CN220430273U - Novel variable speed steering gear - Google Patents
Novel variable speed steering gear Download PDFInfo
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- CN220430273U CN220430273U CN202322037193.5U CN202322037193U CN220430273U CN 220430273 U CN220430273 U CN 220430273U CN 202322037193 U CN202322037193 U CN 202322037193U CN 220430273 U CN220430273 U CN 220430273U
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- steering
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- 230000005540 biological transmission Effects 0.000 claims abstract description 53
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The utility model particularly relates to a novel variable speed steering gear, which comprises a rotating disc, a variable transmission ratio steering gear, a variable transmission sliding block shell and two wheel flange which are symmetrically arranged, wherein the variable transmission ratio steering gear comprises a bevel gear shell, a gear rack shell and a bevel gear cover, a rack and a bevel gear shaft are respectively inserted and rotatably arranged in the gear rack shell and the bevel gear cover, a bevel gear III and a cylindrical bevel gear meshed with the rack are rotatably arranged in the bevel gear shell, a bevel gear IV meshed with the bevel gear III is fixedly arranged at the outer end of the cylindrical bevel gear, and a bevel gear I meshed with the bevel gear III and a bevel gear II meshed with the bevel gear IV are respectively fixed at the outer end of the bevel gear shaft.
Description
Technical Field
The utility model relates to the technical field of modern traffic, in particular to a novel variable speed steering gear.
Background
A recirculating ball steering gear is a transmission for an automotive steering system, however, under some special steering demands (such as a sharp turn or a brake at landing), it is necessary to change the direction of the steering of the wheels or to control the speed of the vehicle rapidly, and at this time, if the variable transmission ratio range of the eccentric sector is small, such demands may not be satisfied, resulting in untimely response or inflexibility of control of the steering system. Electronic gear steering technology. According to the technology, the electronic equipment is introduced into the steering system to control the friction coefficient of the transmission system and the required steering torque, so that the change of the transmission ratio is realized, and the steering requirements under different speeds and road conditions are met.
The variable gear steering technology is an improvement on the traditional gear steering technology, and the transmission ratio is changed by changing the opening angles and the shapes of the central shaft and the external gear, so that the steering change is realized, and the defects of the variable gear steering technology including high manufacturing cost and high maintenance cost mainly include two aspects:
1. expensive to sell: due to the high cost of electronic devices, electronic gear diverters are expensive, and some price-sensitive vehicle models may forgo the use of this technology.
2. Maintenance difficulty: the electronic gear steering gear internally comprises complex electronic and sensor technologies, after faults occur, the maintenance difficulty is higher than that of other steering gear technologies, the whole steering system module possibly needs to be replaced, and the maintenance cost is higher;
pinion-and-rack steering gear with a non-variable gear ratio design has the disadvantages:
1. the adaptability is poor: the gear ratio of the rack-and-pinion steering gear without the variable gear ratio design is unchanged, and the numerical simulation, test and real road condition during the early design are more limited. The steering force can also be greatly changed due to different vehicle motion states, and better driving experience cannot be provided if the transmission ratio is unchanged.
2. The low-speed steering effect is poor: when the vehicle speed is low, the steering torque demand can be correspondingly increased, and if the variable transmission ratio design is not adopted, the output effect of different steering torques is not obvious enough, and the operation feeling of a driver can be influenced.
3. Uneven turning: because the steering gear is not designed with a variable transmission ratio, the steering width cannot be effectively adjusted, and the steering width can possibly fluctuate when entering and leaving a turning area, so that potential safety hazards are increased;
to this end, we propose a new type of variable speed steering gear.
Disclosure of Invention
The present utility model is directed to a novel variable speed steering gear to solve the above-mentioned problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a novel variable speed steering gear, includes rolling disc, variable transmission ratio steering gear, variable transmission slider casing and two wheel flange that mutual symmetry set up, variable transmission ratio steering gear includes bevel gear shell, rack and pinion shell and bevel gear lid, peg graft respectively in rack and the bevel gear lid and rotate and install rack and bevel gear axle, bevel gear three and with rack engagement's cylindrical helical gear are installed in the bevel gear shell in the rotation, bevel gear three slope rotates and installs in the bevel gear shell, cylindrical helical gear outer end is fixed with bevel gear three meshing's bevel gear four, bevel gear shaft outer end is fixed with respectively with bevel gear three meshing's bevel gear one and with bevel gear four meshing's bevel gear two.
