CN212377184U - Aluminum alloy double-adjustment inflatable inverted front shock absorber - Google Patents
Aluminum alloy double-adjustment inflatable inverted front shock absorber Download PDFInfo
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- CN212377184U CN212377184U CN202022124126.3U CN202022124126U CN212377184U CN 212377184 U CN212377184 U CN 212377184U CN 202022124126 U CN202022124126 U CN 202022124126U CN 212377184 U CN212377184 U CN 212377184U
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Abstract
The utility model relates to the technical field of shock absorbers, in particular to an aluminum alloy double-adjustment inflatable inverted front shock absorber, which comprises an aluminum cylinder assembly, a front fork tube assembly, a working cylinder assembly, a piston rod assembly, a circulation valve assembly, a recovery regulating valve assembly, an inflation bottle assembly and a compression regulating valve assembly; the aluminum cylinder assembly is provided with a first chamber along the axis; one end of the front fork tube assembly extends into the first chamber from one end of the first chamber. The utility model provides a bumper shock absorber before aluminium alloy double regulation inflatable inversion makes preceding bumper shock absorber more sensitive to the road surface reaction, and structural strength is high, and the bumper shock absorber before the relative ordinary inversion in low-speed going and high-speed going, the vibrations of the automobile body that alleviate that the homoenergetic is fine have strengthened the locomotive and have gone in the tire grab the land fertility, prevent to sideslip, provide the guarantee to the security, the travelling comfort of riding of high-low speed of two-wheeled motorcycle, electric motor car.
Description
Technical Field
The utility model relates to a bumper shock absorber technical field especially relates to a preceding bumper shock absorber is invertd to two regulation inflations of aluminum alloy.
Background
The shock absorber is a device formed by combining a hydraulic damper and a spring, and is used for inhibiting the shock when the spring rebounds after absorbing shock and the impact from the road surface so as to improve the driving smoothness (comfort) of the vehicle. The front shock absorber of the existing small-displacement motorcycle is generally of a three-cylinder type normal mounting structure, mainly comprises an aluminum cylinder, a front fork tube, a positioning tube and a shock absorption spring, and has the advantages of simple structure and low cost. The defects of large-displacement motorcycle engines such as high power, high speed, heavy vehicle bodies and a three-cylinder type normal mounting structure gradually appear, the three-cylinder type normal mounting structure only has fixed damping force at fixed speed and cannot adapt to the driving requirements of different roads and different load weights, and for higher driving speed, the shock absorber has delay on the shock absorption reaction of the road surface, so that the tire has insufficient ground holding force and is easy to have accidents.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the aluminum alloy double-adjustment inflatable inverted front shock absorber can eliminate shock absorption reaction delay.
In order to solve the technical problem, the utility model discloses a technical scheme be: an aluminum alloy double-regulation inflatable inverted front shock absorber comprises an aluminum cylinder assembly, a front fork tube assembly, a working cylinder assembly, a piston rod assembly, a flow valve assembly, a restoration regulating valve assembly, an inflation bottle assembly and a compression regulating valve assembly;
the aluminum cylinder assembly is provided with a first chamber along the axis;
one end of the front fork tube assembly extends into the first chamber from one end of the first chamber, and a first sealing element is arranged between the outer wall of the front fork tube assembly and the inner wall of the first chamber;
the front fork tube assembly is provided with a second chamber along the axis;
the reset adjusting valve assembly is arranged at the other end of the first chamber and is in interference fit with the inner wall of the first chamber;
one end of the working cylinder assembly extends into the second chamber from the other end of the front fork tube assembly;
one end of the piston rod assembly is connected with the reset regulating valve assembly, the other end of the piston rod assembly extends into the inner cavity of the working cylinder assembly, the flow-through valve assembly is arranged at the other end of the piston rod assembly, and the inner cavity of the working cylinder assembly is divided into a third chamber and a fourth chamber by the flow-through valve assembly;
one end of the working cylinder assembly is provided with a second sealing element in interference fit with the piston rod assembly;
the inner cavity of the inflation bottle assembly is divided into a fifth chamber and a sixth chamber through a piston separator, and the fifth chamber is communicated with the third chamber through the compression regulating valve assembly.
