Remote control type crawler transport vehicle

Abstract

The invention discloses a remote control type crawler transport vehicle, which relates to the technical field of transport equipment, and comprises a crawler-type mobile chassis, a transmission case, a remote control device, a power supply device, a power supply device, a power supply device, a power supply device and a power supply device, and the transmission case is fixedly mounted at the top of the crawler-type mobile chassis; the bottom end of the lifting box is placed on the top of the transmission box, four stable telescopic rods are fixedly installed on the outer side of the transmission box, and the top ends of the four stable telescopic rods are all fixedly installed on the outer side of the lifting box; the bottom of the loading box is placed on the top of the lifting box, the left side of the loading box is rotationally connected to the left end of the lifting box, and the left end of the loading box is rotationally connected with a loading box rear sealing door. Automatic lifting and self-unloading operation of the loading box is achieved through the simple structure, and the material loading and unloading efficiency is greatly improved; and meanwhile, when the materials are conveyed to a certain high position, the materials in the loading box can be directly lifted to the high position, personnel can conveniently load and unload the materials, and the applicability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of transport equipment, and in particular to a remote-controlled crawler transport vehicle. Background Art

[0002] The crawler transporter has the characteristics of large carrying capacity, good maneuverability, and good environmental adaptability. It is an all-weather special vehicle that is suitable for mountainous and hilly areas. Whether it is driving on roads or dirt roads or gravel roads, it can carry the rated weight of goods and adopts a newly designed large-section, high-strength frame. It uses a high-power engine to achieve its strong climbing ability and smooth heavy-load start. It can smoothly climb complex and harsh road conditions such as mud, mountains, and grasslands. In the process of relocation and transportation, the crawler transporter can better meet the construction and transportation needs, adapt to poor road conditions, and has strong climbing ability. It can transport towers and poles up the mountain and transfer any items from the workshop to the warehouse. It is a very convenient means of transportation.

[0003] In the prior art, the Chinese patent document with application number: 202020030030.8 discloses a mountain remote-controlled crawler transporter, wherein the mountain remote-controlled crawler transporter includes a frame and a crawler mobile chassis, the frame includes a loading part and a motorized part, the loading part is used to load items; the motorized part is provided with a control mechanism, a braking mechanism and a driving mechanism; the braking mechanism includes a left steering electromagnet, a right steering electromagnet, a left crawler brake, and a right crawler brake; the left steering electromagnet is connected to the left crawler brake through a left electromagnet push rod; the right steering electromagnet is connected to the right crawler brake through a right electromagnet push rod. The utility model provides a mountain remote-controlled crawler transporter that can be used as a transport vehicle for operations in complex environments such as mountain mud, which can effectively solve the safe transportation of equipment or personnel in complex operating environments such as mountain mud, ensure the realization of operations, and realize remote control through wireless remote control to manipulate the walking function.

[0004] However, the above technical solution has the problem that although it can realize remote control of the crawler transporter to transport materials, it does not have a self-unloading function, and loading and unloading materials is time-consuming and labor-intensive. At the same time, the height of the loading box is fixed. When materials need to be transported to high places, external mechanical lifting and transportation are required. It has poor applicability and cannot meet the use requirements. For this reason, we proposed a remote-controlled crawler transporter to solve the above problems. Summary of the invention

[0005] The purpose of the present application is to provide a remote-controlled crawler transport vehicle to solve the problem raised in the above-mentioned background technology that although the crawler transport vehicle can be remotely controlled to transport materials, it does not have a self-unloading function, and loading and unloading materials is relatively time-consuming and labor-intensive. At the same time, the height of the loading box is fixed. When it is necessary to transport materials to high places, external mechanical lifting and transportation are required, and the applicability is poor and cannot meet the use requirements.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a remote-controlled crawler transport vehicle, comprising a crawler mobile chassis, the crawler transport vehicle also comprising:

[0007] A transmission box, wherein the transmission box is fixedly mounted on the top of the crawler-type mobile chassis;

[0008] A lifting box, wherein the bottom end of the lifting box is placed on the top of the transmission box, and four stable telescopic rods are fixedly installed on the outside of the transmission box, and the top ends of the four stable telescopic rods are fixedly installed on the outside of the lifting box;

[0009] A loading box, wherein the bottom of the loading box is placed on the top of the lifting box, and the left side of the loading box is rotatably connected to the left end of the lifting box, the left end of the loading box is rotatably connected to the loading box rear sealing door, the front and rear sides of the loading box are both rotatably connected to the first hydraulic rods, and the output shafts of the two first hydraulic rods are rotatably connected to the front and rear sides of the loading box rear sealing door respectively;

