CN220724720U - Buckle locking type vibration damping fastener - Google Patents
Buckle locking type vibration damping fastener Download PDFInfo
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- CN220724720U CN220724720U CN202322451884.XU CN202322451884U CN220724720U CN 220724720 U CN220724720 U CN 220724720U CN 202322451884 U CN202322451884 U CN 202322451884U CN 220724720 U CN220724720 U CN 220724720U
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- 238000013016 damping Methods 0.000 title claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 44
- 229910052751 metal Inorganic materials 0.000 claims abstract description 44
- 238000002955 isolation Methods 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims description 30
- 238000004073 vulcanization Methods 0.000 claims description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 241001227561 Valgus Species 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 13
- 230000014759 maintenance of location Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 32
- 230000009467 reduction Effects 0.000 description 16
- 230000000694 effects Effects 0.000 description 11
- 238000012423 maintenance Methods 0.000 description 9
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 description 7
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- 238000000034 method Methods 0.000 description 4
- 241001669679 Eleotris Species 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
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- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The buckle locking type vibration damping fastener is provided with a buckle type structure and an isolation limiting structure, wherein the buckle type structure is formed by integrally vulcanizing and bonding rubber and metal. The utility model adopts the Z-shaped buckle type structure design to effectively prevent the vibration damping buckle from being totally invalid, and the vertical rigidity of the buckle system is not influenced by the torque of the backing plate bolt; the transverse rigidity of the fastener system has the functions of isolation, limit and retention, and the rigidity is not influenced by the torque of the backing plate bolt, so that the rail wave grinding is effectively reduced; the Z-shaped buckle type structural design or the detachable structural design improves the anti-overturning and anti-torsion capabilities of the fastener system, and is suitable for popularization.
Description
Technical Field
The utility model belongs to the technical field of fixing rail bars of railway tracks of fixed buildings, and particularly relates to a buckle locking type vibration damping fastener.
Background
In the running process of the urban rail transit system, vibration impact and noise are generated due to the collision of wheels and steel rails. The shock wave propagates in the track, tunnel, soil layer and ground building, produces corresponding vibration, and causes very adverse effects on the surrounding environment and the upper cover property. In order to reduce vibration and noise caused by urban rail transit, the development of a vibration reduction fastener system has become an indispensable work in the design of urban rail systems.
Currently, existing vibration damping fasteners absorb and attenuate impact energy through elastic deformation of the rubber layer as the train passes, so as to reduce vibration propagation of the rail system. However, due to factors such as inaccurate control of the torque of the backing plate bolt, too fast elastic attenuation of the rubber cushion layer, contact abrasion acting force of the wheel rail and the like, abnormal deflection wave grinding of the rail is caused, the rigidity of the backing plate is kept unstable, the service life of the vibration reduction fastener is low, so that the vibration reduction and noise reduction performance of the rail structure is weakened faster, and the maintenance cost is higher.
In addition, the novel urban construction system is generally of a three-dimensional structure, more urban upper cover properties are provided for the rail transit, and higher requirements for vibration reduction and noise reduction of the rail transit are provided. However, during the operation of the existing vibration damping fastener, the problems of abnormal wave grinding of a rail system and integral failure of the vibration damper are often caused by unstable rigidity, reduced binding force of a vulcanized layer, excessively small vertical rigidity and the like. In order to solve the above problems, the following technical solutions are proposed.
Disclosure of Invention
The utility model solves the technical problems that: the technical problems of abnormal wave grinding of a track system and integral failure of a shock absorber caused by unstable rigidity, reduced binding force of a vulcanized layer, excessively small vertical rigidity and the like of the conventional shock absorption fastener are solved through a Z-shaped buckle type structure and a limiting and restricting structure of vulcanization bonding.
The utility model adopts the technical scheme that: a buckle locking type vibration damping fastener is provided with a buckle type structure and an isolation limiting structure, wherein the buckle type structure is formed by integrally vulcanizing and bonding rubber and metal.
In the above technical solution, further: the buckle locking type vibration damping fastener is provided with a buckle type structure and an isolation limiting structure, wherein the buckle type structure is formed by integrally vulcanizing and bonding rubber and metal.
