CN214356265U - Extensible carriage adjustment mechanism - Google Patents

Abstract

The utility model discloses an extensible carriage adjustment mechanism, including fixed carriage, extension carriage, the extension mechanism who is used for driving the extension carriage, support levelling mechanism, actuating mechanism and the control unit, fixed carriage with the extension carriage comprises bottom plate, curb plate and roof respectively, and is a plurality of support levelling mechanism and set up under the bottom plate of fixed carriage and extension carriage, and is a plurality of actuating mechanism links to each other with supporting levelling mechanism, and is a plurality of the control unit links to each other with actuating mechanism, supports levelling mechanism motion through the control unit drive and realizes that bottom plate and horizontal plane keep parallel to the problem of fixed carriage and extension carriage bottom plate slope that has solved because complicated topography leads to.

Description

Extensible carriage adjustment mechanism

Technical Field

The utility model belongs to the technical field of the extension carriage, specifically, relate to an extensible carriage adjustment mechanism.

Background

The expansion carriage is vehicle-mounted emergency equipment used for field temporary rescue scenes under emergency conditions of sudden natural disasters or major epidemic outbreaks and the like, has the characteristics of flexibility, quick expansion and complete matching, and is folded by a carriage adjusting mechanism during moving transportation and opened after arriving at a field so as to enlarge the use space.

The current carriage adjusting mechanism is generally composed of a fixed carriage and expansion carriages which can be expanded and contracted inside the fixed carriage and on two sides of the fixed carriage, the expansion carriages are driven to move through the expansion mechanism, the expansion and contraction of the expansion carriages are realized, and the purpose of convenient use is realized. However, the prior art mostly focuses on how to improve the expansion mechanism, but after the expansion carriage is expanded on both sides of the fixed carriage, how to maintain the floor level of the expansion carriage is an important problem, and meanwhile, because the field environment is slightly harsh and the terrain is complex, how to provide a horizontal floor condition of the carriage is also a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an extensible carriage adjustment mechanism for solve the problem of the fixed carriage that complicated topography leads to and extension carriage bottom plate slope.

In order to achieve the above object, the utility model provides an extensible carriage adjustment mechanism constructs, including fixed carriage, extension carriage and the extension mechanism that is used for driving the extension carriage, support levelling mechanism, actuating mechanism and the control unit, fixed carriage with the extension carriage comprises bottom plate, curb plate and roof respectively, and is a plurality of support levelling mechanism sets up under the bottom plate of fixed carriage and extension carriage, and is a plurality of actuating mechanism links to each other with supporting levelling mechanism, and is a plurality of the control unit links to each other with actuating mechanism. The supporting and leveling mechanisms are used for driving the supporting and leveling mechanisms to move through the driving mechanisms under the control of the control unit so as to enable the plane where the bottom plate of the fixed carriage is located and the plane where the bottom plate of the extended carriage is located to be parallel to the horizontal plane.

Preferably, the control unit comprises acquisition units respectively arranged on the bottom plate of the fixed carriage and the bottom plate of the extended carriage, and a calculation unit connected with the acquisition units;

the acquisition unit is used for acquiring the included angle between the bottom plate of the fixed carriage and the horizontal plane or the included angle between the bottom plate of the expanded carriage and the horizontal plane;

the calculation unit is used for calculating the height difference between the highest point and the lowest point on the bottom plate of the fixed carriage according to the included angle between the bottom plate of the fixed carriage and the horizontal plane, or calculating the height difference between the highest point and the lowest point on the bottom plate of the extended carriage according to the included angle between the bottom plate of the extended carriage and the horizontal plane.

Preferably, the driving mechanism is a servo motor having a torque control mode and a position control mode.

Preferably, the supporting and leveling mechanism is a screw pair structure consisting of a main screw and an auxiliary screw.

The utility model has the advantages that: the bottom plates of the fixed carriage and the extended carriage are respectively provided with a plurality of supporting and leveling mechanisms, driving mechanisms connected with the supporting and leveling mechanisms and control units connected with the driving mechanisms, and the supporting and leveling mechanisms are driven by the control units to move so as to keep the bottom plates parallel to the horizontal plane, so that the problem that the bottom plates of the fixed carriage and the extended carriage are inclined due to complex terrains is solved.

