CN114435467A - Steering mechanism and beam transporting vehicle - Google Patents
Steering mechanism and beam transporting vehicle Download PDFInfo
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- CN114435467A CN114435467A CN202210243057.9A CN202210243057A CN114435467A CN 114435467 A CN114435467 A CN 114435467A CN 202210243057 A CN202210243057 A CN 202210243057A CN 114435467 A CN114435467 A CN 114435467A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 43
- 230000000712 assembly Effects 0.000 claims description 10
- 238000000429 assembly Methods 0.000 claims description 10
- 239000010720 hydraulic oil Substances 0.000 description 20
- 239000003921 oil Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
- B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
- B62D7/142—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering specially adapted for particular vehicles, e.g. tractors, carts, earth-moving vehicles, trucks
- B62D7/144—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering specially adapted for particular vehicles, e.g. tractors, carts, earth-moving vehicles, trucks for vehicles with more than two axles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
- B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
- B62D7/15—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering characterised by means varying the ratio between the steering angles of the steered wheels
- B62D7/1518—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering characterised by means varying the ratio between the steering angles of the steered wheels comprising a mechanical interconnecting system between the steering control means of the different axles
- B62D7/1527—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering characterised by means varying the ratio between the steering angles of the steered wheels comprising a mechanical interconnecting system between the steering control means of the different axles comprising only mechanical parts, i.e. without assistance means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The invention provides a steering mechanism and a beam transporting vehicle, and relates to the technical field of beam transporting vehicles, wherein the steering mechanism comprises: the driving assembly comprises a driving arm and a driving piece, and the driving piece is suitable for being connected with the frame and driving the driving arm to rotate; a plurality of running wheel sets, the running wheel sets comprising a steering arm; a connecting rod assembly; one end of the driving arm is rotatably connected with the driving piece, the other end of the driving arm is connected with one of the steering arms, two adjacent steering arms are connected through the connecting rod assembly, and the connecting rod assembly is suitable for adjusting the distance between the two adjacent steering arms. The driving arm is driven to rotate by the driving piece, and the connecting rod assembly and the steering arm are driven to rotate, so that the plurality of walking wheel sets are in linkage steering, the number of the driving pieces is reduced, and the cost is reduced; the driving arm, the connecting rod assembly and the steering arm of the steering mechanism form a connecting rod mechanism, and the steering angle ratio of the adjacent walking wheel sets is adjusted through the connecting rod assembly, so that the beam transporting vehicle can be suitable for various road conditions and has good applicability.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a steering mechanism and a beam transporting vehicle.
Background
In the process of erecting the bridge, the beam transporting vehicle is mainly used for transferring and transporting beam blocks. In the prior art, the steering mechanism of the girder transporting vehicle is generally arranged in an axisymmetric structure. The steering mechanism mainly comprises a steering oil cylinder and a plurality of walking wheel sets, and each walking wheel set comprises a left walking wheel, a right walking wheel and two steering oil cylinders. When the steering is carried out, one steering oil cylinder stretches and the other steering oil cylinder contracts to realize the steering action of the left and right walking wheels in the same walking wheel set. This makes every walking wheelset of fortune roof beam car all need set up two and rotate the hydro-cylinder, and manufacturing cost is higher, and is not convenient for control respectively and walks the steering angle and the turning radius of walking the wheel, has influenced the accuracy that turns to of fortune roof beam car, leads to the suitability of fortune roof beam car poor.
Disclosure of Invention
The invention solves the problem of how to improve the applicability of the steering mechanism of the girder transporting vehicle so as to control the steering angle and the turning radius of each running wheel set.
To solve the above problem, the present invention provides a steering mechanism including: the driving assembly comprises a driving arm and a driving piece, wherein the driving piece is suitable for being connected with the frame and driving the driving arm to rotate; a plurality of running wheel sets comprising a steering arm; a connecting rod assembly; one end of the driving arm is rotatably connected with the driving piece, the other end of the driving arm is connected with one of the steering arms, two adjacent steering arms are connected through the connecting rod assembly, and the connecting rod assembly is suitable for adjusting the distance between the two adjacent steering arms.