[0010] The second hydraulic rods are provided in two, the bottom ends of the two second hydraulic rods are both rotatably connected to the bottom inner wall of the lifting box, and the output shafts of the two second hydraulic rods both penetrate the top inner wall of the lifting box and are rotatably connected to the bottom of the loading box;

[0011] A buffer assembly, which is arranged inside the lifting box and matches with the bottom of the loading box;

[0012] The lifting component is arranged on the bottom inner wall of the transmission box, and the lifting component matches the bottom of the lifting box.

[0013] With the above structure, by starting the second hydraulic rod and cooperating through the rotating connection between the loading box and the lifting box, the loading box can be driven to flip to the left. At this time, starting the first hydraulic rod can drive the rear door of the loading box to flip and open the rear opening of the loading box, thereby realizing automatic unloading operation of materials that can be directly unloaded from the inside of the loading box, greatly improving the loading and unloading efficiency of materials.

[0014] Preferably, an anti-collision plate is fixedly mounted on the inner wall of the loading box.

[0015] Furthermore, by providing an anti-collision plate, the interior of the loading box can be protected to prevent stones or metal materials from damaging the loading box, thereby increasing its service life.

[0016] Preferably, a first through hole is provided on the top inner wall of the lifting box, and the output shafts of the two second hydraulic rods both pass through the first through hole and cooperate with the first through hole.

[0017] Furthermore, the first through hole can facilitate the connection and transmission between the second hydraulic rod and the loading box.

[0018] Preferably, four second springs are fixedly mounted on the inner wall of the bottom of the transmission box, and the top ends of the four second springs are fixedly mounted on the bottom of the lifting box.

[0019] Furthermore, by providing a second spring, the lifting box and the loading box can be assisted in their upward movement.

[0020] Preferably, the buffer assembly includes two rectangular tubes, two rectangular rods, two first springs, a support plate and two support rollers, the bottom ends of the two rectangular tubes are fixedly mounted on the bottom inner wall of the lifting box, the bottom end of the first spring is fixedly mounted on the bottom inner wall of the corresponding rectangular tube, the bottom end of the rectangular rod extends into the corresponding rectangular tube and is slidably connected to the inner wall of the rectangular tube, the top end of the first spring is fixedly mounted on the bottom end of the corresponding rectangular rod, the bottom of the support plate is respectively fixedly mounted on the top ends of the two rectangular rods, two rotating grooves are provided on the support plate, the support rollers are rotatably connected in the corresponding rotating grooves, a second through hole is provided on the top inner wall of the lifting box, the support plate is located in the second through hole, and the two support rollers are in rolling contact with the bottom of the loading box.

[0021] Furthermore, through the cooperation between two rectangular tubes, two rectangular rods, two first springs, the support plate and two support rollers, the loading box can be shock-absorbing and buffered when the loading box is flipped and reset, so that the loading box can stably return to the top of the lifting box, reducing the impact force when the loading box is reset, and the protection effect is good.

[0022] Preferably, the lifting assembly includes a motor, a double-axis screw, two bearing seats, two screw nuts, a scissor-type lifting rod and two sliders. The motor is fixedly mounted on the bottom inner wall of the transmission box, the right end of the double-axis screw is fixedly mounted on the output shaft of the motor, the left end of the double-axis screw is rotatably connected to the bottom inner wall of the transmission box, the two screw nuts are threadedly sleeved on the double-axis screw, the bottom ends of the scissor-type lifting rod are respectively rotatably connected to the top ends of the two screw nuts, the bottoms of the two sliders are respectively rotatably connected to the top ends of the scissor-type lifting rod, and the tops of the two sliders are both slidably connected to the bottom of the lifting box.

[0023] Furthermore, by starting the motor, the double-axis lead screw can be driven to rotate. At this time, the threaded connection between the double-axis lead screw and the two lead screw nuts can drive the two lead screw nuts closer to each other, and then the bottom ends of the scissor-type lifting rod can be driven closer to each other, so that the sliding limit cooperation between the two sliders and the bottom of the lifting box can cooperate with the scissor-type lifting rod to lift the lifting box and the loading box upward, thereby realizing the height adjustment of the loading box, so that when transporting materials to a certain height, the materials inside the loading box can be directly lifted to a high position, which can facilitate personnel to load and unload materials, and greatly improve the efficiency and effect of loading and unloading materials.

