CN219044357U - Flexible shaft adjusting steering gear frame assembly - Google Patents
Flexible shaft adjusting steering gear frame assembly Download PDFInfo
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- CN219044357U CN219044357U CN202223523753.XU CN202223523753U CN219044357U CN 219044357 U CN219044357 U CN 219044357U CN 202223523753 U CN202223523753 U CN 202223523753U CN 219044357 U CN219044357 U CN 219044357U
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Abstract
A flexible shaft adjusting steering gear rack assembly relates to the technical field of steering gear mechanical equipment, and comprises an upper bracket and a lower bracket, wherein the top of the upper bracket is fixedly connected with an upper pipe column which is vertically arranged, and an input shaft is coaxially and rotatably arranged in an inner cavity of the upper pipe column; an angle adjusting device is arranged between the upper bracket and the lower bracket and comprises a gas spring, a pressure cylinder of the gas spring is hinged with the upper bracket, and a piston rod of the gas spring is downwards hinged with the lower bracket through a mounting seat; the plectrum is rotatably arranged in the mounting seat; one end of the flexible shaft is fixedly connected with the poking piece, the other end of the flexible shaft is fixedly connected with the top of the connecting plate, the bottom of the connecting plate is hinged with the pedal piece, one end of the pedal piece is rotatably connected with the lower bracket, and elastic reset pieces are arranged between the pedal piece and the lower bracket. The steering angle of the steering wheel can be adjusted by adopting a pedal mode, and the steering wheel is simple in structure, convenient to operate and convenient to adjust; meanwhile, no manual operation is needed, and the safety and humanization of operation are improved.
Description
Technical Field
The utility model relates to the technical field of steering gear mechanical equipment, in particular to a flexible shaft adjusting steering gear rack assembly.
Background
At present, in a steering gear assembly for steering an agricultural machine, an adjustable structure is generally adopted in the steering gear, namely, the inclination angle of an upper pipe column is realized through a front-rear direction adjusting mechanism, so that the steering gear is ensured to be suitable for drivers with different statures and different postures to operate, and the operating comfort is met. When the angle of the traditional steering wheel is adjusted, a driver needs to control the handle by one hand and pull the steering wheel by the other hand, so that the operation is inconvenient and dangerous.
Disclosure of Invention
In view of this, the technical problems to be solved by the present utility model are: the flexible shaft adjusting type steering gear rack assembly is simple in structure, convenient to operate and convenient to adjust, and the steering angle of the steering gear can be adjusted by adopting a pedal mode; meanwhile, no manual operation is needed, and the safety and humanization of operation are improved.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
the flexible shaft adjusting type steering gear rack assembly comprises an upper bracket and a lower bracket hinged with the upper bracket, wherein the top of the upper bracket is fixedly connected with an upper pipe column which is vertically arranged, an input shaft is coaxially and rotatably arranged in an inner cavity of the upper pipe column, and the bottom of the input shaft penetrates through the inner cavity of the upper pipe column downwards and is positioned in the upper bracket; an angle adjusting device is arranged between the upper bracket and the lower bracket, and the angle adjusting device comprises:
the pressure cylinder of the gas spring is hinged with the upper bracket, the piston rod of the gas spring is downwards hinged with the lower bracket through a mounting seat, and the regulating valve of the gas spring is positioned in the mounting seat;
the plectrum is rotatably arranged in the mounting seat and positioned below the regulating valve of the gas spring;
the flexible shaft, the one end of flexible shaft with plectrum fixed connection, the other end of flexible shaft upwards passes reverse downwardly extending behind the mount pad and the top fixed connection of connecting plate, the bottom of connecting plate is articulated with pedal, pedal one end with the lower carriage rotates to be connected and is provided with the elasticity piece that resets each other.
Preferably, the pressure cylinder of the gas spring is hinged with the connecting seat, and the connecting seat is fixedly connected with the upper bracket.
Preferably, the lower bracket is fixedly provided with a supporting plate, and the supporting plate is arranged above the connecting plate.
Preferably, the flexible shaft comprises a stay wire and a flexible pipe sleeved on the outer side of the stay wire; wherein, the liquid crystal display device comprises a liquid crystal display device,
one end of the stay wire is fixedly connected with the poking piece, and the other end of the stay wire penetrates through the supporting plate to be fixedly connected with the top of the connecting plate;
one end of the hose is fixedly connected with the mounting seat, and the other end of the hose is fixedly connected with the supporting plate.
