A hill descent control device for fully loaded transport trucks

Abstract

This utility model relates to the field of steep slope descent technology, specifically to a steep slope descent device for a fully loaded transport truck, including a descent component and a retarder. A gear is fixed to one side of the retarder, and an oil reservoir is fixed to the other side. An adsorption component is disposed on the oil reservoir. A magnetic rod is installed inside the oil reservoir, which can capture fine metal residues generated in the oil circulation system through magnetic adsorption, preventing them from re-entering the retarder with the oil circulation. This reduces the risk of wear on internal components of the retarder caused by metal impurities, maintains the oil flow characteristics and pressure stability, and extends the service life of the retarder and the oil circulation system. When the vehicle is running, the vibrations can cause the magnetic rod to rotate. During rotation, different parts of the magnetic rod surface continuously come into dynamic contact with different areas of oil, increasing the effective adsorption area of ​​the magnetic rod surface and more fully capturing suspended and flowing fine metal impurities in the oil, thus improving the impurity adsorption efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steep slope descent technology, specifically to a steep slope descent device for a fully loaded transport truck. Background Technology

[0002] A hill descent control device for fully loaded trucks is an auxiliary braking device. Utilizing hydraulic principles, it converts the vehicle's kinetic energy into heat energy and dissipates it when the truck is fully loaded and descending a slope, thereby generating continuous and stable braking force. This effectively reduces the risk of brake pads overheating and failing due to prolonged braking, while also reducing the driver's workload and ensuring the safety and stability of the truck when driving on steep slopes. It also prevents dangerous situations such as slippage and loss of control caused by braking system failure.

[0003] In the prior art, a hydraulic retarder with patent application number CN201810700359.8 includes a rotor, a stator, and an inlet / outlet channel housing. Each blade of the stator has a working fluid inlet, and the stator housing has a working fluid outlet along its circumference. On the side of the inlet / outlet channel housing fixed to the stator, there are a working fluid inlet channel and a working fluid outlet channel. The working fluid inlet channel and the working fluid outlet channel are concentrically distributed with the drive shaft through-hole. The working fluid inlet communicates with the working fluid inlet channel, and the working fluid outlet communicates with the working fluid outlet channel. The inlet / outlet channel housing has air inlet and outlet holes; one end of the air inlet and outlet holes communicates with the working fluid outlet channel, and the other end communicates with the outside of the hydraulic retarder. This invention utilizes the working fluid outlet and the air inlet / outlet holes communicating with the working fluid outlet channel to complete the air intake and exhaust function of the working chamber, eliminating the need for air holes on the stator blades. This increases the speed of air intake / exhaust and the filling of working fluid, thereby reducing the response time of the hydraulic retarder's output torque.

[0004] The hydraulic retarder has an oil reservoir on one side to provide hydraulic oil for the oil circulation during operation, ensuring a continuous and stable output of braking force. In the oil circulation system, metal parts such as the pump gears, control valve cores, and inner walls of pipelines wear due to long-term friction or pressure impact, forming metal particles that enter the oil reservoir. If such small metal residues are present in the oil reservoir, they will enter the system with the oil circulation, causing wear on the internal components of the retarder, interfering with the oil flow characteristics and pressure stability, and affecting the braking response accuracy and braking performance stability of the retarder. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a steep slope descent device for fully loaded transport trucks, which can effectively solve the problem that metal parts such as oil pump gears, control valve cores, and inner walls of pipelines will wear due to long-term friction or pressure impact, forming metal particles that enter the oil tank.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a steep slope descent device for a fully loaded transport truck, including a descent component, including a retarder, a gear fixed on one side of the retarder, and an oil tank fixed on the other side of the retarder;

[0008] An adsorption assembly is disposed on the oil storage tank and includes an adsorption element, the adsorption element including a magnetic rod located inside the oil storage tank, a drive housing provided at one end of the magnetic rod, the drive housing being rotatably connected to one side of the oil storage tank, and a movable rod provided above the drive housing.

[0009] Furthermore, the adsorption assembly also includes a rotating component, which includes a rotating sleeve. The rotating sleeve is fixed to one side of the drive housing, and a squeezing column is movably connected to one side of the rotating sleeve.

[0010] Furthermore, a first spring is fixed to one side of the extrusion column, one end of the first spring is rotatably connected to the inside of the drive housing, an extrusion groove is provided inside the rotating sleeve, an extrusion strip is slidably connected inside the extrusion groove, and the extrusion strip is fixed to one side of the extrusion column.

