CN114683981A - Agricultural vehicle buffering damping seat suspension - Google Patents
Agricultural vehicle buffering damping seat suspension Download PDFInfo
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- CN114683981A CN114683981A CN202210536673.3A CN202210536673A CN114683981A CN 114683981 A CN114683981 A CN 114683981A CN 202210536673 A CN202210536673 A CN 202210536673A CN 114683981 A CN114683981 A CN 114683981A
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- platform
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- slide
- agricultural vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/50—Seat suspension devices
- B60N2/54—Seat suspension devices using mechanical springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/50—Seat suspension devices
- B60N2/54—Seat suspension devices using mechanical springs
- B60N2/544—Compression or tension springs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model provides an agricultural vehicle buffering damping seat suspension, includes the base platform, accept the platform and install on the base platform through first coil spring and the elastic support subassembly that is located first coil spring both sides, accept to be equipped with spacing slide and buffering slide on the platform, wherein spacing slide sets up at the up end of accepting the platform, accepts platform both sides face and be the arc concave surface, and the buffering slide sets up on the arc concave surface, still installs the seat face platform on accepting the platform, seat face platform both ends symmetry is equipped with protruding connecting portion, its bottom surface be equipped with spacing slide complex slider be equipped with first buffering damping subassembly on the protruding connecting portion, its include with the buffering slide constitutes rolling contact's pulley and is used for adjusting the pressure adjustment unit of pulley and buffering slide face pressure. This scheme can be good to vertical and vertical direction's buffering damping effect, improves the ride comfort and the driver travelling comfort that the vehicle went, more accords with the requirement of modern agricultural vehicle seat buffering damping.
Description
Technical Field
The invention relates to the technical field of agricultural vehicle seats, in particular to a buffering and damping seat suspension for an agricultural vehicle.
Background
The road conditions of rural highways are complex and generally poor, and agricultural vehicles operate in the environment of non-standard road surfaces, so that the body of a driver is injured. Impact on the body of the driver: there are both vertical strong jolts and longitudinal and transverse general vibrations, of which the vertical vibrations have the greatest influence on the driver among these impact vibrations from the road surface. The effect of vibration on the driver is mainly twofold: firstly, when vibration reaches a certain degree, the human body can be tired, and the visual sense, the response speed and the operation action agility are reduced. Secondly, the strong vibration of the whole body can cause damage to the organs of the human body, such as the kidney, the stomach, the spine, the lumbar and the like. Therefore, in the research and development process of agricultural vehicles, how to effectively reduce the transmission of the vibration of the vehicle body to the driver becomes one of important research contents.
The medium with which agricultural vehicles and people come into contact is a seat. The suspension is used as a connecting part between the seat and the vehicle body, and the vibration received by the seat and a driver needs to be transmitted through the seat suspension. Therefore, it is one of the important ways to achieve seat vibration reduction by improving the seat suspension structure, enhancing the vibration reduction effect, and improving the riding comfort and the driving smoothness.
In the prior art, patent No. CN109204082A proposes a spring vibration damping seat for an agricultural vehicle seat, in which an air spring is disposed at the bottom of the seat, a support plate is disposed at the bottom of the air spring, and a composite spring is disposed at the bottom of the support plate to achieve the effect of vibration damping and improve the comfort of the seat. Patent No. CN205273233U provides an agricultural vehicle damping seat, sets up shock absorber and two steel spring under the seat base, realizes the seat suspension of two steel spring and shock absorber with adjustable damping coefficient that rigidity is adjustable, guarantees the buffering damping effect of vehicle under multiple operating mode. The air springs and the shock absorbers are arranged at the bottom of the seat, so that the air springs and the shock absorbers are prone to failure under severe working conditions, short in service life and difficult to maintain. The invention provides an agricultural vehicle buffer vibration damping seat suspension, which adopts a mechanical seat suspension to realize the buffer vibration damping function, has simple structure, long service life, easy maintenance and good buffer vibration damping effect on the longitudinal direction and the vertical direction, improves the smoothness of vehicle running and the comfort of a driver and better meets the requirement of the buffer vibration damping of the modern agricultural vehicle seat.