In optional embodiment, an aluminium section of thick bamboo subassembly includes aluminium bobbin case, first cavity sets up in the aluminium bobbin case, first sealing member includes the wear-resisting cover of oil jacket cover and first copper steel polytetrafluoroethylene, the inner wall of aluminium bobbin case is equipped with annular ladder groove, the wear-resisting cover of oil jacket cover and first copper steel polytetrafluoroethylene inlays to be established annular ladder inslot, the wear-resisting cover of oil jacket cover and first copper steel polytetrafluoroethylene all with preceding fork pipe assembly interference fit.
In an optional embodiment, the front fork assembly comprises a front fork shell and a second copper steel polytetrafluoroethylene wear-resistant sleeve, the second cavity is arranged in the front fork shell, an annular assembling groove is formed in the outer wall of the front fork shell, the second copper steel polytetrafluoroethylene wear-resistant sleeve is embedded in the annular assembling groove, and the second copper steel polytetrafluoroethylene wear-resistant sleeve is in interference fit with the aluminum cylinder assembly.
In an optional embodiment, the reset adjusting valve assembly comprises a reset valve fixing seat, a reset adjusting knob, a needle rod and a first spring, the reset valve fixing seat is in threaded fit with the inner wall of the first chamber, the reset valve fixing seat and the needle rod are both provided with inner threaded holes, the needle rod is in threaded fit with the inner threaded hole of the reset valve fixing seat, the reset adjusting knob is in threaded fit with the inner threaded hole of the needle rod, the needle rod abuts against the piston rod assembly, and the reset valve fixing seat is connected with the working cylinder assembly through the first spring.
In an optional embodiment, the piston rod assembly comprises an assembly rod, a piston rod core and a second spring, the flow valve assembly comprises a flow valve main body, the flow valve main body is provided with an oil hole, one end of the assembly rod is in threaded connection with the needle rod, the other end of the assembly rod abuts against the flow valve main body, the assembly rod is provided with a through hole for the piston rod core to pass through, one end of the piston rod core abuts against the reset adjusting knob through the second spring, and the other end of the piston rod core is used for plugging the oil hole.
In an alternative embodiment, the flow valve assembly further comprises a one-way piston sleeved on the flow valve body, the one-way piston is provided with a one-way passage from one end close to the reset adjusting valve assembly to the other end, and the third valve sheet assembly covers one side of the one-way passage far away from the reset adjusting valve assembly.
In an alternative embodiment, the cylinder assembly includes a cylinder housing, the third and fourth chambers are disposed within the cylinder housing, and the second seal includes a seal end cap that is threadedly engaged with one end of the cylinder housing, the seal end cap being in interference fit with the piston rod assembly.
In an optional embodiment, the inflation bottle assembly comprises an inflation bottle shell, the fifth chamber and the sixth chamber are arranged in the inflation bottle shell, the piston separator comprises a piston main body, an O-shaped sealing ring and a polytetrafluoroethylene belt, the piston main body is in clearance fit with the inner wall of the inflation bottle shell, a first sealing groove and a second sealing groove are respectively arranged on the piston main body, the O-shaped sealing ring and the polytetrafluoroethylene belt are sequentially and correspondingly arranged in the first sealing groove and the second sealing groove, and the O-shaped sealing ring and the polytetrafluoroethylene belt are in interference fit with the inner wall of the inflation bottle shell.
In an optional embodiment, the compression regulating valve assembly comprises a bidirectional piston, a first valve plate assembly and a second valve plate assembly, the bidirectional piston is provided with a first channel and a second channel which are arranged in a staggered mode and are parallel to each other, the first valve plate assembly is arranged on one side, close to the third chamber, of the first channel, and the second valve plate assembly is arranged on one side, close to the fifth chamber, of the second channel.
In an optional embodiment, the aluminum alloy double-adjustment inflatable inverted front shock absorber further comprises an aluminum seat, wherein a first mounting groove, a second mounting groove, a third mounting groove and a fourth mounting groove are formed in the aluminum seat, and the first mounting groove, the second mounting groove, the third mounting groove and the fourth mounting groove are sequentially and correspondingly provided with the front fork tube assembly, the working cylinder assembly, the inflation bottle assembly and the compression regulating valve assembly.