Optionally, the connecting rod assembly includes an adjusting structure and at least two connecting rod bodies, the connecting rod bodies located at two ends of the connecting rod assembly are respectively rotatably connected to two adjacent steering arms, the two adjacent connecting rod bodies are connected to each other through the adjusting structure, and the adjusting structure is adapted to adjust a distance between the two adjacent connecting rod bodies.
Optionally, the adjusting structure includes an adjusting nut and an adjusting stud, two opposite ends of two adjacent connecting rod bodies are respectively connected to the adjusting nut and the adjusting stud, and the adjusting nut is sleeved on the adjusting stud and is in threaded connection with the adjusting stud.
Optionally, the driving part comprises a hydraulic oil cylinder, a piston rod of the hydraulic oil cylinder is rotatably connected with the driving arm, and a cylinder body of the hydraulic oil cylinder is suitable for being rotatably connected with the frame.
Optionally, a piston rod of the hydraulic oil cylinder is hinged to the driving arm through a first pin shaft, and a cylinder body of the hydraulic oil cylinder is suitable for being hinged to the frame through a second pin shaft.
Optionally, the connecting rod bodies at two ends of the connecting rod assembly are hinged to the adjacent steering arms through a third pin shaft and a fourth pin shaft respectively.
Optionally, when the running wheel sets run longitudinally, the first ends of the connecting rod assemblies are located on a first vertical surface, the second ends of the connecting rod assemblies are located on a second vertical surface, and the first vertical surface and the second vertical surface are parallel to each other and arranged at intervals.
Optionally, four sets of the walking wheel sets are provided, the driving assembly is located between the middle two sets of the walking wheel sets, and the driving arm is connected with the steering arm of one of the middle two sets of the walking wheel sets.
Optionally, the end of the steering arm remote from the connection to the running wheel set is adapted to be disposed towards the outside of the frame.
The steering mechanism drives the driving arm to rotate through the driving part (such as a hydraulic oil cylinder) to drive the connecting rod assembly and the steering arm to rotate, so that linkage steering is realized among the plurality of walking wheel sets, namely steering control of the plurality of walking wheel sets is realized through a single driving part, the number of the driving parts is reduced, the cost of related parts is reduced, and the steering mechanism is suitable for most construction site purchasing requirements; the driving arm, the connecting rod assembly and the steering arms of the steering mechanism form a connecting rod mechanism, the distance between different adjacent steering arms is adjusted through the connecting rod assembly, the rotation amplitude between the multiple steering arms is inconsistent, a certain steering angle ratio is further formed between the steering angles of adjacent walking wheel sets, when the turning radiuses of the multiple walking wheel sets which correspond to each other are unequal, the distance between the adjacent steering arms is adjusted through the connecting rod assembly to control the steering angle ratio between the walking wheel sets, the steering angles of the walking wheel sets meet the road section requirements, the accuracy of the overall steering angle of the beam transporting vehicle is ensured, the beam transporting vehicle can be suitable for various road conditions, and the beam transporting vehicle has good applicability.
The invention also provides a beam transporting vehicle which comprises the steering mechanism.
The beam transporting vehicle has all the advantages of the steering mechanism, and the detailed description is omitted.
Drawings
Fig. 1 is a schematic structural diagram of a steering mechanism according to an embodiment of the present invention;
fig. 2 is an enlarged view at i of fig. 1 according to an embodiment of the present invention.
Description of reference numerals:
1-a drive assembly; 11-a drive arm; 12-a drive member; 13-a first pin; 14-a second pin; 2-a running wheel set; 21-a steering arm; 22-running wheels; 3-a linkage assembly; 31-a connecting rod body; 32-a regulating structure; 321-an adjusting nut; 322-adjusting studs; 33-a third pin; 34-fourth pin.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the coordinate system XYZ provided herein, the X axis represents the right direction in the forward direction, the X axis represents the left direction in the reverse direction, the Y axis represents the rear direction in the forward direction, the Y axis represents the front direction in the reverse direction, the Z axis represents the upper direction in the forward direction, and the Z axis represents the lower direction in the reverse direction. Also, it is noted that the terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
An embodiment of the present invention provides a steering mechanism, including: the driving assembly 1 comprises a driving arm 11 and a driving piece 12, wherein the driving piece 12 is suitable for being connected with the vehicle frame and is suitable for driving the driving arm 11 to rotate; a plurality of running wheels 2, said running wheels 2 comprising a steering arm 21; a connecting rod assembly 3; one end of the driving arm 11 is rotatably connected to the driving member 12, the other end of the driving arm is connected to one of the steering arms 21, two adjacent steering arms 21 are connected to each other through the connecting rod assembly 3, and the connecting rod assembly 3 is adapted to adjust a distance between two adjacent steering arms 21.
