CN113044104B - Wheel type front axle steering adjusting method and steering adjusting mechanism thereof - Google Patents
Wheel type front axle steering adjusting method and steering adjusting mechanism thereof Download PDFInfo
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- CN113044104B CN113044104B CN201911390004.4A CN201911390004A CN113044104B CN 113044104 B CN113044104 B CN 113044104B CN 201911390004 A CN201911390004 A CN 201911390004A CN 113044104 B CN113044104 B CN 113044104B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/003—Steerable axles
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- Combustion & Propulsion (AREA)
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- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The invention relates to the field of wheeled vehicles or wheeled robots, in particular to a steering adjusting method and a steering adjusting mechanism of a wheeled front axle; the zero-finding operation is carried out by installing the limiting block, the movement of the left goat horn and the right goat horn is limited, the zero-finding operation is carried out by straightening, meanwhile, the adjustment pad is additionally arranged between the knuckle bearing and the other end of the connecting rod for assembly, so that the theoretical design value of the Ackermann trapezoid is maximally approached, and then the limiting block is detached for installation again for limiting the steering angle; the invention can accurately determine and increase the number of the adjusting pads on the basis of no measurement, maximally approaches the theoretical design value of the Ackermann trapezoid side length, greatly shortens the assembly time and improves the steering performance.
Description
Technical Field
The invention relates to the field of wheeled vehicles or wheeled robots, in particular to a steering adjusting method and a steering adjusting mechanism of a wheeled front axle.
Background
Most of steering structures of existing wheel-type vehicles or wheel-type robots adopt the Ackermann trapezoid principle, but due to machining tolerance of parts, complete theoretical design values of the Ackermann trapezoid are difficult to achieve.
At present, the theoretical design value of the ackermann trapezoid needs to be approached to the maximum extent in the assembling process, accurate measurement is generally needed for accurate positioning, the assembling difficulty is high, and small errors may occur to influence the steering performance of the wheeled vehicle or the wheeled robot.
Disclosure of Invention
The invention mainly solves the technical problem of providing a wheel type front axle steering adjusting method and a steering adjusting mechanism thereof, which can accurately determine and increase the number of adjusting pads on the basis of no measurement, maximally approach the theoretical design value of the side length of an Ackermann trapezoid, greatly shorten the assembly time and improve the steering performance.
In order to solve the technical problems, the invention adopts a technical scheme that: a method for adjusting the steering of a wheeled front axle is provided, wherein the method comprises the following steps:
step S1, arranging a first threaded hole, a second threaded hole and a third threaded hole in the inner side walls of the left steering end and the right steering end of the front axle;
step S2, arranging a first mounting hole, a second mounting hole and a third mounting hole on a limiting block, and respectively connecting the second mounting hole and the third mounting hole with a first threaded hole and a second threaded hole through two screws so as to install the limiting block at both the left steering end and the right steering end of the front axle;
step S3, the upper end and the lower end of the left steering end and the right steering end of the front axle are respectively in shaft connection with the left goat horn and the right goat horn; the left claw and the right claw are respectively clamped at the left steering end and the right steering end of the front axle through the limiting blocks;
step S4, the middle of the front axle is connected with a steering gear, two sides of the steering gear are both connected with a knuckle bearing, the left goat 'S horn and the right goat' S horn are both connected with one end of a connecting rod through a shaft, and an adjusting pad is added between the knuckle bearing and the other end of the connecting rod until the connecting rod 6 is concentric with the holes of the left goat 'S horn 2 and the right goat' S horn 3;
and S5, detaching the two limiting blocks from the left steering end and the right steering end of the front axle respectively, and connecting the first mounting hole, the second mounting hole and the third mounting hole to the first threaded hole, the second threaded hole and the third threaded hole respectively through three screws so as to re-install the two limiting blocks on the left steering end and the right steering end of the front axle.
As an improvement of the invention, the left goat's horn and the right goat's horn are both provided with connecting handles, the connecting handles are provided with first shaft holes, the connecting rod is provided with second shaft holes, and the first shaft holes and the second shaft holes are connected through pin shafts.