The beneficial effects of the utility model reside in that: the utility model provides a shock absorber before aluminium alloy double regulation inflatable inversion, including aluminium section of thick bamboo subassembly, preceding breeches pipe subassembly, working cylinder subassembly, piston rod subassembly, circulation valve subassembly, restore the regulating valve subassembly, aerify bottle subassembly and compression regulating valve subassembly, above-mentioned part forms six cavities with sealing member, separator assembly back, and first cavity, second cavity, third cavity, fourth cavity and fifth cavity intussuseption are filled with damping oil, and the sixth cavity is filled with nitrogen gas. During the bumper shock absorber compression, the third chamber is the high-pressure chamber, the fourth chamber, the fifth chamber, the sixth chamber is the low pressure chamber, third chamber and first chamber separate independently through the second sealing member, stretch into the third chamber when piston rod subassembly, and when the compression governing valve subassembly was opened, little part fluid in the third chamber gets into in the fifth chamber, adjust the size of compression damping force according to the aperture of compression governing valve subassembly, the nitrogen gas in the sixth chamber of fluid compression in the fifth chamber, for restoring the stroke ready fluid. While the majority of the oil in the third chamber passes through the flow valve assembly into the fourth chamber and fills it, ready for the regeneration stroke. The damping force can be controlled by adjusting the piston rod assembly through the reset adjusting valve assembly, so that the requirements of different vehicle types are met, and accurate adjustment is realized. In the recovery stroke, the fourth chamber and the sixth chamber are high-pressure chambers, the third chamber and the fifth chamber are low-pressure chambers, the piston rod rebounds, and oil entering the third chamber from the fourth chamber is not enough to supplement the volume of the third chamber, so that nitrogen in the sixth chamber pushes the piston separator, and the oil is compensated to the third chamber from the third chamber through the compression regulating valve assembly. The utility model provides a bumper shock absorber before aluminium alloy double regulation inflatable inversion makes preceding bumper shock absorber more sensitive to the road surface reaction, and structural strength is high, and the bumper shock absorber before the relative ordinary inversion in low-speed going and high-speed going, the vibrations of the automobile body that alleviate that the homoenergetic is fine have strengthened the locomotive and have gone in the tire grab the land fertility, prevent to sideslip, provide the guarantee to the security, the travelling comfort of riding of high-low speed of two-wheeled motorcycle, electric motor car.
Drawings
FIG. 1 is a schematic structural view of an aluminum alloy dual-adjustment inflatable inverted front damper according to an embodiment of the present invention;
FIG. 2 is a partial schematic view of an aluminum alloy dual tuned inflatable inverted front damper according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a flow-through valve assembly according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a piston rod assembly according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a reset modulating valve assembly according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a compression modulation valve assembly according to an embodiment of the present invention;
description of reference numerals:
1. an aluminum barrel assembly; 11. a first chamber; 12. a first seal member; 121. an oil seal cover; 122. a first copper steel polytetrafluoroethylene wear-resistant sleeve; 13. an aluminum barrel housing; 131. an annular stepped groove;
2. a front fork tube assembly; 21. a second chamber; 22. a front fork tube housing; 221. an annular assembly groove; 23. a second copper steel polytetrafluoroethylene wear-resistant sleeve;
3. a working cylinder assembly; 31. a third chamber; 32. a fourth chamber; 33. a second seal member; 331. sealing the end cap; 34. a cylinder housing;
4. a piston rod assembly; 41. assembling a rod; 42. a piston core bar; 43. a second spring;
5. a flow-through valve assembly; 51. a flow valve body; 52. a one-way piston; 521. a one-way channel; 53. a third disc assembly;
6. restoring the regulator valve assembly; 61. a restoring valve fixing seat; 62. a reset adjusting knob; 63. a needle bar; 64. a first spring;
7. an inflation bottle assembly; 71. a piston spacer; 711. a piston body; 712. an O-shaped sealing ring; 713. a polytetrafluoroethylene tape; 72. a fifth chamber; 73. a sixth chamber; 74. an inflation bottle housing;
8. a compression modulation valve assembly; 81. a bi-directional piston; 811. a first channel; 812. a second channel; 82. a first valve plate assembly; 83. a second valve plate assembly;
9. an aluminum seat.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 6, an aluminum alloy double-adjustment inflatable inverted front shock absorber comprises an aluminum cylinder assembly, a front fork tube assembly, a working cylinder assembly, a piston rod assembly, a flow valve assembly, a restoring adjusting valve assembly, an inflation cylinder assembly and a compression adjusting valve assembly;
the aluminum cylinder assembly is provided with a first chamber along the axis;
one end of the front fork tube assembly extends into the first chamber from one end of the first chamber, and a first sealing element is arranged between the outer wall of the front fork tube assembly and the inner wall of the first chamber;
the front fork tube assembly is provided with a second chamber along the axis;
the reset adjusting valve assembly is arranged at the other end of the first chamber and is in interference fit with the inner wall of the first chamber;
one end of the working cylinder assembly extends into the second chamber from the other end of the front fork tube assembly;
one end of the piston rod assembly is connected with the reset regulating valve assembly, the other end of the piston rod assembly extends into the inner cavity of the working cylinder assembly, the flow-through valve assembly is arranged at the other end of the piston rod assembly, and the inner cavity of the working cylinder assembly is divided into a third chamber and a fourth chamber by the flow-through valve assembly;
one end of the working cylinder assembly is provided with a second sealing element in interference fit with the piston rod assembly;
the inner cavity of the inflation bottle assembly is divided into a fifth chamber and a sixth chamber through a piston separator, and the fifth chamber is communicated with the third chamber through the compression regulating valve assembly.