Specifically, referring to fig. 1 and 2, each running wheel set 2 corresponds to one steering arm 21, the driving arm 11 can drive one of the steering arms 21 to rotate, and the driving arm 11 and the steering arm 21 share the same rotating central shaft, so as to control the turning of the running wheel set 2 connected to the steering arm 21. Two ends of the connecting rod assembly 3 are respectively connected with adjacent steering arms 21 to form a connecting rod mechanism, so that the rotation of the steering arm 21 connected with the driving arm 11 is transmitted to the adjacent steering arm 21, and the walking wheel set 2 connected with the adjacent steering arm 21 can also control the steering; moreover, the link assembly 3 may employ a component (not shown) having a telescopic function, such as a telescopic cylinder, to drive the steering arms 21, so as to adjust the distance between adjacent steering arms 21, i.e. adjust the length of the link in the link mechanism.
For example, when the girder transporting vehicle travels along a curved track such as an elliptical arc, the turning radius and the steering angle of each running wheel set 2 are not consistent, and the rotation amplitude between each steering arm 21 is not consistent, at this time, the distance between different adjacent steering arms 21 can be adjusted by using the connecting rod assembly 3 according to the actual turning radius and the steering angle of each running wheel set 2, so that the rotation amplitudes of the steering arms 21 are different, and the steering angles of the running wheel sets 2 are also different.
It should be noted that the steering mechanism can increase or decrease the number of the running wheel sets 2 according to actual requirements (for example, the bearing requirements are high), without affecting the steering control of each running wheel set 2; meanwhile, the specific structure of the link assembly 3 is not limited, and it is sufficient if the distance between the adjacent steering arms 21 can be adjusted.
The steering mechanism drives the driving arm to rotate through the driving part (such as a hydraulic oil cylinder) to drive the connecting rod assembly and the steering arm to rotate, so that linkage steering is realized among the plurality of walking wheel sets, namely steering control of the plurality of walking wheel sets is realized through a single driving part, the number of the driving parts is reduced, the cost of related parts is reduced, and the steering mechanism is suitable for most construction site purchasing requirements; the driving arm, the connecting rod assembly and the steering arms of the steering mechanism form a connecting rod mechanism, the distance between different adjacent steering arms is adjusted through the connecting rod assembly, the rotation amplitude between the multiple steering arms is inconsistent, a certain steering angle ratio is further formed between the steering angles of adjacent walking wheel sets, when the turning radiuses of the multiple walking wheel sets which correspond to each other are unequal, the distance between the adjacent steering arms is adjusted through the connecting rod assembly to control the steering angle ratio between the walking wheel sets, the steering angles of the walking wheel sets meet the road section requirements, the accuracy of the overall steering angle of the beam transporting vehicle is ensured, the beam transporting vehicle can be suitable for various road conditions, and the beam transporting vehicle has good applicability.
Optionally, the connecting rod assembly 3 includes an adjusting structure 32 and at least two connecting rod bodies 31, the connecting rod bodies 31 at two ends of the connecting rod assembly 3 are respectively rotatably connected to two adjacent steering arms 21, two adjacent connecting rod bodies 31 are connected by the adjusting structure 32, and the adjusting structure 32 is adapted to adjust a distance between two adjacent connecting rod bodies 31.
Specifically, as shown in fig. 2, the two link bodies 31 are connected to each other through the adjusting structure 32, and one ends of the two link bodies 31 away from the adjusting structure 32 are respectively connected to two adjacent steering arms 21 in a rotating manner; when the number of the connecting rod bodies 31 is larger than two, the adjacent connecting rod bodies 31 are also connected through the adjusting structure 32 to form a multi-section connecting rod assembly 3 structure. When the adjusting structure 32 adjusts the pitch of two adjacent link bodies 31, the adjacent two steering arms 21 also come closer to or farther away as the pitch between the plurality of link bodies 31 changes.