Drawings

FIG. 1 is a schematic structural view of the field compartment extension adjustment mechanism of the present invention;

description of reference numerals:

1-fixed carriage 2-extended carriage 3-extended mechanism 4-carriage bottom plate

5-support leveling mechanism 6-driving mechanism 7-control unit

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following provides a detailed description of the field carriage expansion adjustment mechanism and the method for using the same with reference to the accompanying drawings.

The embodiment provides a field carriage expansion adjusting mechanism, referring to fig. 1, the carriage expansion adjusting mechanism comprises a fixed carriage 1, an expansion carriage 2, an expansion mechanism 3 for driving the expansion carriage, a support leveling mechanism 5, a driving mechanism 6 and a control unit 7, the fixed carriage 1 and the extended carriage 2 are respectively composed of a bottom plate 4, a side plate and a top plate, a plurality of supporting leveling mechanisms 5 are arranged under the bottom plates 4 of the fixed carriage and the extended carriage, a plurality of driving mechanisms 6 are connected with the supporting leveling mechanisms 5, a plurality of control units 7 are connected with the driving mechanisms 6, a plurality of supporting leveling mechanisms 5 are used for controlling the control units 7, the driving mechanism 6 drives the supporting leveling mechanism 5 to move so as to enable the plane where the bottom plate 4 of the fixed carriage is located and the plane where the bottom plate 4 of the extended carriage is located to be parallel to the horizontal plane.

Referring to fig. 1, a plurality of supporting and leveling mechanisms 5, a driving mechanism 6 connected with the supporting and leveling mechanisms 5, and a control unit 7 connected with the driving mechanism 6 are respectively arranged on a bottom plate 4 of a fixed carriage and an extended carriage, and the supporting and leveling mechanisms 5 are driven by the control unit 7 to move to keep the bottom plate 4 parallel to a horizontal plane, so that the problem that the operation table cannot be kept horizontal due to the inclination of the bottom plate 4 and the normal operation of the operation is influenced is solved.

The control unit 7 further comprises a collecting unit and a calculating unit, wherein the collecting unit is respectively arranged on the bottom plate 4 of the fixed carriage and the bottom plate 4 of the extended carriage, and the calculating unit is connected with the collecting unit;

the acquisition unit is used for acquiring the included angle between the bottom plate 4 of the fixed carriage and the horizontal plane or the included angle between the bottom plate 4 of the expanded carriage and the horizontal plane;

the calculation unit is used for calculating the height difference between the highest point and the lowest point on the bottom plate 4 of the fixed compartment according to the included angle between the bottom plate 4 of the fixed compartment and the horizontal plane, or calculating the height difference between the highest point and the lowest point on the bottom plate 4 of the extended compartment according to the included angle between the bottom plate 4 of the extended compartment and the horizontal plane.

The bottom plate is provided with a plurality of supporting and leveling mechanisms 5, and the driving mechanism 6 drives the supporting and leveling mechanisms 5 corresponding to the highest point and the lowest point on the bottom plate 4 to move up and down, so that the included angle between the bottom plate 4 and the horizontal plane is reduced, and the bottom plate is further kept parallel to the horizontal plane.

The support leveling mechanism 5 also functions to support the car before the adjustment floor and the horizontal plane remain parallel. In the leveling process, if the supporting leveling mechanism 5 corresponding to the highest point of the bottom plate 4 is driven to perform descending movement, a virtual leg phenomenon may be caused, that is, the supporting leveling mechanism 5 cannot support the bottom plate 4, so that the stability of the carriage cannot be ensured. Therefore, in order to avoid this problem, preferably, during the leveling process, the supporting and leveling mechanism 5 is set to move only up and down, that is, the driving mechanism 6 drives the supporting and leveling mechanism 5 at the position corresponding to the lowest point of the bottom plate to perform an up-movement (i.e., a length elongation movement) according to the height difference, and does not drive the supporting and leveling mechanism 5 at the highest point, so as to avoid a leg-missing phenomenon, thereby ensuring both leveling and stability of the carriage.

