Electrically driven adjustable track suspension

Abstract

The utility model relates to crawler device technical field, especially a kind of electric drive adjustment's crawler suspension, including electric drive part and suspension main body;Electric drive part and suspension main body are connected with the outside wall of frame body respectively and located the same side of frame body, electric drive part is set to the top of suspension main body;Suspension main body includes support assembly, fixed assembly, shock absorber and swing arm assembly;Fixed assembly is fixedly connected with the several insertion frame located below;The output end of electric drive part is rotatably connected with swing arm assembly, electric drive part drives swing arm assembly to swing towards the direction of approaching and moving away from ground in the end close to fixed assembly.The utility model can avoid occupying the internal space of frame body and lead to the overall layout of the internal space of frame body is limited, compact structure, solve the problem that the electric cylinder of the electric drive suspension of the prior art occupies a part of the space of frame body, so that the overall layout of the internal space of frame body is limited, affect the arrangement and installation of other components.

Description

Technical Field

[0001] This utility model relates to the field of track device technology, and in particular to an electrically driven adjustable track suspension. Background Technology

[0002] As a highly efficient mobile mechanism, tracks are uniquely designed to maintain good grip on various terrains, ensuring high stability during operation. They are widely used in engineering machinery, military equipment, special vehicles, and agricultural machinery.

[0003] Tracks can be connected to the chassis via suspension to form a complete mobile work device. The chassis typically carries various heavy loads or work equipment such as cleaning equipment. The tracks, chassis, and cleaning equipment together constitute a mobile cleaning device. Typically, an electric cylinder drives the suspension body to swing, which in turn moves the tracks, increasing the tracks' traverseability and stability across various terrains. However, current suspension designs place the electric cylinder within the chassis body. This not only occupies space within the chassis body, limiting its internal layout and affecting the arrangement and installation of other components, but also... Utility Model Content

[0004] The main objective of this invention is to provide an electrically driven adjustable track suspension that avoids the situation where occupying internal space of the chassis body restricts the overall layout of the chassis body. It has a compact structure and solves the problem that the electric cylinder of the existing electric drive suspension occupies part of the space of the chassis body, which restricts the overall layout of the chassis body and affects the arrangement and installation of other components.

[0005] To achieve the above objectives, the present invention proposes an electrically driven adjustable track suspension, comprising an electric drive component and a suspension body.

[0006] The electric drive unit and the suspension body are respectively connected to the outer side wall of the frame body and located on the same side of the frame body. The electric drive unit is disposed above the suspension body, and the output end of the electric drive unit is disposed facing the suspension body.

[0007] The suspension body includes a bracket assembly, a fixing assembly, a shock absorber, and a swing arm assembly. The bracket assembly includes several inserts arranged around the shock absorber and the swing arm assembly. Each insert has two ends hinged to the vehicle frame body and the track, respectively. The fixing assembly is fixedly connected to the several inserts located below it and is rotatably connected to the end of the shock absorber away from the electric drive component. One end of the swing arm assembly is rotatably connected to the vehicle frame body, and the other end is rotatably connected to the end of the shock absorber near the electric drive component. The output end of the electric drive component is rotatably connected to the swing arm assembly, and the electric drive component drives the end of the swing arm assembly near the fixing assembly to swing towards and away from the ground.

[0008] Optionally, the number of the inserts is four, and the four inserts are arranged in pairs. The two pairs of inserts are spaced apart along the height direction of the frame body, and the two inserts in the same pair are spaced apart along the horizontal direction. The shock absorber and the swing arm assembly are located between the four inserts. The two inserts in the same pair are arranged in a figure-eight shape from the end closer to the frame body to the end farther away from the frame body.

[0009] Optionally, the insert includes a first hinge portion, a reinforcing portion, a connecting portion, and a second hinge portion; one end of the first hinge portion is hingedly connected to the vehicle frame body, the other end of the first hinge portion is fixedly connected to the connecting portion, the reinforcing portion is connected to the first hinge portion and the connecting portion, the end of the connecting portion away from the first hinge portion is connected to the second hinge portion, and the second hinge portion is hingedly connected to the track.