In the above technical solution, further: the buckling structure with the integrated rubber and metal vulcanization and Z-shaped structure comprises a rail bearing plate, a lower bottom plate, a middle elastic cushion I and an elastic cushion plate which are integrated by metal vulcanization; the middle parts of the left side and the right side of the rail bearing plate and the lower bottom plate are provided with a transverse limit stop block matched with the bulges, and an elastic backing plate is arranged between the rail bearing plate and the lower bottom plate and positioned outside the transverse limit stop block; an intermediate elastic cushion layer I is arranged between the rail bearing plate and the lower bottom plate and positioned at the inner side of the transverse limit stop; the middle elastic cushion layer I and the transverse limit stop block part of the rail bearing plate and the lower bottom plate form a Z-shaped buckle type structure.
In the above technical solution, further: the buckling structure with the Z-shaped structure formed by integrally vulcanizing and bonding rubber and metal comprises a left composite backing plate and a right composite backing plate which are respectively and integrally vulcanized and bonded by metal, and also comprises a metal middle bearing plate with an inverted T-shaped longitudinal section; the left composite backing plate and the right composite backing plate respectively comprise an upper bearing plate, a lower bearing plate and a middle elastic cushion II which are bonded into a whole through metal vulcanization; the horizontal arms at the left end and the right end of the T-shaped structure of the metal middle bearing plate are accommodated between the upper bearing plate and the lower bearing plate, and the outer side end of the metal middle bearing plate is obliquely stuck to the inner side end of the middle elastic cushion II to be matched properly; and the middle metal bearing plate, the middle elastic cushion layer II, the upper bearing plate and the lower bearing plate are detachably spliced into a whole to form a Z-shaped buckle type structure.
In the above technical solution, further: the left end and the right end of the middle elastic cushion layer I are in a Z-shaped structure with left-right axisymmetry; the middle elastic cushion layer I has no edges and corners and is in round corner transition; horizontal thickness H of Z-shaped structure at left and right ends of middle elastic cushion layer I 2 5-15 mm; z-switch thickness H of Z-shaped structure of middle elastic cushion I 3 10-30 mm; middle horizontal thickness H of middle elastic cushion I 1 5-15 mm; z-shape of intermediate elastic cushion IValgus angle theta of structure 1 Is 120-150 degrees.
In the above technical solution, further: the middle elastic cushion II is arranged between the outer sides of the upper bearing plate and the lower bearing plate; the metal middle bearing plate is arranged between the inner sides of the upper bearing plate and the lower bearing plate; the inner side end of the middle elastic cushion layer II and the outer side end of the metal middle bearing plate are obliquely stuck and properly matched to form a Z-shaped structure; z-shaped outer edge thickness h of Z-shaped structure of intermediate elastic cushion II 1 5-15 mm; z-switch thickness h of Z-shaped structure of intermediate elastic cushion II 2 20-50 mm; angle of refraction theta of inclined slope of intermediate elastic cushion II 2 Is 30-60 degrees.
In the above technical solution, further: the transverse limit stop separates the fastening component I from the spring strip component I and forms an isolation limit structure; the fastening assembly I comprises a backing plate bolt and a spring washer I; the spring strip assembly I comprises a track gauge block I, a cap nut I, a flat washer I, a spring strip I, a T-shaped bolt I and an iron seat.
In the above technical solution, further: the device also comprises an under-rail rubber backing plate I and an under-plate rubber backing plate I; the length of the rubber backing plate I under the rail is adapted to the length of the rail bottom; the under-plate rubber cushion plate I and the elastic cushion plate are arranged in parallel at an upper-lower interval, and cushion plate bolts penetrate through the elastic cushion plate and the under-plate rubber cushion plate I.
In the above technical solution, further: the device also comprises an under-board rubber cushion plate II, a first switch tie bolt assembly, a second switch tie bolt assembly and an under-rail rubber cushion plate II; the longitudinal section of the under-board rubber cushion plate II is in an inverted T-shaped structure, and the right-angle turning part of the under-board rubber cushion plate II of the T-shaped structure is suitably matched with the lower bearing plate; thickness h of thin part of rubber backing plate II under plate 3 5-15 mm; the thickness of the thick part of the rubber backing plate II under the plate is h 4 10-20 mm; the length of the rubber backing plate II under the rail is matched with that of the rail bottom.