Disclosure of Invention
In order to solve the technical problem, the invention provides the agricultural vehicle buffer vibration damping seat suspension, and the scheme has good buffer vibration damping effect in the longitudinal direction and the vertical direction by optimizing the structure of the vibration damping seat suspension, improves the running smoothness of a vehicle and the comfort of a driver, and better meets the requirement of the modern agricultural vehicle seat buffer vibration damping.
The technical scheme adopted by the invention is as follows: a buffering and damping seat suspension for agricultural vehicles comprises a base platform and a bearing platform, wherein the bearing platform is arranged on the base platform through a first spiral spring and elastic support assemblies positioned at two sides of the first spiral spring, a limiting slide way and a buffering slide way are arranged on the bearing platform, wherein the limiting slide way is arranged on the upper end surface of the bearing platform, the two side surfaces of the bearing platform are arc concave surfaces, the buffering slide way is arranged on the arc concave surfaces, a seat surface platform is also arranged on the bearing platform, the two ends of the seat surface platform are symmetrically provided with convex connecting parts, the bottom surface of the sliding block is provided with a sliding block matched with the limiting slide way, the convex connecting part is provided with a first buffering vibration attenuation component, the first buffering vibration attenuation assembly comprises a pulley which is in rolling contact with the buffering slide way and a pressure adjusting unit which is used for adjusting the surface pressure of the pulley and the buffering slide way.
As preferred scheme, every one end of seat face platform all is equipped with two protruding connecting portion, and two protruding connecting portion interval certain distances all are equipped with first buffering damping subassembly on each protruding connecting portion.
As preferred scheme, first buffering damping subassembly include adjusting bolt, adjusting spring, connecting rod and pulley, adjusting bolt installs in the threaded hole of protruding connecting portion, the boss contact of adjusting spring one end and connecting rod one end, the other end and adjusting bolt contact, the connecting rod constitutes to rotate through third round pin axle and pulley and is connected, the pulley contacts with buffering slideway face.
Preferably, the number of the first spiral springs is even, and the first spiral springs are respectively installed between the bearing platform and the base platform through spring fixing holes in the bearing platform and the base platform.
Preferably, the two groups of elastic support assemblies are arranged and symmetrically distributed on two sides of the bearing platform by taking the limiting slide ways as a reference.
As the preferred scheme, the elastic support component comprises two supporting rods which are arranged in a crossed mode, wherein the upper ends of the supporting rods are rotatably connected with the bearing platform through second hinge pins, and the lower ends of the supporting rods are installed in the foot seats on the base platform through second buffering vibration attenuation components.
As the preferred scheme, the elastic support assembly comprises a first support rod and a second support rod, a fourth pin shaft is installed on the first support rod, the second support rod is provided with a limiting slide rail and a through groove, the first support rod and the second support rod are arranged in a crossed mode through the through groove, the first support rod is in sliding fit in the limiting slide rail of the second support rod through a fourth pin shaft on the first support rod, and the fourth pin shaft can slide along the limiting slide rail.
As the preferred scheme, first bracing piece and second bracing piece be the arc pole.
As the preferred scheme, the foot seats on the base platform are four and are symmetrically arranged at four corners of the base platform in pairs, wherein each foot seat is provided with three side faces, the two symmetrical side faces are provided with limiting holes, the other side face is provided with a limiting round hole, and a second buffering vibration attenuation assembly connected with the end part of the supporting rod is arranged in each foot seat.
As preferred scheme, second buffering damping subassembly constitute by connecting axle and second coil spring, second coil spring overlaps on the connecting axle, second coil spring one end contacts with the one end boss of connecting axle, and the other end contacts with the foot rest side, and the connecting axle rotates through first round pin axle with elastic support subassembly to be connected, first round pin axle is installed in spacing downtheholely, the one end of connecting axle passes spacing round hole and guarantees the direction of motion through spacing round hole, first round pin axle moves in the spacing downthehole motion in both sides simultaneously.
