CN115626096A - Seat adjusting device, cab, and work machine - Google Patents
Seat adjusting device, cab, and work machine Download PDFInfo
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- CN115626096A CN115626096A CN202211282083.9A CN202211282083A CN115626096A CN 115626096 A CN115626096 A CN 115626096A CN 202211282083 A CN202211282083 A CN 202211282083A CN 115626096 A CN115626096 A CN 115626096A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/10—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable tiltable
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- Aviation & Aerospace Engineering (AREA)
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Abstract
The invention relates to the field of seats, and provides a seat adjusting device, a cab and a working machine. The inclination angle detection assembly is used for detecting the inclination angle of the working machine. The seat angle adjustment assembly is used to adjust the tilt angle of a seat of the work machine. The inclination angle detection assembly and the seat angle adjusting assembly are in communication connection with the controller. When the operation machine works on a slope surface, the operation machine can incline, at the moment, the inclination angle detection assembly can detect the inclination angle of the operation machine along the front-back direction and transmit the detected angle signal to the controller, the controller controls the seat angle adjusting assembly to act according to the received angle signal, and the seat angle adjusting assembly can drive the seat to rotate by the same angle in the direction opposite to the inclination direction of the operation machine. In this way, the angle between the seat and the horizontal plane is always kept constant regardless of the angle at which the working machine is operated.
Description
Technical Field
The invention relates to the technical field of seats, in particular to a seat adjusting device, a cab and a working machine.
Background
Since the operation of a working machine such as an excavator is monotonous and the working time is long, the comfort level of the seat often affects the working efficiency of the driver, and the physical health and mental state of the driver are concerned.
The work machine is typically parked on a flat surface before work is initiated, and the seat is adjusted to the proper position after the operator gets on the vehicle. However, in the construction process, the working machine inevitably encounters the situation of working for a long time on a certain slope, and when the working machine stops on the slope, the seat synchronously moves to an inclined state along with the working machine, so that the riding comfort of a driver is greatly influenced.
Disclosure of Invention
The invention provides a seat adjusting device, a cab and a working machine, which are used for solving the problems that in the prior art, when the working machine works on a slope surface, a seat moves to an inclined state along with the working machine, the defect of influence on riding comfort is realized, the effect that the seat adjusts the inclination angle of the seat in real time along with the inclination angle of the operation machine is realized, and the seat is always kept in a posture suitable for a driver to ride.
The present invention provides a seat adjusting device, comprising: an inclination angle detection assembly for detecting an inclination angle of the work machine; a seat angle adjustment assembly for adjusting a tilt angle of a seat of the work machine; the controller is used for receiving angle signals detected by the inclination angle detection assembly and controlling the seat angle adjusting assembly to adjust the inclination angle of the seat according to the angle signals.
According to the seat adjusting apparatus provided by the present invention, the inclination angle detecting assembly includes: the conversion circuit is connected with a variable resistor in series; the inclination angle sensing assembly is connected with the resistance adjusting end of the variable resistor, and when the working machine inclines, the inclination angle sensing assembly can change the position of the resistance adjusting end of the variable resistor under the action of gravity so as to change the resistance value of the variable resistor; a conversion module for converting a current signal flowing through the variable resistor or a voltage signal across the variable resistor into the angle signal.
According to the seat adjusting device provided by the invention, the variable resistor is a linear sliding rheostat, the inclination angle sensing assembly is connected with the sliding sheet of the linear sliding rheostat.
According to the seat adjusting device provided by the invention, the inclination angle sensing assembly comprises a balancing weight and a damping piece, the balancing weight is connected with a sliding sheet of the linear sliding rheostat and can be slidably supported on the operating machine, the damping piece is arranged between the balancing weight and the operating machine, the damping piece is used for providing a reaction force for the balancing weight, and the reaction force is used for balancing the component force of the gravity of the balancing weight in the inclination direction.
According to the seat adjusting device provided by the invention, the damping piece is a spring, one end of the spring is connected with the working machine, the other end of the spring is connected with the front side or the rear side of the balancing weight.
According to the seat adjusting device provided by the invention, the seat angle adjusting assembly is arranged between the bottom of the seat and the working machine, and the seat angle adjusting assembly is used for controlling the front side or the rear side of the seat to lift.
