CN114715014A - Expansion cabin control system and method - Google Patents
Expansion cabin control system and method Download PDFInfo
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- CN114715014A CN114715014A CN202210452157.2A CN202210452157A CN114715014A CN 114715014 A CN114715014 A CN 114715014A CN 202210452157 A CN202210452157 A CN 202210452157A CN 114715014 A CN114715014 A CN 114715014A
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- 108010066114 cabin-2 Proteins 0.000 description 40
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- 238000006073 displacement reaction Methods 0.000 description 7
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- 230000005484 gravity Effects 0.000 description 4
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/14—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for both lifting and manoeuvring
- B60S9/205—Power driven manoeuvring fittings, e.g. reciprocably driven steppers or rotatably driven cams
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
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Abstract
The invention discloses an expansion cabin control system which is characterized by comprising a vehicle body, expansion cabins on two sides, a telescopic mechanism, a first supporting leg, a second supporting leg, a control device and a level sensor, wherein the expansion cabins are connected with the vehicle body in a sliding mode, the first supporting leg is connected with the bottom of the vehicle body, the second supporting leg is connected with the bottom of the expansion cabin, the telescopic mechanism comprises a motor and two telescopic rods, the motor is connected with the two telescopic rods and is positioned between the expansion cabins on the two sides in the vehicle body, the telescopic end of each telescopic rod is connected with the expansion cabin, the level sensor is connected with the vehicle body, and the control device is connected with the telescopic mechanism, the first supporting leg, the second supporting leg and the level sensor. The invention also discloses a method for adopting the expansion cabin control system, and a plurality of actions are carried out simultaneously. The invention has the beneficial effects that: the expansion synchronization of the expansion cabin is improved, the overall stability is improved, and the expansion time is greatly shortened.
Description
Technical Field
The invention relates to the field of motor support, in particular to a control system and a control method for an expansion cabin.
Background
The expansion cabin is characterized in that the size of the non-expansion square cabin is the same during transportation, the expansion cabin is expanded during working, and the use area is increased. The expansion cabin is widely applied from the civil expansion cabin which is suitable for various transportation and has the function of quick loading and unloading to the expansion cabin which is used as a loading carrier and a working space of a weapon equipment system, a command communication center, a technical support device and various military personnel, but the technical requirement on the expansion cabin is higher and higher, especially in the aspect of mobile security.
The expansion of the traditional expansion cabin mostly adopts the following forms: 1. mechanical hand formula, like chinese patent CN103318273A, an extension automobile body and motor vehicle, close the extension cabin including fixed cabin, the extension cabin comprises roof, curb plate, front and back end plate and bottom plate, bottom plate position folded sheet, fixed cabin one side or both sides are located to the extension cabin, the extension cabin is supported by the guide rail, the guide rail comprises fixed guide and movable guide, fixed guide locates on the fixed cabin, movable guide locates on the extension cabin to support the extension cabin and remove along fixed guide. The manual operation part and the transmission mechanical part are arranged in the expansion vehicle body, the transmission mechanism is driven to push and pull the expansion cabin by manually controlling the crank handle, the expansion cabin is unfolded or folded on the guide rail, the mode is labor-consuming and time-consuming, a crane is needed to hoist the expansion cabin into the vehicle-mounted platform during transportation, and the maneuverability is poor; 2. although the electromechanical expansion cabin saves manpower, single-phase and three-phase asynchronous motors are mostly adopted, and the expansion cabin can generate great shock impact due to inertia at the moment of starting and stopping and can generate adverse effects on some high-precision instruments in the cabin; 3. although the mobility of the movable vehicle-mounted expansion cabin is improved, when the left and right square cabins are expanded, the expansion speed of the left and right square cabins is inconsistent, the gravity center of a vehicle body is easy to shift, the vehicle body can be turned on laterally in serious situations, after the expansion cabin is expanded in place, the vehicle body is suspended, the stability is poor, and at least 2 or more driving motors for the expansion function of the square cabins are needed, so that the complexity of the structure is increased, and the weight of the vehicle body is also increased.