Preferably, the front end of the rotating disc is fixedly provided with a steering column fixedly connected with the outer end of the bevel gear shaft, the inner end faces of the two wheel flange are fixedly provided with wheel upright posts, the inner end faces of the two wheel upright posts are respectively and rotatably provided with a steering pull rod rotatably connected with the outer end of the rack, and two sides of the outer end of the rack are respectively and fixedly provided with limiting blocks rotatably connected with the inner ends of the two steering pull rods.
Preferably, a sliding bearing support is rotatably arranged on the periphery of the steering column, the sliding bearing support is slidably arranged at the front end of the variable transmission sliding block shell, and a sliding block matched with the sliding bearing support is rotatably arranged in the variable transmission sliding block shell.
Preferably, the lower end of the bevel gear shell is fixedly connected with the upper end of the gear rack shell, the bevel gear cover is inserted and arranged at the rear end of the bevel gear shell, and the bevel gear cover is matched with the gear rack shell.
Preferably, rack shells sleeved on the outer sides of the racks are arranged on two sides of the rack shells, a lower support is arranged on the outer sides of the two rack shells, and an upper support is fixedly arranged on the rear sides of the two lower supports through bolts.
Compared with the prior art, the utility model has the beneficial effects that:
the novel variable speed steering gear can be applied to a carrier vehicle, and different transmission ratios are used when the vehicle is fully loaded and unloaded, for example, the steering is not excessively sensitive due to safety consideration, the portability during steering is pursued, a second set of transmission ratio can be used, the angular transmission ratio is 70%, the force transmission ratio is 60%, and the full-load steering requirement can be completely met. The steering device can improve the angular transmission ratio during no-load, so that the steering is sensitive, the weight of the automobile is not too high during no-load, the force transmission ratio can be properly reduced, and the road feel of a driver is increased.
The novel variable speed steering gear is different from the traditional steering gear which uses rack and pinion transmission, the variable speed steering gear uses bevel gears to be meshed with the bevel gears for transmission, so that steering is realized, meanwhile, the variable speed steering gear has multiple sets of transmission ratios, real-time conversion can be realized, vehicles are helped to pass through various complex road conditions, the safety and trafficability of driving of the vehicles are improved, the form of the variable transmission ratio is purely mechanized, the manufacturing cost is low, the novel variable speed steering gear is firm and reliable, the service life is long, the transmission efficiency and the bearing capacity of the steering gear are effectively improved by using the bevel gears for transmission, and the variable speed steering gear can be applied to heavy-duty trucks.
Drawings
FIG. 1 is a schematic view of the overall external structure of the present utility model;
FIG. 2 is a schematic diagram of the internal structure of a variable transmission slider housing according to the present utility model;
FIG. 3 is a schematic diagram of the external configuration of a variable ratio steering gear of the present utility model;
FIG. 4 is a schematic illustration of the external split architecture at a variable ratio diverter of the present utility model;
FIG. 5 is a schematic view of the external gear engagement structure at a spur helical gear of the present utility model;
fig. 6 is a schematic view of the internal structure of the bevel gear housing of the present utility model.
In the figure:
1. a rotating disc; 11. a steering column; 12. a wheel flange; 13. wheel side stand columns; 14. a steering tie rod;
2. a variable transmission slide block shell; 21. a sliding bearing support; 22. a slide block;
3. a variable ratio diverter; 30. a bevel gear cover; 31. a bevel gear housing; 32. a rack and pinion housing; 33. a rack; 34. a rack housing; 35. a lower support; 36. an upper support; 37. a limiting block;
4. cylindrical helical gears; 41. bevel gears IV; 42. bevel gears II; 43. bevel gears I; 44. a bevel gear shaft; 45. and a bevel gear III.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-6, the present utility model provides a technical solution: the utility model provides a novel variable speed steering gear, including rolling disc 1, become the transmission ratio steering gear 3, become the rim flange 12 that the transmission slider casing 2 set up with two mutual symmetries, become the transmission ratio steering gear 3 and include the gear housing 31, rack and pinion shell 32 and bevel gear lid 30, rack 33 and bevel gear shaft 44 are installed in the grafting rotation in rack and pinion shell 32 and the bevel gear lid 30 respectively, bevel gear housing 31 internal rotation is installed bevel gear three 45 and is meshed with rack 33's cylinder helical gear 4, bevel gear three 45 slope rotation is installed in gear housing 31, cylinder helical gear 4 outer end is fixed with the bevel gear four 41 with bevel gear three 45 meshing, bevel gear shaft 44 outer end is fixed with the bevel gear one 43 with bevel gear three 45 meshing and the bevel gear two 42 with bevel gear four 41 meshing respectively.
