CN218778704U - Lifting mechanism and square cabin - Google Patents
Lifting mechanism and square cabin Download PDFInfo
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- CN218778704U CN218778704U CN202223504234.9U CN202223504234U CN218778704U CN 218778704 U CN218778704 U CN 218778704U CN 202223504234 U CN202223504234 U CN 202223504234U CN 218778704 U CN218778704 U CN 218778704U
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- landing leg
- shelter
- cylinder
- lifting mechanism
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Abstract
The utility model discloses an elevating system, shelter, including the landing leg hydro-cylinder, the landing leg frame, outer frame, inlayer frame and two piece at least flexibility draw the piece, the cylinder body of landing leg hydro-cylinder is fixed in the landing leg frame, the piston rod articulates in outer frame's top, outer frame endotheca is equipped with the landing leg frame, the landing leg frame endotheca is equipped with the inlayer frame, between landing leg frame and the outer frame, can follow the flexible direction relative slip of landing leg hydro-cylinder between outer frame and the inlayer frame, one end in the flexibility draws the piece is fixed in the lower extreme of outer frame, the top that the landing leg frame was walked around to the other end is connected with the top of inlayer frame, another one end in the flexibility draws the piece is fixed in the lower extreme of outer frame, the bottom that the landing leg frame was walked around to the other end is connected with the top of inlayer frame. The two-stage telescopic lifting mechanism of the utility model has compact structure; two-stage telescopic, and the oil cylinder with shorter stroke and smaller volume can be selected under the same lifting height condition, thereby effectively reducing the total height of the shelter.
Description
Technical Field
The utility model relates to an elevating system's technical field especially relates to an elevating system, shelter.
Background
One of the existing lifting mechanisms of the self-unloading shelter is that four supporting legs synchronously lift, and the other lifting mechanism respectively acts to lift. The former can only adapt to horizontal ground operation, and can cause the whole shelter to tilt in the rising process for the outdoor ground with uneven rescue environment road conditions. The other type of the lifting device can overcome the condition of uneven ground by respectively moving to lift, but the existing product does not have good control on the automatic leveling of the whole lifting process and the lifting height, so that the tilting condition of the square cabin caused by asynchronous lifting can be caused, the lifting action of each supporting leg needs to be repeatedly and manually controlled to achieve stable lifting, and the operation is complex.
The existing lifting support mechanism is formed by matching an outer frame and an inner frame, the inner frame is pushed by an electric push rod or a hydraulic oil cylinder to realize the lifting and the lowering of a shelter, and the length of the frame body is the lifting stroke of the inner frame plus the effective length of the lap joint of the inner frame and the outer frame. The shelter will rise to the freight car more than the goods platform, just need the stroke of lift supporting mechanism to be greater than the goods platform height to whole supporting mechanism length can be longer, draws in the rear shelter height in and can be higher. The problem of law height limit in the process of truck transportation due to overhigh shelter, the practical problem that the shelter cannot pass through due to overhigh shelter in certain special areas, and unstable and unsafe transportation process due to high center of gravity.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an elevating system, shelter to solve the problem that above-mentioned prior art exists, make elevating system's compact structure, total length is shorter under the same lift altitude condition, but self-adaptation unevenness ground.
In order to achieve the above purpose, the utility model provides a following scheme:
the utility model provides a lifting mechanism, draw the piece including landing leg hydro-cylinder, landing leg frame, outer frame, inlayer frame and two piece at least flexibilities, the cylinder body of landing leg hydro-cylinder is fixed in the landing leg frame, the piston rod articulate in the top of outer frame, outer frame endotheca is equipped with the landing leg frame, the landing leg frame endotheca is equipped with the inlayer frame, the landing leg frame with between the outer frame with can follow between the inlayer frame the flexible direction relative slip of landing leg hydro-cylinder, one end among the flexible piece of drawing is fixed in the lower extreme of outer frame, the other end are walked around landing leg frame's top with the top of inlayer frame is connected, another one end among the flexible piece of drawing is fixed in the lower extreme of outer frame, the other end are walked around landing leg frame's bottom with the top of inlayer frame is connected.
Preferably, the flexible traction part is a pull rope, two ends of the supporting leg frame are respectively provided with a pulley through a pin shaft, and the two pull ropes are respectively wound on the pulleys.