The control mode that current expansion cabin expandes and draws in, like chinese patent CN111591195A, an automobile expansion cabin, including the automobile body, the automobile body assembles on vehicle chassis, the automobile body is equipped with extension device, the automobile body includes main skeleton, two expansion frame and flitch, the expansion frame symmetry is located the both sides end of main skeleton, the downside of main skeleton is equipped with the bearing arm, the bottom of expansion frame is equipped with the driving arm, the driving arm is relative the bearing arm transversely sets up, extension device include the extension motor, with the transfer line that the extension motor is connected, with a plurality of transmission gear case that the transfer line is connected, transmission gear case locates on the bearing arm, be equipped with the driving tooth on the driving arm, the driving tooth with the driving arm meshing. When the lifting device is used, when the expansion frames at the two side ends extend to the maximum value towards the two side ends, the lifting motors are driven, so that the four lifters connected with the lifting motors descend in the same direction and at the same speed, and the main framework floor is flush with the expansion frame floor. The extension of the expansion cabin is performed in sequence with the lifting of the supporting legs, the expansion cabin is slow in expansion working speed in the mode, and under certain working conditions, time is very precious, so that a technology capable of shortening the working time is urgently needed.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms part of the prior art that is already known to a person skilled in the art.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to solve the problem that the expansion of the existing expansion cabin is not stable enough and the expansion speed is slow.
The invention solves the technical problems through the following technical means:
expansion cabin control system, including expansion cabin, telescopic machanism, first supporting leg, second supporting leg, controlling means, the level sensor of automobile body, both sides, expansion cabin sliding connection the automobile body, first supporting leg is connected the bottom of automobile body, the second supporting leg is connected the expansion cabin bottom, telescopic machanism includes motor, two telescopic links, the motor is connected the automobile body is internal and lie in between the expansion cabin of both sides, the motor is connected two the telescopic link, the expansion cabin is connected to the flexible end of telescopic link, the level sensor is connected the automobile body, controlling means connects telescopic machanism first supporting leg the second supporting leg the level sensor.
The two telescopic rods are simultaneously controlled by one motor to stretch and retract, so that the expansion cabins on two sides can be simultaneously stretched and withdrawn, the phenomenon that the vehicle body inclines towards one direction due to the fact that the expansion cabin on one side is too long or the expansion cabin on one side is too short is avoided, and the vehicle body can be laterally turned when the vehicle body is serious; the invention improves the synchronism of the expansion cabin and the overall stability.
Preferably, the bottom surface of automobile body includes along the at least two guide rails that automobile body width direction set up, the guide rail is located telescopic machanism's both sides, the bottom of expansion cabin includes at least two sliders, slider sliding connection the guide rail.
The transmission form of the sliding block and the guide rail is adopted, so that the frictional resistance is greatly reduced, and the transmission efficiency is improved.
Preferably, the first supporting legs are at least four, four first supporting legs are connected with four corners of the vehicle body, the second supporting legs are at least four, and each expansion cabin is at least connected with two second supporting legs.
The first support leg is used for leveling the vehicle body, and the purpose of leveling is to ensure that equipment and personnel in the vehicle can work in a stable environment during parking. The second supporting legs are used for supporting the expansion cabin which is expanded in place, and the distance between the expansion cabin and the vehicle body after the expansion cabin is expanded in place is long, so that the vehicle body is easily inclined to one direction, and the cabin body can be effectively prevented from shaking when people take a rest on the upper berth and the lower berth and work at the working point of the vehicle body to and fro.
Preferably, still include reduction gear, pull rod, the retarder connection the automobile body, the pull rod is connected the expansion cabin, the motor is servo motor, the reduction gear is connected to the output of motor, the reduction gear has two outputs, the telescopic link is connected to the output of reduction gear, the end connection pull rod of telescopic link.
The expansion cabin is connected with the front and the back by the pull rod, and the advantage of the connection is that the front and back speed of the single expansion cabin can be kept consistent.
