CN210011648U - Nonlinear seat suspension and driver's seat with fine-tuning - Google Patents
Nonlinear seat suspension and driver's seat with fine-tuning Download PDFInfo
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- CN210011648U CN210011648U CN201920386588.7U CN201920386588U CN210011648U CN 210011648 U CN210011648 U CN 210011648U CN 201920386588 U CN201920386588 U CN 201920386588U CN 210011648 U CN210011648 U CN 210011648U
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Abstract
The utility model relates to a nonlinear seat suspension's and driving chair with fine-tuning. The nonlinear seat suspension comprises a frame body, the frame body comprises an upper suspension, a vertical suspension and a lower chassis, an elastic compression part connected with the upper suspension and the lower chassis is arranged in the vertical suspension, cams are arranged on two sides of the vertical suspension, and a rolling mechanism is arranged on the side surface of each cam, which is far away from the vertical suspension, in a contact manner; the nonlinear seat suspension also comprises a fine adjustment mechanism for adjusting the pretightening force of the elastic stretching component; the fine adjustment mechanism comprises horizontal sliding parts, connecting parts and adjusting parts which are symmetrically arranged on two sides of the rolling mechanism. The nonlinear seat suspension can realize nonlinear contact, has the advantages of wide vibration isolation frequency band, low static rigidity, high dynamic rigidity and the like, has better comfort level and is simple in design. In addition, the fine adjustment mechanism can adjust the pretightening force of the elastic stretching component, so that the connection is more reliable and tight, the effect is fully exerted, and the service life is prolonged.
Description
Technical Field
The utility model belongs to the vehicle field, more specifically relates to a nonlinear seat suspension and driving chair with fine-tuning.
Background
The driving chair used in the current market is particularly applied to driving chairs of wheel tractors, forklifts and the like, a driver needs to work while driving, and the function requirement of the driving chair is higher, but most of the prior driving chairs have simple structures and single functions, and the functions which are very important for the driver, such as auxiliary driving function, driving comfort and the like, cannot be embodied.
The damage of vibration to a driver during operation is mainly caused by low-frequency vibration, the rigidity of the suspension of the existing driver chair is high, the natural frequency of a suspension system of the chair becomes high, and the attenuation of the vibration caused by the low frequency is little, so that the aim of improving the comfort of the driver is not fulfilled. On the other hand, if the rigidity is low, the driver will make the seat displace greatly when contacting the seat, if the vehicle vibrates strongly during running, a larger vibration stroke will be brought, the larger displacement when contacting the seat brings a spatial limitation to the arrangement of the seat suspension, and the excessive vibration stroke will cause the driver to have a reduced ability to control the vehicle direction, so that the steering is disturbed, the driving risk of the driver is increased, and the probability of traffic accidents is increased. At present, linear seat suspensions and air spring suspensions are more applied, the linear suspensions have theoretical limitation on the problem of low-frequency vibration isolation, namely, when the low-frequency vibration isolation performance is good, the static displacement is large, the low-frequency vibration isolation requirement of off-highway vehicles (operation vehicles) is difficult to meet, and although the low-frequency vibration isolation performance of the air spring suspensions is good, air chambers with larger volumes are required to be added. Active and semi-active suspensions theoretically have ideal vibration isolation performance, but are complex in system, high in cost and large in energy consumption.
At present, a nonlinear seat suspension (application No. 2018109560115) has been developed, which has a characteristic of high static stiffness and low dynamic stiffness and can achieve a good vibration damping effect. However, the elastic stretching component in the design is subjected to pressure for a long time, and the joints between the elastic stretching component and other components are easy to generate gaps or relative slippage, so that the effect exertion and the service life are influenced.
Therefore, the design of the driving chair which is more reliable and compact in connection, scientific in structure and better in driving comfort has important improvement value on the overall quality of the working vehicle and has very important significance on a driver.
