CN211568083U - Steering transmission system and special vehicle - Google Patents
Steering transmission system and special vehicle Download PDFInfo
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- CN211568083U CN211568083U CN202020180129.6U CN202020180129U CN211568083U CN 211568083 U CN211568083 U CN 211568083U CN 202020180129 U CN202020180129 U CN 202020180129U CN 211568083 U CN211568083 U CN 211568083U
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Abstract
The utility model relates to a turn to transmission system and special type vehicle, this turns to transmission system, include: the bogie is used for being rotatably assembled on the frame, and a driving connecting part is arranged on the bogie and is used for being in transmission connection with the steering gear so as to realize the rotation of the bogie on the frame; the two steering knuckle arms are respectively arranged on two sides of the bogie in the width direction of the frame; a knuckle arm tie rod disposed between the bogie and a corresponding knuckle arm; one end of the knuckle arm pull rod is hinged with the steering knuckle arm, the knuckle arm pull rod is in transmission connection with the bogie through the vertical arm, one of the knuckle arm pull rod and the bogie is in movable fit with the vertical arm along the axial direction of the vertical arm, and the other knuckle arm pull rod is in axial limit fit with the vertical arm along the vertical arm; and the relative movement stroke of the knuckle arm pull rod or the bogie and the vertical arm in the axial direction of the vertical arm is not less than the retraction movement stroke of the wheel assembly on the frame.
Description
Technical Field
The utility model relates to a steering transmission system and special vehicle.
Background
Some special vehicles have a land working condition and a water working condition, and the special vehicles advance by means of friction force between wheels and the ground when running on the land, and the wheels need to be retracted when running in water so as to reduce resistance.
Chinese patent No. CN201415706Y discloses a steering system for an air independent suspension, which comprises a steering gear and a steering rod system, wherein the steering rod system comprises a left and a right knuckle arms, a left and a right tie rods, a left and a right middle rocker arms, a middle tie rod and a steering drag link; the left and right middle rocker arms are respectively connected with the frame through pin shafts, two ends of a middle pull rod are hinged to the middle parts of the left and right middle rocker arms, two ends of a left and right tie rod are respectively hinged with a left and right knuckle arm and the left and right middle rocker arms in a ball hinge mode, the left and right knuckle arms are respectively fixed on the knuckle of the left and right wheels, and two ends of a steering straight pull rod are respectively hinged to the knuckle rocker arms and the left middle rocker arm in a ball hinge mode.
The steering system can only steer the wheel assemblies with fixed height, and when the wheel assemblies need to be folded upwards, the steering system cannot be applied, so that large resistance is generated due to the fact that the wheel assemblies cannot be folded when the special vehicle sails in water, and the sailing speed of the special vehicle is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a steering transmission system to solve the technical problem that the steering transmission system in the prior art can not fold up the wheel assembly upwards; an object of the utility model is to provide a special type vehicle still to solve the technical problem that the steering transmission system among the prior art can not upwards pack up the wheel.
In order to achieve the above object, the utility model discloses a steering transmission system's technical scheme is:
a steer drive system, comprising:
the bogie is used for being rotatably assembled on the frame, and a driving connecting part is arranged on the bogie and is used for being in transmission connection with the steering gear so as to realize the rotation of the bogie on the frame;
the two steering knuckle arms are respectively arranged on two sides of the bogie in the width direction of the frame;
a knuckle arm tie rod disposed between the bogie and a corresponding knuckle arm;
one end of the knuckle arm pull rod is hinged with the steering knuckle arm, the knuckle arm pull rod is in transmission connection with the bogie through the vertical arm, one of the knuckle arm pull rod and the bogie is in movable fit with the vertical arm along the axial direction of the vertical arm, the other knuckle arm pull rod and the vertical arm are in limited fit along the axial direction of the vertical arm, and the relative movement stroke of the knuckle arm pull rod or the bogie and the vertical arm in the axial direction of the vertical arm is not less than the retraction movement stroke of the wheel assembly on the frame;
or one end of the knuckle arm pull rod is hinged with the bogie, the knuckle arm pull rod is in transmission connection with the steering knuckle arm through the vertical arm, one of the knuckle arm pull rod and the steering knuckle arm is in movable fit with the vertical arm along the axial direction of the vertical arm, the other of the knuckle arm pull rod and the steering knuckle arm is in limited fit with the vertical arm along the axial direction of the vertical arm, and the relative movement stroke of the knuckle arm pull rod or the steering knuckle arm and the vertical arm in the axial direction of the vertical arm is not less than the retracting movement stroke of the wheel assembly on the frame.
