An explosion-proof cabin and tracked drive chassis with slot-type fixed suspension.

Abstract

This utility model discloses an explosion-proof cabin and tracked drive chassis with a slot-type fixed suspension. It includes a rectangular cavity body with a slot on each of the two long sidewalls. Each slot protrudes outward along the sidewall and extends along the length of the body. The two ends of each slot connect to the two short sidewalls of the body, and both ends of each slot are open. This application improves the structure of the explosion-proof cabin by providing only one slot on the sidewall of the body. This slot is a through groove along the length of the body and is located in the middle of the sidewall. This arrangement facilitates the adjustment and fixing of the components along the length of the slot and ensures that the connection points between the components and the body are concentrated in the middle of the body, resulting in more balanced stress on the sidewall. By reinforcing the local structure, the potential for cracks and breakage during long-term use can be minimized.

Description

Technical Field

[0001] This utility model relates to the field of tracked drive chassis technology, and in particular to an explosion-proof cabin with a slot-type fixed suspension and a tracked drive chassis. Background Technology

[0002] The body of an explosion-proof robot needs to have sufficient explosion-proof effect. Therefore, the body with explosion-proof effect is usually called the explosion-proof cabin. The explosion-proof cabin and the drive mechanism are combined to form the drive chassis of the robot.

[0003] In the prior art, the cabin has different shapes due to the different structures of the components mounted on the robot, and the side walls of the explosion-proof cabin have different connection structures in combination with the different drive mechanisms mounted on the robot. Taking the tracked drive mechanism as an example, as shown in the patent application with patent application number CN201910542914.3 entitled "A Shock-absorbing Walking Mechanism for a Firefighting Robot", the side wall of the cabin of this type of robot is provided with multiple slot structures to facilitate the installation of each wheel set of the tracked drive mechanism.

[0004] In the aforementioned patent, the side wall of the explosion-proof cabin (body) has multiple slots, with both ends of the slots sealed. These slots are horizontally arranged and vertically distributed for installing shock absorbers and rolling wheel assemblies (guide wheel assemblies, load-bearing wheel assemblies, etc.) of the track drive mechanism. Whether the slots are recessed or protruding along the side wall of the explosion-proof cabin, the sealed and irregularly distributed vertical arrangement of the slots easily disrupts the overall continuity of the metal or composite material of the explosion-proof cabin at the connection points. This leads to uneven stress on the connecting parts, and under the vibration and impact loads of the robot's operation, fatigue stress easily occurs at the contact points between the slots and the connecting parts. Long-term use may result in cracks and fractures. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an explosion-proof cabin and tracked drive chassis with a slot-type fixed suspension. This application improves the structure of the explosion-proof cabin, and by strengthening the local structure, it can minimize the possibility of cracks and breaks that may occur during long-term use.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an explosion-proof compartment with a slot-type fixed suspension, comprising a rectangular cavity structure body, with a slot provided on each of the two long side walls of the body.

[0007] Each snap-fit ​​groove protrudes outward along the side wall of the body and extends along the length of the body. The two ends of each snap-fit ​​groove are connected to the two short side walls of the body, and the two ends of each snap-fit ​​groove are open.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] This application improves the structure of the explosion-proof compartment by providing only one snap-fit ​​groove on the side wall of the main body. This snap-fit ​​groove is a through groove along the length of the main body and is located in the middle of the side wall of the main body. This arrangement not only facilitates the position adjustment and fixed installation of each component along the length of the snap-fit ​​groove, but also ensures that the connection points of each component with the main body are concentrated in the middle of the main body, making the stress on the side wall of the main body more balanced. During the design, by strengthening the local structure (materials, dimensions, etc.), the potential problems such as cracks and fractures that may occur during long-term use can be minimized.

[0010] Furthermore, each snap-fit ​​slot has an auxiliary snap-fit ​​component, which includes two auxiliary snap-fit ​​portions extending outward from each other along the two side walls of the snap-fit ​​slot.