[0011] Furthermore, a connecting rod is fixed to one side of the extrusion column, a guide frame is movably connected to the outside of the connecting rod, the guide frame is fixed to the bottom of the movable rod, a positioning plate is movably connected to the outside of the movable rod, and the positioning plate is fixed to one side of the oil storage tank.

[0012] Furthermore, the adsorption assembly also includes a movable component, which includes a second spring. One end of the second spring is fixed to the bottom of the movable rod, and the other end of the second spring is fixed to the top of the positioning plate. A counterweight is fixed to the top of the movable rod.

[0013] Furthermore, a piston rod is hinged to one side of the movable rod, and a positioning sleeve is movably connected to the outside of the piston rod. The positioning sleeve is hinged to one side of the oil reservoir.

[0014] Furthermore, a protective sleeve is fixed to one side of the oil storage tank, and a baffle is hinged to one side of the protective sleeve. The baffle is located at one end of the magnetic rod, and a torsion spring is fixed to one side of the baffle. One end of the torsion spring is fixed to the top of the protective sleeve.

[0015] Furthermore, a locking rod is fixed to one side of the protective sleeve, and a locking plate is fitted on the outside of the locking rod, with the locking plate fixed to one side of the oil storage tank.

[0016] Compared with the known prior art, the technical solution provided by this utility model has the following beneficial effects: by setting a magnetic rod in the oil tank, the fine metal residue impurities generated in the oil circulation system can be captured by magnetic adsorption, preventing them from re-entering the retarder with the oil circulation, reducing the risk of wear of the internal components of the retarder by metal impurities, maintaining the oil flow characteristics and pressure stability, and extending the service life of the retarder and the oil circulation system.

[0017] When the vibration generated by the car is running, the magnetic rod can rotate. In the rotating state, various parts of the magnetic rod surface continuously come into dynamic contact with different areas of oil as it rotates. The effective area of ​​the magnetic rod surface participating in adsorption increases, which can more fully capture the suspended and flowing fine metal impurities in the oil and improve the impurity adsorption efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the oil storage tank of this utility model;

[0021] Figure 3 This is a schematic diagram of the movable rod of this utility model;

[0022] Figure 4 This is a schematic cross-sectional view of the rotating sleeve of this utility model;

[0023] Figure 5 This is a schematic diagram of the extrusion strip of this utility model;

[0024] Figure 6 This is a schematic diagram of the baffle of this utility model.

[0025] The labels in the diagram represent: 1. Deceleration assembly; 11. Retarder; 12. Gear; 13. Oil reservoir; 2. Adsorption assembly; 21. Adsorption element; 211. Magnetic rod; 212. Drive housing; 213. Movable rod; 22. Rotating element; 221. Rotating sleeve; 222. Extrusion column; 223. First spring; 224. Extrusion groove; 225. Extrusion strip; 226. Connecting rod; 227. Guide frame; 228. Positioning plate; 23. Movable element; 231. Second spring; 232. Counterweight; 233. Piston rod; 234. Positioning sleeve; 235. Protective sleeve; 236. Baffle; 237. Torsion spring; 238. Locking rod; 239. Locking plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] The present invention will be further described below with reference to the embodiments.

[0028] Example: A steep slope descent device for a fully loaded transport truck, as shown in the attached document. Figure 1 -Appendix Figure 6 It includes a descent control assembly 1, which includes a retarder 11. A gear 12 is fixed on one side of the retarder 11, and an oil reservoir 13 is fixed on the other side of the retarder 11.

[0029] When the retarder 11 is working, it relies on the principle of liquid damping. In the working chamber formed by the stator and rotor impeller, it generates braking resistance by transmitting torque through oil, controlling the damping force of the wheels and the vehicle body. It flexibly adapts to the driving changes of complex and bumpy road surfaces in the mine, ensuring the stability of the vehicle body. At the same time, it can convert the gravitational potential energy of the vehicle when going downhill into heat energy generated by oil friction and impact, and then dissipate it through the heat exchanger in conjunction with the engine cooling system. This prevents the excessive conversion of gravitational potential energy into kinetic energy, which could lead to loss of vehicle speed control. As the second layer of safety protection of the service braking system, it can bear most of the braking load of heavy-duty vehicles, reduce the frequency of use of the service brake, prevent the brake pads from overheating and failing due to prolonged braking, ensure stable braking performance, and maximize the driving safety of mining transportation on long slopes and complex road conditions.

