CN213545727U

CN213545727U - Modular digital electromechanical sand table and lifting module for same

Info

Publication number: CN213545727U
Application number: CN202023136450.3U
Authority: CN
Inventors: 谢海春; 陆郝凌
Original assignee: Nanjing Zhongshan Virtual Reality Technology Research Institute Co ltd
Current assignee: Nanjing Zhongshan Virtual Reality Technology Research Institute Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-06-25
Anticipated expiration: 2030-12-23

Abstract

The utility model relates to an electromechanical sand table technical field, concretely relates to a lifting module who is used for modular digital electromechanical sand table and is used for digital electromechanical sand table. The lifting module comprises a lifting housing, a fixed housing, a motor and a lifting mechanism. The output end of the lifting mechanism is connected with the lifting cover shell, and the input end of the lifting mechanism is connected with the output shaft of the motor. The motor is connected with the fixed housing through the fixed seat. The tail end of the motor is provided with an integrated circuit board connected with an external power supply electrode. The motor drives the output end of the lifting mechanism to move along the axial direction of the lifting housing. The lifting cover shell is sleeved with the fixed cover shell. The lifting housing moves along with the output end of the lifting mechanism. The tail end of the fixed housing is provided with a clamping groove. The clamping groove is used for penetrating the inserting pin. One end of the contact pin is electrically connected with the mounting bottom plate of the lifting module, and the other end of the contact pin is electrically connected with the integrated circuit board. The lifting module is convenient to install and maintain while guaranteeing the position precision, and reduces the use cost.

Description

Modular digital electromechanical sand table and lifting module for same

Technical Field

The utility model relates to an electromechanical sand table technical field, concretely relates to modular digital electromechanical sand table and be used for digital electromechanical sand table's lifting module.

Background

The electronic sand table is mainly a combination of high and new technologies such as remote sensing, a geographic information system, three-dimensional simulation and the like. The method is virtualized by a three-dimensional simulation technology, and has the advantages of accurate terrain information, detailed and visual land feature representation, convenience in browsing, support of attribute query, terrain analysis and measurement calculation, simulation and the like. Currently, electronic sand tables include purely digital virtual sand tables and physical dynamic sand tables. The physical dynamic sand table is generally formed by assembling a plurality of sand table modules. Each sand table is composed of a plurality of liftable square units. And the power device at the bottom of each square unit provides lifting power for the square units through a transmission mechanism. The control system drives the power device to enable the square units to form staggered arrangement. Each square unit corresponds to corresponding geographic information to form a three-dimensional display of the terrain.

For example, chinese patent document CN110264857A discloses a modular digital electromechanical sand disk device based on the GIS technology. The device comprises a sand table seat, a main control computer, projection equipment, a silica gel skin and an electromechanical sand table module. The electromechanical sand table modules are closely adjacent and fixed on the top of the sand table seat. The electromechanical sand table module comprises a module frame and electromechanical sand table units arranged in the module frame. The electromechanical sand table unit comprises a micro driving motor, a linear rack, a motor driver and a telescopic column head. The output end of the driving motor is meshed with the linear rack through a gear, and the telescopic column head is sleeved at the top of the linear rack. The device controls a micro driving motor to rotate step by step according to a driving signal, drives a linear rack to move up and down, and changes the height of a telescopic column head at the top end of the unit to form a three-dimensional terrain. The power device with the telescopic column head is extremely expensive in cost and difficult to realize large-scale use.

For another example, chinese patent document CN110322774A discloses a stereoscopic map sand table device, and a control system and method thereof. The three-dimensional map sand table device comprises a plurality of lifting bar blocks and pneumatic lifting columns, wherein the lifting bar blocks and the pneumatic lifting columns are arranged in a table frame in a net array mode and can be lifted. The interior of the pneumatic lifting column is a hollow cylinder cavity which extends downwards and is provided with an opening. The hollow fixed rod is movably arranged in the cavity of the middle air cylinder through a piston sheet arranged at the top end. The periphery of the piston sheet is in sealing contact with the inner wall of the hollow cylinder cavity, and the top of the piston sheet is provided with an air port communicated to the hollow fixed rod. An air faucet is installed at the bottom of the hollow fixed rod and is connected to the electric air pump through an air inlet precise control device. The air inlet fine control device is connected to the controller. The device utilizes pneumatic structure's lift principle, has reduced the cost that is used for going up and down power device greatly, realizes the whole lightweight design of three-dimensional sand table, and the practicality is better. However, when the pneumatic element is controlled to perform high-precision positioning, the difficulty of dynamic sealing is high.