[0011] Furthermore, the upper end of the main body is provided with an opening, and the main body is divided into a first chamber and a second chamber by a partition. The opening end of the first chamber is higher than the opening end of the second chamber, so that the opening end of the main body has a stepped structure.

[0012] Furthermore, a first reinforcing structure is provided at the bottom of the first chamber, and a second reinforcing structure is provided in the second chamber.

[0013] This application also provides a tracked drive chassis, including the aforementioned explosion-proof compartment and two track drive mechanisms, which are respectively located on the outer sides of the two long side walls of the body and are connected to the body.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Based on the structure of the explosion-proof cabin, this application proposes a corresponding drive chassis, which facilitates the installation of the drive mechanism and the main body, increases the connection stability of the main body and the drive mechanism components, and extends the service life of the chassis.

[0016] Furthermore, the track drive mechanism includes a track, a drive wheel, a tension guide wheel assembly, a road wheel assembly, and multiple load wheel assemblies. The track is fitted onto the drive wheel, the tension guide wheel assembly, the road wheel assembly, and the multiple load wheel assemblies so that the track forms a ring structure.

[0017] The drive wheel is rotatably connected to the main body, and the tension guide wheel assembly, the load wheel group and multiple load wheel groups are installed in conjunction with the snap-fit ​​groove.

[0018] Furthermore, the drive wheel and tension guide wheel assembly are located at both ends of the body length direction, respectively. The load wheel set and multiple load wheel sets are arranged at intervals along the body length direction and close to the bottom of the body. Each load wheel set is connected to the first shock absorber and the snap-fit ​​groove through a swing arm so that each load wheel set swings along the body.

[0019] Furthermore, the load-bearing wheel assembly is adjacent to the drive wheel, a second shock absorber is provided between the load-bearing wheel assembly and the locking groove, and a limiting arm is provided between the load-bearing wheel assembly and the drive wheel to allow the load-bearing wheel assembly to swing along the axis of the drive wheel.

[0020] Furthermore, the tension guide wheel assembly includes a connecting arm, an auxiliary wheel assembly, a tension wheel assembly, and a mounting base.

[0021] The mounting base is installed in an adjustable position in contact with the card. The connecting arm is hinged to the mounting base. The auxiliary wheel group and the tensioning wheel group are rotatably connected to the connecting arm. The tensioning wheel group is located on the axial side of the auxiliary wheel group and is adjacent to the auxiliary wheel group. A third shock absorber is provided between the connecting arm and the mounting base. The connection end of the third shock absorber and the connecting arm is adjacent to the tensioning wheel group.

[0022] Furthermore, the mounting base includes a sliding base and an adjusting base. The adjusting base is engaged with the sliding base and slidably connected along the sliding base. The sliding base is slidably connected within the engagement groove. The adjusting base is fitted to the side wall of the engagement groove.

[0023] The adjusting seat is positioned on the sliding seat by adjusting the component, the connecting arm is hinged to the adjusting seat, and the third shock absorber is hinged to the adjusting seat. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the explosion-proof compartment body in this utility model;

[0025] Figure 2 for Figure 1 A structural diagram from another perspective;

[0026] Figure 3 This is a side view of the tracked drive chassis of this utility model;

[0027] Figure 4 This is a schematic diagram of a tracked drive chassis according to the present invention;

[0028] Figure 5 This is a schematic diagram of the installation structure of the drive wheel and the body in this utility model;

[0029] Figure 6 This is a schematic diagram of a connection structure between the limiting arm and the load-bearing wheel assembly in this utility model;

[0030] Figure 7 This is a connection structure diagram of the limiting arm, load-bearing shaft, and shock absorber in this utility model;

[0031] Figure 8 for Figure 7 A structural diagram from another perspective;

[0032] Figure 9 This is a schematic diagram of one structure of the limiting arm in this utility model;

[0033] Figure 10 This is a schematic diagram of the connection structure between the tension guide wheel assembly, the track, and the body of this utility model;

[0034] Figure 11 This is a schematic diagram of the connection structure between the tension guide wheel assembly and the vehicle body of this utility model;

[0035] Figure 12 This is a schematic diagram of a tensioning guide wheel assembly according to the present invention.