Therefore, the connecting rod bodies 31 at the two ends of the connecting rod assembly 3 are rotatably connected with the adjacent steering arms 21, so that the structure of a connecting rod mechanism formed by the adjacent steering arms 21 and the connecting rod assembly 3 is more stable, and the steering accuracy of the walking wheel set 2 is improved.
Optionally, the adjusting structure 32 includes an adjusting nut 321 and an adjusting stud 322, two ends of the connecting rod body 31 opposite to each other are respectively connected to the adjusting nut 321 and the adjusting stud 322, and the adjusting nut 321 is sleeved on the adjusting stud 322 and is in threaded connection with the adjusting stud 322.
Specifically, referring to fig. 2, two connecting rod bodies 31 are arranged from front to back (i.e. in the positive direction of the Y axis in the figure), an adjusting nut 321 is connected to the rear end of the first connecting rod body 31, an adjusting stud 322 is connected to the front end of the second connecting rod body 31, the rear end of the first connecting rod body 31 and the front end of the second connecting rod body 31 are arranged opposite to each other, and the adjusting stud 322 is screwed with the adjusting nut 321.
The specific principle of adjusting the spacing between adjacent connecting rod bodies 31 by the adjusting structure 32 is as follows: when the distance between the adjacent connecting rod bodies 31 needs to be reduced or enlarged, the adjusting screw bolts 322 or the adjusting screw bolts 321 are rotated, so that the adjusting screw bolts 322 are gradually screwed into or screwed out of the adjusting screw bolts 321, the adjacent connecting rod bodies 31 are driven to generate relative displacement, and the function of adjusting the distance between the adjacent connecting rod bodies 31 is realized.
Illustratively, the adjustment nut 321 and the adjustment stud 322 are also rotatable relative to the connecting rod body 31. For example, the adjusting nut 321 is rotatably connected to the rear end of the first connecting rod body 31, and when the adjusting structure 32 adjusts the distance between the adjacent connecting rod bodies 31, the adjustment of the distance between the adjacent connecting rod bodies 31 can be conveniently realized without disassembling the connecting rod bodies 31.
In addition, the adjusting stud 322 may also be provided with a nut structure, that is, the adjusting stud 322 is integrally formed with a structure similar to a hexagon screw, so that the adjusting stud 322 can be rotated by a tool to adjust the distance between the adjacent connecting rod bodies 31.
Like this, adjust the interval of adjacent connecting rod body 31 through the threaded connection of adjusting nut 321 and adjusting stud 322 to drive the interval of adjacent steering arm 21 and change, compare in the spare part that has flexible function through for example telescopic cylinder, the regulation of the angle ratio that turns to between the adjacent steering arm 21 is more accurate, makes the accuracy of the angle that turns to of walking wheelset 2 higher, has improved the suitability that the roof beam transporting car went to multiple bend.
Optionally, as shown in fig. 1, the driving member 12 includes a hydraulic cylinder, a piston rod of the hydraulic cylinder is rotatably connected to the driving arm 11, and a cylinder body of the hydraulic cylinder is adapted to be rotatably connected to the frame.
Specifically, one end of the driving arm 11 is connected with one of the steering arms 21, and the other end of the driving arm is rotationally connected with a piston rod of the hydraulic oil cylinder, when the piston rod of the hydraulic oil cylinder moves in a telescopic manner, the driving arm 11 is pushed by the piston rod of the hydraulic oil cylinder to drive the steering arm 21 to rotate, so that the steering function of the walking wheel set 2 is realized.
Thus, when the beam transport vehicle adopting the steering mechanism carries heavy objects, the friction force generated between the walking wheels 22 of the walking wheel set 2 and the ground can be overcome through the hydraulic oil cylinder, and the steering of the walking wheel set 2 can be controlled conveniently and accurately.
Optionally, as shown in fig. 1, a piston rod of the hydraulic oil cylinder is hinged to the driving arm 11 through a first pin 13, and a cylinder body of the hydraulic oil cylinder is adapted to be hinged to the frame through a second pin 14.