Preferably, the bottom of the input shaft is rotationally connected with the transition shaft through a first universal joint, the bottom of the transition shaft is rotationally connected with the output shaft through a second universal joint, and the output shaft is rotationally arranged on the support plate.
Preferably, the transition shaft comprises a first transition shaft and a second transition shaft, the second transition shaft is coaxially sleeved on the outer side of the first transition shaft and is in spline fit with the first transition shaft, the top of the first transition shaft is rotationally connected with the input shaft through a first universal joint, and the bottom of the second transition shaft is rotationally connected with the output shaft through a second universal joint.
Preferably, the pedal piece is rotatably connected with the lower bracket through a rotating shaft; the elastic reset piece is a torsion spring, the torsion spring is sleeved on the outer side of the rotating shaft, one end of the torsion spring is abutted to the pedal piece, and the other end of the torsion spring is abutted to the lower support.
Preferably, the upper pipe column comprises an inner pipe and an outer pipe coaxially sleeved on the outer side of the inner pipe, and a height adjusting device for simultaneously adjusting the heights of the upper pipe column and the input shaft is arranged between the inner pipe and the outer pipe.
Preferably, the height adjusting device comprises an adjusting handle which is connected to the outer tube in a threaded manner, and the adjusting handle is used for locking or separating the outer tube from the inner tube;
the input shaft comprises a first input shaft and a second input shaft, the first input shaft is coaxially sleeved on the outer side of the second input shaft and is in spline fit with the second input shaft, the top of the first input shaft is rotationally connected with the outer tube, and the bottom of the second input shaft penetrates through the inner cavity of the upper tubular column downwards and is located in the upper support.
Preferably, the inner tube is provided with an axially arranged guide limit groove, the outer tube is provided with a guide post matched with the guide limit groove, and one end of the guide post extends into the inner cavity of the outer tube and is positioned in the guide limit groove.
After the technical scheme is adopted, the utility model has the beneficial effects that:
because the upper bracket and the lower bracket are arranged, the upper bracket is fixedly connected with the upper pipe column, the input shaft is rotatably arranged on the upper pipe column, the angle adjusting device is arranged between the upper bracket and the lower bracket and comprises a gas spring, a poking plate and a flexible shaft, a pressure cylinder of the gas spring is hinged with the upper bracket, a piston rod of the gas spring is hinged with the lower bracket through a mounting seat, the length change of the gas spring can change the angle of an included angle between the upper bracket and the lower bracket, wherein the poking plate is rotatably arranged in the mounting seat, and the poking plate can control an adjusting valve of the gas spring to control the length of the gas spring; one end of the flexible shaft is fixedly connected with the shifting piece, the other end of the flexible shaft is hinged with the pedal piece through the connecting plate, when the pedal piece is stepped down, the flexible shaft can be driven to move through the connecting plate to lift up the shifting piece, the adjusting valve of the air spring is opened through the shifting piece, the length of the air spring is adjusted, the included angle between the upper bracket and the lower bracket is changed, the steering angle of the steering gear is adjusted, and the structure is simple and the operation is convenient; meanwhile, no manual operation is needed, and the safety and humanization of operation are improved.
In the utility model, the upper pipe column comprises the inner pipe and the outer pipe, the height adjusting device for simultaneously adjusting the heights of the upper pipe column and the input shaft is arranged between the inner pipe and the outer pipe, and the height adjusting device is arranged, so that the device can adapt to drivers with different statures and different postures to operate so as to meet the operating comfort.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of a flexible shaft adjustable steering gear frame assembly in one direction according to an embodiment of the present utility model;
FIG. 2 is a schematic view of another orientation of a flexible shaft adjustable steering gear frame assembly according to an embodiment of the present utility model;
FIG. 3 is a front view of FIG. 1;
FIG. 4 is a partial cross-sectional view of FIG. 1;
fig. 5 is an enlarged view of a portion a of fig. 4;
in the figure:
1. an upper bracket; 2. a lower bracket; 3. a pipe column is arranged; 31. an inner tube; 32. an outer tube; 4. an input shaft; 41. a first input shaft; 42. a second input shaft; 5. an angle adjusting device; 51. a gas spring; 52. a mounting base; 53. a pulling piece; 54. a flexible shaft; 541. a pull wire; 542. a hose; 55. a connecting plate; 56. a pedal member; 57. an elastic reset piece; 58. a connecting seat; 59. a support plate; 591. a threading hole; 592. a fixing hole; 61. a first universal joint; 62. a transition shaft; 621. a first transition shaft; 622. a second transition shaft; 63. a second universal joint; 64. an output shaft; 7. a rotating shaft; 8. a height adjusting device; 81. an adjusting handle; 82. a guide limit groove; 83. and a guide post.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 5, the utility model comprises an upper bracket 1 and a lower bracket 2 hinged with the upper bracket 1, wherein the top of the upper bracket 1 is fixedly connected with an upper pipe column 3 which is vertically arranged, an input shaft 4 is coaxially and rotatably arranged in an inner cavity of the upper pipe column 3, and the bottom of the input shaft 4 penetrates through the inner cavity of the upper pipe column 3 downwards and is positioned in the upper bracket 1; an angle adjusting device 5 is arranged between the upper bracket 1 and the lower bracket 2. The angle adjusting device 5 is used for adjusting the included angle between the upper bracket 1 and the lower bracket 2, namely, the upper bracket 1 drives the upper pipe column 3 to adjust the inclination angle of the input shaft 4, so that the steering device is suitable for drivers with different statures and different postures to operate.