The beneficial effects are that: when the wheel assembly steers, the bogie drives the knuckle arm pull rod to move under the driving of the steering gear so as to drive the knuckle arm to move, and further the steering of the wheel assembly is realized; when the wheel assembly goes up and down, under the drive of the driving mechanism, the knuckle arm pull rod, the bogie or the knuckle arm and the vertical arm move relatively along the axial direction of the vertical arm so as to meet the requirements of lowering and retracting the wheel assembly in the vertical direction. The steering transmission system can meet the steering of the wheel assembly under the land working condition and the folding of the wheel assembly under the water working condition, so that the resistance can be reduced when the special vehicle sails in water, and the sailing speed of the special vehicle is ensured.
Further, the height of the bogie is higher than the height of the knuckle arm.
The beneficial effects are that: the vehicle frame is suitable for most special vehicles with higher frames.
Further, the vertical arm is below the bogie.
The beneficial effects are that: the bogie is fixed on the frame, the space above the bogie is limited, the vertical arm is arranged below the bogie, and the space below the frame can be fully utilized.
Further, the vertical arm is fixed to the bogie.
The beneficial effects are that: and a hinge structure is omitted, so that the connection between the vertical arm and the bogie is facilitated.
Further, a stop portion is arranged on the vertical arm and used for preventing the knuckle arm pull rod, the bogie or the knuckle arm from being separated from the vertical arm.
The beneficial effects are that: the knuckle arm pull rod, the bogie or the knuckle arm are prevented from being separated from the vertical arm, and the stability of the wheel assembly in the lifting process is guaranteed.
Furthermore, the vertical arm is in movable fit with the knuckle arm pull rod, the bogie or the knuckle arm along the axial direction of the vertical arm through the peripheral surface of the vertical arm.
The beneficial effects are that: the vertical arm is movably assembled with the knuckle arm pull rod, the bogie or the steering knuckle arm along the axial direction of the vertical arm through the peripheral surface of the vertical arm, so that the structure of the vertical arm is simpler and the vertical arm is convenient to process.
Further, the vertical arm is in axial sliding fit with the knuckle arm tie rod, the bogie or the knuckle arm along the vertical arm.
The beneficial effects are that: the stability of the vertical arm and the knuckle arm pull rod, the bogie or the knuckle arm in the axial sliding process of the vertical arm is ensured.
Furthermore, the knuckle arm pull rod comprises two sections, and the adjacent ends of the two sections are connected through a spherical hinge;
one of the two sections of back ends is connected with a knuckle arm ball hinge, and the other is in rotation stopping fit with the bogie;
or one of the two sections of the opposite ends is connected with the ball hinge of the bogie, and the other end is in rotation stopping fit with the knuckle arm.
The beneficial effects are that: the knuckle arm pull rod can adapt to the jumping of a wheel assembly, and the service life of the knuckle arm pull rod is prolonged.
Furthermore, the bogie comprises a driving rotating arm and a driven rotating arm, and a rotating arm pull rod is arranged between the driving rotating arm and the driven rotating arm;
the driving connecting part is arranged on the driving rotating arm;
and the knuckle arm pull rods are arranged between the driving rotating arm and the corresponding knuckle arms and between the driven rotating arm and the corresponding knuckle arms.