In the above technical solution, further: the first turnout bolt is used for detachably and tightly connecting the upper bearing plate, the lower bearing plate, the metal middle bearing plate and the lower rubber backing plate II into a whole; and the first switch tie bolt separates the fastening component II from the spring strip component II and transversely limits the fastening component II to form an isolation limiting structure.
In the above technical solution, further: the second switch tie bolt component is used for fastening the upper bearing plate, the lower bearing plate, the middle elastic cushion II and the rubber cushion II below the plate into a whole and further comprises a spring washer II.
In the above technical solution, further: the spring strip assembly II comprises a track gauge block II, a cap nut II, a flat washer II, a spring strip II and a T-shaped bolt II.
Compared with the prior art, the utility model has the advantages that:
1. the Z-shaped buckle type structure and the limiting structure are mutually combined, so that vibration reduction of the fastener system is realized, the integral failure of the fastener system is avoided, the service life of the vibration reduction fastener system is prolonged, and the rigidity of the fastener system is kept stable; the technical problems of abnormal wave grinding of a track system, and integral failure of the shock absorber caused by unstable rigidity of the shock absorption fastener, reduced binding force of a vulcanized layer, excessively small vertical rigidity and the like are solved.
2. The utility model separates the bolt connection position of the switch tie from the composite backing plate independently, and a left, a middle and a right three-section bolt combined structure; the transverse limit is arranged, so that the stable maintenance of the transverse rigidity of the composite backing plate is effectively enhanced, the influence on the node rigidity of the backing plate due to the unstable factors generated by the tie bolts is avoided, and the stable maintenance of the vertical rigidity of the backing plate is enhanced; therefore, the action range of the shear adhesive layer is separated from the action range of the switch tie bolt, and the problem that the rigidity of the tie plate node is affected due to the instability factor generated by the switch tie bolt is avoided.
3. According to the utility model, the Z-shaped buckle is combined with the vulcanization bonding structure, and when the bonding force of the vulcanization bonding layer is reduced or fails, the connection effect between parts of the composite backing plate can be continuously maintained through the Z-shaped buckle structure; when the bonding force of the vulcanized bonding layer is reduced or fails, the detachable buckle type composite backing plate can continuously maintain the connection effect between parts of the composite backing plate through the double-fork bolt and the buckle structure, so that the stable maintenance of torsional rigidity is enhanced; if the vulcanized rubber layer is further invalid, only the left and right composite backing plates are needed to be replaced, so that maintenance cost is reduced.
4. The utility model adopts the Z-shaped buckle type structure design to effectively prevent the vibration damping fastener from being totally invalid; the vertical rigidity of the fastener system is not affected by the torque of the backing plate bolt; the transverse rigidity of the fastener system has the functions of isolation, limit and retention, and the rigidity is not influenced by the torque of the backing plate bolt, so that the rail wave grinding is effectively reduced; the Z-shaped buckle type structural design or the detachable structural design improves the anti-overturning and anti-torsion capabilities of the fastener system, and is suitable for popularization.
Drawings
FIG. 1 is a front view of a first embodiment of the present utility model;
FIG. 2 is a partial detail of the solution of FIG. 1;
FIG. 3 is a schematic view showing the dimensions of the intermediate elastic cushion I of the embodiment of FIG. 1;
fig. 4 is a front view of a second embodiment of the present utility model;
FIG. 5 is a partial detail view of the solution of FIG. 4;
FIG. 6 is a schematic view showing the dimensions of an intermediate elastic cushion II according to the embodiment of FIG. 4;
FIG. 7 is a schematic view showing the dimensions of a lower plate rubber mat II in the solution of FIG. 4;
in the figure: the novel railway track comprises a 1-rail bearing plate, a 2-lower bottom plate, a 3-middle elastic cushion I, a 4-elastic cushion, a 5-transverse limit stop, a 7-left composite cushion, an 8-right composite cushion, a 9-metal middle bearing plate, a 10-upper bearing plate, a 11-lower bearing plate, a 12-middle elastic cushion II, a 13-plate lower rubber cushion II, a 14-first switch tie bolt assembly, a 15-second switch tie bolt assembly and a 16-rail lower rubber cushion II; 5-101 backing plate bolts, 5-102 spring washers I, 5-201 gauge blocks I, 5-202 cap nuts I, 5-203 flat washers I, 5-204 spring strips I, 5-205T-shaped bolts I, 5-206 iron seats; 501-an under-rail rubber backing plate I and 502-an under-plate rubber backing plate I; 1401-spring washers II, 1402-gauge blocks II, 1043-cap nuts II, 1404-flat washers II, 1405-spring strips II, 1406-T bolts II.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 7 of the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
A buckle locking type vibration damping fastener is provided with a buckle type structure and an isolation limiting and limiting knot, wherein the buckle type structure is formed by integrally vulcanizing and bonding rubber and metal.