Disclosure of Invention
An object of the utility model is to overcome the not good defect or not enough of current driving chair suspension reliability and compactness, provide a fine-tuning of non-linear seat suspension. The utility model provides a nonlinear seat suspension can realize nonlinear contact, and the vibration isolation frequency bandwidth is wide, and advantages such as low static rigidity, high dynamic stiffness have overcome the vibration stroke and the static displacement condition on the large side that the requirement of low rigidity leads to in the linear suspension motion process, have better comfort level, and the design is simple. In addition, the horizontal sliding part, the connecting part and the adjusting part form a fine adjustment mechanism, and the pre-tightening force of the elastic stretching part can be adjusted through the cooperation of the horizontal sliding part, the connecting part and the adjusting part, so that the connection is more reliable and tight, the effect is fully exerted, and the service life is prolonged.
Another object of the utility model is to provide a driving chair.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
a fine adjustment mechanism of a nonlinear seat suspension comprises a frame body, wherein the frame body comprises an upper suspension, a vertical suspension and a lower chassis, an elastic compression part connected with the upper suspension and the lower chassis is arranged in the vertical suspension, cams are arranged on two sides of the vertical suspension, and a rolling mechanism is arranged on the side surface of each cam, which is far away from the vertical suspension, in a contact manner; the nonlinear seat suspension also comprises a fine adjustment mechanism for adjusting the pretightening force of the elastic stretching component; the fine adjustment mechanism comprises horizontal sliding pieces, connecting pieces and adjusting pieces which are symmetrically arranged on two sides of the rolling mechanism; the elastic stretching component is fixedly arranged between the 2 connecting pieces, the rolling mechanism and the connecting pieces are fixedly connected with the adjusting pieces, the connecting pieces are provided with threaded holes which are horizontally penetrated, single-end openings are arranged on the adjusting pieces, and depth adjusting holes matched with the threaded holes are formed in the adjusting pieces, the horizontal sliding pieces are connected with the connecting pieces through threads and penetrate through the connecting pieces, and one ends of the penetrating through parts are matched with the depth adjusting holes.
Go up suspension and lower chassis and play support and fixed action, when receiving people's weight power (vertical downwards), the vibration of vertical direction will appear in nonlinear seat suspension, elastic compression part is compressed, and then drive the cam downstream, make the cam and the rolling mechanism of mutual contact extrude each other, rolling mechanism makes a round trip to roll in the periphery of cam, and drive elastic tension part through the connecting piece and make a round trip tensile shrink in the horizontal direction, thereby make the vibration of vertical direction change into the flexible of horizontal direction, it is great to realize that nonlinear seat suspension rigidity is great when static, the less characteristic of rigidity during the developments, reach better damping effect.
In addition, the horizontal sliding part, the connecting part and the adjusting part form a fine adjustment mechanism, and the pre-tightening force of the elastic stretching part can be adjusted through the cooperation of the horizontal sliding part, the connecting part and the adjusting part, so that the connection is more reliable and tight, the effect is fully exerted, and the service life is prolonged. The specific process is as follows: when the horizontal sliding piece is not completely matched with the adjusting piece, the connecting piece is attached to the adjusting piece; when the horizontal sliding piece moves horizontally and is further matched with the adjusting piece until the horizontal sliding piece is completely matched and can not move, the connecting piece can move towards the direction opposite to the movement of the horizontal sliding piece because the connecting piece is in threaded connection with the horizontal sliding piece, the connecting piece is not attached to the adjusting piece any more, and the elastic stretching part on the connecting piece also stretches along with the connecting piece; when the horizontal sliding part moves reversely, the connecting piece can always move towards the direction of jointing with the adjusting piece before the connecting piece is jointed with the adjusting piece, so that the elastic stretching part is contracted; and then the size of the pretightening force of the elastic stretching component can be adjusted.
Preferably, the resilient compression member is a compression spring.
The compression spring has better compression and recovery performance.
Preferably, the cam is elliptical.
More preferably, the long axis of the cam is disposed in a vertical direction.
The cam with the special design is in good contact with a rolling mechanism, and can extrude and roll.
Preferably, the cams are symmetrically arranged.
Preferably, the cam is removably connected to the vertical suspension.
The detachable connection can conveniently replace the worn cam, and prolong the service life of the nonlinear seat suspension; in addition, the proper cam size can be changed under different requirements so as to adapt to different body weights (different damping requirements).
More preferably, the cam and the vertical suspension are connected by a bolt structure.
Preferably, the elastic tension member is a tension spring.