[0010] Optionally, the fixing assembly includes a connecting frame and a support base, the connecting frame being fixedly connected between the inserts located below, the support base being fixedly disposed on the connecting frame, and the shock absorber being rotatably connected to the support base;

[0011] The support base, the shock absorber, and the swing arm assembly are all located on the side of the connecting frame closer to the electric drive component, and the support base and the shock absorber are located between several inserts.

[0012] Optionally, the connecting frame has a receiving groove on its end face near the electric drive component, and the support base is installed in the receiving groove.

[0013] Optionally, the track suspension further includes a first pin and a bushing; the support base includes a base plate and a first mounting block, the base plate is installed in the receiving groove, and two opposing first mounting blocks are vertically arranged on the end face of the base plate near the electric drive component, the two first mounting blocks are spaced apart along the length direction of the base plate, and a bushing is respectively fitted on both ends of the first pin along the length direction, the first pin is fixed to the first mounting block by the bushing; the end of the shock absorber away from the electric drive component is rotatably connected to the first pin.

[0014] Optionally, the fixing component further includes a plurality of reinforcing plates, the reinforcing plates connecting the connecting frame and the insert, and the reinforcing plates being perpendicularly connected to the connecting frame.

[0015] Optionally, the swing arm assembly includes a first connecting shaft, a second connecting shaft, and two oppositely arranged transmission arms;

[0016] One end of each of the two drive arms is rotatably connected to the frame body, the drive arms extend toward the track, and the two drive arms are spaced apart along the length of the frame body. The other ends of the two drive arms are fixedly connected to both ends of the first connecting shaft, and the end of the shock absorber near the electric drive component is rotatably connected to the first connecting shaft.

[0017] The second connecting shaft is disposed between the first connecting shaft and the vehicle frame body, and the second connecting shaft is parallel to the first connecting shaft. The two transmission arms are fixedly connected to both ends of the second connecting shaft, and the output end of the electric drive unit is rotatably connected to the second connecting shaft, so that the electric drive unit simultaneously drives the two transmission arms to swing towards the fixed component in a direction closer to and away from the ground.

[0018] Optionally, the transmission arm includes a horizontal section and an arc-shaped section. One end of the horizontal section is rotatably connected to the frame body. The horizontal section extends toward the shock absorber. The other end of the horizontal section is connected to the arc-shaped section. The end of the arc-shaped section away from the horizontal section is connected to the shock absorber through the first connecting shaft. The second connecting shaft is disposed at the connection between the horizontal section and the arc-shaped section.

[0019] Optionally, the track suspension further includes a mounting base, which is detachably connected to the vehicle frame body, the bracket is hinged to the mounting base, and the swing arm assembly is rotatably connected to the mounting base.

[0020] Compared with the prior art, the embodiments of this utility model have the following beneficial effects:

[0021] 1. In this tracked suspension, the electric drive unit and the suspension body are respectively connected to the outer wall of the frame body and located on the same side of the frame body. The electric drive unit is located above the suspension body. This tracked suspension can avoid occupying the internal space of the frame body and thus restricting the overall layout of the frame body. This allows the arrangement and installation of other internal components to be determined according to actual needs.

[0022] 2. In this tracked suspension, the insert bracket connects the chassis body and the track. The fixed component connects the end of the shock absorber away from the electric drive component and the insert bracket located below. The swing arm assembly connects the chassis body and the end of the shock absorber near the electric drive component. The insert bracket, fixed component, shock absorber, and swing arm assembly located below form a compact connection. The output end of the electric drive component drives the end of the swing arm assembly near the fixed component to swing towards and away from the ground. The swing arm assembly drives the shock absorber, fixed component, and the end of the insert bracket located below away from the chassis body to swing towards and away from the ground, thereby raising and lowering the track to adjust the track's ground clearance. This allows the track to pass more stably through complex terrain and rugged mountain roads, preventing the entire working device from overturning due to track skewing.

[0023] 3. This track suspension, by incorporating shock absorbers, protects the swing arm assembly and fixed assembly, further extending its service life. Furthermore, in this track suspension, the output end of the electric drive component is rotatably connected to the swing arm assembly, allowing the output end of the electric drive component to linearly drive the swing arm assembly to swing, resulting in high transmission efficiency. Moreover, the overall structure of this track suspension is compact and reasonable, with relatively low complexity. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of an electrically driven adjustable track suspension connected to the vehicle frame and track according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the suspension body and mounting base of an electrically driven adjustable track suspension according to an embodiment of the present invention.

