Pull-type vehicle-mounted loading and unloading platform and method for heavy-load material transportation

Abstract

The invention relates to the technical field of transportation equipment, in particular to a pull-type vehicle-mounted loading and unloading platform and method for heavy-load material transportation, the pull-type vehicle-mounted loading and unloading platform comprises a convenient transportation device, a vehicle-mounted loading and unloading platform and a ground bracket, the convenient transportation device is connected with a vehicle, and the convenient transportation device is specifically a steel structure frame; a plurality of rollers are rotationally connected to the steel structure frame, the axes of the rollers are parallel to the axes of the axles, a vehicle-mounted loading and unloading platform is connected to the rear portion of the vehicle, a ground bracket is placed on the convenient transportation device, a plurality of guide rollers are rotationally connected to the top of the ground bracket, and the axes of the guide rollers are parallel to the axes of the rollers. According to the scheme, the vehicle-mounted loading and unloading platform can load additional objects, the object loading capacity of the device is increased, and due to the fact that the vehicle-mounted loading and unloading platform is connected with the rear portion of the vehicle, the vehicle-mounted loading and unloading platform can synchronously move along with the vehicle, and the object transportation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of transportation equipment, and in particular to a towing vehicle-mounted loading and unloading platform and method for transporting heavy-load materials. Background Art

[0002] A truck-mounted loading and unloading platform is a multifunctional platform specially designed for loading and unloading goods. This platform is usually installed on the rear of a truck, van or other motor vehicle, and can also be integrated into a container truck. The main features are: Adjustable height: The height of the platform can be adjusted by a hydraulic system or mechanical structure to adapt to different loading and unloading height requirements. Convenience: The truck-mounted loading and unloading platform makes the process of loading and unloading goods more convenient and efficient, especially in occasions where frequent loading and unloading of goods is required. Versatility: In addition to loading and unloading goods, it can also be used for personnel entry and exit, especially in places such as construction sites and logistics centers where frequent boarding and unloading are required. Safety: The platform is usually equipped with safety railings, non-slip surfaces and other safety devices to ensure safety during loading and unloading.

[0003] However, the prior art still has some shortcomings. For example, the patent number is CN97215403.5, which is a lifting device, especially a vehicle-mounted loading and unloading platform mainly used on automobiles. It includes a hydraulic power system, which is characterized in that the hydraulic power system is connected to the oil cylinder, the bottom end of the oil cylinder is hinged to the fixed frame, the fixed frame is matched with the lifting frame, the outer end of the piston rod matched with the oil cylinder is connected to the lifting frame, and the lifting frame is connected to the platform. The device is directly installed at the rear of the vehicle, which makes it impossible to transport heavy objects, so the applicability of the device is extremely poor. Summary of the invention

[0004] The present invention provides a towing vehicle-mounted loading and unloading platform and method for transporting heavy-loaded materials, which are used to solve the problem raised by the background technology.

[0005] In order to achieve the above-mentioned invention objectives, the present invention provides the following technical solutions: a towing type vehicle-mounted loading and unloading platform for transporting heavy-loaded materials, comprising: a convenient transport device, a vehicle-mounted loading and unloading platform and a ground bracket, wherein the convenient transport device is connected to the vehicle, and the convenient transport device is specifically a steel frame, on which a plurality of rollers are rotatably connected, and the axis of the rollers is arranged parallel to the axis of the axle, the rear of the vehicle is connected to the vehicle-mounted loading and unloading platform, a ground bracket is placed on the convenient transport device, and a plurality of guide rollers are rotatably connected to the top of the ground bracket, and the axis of the guide rollers is arranged parallel to the axis of the rollers.

[0006] The vehicle loading and unloading platform includes: a traction device, one end of which is rotatably connected to the rear of the vehicle, and the other end of the traction device is connected to the front of the trailer frame. A power control system is provided at the bottom of the trailer frame, a front transition plate is connected to the top of the trailer frame, the front transition plate is arranged adjacent to the convenient transport device, the top of the trailer frame is connected to the bottom of the lifting system, and a rolling platform is connected to the lifting system.

[0007] The traction device includes: a traction ring, which is sleeved on the hook at the rear of the vehicle, the traction ring is plugged into and matched with the front socket of the traction device frame through a screw rod, a nut is threadedly connected on the screw rod to fix the traction ring and the traction device frame, a jack is installed on the traction device frame, the rear of the traction device frame is plugged into and matched with the pin hole on the traction support through a pin, the traction support is longitudinally provided with a plurality of pin holes, and the traction support is connected to the front of the trailer frame.