The invention has the beneficial effects that:
this scheme provides an agricultural vehicle buffering damping seat suspension through the structural design of innovation, adopts mechanical type buffering damping seat suspension to realize the damping, and simple structure is effectual to the damping of vertical and vertical direction, improves the ride comfort and the driver travelling comfort that the vehicle went, and the practicality is strong, more accords with the requirement of modern agricultural vehicle buffering damping.
In the present invention, for the seat suspension, the longitudinal direction of the seat is defined as the front-rear direction, the lateral direction is defined as the left-right direction, and the vertical direction is defined as the up-down direction; when an agricultural vehicle is operated in a non-standard road environment, the vehicle is subjected to vibrations from both the longitudinal and vertical directions. When longitudinal vibration occurs, the seat platform is caused to move relative to the receiving platform. If the seat face platform removes backward for accepting the platform when beginning, the pulley that is located the rear can rise along the buffering slide, buffering slide can give a resistance of pulley, the pulley passes through the bearing and connects at third round pin epaxially, third round pin axle is connected with the connecting rod, give a resistance of seat face platform promptly, slow down the vibration, simultaneously the connecting rod can compress adjusting spring because the rising of the buffering slide of edge of pulley, adjusting spring is compressed, absorb vibration energy, reduce the vibration intensity, under compression adjusting spring's effect, through the connecting rod, third round pin axle, the bearing is used a downward effort of the buffering slide of edge of pulley, increase the resistance that the pulley rises along the buffering slide. When the pulley moves to the highest position of the buffering slideway, under the action of the compression adjusting spring, acting on the pulley through the connecting rod, the third pin shaft and the bearing, acting on an acting force which is downward along the buffering slideway, the pulley moves downward, namely the seat surface platform moves forward relative to the bearing platform, and the pulley repeatedly moves until the vibration disappears.
If the seat surface platform initially moves forward relative to the receiving platform, the cushioning and damping principles are the same as if the seat surface platform initially moves forward relative to the receiving platform. In addition, the pre-acting force of the spiral spring can be controlled through the adjusting bolt so as to adapt to different working environments. Therefore, the seat suspension provided by the invention has good buffer and vibration reduction effects in the longitudinal direction.
When the vibration in the vertical direction occurs, the distance between the bearing platform and the base platform is shortened, and the two first spiral springs between the bearing platform and the base platform are compressed to absorb vibration energy and reduce vibration intensity. Meanwhile, the elastic support component can be pressed downwards, the fourth pin shaft moves downwards along the sliding rail, the supporting rod can also slide downwards in the through groove, vibration can be converted into longitudinal vibration through the elastic support component, the longitudinal vibration is transmitted to the second buffering vibration attenuation component located in the foot base through the first pin shaft, the supporting rod is connected with the connecting shaft through the first pin shaft, the elastic support component pushes the connecting shaft to compress the second spiral spring to move, the second spiral spring is compressed to absorb vibration energy, and the vibration intensity is reduced. When the distance between the bearing platform and the base platform is shortest, under the combined action of the first spiral spring between the bearing platform and the base platform and the second spiral spring at the foot seat, the distance between the bearing platform and the base platform is increased and gradually recovered, the support frame is restored, and the bearing platform and the base platform move repeatedly until the vibration disappears. In addition, the connecting shaft guarantees the moving direction through the limiting round holes, and meanwhile, the first pin shaft moves along the limiting holes in the two sides, so that the second spiral spring is prevented from being damaged when the vibration is too strong. Therefore, the seat suspension provided by the invention has good buffering and vibration damping effects in the vertical direction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the present invention;
fig. 2 is a schematic perspective view of a seat platform;
FIG. 3 is a schematic structural view of the receiving platform;
FIG. 4 is a schematic bottom structure view of the receiving platform;
FIG. 5 is a schematic view of an assembly structure of a pulley in the first cushion and damping assembly;
FIG. 6 is an assembly structure view of a second cushion and vibration damping assembly connecting shaft;
FIG. 7 is a schematic view of a base platform;
FIG. 8 is a schematic view of an assembly structure of an adjusting spring in the first cushion damper assembly;
FIG. 9 is a schematic structural view of one embodiment of a resilient mount assembly.