[0024] Preferably, two bearing seats are sleeved on the double-axis screw rod, and the bottoms of the two bearing seats are fixedly mounted to the bottom inner wall of the transmission box.

[0025] Furthermore, by providing a bearing seat, the double-axis screw rod can be stably rotationally limited and rotationally supported.

[0026] Preferably, a first slide groove is opened on the bottom inner wall of the transmission box, and the bottom ends of the two screw nuts are slidably connected in the first slide groove. A second slide groove is opened at the bottom of the lifting box, and the top ends of the two sliders are slidably connected in the second slide groove.

[0027] Furthermore, by providing the first sliding groove, the lead screw nut can be stably slidably limited and slidably supported, and by providing the second sliding groove, the slider and the top ends of the scissor-type lifting rod can be stably slidably limited and slidably supported.

[0028] The beneficial effects of the present invention are:

[0029] 1. By starting the second hydraulic rod and the rotation connection between the loading box and the lifting box, the loading box can be driven to flip to the left. At this time, starting the first hydraulic rod can drive the rear sealing door of the loading box to flip and open the rear opening of the loading box, so that the materials that can be directly unloaded in the loading box can be automatically unloaded, which greatly improves the loading and unloading efficiency of materials;

[0030] 2. Through the cooperation between the two rectangular tubes, the two rectangular rods, the two first springs, the support plate and the two support rollers, the loading box can be shock-absorbed and buffered when the loading box is flipped and reset, so that the loading box can be stably returned to the top of the lifting box, reducing the impact force when the loading box is reset, and the protection effect is good;

[0031] 3. By starting the motor, the double-axis screw rod can be driven to rotate. At this time, the threaded connection between the double-axis screw rod and the two screw nuts can drive the two screw nuts to approach each other, and then the bottom ends of the scissor-type lifting rod can be driven to approach each other, so that the sliding limit between the two sliders and the bottom of the lifting box can be cooperated with the scissor-type lifting rod to lift the lifting box and the loading box upward, so that the height of the loading box can be adjusted. When transporting materials to a certain height, the materials inside the loading box can be directly lifted to a high position, which can facilitate personnel to load and unload materials, greatly improving the efficiency and effect of loading and unloading materials.

[0032] The present invention realizes the automatic lifting and self-unloading operation of the loading box through a simple structure, greatly improving the loading and unloading efficiency of materials. At the same time, when transporting materials to a certain height, the materials inside the loading box can be directly lifted to a high position, which can facilitate personnel to load and unload materials and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a structural front view of an embodiment of the present application;

[0034] Figure 2 This is a main cross-sectional view of the transmission box and the lifting box of the embodiment of the present application;

[0035] Figure 3 Attached to the embodiments of this application Figure 2 The structural diagram of part A in the figure;

[0036] Figure 4 This is a schematic structural diagram of a loading box, a rear sealing door of the loading box, a first hydraulic rod and an anti-collision plate according to an embodiment of the present application;

[0037] Figure 5 This is a three-dimensional structural diagram of the rectangular tube, rectangular rod, support plate, rotating groove and support roller of an embodiment of the present application.

[0038] In the figure: 1. crawler mobile chassis; 2. transmission box; 3. lifting box; 4. stabilizing telescopic rod; 5. loading box; 6. rear sealing door of loading box; 7. first hydraulic rod; 8. anti-collision plate; 9. second hydraulic rod; 10. first through hole; 11. rectangular tube; 12. rectangular rod; 13. first spring; 14. support plate; 15. rotating groove; 16. support roller; 17. second through hole; 18. motor; 19. double-axis screw; 20. bearing seat; 21. screw nut; 22. first slide groove; 23. scissor-type lifting rod; 24. slider; 25. second slide groove; 26. second spring. DETAILED DESCRIPTION

[0039] The present invention will be further explained below in conjunction with specific embodiments.

