shoe partial schematic sectional view in the present invention.
Fig. 6 is the structural representation of base plate adapter sleeve in the present invention.
Fig. 7 is the sectional view of base plate adapter sleeve in the present invention.
Fig. 8 is the structural representation of anchor bolts assemblies in the present invention.
Fig. 9 is the structural representation of locking cover plate in the present invention.
Figure 10 is the sectional drawing of locking cover plate in the present invention.
Figure 11, Figure 12 carry out the schematic diagram of pretightning force adjusting under pre-assembled state.
Figure 13 is the structural representation of pretightning force adjusting washer (disk) I.
Figure 14, Figure 15 carry out the schematic diagram of pretightning force adjusting by anchor bolts assemblies site assembly.
Figure 16 is the structural representation of pretightning force adjusting washer (disk) II in the present invention.
In figure: 1, anchor bolts assemblies, 2, locking cover plate, 3a, pretightning force adjusting washer (disk) I, 3b, pretightning force adjusting washer (disk) II, 4, base plate adapter sleeve, 5, upper plate, 6, the elastic insulated pad of base plate, 7, lower shoe, 8, elastic insulated pad under rail, 9, spring, 10, track gauge block, 11, dead bolt, 12, end rib, 13, boss, 14, groove, 25, anchor bolt, 26, plain washer, 27, spring washer, 28, rail, 29, positioning convex, 30, detent.
The specific embodiment
Executing by reference to the accompanying drawings and specifically example is illustrated the present invention.
As shown in Figure 1, a double-layer vibration damping fastener system for adjustable pretightning force, described fastener system includes elastic insulated pad 8, spring 9 and track gauge block 10 under anchor bolts assemblies 1, locking cover plate 2, base plate adapter sleeve 4, upper plate 5, the elastic insulated pad 6 of base plate, lower shoe 7, rail; In conjunction with Fig. 8, described anchor bolts assemblies comprises anchor bolt 25, plain washer 26, spring washer 27.In conjunction with Fig. 4, Fig. 5, the upper surface of described lower shoe 7 has boss 13, and described boss 13 is two; In conjunction with Fig. 2, Fig. 3, described upper plate 7 has the through hole matching with boss that lower shoe has 13; The boss 13 having on lower shoe 7 is through the through hole having on upper plate 5; Described base plate adapter sleeve 4 passes the described through hole of upper plate 5, and is enclosed within on the described boss 13 and base plate adapter sleeve 4 of lower shoe 7; On described locking cover plate 2, the described boss 13 of upper plate, have and all there is the through hole passing in order to the anchor bolt 25 in anchor bolts assemblies 1; Described anchor bolt 25 is through the through hole on boss 13 described in the through hole on locking cover plate 2 and lower shoe, and locking cover plate 2 is pressed on described in lower shoe on boss 13; In conjunction with Fig. 9, described locking cover plate 2 has the positioning convex 29 coordinating with the detent 30 having on base plate adapter sleeve; In conjunction with Fig. 6, Fig. 7, the upper surface of described base plate adapter sleeve 4 has detent 30; The detent 30 having on the positioning convex 29 base plate adapter sleeves that locking cover plate 2 has fastens and is integrated the location of realizing between locking cover plate and base plate adapter sleeve; Described base plate adapter sleeve 4 has rib 12 for upper end, and lower end has the cylinder of dead bolt 11; Between the groove 14 of the dead bolt 11 that base plate adapter sleeve lower end has on lower shoe, form the connection that convex-concave is combined, the groove 14 on lower shoe by lower shoe the above boss 13 and the gap between lower shoe 11 form; The rib 12 that base plate adapter sleeve 4 upper ends have is withheld on upper plate 5, and the gap between upper plate 5 and lower shoe 7 forms the pretightning force interlocking to the elastic insulated pad 6 of base plate; The pretightning force size of the elastic insulated pad 6 of described base plate can regulate; The adjustable range of described pretightning force is 0.1KN～30KN; Described regulating measure method is:
1) under pre-assembled state, carry out pretightning force adjusting;
In conjunction with Figure 11, double-layer vibration damping fastener system is under pre-assembled state, and withhold on upper plate 5 lower surface of the rib 12 that base plate adapter sleeve upper end has; Between the groove 14 of the dead bolt 11 that base plate adapter sleeve 4 lower ends have on lower shoe, form the connection that convex-concave is combined, and the upper surface of the upper surface of described dead bolt 11 and groove 14 closely cooperates; The upper surface of the upper surface of the above boss 13 of lower shoe and the above rib 12 of base plate adapter sleeve at grade, by the locking of regulating base board adapter sleeve 4, highly control the gap between upper plate 5 and lower shoe 7, thereby regulate upper plate 5 and lower shoe 7 pretightning force to the elastic insulated pad 6 of base plate under pre-assembled state, the size of pretightning force is limited by the hot strength of base plate adapter sleeve 4; Described locking is highly the distance between rib 12 upper surfaces and dead bolt 11 upper surfaces; Regulate locking highly to make upper plate 5 with locking reduction highly to bottom offset, change the gap between upper plate 5 and lower shoe 7, regulate the pretightning force of upper plate 5 and 7 pairs of elastic insulated pads 6 of base plate of lower shoe; The minimizing excursion of described locking thickness is 0.1mm ~ 3.5mm, step-length scope 0.1 ~ 0.5mm.