Working principle: the transmission ratio is changed by meshing different bevel gears, so that the transmission ratio can be applied to a carrier vehicle, and different transmission ratios are used when the carrier vehicle is fully loaded and unloaded;
for safety reasons, if the steering is not excessively sensitive, the portability during steering is required, a second set of transmission ratio can be used, the positions of the first bevel gear 43 and the second bevel gear 42 can be adjusted by adjusting the position of the rotating disc 1 and matching with the bevel gear shaft 44, so that the first bevel gear 43 is meshed with the third bevel gear 45, the second bevel gear 42 is disengaged from the fourth bevel gear 41, and further, when the bevel gear shaft 44 is rotated through the rotating disc 1, the rack 33 is driven to move left and right through the meshing effect between the first bevel gear 43 and the third bevel gear 45, between the third bevel gear 45 and the fourth bevel gear 41 and between the cylindrical helical gear 4 and the rack 33, and the two-side wheel flange 12 is matched, so that the effect of adjusting the steering of wheels is achieved, at the moment, the angular transmission ratio is 70%, the force transmission ratio is 60%, the steering is slower, but the steering is lighter, and the full-load steering requirement can be completely met;
the steering device has the advantages that the angular transmission ratio can be increased when the steering is sensitive, the weight of the automobile is not too high when the automobile is in idle load, the force transmission ratio can be properly reduced, the road feel of a driver is increased, the first set of transmission ratio can be used, the positions of the first bevel gear 43 and the second bevel gear 42 can be adjusted by adjusting the position of the rotating disc 1 and matching with the bevel gear shaft 44, the first bevel gear 43 and the second bevel gear 42 are disengaged from the third bevel gear 45, the second bevel gear 42 is meshed with the fourth bevel gear 41, and further, when the bevel gear shaft 44 is rotated through the rotating disc 1, the toothed rack 33 is driven to move left and right through the meshing effect between the second bevel gear 42 and the fourth bevel gear 41 and between the cylindrical helical gear 4 and the toothed rack 33, the road feel of the two sides is matched, the effect of adjusting the steering of wheels is achieved, at the moment, the angular transmission ratio is 85%, the steering wheel rotates by 60 DEG, the outer wheel angle 40 DEG inner wheel angle is 58 DEG, the force transmission ratio is 80% steering resistance/steering force, the steering is sensitive, but the steering is relatively laborious, and the idle steering requirement can be completely met.
Specifically, steering column 11 fixedly connected with the outer end of bevel gear shaft 44 is fixed to the front end of rotating disk 1, wheel side stand column 13 is fixed to the inner end face of two wheel side flanges 12, steering tie rods 14 rotatably connected with the outer ends of racks 33 are rotatably installed on the inner end faces of two wheel side stand columns 13 respectively, limiting blocks 37 rotatably connected with the inner ends of two steering tie rods 14 are fixedly installed on two sides of the outer ends of racks 33 respectively, sliding bearing support 21 is rotatably installed on the periphery of steering column 11, sliding bearing support 21 is slidably installed on the front end of variable transmission sliding block shell 2, and sliding blocks 22 matched with sliding bearing support 21 are rotatably installed in variable transmission sliding block shell 2.
The steering rod 14 is arranged, limiting blocks 37 at two sides of the rack 33 are matched, when the rack 33 moves left and right, the wheel flange 12 can be driven to rotate, the effect of adjusting the steering of wheels is achieved, when the positions of the bevel gear I43 and the bevel gear II 42 are adjusted, the position of the sliding bearing support 21 can be adjusted in the variable transmission slide block shell 2, the position of the sliding block 22 can be adjusted in the variable transmission slide block shell 2, when the sliding bearing support 21 is positioned at the lower side, the sliding block 22 is attached to the rear end of the sliding bearing support 21, the sliding bearing support 21 can be positioned, when the sliding bearing support 21 is positioned at the upper side, the front end of the sliding block 22 is inserted into a positioning hole at the lower end of the sliding bearing support 21, the effect of positioning the sliding bearing support 21 can be achieved, the steering column 11 can be positioned, and the steering column 11 is prevented from loosening.