[0030] Gear 12 transmits the torque and speed of the vehicle transmission system to the rotor shaft of the retarder 11, driving the rotor impeller to rotate at high speed. This provides the necessary power for the braking damping of the working chamber of the retarder 11. By optimizing the transmission ratio, the rotor speed can be further increased to enhance the braking torque, thus meeting the forced braking requirements of heavy-duty mining conditions. The oil tank 13 supplies fluid to the working chamber of the retarder 11 to ensure timely braking response. After braking, the oil that has absorbed heat and heated up in the working chamber flows back to the oil tank 13 for temporary storage. After being cooled by the connected heat exchanger, it is circulated for backup, preventing the continuous circulation of high-temperature oil from aggravating component wear.

[0031] Adsorption assembly 2 is disposed on oil storage tank 13 and includes adsorption element 21. Adsorption element 21 includes magnetic rod 211. Magnetic rod 211 is located inside oil storage tank 13. One end of magnetic rod 211 is provided with drive housing 212. Drive housing 212 is rotatably connected to one side of oil storage tank 13. Movable rod 213 is provided above drive housing 212.

[0032] The magnetic rod 211 is located inside and rotatably connected to the lower part of the oil reservoir 13. The adsorption grooves on the surface of the magnetic rod 211 increase the contact area between itself and the oil and impurities, thereby improving the adsorption capacity and retention stability of metal impurities. The magnetic rod 211 generates a magnetic field by means of its own magnetism, which can form an adsorption force on the small metal impurities generated by component wear during oil circulation. At the same time, the impurities in the oil reservoir 13 settle to the lower part of the oil reservoir 13 under the action of gravity and come into contact with the magnetic rod 211. They are then firmly adsorbed by the adsorption grooves on the surface of the magnetic rod 211 and the magnetic field, achieving efficient retention of impurities. When the car is running, vibrations will occur, which will cause the movable rod 213 to move up and down reciprocally. Then, by moving the movable rod 213, the drive housing 212 can be rotated. A slot is provided on one side of the drive housing 212. A corresponding locking block is fixed at one end of the magnetic rod 211. When the magnetic rod 211 is installed in the oil tank 13, the locking block can engage with the slot. When the drive housing 212 rotates, the slot squeezes the locking block, thereby causing the magnetic rod 211 to rotate. The bottom of the inner wall of the oil tank 13 is provided with an inclined surface. The magnetic rod 211 is located on one side of the inclined surface. The inclined surface at the bottom of the inner wall of the oil tank 13 can guide impurities to converge to one side with the oil. The magnetic rod 211 is located on one side of the inclined surface, which can more efficiently adsorb the converged metal impurities and improve the impurity interception effect.

[0033] Specifically, the adsorption component 2 also includes a rotating component 22, which includes a rotating sleeve 221. The rotating sleeve 221 is fixed to one side of the drive housing 212, and a squeezing column 222 is movably connected to one side of the rotating sleeve 221.

[0034] The movement of the extrusion column 222 will cause the rotating sleeve 221 to rotate, and the rotation of the rotating sleeve 221 will then cause the drive housing 212 to rotate.

[0035] Furthermore, a first spring 223 is fixed to one side of the extrusion column 222. One end of the first spring 223 is rotatably connected to the drive housing 212. An extrusion groove 224 is opened in the rotating sleeve 221. An extrusion strip 225 is slidably connected in the extrusion groove 224. The extrusion strip 225 is fixed to one side of the extrusion column 222.

[0036] When the extrusion column 222 moves, it can drive the extrusion strip 225 to move. At this time, the movement of the extrusion strip 225 will squeeze the extrusion groove 224, thereby driving the rotating sleeve 221 to rotate. The movement of the extrusion column 222 can apply a squeezing force to the first spring 223. The rebound force of the first spring 223 can make the extrusion column 222 return to its original position, thereby driving the extrusion strip 225 to squeeze the extrusion groove 224 again. This process can be repeated to make the rotating sleeve 221 rotate. The rotation of the rotating sleeve 221 can make the magnetic rod 211 rotate inside the oil storage tank 13.

[0037] Preferably, a connecting rod 226 is fixed to one side of the extrusion column 222, a guide frame 227 is movably connected to the outside of the connecting rod 226, the guide frame 227 is fixed to the bottom of the movable rod 213, a positioning plate 228 is movably connected to the outside of the movable rod 213, and the positioning plate 228 is fixed to one side of the oil storage tank 13.