The labels in the figure are: 1. a first pin shaft; 2. a base platform; 3. a support bar; 301. a first support bar; 302. a second support bar; 4. a foot seat; 5. a resilient support assembly; 6. adjusting the bolt; 7. a receiving platform; 8. a limiting slide way; 9. a seat deck platform; 10. a connecting seat; 11. a second pin shaft; 12. a first coil spring; 13. a threaded hole; 14. a slider; 15. a buffer slide way; 16. a first spring holder; 17. a third pin shaft; 18. a connecting rod; 19. a pulley; 20. a second coil spring; 21. a second spring fixing seat; 22. a connecting shaft; 23. limiting round holes; 24. a limiting hole; 25. adjusting the spring; 26. a limiting slide rail; 27. a through groove; 28. and a fourth pin shaft.
Detailed Description
The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
It should be noted that: unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" and "an" or "the" and similar referents in the description and claims of the present invention are not to be construed as limiting in number, but rather as indicating the presence of at least one. The word "comprise" or "comprises", and the like, indicates that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, but does not exclude other elements or items having the same function.
Examples 1,
The detailed structure of the present embodiment is described below with reference to fig. 1 to 9:
in the present invention, for the seat suspension, the longitudinal direction of the seat is defined as the front-rear direction, the lateral direction is defined as the left-right direction, and the vertical direction is defined as the up-down direction; as shown in the figure, the buffering and damping seat suspension for the agricultural vehicle comprises a seat suspension body, wherein the seat suspension body mainly comprises a base platform 2, an elastic support component 5, a bearing platform 7 and a seat surface platform 9, the bearing platform 7 is arranged on the base platform 2 through a first spiral spring 12 and elastic bracket assemblies 5 positioned at two sides of the first spiral spring, a limiting slide way 8 and a buffering slide way 15 are arranged on the bearing platform, wherein the limiting slide way 8 is arranged on the upper end surface of the bearing platform 7, the two side surfaces of the bearing platform 7 are arc concave surfaces, the buffering slide way 15 is arranged on the arc concave surfaces, the seat surface platform 9 is arranged on the bearing platform 7, the two ends of the seat surface platform 9 are symmetrically provided with convex connecting parts, the bottom surface of the sliding block is provided with a sliding block 14 matched with the limiting slide way, and the convex connecting part is provided with a first buffering vibration attenuation component;
in this embodiment, the elastic support assembly 5 is composed of two supporting rods 3 arranged in a crossed manner, wherein the upper ends of the supporting rods 3 are rotatably connected with the bearing platform 7 through second hinge pins, and the lower ends of the supporting rods 3 are mounted in the foot seats on the base platform 2 through second buffering vibration attenuation assemblies. The second buffering vibration damping assembly comprises a connecting shaft 22, a second spiral spring 20; the foot seat 4 is rotatably connected with one end of the elastic support assembly 5 through a first pin shaft 1, the other end of the elastic support assembly 5 is rotatably connected with a connecting seat 10 on the bearing platform 7 through a second pin shaft 11, a first spiral spring 12 is connected between the base platform 2 and the bearing platform 7, and in order to ensure the balance of the seat suspension, the even number of the first spiral springs 12 is preferably considered;
it should be noted that: the elastic support assemblies 5 are provided with two groups, and are symmetrically arranged on two sides of the connecting line of the two first spiral springs 12 respectively, each group of elastic support assemblies 5 is composed of two support rods 3 which are arranged in a crossed manner, wherein one support rod 3 is inserted into a through groove on the other support rod and is slidably mounted in a limit slide rail 26 of the other support rod through a fourth pin shaft 8 on the support rod, and in the embodiment, as shown in fig. 9, each elastic support assembly 5 is composed of two arc-shaped first support rods 301 and two arc-shaped second support rods 302; a through hole for mounting the fourth pin shaft 28 is formed in the first support rod 301, and the fourth pin shaft 28 is in interference fit with the first support rod 301 provided with the through hole; the second support bar 302 is provided with a limit slide rail 26 and a through groove 27, the first support bar 301 and the second support bar 302 are arranged in a crossed manner through the through groove 27, the first support bar 301 is in sliding fit in the limit slide rail 26 of the second support bar 302 through a fourth pin shaft 28 thereon, and the fourth pin shaft 28 can slide along the limit slide rail 26.