The extension spring has a good extension effect, can realize the conversion of vibration in the vertical direction into movement in the horizontal direction, and has a good vibration reduction effect.
Preferably, the rolling mechanism comprises a roller and a roller, the roller is sleeved on the roller, and the roller is fixedly connected with the adjusting piece.
More preferably, the roller is welded to the adjusting member.
Preferably, the horizontal sliding piece is an adjusting screw; the adjusting piece is an adjusting block, and a depth adjusting hole is formed in the adjusting block; the connecting piece is a connecting block, and a threaded hole matched with the adjusting screw is formed in the connecting block.
Preferably, the number of the horizontal sliding pieces is one or more (such as 1, 2, 4, etc.).
Of course, the number of the holes on the adjusting piece is consistent with that of the horizontal sliding pieces, and the number of the threaded holes on the connecting piece is also consistent with that of the horizontal sliding pieces.
Preferably, the elastic tension member is a tension spring.
The number of the elastic stretching components can be one or more, so that the integral rigidity of the elastic stretching components can be adjusted to adapt to drivers with different weights, and a better vibration damping effect is achieved.
Preferably, the elastic tension member is detachably connected to the connecting member.
The number of the elastic stretching components can be adjusted and the elastic stretching components can be replaced through the detachable connection design.
Preferably, the frame body further comprises a support frame vertically arranged on the lower chassis, and the horizontal sliding mechanism is fixedly connected with the support frame.
In order to achieve a better vibration damping effect, a scissor type lifting mechanism is preferably further arranged between the upper suspension and the lower chassis.
The present scissor type lifting mechanism can be used in the utility model.
Preferably, the scissor lifting mechanism comprises a scissor lifting suspension and a cylinder for driving the scissor lifting suspension to lift.
The utility model discloses still ask protection driver's seat, including the cushion, the cushion bottom is provided with above-mentioned fine-tuning.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a nonlinear seat suspension with fine-tuning can realize nonlinear contact, and the vibration isolation frequency band is wide, low static rigidity, high dynamic stiffness advantage such as, has overcome the vibration stroke and the static displacement bigger than normal circumstances that the requirement of low rigidity leads to in the linear suspension motion process, has better comfort level, and the design is simple. In addition, the horizontal sliding part, the connecting part and the adjusting part form a fine adjustment mechanism, and the pre-tightening force of the elastic stretching part can be adjusted through the cooperation of the horizontal sliding part, the connecting part and the adjusting part, so that the connection is more reliable and tight, the effect is fully exerted, and the service life is prolonged.
Drawings
Fig. 1 is a schematic structural view of a nonlinear seat suspension provided in embodiment 1;
fig. 2 is another schematic structural diagram (without a scissor lift mechanism) of the nonlinear seat suspension provided in embodiment 1;
wherein, 1 is a frame body, 101 is an upper suspension, 102 is a vertical suspension, 103 is a lower chassis, and 104 is a supporting frame; 2 is a horizontal sliding part; 3 is a connecting piece, 4 is an elastic stretching part; 5 is an adjusting piece, 6 is a rolling mechanism, 601 is a roller and 602 is a rolling shaft; 7 is a scissor type lifting mechanism, 8 is a cam, and 9 is an elastic compression component.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
It will be understood that when an element is referred to as being "disposed on" or "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Example 1
The embodiment provides a nonlinear seat suspension, as shown in fig. 1-2, which includes a frame body 1, wherein the frame body 1 includes an upper suspension 101, a vertical suspension 102, a lower chassis 103 and a support frame 104, an elastic compression component 9 connected with the upper suspension 101 and the lower chassis 103 is arranged in the vertical suspension 102, cams 8 are symmetrically arranged on two sides of the vertical suspension 102, and the support frame 104 is arranged on the lower chassis 103; the side face, far away from the vertical suspension 102, of the cam 8 is symmetrically provided with rolling mechanisms 6 in a contact manner, the nonlinear seat suspension further comprises a fine adjustment mechanism used for adjusting the pretightening force of the elastic stretching component 4, the fine adjustment mechanism comprises horizontal sliding pieces 2, connecting pieces 3 and adjusting pieces 5 which are symmetrically arranged on two sides of the rolling mechanism 6, specifically, the cam 8 is an oval cam, the rolling mechanism 6 comprises a roller 601 and a rolling shaft 602, and the roller 602 is sleeved with the roller 601; horizontal sliding part 2 is adjusting screw, and the quantity is 2, and connecting piece 3 is the connecting block, and elastic stretching part 4 is extension spring, and its quantity is 4, and adjusting part 5 is the regulating block.