As shown in figure 12, double-layer vibration damping fastener system is under pre-assembled state, and withhold on upper plate 5 lower surface of the rib 12 that base plate adapter sleeve upper end has; Make the upper surface of described rib 12 and the upper surface of the above boss 13 of lower shoe not at grade, and the upper surface of described rib 12 is lower than the upper surface of described boss 13, make upper plate 5 with base plate adapter sleeve 4 to bottom offset, thereby change the gap between upper plate 5 and lower shoe 7, regulate the pretightning force of upper plate 5 and 7 pairs of elastic insulated pads 6 of base plate of lower shoe; The mode of the elastic insulated pad pretightning force of regulating base board is implemented by pretightning force adjusting washer (disk) I 3a being set between the upper surface at rib 12 described in base plate adapter sleeve 4 and locking cover plate 3, as shown in figure 13, described pretightning force adjusting washer (disk) I 3a is the annular with two lugs; Lug described in two is symmetrical arranged, and on described lug, has the groove that the positioning convex kiss that has on cover plate with locking is joined; Described pretightning force adjusting washer (disk) I 3a is one or more, and the gross thickness of pretightning force adjusting washer (disk) I is 0.1mm ~ 3.5mm, and step-length scope is 0.1 ~ 0.5mm;
2) by anchor bolts assemblies site assembly, carry out pretightning force adjusting;
As shown in figure 14, double-layer vibration damping fastener system is when pre-assembled state, and withhold on upper plate 5 lower surface of the rib 12 that base plate adapter sleeve upper end has, between the groove 14 of the dead bolt 11 that base plate adapter sleeve 4 lower ends have on lower shoe, form the connection that convex-concave is combined, make the upper surface of base plate adapter sleeve 4 the above rib 12 and the upper surface of the above boss 13 of lower shoe not at grade, and make the upper surface of base plate adapter sleeve 4 the above rib 12 higher than the upper surface of the above boss 13 of lower shoe, the mode of the elastic insulated pad pretightning force of regulating base board is to implement by pretightning force adjusting washer (disk) II 3b is set between the lower surface at rib 12 described in base plate adapter sleeve 4 and the upper surface of upper plate 5, during installation, by 25 pairs of locking cover plates 2 of anchor bolt, exert pressure, 25 applied pressures of anchor bolt pass to the described rib 12 on base plate adapter sleeve 4 by locking cover plate 2 by pressure, make base plate adapter sleeve 4 to upper plate 5, apply downward pressure downwards, change the gap between upper plate 5 and lower shoe 7, regulate upper plate and the pretightning force of lower shoe to the elastic insulated pad 6 of base plate, the height of difference in height between described rib 12 upper surfaces and described boss 13 upper surfaces for needing to regulate pretightning force to exert pressure, as shown in figure 16, the thickness of pretightning force adjusting washer (disk) II 3b is the height that needs adjusting pretightning force to exert pressure, the quantity of described pretightning force adjusting washer (disk) II 3b can be one or more, and the gross thickness of pretightning force adjusting washer (disk) II is 0.1mm ~ 3.5mm, and step-length scope is 0.1 ~ 0.5mm.
In conjunction with Figure 15, the mode of the elastic insulated pad pretightning force of regulating base board also can be implemented by the thickness of rib 12 described in direct increase base plate adapter sleeve, makes the upper surface of the above rib 12 of base plate adapter sleeve higher than the upper surface of the above boss of lower shoe; During installation, by 25 pairs of locking cover plates 2 of anchor bolt, exert pressure, 25 applied pressures of anchor bolt pass to the described rib 12 on base plate adapter sleeve by locking cover plate 2 by pressure, make base plate adapter sleeve 4 to upper plate 5, apply downward pressure downwards, change the gap between upper plate 5 and lower shoe 7, regulate the pretightning force of upper plate 5 and 7 pairs of elastic insulated pads 6 of base plate of lower shoe; The thickness that described in base plate adapter sleeve 4, rib 12 increases equals the difference in height between described rib upper surface and described boss upper surface, is the height that needs adjusting pretightning force to exert pressure; Described in base plate adapter sleeve, the increase excursion of rib thickness is 0.1mm ~ 3.5mm, and step-length scope is 0.1 ~ 0.5mm.
