CN111422246B - Steering axle for industrial vehicle and industrial vehicle with steering axle - Google Patents
Steering axle for industrial vehicle and industrial vehicle with steering axle Download PDFInfo
- Publication number
- CN111422246B CN111422246B CN202010017657.4A CN202010017657A CN111422246B CN 111422246 B CN111422246 B CN 111422246B CN 202010017657 A CN202010017657 A CN 202010017657A CN 111422246 B CN111422246 B CN 111422246B
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- Prior art keywords
- steering
- axle
- sensor device
- rod
- steering rod
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- 230000033001 locomotion Effects 0.000 claims abstract description 28
- 239000000969 carrier Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 29
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000005259 measurement Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
- B62D15/021—Determination of steering angle
- B62D15/0225—Determination of steering angle by measuring on a steering gear element, e.g. on a rack bar
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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
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
-
- 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
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0421—Electric motor acting on or near steering gear
- B62D5/0424—Electric motor acting on or near steering gear the axes of motor and final driven element of steering gear, e.g. rack, being parallel
-
- 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
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0442—Conversion of rotational into longitudinal movement
- B62D5/0445—Screw drives
- B62D5/0448—Ball nuts
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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 present invention relates to a steering axle of an industrial vehicle and an industrial vehicle having the same. In order to detect the steering position of steerable wheels, a positioning measurement device is usually provided on the steering axle. The task of the invention is: a steering axle is provided featuring an improved sensor device for detecting steering angle. For this purpose, a steering axle for an industrial vehicle is proposed, which has an axle body, a first and a second wheel carrier, which are each mounted on the end of the axle body in a pivotable manner, and a steering lever, which is connected to the two wheel carriers in a hinged manner for transmitting a steering movement, and a sensor device for detecting the steering position of the two wheel carriers, the steering lever having a measuring device, wherein the steering lever is moved relative to the sensor device when a steering movement is carried out, and the measuring device is detected by the sensor device for detecting the steering position.
Description
Technical Field
The present invention relates to a steer axle for an industrial vehicle. Furthermore, the invention relates to an industrial vehicle with a steering axle.
Background
It is known to steer the wheels of the rear axle of a forklift truck by means of hydraulic or electric steering devices. In order to detect the steering position of steerable wheels, a position measuring device is usually provided on the steering axle, which detects the relative movement of the steering head of the wheel, for example, when a steering operation is taking place.
The document DE 299 23 365 u1, which may form the closest prior art, discloses an industrial vehicle, in particular a stacker vehicle, having a steering axle and a position measuring device for detecting the steering position of the steerable wheels on the steering axle. In this case, a sensor device is provided on the first axle part of the steering axle in the form of a set of proximity switching elements arranged in a predetermined geometric relationship to one another along the positioning measuring path, which have in each case a magnetic field sensor which is responsive to the proximity of a magnetic positioning encoder element movable along the positioning measuring path. The magnetic position encoder element is arranged on a second axle part of the steering axle which moves relative to the first axle part during steering, wherein a resistor is associated in each magnetic field sensor in the electrical network, which resistor is connected in series with an electronic switch of the associated proximity switch element, which is turned into a low-ohmic on state, when the position encoder element approaches the associated magnetic field sensor, in a voltage divider resistor branch of a voltage divider circuit which provides the network output voltage as a divided voltage.
Disclosure of Invention
The task of the invention is: a steering axle of the initially mentioned type is provided, which is characterized by an improved sensor device for detecting the steering angle. Furthermore, the task of the invention is: an industrial vehicle having a steer axle is presented.
According to the invention, this object is achieved by a steering axle for an industrial vehicle and an industrial vehicle having such a steering axle. Advantageous configurations result from the figures and/or the description.
The steering axle for an industrial vehicle according to the present invention has:
the axle body of the axle is provided with a plurality of axle seats,
a first wheel carrier and a second wheel carrier,
wherein the first wheel carrier and the second wheel carrier are respectively supported on the end part of the axle body in a swinging motion,
the steering rod is provided with a steering wheel,
wherein the steering rod is connected with the two wheel frames in a hinged manner and is used for transmitting steering movement,
sensor means for detecting the steering position of the two carriages,
wherein,
the steering rod has a material measure, wherein the steering rod together with the material measure is moved in the axial direction relative to the sensor device when a steering movement is performed, and the material measure is detected by the sensor device for detecting the steering position.