The beneficial effects are that: the bogie is divided into a plurality of parts, connecting points are increased, certain relative movement between the parts is allowed during steering, and the two wheels are not greatly influenced.
In order to achieve the above object, the utility model discloses special type vehicle's technical scheme is:
special vehicle, including frame and steering transmission system, steering transmission system includes:
the bogie is rotatably assembled on the frame and is provided with a driving connecting part, and the driving connecting part is in transmission connection with the steering gear so as to realize the rotation of the bogie on the frame;
the two steering knuckle arms are respectively arranged on two sides of the bogie in the width direction of the frame;
a knuckle arm tie rod disposed between the bogie and a corresponding knuckle arm;
one end of the knuckle arm pull rod is hinged with the steering knuckle arm, the knuckle arm pull rod is in transmission connection with the bogie through the vertical arm, one of the knuckle arm pull rod and the bogie is in movable fit with the vertical arm along the axial direction of the vertical arm, the other knuckle arm pull rod and the vertical arm are in limited fit along the axial direction of the vertical arm, and the relative movement stroke of the knuckle arm pull rod or the bogie and the vertical arm in the axial direction of the vertical arm is not less than the retraction movement stroke of the wheel assembly on the frame;
or one end of the knuckle arm pull rod is hinged with the bogie, the knuckle arm pull rod is in transmission connection with the steering knuckle arm through the vertical arm, one of the knuckle arm pull rod and the steering knuckle arm is in movable fit with the vertical arm along the axial direction of the vertical arm, the other of the knuckle arm pull rod and the steering knuckle arm is in limited fit with the vertical arm along the axial direction of the vertical arm, and the relative movement stroke of the knuckle arm pull rod or the steering knuckle arm and the vertical arm in the axial direction of the vertical arm is not less than the retracting movement stroke of the wheel assembly on the frame.
The beneficial effects are that: when the wheel assembly steers, the bogie drives the knuckle arm pull rod to move under the driving of the steering gear so as to drive the knuckle arm to move, and further the steering of the wheel assembly is realized; when the wheel assembly goes up and down, under the drive of the driving mechanism, the knuckle arm pull rod, the bogie or the knuckle arm and the vertical arm move relatively along the axial direction of the vertical arm so as to meet the requirements of lowering and retracting the wheel assembly in the vertical direction. The steering transmission system can meet the steering of the wheel assembly under the land working condition and the folding of the wheel assembly under the water working condition, so that the resistance can be reduced when the special vehicle sails in water, and the sailing speed of the special vehicle is ensured.
Further, the height of the bogie is higher than the height of the knuckle arm.
The beneficial effects are that: the vehicle frame is suitable for most special vehicles with higher frames.
Further, the vertical arm is below the bogie.
The beneficial effects are that: the bogie is fixed on the frame, the space above the bogie is limited, the vertical arm is arranged below the bogie, and the space below the frame can be fully utilized.
Further, the vertical arm is fixed to the bogie.
The beneficial effects are that: and a hinge structure is omitted, so that the connection between the vertical arm and the bogie is facilitated.
Further, a stop portion is arranged on the vertical arm and used for preventing the knuckle arm pull rod, the bogie or the knuckle arm from being separated from the vertical arm.
The beneficial effects are that: the knuckle arm pull rod, the bogie or the knuckle arm are prevented from being separated from the vertical arm, and the stability of the wheel assembly in the lifting process is guaranteed.
Furthermore, the vertical arm is in movable fit with the knuckle arm pull rod, the bogie or the knuckle arm along the axial direction of the vertical arm through the peripheral surface of the vertical arm.
The beneficial effects are that: the vertical arm is movably assembled with the knuckle arm pull rod, the bogie or the steering knuckle arm along the axial direction of the vertical arm through the peripheral surface of the vertical arm, so that the structure of the vertical arm is simpler and the vertical arm is convenient to process.