Specifically, a double lug plate structure is arranged on a piston rod of the hydraulic oil cylinder, a single lug plate structure is arranged at one end, hinged with the piston rod of the hydraulic oil cylinder, of the driving arm 11, and the hinging of the driving arm 11 and the piston rod of the hydraulic oil cylinder is realized by respectively arranging through holes on the double lug plate structure and the single lug plate structure and penetrating through a first pin shaft 13; the hinge structure of the body and the frame of the hydraulic oil cylinder is similar to the hinge structure, and a double lug plate structure and a single lug plate structure can be hinged through a second pin shaft 14.
Therefore, the cylinder body of the hydraulic oil cylinder is hinged with the frame through the first pin shaft 13 and the second pin shaft 14, and the piston rod of the hydraulic oil cylinder is hinged with the driving arm 11, so that the frame, the hydraulic oil cylinder and the driving arm 11 are connected in a rotating mode more stably, more stable power transmission is achieved, and the steering of the walking wheel set 2 is controlled conveniently.
Alternatively, as shown in fig. 2, the link body 31 at both ends of the link assembly 3 is hinged to the adjacent steering arm 21 by a third pin 33 and a fourth pin 34, respectively.
Specifically, the end of the steering arm 21, which is far away from the end connected with the traveling wheel set 2, is provided with a double-lug-plate structure, the connecting rod bodies 31 at the two ends of the connecting rod assembly 3 are respectively provided with a single-lug-plate structure, and the two adjacent steering arms 21 are hinged to the single-lug-plate structures of the connecting rod bodies 31 at the two ends of the connecting rod assembly 3 through a third pin shaft 33 and a fourth pin shaft 34, so that a connecting rod mechanism is formed.
It should be understood that the above-mentioned double-lug plate structure and single-lug plate structure can be designed at different positions or arranged on different structures according to specific design requirements, and are not limited in particular.
In this way, the adjacent steering arms 21 are hinged to the link bodies 31 at the two ends of the link assembly 3 by the third pin shaft 33 and the fourth pin shaft 34, so that the link mechanism formed by the adjacent steering arms 21 and the link assembly 3 can stably transmit power, so as to control the steering of the running wheel set 2.
Optionally, when the running wheel sets 2 run longitudinally, the first ends of the connecting rod assemblies 3 are located on a first vertical surface, the second ends of the connecting rod assemblies 3 are located on a second vertical surface, and the first vertical surface and the second vertical surface are parallel to each other and arranged at an interval.
Illustratively, as shown in connection with fig. 1, when the running wheel set 2 runs longitudinally (i.e., runs in a direction parallel to the Y axis in the figure), the front ends of the plurality of link assemblies 3 (i.e., the ends of the link assemblies 3 facing the Y axis in the figure) are all located on a first vertical plane, which is parallel to the YZ plane; the rear ends of the plurality of link assemblies 3 (i.e., the ends of the link assemblies 3 directed in the Y-axis direction in the drawing) are all located on a second vertical plane, which is also parallel to the YZ plane, but spaced from the first vertical plane.
In this way, it is convenient to mount the link assembly 3 between the adjacent steering arms 21, and to calculate the steering angle ratio between the running wheels 2 when the pitch between the steering arms 21 is adjusted by the link assembly 3.
Optionally, as shown in fig. 1, four sets of the running wheel sets 2 are provided, the driving assembly 1 is located between the middle two sets of the running wheel sets 2, and the driving arm 11 is connected to the steering arm 21 of one of the middle two sets of the running wheel sets 2.
In this embodiment, the driving assembly 1 is disposed between the middle two sets of running wheel sets 2, and is connected to one of the middle two sets of running wheel sets 2 through the driving arm 11, so as to drive the remaining three running wheel sets 2 to control steering, thereby reducing energy loss transmitted by the driving member 12.
Alternatively, the end of the steering arm 21 remote from the connection to the running wheel set 2 is adapted to be disposed towards the outside of the frame. Wherein, the outside of the frame refers to the left or right side of the frame.
Specifically, the first end of the steering arm 21 is connected to the running wheel set 2, and the second end is disposed toward the outer side of the frame and is rotatably connected to the link assembly 3. It should be noted that the end of the steering arm 21 away from the end connected to the running gear set 2 faces the outside of the frame, and the specific facing angle is not limited, and may be adjusted according to the steering angle requirement of the running gear set 2 as long as the end connected to the running gear set 2 with respect to the steering arm 21 faces the outside of the frame.