[0026] Figure 3 for Figure 2 Top view;

[0027] Figure 4 for Figure 2 Side view;

[0028] Figure 5 This is a schematic diagram of the connection between the lower bracket and the fixing component of the electrically driven adjustable track suspension according to an embodiment of the present invention.

[0029] Figure 6 for Figure 5 The front view;

[0030] Figure 7 This is a schematic diagram of the swing arm assembly and mounting base of an electrically driven adjustable track suspension according to an embodiment of the present invention.

[0031] Figure 8 for Figure 3 Enlarged view of point A in the middle.

[0032] In the attached figures: 1. Electric drive component; 11. Sleeve lug; 2. Suspension body; 21. Bracket assembly; 211. Insert bracket; 2111. First hinge; 2112. Reinforcing part; 2112a. Triangular plate; 2113. Connecting part; 2114. Second hinge; 22. Fixing assembly; 221. Connecting frame; 2211. Receiving groove; 2212. Frame body; 2213. Concave support plate; 222. Support base; 2221. Base plate; 222 2. First mounting block; 223. Reinforcing plate; 23. Shock absorber; 24. Swing arm assembly; 241. First connecting shaft; 242. Second connecting shaft; 243. Drive arm; 2431. Horizontal section; 2432. Arc section; 244. Brass sleeve; 245. Steel sleeve; 3. First pin; 4. Bushing; 5. Mounting seat; 51. Mounting plate; 52. Third connecting shaft; 53. Second mounting block; 6. Chassis body; 7. Track; 8. Suspension seat. Detailed Implementation

[0033] 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.

[0034] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] This utility model proposes an electrically driven adjustable track suspension.

[0038] In the embodiments of this utility model, such as Figure 1 and 2 As shown, the electrically driven adjustable track suspension includes an electric drive component 1 and a suspension body 2;

[0039] The electric drive unit 1 and the suspension body 2 are respectively connected to the outer side wall of the frame body 6 and located on the same side of the frame body 6. The electric drive unit 1 is located above the suspension body 2, and the output end of the electric drive unit 1 is arranged in the direction of the suspension body 2.

[0040] The suspension body 2 includes a bracket assembly 21, a fixing assembly 22, a shock absorber 23, and a swing arm assembly 24. The bracket assembly 21 includes several inserts 211, which are arranged around the shock absorber 23 and the swing arm assembly 24. Each insert 211 is hinged to the vehicle frame body 6 and the track 7 at both ends along its length. The fixing assembly 22 is fixedly connected to the several inserts 211 located below it, and the fixing assembly 22 is rotatably connected to the end of the shock absorber 23 away from the electric drive component 1. One end of the swing arm assembly 24 is rotatably connected to the vehicle frame body 6, and the other end of the swing arm assembly 24 is rotatably connected to the end of the shock absorber 23 near the electric drive component 1. The output end of the electric drive component 1 is rotatably connected to the swing arm assembly 24, and the electric drive component 1 drives the end of the swing arm assembly 24 near the fixing assembly 22 to swing in the direction of approaching and moving away from the ground.

[0041] In this tracked suspension, the electric drive unit 1 and the suspension body 2 are respectively connected to the outer side wall of the frame body 6 and located on the same side of the frame body 6. The electric drive unit 1 is located above the suspension body 2. This tracked suspension can avoid occupying the internal space of the frame body 6 and thus restricting the overall layout of the frame body 6, so that the arrangement and installation of other internal components can be determined according to actual needs. In this tracked suspension, the insert 211 connects the chassis body 6 and the track 7. The fixed component 22 connects the end of the shock absorber 23 away from the electric drive component 1 and the insert 211 located below. The swing arm assembly 24 connects the chassis body 6 and the end of the shock absorber 23 near the electric drive component 1. The insert 211, fixed component 22, shock absorber 23 and swing arm assembly 24 located below form a compact connection. The output end of the electric drive component 1 drives the end of the swing arm assembly 24 near the fixed component 22 to swing towards and away from the ground. The swing arm assembly 24 drives the shock absorber 23, fixed component 22 and the end of the insert 211 located below away from the chassis body 6 to swing towards and away from the ground, thereby causing the track 7 to rise and fall, realizing the adjustment of the track 7's ground clearance. This further enables the track 7 to pass through complex terrain and rugged mountain roads more stably, avoiding the situation where the entire working device will overturn due to the track 7's deviation. This track suspension, by incorporating shock absorbers 23, protects the swing arm assembly 24 and the fixed assembly 22, further extending its service life. Furthermore, in this track suspension, the output end of the electric drive unit 1 is rotatably connected to the swing arm assembly 24, allowing the output end of the electric drive unit 1 to linearly drive the swing arm assembly 24 to swing, resulting in high transmission efficiency. Moreover, the overall structure of this track suspension is compact and reasonable, with relatively low complexity.