Preferably, the expansion cabin further comprises a bed and a floor, the bed is connected with the side wall of the expansion cabin, and the floor is connected with the bottom plate of the expansion cabin.
The invention also discloses a method for adopting the expansion cabin control system, which comprises the following steps of obtaining the distance between the expansion cabin and a vehicle body when the expansion cabin is expanded, and setting the movement speed and time of a motor according to the distance;
expanding the first stage: the control device controls the motor to act, the expansion cabin extends towards two sides, the first supporting leg is controlled to act, and the second supporting leg acts and waits for reaching the position above the ground;
and expanding the second stage: the first support leg falls to the ground, and the expansion cabin extends in place; detecting the vehicle body through a level sensor, and controlling the first support leg to be leveled by a control device until the leveling of the first support leg is finished;
and expanding the third stage: after the first supporting leg is leveled, the control device controls the second supporting leg to quickly fall to the ground.
The expansion cabin control system comprises a plurality of actions of detecting the extension and landing of the first supporting leg, leveling, expanding the expansion cabin, extending the second supporting leg and landing, wherein the actions are performed simultaneously, are detected mutually, are self-locked mutually, and improve the working efficiency. After the expansion cabin is expanded in place, the first support leg can execute a leveling strategy, so that the aim of leveling the vehicle body in the process of stable gravity center is fulfilled, the accuracy after leveling is guaranteed, the landing detection of the second support leg cannot be carried out when the first support leg is not leveled, and if the second support leg is leveled after landing, the appearance of a virtual leg of the second support leg is caused, namely the second support leg does not actually land to play a supporting role, and the expansion cabin is still in a suspended state; therefore, after the expansion cabin is expanded in place, the first supporting leg performs leveling, the second supporting leg is guaranteed to be capable of falling to the ground, and the stability of the expansion cabin and even the whole vehicle body is improved.
Preferably, the extension distance of the extension cabin to the two sides is S, the operation process of the extension cabin comprises an acceleration stage, a constant speed stage and a deceleration stage, and the speed of the constant speed stage is Vmax.
The expansion mode of acceleration, uniform speed and deceleration is adopted, so that the vibration generated at the moment of starting and stopping when the expansion cabin is expanded or retracted can be avoided; the controller can accurately calculate the displacement of the expansion cabin during expansion or retraction at the moment through the pulse number fed back by the servo motor, and a sensor or a travel switch for judging the expansion in place and the retraction in place of the expansion cabin is not needed.
Preferably, after the expansion cabin is extended to the proper position, the bed in the expansion cabin starts to be unfolded, and meanwhile, the floor in the expansion cabin is lifted.
Preferably, when the expansion cabin needs to be withdrawn, the control device controls the motor to act, the expansion cabin is withdrawn towards the middle, the second supporting leg is withdrawn at the same time, and the first supporting leg is withdrawn.
Preferably, when the expansion cabin needs to be withdrawn, the floor in the expansion cabin descends, meanwhile, the bed in the expansion cabin is withdrawn, and after the floor and the bed are finished, the expansion cabin begins to be withdrawn.