Further, the vertical arm is in axial sliding fit with the knuckle arm tie rod, the bogie or the knuckle arm along the vertical arm.
The beneficial effects are that: the stability of the vertical arm and the knuckle arm pull rod, the bogie or the knuckle arm in the axial sliding process of the vertical arm is ensured.
Furthermore, the knuckle arm pull rod comprises two sections, and the adjacent ends of the two sections are connected through a spherical hinge;
one of the two sections of back ends is connected with a knuckle arm ball hinge, and the other is in rotation stopping fit with the bogie;
or one of the two sections of the opposite ends is connected with the ball hinge of the bogie, and the other end is in rotation stopping fit with the knuckle arm.
The beneficial effects are that: the knuckle arm pull rod can adapt to the jumping of a wheel assembly, and the service life of the knuckle arm pull rod is prolonged.
Furthermore, the bogie comprises a driving rotating arm and a driven rotating arm, and a rotating arm pull rod is arranged between the driving rotating arm and the driven rotating arm;
the driving connecting part is arranged on the driving rotating arm;
and the knuckle arm pull rods are arranged between the driving rotating arm and the corresponding knuckle arms and between the driven rotating arm and the corresponding knuckle arms.
The beneficial effects are that: the bogie is divided into a plurality of parts, connecting points are increased, certain relative movement between the parts is allowed during steering, and the two wheels are not greatly influenced.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of a steering transmission system according to the present invention;
fig. 2 is a lever system diagram of embodiment 2 of the steering transmission system of the present invention;
fig. 3 is a lever diagram of embodiment 3 of the steering transmission system of the present invention;
fig. 4 is a lever system diagram of embodiment 4 of the steering transmission system of the present invention;
fig. 5 is a lever diagram of embodiment 5 of the steering transmission system of the present invention;
fig. 6 is a schematic structural view of embodiment 6 of the steering transmission system of the present invention;
in the figure: 1-a wheel assembly; 2-a knuckle arm; 3-arm link; 31-a first pull rod; 32-a second pull rod; 4-a drive connection; 5-a first articulated shaft; 6-active rotating arm; 7-rotating arm pull rod; 8-a second articulated shaft; 9-driven rotating arm; 10-a vertical arm; 11-a stop; 12-a sliding sleeve; 13-a third articulation axis; 14-bogie.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
The utility model discloses a steering transmission system's embodiment 1:
as shown in fig. 1, the steering transmission system is provided between two wheel assemblies 1. The steering transmission system comprises a bogie, a knuckle arm pull rod 3 and a knuckle arm 2, wherein a vertical arm 10 is fixedly connected to the bogie, one end of the knuckle arm pull rod 3 is assembled on the vertical arm 10 in a sliding mode, and the other end of the knuckle arm pull rod is hinged to one end of the knuckle arm 2; the number of the knuckle arms 2 is two, and one end of each knuckle arm 2, which is far away from the corresponding knuckle arm pull rod 3, is fixedly connected with a knuckle of the corresponding wheel assembly 1, so that the knuckle arm pull rod 3 is driven to drive the knuckle arm 2 to move when the bogie rotates, and the steering of the wheel assembly 1 is further realized.
In the embodiment, the bogie comprises a driving rotating arm 6 and a driven rotating arm 9, wherein the driving rotating arm 6 is rotatably assembled on a first articulated shaft 5, the driven rotating arm 9 is rotatably assembled on a second articulated shaft 8, and the first articulated shaft 5 and the second articulated shaft 8 are both fixed on the frame; a rotating arm pull rod 7 is connected between the driving rotating arm 6 and the driven rotating arm 9, one end of the rotating arm pull rod 7 is hinged on the driving rotating arm 6, and the other end of the rotating arm pull rod 7 is hinged on the driven rotating arm 9, wherein a driving connecting part 4 is arranged on the driving rotating arm 6, the driving connecting part 4 is in transmission connection with a steering gear (not shown) through a driving rod, and the steering gear is in transmission connection with a steering wheel (not shown) so as to drive the driving rotating arm 6 to rotate through the steering gear when the steering wheel rotates. Wherein the height of the driving swivel arm 6 and the driven swivel arm 9 is higher than the height of the knuckle arm 2.
