Extension transmission mechanism for command shelter

Abstract

The utility model relates to the field of extension drive mechanism for command shelter, disclose a kind of extension drive mechanism for command shelter, including main shelter and skirt edge cabin, the main shelter lower part is fixedly installed with speed reducer motor, the speed reducer motor output shaft is connected with transmission part, the transmission part output shaft is connected with reduction gear box, the reduction gear box and transmission part are all fixedly installed in main shelter lower part, the skirt edge cabin lower side is provided with transmission assembly;The transmission assembly includes sleeve beam fixedly connected in the inner wall of main shelter, the sleeve beam inner wall is slidably connected with sliding beam, the sliding beam lower part is provided with tooth.This utility model, by the use of transmission assembly, after sliding beam drives skirt edge cabin to move or retract into main shelter, scraper can clean the impurities attached to the outside of sliding beam, while roller and sliding beam rub, drive cleaning brush to clean the tooth slot of sliding beam lower part, to reduce the transmission jamming caused by foreign matter blockage.

Description

Technical Field

[0001] This utility model relates to the field of extended transmission mechanisms for command cabins, and more particularly to an extended transmission mechanism for command cabins. Background Technology

[0002] Command expansion modules primarily provide troops with basic spaces and facilities for combat command, communication interconnection, and environmental support. They often require expansion transmission mechanisms to extend the module's space. The expansion transmission of electric expansion modules uses gears and racks to meet the needs of equipment deployment and personnel operations.

[0003] Traditional command module extended transmission mechanisms often rely on manual, periodic lubrication, depending on conventional lubricants such as lithium-based grease. In outdoor environments, foreign objects such as sand, fallen leaves, and insect carcasses can easily adhere to the guide rail surface and enter the gap between the slider and the guide rail, causing transmission jamming or even seizure. This requires maintenance personnel to disassemble and maintain the mechanism, reducing maintenance efficiency. Therefore, an extended transmission mechanism for command modules is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides an extended transmission mechanism for a command cabin, which aims to improve the problem in the prior art that "foreign objects are easily attached to the surface of the guide rail in the traditional extended transmission mechanism for command cabins, and enter the gap between the slider and the guide rail, resulting in transmission jamming or even jamming".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an extended transmission mechanism for a command cabin, comprising a main cabin and a skirt cabin, wherein a reduction motor is fixedly installed at the lower part of the main cabin, a transmission component is driven to the output shaft of the reduction motor, a reduction gearbox is driven to the output shaft of the transmission component, the reduction gearbox and the transmission component are both fixedly installed at the lower part of the main cabin, and a transmission assembly is provided on the lower side of the skirt cabin;

[0006] The transmission assembly includes a sleeve beam fixedly connected to the inner wall of the main cabin. A sliding beam is slidably connected to the inner wall of the sleeve beam. The lower part of the sliding beam is provided with teeth, which are connected to a reduction gearbox. The upper end of the sliding beam is fixedly installed to the skirt cabin via a support block. A mounting base is fixedly installed on the outer side of the sleeve beam. Two sets of outer shells are fixedly installed on the outer side of the mounting base via a disassembly and assembly assembly. A scraper is fixedly connected to the outer side of the outer shell. The scraper is tightly fitted to the outer side of the sliding beam. A cleaning brush is rotatably connected to the lower part of the outer shell. Rollers are fixedly connected to both sides of the cleaning brush. The rollers roll on the lower part of the sliding beam.

[0007] As a further description of the above technical solution:

[0008] The assembly / disassembly assembly includes a positioning pin, which is fixedly connected to the outside of the mounting base and inserted into the inner wall of the housing. A movable rod is slidably connected to the inner wall of the housing, and the movable rod is inserted into the upper inner wall of the positioning pin. A pull rod is fixedly connected to the upper part of the movable rod, and the pull rod slides on the inner wall of the housing. The movable rod and the housing are elastically connected by a spring.

[0009] As a further description of the above technical solution:

[0010] The movable rod is configured in an L-shape.

[0011] As a further description of the above technical solution:

[0012] The pull rod is configured in a T-shape.

[0013] As a further description of the above technical solution:

[0014] A cleaning rod is inserted into the outer shell near the outside of the cleaning brush, and the outer side of the cleaning brush contacts the outer side of the lower teeth of the sliding beam.