[0042] This invention solves the problem that the electric cylinder of the existing electric drive suspension occupies part of the space of the frame body 6, which restricts the overall layout of the frame body 6 and affects the arrangement and installation of other internal components.

[0043] Preferably, the electric drive component 1 is an electric cylinder.

[0044] Preferably, the electric drive unit 1 is positioned directly above the suspension body 2.

[0045] To further explain, this tracked suspension is installed between the chassis body 6 and the track 7.

[0046] like Figure 2 and 3 As shown, in one embodiment of this application, four inserts 211 are provided. The four inserts 211 are arranged in pairs, and the two pairs of inserts 211 are spaced apart along the height direction of the frame body 6. The two inserts 211 in the same pair are spaced apart along the horizontal direction. The shock absorber 23 and the swing arm assembly 24 are located between the four inserts 211. The two inserts 211 in the same pair are arranged in a figure-eight shape from the end closer to the frame body 6 to the end farther away from the frame body 6.

[0047] By setting four brackets 211, with the four brackets 211 arranged in pairs, the two pairs of brackets 211 are spaced apart along the height direction of the chassis body 6, and the two brackets 211 in the same pair are spaced apart along the horizontal direction. Furthermore, the two brackets 211 in the same pair are arranged in a figure-eight shape from the end closer to the chassis body 6 to the end farther away from the chassis body 6. In this way, when the track 7 is raised and lowered, that is, when the four brackets 211 are raised and lowered, the above structure can avoid the risk of these brackets 211 colliding with the swing arm assembly 24 or the shock absorption assembly, prevent the movement of the brackets 211 from being disturbed by external factors, and thus ensure that the track 7 can run smoothly.

[0048] like Figures 2 to 4 As shown, in one embodiment of this application, the insert 211 includes a first hinge portion 2111, a reinforcing portion 2112, a connecting portion 2113, and a second hinge portion 2114; one end of the first hinge portion 2111 is hingedly connected to the frame body 6, the other end of the first hinge portion 2111 is fixedly connected to the connecting portion 2113, the reinforcing portion 2112 is connected to the first hinge portion 2111 and the connecting portion 2113, one end of the connecting portion 2113 away from the first hinge portion 2111 is connected to the second hinge portion 2114, and the second hinge portion 2114 is hingedly connected to the track 7.

[0049] The first hinge portion 2111 is used to connect the frame body 6 and the connecting portion 2113; the reinforcing portion 2112 is connected to the first hinge portion 2111 and the connecting portion 2113. The reinforcing portion 2112 strengthens the connecting portion 2113 and can prevent the connecting portion 2113 from being damaged when subjected to external forces, further ensuring the connection stability and reliability of this track suspension; the second hinge portion 2114 is used to connect the connecting portion 2113 and the track 7. In this way, the bracket 211 can connect the frame body 6 and the track 7, and the track 7 can be raised and lowered through the bracket 211 to adjust the ground clearance of the track 7.

[0050] In one embodiment of this utility model, the connecting part 2113 is a connecting strip, which is rectangular and hollow inside. While ensuring sufficient strength and rigidity, the hollow connecting part 2113 can reduce its own weight, allowing the electric drive component 1 to transmit at a faster speed, thus making the track suspension run more smoothly. It can also reduce the load and energy consumption of the electric drive component 1, thereby reducing operating costs.

[0051] like Figure 3 As shown, in one embodiment of the present invention, the reinforcing part 2112 includes a plurality of triangular plates 2112a arranged around the connecting part 2113, and the two sides of the triangular plates 2112a are respectively connected to the first hinge part 2111 and the connecting part 2113.