According to the present invention, there is provided a seat adjusting apparatus, further comprising: an information acquisition module for acquiring the information of the user, the information acquisition module is used for acquiring driver information and seat posture information corresponding to the driver information; an information storage module to associate and store the driver information and the seat attitude information.
The seat adjusting device further comprises an identity recognition module, the identity recognition module is in communication connection with the controller, the identity recognition module is used for collecting current driver information, the controller is used for receiving the current driver information and matching seat posture information corresponding to the current driver information, and the controller controls the seat to adjust the posture of the seat according to the seat posture information.
The invention also provides a cab comprising a seat and a seat adjustment device as described above.
The invention also provides a working machine comprising a seat adjustment device as described above or a cab as described above.
The invention provides a seat adjusting device which comprises an inclination angle detecting component, a seat angle adjusting component and a controller. The inclination angle detection assembly is used for being arranged on the operation machine and used for detecting the inclination angle of the operation machine. The seat angle adjusting assembly is used for driving a seat of the working machine to rotate so as to adjust the inclination angle of the seat. The inclination angle detection assembly and the seat angle adjusting assembly are in communication connection with the controller. When the working machine works on a slope surface, the working machine can incline, at the moment, the inclination angle detection component can detect the inclination angle of the working machine along the front and back directions and transmit an angle signal to the controller, the controller controls the seat angle adjusting assembly to move according to the received angle signal, and the seat angle adjusting assembly drives the seat to rotate by the same angle in the direction opposite to the inclination direction of the operation machine. Therefore, no matter what angle the working machine works at, the angle between the seat and the horizontal plane is always kept unchanged, and the riding comfort of a driver is ensured.
Further, the cab and the work machine provided by the present invention have the same advantages as described above because the seat adjusting device is provided as described above.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a first schematic diagram illustrating a first state of a tilt angle detection assembly of a work machine according to the present disclosure when the work machine is positioned on a horizontal surface;
FIG. 2 is a first schematic diagram illustrating a first exemplary configuration of a work machine slope angle detection assembly according to the present disclosure;
FIG. 3 is a first schematic diagram illustrating a first exemplary state of an inclination angle detecting assembly of the present disclosure when the work machine is ascending a slope;
FIG. 4 is a schematic diagram of a second state of the inclination detection assembly of the present disclosure when the work machine is positioned on a horizontal surface;
FIG. 5 is a schematic diagram of a second exemplary embodiment of a work machine slope angle detection assembly according to the present disclosure;
FIG. 6 is a schematic diagram of a second state of the work machine inclination detection assembly according to the present disclosure when ascending a slope;
FIG. 7 is a schematic structural view of a seat angle adjustment assembly provided by the present invention;
FIG. 8 is a schematic structural diagram of a lead screw nut mechanism provided by the invention;
FIG. 9 is a seat provided by the present invention a control flow chart of a memory function;
FIG. 10 is a first flow chart of a seat recline control provided by the present invention;
FIG. 11 is a second flow chart of the seat recliner adjustment control provided by the present invention;
reference numerals:
100: a seat; 210: a power source; 220: an ammeter; 230: a linear slide rheostat; 240: a balancing weight; 250: a spring; 260: a conversion module; 270: a voltmeter; 280: a rotary potentiometer; 290: a constant value resistor; 310: a first link; 320: a second link; 321: a chute; 330: a third link; 340: a fourth link; 351: a motor; 352: a lead screw; 353: a slider; 410: an information acquisition module; 420: an information storage module; 430: an identity recognition module; 440: and a controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The seat adjusting device of the present invention will be described with reference to fig. 1 to 11 a cab and a work machine.
The invention provides a seat adjusting device, which comprises a tilt angle detection assembly, a seat angle adjusting assembly and a controller 440.
A seat 100 is mounted in a cab of the work machine.
The inclination angle detection assembly is arranged in the operation machine and used for detecting the inclination angle of the operation machine along the front-back direction. When the working machine works on flat ground, the angle signal output by the inclination angle detection component is zero. When the operation machine works on a slope, the inclination angle detection assembly can output two different angle signals according to the running direction of the operation machine. When the working machine goes up a slope, the head of the working machine is higher than the tail of the working machine, and at this time, the inclination angle detection component outputs a negative angle signal, for example, when the working machine goes up a slope with an inclination angle of 30 degrees, the inclination angle detection component outputs an angle signal of-30 degrees. The inclination angle detection unit outputs a positive angle signal when the working machine is descending a slope, for example, the inclination angle detection unit outputs an angle signal of +30 degrees when the working machine is descending a slope having an inclination angle of 30 degrees.