Firstly, it is to be noted that: the isolation limiting structure is arranged to limit the transverse displacement of the structure, so that the transverse rigidity of the structure is ensured to be stable, and rail waveform abrasion caused by overlarge transverse rigidity or unstable transverse rigidity is avoided. The function of the fastening assembly and the spring strip assembly is not limited.
Overall, the following is true: on one hand, the technical improvement point of the utility model adopts an isolation and limit method to solve the problem of unstable rigidity; on the other hand, the Z-shaped buckle locking method is adopted to ensure that the connecting effect between each part of the composite backing plate can be continuously maintained when the adhesive force of the rubber layer of the composite backing plate is insufficient, and the problem that the vibration damping fastener is wholly invalid due to the reduction of the adhesive force is avoided. Namely, the Z-shaped buckle type design structure is adopted to solve the problems.
Because, Z shape buckle formula locking scheme, other simple protruding, concave spacing schemes on the market, locking block effect promotes, and is more reliable. In addition, the Z-shaped buckle type structure and the limiting and restricting structures are mutually combined, so that vibration reduction of the fastener system is realized, the integral failure of the fastener system is avoided, the service life of the vibration reduction fastener system is prolonged, and the rigidity of the fastener system is kept stable; the technical problems of abnormal wave grinding of a track system, and integral failure of the shock absorber caused by unstable rigidity of the shock absorption fastener, reduced binding force of a vulcanized layer, excessively small vertical rigidity and the like are solved.
In the above embodiments (as shown in fig. 1 and 4), further: the buckle locking type vibration reduction fastener is provided with a buckle type structure and an isolation limiting structure, wherein the buckle type structure is formed by integrally vulcanizing and bonding rubber and metal. The utility model adopts the Z-shaped buckle to combine with the vulcanization bonding structure on the basis of continuing the structure that the rubber and the metal are vulcanized and bonded into a whole, and when the bonding force of the vulcanization bonding layer is reduced or fails, the connection effect between each part of the composite backing plate can be continuously maintained through the Z-shaped buckle structure.
The Z-shaped buckle type locking technical scheme comprises the following two technical schemes and specific embodiments:
the technical scheme is as follows: further to the above embodiment (as shown in fig. 2): the buckle type structure with the rubber and metal vulcanization bonded into a whole is Z-shaped and comprises a rail bearing plate 1, a lower bottom plate 2, a middle elastic cushion I3 and an elastic cushion 4 which are bonded into a whole through metal vulcanization. Wherein the rail bearing plate 1 and the lower bottom plate 2 are made of metal materials, and the middle elastic cushion layer I3 is made of nonmetal elastic materials. The middle parts of the left side and the right side of the rail bearing plate 1 and the lower bottom plate 2 are provided with a transverse limit stop 5 matched with the bulges, and an elastic base plate 4 is arranged between the rail bearing plate 1 and the lower bottom plate 2 and positioned outside the transverse limit stop 5; an intermediate elastic cushion I3 is arranged between the rail bearing plate 1 and the lower bottom plate 2 and positioned at the inner side of the transverse limit stop 5; the middle elastic cushion I3, the rail bearing plate 1 and the transverse limit stop 5 of the lower bottom plate 2 form a Z-shaped buckle type structure. And the rail bearing plate 1, the lower bottom plate 2, the middle elastic cushion I3 and the elastic cushion 4 are vulcanized and bonded into a whole, so that the structural strength is improved, and the failure problem is avoided.