[0008] The front transition plate includes: a front transition plate upper frame and a transition plate cylinder. Two connecting ears 2 are installed on the top of the trailer frame. Each connecting ear 2 is hinged to the bottom end of a transition plate cylinder. The transition plate cylinder is connected to the hydraulic power system through a pipeline. The top of the transition plate cylinder is hinged to the connecting ear 1. The connecting ear 1 is connected to the bottom of the upper frame of the front transition plate. The bottom of the upper frame of the front transition plate is connected to the top of the trailer frame through a scissor fork assembly. A plurality of lifting rings are installed on the top of the upper frame of the front transition plate. A plurality of clamps are installed on the upper frame of the front transition plate. A second roller is rotatably connected to the clamp. The second roller is arranged parallel to the axis of the roller.

[0009] The scissor fork assembly includes: a slot one and a slot two, two slots one are connected in parallel to the top of the trailer frame, the slot one is slidably connected to the walking roller two, the walking roller two is rotatably connected to the bottom of the scissor fork plate, two slots two are connected in parallel to the bottom of the upper frame of the front transition plate, the slot two is slidably connected to the walking roller, the walking roller is rotatably connected to the top of the scissor fork two, the middle two of each scissor fork plate is rotatably connected to the middle of a scissor fork plate, and a scissor fork mechanism is formed, and the scissor fork plate two is connected to the scissor fork plate two in another scissor fork mechanism through a connecting cross bar.

[0010] The trailer frame includes: a body frame, which is specifically a U-shaped steel structure, a power control system is installed at the bottom of the body frame, an open end of the body frame is arranged away from the vehicle, the upper part of the body frame is connected with a first slot, a second slot, and a gantry frame, a disconnected axle assembly is connected to the bottom of the body frame, a group of hydraulic legs are respectively connected to the front and rear ends of the body frame, the hydraulic legs are connected to the hydraulic control system through a second pipeline, and a traction support is connected to the front of the body frame.

[0011] The disconnected axle assembly includes: a rotating bearing assembly, an end of a rotating bearing assembly is respectively installed on both sides of the bottom of the body frame, the other end of the rotating bearing assembly is rotatably connected to the end of the axle support beam, a rotary lock is installed on the axle support beam, and the two ends of the rotary lock are respectively connected to the rolling platform and the body frame through a double nut, a connecting support frame is installed on the axle support beam, the bottom of the connecting support frame is hinged to one end of the suspension assembly, a copper wire shock absorber is connected between the suspension assembly and the axle support beam, the suspension assembly is connected to one side of the air path control system through an air duct, the air path control system is installed at the bottom of the body frame, and the other side of the air path control system is connected to the compressor of the vehicle through air duct 2, a tire assembly is rotatably connected to the suspension assembly, a wheel cover is installed on the axle support beam, the wheel cover is arranged above the tire assembly, and an air suspension is connected between the other end of the suspension assembly and the axle support beam.

[0012] The rotating bearing assembly includes: an axle support, an axle support is installed on each side of the bottom of the vehicle body frame, a mounting plate is fixed on each upper and lower side of the axle support, a circular hole is penetrated through the mounting plate, each mounting plate is rotatably matched with an anti-wear pad, the two anti-wear pads are respectively arranged on the upper and lower sides of the steering column, a circular hole two is penetrated through the anti-wear pad, a rotating bearing is inserted into the circular hole and the circular hole two, the bottom end of the rotating bearing is connected to the bearing end cover, the top end of the rotating bearing is rotatably matched with the upper side of an anti-wear pad, and the side of the steering column is connected to the end of the axle support beam.

[0013] The rolling platform includes: a rolling platform deck, a rolling platform frame is connected to each side of the rolling platform deck, the rolling platform frame is connected to the bottom end of two rolling platform guide rails by bolts, the rolling platform guide rails are connected to the output end of the lifting system, the gantry frame is slidingly connected to the platform guide rails, two hydraulic motors are installed at the bottom of the rolling platform deck, the two hydraulic motors are symmetrically arranged at an oblique angle, each hydraulic motor is connected to the hydraulic control system through pipeline three, the hydraulic control system is included in the power control system, the output end of the hydraulic motor is connected to a sprocket, the sprocket is connected to another sprocket through a sprocket chain, the other sprocket is rotatably connected to the rolling platform deck, the sprocket chain is arranged around the rolling platform deck, the moving direction of the sprocket chain is perpendicular to the axis of roller two, a plurality of lifting rings are installed on the rolling platform deck, a plurality of clamps two are rotatably installed on the rolling platform deck, the clamps two are rotatably connected to a plurality of rollers three, and roller three is arranged parallel to the axis of roller two.