The subject of the invention is a steering axle configured for and/or suitable for industrial vehicles. In particular, the steering axle is configured as a steered front axle or rear axle of an industrial vehicle. Alternatively, the steering axle can be configured as a driven axle, wherein a drive torque of a drive machine, for example an internal combustion engine and/or an electric motor, of the industrial vehicle can be transmitted and/or transferred to the vehicle wheels of the steering axle. The steering axle may be embodied in particular as a pendulum axle (pendulous axle).
The steering axle includes an axle body having a first wheel carrier and a second wheel carrier, which are supported on the ends of the axle body in a swingable manner, respectively. In particular, the two wheel carriers are each intended to receive a vehicle wheel. Preferably, the two wheel carriers are each mounted on the axle body in a pivotable manner via a pivot joint. The axle body forms, in particular, a rigid part of the steering axle, which part is connected to the chassis of the industrial vehicle.
The steering axle has a steering rod, wherein the steering rod is connected to the two wheel carriers in an articulated manner for transmitting the steering movement. In particular, the two wheel carriers are each connected to one end of a steering rod via a tie rod. In principle, the steering rod can be mechanically coupled to a steering wheel of the industrial vehicle for transmitting the steering movement. However, the steering movement is preferably transmitted electronically from the steering wheel to the tie rod. Thus, so-called "steer-by-wire" can be achieved without a mechanical connection to the steering wheel. In particular, the steering rod and the axle body are arranged coaxially and/or concentrically with respect to one another about the main axis.
Furthermore, the steering axle has a sensor device which is configured and/or adapted to detect the steering position of the two wheel carriers. Preferably, the industrial vehicle has a control device which is configured and/or adapted to determine the steering angle on the basis of the detected steering position. In particular, the control device is used to take into account the information provided by the sensor device about the respective steering position of the wheel carrier or the steered vehicle wheel when transmitting the steering movement between the steering wheel and the steering rod.
Within the scope of the invention, it is proposed that the steering rod has a material measureIn particular, the material measure is used to reproduce relative or absolute position information, which can be detected by the sensor device. In the case of a steering movement, the steering rod with the material measure is moved relative to the sensor device, wherein the sensor device detects the material measure for detecting the steering position. In particular, the sensor device is preferably stationary relative to the axle body during the steering movement. In particular, the sensor device is configured and/or adapted for magnetic and/or optical and/or mechanical and/or electrical and/or acoustic detection of the material measure. The sensor device preferably detects the material measure in a contactless manner. Alternatively, however, it is also conceivable for the sensor device to be in contact with the material measure for detection. The material measure is arranged along or integrated into the steering rod in the axial direction with respect to the main axis at least on the side facing the sensor device.
The advantages of the invention are in particular: a particularly simple and/or stable sensor device can be used with the proposed sensor device. In particular, the sensor device and the material measure can be coordinated with each other such that they are insensitive to dust, moisture, temperature, etc. A further advantage is that the steering position of the two vehicle wheels can be known on the basis of the position of the steering rod detected by the sensor device.
In a preferred embodiment of the invention, it is provided that the sensor device is configured as an incremental encoder, wherein the material measure is configured as an incremental model. In particular, the incremental model may be formed by a plurality of ridges and/or depressions that are evenly spaced apart from each other in an axial direction with respect to the main axis. In particular, the incremental model can be formed by an existing outer contour of the steering rod and/or by a design structural element.
The idea of the invention is therefore: a sensor device is proposed, which is characterized by a particularly simple design. In particular, the sensor device can be retrofitted, wherein the steering position can be ascertained by using existing design structural elements, in particular steering levers.
In a further embodiment, it is provided that the steering rod has a threaded section. In particular, the steering rod is configured as a toothed rack or as a threaded spindle, wherein the threaded section is formed by a corresponding external toothing. The material measure and/or the incremental model is formed by a threaded section. In particular, the sensor device is configured according to the type of gear encoder, wherein the sensor device is configured and/or adapted to detect the thread segments, in particular the thread trapezoids, in a contactless manner.
A sensor device is proposed which can be realized particularly inexpensively, since the material measure/incremental model is formed by an already existing threaded section of the steering rod. Furthermore, the sensor device can be retrofitted to existing steering axles without great effort. Furthermore, a particularly stable material measure is formed by the thread segments.