From the above description, the beneficial effects of the present invention are: the utility model provides a shock absorber before aluminium alloy double regulation inflatable inversion, including aluminium section of thick bamboo subassembly, preceding breeches pipe subassembly, working cylinder subassembly, piston rod subassembly, circulation valve subassembly, restore the regulating valve subassembly, aerify bottle subassembly and compression regulating valve subassembly, above-mentioned part forms six cavities with sealing member, separator assembly back, and first cavity, second cavity, third cavity, fourth cavity and fifth cavity intussuseption are filled with damping oil, and the sixth cavity is filled with nitrogen gas. During the bumper shock absorber compression, the third chamber is the high-pressure chamber, the fourth chamber, the fifth chamber, the sixth chamber is the low pressure chamber, third chamber and first chamber separate independently through the second sealing member, stretch into the third chamber when piston rod subassembly, and when the compression governing valve subassembly was opened, little part fluid in the third chamber gets into in the fifth chamber, adjust the size of compression damping force according to the aperture of compression governing valve subassembly, the nitrogen gas in the sixth chamber of fluid compression in the fifth chamber, for restoring the stroke ready fluid. While the majority of the oil in the third chamber passes through the flow valve assembly into the fourth chamber and fills it, ready for the regeneration stroke. The damping force can be controlled by adjusting the piston rod assembly through the reset adjusting valve assembly, so that the requirements of different vehicle types are met, and accurate adjustment is realized. In the recovery stroke, the fourth chamber and the sixth chamber are high-pressure chambers, the third chamber and the fifth chamber are low-pressure chambers, the piston rod rebounds, and oil entering the third chamber from the fourth chamber is not enough to supplement the volume of the third chamber, so that nitrogen in the sixth chamber pushes the piston separator, and the oil is compensated to the third chamber from the third chamber through the compression regulating valve assembly. The utility model provides a bumper shock absorber before aluminium alloy double regulation inflatable inversion makes preceding bumper shock absorber more sensitive to the road surface reaction, and structural strength is high, and the bumper shock absorber before the relative ordinary inversion in low-speed going and high-speed going, the vibrations of the automobile body that alleviate that the homoenergetic is fine have strengthened the locomotive and have gone in the tire grab the land fertility, prevent to sideslip, provide the guarantee to the security, the travelling comfort of riding of high-low speed of two-wheeled motorcycle, electric motor car.
Further, aluminium section of thick bamboo subassembly includes aluminium bobbin case, first cavity sets up in the aluminium bobbin case, first sealing member includes the wear-resisting cover of oil seal cover and first copper steel polytetrafluoroethylene, the inner wall of aluminium bobbin case is equipped with annular ladder groove, the wear-resisting cover of oil seal cover and first copper steel polytetrafluoroethylene inlays to be established annular ladder inslot, oil seal cover and first copper steel polytetrafluoroethylene wear-resisting cover all with preceding fork pipe subassembly interference fit.
It can be known from the above-mentioned description that the ladder installation department of annular ladder groove is used for installing oil seal cover and the wear-resisting cover of first copper steel polytetrafluoroethylene, and oil seal cover and the wear-resisting cover of first copper steel polytetrafluoroethylene are used for improving the leakproofness of aluminium section of thick bamboo casing and preceding fork pipe subassembly.
Further, the front fork pipe assembly comprises a front fork pipe shell and a second copper steel polytetrafluoroethylene wear-resistant sleeve, the second cavity is arranged in the front fork pipe shell, the outer wall of the front fork pipe shell is provided with an annular assembling groove, the second copper steel polytetrafluoroethylene wear-resistant sleeve is embedded in the annular assembling groove, and the second copper steel polytetrafluoroethylene wear-resistant sleeve is in interference fit with the aluminum cylinder assembly.