[0052] like Figure 2 , 4 As shown in Figure 5, in one embodiment of this application, the fixing component 22 includes a connecting frame 221 and a support base 222. The connecting frame 221 is fixedly connected to the insert 211 located below, and the support base 222 is fixedly disposed on the connecting frame 221. The shock absorber 23 is rotatably connected to the support base 222.

[0053] The support 222, the shock absorber 23 and the swing arm assembly 24 are all located on the side of the connecting frame 221 close to the electric drive component 1, and the support 222 and the shock absorber 23 are located between several inserts 211.

[0054] By setting a connecting frame 221, several inserts 211 located below are connected. The connecting frame 221 can connect several inserts 211 located below. The support seat 222 can support and fix the shock absorber 23. When the electric drive unit 1 drives the shock absorber 23 to move through the swing arm assembly 24, it can drive the support seat 222 and the connecting frame 221 to move, as well as drive several inserts 211 located below to move, and then drive the track 7 to move, ultimately adjusting the ground clearance of the track 7 so that the track 7 can stably pass through complex terrain and mountain roads with a high degree of ruggedness.

[0055] Preferably, the connecting frame 221 is connected to the bottom end of a plurality of inserts 211 located below. In this way, all the inserts 211 are located on the side of the connecting frame 221 closer to the electric drive unit 1.

[0056] Preferably, the connecting frame 221 is connected to the plurality of inserts 211 located below by welding.

[0057] In one embodiment of this utility model, the connecting frame 221 has an internally hollow structure. While ensuring sufficient strength and rigidity, the internally hollow connecting frame 221 can reduce its own weight, allowing the electric drive component 1 to transmit power faster, ensuring the smooth operation of the track suspension, and also reducing the load and energy consumption of the electric drive component 1, thus reducing operating costs.

[0058] like Figure 5 and 6 As shown, in one embodiment of this application, the end face of the connecting frame 221 near the electric drive component 1 is provided with a receiving groove 2211, and the support base 222 is installed in the receiving groove 2211.

[0059] Installing the support base 222 into the receiving groove 2211, so that the shock absorber 23 connected to the support base 222 is installed at a lower height than the upper bracket 211, not only can the shock absorber 23 be prevented from interfering with the movement of the bracket 211, but also space waste can be reduced, making the structure of this track suspension more compact.

[0060] like Figure 5 As shown, in one embodiment of this utility model, the connecting frame 221 includes a frame body 2212 and a concave support plate 2213. The frame body 2212 has a groove corresponding to the concave support plate 2213 along its height direction. The concave support plate 2213 is fixedly installed in the groove. A receiving groove 2211 is opened on the end face of the concave support plate 2213 near the electric drive component 1, and the concave support plate 2213 protrudes from the frame body 2212 along its width direction. By providing the concave support plate 2213, and with the concave support plate 2213 protruding from the frame body 2212 along its width direction, the contact area between the concave support plate 2213 and the support base 222 is increased, which can provide more stable support for the support base 222, thereby ensuring a stable connection between the shock absorber 23 and the support base 222.

[0061] like Figure 6 As shown, in one embodiment of this utility model, the frame 2212 is in the shape of an inverted trapezoid.

[0062] like Figure 5 and 6As shown, in one embodiment of this application, the track suspension further includes a first pin 3 and a bushing 4; the support base 222 includes a base plate 2221 and a first mounting block 2222, the base plate 2221 is installed in the receiving groove 2211, and two opposing first mounting blocks 2222 are vertically arranged on the end face of the base plate 2221 near the electric drive component 1, the two first mounting blocks 2222 are spaced apart along the length direction of the base plate 2221, and a bushing 4 is respectively fitted at both ends of the first pin 3 in the length direction, the first pin 3 is fixed to the first mounting block 2222 by the bushing 4; the end of the shock absorber 23 away from the electric drive component 1 is rotatably connected to the first pin 3.

[0063] The base plate 2221 and the two first mounting blocks 2222 are set up, and the first pin 3 and bushing 4 are set up so that the end of the shock absorber 23 away from the electric drive component 1 is rotatably connected to the first pin 3, thereby realizing the rotatable connection between the shock absorber 23 and the fixed component 22, ensuring that the shock absorber 23 can still stably perform its shock absorption function even when subjected to external force.