In the scheme, the support rod 3 adopts a curvilinearized design, so that vibration decomposition in the vertical direction is realized, and the conversion from vertical vibration to longitudinal vibration is realized; furthermore, the joint of the two support rods 3 of the spring support assembly 5 is dynamically designed such that the joint is movable relative to the support rods 3 when the seat suspension is subjected to vertical vibrations.
In this embodiment, the supporting platform 7, wherein the limiting slide way 8 is disposed on the upper end surface of the supporting platform 7 and disposed along the length direction of the supporting platform 7, the two side surfaces of the supporting platform 7 are provided with the buffering slide ways 15, the buffering slide ways 15 are symmetrically disposed, the buffering slide ways 15 are designed to be curved surfaces, when the supporting platform receives longitudinal vibration, the buffering slide ways 15 provide resistance, the limiting slide ways 8 are connected to the sliding blocks 14 on the seat surface platform 9, the buffering slide ways 15 are connected to the seat surface platform 9 through the first buffering vibration reduction assembly, the first buffering vibration reduction assembly includes the adjusting spring 25, the connecting rod 18, the pulley 19, the bearing, the third pin 17 and the adjusting bolt 6, and the first buffering vibration reduction assembly is composed of four same parts, and is symmetrically disposed. The structure of the longitudinal damping device will be described in detail with reference to fig. 2, 3, 5 and 8, wherein four threaded holes 13 are formed on two sides of the seat platform 9, and the longitudinal damping device is designed in the threaded holes 13 and comprises an adjusting spring 25, a connecting rod 18, a pulley 19, a bearing, a third pin 17 and an adjusting bolt 6. Install adjusting bolt 6 in proper order in screw hole 13, adjusting spring 25, connecting rod 18, adjusting spring 25's one end and the contact of 18 one end bosss of connecting rod, adjusting spring 25 other end and adjusting bolt 6 contact, adjusting bolt 6 bottom design has the adjusting spring fixing base, wherein the connecting rod constitutes to rotate through third round pin axle 17 and pulley 19 and is connected, buffering slide 15 and the contact of pulley 19, can control coil spring 25's pre-action power through adjusting bolt 6 to adapt to different operational environment.
It should be noted that: pulley 19 in this first buffering damping subassembly all is in the concave bottom of buffering slide 15 at the beginning, no matter seat face platform 9 is for accepting platform 7 forward or backward motion, in seat face platform 9 removal in-process, all make pulley 19 rise along the arc curved surface of buffering slide 15, at this moment, buffering slide 15 can give pulley 19 a resistance, pulley 19 passes through the bearing and connects on third round pin axle 17, third round pin axle 17 is connected with connecting rod 18, give seat face platform 9 a resistance promptly, slow down the vibration, connecting rod 18 can compress adjusting spring 25 owing to the rising of pulley 19 along buffering slide 15 simultaneously, adjusting spring 25 is compressed, absorb the vibration energy, thereby reduce the vibration strength.
In this embodiment, four foot seats 4 are arranged on the base platform 2 of the suspension, the foot seats 4 and the base platform 2 of the suspension are in an integral structure, and are symmetrically arranged at four corners of the base platform 2 in pairs, wherein, as shown in fig. 7, the foot seats 4 have three side faces, the fourth side face is an open end, two symmetrical side faces have limiting holes 24, and the other side face has limiting round holes 23. The same second buffering vibration attenuation assembly is arranged in each foot seat 4 and longitudinally arranged, the second buffering vibration attenuation assembly is composed of a connecting shaft 22 and a second spiral spring 20, the second spiral spring 20 is sleeved on the connecting shaft 22, one end of the second spiral spring 20 is in contact with a boss at one end of the connecting shaft 22, and the other end of the second spiral spring is in contact with the side face of the foot seat 4. Connecting axle 22 rotates with elastic support assembly 5 through first round pin axle 1 and is connected, and first round pin axle 1 is interference fit with the support frame, and connecting axle 22 guarantees the direction of motion through spacing round hole 23, and first round pin axle 1 prevents that second coil spring 20 can be destroyed along the spacing hole 24 motion in both sides simultaneously when the vibration is too strong.