In summary, how to design a lifting power device of a block unit in the use process of an entity dynamic sand table to reduce the use cost while ensuring the control precision becomes a technical problem to be solved urgently by those skilled in the art.

Disclosure of Invention

An object of the utility model is to provide a lifting module who is used for the square unit to go up and down for the electromechanical sand table of modularization for improve the position precision that the square unit goes up and down, reduce the cost of sand table.

In order to achieve the above purpose, the utility model adopts the following scheme: the lifting module for the digital electromechanical sand table comprises a lifting housing, a fixed housing, a motor and a lifting mechanism;

the output end of the lifting mechanism is connected with the lifting housing, and the input end of the lifting mechanism is connected with the output shaft of the motor;

the motor is connected with the fixed housing through the fixed seat, the tail end of the motor is provided with an integrated circuit board connected with an external power supply electrode, and the motor drives the output end of the lifting mechanism to move along the axial direction of the lifting housing;

the lifting housing is sleeved with the fixed housing, the lifting housing moves relative to the fixed housing along with the movement of the output end of the lifting mechanism, a clamping groove is formed in the tail end of the fixed housing and used for penetrating a contact pin, one end of the contact pin is electrically connected with the mounting bottom plate of the lifting module, and the other end of the contact pin is electrically connected with the integrated circuit board.

Preferably, the fixed housing is sleeved outside the lifting housing, and the inner wall of the fixed housing guides the outer wall of the lifting housing, so that the straightness of movement of the lifting housing is improved, and the position precision of the lifting housing is improved. When the lifting modules are arranged in an array on the mounting base plate, the fixed housing automatically forms an interval between the adjacent lifting modules, so that the lifting housing is effectively prevented from interfering with the adjacent lifting housing in the ascending or descending process, and the failure rate of the running of the sand table is further reduced.

Preferably, the head end of the fixed housing is provided with a first dustproof sealing ring.

As the optimization, the lifting housing is sleeved outside the fixed housing, the outer wall of the fixed housing guides the inner wall of the lifting housing, the moving position precision of the lifting housing is guaranteed, meanwhile, the dustproof performance of the lifting housing and the inner part of the fixed housing is further improved, dust is effectively prevented from entering from the head end of the fixed housing, and the transmission stability of the lifting mechanism is improved.

Preferably, the tail end of the lifting cover shell is provided with a second dustproof sealing ring.

Preferably, the lifting mechanism comprises a screw rod, a movable seat and a push rod, the movable seat is connected with the screw rod through a movable nut and moves along the extension direction of the screw rod along with the rotation of the screw rod, the tail end of the push rod is connected with the movable seat, the head end of the push rod is connected with the lifting housing, and an output shaft of the motor is connected with a power end of the screw rod.

Preferably, one end of the screw rod, which is far away from the power end, is provided with a limiting block, and the limiting block limits the maximum stroke of the movable nut connected with the screw rod, so that the movable nut is prevented from moving beyond the maximum stroke and falling off from the screw rod.

Preferably, the power end of the screw rod is connected with the fixed seat through the bearing, so that the fixed seat can support and fix the power end of the screw rod conveniently, and the transmission precision of the lifting mechanism can be further improved.

Preferably, an output shaft of the motor is connected with a power end of the screw rod through a coupler, and the output shaft and the coupler as well as the screw rod and the coupler are in interference fit.

Preferably, the ejector rods are symmetrically distributed along the axis of the screw rod, so that the stress of the lifting housing is more uniform, and the phenomenon of other clamping of the lifting housing is avoided.

The utility model also provides a modular electromechanical sand table of digit, be used for the lift module of the electromechanical sand table of digit in the above-mentioned scheme for the lift module of the electromechanical sand table of digit is arranged on mounting plate array and is formed the show area.