[0015] As a further description of the above technical solution:

[0016] The scraper is L-shaped, and the side of the scraper closest to the support block is an inclined surface.

[0017] As a further description of the above technical solution:

[0018] The roller is made of rubber.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, by using the transmission component, after the sliding beam drives the skirt compartment to move or retract into the main compartment, the scraper can clean the impurities attached to the outside of the sliding beam. At the same time, the roller rubs against the sliding beam, driving the cleaning brush to clean the tooth groove at the bottom of the sliding beam, thereby reducing transmission jamming caused by foreign objects.

[0021] 2. In this utility model, the disassembly and assembly components adopt a combination structure of positioning pin, moving rod, pull rod and spring, which allows for quick disassembly of the outer shell without tools. When it is necessary to maintain the cleaning brush, pull the T-shaped pull rod upward to drive the L-shaped moving rod to disengage from the positioning pin, and the outer shell can be removed, which facilitates maintenance and improves practicality. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0023] Figure 2 This is a bottom-view three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the sleeve beam and sliding beam in this utility model.

[0025] Figure 4 This is a three-dimensional structural diagram of the transmission component in this utility model;

[0026] Figure 5 This is a three-dimensional structural diagram of the movable rod and spring in this utility model;

[0027] Figure 6 This is a three-dimensional structural diagram of the support block in this utility model.

[0028] Legend:

[0029] 1. Main cabin; 2. Skirt cabin; 3. Gear motor; 4. Transmission components; 5. Gearbox; 6. Transmission assembly; 61. Sleeve beam; 62. Sliding beam; 63. Support block; 64. Mounting base; 65. Roller; 66. Outer shell; 67. Scraper; 68. Cleaning brush; 7. Assembly / disassembly assembly; 71. Positioning pin; 72. Moving rod; 73. Pull rod; 74. Spring; 8. Cleaning rod. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-3This utility model provides an embodiment of an extended transmission mechanism for a command module, comprising a main module 1 and a skirt module 2. The skirt module 2 slides on the inner wall of the main module 1. The main module 1 has a full trailer chassis that houses the entire structure of the skirt module 2 in its retracted state. Together with the skirt module 2, it forms an expandable space system for the command module. Its internal space is used to arrange command equipment and personnel work areas. A reduction motor 3 is fixedly installed at the lower part of the main module 1. The reduction motor 3 consists of a worm gear reducer and a motor, providing initial power to the transmission mechanism. It drives the rotating shaft of the transmission component 4 to rotate through the output shaft. The rotation speed can be adjusted according to the expansion requirements to ensure that the expansion speed of the skirt compartment 2 is uniform. The output shaft of the geared motor 3 is connected to the transmission component 4. A high-strength coupling and transmission shaft are used to drive the two adjacent sets of reduction gearboxes 5 to rotate synchronously. The output shaft of the transmission component 4 is connected to the reduction gearbox 5. The reduction ratio is changed from 10:1 to 20:1 through multiple sets of internal gear pairs. This is the existing technology. It meshes with the teeth of the sliding beam 62 to meet the mechanical requirements for driving the sliding beam 62 to move. The reduction gearbox 5 and the transmission component 4 are both fixedly installed at the lower part of the main compartment 1. The transmission component 6 is provided on the lower side of the skirt compartment 2.

[0032] Reference Figure 2 , Figure 3 and Figure 6 The transmission component 6 includes a sleeve beam 61 fixedly connected to the inner wall of the main cabin 1, providing a linear motion guide track for the sliding beam 62. The surface roughness of the inner wall Ra is ≤1.6μm, and the clearance between the inner wall and the sliding beam 62 is controlled within 0.1~0.3mm to ensure the linearity of the sliding beam 62. The inner wall of the sleeve beam 61 is slidably connected to the sliding beam 62. The lower part of the sliding beam 62 is provided with teeth, which are connected to the reduction gearbox 5. Through the meshing of the teeth with the output gear of the reduction gearbox 5, the rotational motion of the reduction gearbox 5 is converted into linear motion, driving the skirt cabin 2 to expand or retract. The upper side of the end of the sliding beam 62 is fixedly installed to the skirt cabin 2 through the support block 63, realizing a rigid connection between the sliding beam 62 and the skirt cabin 2, ensuring no relative displacement between the two, and transmitting vertical load and horizontal thrust. The outer side of the support block 63 is provided with a groove to accommodate the tie rod 73. The outer side of the sleeve beam 61 is fixedly installed with a mounting base 64, providing an installation interface for disassembling and assembling the component 7 and the outer shell 66.