In this embodiment, the elastic support assembly 5 is rotatably connected to the connecting seat 10 on the receiving platform 7 through the second pin 11, the second pin 11 is connected to the support rod 3 of the elastic support assembly 5 in an interference fit manner, there are four connecting seats 10, and the connecting seat 10 is located below the receiving platform 7 and integrated with the receiving platform 7.
In this embodiment, as shown in fig. 1, a first coil spring 12 is connected between the base platform 2 and the receiving platform 7, and two coil springs are longitudinally arranged; the first helical spring 12 is fixed with the spring fixing seat 21 on the base platform 2 through the spring fixing seat 16 on the bearing platform 7.
In this embodiment, as shown in fig. 1, the supporting platform 7 has two limiting slideways 8, and the two limiting slideways 8 are connected to the sliding blocks 14 on the seat platform 9 and are symmetrically arranged. One end of the limiting slide way 8 is open, and the other end is closed, so that a sliding block 14 can be conveniently installed; two sliding blocks 14 are arranged below the seat platform 9, are integrated with the seat platform 9 and have the functions of bearing and guiding.
In this embodiment, the elastic support assembly 5 can be used to protect the first coil spring 12 and prevent the first coil spring 12 from being damaged when the vibration is too strong.
In this embodiment, the base platform 2 of the suspension is rigidly connected to the vehicle body by bolts and nuts.
In this embodiment, the seat surface platform 9 of the suspension is rigidly connected to the seat frame by bolts and nuts.
In this embodiment, can install seat skeleton and soft sponge above the suspension and regard as auxiliary device, promote driver's travelling comfort.
The working principle of the invention is as follows:
when an agricultural vehicle is operated in a non-standard road environment, the vehicle is subjected to vibrations from both the longitudinal and vertical directions. When longitudinal vibrations occur, a relative movement of the seat platform 9 relative to the receiving platform 7 is caused. If the seat platform 9 moves backward relative to the receiving platform 7 at the beginning, the pulley 19 located at the rear part rises along the buffering slide way 15, the buffering slide way 15 gives a resistance to the pulley 19, the pulley 19 is connected to the third pin shaft 17 through a bearing, the third pin shaft 17 is connected with the connecting rod 18, namely, the pulley 19 gives a resistance to the seat platform 9, so that the vibration is reduced, meanwhile, the connecting rod 18 compresses the adjusting spring 25 due to the fact that the pulley 19 rises along the buffering slide way 15, the adjusting spring 25 is compressed, the vibration energy is absorbed, the vibration intensity is reduced, and under the action of the compression adjusting spring 25, a downward acting force along the buffering slide way 15 is acted on the pulley 19 through the connecting rod 18, the third pin shaft 17 and the bearing, so that the resistance of the pulley 19 rising along the buffering slide way 15 is increased. When the pulley moves to the highest position of the buffering slide way 15, under the action of the compression coil spring 25, acting on the pulley 19 through the connecting rod 18, the third pin shaft 17 and the bearing, a downward acting force along the buffering slide way 15 is exerted on the pulley 19, and the pulley 19 moves downwards, namely the seat surface platform 9 moves forwards relative to the bearing platform 7, and the motion is repeated until the vibration disappears.
If the seat surface platform 9 initially moves forward relative to the receiving platform 7, the damping principle is the same as if the seat surface platform 9 initially moves forward relative to the receiving platform 7. Therefore, the seat suspension provided by the invention has good buffer and vibration reduction effects in the longitudinal direction.