The extension spring is fixedly arranged among the 2 connecting blocks, the rolling shaft 602 is welded with the adjusting block, the adjusting block is fixedly connected with the connecting blocks,
the connecting block is provided with the screw hole (2) that the level runs through, be provided with on the regulating block single-ended opening and with screw hole assorted depth control hole (2), adjusting screw passes through the screw thread to be connected and the through connection piece with the connecting block, the one end and the depth control hole phase-match that run through.
The rolling mechanism 6 is fixedly connected with the adjusting piece 5 in a welding mode. The horizontal sliding part 2 horizontally penetrates through the connecting piece 5 and is matched with an adjusting piece 7 arranged on the frame body 1; the horizontal sliding piece 2 and the connecting piece 5 are connected through threads; the symmetrically arranged connecting pieces 5 are connected through an elastic stretching part 8.
The elliptical cam is removably attached to the vertical suspension 102 so that it can be replaced when desired. Specifically, the two are connected by a bolt structure. The special connection mode can conveniently replace the worn elliptical cam, and the service life of the nonlinear seat suspension is prolonged; in addition, the size of the elliptical cam can be changed properly under different requirements so as to adapt to different vibration reduction requirements of different body weights.
In order to further improve the vibration damping effect, a scissor lift mechanism 7 is further arranged between the upper suspension 101 and the lower chassis 103. Specifically, the scissor type lifting mechanism 9 comprises a scissor type lifting suspension and a cylinder for driving the scissor type lifting suspension to lift, two ends of the scissor type lifting suspension are respectively fixedly connected with the upper suspension 101 and the lower chassis 103, and the cylinder is arranged on the lower chassis 103.
Go up suspension 101 and lower chassis 103 and play support and fixed action, when receiving the vertical downwards of people's weight power, the vibration of vertical direction will appear in nonlinear seat suspension, compression spring is compressed, and then drive cam 8 downstream, make mutually contacting cam 8 and gyro wheel 601 extrude each other, gyro wheel 601 rolls round trip on cam 8's periphery, and drive extension spring through the connecting block and make a round trip tensile contraction at the horizontal direction, thereby make the vibration of vertical direction change into the flexible of horizontal direction, it is great to realize that nonlinear seat suspension rigidity is great when static, the less characteristic of rigidity during the developments, reach better damping effect.
In addition, the fine adjustment mechanism is composed of the adjusting spring, the connecting block and the adjusting block, and the pre-tightening force of the extension spring can be adjusted through the cooperation of the adjusting spring, the connecting block and the adjusting block, so that the connection is more reliable and tight, the effect is fully exerted, and the service life is prolonged. The specific process is as follows: when the adjusting screw is not completely matched with the adjusting block, the connecting block is attached to the adjusting block; when the adjusting screw moves horizontally and is further matched with the adjusting block until the adjusting screw is completely matched with the adjusting block, the adjusting screw can move in the direction opposite to the moving direction of the adjusting screw due to the threaded connection between the connecting block and the adjusting screw, the connecting block is not attached to the adjusting block any more, and the extension spring between the connecting blocks also extends along with the connecting block; when the adjusting screw moves reversely, the connecting block can always move towards the direction of jointing with the adjusting block before the connecting block is jointed with the adjusting block, so that the stretching spring is contracted; thereby realizing the adjustment of the pretightening force of the extension spring.
The utility model provides a nonlinear seat suspension can realize nonlinear contact, and the vibration isolation frequency bandwidth is wide, and advantages such as low static rigidity, high dynamic stiffness have overcome the vibration stroke and the static displacement condition on the large side that the requirement of low rigidity leads to in the linear suspension motion process, have better comfort level, and the design is simple. In addition, the horizontal sliding part, the connecting part and the adjusting part form a fine adjustment mechanism, and the pre-tightening force of the elastic stretching part can be adjusted through the cooperation of the horizontal sliding part, the connecting part and the adjusting part, so that the connection is more reliable and tight, the effect is fully exerted, and the service life is prolonged.