Claims (6)
1. a double-layer vibration damping fastener system for adjustable pretightning force, described fastener system includes elastic insulated pad (8), spring (9) and track gauge block (10) under anchor bolts assemblies (1), locking cover plate (2), base plate adapter sleeve (4), upper plate (5), the elastic insulated pad of base plate (6), lower shoe (7), rail; The upper surface of described lower shoe (7) has boss (13), and described boss (13) is two; Described upper plate (5) has the through hole matching with boss that lower shoe has (13); The boss having on lower shoe (13) is through the through hole having on upper plate (5); Described base plate adapter sleeve (4) passes the described through hole of upper plate (5), and is enclosed within on the described boss (13) and base plate adapter sleeve (4) of lower shoe; On described locking cover plate (2), the described boss (13) of upper plate, have and all there is the through hole passing in order to the anchor bolt (25) in anchor bolts assemblies (1); Described anchor bolt (25) is through the through hole on boss (13) described in the through hole in locking cover plate (2) and lower shoe, will lock cover plate (2) and be pressed on described in lower shoe on boss (13); The upper surface of described base plate adapter sleeve (4) has detent (30); Described locking cover plate (2) has the positioning convex (29) coordinating with the detent (30) having on base plate adapter sleeve; Described base plate adapter sleeve (4) has rib (12) for upper end, and lower end has the cylinder of dead bolt (11); Between the groove (14) of the dead bolt (11) that base plate adapter sleeve lower end has on lower shoe, form the connection that convex-concave is combined, and the upper surface of the upper surface of described dead bolt (11) and groove (14) closely cooperates, the groove on lower shoe (14) consists of the above boss (13) and the gap between lower shoe (7) of lower shoe; Withhold on upper plate (5) lower surface of base plate adapter sleeve rib that upper end has (12); It is characterized in that: the gap between upper plate (5) and lower shoe (7) forms the pretightning force interlocking to the elastic insulated pad of base plate (6); The pretightning force size of the elastic insulated pad of described base plate (6) can regulate; The adjustable range of described pretightning force is 0.1KN～30KN; Described regulative mode is:
1) double-layer vibration damping fastener system is under pre-assembled state, and withhold on upper plate (5) lower surface of the rib (12) that base plate adapter sleeve (4) upper end has; Between the groove (14) of the dead bolt (11) that base plate adapter sleeve lower end has on lower shoe, form the connection that convex-concave is combined, and the upper surface of the upper surface of described dead bolt (11) and groove (14) closely cooperates; The upper surface of the upper surface of the above boss of lower shoe (13) and the above rib of base plate adapter sleeve (12) at grade, the gap between upper plate and lower shoe is highly controlled in locking by regulating base board adapter sleeve (4), thereby regulate upper plate (5) and lower shoe (7) pretightning force to the elastic insulated pad of base plate (6) under pre-assembled state, the size of pretightning force is subject to the hot strength restriction of base plate adapter sleeve (4); Described locking is highly the distance between rib (12) upper surface and dead bolt (11) upper surface; Regulate locking highly to make upper plate (5) with locking reduction highly to bottom offset, change the gap between upper plate (5) and lower shoe (7), regulate upper plate (5) and the pretightning force of lower shoe (7) to the elastic insulated pad of base plate (6);
2) double-layer vibration damping fastener system is under pre-assembled state, and withhold on upper plate (5) lower surface of the rib (12) that base plate adapter sleeve (4) upper end has; Make the upper surface of described rib (12) and the upper surface of the above boss of lower shoe (13) not at grade, and the upper surface of described rib (12) is lower than the upper surface of described boss (13), make upper plate (5) with base plate adapter sleeve (4) to bottom offset, thereby change the gap between upper plate (5) and lower shoe (7), regulate upper plate (5) and the pretightning force of lower shoe (7) to the elastic insulated pad of base plate (6); The mode of the elastic insulated pad pretightning force of above-mentioned regulating base board can be implemented by pretightning force adjusting washer (disk) I (3a) being set between the upper surface at rib (12) described in base plate adapter sleeve and locking cover plate (2); Described pretightning force adjusting washer (disk) I (3a) is for having the annular of two lugs; Lug described in two is symmetrical arranged, and on described lug, have with locking cover plate (2) on positioning convex (29) kiss that the has groove of joining;