[0014] A loading and unloading method of a towing type vehicle-mounted loading and unloading platform for transporting heavy-loaded materials, applicable to any of the above-mentioned towing type vehicle-mounted loading and unloading platforms for transporting heavy-loaded materials, comprising the following steps:

[0015] Based on the hydraulic power system, the hydraulic oil is delivered to or released to the transition plate cylinder through the pipeline to adjust the height of the front transition plate to be equal to the height of the convenient transport device;

[0016] Based on the lifting system, the rolling platform is controlled to move to the ground, and then the objects are moved to the rolling platform through the ground bracket;

[0017] After moving the items on the ground bracket to the rolling platform, start the lifting system again and adjust the height of the rolling platform to be equal to that of the front transition plate;

[0018] Guided by roller three, roller two and roller three, the articles are sequentially loaded on the convenient transport device, the front transition plate and the rolling platform, and the articles are transported;

[0019] After the transportation is completed, the articles are guided by the roller, the second roller and the third roller again, and are unloaded from the convenient transport device, the front transition plate and the rolling platform in sequence.

[0020] The beneficial effects of the present invention are as follows:

[0021] In the scheme of the present invention: the vehicle loading and unloading platform can load additional articles, increasing the loading capacity of the device for articles. Since the vehicle loading and unloading platform is connected to the rear of the vehicle, the vehicle loading and unloading platform can move synchronously with the vehicle, thereby improving the efficiency of article transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0023] Figure 2 A top view of the rolling platform of the present invention;

[0024] Figure 3 It is a schematic diagram of the trailer frame structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the installation position of the jack of the present invention;

[0026] Figure 5 A top view of the traction device frame of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the front transition plate of the present invention;

[0028] Figure 7 It is a schematic diagram of the installation position of the connecting cross bar of the present invention;

[0029] Figure 8 It is a schematic diagram of the installation position of the gantry frame of the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the disconnectable axle assembly of the present invention;

[0031] Fig.10It is a schematic diagram of the installation position of the copper wire shock absorber and the suspension assembly of the present invention;

[0032] Fig.11 It is a schematic diagram of the axle support structure of the present invention;

[0033] Fig.12 It is a schematic diagram of the installation position of the rolling platform guide rail of the present invention;

[0034] Fig.13 This is a schematic diagram of the installation position of the lifting cylinder assembly of the present invention.

[0035] Among them: convenient transport device 1, vehicle loading and unloading platform 2, traction device 201, traction ring 2011, traction device frame 2012, latch 2013, jack 2014, traction support 2015, power control system 202, front transition plate 203, transition plate cylinder 2031, scissor fork assembly 2032, slot 1 20321, slot 2 20322, connecting cross bar 20323, front transition plate upper frame 2033, connecting ear 1 20331, connecting ear 2 20332, roller 2 20333, clamp 20334, lifting ring 20335, roller 3 20336, trailer frame 204, air circuit control system 2041, body frame 2042, disconnected axle assembly 2043, rotating bearing assembly 20431, axle support 20 4311, rotating bearing 204312, anti-wear pad 204313, bearing end cover 204314, connecting support frame 20432, axle support beam 20433, wheel cover 20434, rotary lock 20435, tire assembly 20436, air suspension 20437, copper wire shock absorber 20438, suspension assembly 20439, gantry frame 2044, hydraulic support leg 2045, rolling platform 205, rolling platform guide rail 2051, rolling platform frame 2052, hydraulic motor 2053, sprocket chain 2054, lifting ring 20335, rolling platform deck 2055, lifting system 206, bearing assembly 2061, lifting sprocket 2062, lifting bracket 2063, lifting cylinder assembly 2064, oil pipe assembly 2065, ground bracket 3. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0037] Example 1: Reference Figure 1-Figure 13A traction-type vehicle-mounted loading and unloading platform for transporting heavy-loaded materials comprises: a convenient transport device 1, a vehicle-mounted loading and unloading platform 2 and a ground bracket 3. The convenient transport device 1 is connected to the vehicle. The convenient transport device 1 is specifically a steel frame, on which a plurality of rollers are rotatably connected, and the axis of the rollers is arranged parallel to the axis of the axle. The rear part of the vehicle is connected to the vehicle-mounted loading and unloading platform 2, and a ground bracket 3 is placed on the convenient transport device 1. A plurality of guide rollers are rotatably connected to the top of the ground bracket 3, and the axis of the guide rollers is arranged parallel to the axis of the rollers.