[0040] refer to Figure 1-Figure 5 In this embodiment, a remote-controlled crawler transport vehicle is proposed, including a crawler mobile chassis 1, and the crawler transport vehicle also includes:

[0041] A transmission box 2, wherein the transmission box 2 is fixedly mounted on the top of the crawler-type mobile chassis 1;

[0042] A lifting box 3, wherein the bottom end of the lifting box 3 is placed on the top of the transmission box 2, and four stable telescopic rods 4 are fixedly installed on the outside of the transmission box 2, and the top ends of the four stable telescopic rods 4 are fixedly installed on the outside of the lifting box 3;

[0043] A loading box 5, the bottom of which is placed on the top of the lifting box 3, and the left side of the loading box 5 is rotatably connected to the left end of the lifting box 3, the left end of the loading box 5 is rotatably connected to a loading box rear sealing door 6, the front and rear sides of the loading box 5 are both rotatably connected to first hydraulic rods 7, and the output shafts of the two first hydraulic rods 7 are rotatably connected to the front and rear sides of the loading box rear sealing door 6 respectively;

[0044] The second hydraulic rod 9 is provided in two pieces, the bottom ends of the two second hydraulic rods 9 are both rotatably connected to the bottom inner wall of the lifting box 3, and the output shafts of the two second hydraulic rods 9 pass through the top inner wall of the lifting box 3 and are rotatably connected to the bottom of the loading box 5;

[0045] A buffer assembly, which is arranged inside the lifting box 3 and matches with the bottom of the loading box 5;

[0046] The lifting component is arranged on the bottom inner wall of the transmission box 2, and the lifting component matches the bottom of the lifting box 3.

[0047] With the above structure, by starting the second hydraulic rod 9 and through the rotational connection between the loading box 5 and the lifting box 3, the loading box 5 can be driven to flip to the left. At this time, starting the first hydraulic rod 7 can drive the rear sealing door 6 of the loading box to flip and open the rear opening of the loading box 5, thereby realizing automatic unloading operation of materials that can be directly unloaded from the loading box 5, greatly improving the loading and unloading efficiency of materials.

[0048] In this embodiment, an anti-collision plate 8 is fixedly installed on the inner wall of the loading box 5. The anti-collision plate 8 can protect the interior of the loading box 5 to prevent stones or metal materials from damaging the loading box 5, thereby increasing its service life.

[0049] In this embodiment, a first through hole 10 is opened on the top inner wall of the lifting box 3, and the output shafts of the two second hydraulic rods 9 both pass through the first through hole 10 and cooperate with the first through hole 10. By opening the first through hole 10, the connection and transmission between the second hydraulic rod 9 and the loading box 5 can be facilitated.

[0050] In this embodiment, four second springs 26 are fixedly installed on the bottom inner wall of the transmission box 2, and the top ends of the four second springs 26 are fixedly installed on the bottom of the lifting box 3. The second springs 26 can assist the lifting box 3 and the loading box 5 in moving upward.

[0051] In this embodiment, the buffer assembly includes two rectangular tubes 11, two rectangular rods 12, two first springs 13, a support plate 14 and two support rollers 16. The bottom ends of the two rectangular tubes 11 are fixedly mounted on the bottom inner wall of the lifting box 3. The bottom ends of the first springs 13 are fixedly mounted on the bottom inner wall of the corresponding rectangular tube 11. The bottom ends of the rectangular rods 12 extend into the corresponding rectangular tubes 11 and are slidably connected to the inner wall of the rectangular tube 11. The top ends of the first springs 13 are fixedly mounted on the bottom ends of the corresponding rectangular rods 12. The bottoms of the support plates 14 are respectively fixedly mounted on the top ends of the two rectangular rods 12. Two rotating grooves 15 are provided, and support rollers 16 are rotatably connected in the corresponding rotating grooves 15. A second through hole 17 is provided on the top inner wall of the lifting box 3, and the support plate 14 is located in the second through hole 17. The two support rollers 16 are in rolling contact with the bottom of the loading box 5. Through the cooperation between the two rectangular tubes 11, the two rectangular rods 12, the two first springs 13, the support plate 14 and the two support rollers 16, the loading box 5 can be shock-absorbing and buffered when the loading box 5 is flipped and reset, so that the loading box 5 can stably return to the top of the lifting box 3, reduce the impact force when the loading box 5 is reset, and the protection effect is good.