In the present embodiment, two knuckle arm tie rods 3 are provided, and the two knuckle arm tie rods 3 are respectively provided between the driving pivot arm 6 and the knuckle arm 2, and between the driven pivot arm 9 and the knuckle arm 2. Equal fixedly connected with vertical arm 10 on initiative rocking arm 6 and the driven rocking arm 9, vertical arm 10 is the columnar structure, and the one end that festival arm pull rod 3 is close to vertical arm 10 is equipped with sliding sleeve 12, and sliding sleeve 12 direction slip assembly is on vertical arm 10 to realize the lift of festival arm pull rod 3 in vertical side. Wherein, the moving stroke of the sliding sleeve 12 on the vertical arm 10 is not less than the retracting moving stroke of the wheel assembly 1. It should be noted that the gap between the inner wall surface of the sliding sleeve 12 and the outer peripheral surface of the vertical arm 10 is small enough to ensure that the vertical arm 10 on the corresponding rotating arm can transmit power to the knuckle arm pull rod 3 in time during transmission.
In this embodiment, the upper end of the vertical arm 10 is fixedly connected to the corresponding rotating arm, and the lower end of the vertical arm 10 is provided with a stop 11, wherein the stop 11 can prevent the sliding sleeve 12 of the arm link 3 from sliding out of the lower end of the vertical arm 10.
It should be noted that the hinges between the components are all spherical hinges. When the wheel assembly 1 needs to be steered, the driving rotating arm 6 drives the driven rotating arm 9 to synchronously rotate through the rotating arm pull rod 7 under the driving of the steering gear, and the vertical arm 10 on each rotating arm drives the knuckle arm pull rod 3 to move so as to drive the knuckle arm 2 to move, thereby realizing the steering of the wheel assembly 1. When the wheel assembly 1 needs to be lifted, the knuckle arm pull rod 3, the knuckle arm 2 and the wheel assembly 1 are driven to ascend or descend by the driving mechanism on the frame, and at the moment, the sliding sleeve 12 of the knuckle arm pull rod 3 slides on the vertical arm 10 to meet the requirement that the wheel assembly 1 is lowered and folded in the vertical direction. It should be noted that the steer drive does not affect the run out of the two wheel assemblies during operation.
The steering transmission system in the embodiment can ensure the reliability and safety of the steering of the wheel assembly under the working condition on land, can realize the large-amplitude lifting of the wheel assembly under the working condition on water, is favorable for improving the water navigational speed, and is suitable for most special vehicles.
The utility model discloses a steering transmission system's embodiment 2:
as shown in fig. 2, the difference from embodiment 1 is that a vertical arm 10 is not provided on the driving swivel arm 6 and the driven swivel arm 9, but is provided on both knuckle arms 2, and one end of the knuckle arm link 3 is hinged with the corresponding swivel arm and the other end is slidably fitted on the vertical arm 10 of the knuckle arm 2 by a sliding sleeve 12.
The utility model discloses a steering transmission system's embodiment 3:
as shown in fig. 3, the difference from embodiment 1 is that a vertical arm 10 is not provided on the driving tumbler 6 and the driven tumbler 9, but on one end of two knuckle arm links 3, and the knuckle arm 2 is slidably fitted on the vertical arm 10 of the knuckle arm link 3 by a sliding sleeve 12, and the other end of the knuckle arm link 3 is hinged with the corresponding tumbler.