As a further improvement of the invention, the upper and lower ends of the left claw and the right claw are respectively provided with a rotating shaft hole, the left steering end and the right steering end of the front axle are respectively provided with a rotating shaft, and the rotating shafts are in shaft connection with the rotating shaft holes.
As a further improvement of the invention, the left goat's horn and the right goat's horn are respectively coupled with a wheel.
As a further improvement of the invention, the limiting block is provided with a limiting handle.
A wheel type front axle steering adjusting mechanism is connected to a front axle and comprises a left claw, a right claw, a limiting block, a steering gear, a connecting rod and a joint bearing; the inner side walls of the left steering end and the right steering end of the front axle are respectively provided with a first threaded hole, a second threaded hole and a third threaded hole, the inner side walls of the left steering end and the right steering end of the front axle are respectively connected with a limiting block, the upper end and the lower end of the left steering end and the right steering end of the front axle are respectively in shaft connection with the left claw and the right claw, and the left claw and the right claw are respectively in shaft connection with a wheel; the middle of the front axle is connected with the steering gear, two sides of the steering gear are connected with the knuckle bearing, the left goat's horn and the right goat's horn are connected with one end of the connecting rod through shafts, and an adjusting pad can be added between the knuckle bearing and the other end of the connecting rod.
As an improvement of the invention, the limiting block is provided with a first mounting hole, a second mounting hole and a third mounting hole.
As a further improvement of the invention, the left cleat and the right cleat are both provided with connecting handles, the connecting handles are provided with first shaft holes, the connecting rod is provided with second shaft holes, and the first shaft holes and the second shaft holes are connected through pin shafts.
As a further improvement of the invention, the limiting block is provided with a limiting handle.
As a further improvement of the invention, the upper and lower ends of the left claw and the right claw are respectively provided with a rotating shaft hole, the left steering end and the right steering end of the front axle are respectively provided with a rotating shaft, and the rotating shafts are in shaft connection with the rotating shaft holes.
The invention has the beneficial effects that: compared with the prior art, the zero searching is carried out through the installation of the limiting block, the movement of the left goat horn and the right goat horn is limited, the zero searching operation is carried out through the centering, meanwhile, the adjusting pad is added between the knuckle bearing and the other end of the connecting rod for assembly, so that the theoretical design value of the Ackermann trapezoid is approached to the maximum extent, and then the limiting block is detached for installation again for limiting the steering angle; the invention can accurately determine and increase the number of the adjusting pads on the basis of no measurement, maximally approaches the theoretical design value of the Ackermann trapezoid side length, greatly shortens the assembly time and improves the steering performance.
Drawings
FIG. 1 is a block diagram illustrating the steps of a method of adjusting the steering of a wheeled front axle according to the present invention;
FIG. 2 is a schematic view illustrating an installation of the stopper in step S2 according to the present invention;
FIG. 3 is a schematic view illustrating the installation of the limiting block in step S5 according to the present invention;
FIG. 4 is a schematic structural diagram of a wheel type front axle steering adjusting mechanism of the present invention;
FIG. 5 is an exploded schematic view of the wheeled front axle steering adjustment mechanism of the present invention;
FIG. 6 is a front view of the wheeled front axle steering mechanism of the present invention (shown with an Ackerman trapezoid inside);
FIG. 7 is a partial schematic view of the left steering end of the front axle of the present invention;
FIG. 8 is a schematic structural diagram of a limiting block of the present invention;
reference numerals: 1-front axle, 11-left steering end, 12-right steering end, 13-first threaded hole, 14-second threaded hole, 15-third threaded hole, 16-rotating shaft, 2-left claw, 21-connecting handle, 22-first shaft hole, 3-right claw, 31-rotating shaft hole, 4-limiting block, 41-first mounting hole, 42-second mounting hole, 43-third mounting hole, 44-limiting handle, 5-steering gear, 6-connecting rod, 61-second shaft hole, 7-knuckle bearing, 8-pin shaft and 9-wheel.