It should be noted that, the lower end of the bevel gear housing 31 is fixedly connected with the upper end of the gear rack housing 32, the bevel gear cover 30 is inserted and mounted at the rear end of the bevel gear housing 31, and the bevel gear cover 30 is matched with the gear rack housing 32.
The bevel gear housing 31, the bevel gear cover 30 and the rack-and-pinion housing 32 are provided, so that the movement direction of each gear can be limited, and each gear can be protected.
It should be noted that, rack shells 34 sleeved on the outer sides of racks 33 are arranged on two sides of the rack shell 32, lower supports 35 are arranged on the outer sides of the two rack shells 34, and upper supports 36 are fixedly arranged on the rear sides of the two lower supports 35 through bolts.
The lower support 35 and the upper support 36 are arranged, and the gear rack shell 32 and the rack shell 34 are matched, so that the movement direction of the rack 33 can be limited, the rack 33 can be protected, and the abrasion of the rack 33 is avoided.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a novel variable speed steering gear, includes rolling disc (1), becomes transmission ratio steering gear (3), becomes transmission slider casing (2) and two wheel limit flanges (12) that mutual symmetry set up, its characterized in that: the variable transmission ratio steering gear (3) comprises a bevel gear shell (31), a gear rack shell (32) and a bevel gear cover (30), wherein a rack (33) and a bevel gear shaft (44) are respectively inserted and rotated in the gear rack shell (32) and the bevel gear cover (30), a bevel gear III (45) and a cylindrical bevel gear (4) meshed with the rack (33) are rotatably installed in the bevel gear shell (31), the bevel gear III (45) is obliquely and rotatably installed in the bevel gear shell (31), a bevel gear IV (41) meshed with the bevel gear III (45) is fixed at the outer end of the cylindrical bevel gear (4), and a bevel gear I (43) meshed with the bevel gear III (45) and a bevel gear II (42) meshed with the bevel gear IV (41) are respectively fixed at the outer end of the bevel gear shaft (44).
2. A novel variable speed diverter as claimed in claim 1, wherein: steering column (11) fixedly connected with the outer end of bevel gear shaft (44) is fixed at the front end of rotating disc (1), two wheel limit flange (12) inner end face is fixed with wheel limit stand (13), two wheel limit stand (13) inner end face rotates respectively installs steering rod (14) rotationally connected with rack (33), rack (33) outer end both sides are fixed respectively stopper (37) rotationally connected with the inner of two steering rod (14).
3. A novel variable speed diverter as claimed in claim 2, wherein: the steering column (11) is rotationally provided with a sliding bearing support (21), the sliding bearing support (21) is slidably arranged at the front end of the variable transmission sliding block shell (2), and a sliding block (22) matched with the sliding bearing support (21) is rotationally arranged in the variable transmission sliding block shell (2).
4. A novel variable speed diverter as claimed in claim 1, wherein: the lower end of the bevel gear shell (31) is fixedly connected with the upper end of the gear rack shell (32), the bevel gear cover (30) is inserted and installed at the rear end of the bevel gear shell (31), and the bevel gear cover (30) is matched with the gear rack shell (32).
5. A novel variable speed diverter as claimed in claim 1, wherein: the rack and pinion shell (32) both sides are equipped with rack shell (34) of cover in rack (33) outside, and two the rack shell (34) outside is equipped with lower support (35), two lower support (35) rear side is through bolt fixed mounting has upper support (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322037193.5U CN220430273U (en) | 2023-08-01 | 2023-08-01 | Novel variable speed steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322037193.5U CN220430273U (en) | 2023-08-01 | 2023-08-01 | Novel variable speed steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220430273U true CN220430273U (en) | 2024-02-02 |
Family
ID=89693981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322037193.5U Active CN220430273U (en) | 2023-08-01 | 2023-08-01 | Novel variable speed steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220430273U (en) |
-
2023
- 2023-08-01 CN CN202322037193.5U patent/CN220430273U/en active Active
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