When the vibration in the vertical direction occurs, the distance between the receiving platform 7 and the base platform 2 is shortened, and the two first coil springs 12 between the receiving platform 7 and the base platform 2 are compressed to absorb the vibration energy and reduce the vibration intensity. Meanwhile, the elastic support assembly 5 is pressed down, the fourth pin 28 moves downward along the slide rail 26, the support rod 3 also slides downward in the through groove 27, and the vibration is converted into longitudinal vibration through the elastic support assembly 5 and is transmitted to the second buffering vibration attenuation assembly located in the foot seat 4 through the connection of the first pin 1. The support rod 3 is connected with the connecting shaft 22 through the first pin shaft 1, the elastic bracket assembly 5 pushes the connecting shaft 22 to compress the second spiral spring 20 to move, and the second spiral spring 20 is compressed to absorb vibration energy, so that the vibration intensity is reduced. When the distance between the receiving platform 7 and the base platform 2 is shortest, under the combined action of the first spiral spring 12 between the receiving platform 7 and the base platform 2 and the second spiral spring 20 at the foot seat, the distance between the receiving platform 7 and the base platform 2 is increased and gradually restored, the elastic support assembly 5 is restored, and the operation is repeated until the vibration disappears. Therefore, the seat suspension provided by the invention has good buffering and vibration damping effects in the vertical direction.
In conclusion, the invention provides the agricultural vehicle buffer vibration damping seat suspension, which comprises a seat suspension body, adopts the mechanical seat suspension to realize the buffer vibration damping function, has simple structure, long service life, easy maintenance and good buffer vibration damping effect in the longitudinal direction and the vertical direction, improves the smoothness of vehicle running and the comfort of a driver, and better meets the requirement of the modern agricultural vehicle seat buffer vibration damping.
It should be noted that while the invention has been described in terms of the above-mentioned embodiments, other embodiments are also possible. It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended that all such changes and modifications be covered by the appended claims and their equivalents.
Claims (10)
1. The utility model provides an agricultural vehicle buffering damping seat suspension, includes the base platform and accepts the platform, its characterized in that: the bearing platform is installed on the base platform through the elastic support assembly of first coil spring and the first coil spring both sides of being located, be equipped with spacing slide and buffering slide on bearing the platform, wherein spacing slide sets up the up end of bearing the platform, it is the arc concave surface to bear the platform both sides face, and the buffering slide setting still installs the seat face platform on bearing the platform on the arc concave surface, seat face platform both ends symmetry is equipped with protruding connecting portion, its bottom surface be equipped with spacing slide complex slider be equipped with first buffering damping subassembly on the protruding connecting portion, first buffering damping subassembly include with buffering slide constitutes rolling contact's pulley and is used for adjusting the pressure adjustment unit of pulley and buffering slide face pressure.
2. An agricultural vehicle cushioned shock seat suspension as set forth in claim 1, wherein: each end of the seat surface platform is provided with two protruding connecting portions which are spaced at a certain distance, and each protruding connecting portion is provided with a first buffering vibration attenuation assembly.
3. An agricultural vehicle cushioned shock seat suspension as claimed in claim 1 or claim 2, wherein: first buffering damping subassembly include adjusting bolt, adjusting spring, connecting rod and pulley, adjusting bolt installs in the screwed hole of protruding connecting portion, the boss contact of adjusting spring one end and connecting rod one end, the other end and adjusting bolt contact, the connecting rod constitutes to rotate through third round pin axle and pulley and is connected, the pulley contacts with buffering slide way face.
4. An agricultural vehicle cushioned shock seat suspension as claimed in claim 1 or claim 2, wherein: the first spiral springs are provided with an even number and are respectively arranged between the bearing platform and the base platform through spring fixing holes on the bearing platform and the base platform.
5. An agricultural vehicle cushioning shock absorbing seat suspension as set forth in claim 4, wherein: the elastic support assemblies are provided with two groups and are symmetrically distributed on two sides of the bearing platform by taking the limiting slide ways as a reference.
6. An agricultural vehicle cushioned shock seat suspension as set forth in claim 5, wherein: the elastic support component is composed of two supporting rods which are arranged in a crossed mode, the upper ends of the supporting rods are rotatably connected with the bearing platform through second hinge pins, and the lower ends of the supporting rods are installed in foot seats on the base platform through second buffering vibration attenuation components.
7. An agricultural vehicle cushioned shock seat suspension as set forth in claim 6, wherein: the elastic support component consists of a first support rod and a second support rod, a fourth pin shaft is installed on the first support rod, the second support rod is provided with a limiting slide rail and a through groove, the first support rod and the second support rod are arranged in a crossed mode through the through groove, the first support rod is matched in the limiting slide rail of the second support rod through a fourth pin shaft on the first support rod in a sliding mode, and the fourth pin shaft can slide along the limiting slide rail.