The utility model provides a during the lifting module for digital electromechanical sand table used, the motor drive lead screw rotates, and the lead screw drives the axial motion of removal nut along the lead screw. The moving seat limits the freedom degree of the moving nut to rotate along the axial direction of the screw rod, so that the moving nut drives the moving seat to move only along the axial direction of the screw rod. The movable seat further drives the lifting housing to move relative to the fixed housing through the ejector rod. The motor is connected with an external power supply and a control unit through an integrated circuit board. The control unit converts the topographic map information input by the upper computer into point coordinate information and lifting height information of positions corresponding to the lifting modules on the sand table, and calculates the number of turns of the motor according to the lifting height information by combining parameters of the motor, the screw rod and the moving nut. The number of turns of the motor is obtained, and then the turning characteristic of the motor is combined to convert the turning characteristic into the time for the motor to get electricity. The control unit transmits the time information of power to the integrated circuit board, controls the rotation time of the motor and further realizes the control of the lifting height of the lifting housing.

The utility model provides a modular electromechanical sand table of digit and be used for the lift module of electromechanical sand table of digit compares with prior art, has following substantive characteristics and progress:

1. according to the lifting module for the digital electromechanical sand table, the lifting mechanism is integrated in the lifting housing and the fixed housing which are mutually sleeved, the motor is connected with an external power supply and the control unit through the integrated circuit board, the control unit controls the lifting height or the descending height of the lifting housing only by controlling the power-on time of the motor, the position precision of the movement of the lifting housing is ensured, a driver of the motor and a resolving module are integrated into the control unit, and the cost of the lifting module is greatly reduced;

2. the lifting modules for the digital electromechanical sand table are arranged on the mounting base plate in an array to form the modular digital electromechanical sand table, each lifting module is connected with the mounting base plate through the clamping groove formed in the tail end of the fixed housing, the lifting modules are convenient to assemble and disassemble on the mounting base plate, when the damaged lifting modules are replaced, only the damaged lifting modules are required to be pulled down, and the new lifting modules are replaced, so that the maintenance operation is greatly reduced, and the assembly to form the larger modular digital electromechanical sand table is facilitated;

3. this a cup joint structure that is arranged in lift housing and the fixed housing of the lift module of digital electromechanical sand table for elevating system is in the inside of lift housing and fixed housing all the time rising and descending in-process, has improved lift module's protection level, is favorable to being applicable to more use occasions by the sand table that the lift module array formed, is convenient for simulate weather.

Drawings

Fig. 1 is a schematic diagram of a modular digital electromechanical sand table in an embodiment of the present invention;

FIG. 2 is a schematic view of the hoist module of FIG. 1;

FIG. 3 is an assembled schematic view of FIG. 2;

fig. 4 is a partial cross-sectional view of fig. 1.

Reference numerals: the device comprises a mounting base plate 1, a protrusion 2, a lifting module 3, a projection device 4, a support 5, a control unit 6, a platform 7, a lifting housing 31, a fixed housing 32, a motor 33, an integrated circuit board 34, a fixed seat 35, a screw rod 36, a moving seat 37, a mandril 38 and a moving nut 39.

Detailed Description

The following detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.

The modular digital electromechanical sand table as shown in fig. 1 comprises a mounting base plate 1 and a lifting module 3. The lifting modules 3 are arranged in an array on the installation base plate 1. The installation bottom plate 1 is provided with a protrusion 2 for positioning the lifting module 3 and supplying power to the lifting module 3. When the modularized digital electromechanical sand table is used, the control unit 6 converts the topographic map information input by the upper computer into point coordinate information and lifting height information of the positions corresponding to the lifting modules on the sand table. The control unit 6 calculates the number of turns of the motor according to the rising height information by combining the parameters of the motor, the screw rod and the moving nut in the lifting module 3. The number of turns of the motor is obtained, and then the turning characteristic of the motor is combined to convert the turning characteristic into the time for the motor to get electricity. The control unit 6 transmits the time information of the power supply to an integrated circuit board connected with the motor, controls the rotation time of the motor, further realizes the control of the lifting height of the lifting housing and displays the three-dimensional terrain in space.