[0038] A guide strip is fixed to one end of the connecting rod 226. A guide groove corresponding to the guide strip is provided on the guide frame 227. When the movable rod 213 moves up and down, it can drive the guide frame 227 to move. The movement of the guide frame 227 will cause the guide groove to squeeze the guide strip. At this time, the connecting rod 226 can be moved. The movement of the connecting rod 226 can drive the squeezing column 222 to move. The positioning plate 228 is used to support the movable rod 213 and prevent the movable rod 213 from deviating.

[0039] It should be noted that the adsorption assembly 2 also includes a movable component 23, which includes a second spring 231. One end of the second spring 231 is fixed to the bottom of the movable rod 213, and the other end of the second spring 231 is fixed to the top of the positioning plate 228. A counterweight 232 is fixed to the top of the movable rod 213.

[0040] When the vehicle vibrates, causing the movable rod 213 to move up and down, the movable rod 213 will compress the second spring 231, causing the second spring 231 to undergo elastic deformation and store elastic potential energy. Then, the second spring 231 will release the elastic potential energy to push the movable rod 213 back to its initial position. The counterweight 232 is used to increase the overall weight of the movable rod 213, which can improve the sensitivity of the movable rod 213 to vehicle vibration, so that the movable rod 213 can respond to the vibration force during vehicle operation more quickly and fully. By using gravity to enhance the inertia of the movable rod 213 during movement, the driving force of the movable rod 213 on the lower guide frame 227 is increased, thereby ensuring the subsequent transmission efficiency and ensuring the rotation speed and stability of the magnetic rod 211 in the oil tank 13, providing a basis for the efficient adsorption of metal impurities.

[0041] Furthermore, a piston rod 233 is hinged to one side of the movable rod 213, and a positioning sleeve 234 is movably connected to the outside of the piston rod 233. The positioning sleeve 234 is hinged to one side of the oil reservoir 13.

[0042] A return spring is fixed to one side of the piston rod 233, with one end of the return spring fixed to the inner wall of the positioning sleeve 234. The piston rod 233 serves to guide the movement trajectory of the movable rod 213 and improve its motion stability. When vehicle vibration drives the movable rod 213 to move up and down reciprocally, the movable rod 213 will drive the piston rod 233 to move synchronously through the hinge point, causing the piston rod 233 to extend and retract axially within the positioning sleeve 234. At the same time, the return spring on one side of the piston rod 233 will undergo elastic deformation with its extension and retraction, which not only helps to buffer the impact force when the movable rod 213 moves, preventing the movable rod 213 from shifting or shaking due to vibration, but also helps to buffer the impact force when the movable rod 213 moves, preventing the movable rod 213 from shifting or shaking due to vibration, and also helps to prevent the movable rod 213 from shifting or shaking due to vibration. 3. During the reset process, additional driving force is provided to ensure the smoothness of the reciprocating motion of the movable rod 213, thereby ensuring the stability of the subsequent rotation of the magnetic rod 211 driven by the drive housing 212 and maintaining the adsorption effect of metal impurities. The internal cavity of the positioning sleeve 234 provides a stable channel for the extension and retraction of the piston rod 233, preventing the piston rod 233 from radially deviating when moving with the movable rod 213. At the same time, the positioning sleeve 234 provides reliable support for the connection structure between the piston rod 233 and the movable rod 213, improving the stability of the entire movable part 23 installed on the side of the oil reservoir 13. A glass cover is fixed on one side of the positioning sleeve 234 for easy observation of the interior during maintenance.

[0043] Specifically, a protective sleeve 235 is fixed to one side of the oil tank 13, and a baffle 236 is hinged to one side of the protective sleeve 235. The baffle 236 is located at one end of the magnetic rod 211, and a torsion spring 237 is fixed to one side of the baffle 236. One end of the torsion spring 237 is fixed to the top of the protective sleeve 235.

[0044] When the magnetic rod 211 is installed in the oil reservoir 13, the baffle 236 is closed, and a torsional force can be applied to the torsion spring 237. By closing the baffle 236, a bearing is fixed on one side of the baffle 236, and one end of the magnetic rod 211 is in contact with the bearing side. Closing the baffle 236 can limit the magnetic rod 211, allowing it to rotate within the oil reservoir 13. By releasing the limit on the baffle 236, the baffle 236 can then rotate back to its original position by the force of the torsion spring 237. At this time, the baffle 236 is opened, and the operator can remove the magnetic rod 211 for cleaning. The protective sleeve 235 is used to support the baffle 236 and prevent it from shifting.