In a preferred embodiment, it is provided that the steering axle is provided with a steering actuator having an actuator housing. The steering rod is arranged and/or can be arranged in the actuator housing in such a way that the steering actuator is coupled and/or can be coupled to the steering rod in terms of drive technology. The steering actuator can in principle be configured as a hydraulically or preferably electrically actuable steering drive.
The steering rod is arranged in the actuator housing in a material measure at least in sections, wherein the sensor device is fastened stationary, in particular fixed, to the actuator housing relative to the housing. Preferably, the steering rod is guided through the actuator housing in an axial direction with respect to the main axis. The sensor device is mounted in particular in a form-locking manner (formschiussig) and/or in a force-locking manner (kraftschiussig) on the actuator housing. Preferably, the sensor means is held firmly on the actuator housing as the steering rod moves along the main axis.
The conception of the invention is as follows: a sensor device is proposed, which is characterized by a particularly simple assembly. By arranging the sensor device on the actuator housing, it is furthermore possible to provide an actuator housing which is suitable for differently configured steering axles, wherein the sensor device is always arranged opposite the steering rod for detecting the steering position.
In a specific embodiment, it is provided that the actuator housing has a first housing section and a second housing section. In particular, the first and the second housing section can be formed as two separate housing sections which are connected to one another in a form-locking and/or force-locking and/or friction-locking manner (reibschkussig). The first and/or the second housing section is preferably formed at least approximately in the shape of a hollow cylinder in the rough shape. The sensor device is arranged radially with respect to the main axis in one of the two housing sections. In particular, a radial arrangement is to be understood as meaning a radial orientation of the sensor device with respect to the main axis in the direction of the steering rod, in particular in the direction of the material measure. In particular, the steering rod is guided at least in sections through the two housing sections in the axial direction with respect to the main axis. Preferably, the first and/or the second housing section is arranged coaxially and/or concentrically with the steering rod about the main axis.
In a further embodiment, it is provided that at least one of the two housing sections has a sensor receptacle for receiving the sensor device, wherein the sensor device is accommodated in the sensor receptacle in a manner that prevents falling out. In particular, the sensor device can be held in a form-locking and/or force-locking manner in the sensor receptacle. In particular, the sensor device can be arranged in the sensor receptacle in a manner movable in a radial direction with respect to the main axis, so that, for example, the radial distance between the steering rod and the sensor device can be adjusted.
A sensor device is therefore proposed, which is characterized by a particularly simple assembly. Furthermore, a correct arrangement of the sensor device can be ensured by the sensor receptacle.
In one refinement, it is provided that the sensor device is configured as an opening which is introduced radially into the first housing section. In particular, the opening is configured as a hole or a notch. Preferably, the sensor receptacle forms a contour fit to the sensor device. The sensor device is accommodated in a sensor receptacle configured as an opening in such a way that it protrudes in sections into the first housing section and/or is arranged opposite the threaded section of the steering rod. For adjusting the radial distance in the radial direction, the sensor device may be arranged in the opening in a movable manner with respect to the main axis.
In a specific embodiment, the steering actuator has an electric motor and a transmission. In particular, the electric motor is connected to the control device in signal technology, wherein the steering position detected by the sensor device is taken into account when controlling the electric motor. For transmitting the steering movement, the electric motor is connected to the steering rod via a transmission. The electric motor may be arranged coaxially and/or concentrically and/or radially and/or axially parallel to the steering rod about the main axis. In particular, the electric motor is coupled to the steering rod via at least one gear stage or precisely one gear stage. Preferably, the transmission is accommodated in the first and/or second housing section. In principle, the transmission can be designed, for example, as a bevel gear or a worm gear, so that the electric motor can be arranged at an angle to the steering rod and/or in the direction of travel of the industrial vehicle. Alternatively, the transmission may be configured, for example, as a spur gear. The electric motor can thus be oriented parallel to the steering rod and/or transversely to the direction of travel of the industrial vehicle.
In a preferred embodiment, the steering rod is configured as a threaded spindle. In particular, the steering rod has a ball screw thread, a trapezoidal screw thread, or the like as the screw thread section. The transmission has a spindle nut which engages with a threaded section of a steering rod configured as a threaded spindle. In particular, the spindle nut is arranged coaxially and/or concentrically with the steering rod. Alternatively, a plurality of rolling elements, in particular balls, may be arranged between the steering rod and the threaded spindle. The electric motor is connected to a spindle nut in a driving manner, wherein the spindle nut is twisted about the main axis when the steering movement is transmitted by the electric motor, so that a translational movement of the steering rod is performed and the two wheel carriers are pivoted.