The non-linear seat suspension provided by the present embodiment can be applied to a conventional driver's seat, specifically, the driver's seat comprises a seat cushion, and the bottom of the seat cushion is provided with the non-linear seat suspension.
The driving chair provided by the utility model has better vibration reduction effect and high comfort level.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (10)
1. The nonlinear seat suspension with the fine adjustment mechanism is characterized by comprising a frame body (1), wherein the frame body (1) comprises an upper suspension (101), a vertical suspension (102) and a lower chassis (103), an elastic compression part (9) connected with the upper suspension (101) and the lower chassis (103) respectively is arranged in the vertical suspension, cams (8) are arranged on two sides of the vertical suspension (102), and a rolling mechanism (6) is arranged on the side surface, away from the vertical suspension (102), of each cam (8) in a contact manner; the nonlinear seat suspension also comprises a fine adjustment mechanism for adjusting the pretightening force of the elastic stretching component (4); the fine adjustment mechanism comprises horizontal sliding pieces (2), connecting pieces (3) and adjusting pieces (5) which are symmetrically arranged on two sides of the rolling mechanism (6); elastic stretching part (4) are fixed to be set up between 2 connecting piece (3), rolling mechanism (6) and connecting piece (3) all with regulating part (5) fixed connection, connecting piece (3) are provided with the screw hole that the level runs through, be provided with on regulating part (5) single-ended opening and with screw hole assorted depth control hole, horizontal sliding part (2) are connected and run through screw thread and connecting piece (3), the one end and the depth control hole phase-match that run through.
2. The non-linear seat suspension according to claim 1, characterized in that the resilient compression member (9) is a compression spring.
3. The non-linear seat suspension according to claim 1, characterized in that the cam (8) is oval.
4. The non-linear seat suspension according to claim 1, wherein the rolling mechanism (6) comprises a roller (601) and a roller (602), the roller (602) is sleeved with the roller (601), and the roller (602) is fixedly connected with the connecting member (3).
5. The non-linear seat suspension according to claim 1, characterized in that the horizontal slider (2) is an adjusting screw; the adjusting piece (5) is an adjusting block, and a depth adjusting hole is formed in the adjusting block; the connecting piece (3) is a connecting block, and a threaded hole matched with the adjusting screw is formed in the connecting block.
6. The non-linear seat suspension according to claim 1, characterized in that the elastic tension member (4) is a tension spring.
7. The non-linear seat suspension according to claim 1, characterized in that the frame body (1) further comprises a support frame (104) vertically arranged on the lower chassis (103), and the connecting piece (3) is fixedly connected with the support frame (104).
8. The non-linear seat suspension according to claim 1, characterized in that a scissor lift (7) is further arranged between the upper suspension (101) and the lower chassis (103).
9. The non-linear seat suspension of claim 8, wherein the scissor lift mechanism (7) comprises a scissor lift suspension and a cylinder for driving the scissor lift suspension to lift.
10. A driver's seat comprising a seat cushion, wherein the seat cushion is provided at a bottom thereof with a non-linear seat suspension according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920386588.7U CN210011648U (en) | 2019-03-25 | 2019-03-25 | Nonlinear seat suspension and driver's seat with fine-tuning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920386588.7U CN210011648U (en) | 2019-03-25 | 2019-03-25 | Nonlinear seat suspension and driver's seat with fine-tuning |
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| Publication Number | Publication Date |
|---|---|
| CN210011648U true CN210011648U (en) | 2020-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920386588.7U Expired - Fee Related CN210011648U (en) | 2019-03-25 | 2019-03-25 | Nonlinear seat suspension and driver's seat with fine-tuning |
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| CN (1) | CN210011648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109895666A (en) * | 2019-03-25 | 2019-06-18 | 华南农业大学 | A kind of non-linear seat suspension and driver seat with micro-adjusting mechanism |
-
2019
- 2019-03-25 CN CN201920386588.7U patent/CN210011648U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109895666A (en) * | 2019-03-25 | 2019-06-18 | 华南农业大学 | A kind of non-linear seat suspension and driver seat with micro-adjusting mechanism |
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Granted publication date: 20200204 |