The invention has the advantages that:
(1) the two telescopic rods are simultaneously controlled by one motor to stretch and retract, so that the expansion cabins on two sides can be simultaneously stretched and withdrawn, the phenomenon that the vehicle body inclines towards one direction due to the fact that the expansion cabin on one side is too long or the expansion cabin on one side is too short is avoided, and the vehicle body can be laterally turned when the vehicle body is serious; the invention improves the synchronism of the expansion cabin and the overall stability;
(2) the transmission form of the sliding block and the guide rail is adopted, so that the frictional resistance is greatly reduced, and the transmission efficiency is improved;
(3) the first supporting leg is used for leveling the vehicle body, and the purpose of leveling is to ensure that equipment and personnel in the vehicle can work in a stable environment during parking. The second supporting legs are used for supporting the expansion cabin which is expanded in place, and the distance between the expansion cabin and the vehicle body is longer after the expansion cabin is expanded in place, so that the vehicle body is easy to incline towards one direction, and the cabin body can be effectively prevented from shaking when personnel take a rest from top to bottom to the working point of the vehicle body to work back and forth;
(4) the expansion cabins are connected together by the pull rods in the front and back directions, so that the advantage that the front and back speeds of a single expansion cabin can be kept consistent;
(5) the expansion cabin control system comprises a plurality of actions of detecting the extension and landing of the first supporting leg, leveling, expanding the expansion cabin, extending the second supporting leg and landing, wherein the actions are performed simultaneously, are detected mutually, are self-locked mutually, and improve the working efficiency. After the expansion cabin is expanded in place, the first support leg can execute a leveling strategy, so that the aim of leveling the vehicle body in the process of stable gravity center is fulfilled, the accuracy after leveling is guaranteed, the landing detection of the second support leg cannot be carried out when the first support leg is not leveled, and if the second support leg is leveled after landing, the appearance of a virtual leg of the second support leg is caused, namely the second support leg does not actually land to play a supporting role, and the expansion cabin is still in a suspended state; therefore, after the expansion cabin is expanded in place, the first supporting leg performs leveling, the second supporting leg can be guaranteed to fall to the ground, and the stability of the expansion cabin and even the whole vehicle body is improved;
(6) the expansion mode of acceleration, uniform speed and deceleration is adopted, so that the vibration generated at the moment of starting and stopping when the expansion cabin is expanded or retracted can be avoided; the controller can accurately calculate the displacement of the expansion cabin during expansion or retraction at the moment through the pulse number fed back by the servo motor, and a sensor or a travel switch for judging the expansion in place and the retraction in place of the expansion cabin is not needed.
Drawings
FIG. 1 is a schematic structural diagram of an expansion cabin control system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a vehicle body according to a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an expansion cabin according to an embodiment of the present invention;
FIG. 4 is a diagram showing the relationship between the moving speed and the displacement of the expansion chamber in the second embodiment of the present invention;
FIG. 5 is a schematic diagram of an expansion process in accordance with a second embodiment of the present invention;
FIG. 6 is a flowchart of an expanding process in a second embodiment of the invention;
FIG. 7 is a schematic diagram of the pull-back process according to the second embodiment of the present invention;
FIG. 8 is a flowchart of a revocation process in accordance with a second embodiment of the present invention;
the reference numbers in the figures:
1. a vehicle body; 11. a guide rail;
2. an expansion cabin; 21. a slider; 22. a pull rod;
3. a telescoping mechanism; 31. a motor; 32. a speed reducer; 33. a telescopic rod;
4. a first support leg; 5. a second support leg;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. 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 first embodiment is as follows:
as shown in fig. 1, the expansion cabin control system comprises a vehicle body 1, expansion cabins 2 on two sides, a telescopic mechanism 3, a first support leg 4, a second support leg 5, a control device and a horizontal sensor; the level sensor is connected with the vehicle body 1, and the control device is connected with the telescopic mechanism 3, the first supporting leg 4, the second supporting leg 5 and the level sensor.
As shown in fig. 2, the entire vehicle body 1 has a rectangular cabin structure with two empty sides, the bottom surface of the vehicle body 1 includes at least two guide rails 11 arranged along the width direction of the vehicle body 1, in this embodiment, four guide rails 11 are evenly distributed on two sides of the vehicle body 1, and the guide rails 11 are located on two sides of the telescopic mechanism 3. The number of the first support legs 4 is at least four, and the four first support legs 4 are connected with four corners of the bottom surface of the vehicle body 1. The first support leg 4 is used for leveling the vehicle body 1, and the leveling purpose is to ensure that equipment and personnel in the vehicle can work in a stable environment during parking.