The seat angle adjusting assembly is used to adjust the angle of the seat 100 in the front-rear direction.
The inclination angle detection assembly and the seat angle the adjustment assemblies are each communicatively coupled to a controller 440. The controller 440 is configured to receive an angle signal of an inclination angle of the working machine output by the inclination angle detection assembly, and the controller 440 controls the seat angle adjustment assembly to operate according to the received angle signal, and the seat angle adjustment assembly adjusts an angle of the seat 100 according to a control signal of the controller 440, so that the angle of the seat 100 with respect to a horizontal plane is kept unchanged.
For example, when the work machine is ascending a slope having a slope angle of 30 degrees, the seat 100 moves with the work machine and the seat 100 is rotated 30 degrees rearward relative to the horizontal. At this time, the inclination angle detecting assembly outputs an angle signal of-30 degrees to the controller 440, the controller 440 transmits an angle signal of +30 degrees to the seat angle adjusting assembly according to the received angle signal of-30 degrees, the seat angle adjusting assembly controls the seat 100 to rotate forward by 30 degrees, so that the angle of the seat 100 relative to the horizontal plane is unchanged, and the seat 100 is always kept in a more comfortable posture.
The seat adjusting device provided by the invention can detect the inclination angle of the working machine along the front and back directions in real time according to the working surface condition of the working machine, the controller 440 controls the seat angle adjusting assembly to act according to the detected angle signal, and the seat angle adjusting assembly controls the seat 100 to rotate, so that the angle between the seat 100 and the horizontal plane is always kept unchanged, thus the sitting posture of a driver is always kept unchanged, and the driver can sit more comfortably.
In an embodiment of the present invention, the tilt angle detecting assembly includes a converting circuit, a tilt angle sensing assembly and a converting module 260.
The variable resistor is arranged on the conversion circuit, the inclination angle sensing assembly is connected with the resistance adjusting end of the variable resistor, the variable resistor can be driven to incline when the working machine walks on the slope, and at the moment, the inclination angle sensing assembly can drive the resistance adjusting end of the variable resistor to move, so that the resistance value of the variable resistor changes. Further, when the resistance value of the variable resistor changes, the current passing through the variable resistor and the voltage across the variable resistor both change, so that the conversion module 260 can convert the current signal passing through the variable resistor or the voltage signal across the variable resistor into an angle signal corresponding to the current signal or the voltage signal, and output the angle signal to the controller 440, and the controller 440 controls the seat angle adjusting assembly to operate according to the received angle signal, so as to control the seat 100 to rotate.
In one embodiment of the invention, the angle signal is output by detecting a current. The variable resistor may be a linear sliding varistor 230, the power supply 210 and the ammeter 220 may be provided in the conversion circuit, and the power supply 210, the ammeter 220, and the linear sliding varistor 230 may be connected in series. The linear sliding rheostat 230 has a function of changing a resistance value, when the sliding sheet of the linear sliding rheostat 230 slides to different positions of the resistor body, the resistance value of the linear sliding rheostat 230 changes, and then the current value detected by the ammeter 220 changes.
The inclination angle sensing assembly is connected to the sliding piece of the linear slide rheostat 230, and is used for sensing the angle change of the working machine, and when the inclination angle of the working machine changes, the sliding piece of the linear slide rheostat 230 is driven to move along the inclined downward direction.
The tilt sensing assembly may include a weight 240 and a damping member. The weight 240 is connected to the sliding sheet of the linear sliding rheostat 230, and the weight 240 is slidably supported on the chassis of the working machine, the sliding area where the working machine contacts the weight 240 is polished smooth, so as to reduce the friction coefficient between the weight 240 and the working machine as much as possible, or a support plate may be disposed at the position where the working machine contacts the weight, and the upper surface of the support plate is polished smooth, so as to reduce the friction coefficient between the weight 240 and the support plate as much as possible. The damping member is disposed between the weight 240 and the working machine, when the working machine tilts, the linear sliding rheostat 230 tilts synchronously, and the downward component of the gravity of the weight 240 in the tilt direction drives the weight 240 to move downward in the tilt direction, so as to drive the sliding piece to slide.