[0033] Reference Figures 2-4Two sets of outer shells 66 are fixedly installed on the outside of the mounting base 64 via the disassembly and assembly component 7. The two sets of outer shells 66 are spliced ​​together to fix the cleaning brush 68 and the cleaning rod 8. A scraper 67 is fixedly connected to the outside of the outer shell 66. The scraper 67 is L-shaped, with an inclined surface on the side near the support block 63. It is made of rubber and fits tightly against the outer surface of the sliding beam 62. As the sliding beam 62 moves, it scrapes away larger particles such as sand and fallen leaves. The scraper 67 fits tightly against the outside of the sliding beam 62. The lower part of the outer shell 66 is rotatably connected... A cleaning brush 68 is attached, with bristles made of nylon material, 0.2-0.5mm in diameter, and of moderate hardness. It rotates under the drive of rollers 65, reaching deep into the gaps between the lower teeth of the sliding beam 62 to remove tiny particles. Rollers 65 are fixedly connected to both sides of the cleaning brush 68. The rollers 65 are rubber wheels with a Shore hardness of 60-70A. When they come into contact with the lower surface of the sliding beam 62, they generate sufficient friction with a coefficient of friction ≥0.5. As the sliding beam 62 moves, it drives the cleaning brush 68 to rotate, thus cleaning the teeth of the sliding beam 62. The rollers 65 roll on the lower part of the sliding beam 62.

[0034] Reference Figure 4 and Figure 5 The disassembly and assembly component 7 includes a positioning pin 71, which is fixedly connected to the outside of the mounting base 64 and inserted into the inner wall of the housing 66 to determine the installation position of the housing 66. The positioning pin 71 is inserted into the inner wall of the housing 66, and a moving rod 72 is slidably connected to the inner wall of the housing 66. The moving rod 72 is inserted into the upper inner wall of the positioning pin 71, and the lower end of the moving rod 72 is inserted into the upper inner wall of the positioning pin 71 to lock the housing 66 to the mounting base 64. When the pull rod 73 is pulled upward, the moving rod 72 disengages from the positioning pin 71, unlocking the housing 66 for disassembly. The moving rod 72 is L-shaped and can connect three sets of positioning pins 71.

[0035] Reference Figure 4 and Figure 5 A pull rod 73 is fixedly connected to the upper part of the moving rod 72. When the skirt compartment 2 is in the retracted state, the pull rod 73 is close to the support block 63, which can limit the pull rod 73 and prevent the spring 74 from loosening due to bumps. The pull rod 73 is T-shaped for easy operation. The pull rod 73 slides on the inner wall of the outer shell 66. The moving rod 72 is elastically connected to the outer shell 66 through the spring 74, which provides the downward restoring force of the moving rod 72. When the pull rod 73 is released, the moving rod 72 is pushed into the positioning pin 71 to realize the automatic locking of the outer shell 66. A cleaning rod 8 is inserted into the outer shell 66 near the outer side of the cleaning brush 68 to flick the bristles of the cleaning brush 68 and shake off impurities. The outer side of the cleaning brush 68 contacts the outer side of the lower teeth of the sliding beam 62.

[0036] Working principle: When the command module needs to be expanded, the operator starts the reduction motor 3 at the bottom of the main module 1. The reduction motor 3 consists of a worm gear reducer and a motor. After being powered on, the output shaft starts to rotate. The output shaft of the reduction motor 3 is connected to the reduction gearbox 5 through the transmission component 4, driving the input shaft of the reduction gearbox 5 to rotate. The reduction gearbox 5 has multiple gear pairs inside. The output gear of the reduction gearbox 5 meshes with the teeth of the lower part of the sliding beam 62. When the output shaft of the reduction gearbox 5 rotates, it drives the sliding beam 62 to move linearly within the sleeve beam 61.