As shown in fig. 3, the expansion cabin 2 is a rectangular cabin structure with at least one open side, the bottom of the expansion cabin 2 includes two sliding blocks 21, the sliding blocks 21 extend along the width direction of the expansion cabin 2, the length of the sliding blocks 21 is adapted to the length of the guide rail 11, and the sliding blocks 21 are slidably connected to the guide rail 11. In this embodiment, the expansion cabin 2 is slidably connected to the vehicle body, and a transmission form of the sliding block 21 and the guide rail 11 is adopted, so that the frictional resistance is greatly reduced, and the transmission efficiency is improved. The number of the second supporting legs 5 is at least two, and the two second supporting legs 5 are connected with the bottom, close to the outer side, of the expansion cabin 2. The second supporting legs 5 are used for supporting the expansion cabin 2 which is expanded in place, and the distance between the expansion cabin 2 and the vehicle body after being expanded in place is long, so that the vehicle body is easily inclined to one direction, and the cabin body can be effectively prevented from shaking when people take a rest on the upper berth and the lower berth and work at the working point of the vehicle body to and fro.
The cross sections of the guide rail 11 and the slide block 21 can be any one of rectangular and dovetail, no limitation is made here, and sliding can be realized.
The side surface of the expansion cabin 2 further comprises a pull rod 22, and the pull rod 22 is connected with the telescopic end of the telescopic mechanism 3. The advantage of using tie rods 22 to connect the expansion trunks 2 one after the other is that the forward and backward speed of the individual expansion trunks 2 can be kept constant.
The telescopic mechanism 3 comprises a motor 31, a speed reducer 32 and two telescopic rods 33, the motor 31 is a servo motor, the motor 31 and the speed reducer 32 can be fixedly connected to a bottom plate in the vehicle body 1 through bolts, and the telescopic mechanism 3 is positioned between the expansion cabins 2 on two sides; the motor 31 is connected with the speed reducer 32, the speed reducer 32 has two output ends, the output end of the speed reducer 32 is connected with the telescopic rod 33, and the end of the telescopic rod 33 is connected with the pull rod 22. In the embodiment, the two telescopic rods 33 are simultaneously controlled by one motor 31 to extend and retract, so that the expansion cabins 2 on two sides can be simultaneously extended and retracted, and the phenomenon that the vehicle body 1 inclines towards one direction due to the fact that the expansion cabin 2 on one side extends too long or the expansion cabin 2 on one side extends too short is avoided, and the vehicle body 1 can be laterally turned over when the phenomenon is serious; the embodiment improves the synchronism of the expansion cabin 2 and the overall stability.
In the practical use process, the expansion cabin 2 further comprises a bed and a floor, the bed is connected with the side wall of the expansion cabin 2, and the floor is connected with the bottom plate of the expansion cabin 2. The bed can be folded on the side wall of the expansion cabin 2 when not in use, and can be unfolded through hydraulic cylinders, electric cylinders and the like at two ends of the bed when in need of unfolding, and the bed in the prior art can also be used, and the bed is not limited specifically here. When the floor is not used, the floor can be superposed with the bottom plate of the expansion cabin 2, after the expansion cabin 2 is completely expanded, the bottom plate of the expansion cabin 2 has a height difference with the bottom plate of the vehicle body 1, and in order to improve the use comfort level, the floor is lifted to be flush with the bottom plate of the vehicle body 1, so that the use is convenient; of course, the floor may be in other forms, and is not limited herein.
Above-mentioned automobile body 1 and expansion cabin 2 in the use, as required set up the size etc. can, if can be applied to certain logistics support car, this car transport state is long 14.5 meters, wide 3.2 meters, high 3.5 meters, and the expansion state is long 14.5 meters, wide 5.5 meters, high 3.5 meters, can provide accommodation space after expansion cabin 2 expands, sets up 30 berths altogether, can provide personnel's guarantee of camping and operation mission in an organic whole, supplies 30 people to lodge in the car.