Detailed Description
As shown in fig. 1 to 8, a method for adjusting steering of a wheeled front axle according to the present invention includes the steps of:
step S1, arranging a first threaded hole 13, a second threaded hole 14 and a third threaded hole 15 at the inner side walls of the left steering end 11 and the right steering end 12 of the front axle;
step S2, arranging a first mounting hole 41, a second mounting hole 42 and a third mounting hole 43 on the limiting block 4, and respectively connecting the second mounting hole 42 and the third mounting hole 43 with the first threaded hole 13 and the second threaded hole 14 through two screws so as to respectively mount the limiting block 4 on the left steering end 11 and the right steering end 12 of the front axle;
specifically, as shown in fig. 2, the position of one threaded hole is moved upwards by the limiting block 4, so that the second mounting hole 42 and the third mounting hole 43 are respectively connected with the first threaded hole 13 and the second threaded hole 14, the third threaded hole 15 is vacant, and meanwhile, the first mounting hole 41 is also a vacant non-mounting screw, so that the limiting block 4 can respectively clamp the left goat's horn 2 and the right goat's horn 3 at the left steering end 11 and the right steering end 12 and cannot rotate;
step S3, respectively coupling the upper and lower ends of the left steering end 11 and the right steering end 12 of the front axle with the left cavel 2 and the right cavel 3; the left claw 2 and the right claw 3 are respectively clamped at the left steering end 11 and the right steering end 12 of the front axle 1 through the limiting blocks 4;
step S4, the middle of the front axle 1 is connected with a steering gear 5, two sides of the steering gear 5 are both connected with a knuckle bearing 7, the left goat 'S horn 2 and the right goat' S horn 3 are both connected with one end of a connecting rod 6 through a shaft, and an adjusting pad is additionally arranged between the knuckle bearing 7 and the other end of the connecting rod 6. Until the connecting rod 6 is concentric with the holes of the left cavum 2 and the right cavum 3 (the second shaft hole 61 is concentric with the first shaft hole 22);
step S5, detaching the two limit blocks 4 from the left steering end 11 and the right steering end 12 of the front axle 1, respectively, connecting the first mounting hole 41, the second mounting hole 42, and the third mounting hole 43 to the first threaded hole 13, the second threaded hole 14, and the third threaded hole 15 by three screws, respectively, and then installing the two limit blocks 4 on the left steering end 11 and the right steering end 12 of the front axle 1.
As shown in fig. 5, the first mounting hole 41, the second mounting hole 42 and the third mounting hole 43 are respectively connected to the first threaded hole 13, the second threaded hole 14 and the third threaded hole 15 in a butt joint manner, at this time, the left claw 2 and the right claw 3 can rotate, and when the left claw collides with the limiting block 4, the rotation is stopped, namely, the limiting block is limited.
In the invention, firstly, zero searching is carried out through the installation of the limiting block 4, the rotation of the left goat's horn 2 and the right goat's horn 3 is limited, zero searching operation is carried out, meanwhile, an adjusting pad is added between the knuckle bearing 7 and the other end of the connecting rod 6 for assembly, so that the invention is close to the theoretical design value of an ackermann trapezoid to the maximum extent, and then the limiting block 4 is detached and installed again for limiting the steering angle; the invention can accurately determine and increase the number of the adjusting pads on the basis of no measurement, maximally approaches the theoretical design value of the Ackermann trapezoid side length, greatly shortens the assembly time and improves the steering performance.
Wherein, all be provided with the connection handle 21 on left side goat's horn 2, the right side goat's horn 3, be provided with first shaft hole 22 on the connection handle 21, be provided with second shaft hole 61 on the connecting rod 6, be connected first shaft hole 22 and second shaft hole 61 through round pin axle 8, be convenient for connecting rod 6 and left side goat's horn 2, the connection of right side goat's horn 3. The upper and lower both ends of left side goat's horn 2, right side goat's horn 3 all are provided with pivot hole 31, and the left side of front axle 1 turns to end 11 and the end 12 that turns to right and all is provided with pivot 16, and pivot 16 carries out the coupling with pivot hole 31, the rotation of the left side goat's horn 2 of being convenient for, right side goat's horn 3.