[0052] In this embodiment, the lifting assembly includes a motor 18, a double-axis screw 19, two bearing seats 20, two screw nuts 21, a scissor-type lifting rod 23 and two sliders 24. The motor 18 is fixedly mounted on the bottom inner wall of the transmission box 2, the right end of the double-axis screw 19 is fixedly mounted on the output shaft of the motor 18, the left end of the double-axis screw 19 is rotatably connected to the bottom inner wall of the transmission box 2, the two screw nuts 21 are both threadedly sleeved on the double-axis screw 19, the bottom ends of the scissor-type lifting rod 23 are respectively rotatably connected to the top ends of the two screw nuts 21, the bottoms of the two sliders 24 are respectively rotatably connected to the top ends of the scissor-type lifting rod 23, and the tops of the two sliders 24 are both slidably connected to the bottom of the lifting box 3. By starting the motor 18, the double-axis screw rod 19 can be driven to rotate. At this time, the threaded connection between the double-axis screw rod 19 and the two screw nuts 21 can drive the two screw nuts 21 to approach each other, and at this time, the bottom ends of the scissor-type lifting rod 23 can be driven to approach each other, so that the sliding limit between the two sliders 24 and the bottom of the lifting box 3 can be cooperated with the scissor-type lifting rod 23 to lift the lifting box 3 and the loading box 5 upward, so that the height of the loading box 5 can be adjusted, so that when transporting materials to a certain height, the materials inside the loading box 5 can be directly lifted to a high position, which can facilitate personnel to load and unload materials, and greatly improve the efficiency and effect of loading and unloading materials.

[0053] In this embodiment, two bearing seats 20 are mounted on the double-axis screw rod 19, and the bottoms of the two bearing seats 20 are fixedly mounted to the bottom inner wall of the transmission box 2. By setting the bearing seats 20, the double-axis screw rod 19 can be stably rotationally limited and rotationally supported.

[0054] In this embodiment, a first sliding groove 22 is opened on the inner wall of the bottom of the transmission box 2, and the bottom ends of the two lead screw nuts 21 are slidably connected in the first sliding groove 22. A second sliding groove 25 is opened at the bottom of the lifting box 3, and the top ends of the two sliders 24 are slidably connected in the second sliding groove 25. By opening the first sliding groove 22, the lead screw nut 21 can be stably slidably limited and slidably supported. By opening the second sliding groove 25, the top ends of the slider 24 and the scissor-type lifting rod 23 can be stably slidably limited and slidably supported.

[0055] It should be noted that the specific types of the first hydraulic rod 7, the second hydraulic rod 9 and the motor 18 to be used are selected by relevant technicians familiar with the field, and the above-mentioned first hydraulic rod 7, the second hydraulic rod 9 and the motor 18 are all existing technologies and will not be elaborated in this solution.

[0056] The crawler mobile chassis 1, control mechanism, braking mechanism, drive mechanism and gearbox adopt existing technology, and can be directly used using the structure of patent application number 202020030030.8, so they will not be described in detail.

[0057] Working principle: when in use, firstly, by starting the second hydraulic rod 9 and cooperating with the rotation connection between the loading box 5 and the lifting box 3, the loading box 5 can be driven to flip to the left. At this time, starting the first hydraulic rod 7 can drive the rear sealing door 6 of the loading box to flip and open the rear opening of the loading box 5, so that the material that can be directly unloaded inside the loading box 5 can be automatically unloaded, which greatly improves the loading and unloading efficiency of the material. Here, through the cooperation between the two rectangular tubes 11, the two rectangular rods 12, the two first springs 13, the support plate 14 and the two support rollers 16, the loading box 5 can be shock-absorbing and buffered when it is flipped and reset, so that the loading box 5 can stably return to the top of the lifting box 3, reducing the loading box 5 from returning to the top of the lifting box 3. The impact force when in position is good, and the protection effect is good. In addition, by starting the motor 18, the double-axis screw rod 19 can be driven to rotate. At this time, the threaded connection between the double-axis screw rod 19 and the two screw nuts 21 can drive the two screw nuts 21 to approach each other, and at this time, the bottom ends of the scissor-type lifting rod 23 can be driven to approach each other, so that the sliding limit between the two sliders 24 and the bottom of the lifting box 3 can be cooperated with the scissor-type lifting rod 23 to lift the lifting box 3 and the loading box 5 upward, so that the height adjustment of the loading box 5 can be achieved, so that when transporting materials to a certain height, the materials inside the loading box 5 can be directly lifted to a high position, which can facilitate personnel to load and unload materials, and greatly improve the efficiency and effect of loading and unloading materials.