The damping member provides a reaction force to the weight 240 opposite to the component of the gravity of the weight 240, and as the moving distance of the weight 240 increases, the reaction force gradually increases, and when the reaction force is equal to the component force of the gravity of the weight 240, the weight 240 stops moving. At this time, the resistance of the linear sliding variable resistor 230 is not changed, and the ammeter 220 may output the current passing through the linear sliding variable resistor 230 at this time.
For example, the damping member may be a spring 250, one spring 250 may be provided, and one end of the spring 250 is connected to the work machine and the other end is connected to the front side or the rear side of the weight block 240. When the weight 240 slides, the spring 250 can provide pushing or pulling force to the weight 240, and the larger the length change of the spring 250 is, the larger the pushing or pulling force is provided, and finally the elastic force of the spring 250 is equal to the component force of the gravity of the weight 240.
Or two springs 250 may be provided, one spring 250 being provided between the front side of the weight 240 and the work machine and the other spring 250 being provided between the rear side of the weight 240 and the work machine. When the weight 240 moves, one of the springs 250 provides a pulling force to the weight 240, and the other spring 250 provides a pushing force to the weight 240, and the larger the length change of the springs 250 is, the larger the pushing force or the pulling force is provided, and finally the elastic force of the springs 250 is equal to the component force of the gravity of the weight 240.
The current signal received by the conversion module 260 is from the ammeter 220, and is used to convert the current signal transmitted by the ammeter 220 into a corresponding angle signal, and transmit the angle signal to the controller 440, and the controller 440 controls the seat angle adjustment assembly to operate according to the received angle signal, so as to drive the seat 100 to rotate.
The principle of angle detection of the tilt angle detection assembly will be described below with reference to fig. 1 to 3.
Firstly, calibrating the current and the inclination angle, wherein the calibration principle is as follows:
first, the linear slide rheostat 230 is placed in a horizontal state, the slide sheet is located at the middle position of the resistor body, and the current value at this time is recorded as I 0 I.e. I 0 Corresponding to 0 degrees.
Further, the linear slide rheostat 230 is inclined to the left, and the inclination angle is continuously changed, and a corresponding current value is recorded every time a unit angle is changed. Then, the linear sliding variable resistor 230 is tilted to the right, and the tilt angle is continuously changed, and a corresponding current value is recorded every unit angle.
At the moment, the calibration process of the current and the inclination angle is completed, and each current value corresponds to an angle value.
Referring to fig. 1, when the working machine is operated on a plane, the sliding piece of the linear sliding varistor 230 may be located at a middle position of the resistor body, and at this time, the resistance value of the linear sliding varistor 230 is R 0 The current output by the ammeter 220 is I 0 The corresponding angle value is 0 degrees, the elongation of the spring 250 is 0, and the spring 250 has no elastic force.
The leftward direction in fig. 1 is the front side of the working machine, and the rightward direction is the rear side of the working machine. When the weight 240 drives the sliding piece to move forward, the resistance of the linear sliding rheostat 230 is smaller than R 0 The current value detected by the corresponding ammeter 220 is larger than I 0 On the contrary, when the weight 240 drives the sliding piece to move to the rear side, the resistance of the linear sliding rheostat 230 is larger than R 0 The current value detected by the corresponding ammeter 220 is smaller than I 0 。
Referring to fig. 3, when the working machine is inclined when the working machine is on an upward slope, the working machine is inclined, and the linear sliding rheostat 230 is also inclined, at this time, the weight 240 moves to the rear side of the working machine under the action of the component force of gravity, during the movement, the spring 250 located at the front side of the weight 240 is elongated, the spring 250 located at the rear side of the weight 240 is compressed and shortened, the elastic force of the spring 250 is continuously increased, and when the elastic force of the spring 250 is equal to the component force of gravity of the weight 240, the weight 240 stops moving. At this time, the weight 240 has driven the sliding piece to move backward, the resistance of the linear sliding rheostat 230 changes, and the resistance is R at this time 1 And R is 1 >R 0 The current output by the ammeter 220 is I 1 And I is 1 <I 0 . At this time, the conversion module 260 converts the current signal I 1 Is converted into and 1 corresponding angle signal alpha 1 。
The conversion module 260 then converts the angle signal α 1 Is transmitted to the controller 440, and the controller 440 receives the angle signal α 1 Sending a drive to the seat angle adjustment assembly that drives the seat 100 to rotate-alpha 1 Degree signal, seat angle adjustment assembly controlling seat 100 to rotate-alpha in response to the received control signal 1 To compensate for the angle of rearward rotation of the work machine, so that the angle of the seat 100 to the horizontal remains constant.