Specifically, the angle adjusting device 5 includes a gas spring 51, a mounting seat 52, a pulling piece 53 and a flexible shaft 54, where a pressure cylinder of the gas spring 51 is hinged with the upper bracket 1, preferably, the pressure cylinder of the gas spring 51 is hinged with a connecting seat 58, the connecting seat 58 is fixedly connected with the upper bracket 1, a piston rod of the gas spring 51 is downward hinged with the lower bracket 2 through the mounting seat 52, an adjusting valve of the gas spring 51 is located inside the mounting seat 52, the adjusting valve of the gas spring 51 is also called a switch bolt guide rod, and the length of the body of the gas spring 51 can be adjusted by switching the adjusting valve, so that the structure of the gas spring 51 is the prior art, and the working process and specific adjusting principle thereof will not be repeated herein. Because the pressure cylinder of the air spring 51 is hinged with the upper bracket 1, the piston rod of the air spring 51 is downwards hinged with the lower bracket 2 through the mounting seat 52, and the upper bracket 1 is hinged with the lower bracket 2, when the length of the air spring 51 changes, the upper bracket 1 and the lower bracket 2 are driven to rotate relatively, and the air spring rotates to one side close to a driver, so that the requirement of angle adjustment is met.
The dial 53 is rotatably mounted in the mounting seat 52 and positioned below the regulating valve of the gas spring 51, and when the gas spring 51 is regulated, the dial 53 abuts against the regulating valve of the gas spring 51. One end of a flexible shaft 54 is fixedly connected with a poking piece 53, the other end of the flexible shaft 54 passes through a mounting seat 52 upwards and then reversely extends downwards to be fixedly connected with the top of a connecting plate 55, the bottom of the connecting plate 55 is hinged with a pedal piece 56, one end of the pedal piece 56 is rotatably connected with a lower bracket 2, and an elastic reset piece 57 is arranged between the pedal piece 56 and the lower bracket 2. Preferably, the pedal 56 is rotatably connected with the lower bracket 2 through the rotating shaft 7; the elastic restoring piece 57 is a torsion spring, the torsion spring is sleeved on the outer side of the rotating shaft 7, one end of the torsion spring is abutted against the pedal piece 56, and the other end of the torsion spring is abutted against the lower bracket 2.
In the present utility model, a support plate 59 is fixedly mounted on the lower bracket 2, and the support plate 59 is disposed above the connection plate 55. The flexible shaft 54 comprises a stay 541 and a hose 542 sleeved outside the stay 541; one end of the pull wire 541 is fixedly connected to the pulling piece 53, and the other end of the pull wire 541 passes through the support plate 59 to be fixedly connected to the top of the connection plate 55. One end of the hose 542 is fixedly connected with the mounting seat 52, the other end of the hose 542 is fixedly connected with the supporting plate 59, a threading hole 591 and a fixing hole 592 are formed in the supporting plate 59, the threading hole 591 and the fixing hole 592 are connected and communicated, the aperture of the threading hole 591 is larger than that of the fixing hole 592, a fixing part is arranged at the end of the hose 542, the fixing part moves into the fixing hole 592 through the threading hole 591, and the fixing part is fixedly connected with the supporting plate 59 through a nut.