Wherein, the installation bottom plate 1 is fixedly installed on the platform 7. The lifting modules 3 are arranged on the mounting base plate 1 in an array to form a display area. The projection device 4 is fixedly mounted above the display area by means of a bracket 5. The control unit 6 is connected to the mounting baseplate 1 by a cable. The control unit 6 can be controlled to be connected with the projection equipment 4 through the wireless signal receiving and sending device, control the projection equipment 4 to project a plane map, aerial images and the like to a display area, and form omnibearing three-dimensional display by combining with the terrain information displayed by the lifting module 3. The control unit 6 may be a computer. The projection device 4 may be a high-brightness projector.

The modularized digital electromechanical sand table forms a display area on the installation bottom plate 1 in an array mode through the lifting modules 3. Each lifting module 3 is provided with a clamping groove through the tail end of the fixed housing and connected with the mounting bottom plate 1, so that the lifting modules can be assembled and disassembled on the mounting bottom plate conveniently. When changing the lifting module of damage, only need pull out the lifting module of damage, more change new lifting module can, the operation of the maintenance that has significantly reduced is favorable to assembling and forms bigger modularization digital electromechanical sand table.

As shown in fig. 2 in conjunction with fig. 3, a lifting module for a digital electromechanical sand table includes a lifting housing 31, a fixing housing 32, a motor 33, and a lifting mechanism. The lifting mechanism comprises a screw rod 36, a movable seat 37 and a mandril 38. The movable base 37 is connected with the screw rod 36 through a movable nut 39 and moves along the extending direction of the screw rod 36 with the rotation of the screw rod 36. The rear end of the ejector rod 38 is connected to the moving seat 37. The head end of the ram 38 is connected to the lifting housing 31. The moving seat 37 limits the freedom of axial rotation of the moving nut 38 along the screw 36, so that the moving nut 38 drives the moving seat 37 to move only in the axial direction of the screw 36. The movable base 37 in turn moves the lifting cover 31 relative to the fixed cover 32 via the push rod 38.

The output shaft of the motor 33 is coupled to the power end of the lead screw 36. The motor 33 is connected to the stationary housing 32 through a stationary base 35. The rear end of the motor 33 is provided with an integrated circuit board 34 connected to an external power supply electrode. Wherein, the output shaft of the motor 33 and the screw rod 36 can be directly connected. For example, the tail end of the screw rod 36 is provided with a mounting hole, the output shaft of the motor 33 is directly and fixedly connected in the mounting hole, and the inner diameter of the mounting hole is in interference fit with the shaft diameter of the output shaft of the motor 33.

The output shaft of the motor 33 can also be connected with the power end of the screw rod 36 through a coupler, and the output shaft and the coupler as well as the screw rod 36 and the coupler are in interference fit. The output shaft of the motor 33 is connected with the power end of the screw rod 36 through a coupler, so that the coaxiality of the output shaft and the screw rod 36 can be conveniently adjusted in the assembling process, and the transmission position precision of the lifting mechanism can be improved.

And a limiting block is arranged at one end of the screw rod 36 far away from the power end, and limits the maximum stroke of the movable nut 39 connected with the screw rod 36, so that the movable nut 39 is prevented from moving beyond the maximum stroke and falling off from the screw rod 36.

As shown in fig. 4, the lifting cover 31 is sleeved with the fixed cover 32. The inner wall of the lifting housing 31 is connected to the head end of the jack 38 through a ceiling. The lifting cover 31 moves relative to the fixed cover 32 with the movement of the jack 38. The tail end of the fixed housing 32 is provided with a clamping groove. The clamping groove is used for being connected with the mounting bottom plate of the lifting module. The socket structure of the lifting cover 31 and the fixing cover 32 enables the lifting mechanism to be always positioned inside the lifting cover 31 and the fixing cover 32 in the lifting and descending processes. The protection level of the lifting modules is improved, and the modular digital electromechanical sand table formed by the lifting module array is favorable for being suitable for more use occasions, such as urban house layout for simulating wind and rain weather.

The power end of the screw rod 36 is connected with the fixed seat 35 through a bearing, so that the fixed seat 35 can support and fix the power end of the screw rod 36 conveniently, and the transmission precision of the lifting mechanism can be further improved.

Preferably, the plurality of push rods 38 are symmetrically distributed along the axis of the screw rod 36, which is beneficial to more uniform stress of the lifting cover 31, and further avoids the phenomenon of other clamping of the lifting cover 31.

