CN208101767U - A kind of stepless height adjusting mechanism of agricultural machinery seat base - Google Patents
A kind of stepless height adjusting mechanism of agricultural machinery seat base Download PDFInfo
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- CN208101767U CN208101767U CN201820473202.1U CN201820473202U CN208101767U CN 208101767 U CN208101767 U CN 208101767U CN 201820473202 U CN201820473202 U CN 201820473202U CN 208101767 U CN208101767 U CN 208101767U
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- plate
- fixedly connected
- support bar
- agricultural machinery
- bottom plate
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Abstract
The utility model discloses a kind of stepless height adjusting mechanisms of agricultural machinery seat base, including bottom plate, lifting bindiny mechanism and top plate；Lifting bindiny mechanism include two x type brackets, lead-screw drive mechanism, drive rod, x type back-end support lower end be provided with downslide driving wheel, upper end is provided with movable pulley, two x type brackets by first connecting rod be connected；Sliding rail is provided on bottom plate, top plate, the preceding lower end of x type bracket is fixedly connected with bottom plate, preceding upper end is fixedly connected with the lower end surface of top plate, upper and lower movable pulley is rolled and is connected by sliding rail and bottom plate, top plate, lead-screw drive mechanism adjusts the rolling of upper and lower movable pulley by drive rod, is capable of the height of step-less adjustment seat.
Description
Technical field
The utility model relates to automotive field more particularly to a kind of stepless high low adjustment machines of agricultural machinery seat base
Structure.
Background technique
Currently, science and technology rapid development, the comfort and practicability of seat are also increasingly by the attention of user.It is special
It is not in agricultural mechanical field, due to its working environment complexity, the uncertainty of work-yard, each pedestal chair is borne by whole
Important role in machine directly affects the experience effect of driver.Since environment is poor, ground when farmland is gathered in for large-scale harvester
The uncertain factors such as out-of-flatness, so seat is more important in the equipment such as harvester.And the height of driver is different, seat
The height of chair also directly affects flexibility and the field of view of driver's operation.
Utility model content
The purpose of the utility model is to provide the stepless height adjusting mechanisms of agricultural machinery seat base, are capable of step-less adjustment seat
Highly.
The technical solution adopted in the utility model is：
A kind of stepless height adjusting mechanism of agricultural machinery seat base, including bottom plate, lifting bindiny mechanism and top plate；The liter
Dropping bindiny mechanism includes two x type brackets, lead-screw drive mechanism, drive rod and screw rod limiting plate, and the x type bracket includes the
The middle part of one support rod and second support bar, first support bar and second support bar is hinged, and first support bar lower end is provided with
Downslide driving wheel, second support bar upper end are provided with movable pulley, and the first support bar lower end in two x type brackets passes through
First connecting rod is connected；Lead-screw drive mechanism includes lead screw and transmission nut, and drive rod one end is fixedly connected with transmission nut, separately
One end is contacted with first connecting rod；The screw rod limiting plate is fixedly installed on bottom plate upper surface, and on the screw rod limiting plate
It is provided with the first screw rod limiting hole and locking nut, locking nut is fixedly connected with screw rod limiting plate, and the first screw rod limiting hole
It is overlapped with the center of locking nut, the front end of lead screw passes through locking nut and the first screw rod limiting hole；
The upper surface of the bottom plate is provided with and the matched sliding rail of downslide driving wheel, the top plate lower end surface setting
Have and is fixedly connected with the upper surface of bottom plate with the matched sliding rail of upper movable pulley, the preceding lower end of two x type brackets, two
The preceding upper end of x type bracket is fixedly connected with the lower end surface of top plate, and downslide driving wheel passes through the upper surface of sliding rail and bottom plate
Connection is rolled, upper movable pulley is rolled by the lower end surface of sliding rail and top plate and connected.
The lifting bindiny mechanism further includes adjusting buffer gear, and the adjusting buffer gear includes pressure spring and pressure spring
Connecting plate, the pressure spring connecting plate are set between two x type brackets, and two ends of pressure spring connecting plate respectively with two
X type bracket is fixedly connected；The upper end of the pressure spring is fixedly connected with pressure spring connecting plate, and lower end and the bottom plate of pressure spring are fixed
Connection.
The quantity of the pressure spring is 2.
The stepless height adjusting mechanism of agricultural machinery seat base, further includes adjusting handle, the adjusting handle and silk
The front end of thick stick is fixedly connected.