For example, when the work machine is ascending on a slope with an angle of 30 degrees, the current value detected by the ammeter 220 is I 1 The conversion module 260 converts the received current signal I 1 Converted into an AND current signal I 1 Corresponding angle signal alpha 1 ，α 1 = 30 degrees. Then the conversion module 260 transmits the angle signal of-30 degrees to the controller 440, the controller 440 sends a signal for driving the seat 100 to rotate by +30 degrees to the seat angle adjustment assembly according to the received angle value, and the seat angle adjustment assembly controls the seat 100 to rotate by +30 degrees, that is, drives the seat 100 to rotate forward by 30 degrees.
When the work machine goes up a slope, the larger the slope is, the larger the inclination angle of the work machine is, the larger the component force of the gravity of the weight 240 is, the larger the sliding distance to the rear side is, and further, the larger the resistance value of the linear slide rheostat 230 is, the smaller the finally output current signal is. Each current signal corresponds to an angle signal, and the smaller the output current signal is, the larger the absolute value of the corresponding angle signal is.
On the contrary, referring to fig. 2, when the working machine is going downhill, the working machine is inclined, and the linear sliding rheostat 230 is also inclined, and at this time, the weight 240 moves to the front side of the working machine under the action of the component force of gravity, during the movement, the spring 250 located at the rear side of the weight 240 is elongated, the spring 250 located at the front side of the weight 240 is compressed and shortened, the elastic force of the spring 250 is continuously increased, and when the elastic force of the spring 250 is equal to the component force of gravity of the weight 240, the weight 240 stops moving. At this time, the weight 240 has driven the sliding piece to move forward, the resistance of the linear sliding rheostat 230 changes, and the resistance at this time is R 2 And R is 2 <R 0 The current output by the ammeter 220 is I 2 And I is 2 >I 0 . At this time, the conversion module 260 converts the current signal I 2 Is converted into and 2 corresponding angle signal alpha 2 。
The conversion module 260 then converts the angle signal α 2 Is transmitted to the controller 440, and the controller 440 receives the angle signal α 2 Issuing a drive-rotation- α of seat 100 to seat angle adjustment assembly 2 Degree signal, seat angle adjustment assembly controlling seat 100 to rotate-alpha in response to the received control signal 2 To compensate for the angle of forward rotation of the work machine, so that the angle of the seat 100 to the horizontal remains constant.
For example, when the work machine is descending a slope at an angle of 30 degrees, the ammeter 220 detects that the current is I 2 The conversion module 260 converts the received current signal I 2 Converted into an AND current signal I 2 Corresponding angle signal alpha 2 ，α 2 = 30 degrees. Then the conversion module 260 transmits the angle signal +30 degrees to the controller 440, the controller 440 sends a signal for driving the seat 100 to rotate by-30 degrees to the seat angle adjustment assembly according to the received angle signal, and the seat angle adjustment assembly controls the seat 100 to rotate by-30 degrees, that is, drives the seat 100 to rotate backwards by 30 degrees.
When the working machine is going downhill, the larger the gradient is, the larger the inclination angle of the working machine is, the larger the component force of the gravity of the weight 240 is, the larger the sliding distance to the front side is, and further, the smaller the resistance value of the linear slide rheostat 230 is, the larger the finally output current signal is. Each current signal corresponds to an angle signal, and the larger the output current signal is, the larger the absolute value of the corresponding angle signal is.
In one embodiment of the present invention, the angle signal is output by detecting a voltage. The variable resistor may also be a rotary potentiometer 280, the conversion circuit may include a power source 210, the rotary potentiometer 280, and a voltmeter 270, and the power source 210 and the rotary potentiometer 280 are connected in series, and the voltmeter 270 is connected in parallel at two ends of the rotary potentiometer 280.