3) double-layer vibration damping fastener system is when pre-assembled state, and withhold on upper plate the lower surface of the rib that base plate adapter sleeve upper end has; Between the groove of the dead bolt that base plate adapter sleeve lower end has on lower shoe, form the connection that convex-concave is combined, and the upper surface of described dead bolt and the upper surface of groove closely cooperate; Make the upper surface of the above rib of base plate adapter sleeve and the upper surface of the above boss of lower shoe not at grade, and the upper surface of the above rib of base plate adapter sleeve (12) is higher than the upper surface of the above boss of lower shoe (13); During installation, by anchor bolt (25), locking cover plate (2) is exerted pressure, and by locking cover plate (2), pressure is passed to the described rib (12) on base plate adapter sleeve (4), make base plate adapter sleeve (4) to upper plate (5), apply downward pressure downwards, change the gap between upper plate (5) and lower shoe (7), regulate upper plate (5) and the pretightning force of lower shoe (7) to the elastic insulated pad of base plate (6); The mode of the elastic insulated pad pretightning force of above-mentioned regulating base board is implemented by pretightning force adjusting washer (disk) II (3b) is set between the lower surface at rib (12) described in base plate adapter sleeve and the upper surface of upper plate (5), the height of the difference in height between described rib (12) upper surface and described boss (13) upper surface for needing to regulate pretightning force to exert pressure; The thickness of pretightning force adjusting washer (disk) II (3b) is the height that needs adjusting pretightning force to exert pressure; The mode of the elastic insulated pad pretightning force of above-mentioned regulating base board or by directly increasing the thickness enforcement of rib (12) described in base plate adapter sleeve, makes the upper surface of the above rib of base plate adapter sleeve (12) higher than the upper surface of the above boss of lower shoe (13); The thickness that rib described in base plate adapter sleeve (12) increases equals the difference in height between described rib upper surface and described boss upper surface, is the height that needs adjusting pretightning force to exert pressure.
2. the double-layer vibration damping fastener system of a kind of adjustable pretightning force according to claim 1, is characterized in that: described anchor bolts assemblies (1) comprises anchor bolt (25), plain washer (26), spring washer (27).
3. the double-layer vibration damping fastener system of a kind of adjustable pretightning force according to claim 1, it is characterized in that: described pretightning force adjusting washer (disk) I (3a) is for one or more, the gross thickness of pretightning force adjusting washer (disk) I (3a) is 0.1mm ~ 3.5mm, and step-length scope is 0.1 ~ 0.5mm.
4. the double-layer vibration damping fastener system of a kind of adjustable pretightning force according to claim 1, it is characterized in that: the quantity of described pretightning force adjusting washer (disk) II (3b) can be one or more, the gross thickness of pretightning force adjusting washer (disk) II (3b) is 0.1mm ~ 3.5mm, and step-length scope is 0.1 ~ 0.5mm.
5. the double-layer vibration damping fastener system of a kind of adjustable pretightning force according to claim 1, is characterized in that: the minimizing excursion of the locking height of described base plate adapter sleeve (4) is 0.1mm ~ 3.5mm, and step-length scope is 0.1 ~ 0.5mm.
6. the double-layer vibration damping fastener system of a kind of adjustable pretightning force according to claim 1, is characterized in that: the increase excursion of the described rib of base plate adapter sleeve (4) (12) thickness is 0.1mm ~ 3.5mm, and step-length scope is 0.1 ~ 0.5mm.
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| CN105297555A (en) * | 2015-10-16 | 2016-02-03 | 安徽省巢湖铸造厂有限责任公司 | Laterally locking type double-layer vibration damping fastener |
| CN107747255A (en) * | 2017-11-08 | 2018-03-02 | 西安卓控环保科技有限公司 | The steel rail vibration reduction fastener that a kind of lateral stiffness and vertical rigidity are separately controlled |
| RU191992U1 (en) * | 2019-02-22 | 2019-08-29 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Петербургский государственный университет путей сообщения Императора Александра I" | Lining |
| CN112982036A (en) * | 2021-02-20 | 2021-06-18 | 中铁隆昌铁路器材有限公司 | A fastener device for tram is shock-resistant insulating |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297555A (en) * | 2015-10-16 | 2016-02-03 | 安徽省巢湖铸造厂有限责任公司 | Laterally locking type double-layer vibration damping fastener |
| CN107747255A (en) * | 2017-11-08 | 2018-03-02 | 西安卓控环保科技有限公司 | The steel rail vibration reduction fastener that a kind of lateral stiffness and vertical rigidity are separately controlled |
| RU191992U1 (en) * | 2019-02-22 | 2019-08-29 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Петербургский государственный университет путей сообщения Императора Александра I" | Lining |
| CN112982036A (en) * | 2021-02-20 | 2021-06-18 | 中铁隆昌铁路器材有限公司 | A fastener device for tram is shock-resistant insulating |
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