[0058] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A remote-controlled crawler transport vehicle, comprising a crawler mobile chassis (1), characterized in that: The crawler transporter also includes: A transmission box (2), wherein the transmission box (2) is fixedly mounted on the top of the crawler-type mobile chassis (1); A lifting box (3), wherein the bottom end of the lifting box (3) is placed on the top of the transmission box (2), and four stable telescopic rods (4) are fixedly installed on the outside of the transmission box (2), and the top ends of the four stable telescopic rods (4) are fixedly installed on the outside of the lifting box (3); A loading box (5), wherein the bottom of the loading box (5) is placed on the top of the lifting box (3), and the left side of the loading box (5) is rotatably connected to the left end of the lifting box (3), the left end of the loading box (5) is rotatably connected to the loading box rear sealing door (6), the front and rear sides of the loading box (5) are both rotatably connected to the first hydraulic rods (7), and the output shafts of the two first hydraulic rods (7) are rotatably connected to the front and rear sides of the loading box rear sealing door (6) respectively; The second hydraulic rod (9) is provided in two pieces, the bottom ends of the two second hydraulic rods (9) are both rotatably connected to the bottom inner wall of the lifting box (3), and the output shafts of the two second hydraulic rods (9) pass through the top inner wall of the lifting box (3) and are rotatably connected to the bottom of the loading box (5); A buffer assembly, the buffer assembly being arranged inside the lifting box (3) and cooperating with the bottom of the loading box (5); A lifting component is provided on the inner wall of the bottom of the transmission box (2), and the lifting component matches the bottom of the lifting box (3).

2. The remote-controlled crawler transporter according to claim 1, characterized in that: An anti-collision plate (8) is fixedly mounted on the inner wall of the loading box (5).

3. The remote-controlled crawler transporter according to claim 1, characterized in that: A first through hole (10) is provided on the top inner wall of the lifting box (3), and the output shafts of the two second hydraulic rods (9) both pass through the first through hole (10) and match with the first through hole (10).

4. The remote-controlled crawler transporter according to claim 1, characterized in that: Four second springs (26) are fixedly mounted on the inner wall of the bottom of the transmission box (2), and the top ends of the four second springs (26) are fixedly mounted on the bottom of the lifting box (3).

5. The remote-controlled crawler transporter according to claim 1, characterized in that: The buffer assembly comprises two rectangular tubes (11), two rectangular rods (12), two first springs (13), a support plate (14) and two support rollers (16); the bottom ends of the two rectangular tubes (11) are fixedly mounted on the bottom inner wall of the lifting box (3); the bottom ends of the first springs (13) are fixedly mounted on the bottom inner wall of the corresponding rectangular tube (11); the bottom ends of the rectangular rods (12) extend into the corresponding rectangular tube (11) and are slidably connected to the inner wall of the rectangular tube (11); the first springs (13) are fixedly mounted on the bottom inner wall of the corresponding rectangular tube (11); The top of the lifting box (3) is fixedly mounted on the bottom of the corresponding rectangular rod (12), the bottom of the support plate (14) is respectively fixedly mounted on the top of the two rectangular rods (12), the support plate (14) is provided with two rotation grooves (15), the support rollers (16) are rotatably connected in the corresponding rotation grooves (15), a second through hole (17) is provided on the top inner wall of the lifting box (3), the support plate (14) is located in the second through hole (17), and the two support rollers (16) are in rolling contact with the bottom of the loading box (5).

6. The remote-controlled crawler transporter according to claim 1, characterized in that: The lifting assembly comprises a motor (18), a double-axis screw (19), two bearing seats (20), two screw nuts (21), a scissor-type lifting rod (23) and two sliders (24). The motor (18) is fixedly mounted on the bottom inner wall of the transmission box (2). The right end of the double-axis screw (19) is fixedly mounted on the output shaft of the motor (18). The left end of the double-axis screw (19) is rotatably connected to the bottom inner wall of the transmission box (2). The two screw nuts (21) are both threadedly sleeved on the double-axis screw (19). The two ends of the bottom of the scissor-type lifting rod (23) are respectively rotatably connected to the top ends of the two screw nuts (21). The bottoms of the two sliders (24) are respectively rotatably connected to the two ends of the top of the scissor-type lifting rod (23). The tops of the two sliders (24) are both slidably connected to the bottom of the lifting box (3).

7. The remote-controlled crawler transporter according to claim 6, characterized in that: The double-axis screw rod (19) is sleeved with two bearing seats (20), and the bottoms of the two bearing seats (20) are fixedly mounted on the bottom inner wall of the transmission box (2).

8. The remote-controlled crawler transporter according to claim 6, characterized in that: A first slide groove (22) is provided on the inner wall of the bottom of the transmission box (2), and the bottom ends of the two screw nuts (21) are slidably connected in the first slide groove (22). A second slide groove (25) is provided on the bottom of the lifting box (3), and the top ends of the two sliders (24) are slidably connected in the second slide groove (25).

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