The axis of the resistance adjustment knob of rotary potentiometer 280 is along the left and right direction of the work machine. The weight 240 may be connected to the resistance adjustment knob of the rotary potentiometer 280 through a connection rod, one end of which is connected to the resistance adjustment knob in a rotation stopping manner, and the other end of which extends vertically downward and is connected to the weight 240.
Because the balancing weight 240 is hung below the resistance value adjusting knob, when the operating machine is inclined, the rotating potentiometer 280 is driven to rotate integrally, and due to the effect of the balancing weight 240, the balancing weight 240 can enable the connecting rod to keep a vertical downward state, so that the resistance value adjusting knob is driven to rotate relative to the resistor body of the rotating potentiometer 280, and therefore, the resistance value of the rotating potentiometer 280 is changed. Further, the voltage output from the voltmeter 270 changes.
The voltage signal received by the conversion module 260 is from the voltmeter 270, and the voltage signal is converted into a corresponding angle signal and transmitted to the controller 440, and the controller 440 controls the seat angle adjustment assembly to operate according to the angle signal, so as to drive the seat 100 to rotate.
In an embodiment of the present invention, at least one constant resistor 290 may be connected in series to the conversion circuit, so as to prevent the power supply 210 from being short-circuited when the resistance value of the variable resistor is 0.
In addition, the above-disclosed embodiments of the tilt angle detecting assembly are only exemplary and do not limit the scope of the present invention, and of course, the tilt angle detecting assembly may also use an angle detecting sensor for detecting, or it can be understood that any device that can detect an angle and transmit an angle signal to the seat angle adjusting assembly is within the scope of the present invention.
In one embodiment of the present invention, the seat angle adjusting assembly may be disposed between the bottom of the seat 100 and the working machine, and the seat angle adjusting assembly is used for driving the front end or the rear end of the seat 100 to move up and down to adjust the tilt angle of the seat 100.
For example, the seat angle adjusting assembly described above may be a pneumatic cylinder. The rear side of the seat 100 can be hinged with a working machine, an air cylinder is arranged between the bottom of the front side of the seat 100 and the working machine, the air cylinder is in communication connection with the controller 440, and the controller 440 controls the lifting of the front end of the seat 100 by controlling the stretching and retracting of the air cylinder, so as to realize the adjustment of the inclination angle of the seat 100.
In a preferred embodiment, the seat angle adjusting assembly may be a four-bar mechanism, and may include a first link 310, a second link 320, a third link 330, and a fourth link 340.
When connected, the first link 310 may be connected to the bottom of the seat 100 and the second link 320 may be connected to the work machine and positioned below the seat 100. The top end of the third link 330 is hinged to one end of the first link 310 near the backrest of the seat 100, i.e. the top end of the third link 330 is hinged to the rear end of the first link 310. The bottom end of the third link 330 is hinged to one end of the second link 320 near the backrest of the seat 100. The top end of the fourth link 340 is hinged to one end of the first link 310 away from the backrest of the seat 100, i.e. the top end of the fourth link 340 is hinged to the head end of the first link 310. The bottom end of the fourth link 340 is connected to the second link 320 through a sliding assembly, and the bottom end of the fourth link 340 is hinged to the sliding portion of the sliding assembly.
Wherein, the hinge axes are along the left and right directions of the working machine. The slide assembly may drive the bottom of the fourth link 340 in the fore-and-aft direction of the work machine.
In a further embodiment, the sliding component may be a lead screw nut mechanism, and may include a motor 351, a lead screw 352, and a slider 353, wherein the lead screw 352 extends along the front-back direction of the working machine, the slider 353 is provided with a threaded hole penetrating through the slider 353 along the front-back direction of the working machine, the slider 353 is screwed on the outer side of the lead screw 352, the motor 351 is in transmission connection with the lead screw 352, the lead screw 352 is driven to rotate, and the motor 351 is in communication connection with the controller 440.
In a preferred embodiment, a sliding slot 321 for the sliding block 353 to slide may be disposed on the second connecting rod 320, the sliding block 353 of the lead screw nut mechanism is slidably connected to the sliding slot 321, the lead screw 352 is rotatably connected to the second connecting rod 320, and the lead screw 352 is screwed to a threaded hole on the sliding block 353, so that when the motor 351 drives the lead screw 352 to rotate, the sliding block 353 slides in the sliding slot 321.