[0036] In the diagram: Load wheel assembly 600, first shock absorber 610, shock absorber seat 620, swing seat 630, swing arm 640, road wheel assembly 500, second shock absorber 510, limiting arm 520, insertion section 522, irregular arm 5221, ring connecting part 5222, extension section 5223, fixing section 5224, connecting section 521, shock absorber fixing block 530, road wheel 542, road axle 541, drive wheel 220, track 100, body 400, snap-fit ​​groove 41 0. Auxiliary locking part 411, first chamber 420, first reinforcing structure 421, partition 430, second chamber 440, second reinforcing structure 441, motor 460, reducer 450, tension guide wheel assembly 300, tension wheel group 310, tension wheel 311, auxiliary wheel group 320, auxiliary wheel 321, connecting arm 330, third shock absorber 340, mounting base 350, sliding base 351, adjusting base 352, adjusting screw 353, connecting base 354. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0038] like Figure 1 , 2 As shown in Figures 3 and 4, an explosion-proof cabin with a slot-type fixed suspension is provided. This explosion-proof cabin, combined with a drive mechanism, constitutes the drive chassis of a robot. Depending on the drive mechanism, such as a conventional wheeled drive or a tracked drive, the drive mechanism can have various configurations, corresponding to various connection methods with the explosion-proof cabin. In this application, the explosion-proof cabin is mainly used to connect to the tracked drive mechanism. Therefore, the side wall structure of the explosion-proof cabin needs to be improved to ensure better connection stability after the explosion-proof cabin and the tracked drive mechanism are connected, thereby increasing the overall service life of the drive chassis.

[0039] Specifically, the explosion-proof compartment of this application includes a rectangular cavity structure body 400, which is connected to a cover plate (not marked in this application). The rectangular cavity structure of the body 400 is more suitable for the installation of the track drive mechanism, making it easier for each wheel set of the track drive mechanism to be located on the same plane, so as to facilitate the installation of the track 100. At the same time, the rectangular cavity structure has better strength than other irregular structures, and is also easier to produce and perform.

[0040] The track drive mechanism is located on both sides of the long sidewall of the body 400 and connected to the body 400. To increase the connection stability between the body 400 and the track drive mechanism, this application provides a snap-fit ​​groove 410 on each of the two long sidewalls of the body 400. The snap-fit ​​groove 410 can be a rectangular through groove, a dovetail through groove, etc. In this application, considering the connection method between the component and the snap-fit ​​groove 410 (bolt fixing), it is necessary to ensure that the two sidewalls of each snap-fit ​​groove 410 have sufficient thickness and that the sidewalls remain unchanged along their width direction. Therefore, the snap-fit ​​groove 410 in this application is a rectangular through groove structure, and each snap-fit ​​groove 410 protrudes outward along the sidewall of the body 400 and extends along the length direction of the body 400. The two ends of each snap-fit ​​groove 410 are connected to the two short sidewalls of the body 400, and the two ends of each snap-fit ​​groove 410 are open.

[0041] This application improves the structure of the explosion-proof compartment by providing only one snap-fit ​​groove 410 on the side wall of the main body 400. The snap-fit ​​groove 410 is a through groove along the length of the main body 400 and is located in the middle of the side wall of the main body 400. This arrangement not only facilitates the position adjustment and fixed installation of each component along the length of the snap-fit ​​groove 410, but also ensures that the connection points between each component and the main body 400 are concentrated in the middle of the main body 400, making the stress on the side wall of the main body 400 more balanced. During the design, by strengthening the local structure (materials, dimensions, etc.), the potential problems of cracks and fractures that may occur during long-term use can be minimized.