[0064] In one embodiment of this utility model, the base plate 2221 and the concave support plate 2213 are detachably connected. This detachable connection allows for faster disassembly when the connecting frame 221 or support base 222 needs maintenance or replacement, improving work efficiency. Specifically, the base plate 2221 has a plurality of threaded holes extending along its thickness, and the concave support plate 2213 has mounting holes corresponding to these threaded holes extending along its height (the mounting holes are located on the concave support plate 2213 protruding from the frame 2212). Bolts pass through the mounting holes and are threadedly connected to the threaded holes. Alternatively, in another embodiment of this utility model, the base plate 2221 may have a plurality of mounting holes extending along its thickness, and the concave support plate 2213 may have threaded holes corresponding to these mounting holes extending along its height. Bolts may pass through the mounting holes in the base plate 2221 and be threadedly connected to the threaded holes in the concave support plate 2213.

[0065] like Figure 5 and 6 As shown, in one embodiment of this application, the fixing component 22 further includes a plurality of reinforcing plates 223, the reinforcing plates 223 connecting the connecting frame 221 and the insert 211, and the reinforcing plates 223 being perpendicularly connected to the connecting frame 221.

[0066] By setting several reinforcing plates 223, when the connecting frame 221 and the insert frame 211 are subjected to external forces, the reinforcing plates 223 can enhance the deformation resistance of the connection between the connecting frame 221 and the insert frame 211, enhance the structural strength of the connection, ensure the stable connection between the connecting frame 221 and the insert frame 211, and further guarantee the stability and reliability of this track suspension.

[0067] like Figure 3 , 4 As shown in Figures 7 to 7, in one embodiment of this application, the swing arm assembly 24 includes a first connecting shaft 241, a second connecting shaft 242, and two oppositely arranged transmission arms 243;

[0068] One end of each of the two drive arms 243 is rotatably connected to the frame body 6. The drive arms 243 extend toward the track 7 and are spaced apart along the length of the frame body 6. The other ends of the two drive arms 243 are fixedly connected to both ends of the first connecting shaft 241. The end of the shock absorber 23 near the electric drive component 1 is rotatably connected to the first connecting shaft 241.

[0069] The second connecting shaft 242 is disposed between the first connecting shaft 241 and the frame body 6, and the second connecting shaft 242 is parallel to the first connecting shaft 241. The two transmission arms 243 are fixedly connected to the two ends of the second connecting shaft 242 respectively. The output end of the electric drive unit 1 is rotatably connected to the second connecting shaft 242 so that the electric drive unit 1 simultaneously drives the two transmission arms 243 to swing towards the fixed component 22 in the direction of approaching and moving away from the ground.

[0070] One end of each of the two drive arms 243 is rotatably connected to the chassis body 6, and the ends of the two drive arms 243 near the track 7 are connected by the first connecting shaft 241, thus forming a stable connection between the two drive arms 243. By setting a second connecting shaft 242, which is located between the first connecting shaft 241 and the chassis body 6, when the output end of the electric drive unit 1 is connected to the second connecting shaft 242, the driving force generated by the electric drive unit 1 can be quickly transmitted to the drive arms 243, thereby rapidly driving the two drive arms 243 to move, effectively improving transmission efficiency. It can also further enable the shock absorber 23, the fixed component 22, and the bracket 211 to move quickly and stably, thereby ensuring the stable lifting and lowering of the track 7.

[0071] like Figure 1 As shown, and further explained, the output end of the electric drive unit 1 is provided with a socket 11, which is sleeved on the second connecting shaft 242. The output end of the electric drive unit 1 is rotatably connected to the second connecting shaft 242 through the socket 11. By providing the socket 11, the connection between the electric drive unit 1 and the second connecting shaft 242 is made more stable, and quick installation between the two can also be achieved.

[0072] In one embodiment of the present invention, two transmission arms 243 are connected to the two ends of the first connecting shaft 241 along its length; the two ends of the second connecting shaft 242 along its length are respectively connected to the two transmission arms 243, and the output end of the electric drive unit 1 is connected to the position between the two transmission arms 243.