In the invention, the left goat's horn 2 and the right goat's horn 3 are respectively coupled with a wheel 9; the limiting block 4 is provided with a limiting handle 44 for limiting the rotation angles of the left goat's horn 2 and the right goat's horn 3.
As shown in fig. 1 to 6, the present invention provides a flow of a specific embodiment of a wheel-type front axle steering adjusting method: the limiting blocks 4 move upwards by the distance of 1 threaded hole, one limiting block 4 is attached to the left steering end 11 and the left goat's horn 2 of the front axle 1, the other limiting block 4 is attached to the right steering end 12 and the right goat's horn 3 of the front axle 1, so that the left goat's horn 2 and the right goat's horn 3 are limited by the limiting blocks 1 in rotation, the left wheel and the right wheel are positioned right ahead at the moment, namely zero positions, and the operation is zero searching operation; as shown in fig. 6, since the left horn 2 and the right horn 3 cannot rotate, the length and direction of the two waists corresponding to the ackermann trapezoid are completely determined (as indicated by the dotted line in fig. 6), and the length of the upper bottom of the trapezoid is determined by the front axle 1, so that the shape of the trapezoid is uniquely determined; the length of the lower bottom edge of the ackermann trapezoid is determined by the steering gear 5, the knuckle bearing 7 and the connecting rod 6 together, the steering gear, the knuckle bearing and the connecting rod are connected by screw threads, the total length of the series connection is the length of the lower bottom edge of the trapezoid, and the length of the lower bottom edge cannot be completely consistent with a theoretical value due to the fact that machining tolerance exists in parts, so that the distance between the knuckle bearing 7 and the connecting rod 6 needs to be adjusted, and an adjusting pad is added or reduced between the knuckle bearing 7 and the connecting rod 6; because the trapezoid is completely determined, the thickness of the adjusting pad can be increased or decreased as long as the connecting rod 6 is concentric with the holes of the left cavel 2 and the right cavel 3 (the second shaft hole 61 is concentric with the first shaft hole 22), and finally, the pin shaft 8 is installed and fixed; and finally, limiting the steering angle, detaching the limiting block 4, and correspondingly connecting the first mounting hole 41, the second mounting hole 42 and the third mounting hole 43 to the first threaded hole 13, the second threaded hole 14 and the third threaded hole 15 through three screws, so that the limiting block 4 is mounted on the front axle 1 and is arranged on the left steering end 11 and the right steering end 12, the left goat's horn 2 and the right goat's horn 3 can rotate at the moment, and the limiting block 4 stops rotating and is limited when colliding.
As shown in fig. 4 to 8, the invention provides a wheel type front axle steering adjusting mechanism, which is connected to a front axle 1 and comprises a left claw 2, a right claw 3, a limiting block 4, a steering gear 5, a connecting rod 6 and a joint bearing 7; the inner side walls of a left steering end 11 and a right steering end 12 of a front axle 1 are respectively provided with a first threaded hole 13, a second threaded hole 14 and a third threaded hole 15, the inner side walls of the left steering end 11 and the right steering end 12 of the front axle 1 are respectively connected with a limiting block 4, the upper end and the lower end of the left steering end 11 and the right steering end 12 of the front axle 1 are respectively in shaft connection with a left claw 2 and a right claw 3, and the left claw 2 and the right claw 3 are respectively in shaft connection with a wheel 9; the middle of the front axle 1 is connected with a steering gear 5, two sides of the steering gear 5 are connected with a knuckle bearing 7, the left goat's horn 2 and the right goat's horn 3 are connected with one end of a connecting rod 6 through shafts, and an adjusting pad can be added between the knuckle bearing 7 and the other end of the connecting rod 6.
In the invention, a first mounting hole 41, a second mounting hole 42 and a third mounting hole 43 are arranged on the limiting block 4; the left claw 2 and the right claw 3 are both provided with a connecting handle 21, the connecting handle 21 is provided with a first shaft hole 22, the connecting rod 6 is provided with a second shaft hole 61, and the first shaft hole 22 and the second shaft hole 61 are connected through a pin shaft 8.