As can be seen from the above description, the front fork tube shell is provided with the annular assembly groove, and the second copper steel polytetrafluoroethylene wear-resistant sleeve is embedded in the annular assembly groove to ensure the sealing performance of the front fork tube assembly and the aluminum cylinder assembly.
Further, the reset adjusting valve assembly comprises a reset valve fixing seat, a reset adjusting knob, a needle rod and a first spring, the reset valve fixing seat is in threaded fit with the inner wall of the first cavity, inner threaded holes are formed in the reset valve fixing seat and the needle rod, the needle rod is in threaded fit with the inner threaded holes of the reset valve fixing seat, the reset adjusting knob is in threaded fit with the inner threaded holes of the needle rod, the needle rod abuts against the piston rod assembly, and the reset valve fixing seat is connected with the working cylinder assembly through the first spring.
As can be seen from the above description, the needle bar is respectively in threaded fit with the restoration adjusting knob and the restoration valve fixing seat, and the needle bar can be adjusted to stretch by rotating the restoration adjusting knob, so that the piston rod assembly is moved by pushing, and the first spring plays a role in supporting and resetting.
Furthermore, the piston rod assembly comprises an assembly rod, a piston core rod and a second spring, the circulation valve assembly comprises a circulation valve main body, an oil hole is formed in the circulation valve main body, one end of the assembly rod is in threaded connection with the needle rod, the other end of the assembly rod abuts against the circulation valve main body, a through hole for the piston core rod to penetrate through is formed in the assembly rod, one end of the piston core rod abuts against the restoration adjusting knob through the second spring, and the other end of the piston core rod is used for plugging the oil hole.
As can be seen from the above description, the assembly rod is used to connect with the needle rod of the reset adjusting valve assembly, and the piston core rod always abuts against the reset adjusting knob to block the oil hole on the main body of the flow valve.
Furthermore, the circulation valve assembly further comprises a one-way piston and a third valve plate assembly, the one-way piston is sleeved on the circulation valve main body, a one-way passage is arranged from one end, close to the reset adjusting valve assembly, of the one-way piston to the other end of the one-way piston, and the third valve plate assembly is covered on one side, far away from the reset adjusting valve assembly, of the one-way passage.
According to the description, the one-way piston achieves the one-way sealing function through the valve plate assembly, and the valve plate assembly can be adjusted to generate different damping forces to achieve accurate adjustment according to the damping requirements of different vehicle types.
Further, the working cylinder assembly comprises a working cylinder shell, the third cavity and the fourth cavity are arranged in the working cylinder shell, the second sealing element comprises a sealing end cover, the sealing end cover is in threaded fit with one end of the working cylinder shell, and the sealing end cover is in interference fit with the piston rod assembly.
As can be seen from the above description, the end caps are used to achieve an interference fit between the cylinder housing and the piston rod assembly.
Further, the inflation bottle subassembly includes the inflation bottle casing, fifth cavity and sixth cavity set up in the inflation bottle casing, the piston separator includes piston main part, O type sealing washer and polytetrafluoroethylene area, the piston main part with the inner wall clearance fit of inflation bottle casing, be equipped with first seal groove and second seal groove in the piston main part respectively, O type sealing washer and polytetrafluoroethylene area correspond the setting in proper order in first seal groove and the second seal groove, O type sealing washer and polytetrafluoroethylene area all with the inner wall interference fit of inflation bottle casing.
As can be seen from the above description, the design can reduce the friction between the components and prolong the service life of the components while ensuring the oil and gas isolation.
Furthermore, the compression regulating valve assembly comprises a two-way piston, a first valve plate assembly and a second valve plate assembly, the two-way piston is provided with a first channel and a second channel which are arranged in a staggered mode and are parallel to each other, the first valve plate assembly is arranged on one side, close to the third cavity, of the first channel, and the second valve plate assembly is arranged on one side, close to the fifth cavity, of the second channel.
According to the description, the first channel and the second channel are respectively matched with the first valve plate assembly and the second valve plate assembly correspondingly, and the function of two-way conduction of the piston two channels can be realized.