[0073] like Figure 7 and 8 As shown, in another embodiment of this utility model, the swing arm assembly 24 further includes several brass sleeves 244 and several steel sleeves 245. Brass sleeves 244 are fitted at both ends of the first connecting shaft 241 and both ends of the second connecting shaft 242 in the length direction. The first connecting shaft 241 and the second connecting shaft 242 are connected to the transmission arm 243 through the brass sleeves 244. Each brass sleeve 244 is provided with a steel sleeve 245 on the side away from the end of the first connecting shaft 241 or the end of the second connecting shaft 242. The steel sleeve 245 limits the brass sleeve 244 and prevents the brass sleeve 244 from shifting during the movement of the transmission arm 243.

[0074] like Figure 4 and 7 As shown, in one embodiment of this application, the transmission arm 243 includes a horizontal segment 2431 and an arc segment 2432. One end of the horizontal segment 2431 is rotatably connected to the frame body 6. The horizontal segment 2431 extends toward the shock absorber 23. The other end of the horizontal segment 2431 is connected to the arc segment 2432. The end of the arc segment 2432 away from the horizontal segment 2431 is connected to the shock absorber 23 through a first connecting shaft 241. The second connecting shaft 242 is disposed at the connection between the horizontal segment 2431 and the arc segment 2432.

[0075] The transmission arm 243 includes a horizontal section 2431 and an arc-shaped section 2432. This is because the actual installation height of the shock absorber 23 may be different. By setting the arc-shaped section 2432, the transmission arm 243 can more flexibly adapt to the height of the shock absorber 23.

[0076] like Figure 2 and 3 As shown, in one embodiment of this application, the track suspension further includes a mounting base 5, which is detachably connected to the frame body 6, the insert 211 is hingedly connected to the mounting base 5, and the swing arm assembly 24 is rotatably connected to the mounting base 5.

[0077] By setting the mounting base 5, the connection between the bracket assembly 21, the swing arm assembly 24 and the frame body 6 is realized, which can ensure a stable connection between the bracket assembly 21 and the swing arm assembly 24 and the frame body 6, thereby ensuring the stability and reliability of this track suspension. Moreover, when maintenance is required, the detachable mounting base 5 allows the staff to quickly remove the mounting base 5 from the frame body 6 to maintain the bracket assembly 21 and the swing arm assembly 24, simplifying the disassembly steps, greatly improving maintenance efficiency, and reducing maintenance time and costs.

[0078] In one embodiment of this utility model, a plurality of inserts 211 are symmetrically distributed along the width direction of the mounting base 5 and are arranged close to the edge of the mounting base 5, which provides more space for the installation of the shock absorber 23 and the swing arm assembly 24.

[0079] like Figure 2 and 3 As shown, in one embodiment of this utility model, the mounting base 5 includes a mounting plate 51, a third connecting shaft 52, and a plurality of second mounting blocks 53; the plurality of second mounting blocks 53 are all disposed at one end of the mounting plate 51 near the track 7, the plurality of second mounting blocks 53 are symmetrically distributed along the width direction of the mounting plate 51, the plurality of second mounting blocks 53 correspond one-to-one with a plurality of inserts 211, and the plurality of inserts 211 are rotatably connected to the second mounting blocks 53 respectively, the two ends of the third connecting shaft 52 in the length direction are respectively connected to a second mounting block 53, and the swing arm assembly 24 is rotatably connected to the second mounting blocks 53 through the third connecting shaft 52.

[0080] In one embodiment of the present invention, each insert 211 is hinged to the second mounting block 53 via a second pin (not shown in the figure).

[0081] In one embodiment of this utility model, the ends of several inserts 211 away from the frame body 6 are connected to the track 7 via suspension seats 8, and each insert 211 is hinged to the suspension seat 8. The suspension seat 8 is detachably connected to the frame body 6.

[0082] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. An electrically driven adjustable track suspension, characterized in that, Including electric drive components and suspension body; The electric drive unit and the suspension body are respectively connected to the outer side wall of the frame body and located on the same side of the frame body. The electric drive unit is disposed above the suspension body, and the output end of the electric drive unit is disposed facing the suspension body. The suspension body includes a bracket assembly, a fixing assembly, a shock absorber, and a swing arm assembly. The bracket assembly includes several inserts arranged around the shock absorber and the swing arm assembly. Each insert has two ends hinged to the vehicle frame body and the track, respectively. The fixing assembly is fixedly connected to the several inserts located below it and is rotatably connected to the end of the shock absorber away from the electric drive component. One end of the swing arm assembly is rotatably connected to the vehicle frame body, and the other end is rotatably connected to the end of the shock absorber near the electric drive component. The output end of the electric drive component is rotatably connected to the swing arm assembly, and the electric drive component drives the end of the swing arm assembly near the fixing assembly to swing towards and away from the ground.