The second technical scheme is as follows: further to the above embodiments (as shown in fig. 4 and 5): the buckle type structure with the rubber and metal vulcanized bonded integrally comprises a left composite backing plate 7 and a right composite backing plate 8 which are respectively and integrally vulcanized and bonded by metal, and also comprises a metal middle bearing plate 9 with an inverted T-shaped longitudinal section. The left composite backing plate 7 and the right composite backing plate 8 respectively comprise an upper bearing plate 10, a lower bearing plate 11 and a middle elastic cushion II 12 which are bonded together through metal vulcanization. Namely, the upper bearing plate 10, the lower bearing plate 11 and the middle elastic cushion II 12 are vulcanized into an integral structure, and the rest structures are detachable parts. On the basis, horizontal arms at the left end and the right end of the T-shaped structure of the metal middle bearing plate 9 are accommodated between the upper bearing plate 10 and the lower bearing plate 11, and the outer side end of the metal middle bearing plate 9 and the inner side end of the middle elastic cushion II 12 are obliquely stuck and properly matched to form a shearing force; and the middle metal bearing plate 9, the middle elastic cushion layer II 12, the upper bearing plate 10 and the lower bearing plate 11 are detachably spliced into a whole to form a Z-shaped buckle type structure, namely the composite Z-shaped buckle type structure is changed, so that the structural strength is effectively improved, the stability is kept, and the failure is prevented.
Based on the first technical solution (as shown in fig. 3), further: the left end and the right end of the middle elastic cushion layer I3 are in a Z-shaped structure with left-right axisymmetry; and the middle elastic cushion layer I3 has no edges and corners and is in round corner transition, so that the problem of stress concentration is avoided.
It should be noted that: the utility model comprises a dimension design, wherein the dimension design is obtained by a method for theoretically calculating preset parameters, and comprises the following steps:
s001, calculating the influence degree of the elastic layer on the rigidity of the fastener system by adopting a theoretical calculation method;
s002, determining elastic materials according to vibration reduction targets to be achieved;
s003, analyzing the influence degree of the thickness of the elastic layer and the turnover angle outside the elastic layer on the rigidity of the fastener system when the same materials are analyzed;
s004, presetting a parameter range according to a vibration reduction target to be realized;
s005, determining the optimal thickness of the elastic layer and the elastic layer external turning angle by adopting a target value optimization model. Therefore, the following technical scheme is obtained.
On the basis of the first technical scheme, the following steps are preferable: the middle elastic cushion I3 has a Z-shaped structure at the left and right ends and a horizontal thickness H 2 5-15 mm; z-switch thickness H of the Z-shaped structure of the intermediate elastic cushion I3 2 10-30 mm; the middle horizontal thickness H of the middle elastic cushion I3 1 5-15 mm; the Z-shaped structure of the middle elastic cushion layer I3 has an everting angle theta 1 Is 120-150 degrees.
Size example 1: (maximum value) H 1 ＝15mm,H 2 ＝15mm,H 3 ＝30mm,θ 1 ＝150°
Size example 2: (optimum value) H 1 ＝10mm，H 2 ＝10mm，H 3 ＝20mm,θ 1 ＝120°
Size example 3: (minimum value) H 1 ＝5mm，H 2 ＝5mm,H 3 ＝10mm,θ 1 ＝120°
(as shown in fig. 6), based on the second technical scheme, further: the middle elastic cushion II 12 is arranged between the outer sides of the upper bearing plate 10 and the lower bearing plate 11; the metal middle bearing plate 9 is arranged between the inner sides of the upper bearing plate 10 and the lower bearing plate 11; and the inner side end of the middle elastic cushion II 12 and the outer side end of the metal middle bearing plate 9 are obliquely and properly matched to form a Z-shaped structure.
(as shown in FIG. 6) the Z-shaped outside edge thickness h of the Z-shaped structure of the intermediate elastic cushion II 12 1 5-15 mm; z-switch thickness h of the Z-shaped structure of the intermediate elastic cushion II 12 2 20-50 mm; the intermediate elastic cushion II 12 is inclined at an angle theta 2 Is 30-60 degrees.