[0038] The principles and beneficial effects of the above scheme are:

[0039] The convenient transport device 1 is installed on a vehicle, and a loading and unloading platform 2 is connected to the rear of the vehicle. When it is necessary to place items, the operator can place the ground bracket 3 on the ground, and place the items on the ground bracket 3 for temporary placement through other transport devices. The ground bracket 3 can keep a certain distance between the items and the ground. When the items are waterproof, the items can be prevented from directly contacting the water on the ground. When it is necessary to start loading the items onto the vehicle, the operator can push the items on the ground bracket 3, and the items are moved to the loading and unloading platform 2 on the vehicle under the action of the guide rollers. Then, the items are automatically loaded onto the convenient transport device 1 through the loading and unloading platform 2 on the vehicle, and the items are guided by the rollers on the convenient transport device. After the articles are moved into place on the vehicle 1, the articles are fixed. When the articles on the convenient transport device 1 are full, the vehicle loading and unloading platform 2 can be loaded with additional articles, thereby increasing the loading capacity of the device for articles. Since the vehicle loading and unloading platform 2 is connected to the rear of the vehicle, the vehicle loading and unloading platform 2 can be moved synchronously with the vehicle, thereby improving the efficiency of article transportation. After finishing loading the articles, the operator recycles the ground bracket 3 to the vehicle or the vehicle loading and unloading platform 2. The ground bracket 3 is provided to provide convenience for temporary storage of articles again when unloading the articles. The operator can first unload the articles on the vehicle loading and unloading platform 2, and then unload the articles on the convenient transport device 1 to the vehicle loading and unloading platform 2, and finally complete the unloading of all articles.

[0040] Example 2: Reference Figure 1-Figure 13 The vehicle loading and unloading platform 2 includes: a traction device 201, one end of the traction device 201 is rotatably connected to the rear of the vehicle, and the other end of the traction device 201 is connected to the front of the trailer frame 204. A power control system 202 is provided at the bottom of the trailer frame 204, and a front transition plate 203 is connected to the top of the trailer frame 204. The front transition plate 203 is arranged adjacent to the convenient transport device 1, and the top of the trailer frame 204 is connected to the bottom of the lifting system 206, and the lifting system 206 is connected to a rolling platform 205.

[0041] The principles and beneficial effects of the above scheme are:

[0042] One end of the traction device 201 is rotatably connected to the rear of the vehicle, and the other end of the traction device 201 is connected to the front of the trailer frame 204. During the transportation of items, one end of the traction device 201 is rotatably connected to the rear of the vehicle to facilitate the on-board loading and unloading platform 2 to turn while moving. A front transition plate 203 is connected to the top of the trailer frame 204. Due to different vehicle models, the height of the convenient transportation device 1 installed on the top of the vehicle is different. Therefore, when loading or unloading items onto the convenient transportation device 1, the height of the front transition plate 203 can be adjusted to make its height the same as that of the convenient transportation device 1, thereby facilitating the movement of items on the convenient transportation device 1 onto the front transition plate 203, or moving items on the front transition plate 203 onto the convenient transportation device 1, greatly improving the practicality of the device; the height of the rolling platform 205 can be adjusted by the lifting system 206. When it is necessary to load items, the rolling platform 205 is moved to the same height as the front transition plate 203 through the lifting system 206. When the height of the rolling platform 205 is equal to that of the ground bracket 3, the objects are moved from the ground bracket 3 to the rolling platform 205, and then the lifting system 206 is started to adjust the height of the rolling platform 205 to be equal to that of the front transition plate 203, and then the objects are loaded; when unloading the objects, the height of the rolling platform 205 is made equal to that of the front transition plate 203 through the lifting system 206, and the objects on the front transition plate 203 are moved to the rolling platform 205, and then the lifting system 206 is started again to adjust its height to be equal to the height of the ground bracket 3 to complete the unloading of the objects. Through the cooperation between the rolling platform 205 and the rolling platform 205, not only the setting of external lifting equipment can be reduced, the practicality of the device when working in the field can be fully improved, the investment of personnel working time can be reduced, and the possibility of danger of the device when working can be reduced. The rolling platform 205 itself can also place objects, and when placing them, only simple parts such as ropes or bolts need to be used for fixing, which greatly increases the device's ability to load objects.

[0043] Example 3: Reference Figure 1-Figure 13 The traction device 201 includes: a traction ring 2011, which is mounted on the hook at the rear of the vehicle. The traction ring 2011 is plugged into and matched with the front socket of the traction device frame 2012 through a screw rod. A nut is threadedly connected to the screw rod to fix the traction ring 2011 and the traction device frame 2012. A jack 2014 is installed on the traction device frame 2012. The rear of the traction device frame 2012 is plugged into and matched with the pin hole on the traction support 2015 through a pin 2013. The traction support 2015 has multiple pin holes longitudinally opened. The traction support 2015 is connected to the front of the trailer frame 204.