Further, the aluminum alloy double-adjustment inflatable type inverted front shock absorber further comprises an aluminum seat, a first mounting groove, a second mounting groove, a third mounting groove and a fourth mounting groove are formed in the aluminum seat, and the first mounting groove, the second mounting groove, the third mounting groove and the fourth mounting groove are sequentially and correspondingly mounted on the front fork pipe assembly, the working cylinder assembly, the inflation bottle assembly and the compression regulating valve assembly.
According to the description, the installation groove for assembly is formed in the aluminum seat, so that the parts can be fixedly installed, the shock absorber structure can be conveniently installed on the premise that other accessories and structures of the locomotive are not changed, and various parameters of the shock absorber can be conveniently and quickly adjusted.
Referring to fig. 1 to 6, a first embodiment of the present invention is:
an aluminum alloy double-regulation inflatable inverted front shock absorber comprises an aluminum cylinder assembly 1, a front fork tube assembly 2, a working cylinder assembly 3, a piston rod assembly 4, a circulation valve assembly 5, a restoration regulating valve assembly 6, an inflation bottle assembly 7 and a compression regulating valve assembly 8;
the aluminum cylinder assembly 1 is provided with a first chamber 11 along the axis;
one end of the front fork tube assembly 2 extends into the first chamber 11 from one end of the first chamber 11, and a first sealing element 12 is arranged between the outer wall of the front fork tube assembly 2 and the inner wall of the first chamber 11;
the front fork tube assembly 2 is provided with a second chamber 21 along the axis;
the reset regulating valve assembly 6 is arranged at the other end of the first chamber 11, and the reset regulating valve assembly 6 is in interference fit with the inner wall of the first chamber 11;
one end of the working cylinder assembly 3 extends into the second chamber 21 from the other end of the front fork tube assembly 2;
one end of the piston rod assembly 4 is connected with the reset regulating valve assembly 6, the other end of the piston rod assembly 4 extends into the inner cavity of the working cylinder assembly 3, the flow valve assembly 5 is arranged at the other end of the piston rod assembly 4, and the inner cavity of the working cylinder assembly 3 is divided into a third chamber 31 and a fourth chamber 32 by the flow valve assembly 5;
one end of the working cylinder assembly 3 is provided with a second sealing element 33 which is in interference fit with the piston rod assembly 4;
the inner cavity of the air cylinder assembly 7 is divided into a fifth chamber 72 and a sixth chamber 73 by a piston partition 71, and the fifth chamber 72 is communicated with the third chamber 31 through the compression regulating valve assembly 8.
Referring to fig. 1 to 6, a second embodiment of the present invention is:
Referring to fig. 1 to 6, a third embodiment of the present invention is:
the compression regulating valve component 8 and the restoration regulating valve component 6 respectively comprise a fixed seat, a gear regulating core, a spring, a positioning ball and a thimble; the fixing base is equipped with the pilot hole, the core is adjusted to the gear accept in the pilot hole, the outer wall of core is adjusted to the gear is along the perpendicular to the direction of the axis of pilot hole is equipped with the mounting hole, the spring accept in the mounting hole, the one end of spring is supported and is leaned on the inner wall of mounting hole, the other end of spring is supported and is leaned on the location pearl, the inner wall of pilot hole is equipped with more than two sets of confessions along the circumferencial direction the gear groove of location pearl embedding, the one end of thimble stretches into in the pilot hole, the one end of thimble respectively with fixing base and gear are adjusted core threaded. The pilot hole is the shoulder hole, the one end of core is adjusted to the gear certainly the one end of shoulder hole is packed into in the shoulder hole, the middle part of core is adjusted to the gear be equipped with the annular assembly bench of shoulder hole joint. The gear groove is parallel to the axis of the assembly hole. The four groups of gear grooves are uniformly distributed along the circumferential direction of the assembling hole. The one end of core is adjusted to the gear is equipped with the annular seal groove, the annular seal groove is embedded to have ring type seal, ring type seal with pilot hole interference fit. The thimble includes screw thread mount pad and needle bar, the other end of shoulder hole is equipped with first assembly internal thread, the outer wall of the one end of screw thread mount pad be equipped with the first assembly external screw thread of first assembly internal thread complex, the screw thread mount pad certainly the one end of screw thread mount pad is equipped with the assembly screw to the other end, the other end of gear adjusting core be equipped with assembly screw complex second assembly external screw thread, the one end of needle bar be equipped with assembly screw complex third assembly external screw thread.