[0042] During actual installation, some wheel components of the track drive mechanism need to be installed in conjunction with the side wall of the locking groove 410. At this time, the width of the side wall of the locking groove 410 needs to be expanded. Therefore, this application provides auxiliary locking components on each locking groove 410. The auxiliary locking components include two auxiliary locking portions 411 extending outwards from each other along the two side walls of the locking groove 410. For example... Figure 11 , 12 As shown, this part of the structure is used to cooperate with the tension guide wheel assembly 300 of the track drive mechanism to assist in fixing the tension guide wheel assembly 300 to the body 400.

[0043] In actual installation, the main body 400 will also house a motor 460 (servo motor 460, stepper motor 460, or other electrically controlled motor 460) for driving the track drive mechanism. The motor 460 requires explosion-proof protection. Therefore, this application divides the internal structure of the main body 400. Specifically, the main body 400 has an opening at the top, and the interior is divided into a first chamber 420 and a second chamber 440 by a partition 430. The opening of the first chamber 420 is higher than the opening of the second chamber 440, creating a stepped structure at the opening of the main body 400. The first chamber 420 is used to install the motor 460, which is fitted against the bottom of the first chamber 420. To ensure the safety of the motor 460 in the first chamber 420, this application provides a first reinforcing structure 421 at the bottom of the first chamber 420. The first reinforcing structure 421 consists of multiple reinforcing ribs arranged side-by-side. Similarly, considering the types of components (controllers, etc.) installed in the second chamber 440, to ensure the safety of the components, this application provides a second reinforcing structure 441 within the second chamber 440. The second reinforcing structure 441 is similar to the first reinforcing structure 421, mainly consisting of multiple reinforcing ribs arranged side-by-side. However, each reinforcing rib of the second reinforcing structure 441 covers the inner wall and bottom of the first chamber 420, further increasing the strength of the second chamber 440.

[0044] Based on the explosion-proof cabin with the above structure, this application also provides a tracked drive chassis. The tracked drive chassis, combined with the explosion-proof cabin, also improves the structure of the tracked drive mechanism. Specifically, the tracked drive chassis includes the explosion-proof cabin and two tracked drive mechanisms. The two tracked drive mechanisms are located on the outer sides of the two long side walls of the body 400 and are connected to the body 400.

[0045] Each track drive mechanism includes a track 100, a drive wheel 220, a tension guide wheel assembly 300, a road wheel set 500, and multiple load wheel sets 600. The track 100 is fitted onto the drive wheel 220, the tension guide wheel assembly 300, the road wheel set, and the multiple load wheel sets 600 to form a ring structure. The drive wheel 220 is rotatably connected to the body 400, and the tension guide wheel assembly 300, the road wheel set 500, and the multiple load wheel sets 600 are installed in conjunction with the locking groove 410.

[0046] The drive wheel 220 and the tension guide wheel assembly 300 are located at opposite ends of the body 400 along its length. The load wheel assembly 500 and multiple load wheel assemblies 600 are spaced apart along the length of the body 400 and located near the bottom of the body 400. Each load wheel assembly 600 is connected to the first shock absorber 610 and the locking groove 410 via a swing arm 640, allowing each load wheel assembly 600 to swing along the body 400. The upper end of the swing arm 640 is hinged to a swing seat 630 slidably mounted on the body 400, and the first shock absorber 610 is hinged to a shock absorber seat 620 slidably mounted on the body 400.

[0047] like Figure 3 , 4 As shown, each load wheel assembly 600 has a structure consisting of two rolling wheels connected to a rolling shaft. The rolling wheels are rotatably connected to the rolling shaft via bearings. The two rolling wheels are tactilely connected to the track 100. A swing arm 640 is fixed on the rolling shaft. The swing arm 640 is hinged to a swing seat 630 on the main body 400. The swing seat 630 is slidably disposed within a locking groove 410 and fixedly connected by bolts. The upper end of the first shock absorber 610 is hinged to a shock absorber seat 620, which is slidably disposed within the locking groove 410 and fixedly connected by bolts. The lower end of the first shock absorber 610 is hinged to the lower part of the swing arm 640, so that each load wheel assembly 600 can provide downward compressive force to achieve the purpose of load application.