Example two:
the embodiment discloses a method for adopting the control system of the expansion cabin, which comprises the following steps:
firstly, acquiring the distance between the expansion cabin 2 and the vehicle body 1 when the expansion is finished, and setting the movement speed and time of the motor 31 according to the distance; as shown in fig. 4, the horizontal axis X represents the extended extension length of the expansion compartment 2 in mm; the vertical axis Y represents the rotational speed of the servomotor, which actually reflects the expansion speed of the expansion compartment 2 in r/min. The sum of the extending distances of the expansion cabin 2 to the two sides is S, the operation process of the expansion cabin 2 comprises an acceleration stage, a constant speed stage and a deceleration stage, and the speed of the constant speed stage is Vmax. Namely, the expansion compartment 2 is accelerated to start, and after the speed is accelerated to Vmax from 0, the expansion compartment 2 extends for a displacement S1; uniformly expanding, keeping Vmax, and extending the expansion cabin 2 for a displacement from S1 to S2; then the speed is reduced to 0, and the extension displacements S2 to S are carried out until the stop is reached, and the expansion cabin 2 is in place.
The embodiment adopts an expansion mode of acceleration, uniform speed and deceleration, so that the vibration generated at the moment of starting and stopping when the expansion cabin is expanded or retracted can be avoided; the control device can accurately calculate the displacement of the expansion cabin 2 during expansion or retraction at the moment through the pulse number fed back by the servo motor, and a sensor or a travel switch for judging the expansion in place and the retraction in place of the expansion cabin is not needed.
As shown in fig. 5 and 6, a "cabin setting and erecting" button is provided as a start button for the unfolding operation;
expanding the first stage: the control device controls the motor 31 to act, the motor 31 drives the speed reducer 32 to decelerate, the speed reducer 32 drives the telescopic rods 33 on the two sides to extend out, the telescopic rods 33 extend out to push the expansion cabin 2 to extend out towards the two sides, meanwhile, the first supporting leg 4 is controlled to extend out of V1, meanwhile, the second supporting leg 5 acts to extend out and waits to the position above the ground, and the extending speed V2 of the second supporting leg 5 is smaller than V1; waiting for the first supporting leg 4 to be leveled, when the first supporting leg 4 is not leveled, the second supporting leg 5 cannot fall to the ground, and if the second supporting leg 5 falls to the ground and then the first supporting leg 4 is leveled, the second supporting leg 5 can be caused to be virtual, namely the second supporting leg 5 does not actually fall to the ground to play a supporting role, and the expansion cabin 2 is still in a suspended state.
And expanding the second stage: the first supporting leg 4 falls to the ground, and the expansion cabin 2 extends to the position; detecting the vehicle body 1 through a level sensor, and controlling the leveling of the first support leg 4 by a control device until the leveling of the first support leg 4 is completed; the horizontal sensor collects the horizontal angles of the vehicle body 1 in the X-axis direction and the Y-axis direction, and the control device can level the first supporting leg 4 according to the angles. The process may be used in a leveling manner as in the prior art. And after the expansion cabin 2 is expanded in place, the first supporting leg 4 can perform leveling, so that the aim of leveling the vehicle body 1 in the process of stable gravity center is fulfilled, the leveling precision is guaranteed, and the stability of the expansion cabin 2 and even the whole vehicle body 1 is improved.
In the practical use process, after the expansion cabin 2 extends in place, the bed in the expansion cabin 2 starts to be unfolded, and meanwhile, the floor in the expansion cabin is lifted, so that the accommodation requirement is met.
And expanding the third stage: after the leveling of the first supporting leg 4 is finished, the control device controls the second supporting leg 5 to continuously extend out, whether the leveling precision of the vehicle body 1 is met or not can be continuously detected while the second supporting leg 5 extends out, and if the leveling precision is met, the second supporting leg 5 quickly falls to the ground at a speed V3.
The expansion cabin control system in the embodiment comprises a plurality of actions of extending the first supporting leg 4 to the ground, detecting and leveling the first supporting leg, extending the expansion cabin 2, extending the second supporting leg 5 to the ground, simultaneously detecting the actions, self-locking the actions, improving the working efficiency, and adopting one-by-one action for original erection, wherein 560s is shortened to 200s when the original erection is used, so that the erection time of the expansion cabin 2 is greatly shortened.