Preferably, the flexible traction part is a chain, two ends of the supporting leg frame are respectively provided with a chain wheel through a pin shaft, and the two chains are respectively meshed with the chain wheel.
Preferably, the lengths of the outer layer frame and the inner layer frame are not less than the length of the piston rod of the support oil cylinder.
Preferably, sliding blocks are arranged between the supporting leg frame and the outer layer frame and between the supporting leg frame and the inner layer frame.
The utility model discloses still relate to a shelter, including shelter body, the control unit and foretell elevating system, be connected with one on the four corners of shelter body respectively elevating system, the control unit with the elevating system communication is connected, the control unit can control elevating system steadily goes up and down.
Preferably, four corners of the shelter body are respectively hinged with a pair of swing arms, and the tail ends of the swing arms are hinged to the upper end of the outer layer frame of the lifting mechanism.
Preferably, the control unit comprises a distance sensor, an XY bidirectional horizontal sensor, a controller and an oil cylinder control valve group, the distance sensor, the XY bidirectional horizontal sensor and the controller are arranged in the shelter body, an oil cylinder of each lifting mechanism is connected with the oil cylinder control valve group, and the distance sensor, the XY bidirectional horizontal sensor and the oil cylinder control valve group are respectively in communication connection with the controller.
The utility model discloses for prior art gain following technological effect:
the two-stage telescopic lifting mechanism of the utility model has compact structure, strong cross-country maneuverability and good trafficability; two-stage expansion, namely, the oil cylinder with shorter stroke and smaller volume can be selected under the same lifting height condition, so that the total height of the shelter can be effectively reduced, the shelter is suitable for pick-up transportation, and the requirement that the distance from the ground to goods of the pick-up is not more than 2.5 meters can be met; the plurality of XY bidirectional level sensors and the distance sensors are arranged to feed back the space position data of the shelter body of the shelter in real time, the unique control program is utilized to realize the real-time control and adjustment of the lifting of each supporting leg, one-key lifting and automatic leveling are realized, the lifting height can be set to have an adjusting function, and the shelter self-loading and unloading device is safe, efficient and suitable for the self-loading and unloading operation of the shelter on severe road surfaces such as various fields, mountainous areas and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a connection structure of the lifting mechanism of the present invention;
fig. 2 is a schematic view of the connection structure of the leg cylinder of the present invention;
fig. 3 is a first schematic view of the expansion structure of the shelter of the present invention;
fig. 4 is a schematic diagram of a second unfolding structure of the shelter of the present invention;
fig. 5 is a schematic drawing of the folding structure of the shelter of the present invention;
FIG. 6 is a schematic view of the structure layout of the shelter of the present invention;
fig. 7 is a schematic diagram of the control principle of the shelter of the present invention;
FIG. 8 is a partial enlarged view of the connection structure of the leg cylinder of the present invention;
wherein: 1-supporting leg oil cylinder, 2-outer layer frame, 3-supporting leg frame, 4-inner layer frame, 5-sliding block, 6-pulley, 7-inhaul cable, 8-swing arm, 9-shelter body, 10-distance sensor and 100-lifting mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model aims at providing an elevating system, shelter to solve the problem that prior art exists, make elevating system's compact structure, total length is shorter under the same lift high condition, but self-adaptation unevenness ground.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the following detailed description.
Example one
As shown in fig. 1 to 2: the embodiment provides a lifting mechanism 100, which comprises a supporting leg oil cylinder 1, a supporting leg frame 3, an outer frame 2, an inner frame 4 and at least two flexible traction pieces, wherein a cylinder body of the supporting leg oil cylinder 1 is fixed in the supporting leg frame 3, a piston rod is hinged to the top of the outer frame 2, the supporting leg frame 3 is sleeved in the outer frame 2, the inner frame 4 is sleeved in the supporting leg frame 3, the supporting leg frame 3 and the outer frame 2, and the outer frame 2 and the inner frame 4 can relatively slide along the telescopic direction of the supporting leg oil cylinder 1, one end of the flexible traction piece is fixed at the lower end of the outer frame 2, the other end of the flexible traction piece bypasses the top of the landing leg frame 3 and is connected with the top of the inner frame 4, the other end of the flexible traction piece is fixed at the lower end of the outer frame 2, the other end of the flexible traction piece bypasses the bottom of the landing leg frame 3 and is connected with the top of the inner frame 4, and the outer frame 2 stretches synchronously along with the stretching of the landing leg frame 3 to form a two-stage telescopic landing leg.