Size example 1: (maximum value) h 1 ＝15mm,h 2 ＝50mm,θ 2 ＝60°
Size example 2: (optimal value) h 1 ＝10mm,h 2 ＝30mm,θ 2 ＝60°
Size example 3: (minimum value) h 1 ＝5mm,h 2 ＝20mm,θ 2 ＝30°
Based on the first technical solution (as shown in fig. 1), further: the transverse limit stop 5 separates the fastening component I from the spring strip component I and forms an isolation limit structure; i.e. avoiding the occurrence of failure problems caused by sliding displacement or loosening of the fastener. The fastening assembly I comprises backing plate bolts 5-101 and spring washers I5-102; the spring washers I5-102 are used for guaranteeing the elastic buffering function of the fastening connection. The spring strip assembly I comprises a track gauge block I5-201, a cap nut I5-202, a flat washer I5-203, a spring strip I5-204, a T-shaped bolt I5-205 and an iron seat 5-206. The adoption of the cap nut I5-202 has a dustproof effect. The T-shaped bolts I5-205 can be used for automatically positioning and locking.
Based on the first technical solution (as shown in fig. 1), further: also included is an under-rail rubber tie plate I501 and an under-plate rubber tie plate I502. The length of the under-rail rubber backing plate I501 is adapted to the length of the rail bottom; the under-plate rubber backing plate I502 is arranged in parallel with the elastic backing plate 4 at an upper-lower interval, and the backing plate bolts 5-101 pass through the elastic backing plate 4 and the under-plate rubber backing plate I502. The elastic buffering vibration reduction effect of the fastening connection point position is ensured.
(as shown in fig. 4), based on the second technical scheme, further: the rail sleeper bolt assembly further comprises an under-plate rubber cushion plate II 13, a first switch sleeper bolt assembly 14, a second switch sleeper bolt assembly 15 and an under-rail rubber cushion plate II 16. Namely, a plurality of four bolt assemblies are adopted to realize the isolation and separation functions.
On the basis of the second technical scheme (as shown in fig. 7), the longitudinal section of the under-board rubber cushion plate II 13 is in an inverted T-shaped structure, and the right-angle turning part of the under-board rubber cushion plate II 13 in the inverted T-shaped structure is attached to the lower bearing plate 11 for proper matching; the thickness h of the thin part of the rubber backing plate II 13 under the plate 3 5-15 mm; the thickness of the thick part of the rubber backing plate II 13 under the plate is h 4 10-20 mm; the length of the under-rail rubber backing plate II 16 is matched with that of the rail bottom.
Size example 1: (maximum value) h 3 ＝15mm,h 4 ＝20mm
Size example 2: (optimal value) h 3 ＝10mm,h 4 ＝15mm
Size example 3: (minimum value) h 3 ＝5mm,h 4 ＝10mm
Based on the second technical scheme (embodiment), further: the first switch tie bolts 14 are used for detachably and tightly connecting the upper bearing plate 10, the lower bearing plate 11, the metal middle bearing plate 9 and the plate lower rubber backing plate II 13 into a whole; the detachable replacement function is realized. And the first switch tie bolt 14 separates the fastening component II from the spring strip component II, transversely limits the fastening component II and the spring strip component II, and forms an isolation limiting structure, namely the core utility model point.
(as shown in fig. 4), based on the second technical scheme, further: the second switch tie bolt assembly 15 fastens the upper carrier plate 10, the lower carrier plate 11, the middle elastic cushion II 12 and the under-plate rubber cushion II 13 together, and further comprises a spring washer II 1401. Namely, the elastic buffering and vibration reduction function of the fastening point position is realized.
(as shown in fig. 4), based on the second technical scheme, further: the spring bar assembly II comprises a track gauge block II 1402, a cap nut II 1403, a flat washer II 1404, a spring bar II 1405 and a T-shaped bolt II 1406. The effects of the above components are the same as those described above, and will not be described again.
The utility model also claims a snap-lock vibration damping fastener comprising a snap-lock vibration damping fastener as used in any of the snap-lock vibration damping fasteners.
From the above description it can be found that: the utility model separates the bolt connection position of the switch tie from the composite backing plate independently, and a left, a middle and a right three-section bolt combined structure; the transverse limit is arranged, so that the stable maintenance of the transverse rigidity of the composite backing plate is effectively enhanced, the influence on the node rigidity of the backing plate due to the unstable factors generated by the tie bolts is avoided, and the stable maintenance of the vertical rigidity of the backing plate is enhanced; therefore, the action range of the shear adhesive layer is separated from the action range of the switch tie bolt, and the problem that the rigidity of the tie plate node is affected due to the instability factor generated by the switch tie bolt is avoided.