As shown in fig. 7 and 8, a "hold-in withdraw" button is provided as a start button for the withdraw action;
withdrawal of the first stage: the floor in the expansion cabin 2 descends, and meanwhile, the bed in the expansion cabin 2 is withdrawn;
withdrawal of the second stage: after the floor and the bed finish the action, the expansion cabin 2 starts to be retracted, the control device controls the motor 31 to act, the expansion cabin 2 is retracted towards the middle, the second supporting leg 5 is retracted at the same time, and the first supporting leg 4 is retracted. Until the expansion cabin 2, the first support leg 4 and the second support leg 5 return to the original position.
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. Expansion cabin control system, its characterized in that, including expansion cabin, telescopic machanism, first supporting leg, second supporting leg, controlling means, the level sensor of automobile body, both sides, expansion cabin sliding connection the automobile body, first supporting leg is connected the bottom of automobile body, the second supporting leg is connected expansion cabin bottom, telescopic machanism includes motor, two telescopic links, the motor is connected the automobile body is internal and lie in between the expansion cabin of both sides, the motor is connected two the telescopic link, the expansion cabin is connected to the flexible end of telescopic link, the level sensor is connected the automobile body, controlling means connects telescopic machanism first supporting leg the second supporting leg the level sensor.
2. The expansion cabin control system of claim 1, wherein the bottom surface of the vehicle body comprises at least two guide rails arranged along the width direction of the vehicle body, the guide rails are positioned at two sides of the telescopic mechanism, and the bottom of the expansion cabin comprises at least two sliding blocks which are slidably connected with the guide rails.
3. The expansion compartment control system according to claim 1, wherein the number of the first support legs is at least four, four first support legs are connected to four corners of the vehicle body, the number of the second support legs is at least four, and at least two second support legs are connected to the bottom of each expansion compartment.
4. The expansion cabin control system of claim 1, further comprising a speed reducer and a pull rod, wherein the speed reducer is connected with the vehicle body, the pull rod is connected with the expansion cabin, the motor is a servo motor, the output end of the motor is connected with the speed reducer, the speed reducer is provided with two output ends, the output end of the speed reducer is connected with a telescopic rod, and the end of the telescopic rod is connected with the pull rod.
5. The expansion cabin control system of claim 1, further comprising a bed and a floor in the expansion cabin, wherein the bed is connected with the expansion cabin side wall, and the floor is connected with the expansion cabin bottom plate.
6. The method for using the control system of any one of the preceding claims 1 to 5, characterized by comprising the steps of obtaining the distance between the expansion cabin and the vehicle body when the expansion is completed, and setting the movement speed and time of the motor according to the distance;
expanding the first stage: the control device controls the motor to act, the expansion cabin extends towards two sides, the first supporting leg is controlled to act, and the second supporting leg acts and waits for reaching the position above the ground;
and expanding the second stage: the first supporting leg falls to the ground, and the expansion cabin extends in place; detecting the vehicle body through a level sensor, and controlling the first support leg to be leveled by a control device until the leveling of the first support leg is finished;
and expanding the third stage: after the first supporting leg is leveled, the control device controls the second supporting leg to quickly fall to the ground.
7. The method for controlling the expansion cabin according to claim 6, wherein the expansion cabin extends to two sides by a distance S, the operation process of the expansion cabin comprises an acceleration stage, a constant speed stage and a deceleration stage, and the speed of the constant speed stage is Vmax.
8. The method of the expansion cabin control system according to claim 6, wherein after the expansion cabin is extended into position, the bed in the expansion cabin starts to be unfolded, and the floor in the expansion cabin is raised.
9. The method of the expansion cabin control system according to claim 6, wherein when the expansion cabin needs to be withdrawn, the control device controls the motor to act, the expansion cabin is withdrawn towards the middle, the second support leg is withdrawn at the same time, and the first support leg is withdrawn.
10. The method of the expansion cabin control system according to claim 6, wherein when the expansion cabin needs to be withdrawn, the floor in the expansion cabin is lowered, and simultaneously, the bed in the expansion cabin is withdrawn, and the expansion cabin is withdrawn after the floor and the bed are moved.
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| CN202210452157.2A CN114715014A (en) | 2022-04-27 | 2022-04-27 | Expansion cabin control system and method |
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