Further, the front end of the sliding slot 321 may be located below the hinge point of the fourth link 340 and the first link 310, so that when the sliding block 353 slides to the front end of the sliding slot 321, the fourth link 340 is perpendicular to the second link 320, and at this time, the front end of the seat 100 is at the highest point, and at this time, the angle of backward tilting of the seat 100 is the largest. When the slider 353 slides backward along the slide groove 321, the tilt angle of the seat 100 gradually decreases, and when the first link 310 is in the horizontal state, the position of the slider 353 is located at the midpoint of the slide groove 321. As the slider 353 continues to slide rearward along the slide groove 321, the front end of the seat 100 is inclined downward, and as the slider 353 slides to the rear end of the slide groove 321, the front end of the seat 100 is at the lowest point at which the angle of forward inclination of the seat 100 is at a maximum.
The motor 351 is connected to the controller 440, and the controller 440 can convert the angle signal into a rotation signal of the motor 351, i.e. the control signal, which can control the number of rotations of the motor 351, and further control the moving distance of the slider 353 through the rotation of the motor 351, thereby finally achieving the effect of adjusting the tilt angle of the seat 100.
In one embodiment of the present invention, the seat adjusting apparatus further includes an information collecting module 410 and an information storing module 420.
When the work machine is first used or initialized, driver information, which may include information such as a face image of a driver, iris information, fingerprint information, name information, height, weight, and age, may be collected through the information collection module 410. When the driver information is collected, the driver can manually adjust the posture of the seat 100, for example, adjust the front-rear position of the seat 100, the height of the cushion of the seat 100, the backrest angle, the lumbar support, and the like. When the driver adjusts the posture of the seat 100, the information collecting module 410 collects current seat posture information. Finally, the information collection module 410 associates the driver information with the seat posture information and then transmits the driver information and the seat posture information to the information storage module 420 for storage.
Further, the seat adjusting device provided by the present invention further includes an identification module 430, and the identification module 430 is in communication connection with the controller 440. Before the operator operates the work machine, the identity recognition module 430 first recognizes current operator information, and retrieves seat posture information corresponding to the current operator information from the information storage module 420 through the controller 440, and the controller 440 controls the seat 100 to automatically adjust to a seat posture matching the current operator according to the seat posture information.
The identification module 430 may be one or more of a facial recognition module, an iris recognition module, a fingerprint recognition module, and a card recognition module, and is mainly used for recognizing the identification information of the driver.
The seat 100 itself has adjustment functions such as front-back adjustment, up-down adjustment, backrest angle adjustment, and lumbar support adjustment, and the controller 440 controls the seat 100 to adjust the seat posture.
The information storage module 420 may further store recommended seat posture information, and after the identity recognition module 430 recognizes the current driver information, a suitable seat posture may be recommended according to information such as height, weight, and age of the driver for selection by the driver.
The present invention also provides a cab for a working machine, such as but not limited to an excavator or a loader, which has the same advantages as described above because the seat 100 and the seat angle adjusting device as described above are provided in the cab, and thus, detailed description thereof is omitted.
The present invention also provides a working machine which may be, but is not limited to, an excavator, a loader, etc., and has the same advantages as described above since the seat adjusting device as described above or the cab as described above is provided.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A seat adjustment device, comprising:
an inclination angle detection assembly for detecting an inclination angle of the working machine;
a seat angle adjustment assembly for adjusting a tilt angle of a seat (100) of the work machine;
the controller (440), the inclination detection assembly and the seat angle adjustment assembly are respectively in communication connection with the controller (440), and the controller (440) is used for receiving an angle signal detected by the inclination detection assembly and controlling the seat angle adjustment assembly to adjust the inclination angle of the seat (100) according to the angle signal.
2. The seat adjustment apparatus of claim 1, wherein the tilt angle detection assembly comprises:
the conversion circuit is connected with a variable resistor in series;
the inclination angle sensing assembly is connected with the resistance adjusting end of the variable resistor, and when the working machine inclines, the inclination angle sensing assembly can change the position of the resistance adjusting end of the variable resistor under the action of gravity so as to change the resistance value of the variable resistor;
a conversion module (260), the conversion module (260) being configured to convert a current signal flowing through the variable resistance or a voltage signal across the variable resistance into the angle signal.
3. The seat adjusting apparatus of claim 2, wherein the variable resistor is a linear slide rheostat (230), and the inclination sensing assembly is connected to a slide of the linear slide rheostat (230).