[0048] The load-bearing wheel assembly 500 is adjacent to the drive wheel 220. A second shock absorber 510 is provided between the load-bearing wheel assembly 500 and the locking groove 410, and a limiting arm 520 is provided between the load-bearing wheel assembly 500 and the drive wheel 220 so that the load-bearing wheel assembly 500 swings along the axis of the drive wheel 220.

[0049] like Figure 3 , 4 As shown in Figures 5, 6, 7, 8, and 9, the drive wheel 220 needs to be driven by a driver, which is a motor 420 (servo motor 420, stepper motor 420, or other electrically controlled motor 420). This driver is connected to the drive wheel 220 via a reducer 43 and a drive shaft. The driver is fixed to the main body 400. The reducer 43 can be located inside or outside the main body 400 and is connected to the motor 420. The drive shaft is coaxially fixed to the output shaft of the reducer 43 and connected to the drive wheel 220. The track 100 meshes with the drive wheel 220, and the drive wheel 220 rotates under the action of the motor 420 (or other driver), driving the track 100 to roll. The second shock absorber 510, connected to the load-bearing wheel assembly 500 and the main body 400, is connected to a shock-absorbing fixing block 530 on the main body 400. The shock-absorbing fixing block 530 can be slidably set and fixedly connected to the snap-fit ​​groove 410 on the main body 400 to ensure the second shock absorber 510 achieves optimal performance.

[0050] The structure of the load-bearing wheel assembly 500 is similar to that of existing load-bearing wheel assemblies 500, mainly consisting of two rolling wheels connected by an axle. A second shock absorber 510 (spring shock absorber) is provided between the load-bearing wheel assembly 500 and the main body 400. The difference is that in the prior art, the load-bearing wheel assembly 500 is hinged to the main body 400 regardless of whether it is tilting backward or forward to ensure that each load-bearing wheel assembly 500 rotates along the main body 400 during use; while in this application, the load-bearing wheel assembly 500 adjacent to the drive wheel 220 is connected by a limiting arm 520. Connected to the drive wheel 220, the load rotates along the drive wheel 220 during use. Due to the presence of the limiting arm 520, the distance between the center of the load wheel assembly 500 and the center of the drive wheel 220 is essentially constant (basically equal to the length of the limiting arm 520). Therefore, regardless of the volume of the obstacle encountered or the position to which the load wheel assembly 500 swings, the suspension distance remains constant and will not change with the volume of the obstacle. This ensures that the entire drive system has sufficient grounding distance and guarantees the various performance characteristics of the entire drive system.

[0051] When the drive wheel 220 and the load-bearing wheel assembly 500 are installed, they are arranged with their axes parallel (the axis of the drive wheel 220 is parallel to the axis of the corresponding load-bearing wheel 542 of the load-bearing wheel assembly 500). Therefore, in order for the load-bearing wheel assembly 500 to swing along the drive wheel 220, the limiting arm 520 needs to be set on both sides of the drive wheel 220 and rotatably connected to the drive wheel 220. This ensures that the rotation of the drive wheel 220 is not affected, and the swing of the load-bearing wheel assembly 500 along the drive wheel 220 is also unaffected. Therefore, in this application, the limiting arm 520 is located on one side of the drive wheel 220, coaxially set and rotatably connected to the drive wheel 220. If the limiting arm 520 is a common rod-shaped structure, and considering that the drive wheel 220 has two sides, under normal circumstances, only one limiting arm 520 is needed to achieve the swing of the load-bearing wheel assembly 500 along the drive wheel 220. To increase the stability of the load-bearing wheel assembly 500, when using a rod-shaped limiting arm 520, a limiting arm 520 can be connected to both the inner and outer sides of the drive wheel 220. The two limiting arms 520 are connected to the drive wheel 220 and the load-bearing wheel assembly 500 respectively by rotational clamping, so as to ensure that the load-bearing wheel assembly 500 swings along the drive wheel 220.