So, when the interval of adjacent steering arm 21 was adjusted to needs, can make things convenient for the workman to use the instrument to adjust link assembly 3 in the outside of frame to change the interval between the adjacent steering arm 21, and need not to stretch into the frame bottom, improved the efficiency of adjusting walking wheelset 2 and turning to the angle.
Another embodiment of the invention provides a girder transporting vehicle, which comprises the steering mechanism.
The frame of the girder transporting vehicle in the embodiment comprises four angular points, and the steering mechanisms are respectively arranged at the positions of the four angular points, so that the load capacity of the girder transporting vehicle is improved, and the steering accuracy of the walking wheel set 2 of the girder transporting vehicle is ensured when the girder transporting vehicle turns.
It should be noted that the frame of the girder transport vehicle is generally a rectangular plate-shaped structure or a substantially rectangular plate-shaped structure, a rectangular surface of the rectangular plate-shaped structure perpendicular to the vertical direction includes four right-angle sides, and the four corner points refer to corner points near intersection points of the four right-angle sides, and the positions of the four corner points can be adjusted according to related design requirements.
The beam transporting vehicle of the embodiment has all the advantages of the steering mechanism in the embodiment, and the detailed description is omitted here.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.
Claims (10)
1. A steering mechanism, comprising:
the driving assembly (1) comprises a driving arm (11) and a driving piece (12), wherein the driving piece (12) is suitable for being connected with the vehicle frame and driving the driving arm (11) to rotate;
-a plurality of running wheel sets (2), said running wheel sets (2) comprising a steering arm (21);
a connecting-rod assembly (3);
one end of the driving arm (11) is rotatably connected with the driving part (12), the other end of the driving arm is connected with one of the steering arms (21), two adjacent steering arms (21) are connected through the connecting rod assembly (3), and the connecting rod assembly (3) is suitable for adjusting the distance between two adjacent steering arms (21).
2. The steering mechanism according to claim 1, wherein the connecting rod assembly (3) comprises at least two connecting rod bodies (31) and an adjusting structure (32), the connecting rod bodies (31) at two ends of the connecting rod assembly (3) are respectively rotatably connected with two adjacent steering arms (21), the two adjacent connecting rod bodies (31) are connected through the adjusting structure (32), and the adjusting structure (32) is suitable for adjusting the distance between the two adjacent connecting rod bodies (31).
3. The steering mechanism according to claim 2, wherein the adjusting structure (32) comprises an adjusting nut (321) and an adjusting stud (322), two opposite ends of two adjacent connecting rod bodies (31) are respectively connected with the adjusting nut (321) and the adjusting stud (322), and the adjusting nut (321) is sleeved on the adjusting stud and is in threaded connection with the adjusting stud (322).
4. Steering mechanism according to claim 1, wherein the drive member (12) comprises a hydraulic ram, the piston rod of which is in rotational connection with the drive arm (11), the cylinder body of which is adapted to be in rotational connection with the frame.
5. Steering mechanism according to claim 4, wherein the piston rod of the hydraulic cylinder is articulated to the driving arm (11) by means of a first pin (13), and the body of the hydraulic cylinder is adapted to be articulated to the frame by means of a second pin (14).
6. Steering mechanism according to claim 2, characterized in that the link body (31) at both ends of the link assembly (3) is articulated to the adjacent steering arm (21) by a third pin (33) and a fourth pin (34), respectively.
7. Steering mechanism according to claim 1, wherein when a plurality of said running wheels (2) are running longitudinally, a plurality of said connecting-rod assemblies (3) are located with their first ends on a first vertical plane and a plurality of said connecting-rod assemblies (3) are located with their second ends on a second vertical plane, said first and second vertical planes being parallel and spaced from each other.
8. Steering mechanism according to claim 1, wherein the running wheel sets (2) are provided in four sets, the drive assembly (1) being located between the middle two sets of running wheel sets (2), and the drive arm (11) being connected to the steering arm (21) of one of the middle two sets of running wheel sets (2).
9. Steering mechanism according to any one of claims 1-8, wherein the end of the steering arm (21) remote from the connection to the running wheel set (2) is adapted to be arranged towards the outside of the frame.