The utility model discloses a steering transmission system's embodiment 4:
as shown in fig. 4, the difference from embodiment 1 is that the lower end of the vertical arm 10 is fixed to the knuckle arm link 3, and the driving swivel arm 6 and the driven swivel arm 9 are slidably fitted to the vertical arm 10 of the corresponding knuckle arm link 3 by means of a sliding sleeve 12. In other embodiments, the lower end of the vertical arm may be ball-hinged to the knuckle arm linkage.
The utility model discloses a steering transmission system's embodiment 5:
as shown in fig. 5, the difference from embodiment 1 is that the bogie 14 is an integral structure, the bogie is rotatably mounted on the vehicle frame through a third hinge shaft 13, the bogie 14 is provided with a driving connection part (not shown) and two vertical arms 10, and the knuckle arm tie rod 3 is slidably mounted on the corresponding vertical arm 10 through a sliding sleeve 12. Wherein the axis of the third articulation shaft 13 extends vertically.
The utility model discloses a steering transmission system's embodiment 6:
as shown in fig. 6, the difference from embodiment 1 is that the knuckle arm tie rod includes a first tie rod 31 and a second tie rod 32, adjacent ends of the first tie rod 31 and the second tie rod 32 are ball-hinged, the other end of the first tie rod 31 is ball-hinged with the knuckle arm 2, and the other end of the second tie rod 32 is rotation-stopped and assembled on the upright arm 10. Specifically, the vertical arm 10 is a spline shaft, an external spline is arranged on the spline shaft, an internal spline is arranged at the other end of the second pull rod 32, and the second pull rod 32 is assembled on the spline shaft in a rotation stopping manner through the matching of the internal spline and the external spline. It should be noted that the other end of the second tie rod is slidably fitted to the spline shaft in a guide manner in the axial direction of the spline shaft.
The utility model discloses a steering transmission system's embodiment 7:
the difference from embodiment 1 is that the upper end of the vertical arm is ball-hinged to the respective swivel arm.
The utility model discloses a steering transmission system's embodiment 8:
the difference with embodiment 1 lies in, is equipped with the spout on the vertical arm, and the spout extends along vertical direction, and the cross section of spout is the C type, and the one end that knuckle arm pull rod kept away from the knuckle arm is equipped with the slider, and the slider is the cylinder, and the axis of cylinder extends along vertical direction, and the slider sliding assembly is in the spout to realize that the one end sliding assembly of knuckle arm pull rod is on vertical arm. Wherein, the spout is the C type, can avoid the slider to deviate from in following the spout along the horizontal direction, and the slider is the cylinder, can make the relative vertical arm of festival arm pull rod at the circumferential direction of vertical arm.
The utility model discloses a steering transmission system's embodiment 9:
the difference from embodiment 1 is that the vertical arm is disposed above the corresponding swivel arm, and the knuckle arm tie rod includes two parallel sections, one of which is located below the corresponding swivel arm to be articulated with the knuckle arm, and a connecting section connecting the two parallel sections, the other of which is located above the corresponding swivel arm to be slidably fitted on the vertical arm.
The utility model discloses a steering transmission system's embodiment 10:
the difference from embodiment 1 is that the height of the driving pivot arm and the driven pivot arm is lower than that of the knuckle arm, and the steering transmission system is suitable for special vehicles with lower chassis.
The utility model discloses a steering transmission system's embodiment 11:
the difference with embodiment 1 is that the vertical arm is a tapered column with a small upper part and a large lower part, the gap between the sliding sleeve and the vertical arm is gradually increased when the sliding sleeve moves upwards, the sliding sleeve is not in guiding sliding assembly with the vertical arm, and the knuckle arm pull rod is allowed to slightly shake along the horizontal direction when the knuckle arm pull rod moves upwards. However, when the sliding sleeve moves downwards to a set position, the sliding sleeve is in transition fit with the vertical arm, and at the moment, the gap between the vertical arm and the sliding sleeve is very small, so that the vertical arm on the corresponding rotating arm can timely transmit power to the knuckle arm pull rod during transmission.