Another subject of the invention relates to an industrial vehicle with a steer axle as described above. The industrial vehicle is constructed as a four-wheeled forklift. In particular, electromechanical steering is performed by steering the axle. In the case of the proposed electric steering of the steering axle, the steering movement can preferably be effected by an electric motor. In this case, the steering angle is preferably monitored by detecting the position of the steering rod, wherein the control device recognizes the steering angle and uses the steering angle to control the electric motor.
Drawings
Other features, advantages and effects of the present invention will be apparent from the following description of the preferred embodiments of the invention. Wherein:
fig. 1 shows a schematic cross-sectional view of a steering axle for an industrial vehicle as an embodiment of the present invention.
Detailed Description
Fig. 1 shows a schematic cross-section of a steering axle 1 for an industrial vehicle. The industrial vehicle is configured, for example, as a four-wheeled forklift, wherein the steering axle 1 forms the steered rear axle of the four-wheeled forklift.
The steering axle 1 has an axle body 2 which forms a rigid part of the steering axle 1 and can be firmly connected to the chassis of the industrial vehicle. With respect to the main axis H, wheel carriers 3a, 3b (only schematically shown) are arranged at both axial ends of the axle body 2, which are fastened to the axle body 2 in a pivotable manner via a swivel joint (not shown). The two wheel carriers 3a, 3b are used to receive the wheels of a four-wheeled forklift respectively.
For transmitting the steering movement, the steering axle 1 has a steering rod 4, wherein the steering rod 4 connects the two wheel carriers 3a, 3b to one another in an articulated manner. For this purpose, for example, the two wheel carriers 3a, 3b can each be connected in an articulated manner to one axial end of the steering rod 4 via a tie rod. For example, the main axis H is defined by the longitudinal axis of the steering rod 4. The steering rod 4 can be moved in the axial direction for transmitting the steering movement, so that the translational movement of the steering rod 4 is converted into a steering movement of the two wheel carriers 3a, 3b via the associated rotary joint.
In order to generate the steering movement, the steering axle 1 has a steering actuator 5, wherein the steering actuator 5 is coupled to the steering rod 4 in terms of drive technology. The steering actuator 5 comprises an electric motor 6 and a transmission 7, wherein the electric motor 6 is coupled to the steering rod 4 via the transmission 7 in terms of transmission technology. Thus, electromechanical steering of the steered axle 1 is achieved by the steering actuator 5.
For transmitting the steering movement to the steering rod 4, the gear 7 has a threaded spindle 8, while the steering rod 4 has a threaded section 9, wherein the threaded spindle 8 is arranged coaxially and/or concentrically to the threaded section 9 and engages with the threaded section. For example, the threaded section 9 is configured as a ball screw, wherein a plurality of balls are arranged between the threaded spindle 8 and the steering rod 4. The electric motor 6 can be coupled to the threaded spindle 8 via at least one gear stage, wherein the electric motor 6 axis is arranged parallel to the main axis H. For carrying out the steering movement, the electric motor 6 twists the threaded spindle 8 about the main axis H, wherein the steering rod 4 is moved in translation, in particular in an axial direction with respect to the main axis H, and the two wheel carriers 3a, 3b are pivoted.
The steering actuator 5 has an actuator housing 10 for accommodating the electric motor 6 and the transmission 7. The actuator housing 10 is formed in two parts and has a first and a second housing section 10a, 10b. The two housing sections 10a, 10b are formed at least approximately in the shape of a hollow cylinder when viewed in rough form. For example, the two housing sections 10a, 10b are screwed to one another in the axial direction about the main axis H. The steering rod 4 is guided through the two housing sections 10a, 10b in the axial direction with respect to the main axis H, wherein the steering rod 4 protrudes from the first or second housing section 10a, 10b on the end side and is connected to the respective wheel carrier 3a, 3 b. In order to prevent contamination, on the end sides of the two housing sections 10a, 10b, bellows 11a, 11b are each arranged, which are each connected to an end of the steering rod 4.
The transmission 7 is arranged inside the actuator housing 10, in particular between the two housing sections 10a, 10b, wherein the electric motor 6 is externally mounted on the actuator housing 10, in particular on the first housing section 10a, and protrudes at least in sections into the actuator housing 10 for coupling with the transmission 7. The threaded spindle 8 is supported on the inner circumference of the first housing section 10a by means of a bearing arrangement, in particular a roller bearing.