The stepless height adjusting mechanism of agricultural machinery seat base, further includes limitting casing, the limitting casing includes front frame
Plate, rear framing plate, left frame plate and right deckle board；The lower end of the limitting casing is fixedly connected with bottom plate, is set on the preceding deckle board
It is equipped with the second screw rod limiting hole, the rear end of lead screw passes through the second screw rod limiting hole, and the transmission nut is located in limitting casing；
Drive rod limit hole is set on the rear framing plate, and the rear end of drive rod passes through drive rod limit hole and the fixed company of first connecting rod
It connects.
The stepless height adjusting mechanism of agricultural machinery seat base, further includes drive rod resilient cushion, and the drive rod subtracts
Shake pad is fixedly installed between drive rod and first connecting rod.
The stepless height adjusting mechanism of agricultural machinery seat base, the first support bar upper end in two x type brackets are logical
It crosses second connecting rod to be connected, the second support bar upper end in two x type brackets is connected by second connecting rod, two x type branch
Second support bar lower end in frame is connected by second connecting rod.
The utility model passes through x type bracket and lead screw transmission machine in lifting bindiny mechanism by setting lifting bindiny mechanism
The step-less adjustment of lifting bindiny mechanism's height is realized in the cooperation of structure, to realize the stepless height adjusting mechanism of agricultural machinery seat base
The step-less adjustment of height meets the requirement of the drivers of different heights to the height of seat, ensure that the flexible of driver's operation
Property and field of view, also ensure the driving experience of driver, so that driver is not easy to fatigue, ensure that driving safety.
Further, top adjustment buffer gear is set, and buffering when realizing that height quickly changes by pressure spring ensure that
Height of seat smooth change improves the comfort level of seat in adjustment process.
Detailed description of the invention
Fig. 1 is the structural representation of the utility model；
Fig. 2 is the left view schematic diagram of Fig. 1.
Specific embodiment
As depicted in figs. 1 and 2, the utility model includes bottom plate 1, lifting bindiny mechanism and top plate 2；The lifting connection
Mechanism includes two x type brackets 3, lead-screw drive mechanism 4, drive rod 5 and screw rod limiting plate 6, and the x type bracket 3 includes the
The middle part of one support rod 31 and second support bar 32, first support bar 31 and second support bar 32 is hinged, under first support bar 31
End is provided with downslide driving wheel 311, and 32 upper end of second support bar is provided with movable pulley 321, in two x type brackets 3
31 lower end of first support bar is connected by first connecting rod 33；Lead-screw drive mechanism 4 includes lead screw 41 and transmission nut 42, is passed
5 one end of lever is fixedly connected with transmission nut 42, and the other end and first connecting rod 33 connect；The screw rod limiting plate 6 is solid
Surely it is set to 1 upper surface of bottom plate, and is provided with the first screw rod limiting hole and locking nut 61 on the screw rod limiting plate 6, the
One screw rod limiting hole and the center of locking nut 61 are overlapped, and locking nut 61 is fixedly connected with screw rod limiting plate 6, lead screw 41
Front end sequentially passes through locking nut 61 and the first screw rod limiting hole；The upper surface of the bottom plate 1 is provided with and downslide driving wheel
311 matched sliding rails, 2 lower end surface of top plate are provided with and the matched sliding rail of upper movable pulley 321, two x types
The preceding lower end of bracket 3 is fixedly connected with the upper surface of bottom plate 1, and the preceding upper end of two x type brackets 3 is and under top plate 2
End face is fixedly connected, and downslide driving wheel 311 is rolled by the upper surface of sliding rail and bottom plate 1 and connected, and upper movable pulley 321 passes through cunning
The lower end surface of dynamic rail road and top plate 2, which rolls, to be connected.
When needing the height to seat to be adjusted, the front end of rotational lead screw 41, then transmission nut 42 is along lead screw 41
The linear motion on front-rear direction is done, drive rod 5 and the movement of transmission nut 42 are consistent, and therefore, drive rod 5 pushes first
Connecting rod 33 does the linear motion on front-rear direction so that movable pulley under the promotion of drive rod 5, do it is straight on front-rear direction
Line rolls, and the height at x type right angle changes.After height determines, lead screw 41 is no longer rotated, transmission nut 42 is limited by lead screw 41
Position, meanwhile, lead screw 41 is also limited by the first screw rod limiting hole and locking nut 61.Drive rod 5 pushes first connecting rod 33 to drive and slides
Driving wheel 311 rolls in matched sliding rail on bottom plate 1, causes x type support angle to change, while pushing up movable pulley 321
It is rolled in the sliding rail of plate 2, to realize height change.Human body applies pressure to the stepless height adjusting mechanism of agricultural machinery seat base
When power, with the difference of pressure, it is mobile that first connecting rod 33 drives movable pulley 311 to do a certain range of adaptability.