To sum up, the utility model provides a bumper shock absorber before two regulation inflatable of aluminum alloy are invertd, including aluminium section of thick bamboo subassembly, preceding breeches pipe subassembly, working cylinder subassembly, piston rod subassembly, circulation valve subassembly, recover regulating valve subassembly, gas cylinder subassembly and compression regulating valve subassembly, above-mentioned part forms six cavities with sealing member, separator assembly back, and first cavity, second cavity, third cavity, fourth cavity and fifth cavity intussuseption are filled with damping oil, and the sixth cavity intussuseption is filled with nitrogen gas. During the bumper shock absorber compression, the third chamber is the high-pressure chamber, the fourth chamber, the fifth chamber, the sixth chamber is the low pressure chamber, third chamber and first chamber separate independently through the second sealing member, stretch into the third chamber when piston rod subassembly, and when the compression governing valve subassembly was opened, little part fluid in the third chamber gets into in the fifth chamber, adjust the size of compression damping force according to the aperture of compression governing valve subassembly, the nitrogen gas in the sixth chamber of fluid compression in the fifth chamber, for restoring the stroke ready fluid. While the majority of the oil in the third chamber passes through the flow valve assembly into the fourth chamber and fills it, ready for the regeneration stroke. The damping force can be controlled by adjusting the piston rod assembly through the reset adjusting valve assembly, so that the requirements of different vehicle types are met, and accurate adjustment is realized. In the recovery stroke, the fourth chamber and the sixth chamber are high-pressure chambers, the third chamber and the fifth chamber are low-pressure chambers, the piston rod rebounds, and oil entering the third chamber from the fourth chamber is not enough to supplement the volume of the third chamber, so that nitrogen in the sixth chamber pushes the piston separator, and the oil is compensated to the third chamber from the third chamber through the compression regulating valve assembly. The utility model provides a bumper shock absorber before aluminium alloy double regulation inflatable inversion makes preceding bumper shock absorber more sensitive to the road surface reaction, and structural strength is high, and the bumper shock absorber before the relative ordinary inversion in low-speed going and high-speed going, the vibrations of the automobile body that alleviate that the homoenergetic is fine have strengthened the locomotive and have gone in the tire grab the land fertility, prevent to sideslip, provide the guarantee to the security, the travelling comfort of riding of high-low speed of two-wheeled motorcycle, electric motor car.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (10)
1. An aluminum alloy double-regulation inflatable inverted front shock absorber is characterized by comprising an aluminum cylinder assembly, a front fork tube assembly, a working cylinder assembly, a piston rod assembly, a flow valve assembly, a restoration regulating valve assembly, an inflation bottle assembly and a compression regulating valve assembly;
the aluminum cylinder assembly is provided with a first chamber along the axis;
one end of the front fork tube assembly extends into the first chamber from one end of the first chamber, and a first sealing element is arranged between the outer wall of the front fork tube assembly and the inner wall of the first chamber;
the front fork tube assembly is provided with a second chamber along the axis;
the reset adjusting valve assembly is arranged at the other end of the first chamber and is in interference fit with the inner wall of the first chamber;
one end of the working cylinder assembly extends into the second chamber from the other end of the front fork tube assembly;
one end of the piston rod assembly is connected with the reset regulating valve assembly, the other end of the piston rod assembly extends into the inner cavity of the working cylinder assembly, the flow-through valve assembly is arranged at the other end of the piston rod assembly, and the inner cavity of the working cylinder assembly is divided into a third chamber and a fourth chamber by the flow-through valve assembly;
one end of the working cylinder assembly is provided with a second sealing element in interference fit with the piston rod assembly;
the inner cavity of the inflation bottle assembly is divided into a fifth chamber and a sixth chamber through a piston separator, and the fifth chamber is communicated with the third chamber through the compression regulating valve assembly.
2. The aluminum alloy double-adjustment inflatable inverted front shock absorber of claim 1, wherein the aluminum cylinder assembly comprises an aluminum cylinder shell, the first chamber is disposed in the aluminum cylinder shell, the first sealing element comprises an oil seal sleeve and a first copper steel polytetrafluoroethylene wear-resistant sleeve, an annular stepped groove is formed in the inner wall of the aluminum cylinder shell, the oil seal sleeve and the first copper steel polytetrafluoroethylene wear-resistant sleeve are embedded in the annular stepped groove, and the oil seal sleeve and the first copper steel polytetrafluoroethylene wear-resistant sleeve are in interference fit with the front fork assembly.