According to the utility model, the Z-shaped buckle is combined with the vulcanization bonding structure, and when the bonding force of the vulcanization bonding layer is reduced or fails, the connection effect between parts of the composite backing plate can be continuously maintained through the Z-shaped buckle structure; when the bonding force of the vulcanized bonding layer is reduced or fails, the detachable buckle type composite backing plate can continuously maintain the connection effect between parts of the composite backing plate through the double-fork bolt and the buckle structure, so that the stable maintenance of torsional rigidity is enhanced; if the vulcanized rubber layer is further invalid, only the left and right composite backing plates are needed to be replaced, so that maintenance cost is reduced.
In summary, the utility model adopts the Z-shaped buckle type structure design to effectively prevent the whole vibration damping fastener from losing efficacy; the vertical rigidity of the fastener system is not affected by the torque of the backing plate bolt; the transverse rigidity of the fastener system has the functions of isolation, limit and retention, and the rigidity is not influenced by the torque of the backing plate bolt, so that the rail wave grinding is effectively reduced; the Z-shaped buckle type structural design or the detachable structural design improves the anti-overturning and anti-torsion capabilities of the fastener system, and is suitable for popularization.
In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model are included in the protection scope of the present utility model.
Claims (11)
1. The utility model provides a buckle locking formula damping fastener which characterized in that: the rubber and metal vulcanization integrated structure has a Z-shaped buckle type structure and an isolation limiting structure.
2. The snap-lock vibration damping fastener of claim 1, wherein: the buckling type structure with the integrated rubber and metal vulcanization bonding as a whole comprises a rail bearing plate (1), a lower bottom plate (2), a middle elastic cushion I (3) and an elastic cushion plate (4) which are integrated with each other through metal vulcanization bonding; wherein, the middle parts of the left side and the right side of the rail bearing plate (1) and the lower bottom plate (2) are provided with a transverse limit stop (5) which is matched with the bulges, and an elastic backing plate (4) is arranged between the rail bearing plate (1) and the lower bottom plate (2) and positioned outside the transverse limit stop (5); an intermediate elastic cushion layer I (3) is arranged between the rail bearing plate (1) and the lower bottom plate (2) and positioned at the inner side of the transverse limit stop (5); the middle elastic cushion layer I (3) and the transverse limit stop (5) of the rail bearing plate (1) and the lower bottom plate (2) form a Z-shaped buckle type structure.
3. The snap-lock vibration damping fastener of claim 1, wherein: the buckling type structure with the integrated rubber and metal vulcanization and Z-shaped structure comprises a left composite backing plate (7) and a right composite backing plate (8) which are respectively integrated with metal vulcanization and adhesion, and also comprises a metal middle bearing plate (9) with an inverted T-shaped longitudinal section; the left composite backing plate (7) and the right composite backing plate (8) respectively comprise an upper bearing plate (10), a lower bearing plate (11) and a middle elastic cushion layer II (12) which are bonded together through metal vulcanization; the horizontal arms at the left end and the right end of the T-shaped structure of the metal middle bearing plate (9) are accommodated between the upper bearing plate (10) and the lower bearing plate (11), and the outer side end of the metal middle bearing plate (9) is obliquely stuck to the inner side end of the middle elastic cushion II (12) to be matched properly; and the middle metal bearing plate (9) is detachably spliced with the middle elastic cushion layer II (12), the upper bearing plate (10) and the lower bearing plate (11) into a whole to form a Z-shaped buckle type structure.
4. The snap-lock vibration damping fastener of claim 2, wherein: the left end and the right end of the middle elastic cushion layer I (3) are in a Z-shaped structure with left-right axisymmetry; the middle elastic cushion layer I (3) has no edges and corners and is in round corner transition; the middle elastic cushion I (3) has a Z-shaped structure at the left end and the right end with a horizontal thickness H 2 5-15 mm; z-switch thickness H of the Z-shaped structure of the middle elastic cushion I (3) 3 10-30 mm; the middle horizontal thickness H of the middle elastic cushion I (3) 1 5-15 mm; the valgus angle theta of the Z-shaped structure of the middle elastic cushion layer I (3) 1 Is 120-150 degrees.