The steering axle 1 has a sensor device 12, wherein the sensor device 12 is used to detect the steering position of the two wheel carriers 3a, 3 b. The first housing section 10a has a sensor receptacle 13 for receiving the sensor device 12. The sensor receptacle is configured as an opening which is introduced radially with respect to the main axis H, wherein the sensor device 12 protrudes radially into the actuator housing 10 via the sensor receptacle 13 and is arranged at a distance from the threaded section 9. The steering rod 4 has a material measure 14, wherein, when a steering movement is carried out, the steering rod 4 moves relative to the sensor device 12 and is detected by the sensor device 12 via the material measure 14. For example, the sensor device 12 may be configured in the manner of a gear encoder, wherein the threaded section 9 forms the material measure 14. The sensor device 12 can directly detect the position of the steering rod 4 via the pitch of the threaded section 9. Thus, when the steering actuator 5 is adaptive, then four-wheel steering angle monitoring can be achieved, wherein the steering actuator 5 with the sensor device 12 can be sold to different manufacturers with different pendulum axle systems.
The sensor device 12 and the electric motor 6 are connected to a control device 15 (shown schematically) of the industrial vehicle in signal technology. The control device 15 is used for controlling the electric motor 6 based on the detected steering position. For example, a detected steering position of the steering rod 4 can be taken into account when transmitting a steering movement from the electric motor 6 to the steering rod 4, wherein different steering positions (steering angles) are monitored by the sensor device 12.
For example, the steering axle 1 may be electrically connected to a steering wheel 16 of a four-wheeled forklift, which is only schematically shown, wherein a so-called steer-by-wire steering is performed. For this purpose, the steering wheel 16 is connected to the electric motor 6 via a control device 15 in signal technology for transmitting steering commands.
List of reference numerals
1. Steering axle
2. Axle body
3a, 3b wheel frame
4. Steering rod
5. Steering actuator
6. Electric motor
7. Transmission device
8. Screw nut
9. Threaded section
10. Actuator housing
10a, 10b housing sections
11a, 11b bellows
12. Sensor device
13. Sensor housing
14. Material measuring tool
15. Control device
16. Steering wheel
H main axis
Claims (10)
1. Steering axle (1) for an industrial vehicle, the steering axle having:
an axle body (2),
a first and a second wheel frame (3 a, 3 b),
wherein the first and the second wheel carrier (3 a, 3 b) are each mounted on the end of the axle body (2) in a pivotable manner,
a steering rod (4),
wherein the steering rod (4) is connected with the two wheel frames (3 a, 3 b) in a hinged manner for transmitting steering movements,
sensor means (12) for detecting the steering position of the two wheel carriers (3 a, 3 b),
characterized in that the steering rod (4) has a material measure (14), wherein the steering rod (4) together with the material measure (14) is moved in the axial direction relative to the sensor device (12) when a steering movement is carried out, and the material measure (14) is detected by the sensor device (12) for detecting the steering position,
wherein the steering rod (4) has a threaded section (9), wherein the material measure (14) is formed by the threaded section (9),
wherein the sensor device (12) is arranged in a sensor receptacle (13) in a manner that is movable in a radial direction with respect to the main axis (H) such that the radial distance between the steering rod (4) and the sensor device (12) can be adjusted.
2. Steering axle (1) according to claim 1, characterized in that the sensor device (12) is configured as an incremental encoder, wherein the material measure (14) is configured as an incremental model.
3. Steering axle (1) according to claim 2, characterized in that the incremental model is formed by the threaded section (9).
4. A steering axle (1) according to any one of claims 1 to 3, characterized by a steering actuator (5) with an actuator housing (10), wherein a steering rod (4) with a material measure (14) is arranged at least in sections within the actuator housing (10), and wherein the sensor device (12) is fastened stationary on the actuator housing (10).
5. Steering axle (1) according to claim 4, characterized in that the actuator housing (10) has a first and a second housing section (10 a, 10 b), wherein the sensor device (12) is arranged at least in sections on one of the two housing sections (10 a, 10 b) in a radial direction with respect to the main axis (H).
6. Steering axle (1) according to claim 4, characterized in that the actuator housing (10) has a sensor receptacle (13) for receiving the sensor device (12), wherein the sensor device (12) is accommodated in the sensor receptacle (13) in a fall-off-proof manner.