In the invention, the front axle 1, the left horn 2 and the right horn 3 are equivalent to the length of the upper bottom of an ackman trapezoid, the connecting handle 21 is equivalent to the length of two waists of the ackman trapezoid, and the steering gear 5, the connecting rod 6, the knuckle bearing 7 and the adjusting pad are equivalent to the length of the lower bottom of the ackman trapezoid.
In the invention, the limiting block 4 is provided with a limiting handle 44 for limiting the turning angles of the left goat horn 2 and the right goat horn 3, the upper and lower ends of the left goat horn 2 and the right goat horn 3 are both provided with a rotating shaft hole 31, the left steering end 11 and the right steering end 12 of the front axle 1 are both provided with a rotating shaft 16, and the rotating shaft 16 is in shaft connection with the rotating shaft hole 31, so that the rotation of the left steering end 11 and the right steering end 12 is facilitated.
In the invention, the limiting block 4 has two functions, so that the steering angle can be limited and zero can be found; when in normal use, the limiting block 4 is only arranged on the front axle 1, does not influence the rotation of the left claw 2 and the right claw 3, and only plays a role in steering limiting; when the front axle is assembled, the limiting block 4 is moved upwards by the distance of one threaded hole and is fixed by screws, the relative positions of the front axle 1, the left goat's horn 2 and the right goat's horn 3 are fixed and can not rotate, and the two wheels 9 are right opposite to the front, so that the zero searching operation is completed; the Ackermann trapezoid connecting rod mechanism is assembled in a zero seeking state, the number of the adjusting pads can be accurately determined and increased on the basis of no measurement, and the theoretical calculation value of the side length of the Ackermann trapezoid is maximally approached.
The invention has the beneficial effects that:
1. the side length of the Ackermann trapezoid can be maximally close to the theoretical calculated value of the side length of the Ackermann trapezoid without accurate measurement during assembly.
2. The limiting block 4 can limit the steering angle and can also seek zero.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A wheel type front axle steering adjusting method is characterized by comprising the following steps:
step S1, arranging a first threaded hole, a second threaded hole and a third threaded hole in the inner side walls of the left steering end and the right steering end of the front axle;
step S2, arranging a first mounting hole, a second mounting hole and a third mounting hole on a limiting block, and respectively connecting the second mounting hole and the third mounting hole with a first threaded hole and a second threaded hole through two screws so as to install the limiting block at both the left steering end and the right steering end of the front axle;
step S3, the upper end and the lower end of the left steering end and the right steering end of the front axle are respectively in shaft connection with the left goat horn and the right goat horn; the left claw and the right claw are respectively clamped at the left steering end and the right steering end of the front axle through the limiting blocks;
step S4, the middle of the front axle is connected with a steering gear, two sides of the steering gear are both connected with a knuckle bearing, the left goat 'S horn and the right goat' S horn are both connected with one end of a connecting rod through a shaft, and an adjusting pad is additionally arranged between the knuckle bearing and the other end of the connecting rod;
and S5, detaching the two limiting blocks from the left steering end and the right steering end of the front axle respectively, connecting the first mounting hole, the second mounting hole and the third mounting hole to the first threaded hole, the second threaded hole and the third threaded hole respectively through three screws, and installing the two limiting blocks on the left steering end and the right steering end of the front axle.
2. The method for adjusting the steering direction of the wheel type front axle according to claim 1, wherein the left claw and the right claw are both provided with a connecting handle, the connecting handle is provided with a first axle hole, the connecting rod is provided with a second axle hole, and the first axle hole and the second axle hole are connected through a pin shaft.
3. The steering adjustment method for the wheeled front axle according to claim 2, wherein the upper and lower ends of the left and right sheepskin are provided with rotating shaft holes, the left and right steering ends of the front axle are provided with rotating shafts, and the rotating shafts are coupled with the rotating shaft holes.