5. A snap-lock vibration damping fastener as claimed in claim 3 wherein: the middle elastic cushion II (12) is arranged between the outer sides of the upper bearing plate (10) and the lower bearing plate (11); the metal middle bearing plate (9) is arranged between the upper bearing plate (10) and the inner side of the lower bearing plate (11); the inner side end of the middle elastic cushion II (12) and the outer side end of the metal middle bearing plate (9) are obliquely stuck and properly matched to form a Z-shaped structure; the thickness h of the Z-shaped outer edge of the Z-shaped structure of the middle elastic cushion II (12) 1 5-15 mm; z-switch thickness h of the Z-shaped structure of the middle elastic cushion II (12) 2 20-50 mm; the intermediate elastic cushion II (12) has a bevel angle theta of inclined slope 2 Is 30-60 degrees.
6. The snap-lock vibration damping fastener of claim 2, wherein: the transverse limit stop (5) separates the fastening component I from the spring strip component I and forms an isolation limit structure; the fastening assembly I comprises a backing plate bolt (5-101) and a spring washer I (5-102); the spring strip assembly I comprises a track gauge block I (5-201), a cap nut I (5-202), a flat washer I (5-203), a spring strip I (5-204), a T-shaped bolt I (5-205) and an iron seat (5-206).
7. The snap-lock vibration damping fastener of claim 6, wherein: the device also comprises an under-rail rubber backing plate I (501) and an under-plate rubber backing plate I (502); the length of the under-rail rubber backing plate I (501) is matched with that of the rail bottom; the under-plate rubber cushion plates I (502) are arranged in parallel with the elastic cushion plates (4) at an upper-lower interval, and cushion plate bolts (5-101) penetrate through the elastic cushion plates (4) and the under-plate rubber cushion plates I (502).
8. A snap-lock vibration damping fastener as claimed in claim 3 wherein: the device also comprises an under-board rubber cushion plate II (13), a first switch tie bolt assembly (14), a second switch tie bolt assembly (15) and an under-rail rubber cushion plate II (16); the longitudinal section of the under-plate rubber cushion plate II (13) is of an inverted T-shaped structure, and the right-angle turning part of the under-plate rubber cushion plate II (13) of the T-shaped structure is fit with the lower bearing plate (11); the thickness h of the thin part of the under-plate rubber cushion plate II (13) 3 5-15 mm; the thickness of the thick part of the under-plate rubber backing plate II (13) is h 4 10-20 mm; the rubber pad II (16) under the rail is matched with the length of the rail bottom.
9. The snap-lock vibration damping fastener of claim 8, wherein: the first switch tie bolt assembly (14) is used for detachably and firmly connecting the upper bearing plate (10), the lower bearing plate (11), the metal middle bearing plate (9) and the plate lower rubber backing plate II (13) into a whole; and the first switch tie bolt assembly (14) separates the fastening assembly II from the spring strip assembly II and transversely limits the fastening assembly II to form an isolation limiting structure.
10. The snap-lock vibration damping fastener of claim 8, wherein: the second switch tie bolt assembly (15) is used for fastening the upper bearing plate (10), the lower bearing plate (11), the middle elastic cushion II (12) and the under-plate rubber cushion II (13) into a whole and further comprises a spring washer II (1401).
11. The snap-lock vibration damping fastener of claim 9, wherein: the spring strip assembly II comprises a track gauge block II (1402), a cap nut II (1403), a flat washer II (1404), a spring strip II (1405) and a T-shaped bolt II (1406).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322451884.XU CN220724720U (en) | 2023-09-08 | 2023-09-08 | Buckle locking type vibration damping fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322451884.XU CN220724720U (en) | 2023-09-08 | 2023-09-08 | Buckle locking type vibration damping fastener |
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| Publication Number | Publication Date |
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| CN220724720U true CN220724720U (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322451884.XU Active CN220724720U (en) | 2023-09-08 | 2023-09-08 | Buckle locking type vibration damping fastener |
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| Country | Link |
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| CN (1) | CN220724720U (en) |
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