[0037] The sliding beam 62 is fixedly connected to the skirt compartment 2 via the support block 63. When the sliding beam 62 slides outward along the sleeve beam 61, it drives the skirt compartment 2 to expand outward from the inner wall of the main compartment 1, thereby expanding the compartment space.

[0038] During the retraction of the skirt compartment 2 driven by the sliding beam 62, the L-shaped scraper 67 fixed to the outside of the outer shell 66 closely adheres to the outer surface of the sliding beam 62. The inclined surface of the scraper 67 scrapes away larger particles of impurities with a diameter of ≥0.5mm, such as sand and fallen leaves, attached to the outside of the sliding beam 62.

[0039] When the sliding beam 62 moves, its lower surface contacts the roller 65 and generates friction. The roller 65 is made of rubber. Under the action of friction, the roller 65 drives the cleaning brush 68 to rotate. When the bristles of the cleaning brush 68 rotate, they remove the embedded tiny particles.

[0040] When maintenance of the cleaning brush 68 is required, the operator pulls the T-shaped lever 73 upwards. The lever 73 moves the L-shaped moving rod 72 upwards, overcoming the elastic force of the spring 74, causing the lower end of the moving rod 72 to disengage from the inner wall of the positioning pin 71, thus releasing the lock on the outer casing 66. At this point, the outer casing 66 can be removed from the mounting base 64 for maintenance.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An extended transmission mechanism for a command module, comprising a main module (1) and a skirt module (2), characterized in that: A geared motor (3) is fixedly installed at the lower part of the main cabin (1). The output shaft of the geared motor (3) is connected to a transmission component (4). The output shaft of the transmission component (4) is connected to a gearbox (5). The gearbox (5) and the transmission component (4) are both fixedly installed at the lower part of the main cabin (1). A transmission assembly (6) is provided on the lower side of the skirt cabin (2). The transmission assembly (6) includes a sleeve beam (61) fixedly connected to the inner wall of the main cabin (1). A sliding beam (62) is slidably connected to the inner wall of the sleeve beam (61). The lower part of the sliding beam (62) is provided with teeth. The lower teeth of the sliding beam (62) are connected to the reduction gearbox (5) for transmission. The upper side of the end of the sliding beam (62) is fixedly installed to the skirt cabin (2) through a support block (63). A mounting seat (64) is fixedly installed on the outer side of the sleeve beam (61). Two sets of outer shells (66) are fixedly installed on the outer side of the mounting seat (64) through a disassembly assembly (7). A scraper (67) is fixedly connected to the outer side of the outer shell (66). The scraper (67) is tightly fitted to the outer side of the sliding beam (62). A cleaning brush (68) is rotatably connected to the lower part of the outer shell (66). Rollers (65) are fixedly connected to both sides of the cleaning brush (68). The rollers (65) roll on the lower part of the sliding beam (62).

2. The extended transmission mechanism for a command module according to claim 1, characterized in that: The disassembly and assembly assembly (7) includes a positioning pin (71), which is fixedly connected to the outside of the mounting base (64). The positioning pin (71) is inserted into the inner wall of the outer shell (66). A moving rod (72) is slidably connected to the inner wall of the outer shell (66). The moving rod (72) is inserted into the upper inner wall of the positioning pin (71). A pull rod (73) is fixedly connected to the upper part of the moving rod (72). The pull rod (73) slides on the inner wall of the outer shell (66). The moving rod (72) and the outer shell (66) are elastically connected by a spring (74).

3. The extended transmission mechanism for a command module according to claim 2, characterized in that: The movable rod (72) is configured in an L shape.

4. The extended transmission mechanism for a command module according to claim 2, characterized in that: The pull rod (73) is configured in a T-shape.

5. The extended transmission mechanism for a command module according to claim 1, characterized in that: A cleaning rod (8) is inserted into the outer side of the outer shell (66) near the outside of the cleaning brush (68), and the outer side of the cleaning brush (68) contacts the outer side of the lower teeth of the sliding beam (62).

6. The extended transmission mechanism for a command module according to claim 1, characterized in that: The scraper (67) is L-shaped, and the side of the scraper (67) near the support block (63) is an inclined surface.

7. The extended transmission mechanism for a command module according to claim 1, characterized in that: The roller (65) is configured as a rubber wheel.

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