[0052] In this application, the structure of the limiting arm 520 is designed in conjunction with the mechanism of the drive wheel 220 and the load-bearing wheel assembly 500, such as... Figure 9As shown, specifically, the limiting arm 520 has a Y-shaped frame structure. The limiting arm 520 has a socket section 522 and a connecting section 521. The socket section 522 is inserted into the drive wheel 220 along both sides of the drive wheel 220 and is rotatably connected to the drive wheel 220. The connecting section 521 is connected to the load wheel assembly 500. The socket section 522 of the limiting arm 520 has two irregular arms 5221. The two irregular arms 5221 are detachably connected to the connecting section 521 to form the socket section 522. The structure of each irregular arm 5221 has a circular connecting part 5222 adapted to the installation of the drive wheel 220, an extension section 5223 that avoids the external structure of the drive wheel 220, and a fixing section 5224 for connecting with the connecting section 521. The circular connecting part 5222 is rotatably connected to the shaft connection structure in the middle of the drive wheel 220 through a bearing. Based on this irregular structure, it is adapted to the assembly structure of the drive wheel 220 and the disc 210 of this application. At the same time, the detachable connection of the plug section and the connecting section 521 can facilitate the overall production of the limit arm 520 and the assembly of each component.

[0053] To facilitate the connection between the limiting arm 520 and the load-bearing wheel assembly 500, the load-bearing wheel assembly 500 of this application includes two load-bearing wheels 542 arranged side by side and a load-bearing shaft 541 coaxially arranged with the two load-bearing wheels 542. The two load-bearing wheels 542 are located at both ends of the load-bearing shaft 541 and are rotatably connected to the load-bearing shaft 541 via bearings. The load-bearing shaft 541 is fixedly connected to the limiting arm 520. One end of the second shock absorber 510 can be connected to either the load-bearing shaft 541 or the limiting arm 520, such as... Figure 5 , 6 As shown in Figures 7 and 8, in this application, the lower end of the second shock absorber 510 is hinged to the connecting section 521, and the upper end of the second shock absorber 510 is hinged to the shock-absorbing fixing block 530 on the body 400. The shock-absorbing fixing block 530 is slidably connected to the body 400 and locked with bolts, which can be used to adjust the pressure of the second shock absorber 510 to ensure that the second shock absorber 510 is adapted to the entire track drive mechanism.

[0054] The tension guide wheel assembly 300 includes a connecting arm 330, an auxiliary wheel assembly (320), a tension wheel assembly 310, and a mounting base 350. The mounting base 350 is installed in an adjustable position in contact with a clip. The connecting arm 330 is hinged to the mounting base 350. The auxiliary wheel assembly (320) and the tension wheel assembly 310 are rotatably connected to the connecting arm 330, and the tension wheel assembly 310 is located on the axial side of the auxiliary wheel assembly (320) and adjacent to the auxiliary wheel assembly (320). A third shock absorber 340 is provided between the connecting arm 330 and the mounting base 350. The connection end of the third shock absorber 340 and the connecting arm 330 is adjacent to the tension wheel assembly 310.

[0055] Mounting base 350 includes sliding base 351 and adjusting base 352. Adjusting base 352 is engaged with sliding base 351 and slidably connected along sliding base 351. Sliding base 351 is slidably connected within locking groove 410. Adjusting base 352 is fitted with the side wall of locking groove 410. Adjusting base 352 is positioned on sliding base 351 by adjusting components. Connecting arm 330 is hinged to adjusting base 352. Third shock absorber 340 is hinged to adjusting base 352.

[0056] like Figure 10 , 11 As shown in Figure 12, the auxiliary wheel assembly 320 includes two auxiliary wheels 321 arranged side by side and an auxiliary shaft coaxially arranged with the two auxiliary wheels 321 and rotating relative to them. The two auxiliary wheels 321 are located at both ends of the auxiliary shaft and are rotatably connected to the auxiliary shaft through rotating bearings and other rotating components. Each auxiliary wheel 321 is in rolling contact with the track 100. The middle part of the auxiliary shaft is fixedly connected to the connecting arm 330. The third shock absorber 340 is a shock-absorbing spring. One end of the third shock absorber 340 is hinged to the mounting base 350, and the other end is hinged to the connecting arm 330. When the tensioning mechanism is in use, the auxiliary wheel assembly 320 and the tensioning wheel assembly 310 can swing along the hinge point between the connecting arm 330 and the mounting base 350. At the same time, it can also ensure that the auxiliary wheel assembly 320 and the tensioning wheel assembly 310 are always in contact with the track 100, with two contact fulcrums, ensuring the stability of the track 100 in use.