Due to using lead-screw drive mechanism 4, with the rotation of lead screw 41, lifting bindiny mechanism realizes stepless
Height adjustment, movable pulley make height change process become it is steady.
The lifting bindiny mechanism further includes adjusting buffer gear, and the adjusting buffer gear includes pressure spring 7 and pressure
Spring connecting plate 8, the pressure spring connecting plate 8 are set between two x type brackets 3, and two ends difference of pressure spring connecting plate 8
It is fixedly connected with two x type brackets 3；The upper end of the pressure spring 7 is fixedly connected with pressure spring connecting plate 8, the lower end of pressure spring 7
It is fixedly connected with bottom plate 1.
In order to save the operating time, when lifting bindiny mechanism height adjustment be rapidly completed, go up and down connection machine
The height change of structure is rapid, and driver may feel to jolt.In order to further enhance the experience of driver, it is provided with to adjust and delays
Punch mechanism.The pressure spring 7 adjusted in buffer gear makes the height of two x type brackets 3 slowly varying, ensure that height of seat is steady
Variation, improves the comfort level of seat in adjustment process.And apply in human body to the stepless height adjusting mechanism of agricultural machinery seat base
When pressure, after first connecting rod 33 drives movable pulley 311 to do a certain range of adaptability movement, pressure spring 7 is realized to lifting connection machine
The restriction of structure height, after people leaves, pressure spring 7 is replied, so that lifting bindiny mechanism's height is replied in a certain range, is realized
Go up and down the elasticity of bindiny mechanism's height.
The other end of drive rod 5 can also be made to be fixedly connected with transmission nut 42, the other end and first connecting rod 33 also fixed company
It connects, then goes up and down bindiny mechanism and do not have elasticity after the completion of height adjustment.
Preferably, in order to enable the pace of change of height of seat is moderate, the quantity of the pressure spring 7 is 2.
The stepless height adjusting mechanism of agricultural machinery seat base further includes the adjusting handle 9 convenient for holding, the adjusting handle
9 are fixedly connected with the front end of lead screw 41, adjusting handle 9 make driver can rotational lead screw 41 easily and fast, into one
Step improves the driving experience of driver.
The stepless height adjusting mechanism of agricultural machinery seat base, further includes limitting casing 10, and the limitting casing 10 includes
Preceding deckle board, rear framing plate, left frame plate and right deckle board；The lower end of the limitting casing 10 is fixedly connected with bottom plate 1, the front frame
The second screw rod limiting hole is provided on plate, the rear end of lead screw 41 passes through the second screw rod limiting hole and transmission nut 42 cooperates, institute
The transmission nut 42 stated is located in limitting casing 10；Drive rod limit hole is set on the rear framing plate, and the rear end of drive rod 5 is worn
Drive rod limit hole is crossed to be fixedly connected with first connecting rod 33.Limitting casing 10 limits transmission nut 42 in lead-screw drive mechanism 4
Straight-line trajectory and range also prevent transmission spiral shell so that the height of two x type brackets 3 changes in a certain range
Situations such as mother 42 falls off, ensure that the stability of the stepless height adjusting mechanism of agricultural machinery seat base, reduces agricultural machinery seat base
The failure of stepless height adjusting mechanism.
The stepless height adjusting mechanism of agricultural machinery seat base further includes drive rod resilient cushion 51, the drive rod
Resilient cushion 51 is fixedly installed between drive rod 5 and first connecting rod 33, prevents the end of drive rod 5 from damaging.
The stepless height adjusting mechanism of agricultural machinery seat base, 31 upper end of first support bar in two x type brackets 3
It is connected by second connecting rod, 32 upper end of second support bar in two x type brackets 3 is connected by second connecting rod, two x
32 lower end of second support bar in type bracket 3 is connected by second connecting rod, enhances the connection between two x type brackets 3,
So that lifting bindiny mechanism is more firm.