7. Steering axle (1) according to claim 6, characterized in that the sensor receptacle (13) is configured as an opening which leads radially into the actuator housing (10), wherein the sensor device (12) is accommodated in the sensor receptacle (13) which is configured as an opening, such that the sensor device (12) protrudes at least in sections into the actuator housing (10) and/or is arranged opposite a material measure (14) of the steering rod (4).
8. Steering axle (1) according to claim 4, characterized in that the steering actuator (5) has an electric motor (6) and a transmission (7), wherein the electric motor (6) is connected to the steering rod (4) via the transmission (7) in a driving manner for transmitting the steering movement.
9. Steering axle (1) according to claim 8, characterized in that the steering rod (4) is configured as a threaded spindle, wherein the transmission (7) has a spindle nut (8) which engages with a threaded section (9) of the steering rod (4) configured as a threaded spindle.
10. Industrial vehicle with a steering axle (1) according to any of claims 1 to 9, characterized in that the industrial vehicle is configured as a four-wheeled fork lift truck.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019200178.5A DE102019200178A1 (en) | 2019-01-09 | 2019-01-09 | Steering axle for an industrial truck and industrial truck with the steering axle |
| DE102019200178.5 | 2019-01-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111422246A CN111422246A (en) | 2020-07-17 |
| CN111422246B true CN111422246B (en) | 2024-01-30 |
Family
ID=71104618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010017657.4A Active CN111422246B (en) | 2019-01-09 | 2020-01-08 | Steering axle for industrial vehicle and industrial vehicle with steering axle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111422246B (en) |
| DE (1) | DE102019200178A1 (en) |
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| JP2006188202A (en) * | 2004-12-06 | 2006-07-20 | Nissan Motor Co Ltd | Steering device for vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19750585A1 (en) * | 1997-11-17 | 1999-06-02 | Deutsch Zentr Luft & Raumfahrt | Actuator for correcting a steering angle entered via the steering wheel of a vehicle onto the wheels of a steered vehicle axle |
| DE29923362U1 (en) | 1999-01-12 | 2000-08-24 | Steinbock Boss GmbH Fördertechnik, 85368 Moosburg | Position measuring device and industrial truck equipped with it |
| JP2006130940A (en) * | 2004-11-02 | 2006-05-25 | Toyoda Mach Works Ltd | Steer-by-wire system |
| DE102005035872A1 (en) * | 2005-07-30 | 2007-02-01 | Bayerische Motoren Werke Ag | Electric motor e.g. hollow shaft electric motor, operated adjusting unit for double track motor vehicle, has adjusting drive transferable on two wheels over threaded spindle, where electric motor is designed as hollow shaft electric motor |
| DE102008032046A1 (en) * | 2008-07-08 | 2010-01-14 | Magna Powertrain Ag & Co Kg | Calibration method for a position determination system of a rear-steering actuator |
| DE102012212608A1 (en) * | 2012-07-18 | 2014-02-06 | Schaeffler Technologies AG & Co. KG | Actuator for purely, electronically controlled electro-mechanical steering of e.g. tractor, has hollow shaft that is adapted to enclose spindle nut completely, by rotation of hollow shaft by axial movement of threaded spindle |
| DE102013213328A1 (en) * | 2013-07-08 | 2015-01-08 | Schaeffler Technologies Gmbh & Co. Kg | Mobile steerable work machine |
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2019
- 2019-01-09 DE DE102019200178.5A patent/DE102019200178A1/en active Pending
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2020
- 2020-01-08 CN CN202010017657.4A patent/CN111422246B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4730686A (en) * | 1986-04-08 | 1988-03-15 | Honda Giken Kogyo Kabushiki Kaisha | Motor-driven power steering system and method of controlling same |
| JPH05116640A (en) * | 1991-09-25 | 1993-05-14 | Nissan Motor Co Ltd | Four-wheel steering device |
| JP2003335249A (en) * | 2002-05-20 | 2003-11-25 | Toyoda Mach Works Ltd | Electric power steering device |
| JP2006111032A (en) * | 2004-10-12 | 2006-04-27 | Toyota Motor Corp | Steering system |
| JP2006188202A (en) * | 2004-12-06 | 2006-07-20 | Nissan Motor Co Ltd | Steering device for vehicle |
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| DE102019200178A1 (en) | 2020-07-09 |
| CN111422246A (en) | 2020-07-17 |
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