When the flexible traction part is the stay cable 7, two ends of the supporting leg frame 3 are respectively provided with a pulley 6 through a pin shaft, the two stay cables 7 are respectively wound on the pulley 6, and the pulley 6 plays a role of moving the pulley 6 in the telescopic process of the lifting mechanism 100.
When the flexible traction element is a chain, two ends of the leg frame 3 are respectively provided with a chain wheel through a pin shaft, and the two chains are respectively meshed with the chain wheel, as shown in fig. 8.
Example two
As shown in fig. 3 to 5: the shelter of this embodiment, including shelter body 9, the control unit and foretell elevating system 100, be connected with an elevating system 100 on the four corners of shelter body 9 respectively, the control unit is connected with elevating system 100 communication, and the control unit can control elevating system 100 and steadily go up and down.
The four corners of the shelter body 9 are respectively hinged with a pair of swing arms 8, and the tail ends of the swing arms 8 are hinged at the upper end of the outer layer frame 2 of the lifting mechanism 100 to form a parallelogram connecting rod structure which is stable in connection.
The control unit comprises a distance sensor 10, an XY bidirectional horizontal sensing instrument, a controller and an oil cylinder control valve group, the distance sensor 10, the XY bidirectional horizontal sensing instrument and the controller are arranged inside the shelter body 9, an oil cylinder of each lifting mechanism 100 is connected with the oil cylinder control valve group, and the distance sensor 10, the XY bidirectional horizontal sensing instrument and the oil cylinder control valve group are respectively in communication connection with the controller. The controller of this embodiment is the PLC controller, controls 4 groups of hydro-cylinder landing legs through the control unit and stretches out shelter body 9 and begin the lifting, and if ground unevenness or each hydro-cylinder stretch out asynchronous can lead to shelter body 9 to produce the slope condition this moment, the two-way level sensor appearance of XY reachs the relative horizontally inclination data of X, Y direction, feeds back it to the PLC controller.
EXAMPLE III
As shown in fig. 6 to 7: based on the shelter, in the rising process of the shelter, when one corner of the shelter body 9 inclines, the oil inlet speeds of the oil cylinders of the lifting mechanism 100 with the highest height and the two next heights are respectively reduced according to the height parameter proportion until the levelness of the shelter body 9 is restored to be within the set horizontal error range; when one side of the shelter body 9 inclines, the oil inlet speeds of the oil cylinders of the two higher lifting mechanisms 100 are reduced until the levelness of the shelter body 9 is restored to the set horizontal error range.
In the shelter lowering process, when one corner of the shelter body 9 inclines, the oil drainage speed of the oil cylinder of the shortest lifting mechanism 100 is respectively reduced according to the height parameter proportion until the levelness of the shelter body 9 is restored to the set horizontal error range; when one side of the shelter body 9 inclines, the oil drainage speed of the oil cylinders of the two lower lifting mechanisms 100 is reduced until the levelness of the shelter body 9 is restored to the set horizontal error range.
In the method for controlling the lifting of the shelter of the present embodiment, the allowable inclination angles of the shelter in the X and Y directions are set as follows:
as shown in fig. 6, the elevating mechanisms 100 at the four corners of the shelter body 9 are elevating mechanisms 100 No. 1, 2, 3 and 4, respectively.
In the rising process of the shelter:
In the descending process of the shelter:
As shown in fig. 4, when the shelter is placed on a horizontal ground, the distance sensor 10 calibrates the distance value between the shelter and the ground to be S, and at this time, the value of the distance sensor 10 is subjected to zero clearing treatment, in the lifting process, the real-time lifting height of the shelter is L, the set height is H, and the difference between the actual height and the set height is Δ L; the height from the ground of the shelter body 9 which can be supported by the lifting mechanism 100 when the lifting mechanism is fully extended is E; Δ L = H-L; while H < E.