3. The aluminum alloy dual-adjustment inflatable inverted front shock absorber according to claim 1, wherein the front fork assembly comprises a front fork housing and a second copper-steel polytetrafluoroethylene wear-resistant sleeve, the second chamber is arranged in the front fork housing, an annular assembling groove is formed in the outer wall of the front fork housing, the second copper-steel polytetrafluoroethylene wear-resistant sleeve is embedded in the annular assembling groove, and the second copper-steel polytetrafluoroethylene wear-resistant sleeve is in interference fit with the aluminum cylinder assembly.
4. The aluminum alloy double-adjustment inflatable inverted front shock absorber of claim 1, wherein the reset adjusting valve assembly comprises a reset valve fixing seat, a reset adjusting knob, a needle rod and a first spring, the reset valve fixing seat is in threaded fit with the inner wall of the first chamber, both the reset valve fixing seat and the needle rod are provided with inner screw holes, the needle rod is in threaded fit with the inner screw hole of the reset valve fixing seat, the reset adjusting knob is in threaded fit with the inner screw hole of the needle rod, the needle rod abuts against the piston rod assembly, and the reset valve fixing seat is connected with the working cylinder assembly through the first spring.
5. The aluminum alloy double-adjustment inflatable inverted front shock absorber according to claim 4, wherein the piston rod assembly comprises an assembly rod, a piston core rod and a second spring, the flow valve assembly comprises a flow valve body, an oil hole is formed in the flow valve body, one end of the assembly rod is in threaded connection with the needle rod, the other end of the assembly rod abuts against the flow valve body, a through hole for the piston core rod to pass through is formed in the assembly rod, one end of the piston core rod abuts against the restoration adjusting knob through the second spring, and the other end of the piston core rod is used for blocking the oil hole.
6. The aluminum alloy dual tuned inflatable inverted front shock absorber of claim 5, wherein said flow-through valve assembly further comprises a one-way piston sleeved on said flow-through valve body and having a one-way passage from one end near said rebound regulator assembly to the other end, and a third disc assembly covering a side of said one-way passage away from said rebound regulator assembly.
7. The aluminum alloy dual tuned pneumatic inverted front shock absorber according to claim 1, wherein said cylinder assembly comprises a cylinder housing, said third and fourth chambers are disposed within said cylinder housing, and said second seal comprises a cap seal threadably engaged with an end of said cylinder housing, said cap seal being in interference fit with said piston rod assembly.
8. The aluminum alloy double-adjustment inflatable inverted front shock absorber according to claim 1, wherein the inflatable bottle assembly comprises an inflatable bottle shell, the fifth chamber and the sixth chamber are arranged in the inflatable bottle shell, the piston separator comprises a piston main body, an O-shaped sealing ring and a polytetrafluoroethylene belt, the piston main body is in clearance fit with the inner wall of the inflatable bottle shell, the piston main body is provided with a first sealing groove and a second sealing groove respectively, the O-shaped sealing ring and the polytetrafluoroethylene belt are sequentially and correspondingly arranged in the first sealing groove and the second sealing groove, and the O-shaped sealing ring and the polytetrafluoroethylene belt are in interference fit with the inner wall of the inflatable bottle shell.
9. The aluminum alloy double-regulation inflatable inverted front shock absorber of claim 1, wherein the compression regulation valve assembly comprises a bidirectional piston, a first valve plate assembly and a second valve plate assembly, the bidirectional piston is provided with a first channel and a second channel which are arranged in a staggered mode and are parallel to each other, the first valve plate assembly is arranged on one side, close to the third chamber, of the first channel, and the second valve plate assembly is arranged on one side, close to the fifth chamber, of the second channel.
10. The aluminum alloy dual tuned inflatable inverted front shock absorber according to claim 1, further comprising an aluminum seat, wherein said aluminum seat is provided with a first mounting groove, a second mounting groove, a third mounting groove and a fourth mounting groove, and said first mounting groove, said second mounting groove, said third mounting groove and said fourth mounting groove are sequentially provided with said front fork assembly, said cylinder assembly, said inflator assembly and said compression adjustment valve assembly.
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| CN112032238A (en) * | 2020-09-24 | 2020-12-04 | 福建金汉科技有限公司 | Aluminum alloy double-adjustment inflatable inverted front shock absorber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112032238A (en) * | 2020-09-24 | 2020-12-04 | 福建金汉科技有限公司 | Aluminum alloy double-adjustment inflatable inverted front shock absorber |
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