[0057] The mounting base 350 is slidably installed within the snap-fit ​​groove 410 and locked with bolts, enabling positional adjustment of the mounting base 350 and the body 400, thus facilitating the installation and tension adjustment of the track 100. The sliding base 351 is a horizontal block structure that fits into the snap-fit ​​groove 410. The sliding base 351 has a sliding block embedded in the snap-fit ​​groove 410, allowing the sliding base 351 to slide along the snap-fit ​​groove 410. The sliding base 351 has multiple locking holes, and the body 400 has multiple sets of connecting holes that match the locking holes (each set has multiple connecting holes that match the multiple locking holes). When the locking holes coincide with the corresponding connecting holes, the sliding base 351 and the body 400 can be fixed in different positions using locking bolts. When the sliding seat 351 is connected to the body 400, the tension adjustment of the tensioning mechanism and the track 100 can be basically limited. In order to further enable the third shock absorber 340 to reach the best working state, the adjusting seat 352 of this application is connected to the sliding seat 351 in a different position to achieve fine adjustment of the pre-pressure of the third shock absorber 340.

[0058] The sliding seat 351 fits against the side wall of the vehicle body 400, creating a sliding gap between the sliding seat 351 and the vehicle body 400. To increase the sliding stability of the adjusting seat 352 and the sliding seat 351, and considering the structural characteristics of the vehicle body 400, such as... Figure 11 , 12As shown, the adjusting seat 352 covers the sliding seat 351 in the vertical direction, and the adjusting seat 352 has a locking part in the vertical direction. The two locking parts are respectively locked between the sliding seat 351 and the side wall of the locking groove 410 in the vertical direction, and respectively fit with the auxiliary locking part 411 of the locking groove 410, so that the adjusting seat 352 and the sliding seat 351 are locked and slidably connected.

[0059] To achieve the desired conditions between the adjusting seat 352 and the sliding seat 351, the adjusting seat 352 of this application is positioned on the sliding seat 351 via an adjusting assembly, such as... Figure 11 , 12 As shown, the adjusting assembly includes an adjusting screw 353, which extends along the sliding direction of the sliding seat 351. The adjusting screw 353 is connected to a connecting seat 354 on the sliding seat 351, and also passes through the adjusting seat 352, where it is threadedly connected. A locking nut is also provided on the adjusting screw 353. Rotating the locking nut locks the adjusting screw 353 to the connecting seat 354, thus locking the adjusting screw to the connecting seat 354 (sliding seat 351). At this time, the adjusting seat 352 is locked to the sliding seat 351. Rotating the locking nut unlocks the adjusting screw 353 and the connecting seat 354. Rotating the adjusting screw 353 then changes the position of the adjusting seat 352 on the sliding seat 351, thereby adjusting the position of the adjusting seat 352 and the sliding seat 351.

[0060] In summary, it can be seen that each wheel set on the drive mechanism of this application is installed in conjunction with the snap-fit ​​groove 410 without the need for additional groove-shaped fixing points. This not only facilitates the installation of the drive mechanism and the body 400, but also increases the connection stability between the body 400 and the various components of the drive mechanism, thereby increasing the service life of the chassis.

[0061] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0062] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0063] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An explosion-proof cabin suspended by a card slot type fixing, characterized in that: The body (400) includes a rectangular cavity structure, and each of the two long side walls of the body (400) is provided with a snap-fit ​​groove (410). Each snap-fit ​​groove (410) protrudes outward along the side wall of the body (400) and extends along the length of the body (400). The two ends of each snap-fit ​​groove (410) are connected to the two short side walls of the body (400), and the two ends of each snap-fit ​​groove (410) are open.