2. The electrically driven adjustable track suspension according to claim 1, characterized in that, The number of the inserts is four, and the four inserts are arranged in pairs. The two pairs of inserts are spaced apart along the height direction of the frame body. The two inserts in the same pair are spaced apart along the horizontal direction. The shock absorber and the swing arm assembly are located between the four inserts. The two inserts in the same pair are arranged in a figure-eight shape from the end closer to the frame body to the end farther away from the frame body.

3. The electrically driven adjustable track suspension according to claim 2, characterized in that, The insert includes a first hinge portion, a reinforcing portion, a connecting portion, and a second hinge portion; one end of the first hinge portion is hingedly connected to the vehicle frame body, the other end of the first hinge portion is fixedly connected to the connecting portion, the reinforcing portion is connected to the first hinge portion and the connecting portion, the end of the connecting portion away from the first hinge portion is connected to the second hinge portion, and the second hinge portion is hingedly connected to the track.

4. The electrically driven adjustable track suspension according to claim 1, characterized in that, The fixing component includes a connecting frame and a support base. The connecting frame is fixedly connected between the inserts located below, and the support base is fixedly disposed on the connecting frame. The shock absorber is rotatably connected to the support base. The support base, the shock absorber, and the swing arm assembly are all located on the side of the connecting frame closer to the electric drive component, and the support base and the shock absorber are located between several inserts.

5. The electrically driven adjustable track suspension according to claim 4, characterized in that, The connecting frame has a receiving groove on its end face near the electric drive component, and the support base is installed in the receiving groove.

6. The electrically driven adjustable track suspension according to claim 5, characterized in that, The track suspension also includes a first pin and a bushing; the support base includes a base plate and a first mounting block, the base plate is installed in the receiving groove, and two opposing first mounting blocks are vertically arranged on the end face of the base plate near the electric drive component. The two first mounting blocks are spaced apart along the length direction of the base plate. A bushing is fitted on each end of the first pin along its length direction, and the first pin is fixed to the first mounting block by the bushing. The end of the shock absorber away from the electric drive component is rotatably connected to the first pin.

7. The electrically driven adjustable track suspension according to claim 4, characterized in that, The fixing component also includes several reinforcing plates, which connect the connecting frame and the insert, and the reinforcing plates are perpendicularly connected to the connecting frame.

8. The electrically driven adjustable track suspension according to claim 1, characterized in that, The swing arm assembly includes a first connecting shaft, a second connecting shaft, and two oppositely arranged transmission arms; One end of each of the two drive arms is rotatably connected to the frame body, the drive arms extend toward the track, and the two drive arms are spaced apart along the length of the frame body. The other ends of the two drive arms are fixedly connected to both ends of the first connecting shaft, and the end of the shock absorber near the electric drive component is rotatably connected to the first connecting shaft. The second connecting shaft is disposed between the first connecting shaft and the vehicle frame body, and the second connecting shaft is parallel to the first connecting shaft. The two transmission arms are fixedly connected to both ends of the second connecting shaft, and the output end of the electric drive unit is rotatably connected to the second connecting shaft, so that the electric drive unit simultaneously drives the two transmission arms to swing towards the fixed component in a direction closer to and away from the ground.

9. The electrically driven adjustable track suspension according to claim 8, characterized in that, The transmission arm includes a horizontal section and an arc-shaped section. One end of the horizontal section is rotatably connected to the frame body. The horizontal section extends towards the shock absorber. The other end of the horizontal section is connected to the arc-shaped section. The end of the arc-shaped section away from the horizontal section is connected to the shock absorber through the first connecting shaft. The second connecting shaft is located at the connection between the horizontal section and the arc-shaped section.

10. The electrically driven adjustable track suspension according to claim 1, characterized in that, The track suspension also includes a mounting base, which is detachably connected to the vehicle frame body. The bracket is hinged to the mounting base, and the swing arm assembly is rotatably connected to the mounting base.

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