In the present utility model, the bottom of the input shaft 4 is rotatably connected to the transition shaft 62 through the first universal joint 61, the bottom of the transition shaft 62 is rotatably connected to the output shaft 64 through the second universal joint 63, and the output shaft 64 is rotatably mounted on the support plate 59. Preferably, the transition shaft 62 includes a first transition shaft 621 and a second transition shaft 622, the second transition shaft 622 is coaxially sleeved on the outer side of the first transition shaft 621 and is in spline fit with each other, the top of the first transition shaft 621 is rotationally connected with the input shaft 4 through a first universal joint 61, and the bottom of the second transition shaft 622 is rotationally connected with the output shaft 64 through a second universal joint 63. When the included angle between the upper bracket 1 and the lower bracket 2 is adjusted through the angle adjusting device 5, in order to meet the control requirement on the output shaft 64, a transition shaft 62 is additionally arranged between the input shaft 4 and the output shaft 64, and meanwhile, when the angle is adjusted, the length of the transition shaft 62 can be changed, so that the second transition shaft 622 is coaxially sleeved on the outer side of the first transition shaft 621 and in spline fit with each other, and the length of the transition shaft 62 is changed and the control on the output shaft 64 is met.
The upper pipe column 3 comprises an inner pipe 31 and an outer pipe 32 coaxially sleeved outside the inner pipe 31, and a height adjusting device 8 for simultaneously adjusting the heights of the upper pipe column 3 and the input shaft 4 is arranged between the inner pipe 31 and the outer pipe 32. For drivers of different heights, the height adjustment device 8 can be adapted by changing the heights of the upper pipe column 3 and the input shaft 4, and specifically, the height adjustment device 8 comprises an adjustment handle 81 in threaded connection with the outer pipe 32, and the adjustment handle 81 is used for locking or separating the outer pipe 32 from the inner pipe 31; the input shaft 4 comprises a first input shaft 41 and a second input shaft 42, the first input shaft 41 is coaxially sleeved on the outer side of the second input shaft 42 and is in spline fit with the second input shaft, the top of the first input shaft 41 is rotationally connected with the outer tube 32, and the bottom of the second input shaft 42 penetrates through the inner cavity of the upper tubular column 3 downwards and is located in the upper bracket 1. When the outer tube 32 and the inner tube 31 are separated by the adjusting handle 81, the outer tube 32 can move up and down along the axis to drive the first input shaft 41 to move together, so that the lengths of the upper tubular column 3 and the input shaft 4 are changed.
Preferably, in order to limit the outer tube 32 to move axially only, circumferential rotation cannot occur, the height adjusting effect and stability are improved, the inner tube 31 is provided with an axially arranged guide limit groove 82, the outer tube 32 is provided with a guide post 83 matched with the guide limit groove 82, and one end of the guide post 83 extends into the inner cavity of the outer tube 32 and is located inside the guide limit groove 82.
The utility model comprises two actions of angle adjustment and height adjustment when in use. When the angle is adjusted, a driver steps on the pedal 56, pulls the pull wire 541 through the connecting plate 55, one end of the pull wire 541 pulls the pulling piece 53 to move upwards to abut against the adjusting valve of the gas spring 51, so that the length of the gas spring 51 is changed, the driver controls the input shaft 4, the upper pipe column 3 and the upper bracket 1 to rotate to the side close to the driver through the steering wheel to perform the angle adjustment, after the angle adjustment is finished, the pedal 56 is loosened, the pedal 56 is reset under the elastic action of the elastic reset piece 57, the pull wire 541 does not lift and move the pulling piece 53 any more, the pulling piece 53 is reset to stop abutting against the adjusting valve of the gas spring 51, and the gas spring 51 is locked in the current state, so that the angle adjustment is finished; when the height adjustment is performed, a driver controls the outer tube 32 and the inner tube 31 to be in a separated state by screwing the adjusting handle 81, pulls the first input shaft 41 through the steering wheel to drive the outer tube 32 to move upwards to one side close to the driver at the same time, changes the heights of the input shaft 4 and the upper tube column 3, and after the driver pulls the adjusting handle to a proper position, reversely screws the adjusting handle 81 to control the outer tube 32 and the inner tube 31 to be in a locking state, and the outer tube 32 and the inner tube 31 are fixed to complete the height adjustment.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The flexible shaft adjusting type steering gear rack assembly comprises an upper bracket and a lower bracket hinged with the upper bracket, wherein the top of the upper bracket is fixedly connected with an upper pipe column which is vertically arranged, an input shaft is coaxially and rotatably arranged in an inner cavity of the upper pipe column, and the bottom of the input shaft penetrates through the inner cavity of the upper pipe column downwards and is positioned in the upper bracket; the device is characterized in that an angle adjusting device is arranged between the upper bracket and the lower bracket, and the angle adjusting device comprises:
the pressure cylinder of the gas spring is hinged with the upper bracket, the piston rod of the gas spring is downwards hinged with the lower bracket through a mounting seat, and the regulating valve of the gas spring is positioned in the mounting seat;
the plectrum is rotatably arranged in the mounting seat and positioned below the regulating valve of the gas spring;
the flexible shaft, the one end of flexible shaft with plectrum fixed connection, the other end of flexible shaft upwards passes reverse downwardly extending behind the mount pad and the top fixed connection of connecting plate, the bottom of connecting plate is articulated with pedal, pedal one end with the lower carriage rotates to be connected and is provided with the elasticity piece that resets each other.