4. The method of claim 2, wherein the left cleat and the right cleat are coupled to a wheel respectively.
5. The method for adjusting steering of a wheeled front axle according to claim 1, wherein a limiting handle is provided on the limiting block.
6. A wheel type front axle steering adjusting mechanism is connected to a front axle and is characterized by comprising a left claw, a right claw, a limiting block, a steering gear, a connecting rod and a joint bearing; the inner side walls of the left steering end and the right steering end of the front axle are respectively provided with a first threaded hole, a second threaded hole and a third threaded hole, the inner side walls of the left steering end and the right steering end of the front axle are respectively connected with a limiting block, the limiting block moves upwards by one threaded hole position, so that the second mounting hole and the third mounting hole are respectively connected with the first threaded hole and the second threaded hole, the third threaded hole is vacant, and meanwhile, the first mounting hole is also a vacant non-mounted screw;
the upper end and the lower end of a left steering end and a right steering end of the front axle are respectively in shaft connection with the left claw and the right claw, and the left claw and the right claw are respectively in shaft connection with a wheel; the middle of the front axle is connected with the steering gear, two sides of the steering gear are both connected with the knuckle bearing, the left goat's horn and the right goat's horn are both connected with one end of the connecting rod through a shaft, and an adjusting pad can be added between the knuckle bearing and the other end of the connecting rod;
and two limiting blocks are detached from the left steering end and the right steering end of the front axle respectively, the first mounting hole, the second mounting hole and the third mounting hole are connected to the first threaded hole, the second threaded hole and the third threaded hole respectively through three screws, and the two limiting blocks are installed on the left steering end and the right steering end of the front axle.
7. The steering adjusting mechanism for the wheel type front axle according to claim 6, wherein the limiting block is provided with a first mounting hole, a second mounting hole and a third mounting hole.
8. The steering adjusting mechanism for the wheel type front axle according to claim 7, wherein the left claw and the right claw are both provided with a connecting handle, the connecting handle is provided with a first axle hole, the connecting rod is provided with a second axle hole, and the first axle hole and the second axle hole are connected through a pin shaft.
9. The wheeled front axle steering adjusting mechanism of claim 8, wherein the limiting block is provided with a limiting handle.
10. The steering adjusting mechanism for the wheeled front axle according to claim 9, wherein the left and right goat horns are provided with rotating shaft holes at upper and lower ends thereof, and the front axle is provided with rotating shafts at left and right steering ends thereof, and the rotating shafts are coupled with the rotating shaft holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390004.4A CN113044104B (en) | 2019-12-27 | 2019-12-27 | Wheel type front axle steering adjusting method and steering adjusting mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390004.4A CN113044104B (en) | 2019-12-27 | 2019-12-27 | Wheel type front axle steering adjusting method and steering adjusting mechanism thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113044104A CN113044104A (en) | 2021-06-29 |
| CN113044104B true CN113044104B (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911390004.4A Active CN113044104B (en) | 2019-12-27 | 2019-12-27 | Wheel type front axle steering adjusting method and steering adjusting mechanism thereof |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU492499B2 (en) * | 1975-12-01 | 1977-06-09 | Dynapac Maskin Aktiebolag | Steering device ona road roller |
| DE3327550C2 (en) * | 1983-07-30 | 1985-06-13 | TRW Ehrenreich GmbH & Co KG, 4000 Düsseldorf | Tie rod joint |
| CN201006726Y (en) * | 2007-01-04 | 2008-01-16 | 祥发金属工业股份有限公司 | Adjustable ram's horn structure small-sized vehicular |
| CN201169294Y (en) * | 2007-08-24 | 2008-12-24 | 安徽江淮汽车股份有限公司 | Light truck right front axle |
| CN203713960U (en) * | 2014-02-20 | 2014-07-16 | 江苏江淮动力股份有限公司 | Steering structure for rear axle |
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2019
- 2019-12-27 CN CN201911390004.4A patent/CN113044104B/en active Active
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| CN113044104A (en) | 2021-06-29 |
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