4. The seat adjustment device of claim 3, wherein the tilt sensing assembly comprises a weight (240) and a damping member, the weight (240) is connected to a slide of the linear slide rheostat (230), and the weight (240) is slidably supported on the work machine, the damping member is disposed between the weight (240) and the work machine, the damping member is configured to provide a reaction force to the weight (240), and the reaction force is configured to balance a component of a gravity of the weight (240) in an oblique direction.
5. The seat adjusting apparatus according to claim 4, wherein the damping member is a spring (250), one end of the spring (250) is connected to the working machine, and the other end of the spring (250) is connected to a front side or a rear side of the weight block (240).
6. The seat adjustment arrangement according to claim 1, characterized in that the seat angle adjustment assembly is adapted to be arranged between the bottom of the seat (100) and the work machine, the seat angle adjustment assembly being adapted to control the lifting of the front or rear side of the seat (100).
7. The seat adjustment apparatus of claim 1, further comprising:
an information acquisition module (410), the information acquisition module (410) being configured to acquire driver information and seat attitude information corresponding to the driver information;
an information storage module (420), the information storage module (420) for associating and storing the driver information and the seat attitude information.
8. The seat adjusting apparatus according to claim 7, further comprising an identification module (430), wherein the identification module (430) is communicatively connected to the controller (440), the identification module (430) is configured to collect current driver information, the controller (440) is configured to receive the current driver information and match seat posture information corresponding to the current driver information, and the controller (440) controls the seat (100) to adjust the posture of the seat (100) according to the seat posture information.
9. A cab, characterized by comprising a seat (100) and a seat adjustment device according to any one of claims 1-8.
10. A working machine comprising a seat adjustment device according to any one of claims 1 to 8 or a cab according to claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211282083.9A CN115626096A (en) | 2022-10-19 | 2022-10-19 | Seat adjusting device, cab, and work machine |
| PCT/CN2023/095534 WO2024082630A1 (en) | 2022-10-19 | 2023-05-22 | Seat adjustment apparatus, cab and work machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211282083.9A CN115626096A (en) | 2022-10-19 | 2022-10-19 | Seat adjusting device, cab, and work machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115626096A true CN115626096A (en) | 2023-01-20 |
Family
ID=84906907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211282083.9A Pending CN115626096A (en) | 2022-10-19 | 2022-10-19 | Seat adjusting device, cab, and work machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115626096A (en) |
| WO (1) | WO2024082630A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024082630A1 (en) * | 2022-10-19 | 2024-04-25 | 上海三一重机股份有限公司 | Seat adjustment apparatus, cab and work machine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3047753U (en) * | 1997-10-03 | 1998-04-24 | 栄通信工業株式会社 | Potentiometer for inclinometer |
| JP2008105542A (en) * | 2006-10-25 | 2008-05-08 | Shiroki Corp | Driving mechanism of vehicular power seat |
| KR101696478B1 (en) * | 2010-09-01 | 2017-01-13 | 두산인프라코어 주식회사 | Apparatus for maintaining level of seat of construction machinery |
| CN105774703A (en) * | 2014-12-25 | 2016-07-20 | 中国科学院深圳先进技术研究院 | Comfort level adjusting method and system |
| CN106441076B (en) * | 2016-10-25 | 2019-06-04 | 国动网络通信集团有限公司 | Communication iron tower deforms automatic detection device and detection method |
| CN111376799A (en) * | 2020-05-08 | 2020-07-07 | 三一重机有限公司 | Seat structure and engineering machinery |
| CN113844342B (en) * | 2021-11-09 | 2023-03-24 | 麦格纳座椅研发(重庆)有限公司 | Car seat based on inclination adjustment mechanism |
| CN115626096A (en) * | 2022-10-19 | 2023-01-20 | 上海三一重机股份有限公司 | Seat adjusting device, cab, and work machine |
-
2022
- 2022-10-19 CN CN202211282083.9A patent/CN115626096A/en active Pending
-
2023
- 2023-05-22 WO PCT/CN2023/095534 patent/WO2024082630A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024082630A1 (en) * | 2022-10-19 | 2024-04-25 | 上海三一重机股份有限公司 | Seat adjustment apparatus, cab and work machine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024082630A1 (en) | 2024-04-25 |
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