10. A girder transport vehicle comprising a steering mechanism according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210243057.9A CN114435467A (en) | 2022-03-11 | 2022-03-11 | Steering mechanism and beam transporting vehicle |
| ZA2022/06227A ZA202206227B (en) | 2022-03-11 | 2022-06-06 | Steering mechanism and girder transporting vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210243057.9A CN114435467A (en) | 2022-03-11 | 2022-03-11 | Steering mechanism and beam transporting vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114435467A true CN114435467A (en) | 2022-05-06 |
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ID=81359784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210243057.9A Pending CN114435467A (en) | 2022-03-11 | 2022-03-11 | Steering mechanism and beam transporting vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114435467A (en) |
| ZA (1) | ZA202206227B (en) |
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| WO2009053526A1 (en) * | 2007-10-25 | 2009-04-30 | Tts Liftec Oy | Transportation device |
| US20100021234A1 (en) * | 2006-09-29 | 2010-01-28 | Willis Paul E | Propulsion and steering system for a road milling machine |
| US20150246688A1 (en) * | 2012-10-02 | 2015-09-03 | Goldhofer Ag | Heavy road vehicle with normal steering and crab steering |
| CN107284520A (en) * | 2017-06-19 | 2017-10-24 | 江西洪都航空工业集团有限责任公司 | A kind of electrical servo steering mechanism that overload protection is provided |
| CN206841511U (en) * | 2017-03-17 | 2018-01-05 | 苏州大学应用技术学院 | adjustable oil cylinder connecting rod steering mechanism |
| CN107826165A (en) * | 2017-10-21 | 2018-03-23 | 雷州雷宝机械有限公司 | Wheeled cane harvester |
| CN213168278U (en) * | 2020-08-05 | 2021-05-11 | 湖南杰希重工有限公司 | Adjustable steering connecting rod device for vehicle |
| CA3129195A1 (en) * | 2020-09-04 | 2022-03-04 | R.H. Sheppard Co. Inc. | End of travel relief system for power steering system |
-
2022
- 2022-03-11 CN CN202210243057.9A patent/CN114435467A/en active Pending
- 2022-06-06 ZA ZA2022/06227A patent/ZA202206227B/en unknown
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|---|---|---|---|---|
| DE4102884A1 (en) * | 1991-01-31 | 1992-08-06 | Krupp Industrietech | Belt type grinding machine - has belt mounted on carriage which can be moved along straight or curved path |
| CN1730824A (en) * | 2005-08-11 | 2006-02-08 | 三一重工股份有限公司 | Steering actuator of pneumatic tyred roller |
| CN201006725Y (en) * | 2006-08-07 | 2008-01-16 | 浙江吉利汽车研究院有限公司 | Fourth wheel positioning inclination angle regulating mechanism |
| US20100021234A1 (en) * | 2006-09-29 | 2010-01-28 | Willis Paul E | Propulsion and steering system for a road milling machine |
| CN101172490A (en) * | 2007-10-09 | 2008-05-07 | 张卫东 | Multi-shaft vehicle full-wheel steering structure |
| WO2009053526A1 (en) * | 2007-10-25 | 2009-04-30 | Tts Liftec Oy | Transportation device |
| US20150246688A1 (en) * | 2012-10-02 | 2015-09-03 | Goldhofer Ag | Heavy road vehicle with normal steering and crab steering |
| CN206841511U (en) * | 2017-03-17 | 2018-01-05 | 苏州大学应用技术学院 | adjustable oil cylinder connecting rod steering mechanism |
| CN107284520A (en) * | 2017-06-19 | 2017-10-24 | 江西洪都航空工业集团有限责任公司 | A kind of electrical servo steering mechanism that overload protection is provided |
| CN107826165A (en) * | 2017-10-21 | 2018-03-23 | 雷州雷宝机械有限公司 | Wheeled cane harvester |
| CN213168278U (en) * | 2020-08-05 | 2021-05-11 | 湖南杰希重工有限公司 | Adjustable steering connecting rod device for vehicle |
| CA3129195A1 (en) * | 2020-09-04 | 2022-03-04 | R.H. Sheppard Co. Inc. | End of travel relief system for power steering system |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA202206227B (en) | 2022-08-31 |
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