Claims (7)
1. a kind of stepless height adjusting mechanism of agricultural machinery seat base, it is characterised in that：Including bottom plate, lifting bindiny mechanism and top
Plate；The lifting bindiny mechanism includes two x type brackets, lead-screw drive mechanism, drive rod and screw rod limiting plate, the x
Type bracket includes first support bar and second support bar, and the middle part of first support bar and second support bar is hinged, first support bar
Lower end is provided with downslide driving wheel, and second support bar upper end is provided with movable pulley, the first support in two x type brackets
Bar lower end is connected by first connecting rod；Lead-screw drive mechanism includes lead screw and transmission nut, drive rod one end and transmission spiral shell
Mother is fixedly connected, and the other end is contacted with first connecting rod；The screw rod limiting plate is fixedly installed on bottom plate upper surface, and described
It is provided with the first screw rod limiting hole on screw rod limiting plate and locking nut, locking nut are fixedly connected with screw rod limiting plate, and the
One screw rod limiting hole and the center of locking nut are overlapped, and the front end of lead screw passes through locking nut and the first screw rod limiting hole；
The upper surface of the bottom plate be provided with the matched sliding rail of downslide driving wheel, the top plate lower end surface be provided with
The upper matched sliding rail of movable pulley, the preceding lower end of two x type brackets are fixedly connected with the upper surface of bottom plate, two x types
The preceding upper end of bracket is fixedly connected with the lower end surface of top plate, and downslide driving wheel is rolled by the upper surface of sliding rail and bottom plate
Connection, upper movable pulley are rolled by the lower end surface of sliding rail and top plate and are connected.
2. the stepless height adjusting mechanism of agricultural machinery seat base according to claim 1, it is characterised in that：The lifting connects
Connection mechanism further includes adjusting buffer gear, and the adjusting buffer gear includes pressure spring and pressure spring connecting plate, and the pressure spring connects
Fishplate bar is set between two x type brackets, and two ends of pressure spring connecting plate are fixedly connected with two x type brackets respectively；Institute
The upper end for the pressure spring stated is fixedly connected with pressure spring connecting plate, and the lower end of pressure spring is fixedly connected with bottom plate.
3. the stepless height adjusting mechanism of agricultural machinery seat base according to claim 2, it is characterised in that：The pressure spring
Quantity is 2.
4. the stepless height adjusting mechanism of agricultural machinery seat base according to claim 1 or 3, it is characterised in that：It further include adjusting
Handwheel is saved, the adjusting handle is fixedly connected with the front end of lead screw.
5. the stepless height adjusting mechanism of agricultural machinery seat base according to claim 4, it is characterised in that：It further include limit
Frame, the limitting casing include preceding deckle board, rear framing plate, left frame plate and right deckle board；The lower end of the limitting casing and bottom plate are solid
It is fixed to connect, the second screw rod limiting hole is provided on the preceding deckle board, the rear end of lead screw passes through the second screw rod limiting hole, described
Transmission nut be located in limitting casing；Drive rod limit hole is set on the rear framing plate, and the rear end of drive rod passes through transmission
Bar limit hole is fixedly connected with first connecting rod.
6. the stepless height adjusting mechanism of agricultural machinery seat base according to claim 5, it is characterised in that：It further include drive rod
Resilient cushion, the drive rod resilient cushion are fixedly installed between drive rod and first connecting rod.
7. the stepless height adjusting mechanism of agricultural machinery seat base according to claim 6, it is characterised in that：Two x type brackets
In first support bar upper end be connected by second connecting rod, the second support bar upper end in two x type brackets passes through the
Two connecting rods are connected, and the second support bar lower end in two x type brackets is connected by second connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820473202.1U CN208101767U (en) | 2018-04-04 | 2018-04-04 | A kind of stepless height adjusting mechanism of agricultural machinery seat base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820473202.1U CN208101767U (en) | 2018-04-04 | 2018-04-04 | A kind of stepless height adjusting mechanism of agricultural machinery seat base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208101767U true CN208101767U (en) | 2018-11-16 |
Family
ID=64119738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820473202.1U Active CN208101767U (en) | 2018-04-04 | 2018-04-04 | A kind of stepless height adjusting mechanism of agricultural machinery seat base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208101767U (en) |
-
2018
- 2018-04-04 CN CN201820473202.1U patent/CN208101767U/en active Active
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