The utility model discloses a special type vehicle's embodiment, special type vehicle in this embodiment include frame and steering transmission system, should turn to the structure the same in each embodiment of transmission system with the aforesaid, no longer describe herein.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A steer drive, comprising:
the bogie is used for being rotatably assembled on the frame, and a driving connecting part is arranged on the bogie and is used for being in transmission connection with the steering gear so as to realize the rotation of the bogie on the frame;
the two steering knuckle arms are respectively arranged on two sides of the bogie in the width direction of the frame;
a knuckle arm tie rod disposed between the bogie and a corresponding knuckle arm;
one end of the knuckle arm pull rod is hinged with the steering knuckle arm, the knuckle arm pull rod is in transmission connection with the bogie through the vertical arm, one of the knuckle arm pull rod and the bogie is in movable fit with the vertical arm along the axial direction of the vertical arm, the other knuckle arm pull rod and the vertical arm are in limited fit along the axial direction of the vertical arm, and the relative movement stroke of the knuckle arm pull rod or the bogie and the vertical arm in the axial direction of the vertical arm is not less than the retraction movement stroke of the wheel assembly on the frame;
or one end of the knuckle arm pull rod is hinged with the bogie, the knuckle arm pull rod is in transmission connection with the steering knuckle arm through the vertical arm, one of the knuckle arm pull rod and the steering knuckle arm is in movable fit with the vertical arm along the axial direction of the vertical arm, the other of the knuckle arm pull rod and the steering knuckle arm is in limited fit with the vertical arm along the axial direction of the vertical arm, and the relative movement stroke of the knuckle arm pull rod or the steering knuckle arm and the vertical arm in the axial direction of the vertical arm is not less than the retracting movement stroke of the wheel assembly on the frame.
2. The steer drive of claim 1, wherein a height of the bogie is greater than a height of the knuckle arm.
3. The steer drive of claim 2, wherein the vertical arm is below the bogie.
4. The steer drive of claim 3, wherein said vertical arm is fixed to a truck.
5. A steer drive according to any of claims 1 to 4, wherein a stop is provided on the vertical arm for preventing the knuckle arm tie rod, bogie or knuckle arm from being removed from the vertical arm.
6. The steer drive of any of claims 1-4, wherein the vertical arm is axially movably engaged by its outer peripheral surface with a knuckle arm tie rod, a bogie or a knuckle arm.
7. The steer drive of any of claims 1-4, wherein the vertical arm is in axial sliding engagement with a knuckle arm tie rod, bogie or knuckle arm along the vertical arm.
8. The steer drive of any of claims 1-4, wherein the knuckle arm tie rod comprises two segments, adjacent ends of the two segments being spherically hinged;
one of the two sections of back ends is connected with a knuckle arm ball hinge, and the other is in rotation stopping fit with the bogie;
or one of the two sections of the opposite ends is connected with the ball hinge of the bogie, and the other end is in rotation stopping fit with the knuckle arm.
9. The steer drive of any of claims 1-4, wherein the truck comprises a master arm and a slave arm, a boom linkage disposed between the master arm and the slave arm;
the driving connecting part is arranged on the driving rotating arm;
and the knuckle arm pull rods are arranged between the driving rotating arm and the corresponding knuckle arms and between the driven rotating arm and the corresponding knuckle arms.
10. Special vehicle comprising a frame and a steering transmission, characterized in that the steering transmission is a steering transmission according to any of claims 1-9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020131658 | 2020-01-20 | ||
| CN2020201316587 | 2020-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211568083U true CN211568083U (en) | 2020-09-25 |
Family
ID=72524905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020180129.6U Active CN211568083U (en) | 2020-01-20 | 2020-02-18 | Steering transmission system and special vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211568083U (en) |
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2020
- 2020-02-18 CN CN202020180129.6U patent/CN211568083U/en active Active
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