In an alternative embodiment, the fixed cover 32 is sleeved outside the lifting cover 31, and the inner wall of the fixed cover 32 guides the outer wall of the lifting cover 31. The movement straightness of the lifting housing 31 is improved, and the position precision of the lifting housing 31 is improved. When the lifting modules are arranged in an array on the mounting base plate, the fixed housing 32 automatically forms an interval between the adjacent lifting modules, so that the lifting housing 31 is effectively prevented from interfering with the adjacent lifting housing 31 in the ascending or descending process, and the failure rate of the sand table operation is further reduced. In order to further improve the protection level of the lifting module, a first dustproof sealing ring can be arranged at the head end of the fixed housing 32. The first dustproof ring can be a skeleton lip-shaped dustproof ring or a skeleton-free lip-shaped dustproof ring.

In another embodiment, as shown in fig. 4, the lifting housing 31 is sleeved outside the fixed housing 32, and the outer wall of the fixed housing 32 guides the inner wall of the lifting housing 31, so that the moving position accuracy of the lifting housing 31 is ensured, the dustproof performance of the lifting housing 31 and the inner part of the fixed housing 32 is further improved, dust is effectively prevented from entering from the head end of the fixed housing 32, and the transmission stability of the lifting mechanism is improved. Similarly, in order to further improve the protection level of the lifting module, a second dust-proof sealing ring may be disposed at the tail end of the lifting housing 31. The second dust ring can also be a skeleton lip-shaped dust ring or a frameless lip-shaped dust ring.

As shown in fig. 4, the fixing cover 32 has a slot at the rear end thereof. The clamping groove is used for penetrating the inserting pin. One end of the contact pin is electrically connected with the mounting bottom plate of the lifting module. The other end of the pin is electrically connected to the integrated circuit board 34. For example, a pin may be fixedly connected to the protrusion 2 on the mounting base plate 1, and the other end of the pin is plugged to the integrated circuit board 34; the contact pin can also be fixedly connected to the integrated circuit board 34, and the other end of the contact pin is plugged into the projection 2 of the mounting base plate 1.

The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments can be provided in addition to the above embodiments. It should be understood by those skilled in the art that any modifications, equivalent substitutions, improvements and the like that are made within the spirit and principle of the present invention are within the scope of the present invention.

Claims

1. A lifting module for a digital electromechanical sand table is characterized by comprising a lifting housing, a fixed housing, a motor and a lifting mechanism;

2. The lifting module for a digital electromechanical sand table according to claim 1, characterized in that said fixed casing is sleeved outside the lifting casing, the inner wall of said fixed casing forming a guide for the outer wall of the lifting casing.

3. The lift module for a digital electromechanical sand table according to claim 2, wherein the head end of the fixed shroud is provided with a first dust seal.

4. The lifting module for a digital electromechanical sand table according to claim 1, characterized in that said lifting cover is sleeved outside a fixed cover, the outer wall of which forms a guide for the inner wall of the lifting cover.

5. The lift module for a digital electro-mechanical sand table according to claim 4, wherein the tail end of the lift housing is provided with a second dust seal.

6. The lifting module for a digital electromechanical sand table according to claim 1, wherein the lifting mechanism comprises a screw rod, a moving seat and a push rod, the moving seat is connected with the screw rod through a moving nut and moves along the extending direction of the screw rod along with the rotation of the screw rod, the tail end of the push rod is connected with the moving seat, the head end of the push rod is connected with the lifting housing, and the output shaft of the motor is connected with the power end of the screw rod.

7. The lifting module for a digital electromechanical sand table according to claim 6, wherein the end of the screw rod away from the power end is provided with a limiting block.

8. The lifting module for a digital electromechanical sand table according to claim 6, characterized in that the power end of said screw is connected to the fixed seat by means of a bearing.

9. The lifting module for a digital electromechanical sand table according to claim 6, wherein the output shaft of the motor is coupled to the power end of the lead screw by a coupling.

10. A modular digital electromechanical sand table, comprising lifting modules for a digital electromechanical sand table according to any one of claims 1 to 9, arranged in an array on a mounting base plate to form a display area.