According to the embodiment, the H value can be subjected to parameter setting at the operation control end according to actual requirements, and the PLC can set the current parameter of each supporting leg control hydraulic valve according to a certain proportional parameter according to the difference value delta L between the actual height L and the set height H to control the movement speed of each supporting leg oil cylinder 1, namely, the larger the delta L is, the larger the current is; the smaller the Delta L is, the smaller the current is, the inertia impact on the system when the square cabin stops moving can be reduced, and the stretching action of the supporting leg oil cylinder 1 is stopped until the L is more than or equal to H, so that the square cabin finishes the lifting action.
In the design of the embodiment, L is always smaller than E, that is, the lifting margin of the leg lifting mechanism 100 is still remained after the shelter is lifted in place and stopped; all components of the lifting mechanism 100 of the shelter inevitably have processing errors, if all the supporting legs are fully extended to the positions, the accumulated errors can be instantly released, so that the shelter body 9 is severely impacted and shaken, and the operation safety is not facilitated; the setting can make the lifting of the shelter stable and controllable when the lifting is stopped, and the shelter can be adaptive to uneven ground.
The principle and the implementation of the present invention are explained by applying specific examples in this specification, and the above descriptions of the examples are only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. A kind of lifting gearing, its characterized in that: including landing leg hydro-cylinder, landing leg frame, outer frame, inlayer frame and two piece at least flexibility traction pieces, the cylinder body of landing leg hydro-cylinder is fixed in the landing leg frame, the piston rod articulate in the top of outer frame, outer frame endotheca is equipped with the landing leg frame, the landing leg frame endotheca is equipped with the inlayer frame, the landing leg frame with between the outer frame with can follow between the inlayer frame the flexible direction relative slip of landing leg hydro-cylinder, one end in the flexibility traction piece is fixed in the lower extreme of outer frame, the other end are walked around landing leg frame's top with the top of inlayer frame is connected, another one end in the flexibility traction piece is fixed in the lower extreme of outer frame, the other end are walked around landing leg frame's bottom with the top of inlayer frame is connected.
2. The lift mechanism of claim 1, wherein: the flexible traction part is a pull rope, two ends of the supporting leg frame are respectively provided with a pulley through a pin shaft, and the two pull ropes are respectively wound on the pulleys.
3. The lift mechanism of claim 1, wherein: the flexible traction part is a chain, two ends of the supporting leg frame are respectively provided with a chain wheel through a pin shaft, and the two chains are respectively meshed with the chain wheel.
4. The lift mechanism of claim 1, wherein: the length of the outer layer frame and the length of the inner layer frame are not less than the length of the piston rod of the supporting leg oil cylinder.
5. The lift mechanism of claim 1, wherein: and sliding blocks are arranged between the supporting leg frame and the outer layer frame and between the supporting leg frame and the inner layer frame.
6. A shelter, characterized in that: the lifting mechanism comprises a shelter body, a control unit and the lifting mechanism according to any one of claims 1 to 5, wherein the four corners of the shelter body are respectively connected with one lifting mechanism, the control unit is in communication connection with the lifting mechanism, and the control unit can control the lifting mechanism to lift stably.
7. The shelter of claim 6 wherein: and four corners of the shelter body are respectively hinged with a pair of swing arms, and the tail ends of the swing arms are hinged at the upper end of the outer layer frame of the lifting mechanism.
8. The shelter of claim 6 wherein: the control unit comprises a distance sensor, an XY bidirectional horizontal sensor, a controller and an oil cylinder control valve group, the distance sensor, the XY bidirectional horizontal sensor and the controller are arranged in the shelter body, an oil cylinder of each lifting mechanism is connected with the oil cylinder control valve group, and the distance sensor, the XY bidirectional horizontal sensor and the oil cylinder control valve group are respectively in communication connection with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223504234.9U CN218778704U (en) | 2022-12-28 | 2022-12-28 | Lifting mechanism and square cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223504234.9U CN218778704U (en) | 2022-12-28 | 2022-12-28 | Lifting mechanism and square cabin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218778704U true CN218778704U (en) | 2023-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223504234.9U Active CN218778704U (en) | 2022-12-28 | 2022-12-28 | Lifting mechanism and square cabin |
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| Country | Link |
|---|---|
| CN (1) | CN218778704U (en) |
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2022
- 2022-12-28 CN CN202223504234.9U patent/CN218778704U/en active Active
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