Preferably, the acquisition unit is a high-precision tilt sensor, the control unit 7 uses siemens S7-1200PLC as a core control element, and the high-precision tilt sensor, the servo motor photoelectric encoder and the proximity switch feed back system state signals in real time, so that the driving mechanism 6 performs supporting and leveling actions. And simultaneously, the working states of all the motion mechanisms are displayed in real time through a touch screen. All sensors and servo motors carry out data interaction with the PLC through the bus, hardware wiring is simplified, and system reliability and later expansibility are improved. The driving mechanism 6 adopts a servo motor with a moment control mode and a position control mode, a ground contact signal is fed back by adopting the moment control mode in the supporting process, the supporting effect of the supporting and leveling mechanism 5 is ensured, the position control mode is adopted for adjustment in the leveling process, the leveling control mode which only rises and does not fall is adopted, the highest point is not adjusted in a rising and falling mode, and the phenomenon of leg weakness is avoided.

In the field, mechanisms capable of realizing lifting movement can be used as the supporting and leveling mechanisms 5, in the embodiment, a screw pair structure consisting of a main screw and an auxiliary screw is preferably used as the supporting and leveling mechanism, the main screw rotates and extends to drive the auxiliary screw to rotate and extend during working, and the single supporting and leveling mechanism bears 2 tons; in addition, the supporting and leveling mechanism is provided with a dust cover, so that the sand prevention capacity is improved. The supporting mechanism has the characteristics that: the folding size is small, the installation is convenient, the system adopts one-key type automatic operation, and the usability and the aesthetic property of the whole vehicle are improved.

In summary, the embodiment of the utility model provides a carriage extension adjusting mechanism, which comprises a fixed carriage 1, an extension carriage 2, an extension mechanism 3 for driving the extension carriage, a support leveling mechanism 5, a driving mechanism 6 and a control unit 7, the fixed carriage 1 and the extended carriage 2 are respectively composed of a bottom plate 4, a side plate and a top plate, a plurality of supporting leveling mechanisms 5 are arranged under the bottom plates 4 of the fixed carriage and the extended carriage, a plurality of driving mechanisms 6 are connected with the supporting leveling mechanisms 5, a plurality of control units 7 are connected with the driving mechanisms 6, a plurality of supporting leveling mechanisms 5 are used for controlling the control units 7, the driving mechanism 6 drives the supporting and leveling mechanism to move so as to enable the plane where the bottom plate 4 of the fixed carriage is located and the plane where the bottom plate 4 of the extended carriage is located to be parallel to the horizontal plane.

A plurality of supporting and leveling mechanisms 5, a driving mechanism 6 connected with the supporting and leveling mechanisms and a control unit 7 connected with the driving mechanism are respectively arranged on the bottom plates 4 of the fixed carriage and the extended carriage, and the bottom plates are kept parallel to the horizontal plane by driving the supporting and leveling mechanisms 5 to move through the control unit 7, so that the problem that the bottom plates of the fixed carriage and the extended carriage are inclined due to complex terrains is solved.

It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (4)

1. The utility model provides an extensible carriage adjustment mechanism, its characterized in that, including fixed carriage, extension carriage, the extension mechanism who is used for driving the extension carriage, support levelling mechanism, actuating mechanism and the control unit, fixed carriage with the extension carriage comprises bottom plate, curb plate and roof respectively, and is a plurality of support levelling mechanism sets up under the bottom plate of fixed carriage and extension carriage, and is a plurality of actuating mechanism links to each other with supporting levelling mechanism, and is a plurality of the control unit links to each other with actuating mechanism.

2. The expandable car adjustment mechanism of claim 1, wherein the control unit comprises a collection unit disposed on the floor of the stationary car and on the floor of the expanded car, respectively, and a computing unit coupled to the collection unit;

the acquisition unit is used for acquiring the included angle between the bottom plate of the fixed carriage and the horizontal plane or the included angle between the bottom plate of the expanded carriage and the horizontal plane;

the calculation unit is used for calculating the height difference between the highest point and the lowest point on the bottom plate of the fixed carriage according to the included angle between the bottom plate of the fixed carriage and the horizontal plane, or calculating the height difference between the highest point and the lowest point on the bottom plate of the extended carriage according to the included angle between the bottom plate of the extended carriage and the horizontal plane.

3. The expandable car adjustment mechanism of claim 1, wherein the drive mechanism is a servo motor having a torque control mode and a position control mode.

4. The expandable car adjustment mechanism of claim 1, wherein the support leveling mechanism is a screw pair structure consisting of a primary screw and a secondary screw.

Images