[0045] Preferably, a locking rod 238 is fixed to one side of the protective sleeve 235, and a locking plate 239 is fitted on the outside of the locking rod 238. The locking plate 239 is fixed to one side of the oil storage tank 13.

[0046] A locking groove corresponding to the locking rod 238 is provided on one side of the locking plate 239. The locking rod 238 is an elastic element with elasticity. When the baffle 236 is closed, it can drive the locking rod 238 to squeeze the locking plate 239 and apply elastic force to it. After the baffle 236 is closed, the locking rod 238 enters the locking groove. The rebound of the locking plate 239 can make the locking groove and the locking rod 238 engage and limit the baffle 236. When it is necessary to open the baffle 236, the locking plate 239 is pushed and elastic force is applied to the locking plate 239. At this time, the locking plate 239 drives the locking groove and the locking rod 238 to separate and release the limitation on the baffle 236. The baffle 236 is opened by the force of the rotation of the torsion spring 237. Then the locking plate 239 is released, and the locking plate 239 can return to its original position by its own elastic force for the next use.

[0047] When in use, when a fully loaded truck is traveling on a steep slope and the descent control function needs to be activated, the retarder 11 first starts working. The gear 12 transmits the torque and speed of the vehicle's transmission system to the rotor shaft of the retarder 11, driving the rotor impeller to rotate at high speed. The oil tank 13 supplies fluid to the working chamber of the retarder 11 to ensure timely braking response. At the same time, the retarder 11 converts the gravitational potential energy of the vehicle when going downhill into heat energy generated by oil friction and impact, preventing loss of vehicle speed and ensuring driving safety.

[0048] The vibration generated during the truck's movement causes the movable rod 213 to move up and down repeatedly. The counterweight 232 at the top of the movable rod 213 enhances its sensitivity to vibration, enabling the movable rod 213 to respond quickly to the vibration force. When the movable rod 213 moves, it compresses the second spring 231 at the bottom. The second spring 231 undergoes elastic deformation and stores elastic potential energy. Subsequently, it pushes the movable rod 213 back to its original position through rebound. The positioning plate 228 provides stable support for the movable rod 213, preventing it from shifting and ensuring smooth reciprocating movement of the movable rod 213.

[0049] When the movable rod 213 moves, it drives the bottom guide frame 227 to move synchronously. The guide frame 227 presses the guide strip at one end of the connecting rod 226 through the internal guide groove, which drives the connecting rod 226 and the pressing column 222 on one side to move. When the pressing column 222 moves, it presses the first spring 223, and at the same time drives the pressing strip 225 to slide in the pressing groove 224 of the rotating sleeve 221. The pressing strip 225 presses the inner wall of the pressing groove 224, which drives the rotating sleeve 221 to rotate. The rotating sleeve 221 drives the drive housing 212 to rotate synchronously, realizing power transmission and providing driving force for the rotation of the magnetic rod 211.

[0050] The first spring 223 rebounds and drives the extrusion column 222 to reset. The extrusion column 222 drives the extrusion strip 225 to extrude the extrusion groove 224 again. The reciprocating cycle makes the rotating sleeve 221 rotate continuously. The drive housing 212 extrudes the locking block at one end of the magnetic rod 211 through the slot, driving the magnetic rod 211 to rotate in the oil tank 13. The magnetic rod 211 uses its own magnetism and the adsorption groove on its surface to efficiently capture small metal impurities in the oil caused by component wear, preventing impurities from re-entering the retarder 11 with the oil circulation and reducing the risk of component wear.

[0051] When the movable rod 213 moves, it also drives the piston rod 233 to extend and retract axially within the positioning sleeve 234 through the hinge point. The return spring on one side of the piston rod 233 helps to buffer the impact force of the movable rod 213's movement, further ensuring the stability of the movable rod 213's movement, ensuring the rotation speed and stability of the magnetic rod 211, improving the impurity adsorption efficiency, and maintaining the oil flow characteristics and pressure stability.