2. The explosion-proof cabin with slot-type fixed suspension according to claim 1, characterized in that: Each snap-fit ​​slot (410) has an auxiliary snap-fit ​​component, which includes two auxiliary snap-fit ​​portions (411) extending outward from each other along the two side walls of the snap-fit ​​slot (410).

3. The explosion-proof cabin fixedly hung in a card slot according to claim 1 or 2, characterized in that: The upper end of the main body (400) is open. The main body (400) is divided into a first chamber (420) and a second chamber (440) by a partition (430). The opening end of the first chamber (420) is higher than the opening end of the second chamber (440) so that the opening end of the main body (400) has a stepped structure.

4. The explosion-proof cabin fixedly hung in a card slot according to claim 3, characterized in that: The bottom of the first chamber (420) is provided with a first reinforcing structure (421), and the second chamber (440) is provided with a second reinforcing structure (441).

5. A tracked drive chassis, characterized in that: It includes the explosion-proof compartment as described in any one of claims 1-4 and two track drive mechanisms, the two track drive mechanisms being located on the outer sides of the two long side walls of the body (400) and connected to the body (400).

6. The track-driven chassis of claim 5, wherein: The track drive mechanism includes a track (100), a drive wheel (220), a tension guide wheel assembly (300), a road wheel assembly (500), and multiple load wheel assemblies (600). The track (100) is fitted onto the drive wheel (220), the tension guide wheel assembly (300), the road wheel assembly, and the multiple load wheel assemblies (600) so that the track (100) forms a ring structure. Among them, the drive wheel (220) is rotatably connected to the body (400), and the tension guide wheel assembly (300), the load wheel set (500) and multiple load wheel sets (600) are installed in conjunction with the snap-fit ​​groove (410).

7. The track-driven chassis of claim 6, wherein: The drive wheel (220) and the tension guide wheel assembly (300) are located at both ends of the body (400) along the length of the body (400). The load wheel set (500) and multiple load wheel sets (600) are arranged at intervals along the length of the body (400) and close to the lower part of the body (400). Each load wheel set (600) is connected to the first shock absorber (610) and the snap-fit ​​groove (410) through a swing arm so that each load wheel set (600) swings along the body (400).

8. The track-driven chassis of claim 7, wherein: The load-bearing wheel assembly (500) is adjacent to the drive wheel (220). A second shock absorber (510) is provided between the load-bearing wheel assembly (500) and the locking groove (410). A limiting arm (520) is provided between the load-bearing wheel assembly (500) and the drive wheel (220) so that the load-bearing wheel assembly (500) swings along the axis of the drive wheel (220).

9. A tracked undercarriage according to any one of claims 6 to 8, wherein: The tension guide wheel assembly (300) includes a connecting arm (330), an auxiliary wheel assembly (320), a tension wheel assembly (310), and a mounting base (350). The mounting base (350) is installed in an adjustable position in contact with the card. The connecting arm (330) is hinged to the mounting base (350). The auxiliary wheel assembly (320) and the tension wheel assembly (310) are rotatably connected to the connecting arm (330). The tension wheel assembly (310) is located on the axial side of the auxiliary wheel assembly (320) and is adjacent to the auxiliary wheel assembly (320). A third shock absorber (340) is provided between the connecting arm (330) and the mounting base (350). The connection end of the third shock absorber (340) and the connecting arm (330) is adjacent to the tension wheel assembly (310).

10. The track-driven chassis of claim 9, wherein: The mounting base (350) includes a sliding base (351) and an adjusting base (352). The adjusting base (352) is engaged with the sliding base (351) and slidably connected along the sliding base (351). The sliding base (351) is slidably connected in the engaging groove (410). The adjusting base (352) is fitted with the groove sidewall of the engaging groove (410). The adjusting seat (352) is positioned on the sliding seat (351) by means of the adjusting component, the connecting arm (330) is hinged to the adjusting seat (352), and the third shock absorber (340) is hinged to the adjusting seat (352).

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