8. An agricultural vehicle cushioned shock seat suspension as set forth in claim 7, wherein: the first supporting rod and the second supporting rod are arc-shaped rods.
9. An agricultural vehicle cushioned shock seat suspension as set forth in claim 6, wherein: the base platform is provided with four foot seats, every two of the foot seats are symmetrically arranged at four corners of the base platform, each foot seat is provided with three side faces, the side faces of the two symmetry faces are provided with limiting holes, the other side face is provided with a limiting round hole, and each foot seat is internally provided with an end connection second buffering vibration attenuation assembly connected with the supporting rod.
10. An agricultural vehicle cushioned shock seat suspension as set forth in claim 9, wherein: the second buffering vibration attenuation subassembly constitute by connecting axle and second coil spring, second coil spring overlaps on the connecting axle, second coil spring one end contacts with the one end boss of connecting axle, the other end contacts with the foot rest side, the connecting axle rotates through first round pin axle with the elastic support subassembly to be connected, first round pin axle is installed in spacing downthehole, the one end of connecting axle passes spacing round hole and guarantees the direction of motion through spacing round hole, first round pin axle moves in the spacing downthehole motion in both sides simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210536673.3A CN114683981B (en) | 2022-05-18 | 2022-05-18 | Agricultural vehicle buffering damping seat suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN114683981B CN114683981B (en) | 2023-04-18 |
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| CN109435800A (en) * | 2018-12-21 | 2019-03-08 | 安徽工程大学 | Low frequency vibration isolation seat |
| CN212698244U (en) * | 2020-06-12 | 2021-03-16 | 安吉县盛信办公家具有限公司 | Leisure chaise longue with subregion control by temperature change function |
| CN212861181U (en) * | 2020-09-07 | 2021-04-02 | 张景岩 | Vehicle for detecting technical conditions of roads |
| CN213138563U (en) * | 2020-09-29 | 2021-05-07 | 泉州市荣德机械科技有限公司 | Seat damping device |
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| US5927679A (en) * | 1997-04-21 | 1999-07-27 | Milsco Manufacturing Company | Adjustable vehicle seat suspension |
| US20040159763A1 (en) * | 2003-02-18 | 2004-08-19 | National Seating Company, Inc. | Vehicle seating system with improved vibration isolation |
| JP4509214B1 (en) * | 2009-11-30 | 2010-07-21 | 株式会社オージーエー | Link spring device and exercise support chair provided with the same |
| CN103029607A (en) * | 2012-12-07 | 2013-04-10 | 常州大学 | Two-freedom-degree vehicle shock-absorption seat mechanism |
| CN204263974U (en) * | 2014-11-24 | 2015-04-15 | 吉林大学 | A kind of off highway vehicle seat two-dimension non linearity vibration isolation suspension |
| CN106627286A (en) * | 2016-10-20 | 2017-05-10 | 十堰博金工贸有限公司 | Automotive damping device for installing automotive seat |
| CN107399254A (en) * | 2017-06-22 | 2017-11-28 | 江苏大学 | A kind of crawler type grain combine floating raft type driver seat structure |
| CN108528298A (en) * | 2018-06-04 | 2018-09-14 | 太原科技大学 | A kind of half active damping seat integrated control structure |
| CN109435800A (en) * | 2018-12-21 | 2019-03-08 | 安徽工程大学 | Low frequency vibration isolation seat |
| CN212698244U (en) * | 2020-06-12 | 2021-03-16 | 安吉县盛信办公家具有限公司 | Leisure chaise longue with subregion control by temperature change function |
| CN212861181U (en) * | 2020-09-07 | 2021-04-02 | 张景岩 | Vehicle for detecting technical conditions of roads |
| CN213138563U (en) * | 2020-09-29 | 2021-05-07 | 泉州市荣德机械科技有限公司 | Seat damping device |
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| CN114683981B (en) | 2023-04-18 |
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