[0052] After the descent operation is completed, the retarder 11 stops working, and the oil that has absorbed heat and heated up in the working chamber flows back to the oil storage tank 13 for temporary storage. The magnetic rod 211 continues to adsorb residual metal impurities in the oil. When cleaning the magnetic rod 211, the locking plate 239 is moved, and the locking plate 239 causes the locking groove to separate from the locking rod 238, releasing the limit on the baffle 236. The torsion spring 237 rebounds and causes the baffle 236 to open, allowing the magnetic rod 211 to be directly removed for cleaning. After cleaning, the magnetic rod 211 is reset, the baffle 236 is closed, and the locking rod 238 and the locking plate 239 engage and limit the movement, ensuring that the magnetic rod 211 works stably in subsequent use.

[0053] In summary, by installing a magnetic rod 211 inside the oil reservoir 13, small metal residues generated in the oil circulation system can be captured by magnetic adsorption, preventing them from re-entering the retarder 11 with the oil circulation, reducing the risk of wear on the internal components of the retarder 11 caused by metal impurities, maintaining the oil flow characteristics and pressure stability, and extending the service life of the retarder 11 and the oil circulation system.

[0054] When the vibration generated by the car is running, the magnetic rod 211 can rotate. In the rotating state, various parts of the surface of the magnetic rod 211 continuously come into dynamic contact with the oil in different areas as it rotates. The effective area of ​​the magnetic rod 211 surface participating in adsorption increases, which can more fully capture the fine metal impurities suspended and flowing in the oil and improve the impurity adsorption efficiency.

[0055] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A steep slope descent device for a fully loaded transport truck, comprising, characterized in that, The slow descent assembly (1) includes a retarder (11), a gear (12) is fixed on one side of the retarder (11), and an oil tank (13) is fixed on the other side of the retarder (11). The adsorption assembly (2) is disposed on the oil storage tank (13) and includes an adsorption element (21). The adsorption element (21) includes a magnetic rod (211). The magnetic rod (211) is located inside the oil storage tank (13). A drive housing (212) is provided at one end of the magnetic rod (211). The drive housing (212) is rotatably connected to one side of the oil storage tank (13). A movable rod (213) is provided above the drive housing (212).

2. The steep slope descent device for a fully loaded transport truck according to claim 1, characterized in that, The adsorption assembly (2) further includes a rotating component (22), which includes a rotating sleeve (221). The rotating sleeve (221) is fixed to one side of the drive housing (212), and a squeezing column (222) is movably connected to one side of the rotating sleeve (221).

3. A steep slope descent device for a fully loaded transport truck according to claim 2, characterized in that, A first spring (223) is fixed on one side of the extrusion column (222). One end of the first spring (223) is rotatably connected to the drive housing (212). An extrusion groove (224) is opened in the rotating sleeve (221). An extrusion strip (225) is slidably connected in the extrusion groove (224). The extrusion strip (225) is fixed to one side of the extrusion column (222).

4. A steep slope descent device for a fully loaded transport truck according to claim 3, characterized in that, A connecting rod (226) is fixed on one side of the extrusion column (222). A guide frame (227) is movably connected to the outside of the connecting rod (226). The guide frame (227) is fixed to the bottom of the movable rod (213). A positioning plate (228) is movably connected to the outside of the movable rod (213). The positioning plate (228) is fixed to one side of the oil storage tank (13).

5. A steep slope descent device for a fully loaded transport truck according to claim 4, characterized in that, The adsorption assembly (2) also includes a movable part (23), which includes a second spring (231). One end of the second spring (231) is fixed to the bottom of the movable rod (213), and the other end of the second spring (231) is fixed to the top of the positioning plate (228). A counterweight (232) is fixed to the top of the movable rod (213).

6. A steep slope descent device for a fully loaded transport truck according to claim 5, characterized in that, A piston rod (233) is hinged to one side of the movable rod (213), and a positioning sleeve (234) is movably connected to the outside of the piston rod (233). The positioning sleeve (234) is hinged to one side of the oil tank (13).

7. A steep slope descent device for a fully loaded transport truck according to claim 6, characterized in that, A protective sleeve (235) is fixed on one side of the oil storage tank (13), and a baffle (236) is hinged on one side of the protective sleeve (235). The baffle (236) is located at one end of the magnetic rod (211), and a torsion spring (237) is fixed on one side of the baffle (236). One end of the torsion spring (237) is fixed to the top of the protective sleeve (235).

8. A steep slope descent device for a fully loaded transport truck according to claim 7, characterized in that, A locking rod (238) is fixed on one side of the protective sleeve (235), and a locking plate (239) is sleeved on the outside of the locking rod (238). The locking plate (239) is fixed to one side of the oil storage tank (13).

Images