2. The flexible shaft adjustable steering gear rack assembly of claim 1, wherein the pressure cylinder of the gas spring is hinged to a connecting seat, and the connecting seat is fixedly connected with the upper bracket.
3. The flexible shaft-adjustable steering gear rack assembly of claim 1, wherein a support plate is fixedly mounted on the lower bracket and is disposed above the connecting plate.
4. The flexible shaft-adjustable steering gear rack assembly according to claim 3, wherein the flexible shaft comprises a stay wire and a flexible tube sleeved outside the stay wire; wherein, the liquid crystal display device comprises a liquid crystal display device,
one end of the stay wire is fixedly connected with the poking piece, and the other end of the stay wire penetrates through the supporting plate to be fixedly connected with the top of the connecting plate;
one end of the hose is fixedly connected with the mounting seat, and the other end of the hose is fixedly connected with the supporting plate.
5. A flexible shaft adjustment type steering gear frame assembly as claimed in claim 3, wherein the bottom of the input shaft is rotatably connected with the transition shaft through a first universal joint, the bottom of the transition shaft is rotatably connected with the output shaft through a second universal joint, and the output shaft is rotatably mounted on the support plate.
6. The flexible shaft adjustable steering gear rack assembly of claim 5, wherein the transition shaft comprises a first transition shaft and a second transition shaft, the second transition shaft is coaxially sleeved on the outer side of the first transition shaft and is in spline fit with each other, the top of the first transition shaft is rotatably connected with the input shaft through the first universal joint, and the bottom of the second transition shaft is rotatably connected with the output shaft through the second universal joint.
7. The flexible shaft-adjustable steering gear rack assembly of claim 1, wherein the pedal is rotatably connected with the lower bracket through a rotating shaft; the elastic reset piece is a torsion spring, the torsion spring is sleeved on the outer side of the rotating shaft, one end of the torsion spring is abutted to the pedal piece, and the other end of the torsion spring is abutted to the lower support.
8. The flexible shaft-adjustable steering gear frame assembly according to claim 1, wherein the upper pipe column comprises an inner pipe and an outer pipe coaxially sleeved outside the inner pipe, and a height adjusting device for simultaneously adjusting the heights of the upper pipe column and the input shaft is arranged between the inner pipe and the outer pipe.
9. The flexible shaft adjustable steering gear rack assembly of claim 8, wherein the height adjustment device comprises an adjustment handle threadably connected to the outer tube, the adjustment handle for locking or separating the outer tube from the inner tube;
the input shaft comprises a first input shaft and a second input shaft, the first input shaft is coaxially sleeved on the outer side of the second input shaft and is in spline fit with the second input shaft, the top of the first input shaft is rotationally connected with the outer tube, and the bottom of the second input shaft penetrates through the inner cavity of the upper tubular column downwards and is located in the upper support.
10. The flexible shaft-adjustable steering gear rack assembly according to claim 8, wherein the inner tube is provided with an axially arranged guide limit groove, the outer tube is provided with a guide post matched with the guide limit groove, and one end of the guide post extends into the inner cavity of the outer tube and is positioned in the guide limit groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223523753.XU CN219044357U (en) | 2022-12-20 | 2022-12-20 | Flexible shaft adjusting steering gear frame assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223523753.XU CN219044357U (en) | 2022-12-20 | 2022-12-20 | Flexible shaft adjusting steering gear frame assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219044357U true CN219044357U (en) | 2023-05-19 |
Family
ID=86319901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223523753.XU Active CN219044357U (en) | 2022-12-20 | 2022-12-20 | Flexible shaft adjusting steering gear frame assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219044357U (en) |
-
2022
- 2022-12-20 CN CN202223523753.XU patent/CN219044357U/en active Active
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