[0044] The principles and beneficial effects of the above scheme are:

[0045] The traction ring 2011 cooperates with the coupler set, so that the traction force can be transmitted to the trailer frame 204 through the traction device frame 2012 during the process of the vehicle moving forward, backward or turning. The traction device frame 2012 is convenient for dispersing the force applied by the hook on the traction ring 2011. Since the rear part of the traction device frame 2012 is connected to the traction support 2015 by the pin 2013, the length of the traction device frame 2012 can be changed according to actual conditions to adapt to the traction force transmitted by vehicles with different traction forces and the minimum turning radius between different vehicles and different trailer frames 204. In addition, the pin 2013 and the traction support 2015 can be used to adjust the height of the traction ring 2011 from the ground, so that the traction ring 2011 can be used to cooperate with the traction hook height of different transport vehicles. The function of the jack 2014 is to facilitate the release and installation of the traction ring 2011 and the coupler by adjusting the extension height of the jack before the vehicle loading and unloading platform 2 is ready for driving or loading and unloading operations.

[0046] Example 4: Reference Figure 1-Figure 13 The front transition plate 203 includes: a front transition plate upper frame 2033 and a transition plate cylinder 2031. Two connecting ears 20332 are installed on the top of the trailer frame 204. Each connecting ear 20332 is hinged to the bottom end of a transition plate cylinder 2031. The transition plate cylinder 2031 is connected to the hydraulic power system through a pipeline. The top of the transition plate cylinder 2031 is hinged to the connecting ear 1 20331. The connecting ear 1 20331 is connected to the bottom of the front transition plate upper frame 2033. The bottom of the front transition plate upper frame 2033 is connected to the top of the trailer frame 204 through a scissor fork assembly 2032. A plurality of lifting rings are installed on the top of the front transition plate upper frame 2033. A plurality of clamps 20334 are installed on the front transition plate upper frame 2033. The clamps 20334 are rotatably connected to roller 20333, and the roller 20333 is arranged parallel to the roller axis.

[0047] The principles and beneficial effects of the above scheme are:

[0048] When it is necessary to raise the upper frame 2033 of the front transition plate, the transition plate cylinder 2031 is started, and the scissor fork assembly 2032 moves upward to drive the upper frame 2033 of the front transition plate to rise. When it is necessary to lower the upper frame 2033 of the front transition plate, the transition plate cylinder 2031 is depressurized, and the scissor fork assembly 2032 moves downward to drive the upper frame 2033 of the front transition plate to drop. Based on practical considerations, different models of trailer frames 204 require different connection methods when the upper frame 2033 of the front transition plate needs to be installed on the corresponding trailer frames 204. It can be seen from the corresponding drawings that the present application adopts the connection ear 20332, which can be connected according to the actual situation. 0332 is welded to the trailer frame 204, or a hole is penetrated through the connecting ear 20332, and the two are connected by means of a pin or a threaded nut. In addition, different connection methods can also make the front transition plate upper frame 2033 adapt to work under different load conditions, which not only improves the adaptability of the device during operation, but also greatly improves the safety of the device during operation. When the device is used in the field, it is easy to repair and operate, and the maintenance efficiency is higher. The setting of the connecting ear 1 20331 has the same technical effect as the above-mentioned scheme; the setting of the roller 20333 improves the efficiency of transferring items on the front transition plate upper frame 2033.

[0049] Example 5: Reference Figure 1-Figure 13 The scissor fork assembly 2032 includes: a slot 1 20321 and a slot 2 20322. The top of the trailer frame 204 is connected with two slots 1 20321 in parallel. The slot 1 20321 is slidably connected to the walking roller 2, and the walking roller 2 is rotatably connected to the bottom of the scissor plate. The bottom of the front transition plate upper frame 2033 is connected with two slots 20322 in parallel. The slot 20322 is slidably connected to the walking roller, and the walking roller is rotatably connected to the top of the scissor plate 2. The middle two of each scissor plate is rotatably connected to the middle of a scissor plate to form a scissor mechanism. The scissor plate 2 is connected to the scissor plate 2 in another scissor mechanism through the connecting cross bar 20323.

[0050] The principles and beneficial effects of the above scheme are:

[0051] The card slot 1 20321 and the card slot 2 20322 provide sliding guides for the walking roller 2 and the walking roller respectively. Considering the working environment, the device needs to work in the field frequently. Therefore, in order to ensure that the device is not affected by wind, rain, dust and mud and works normally, the structure setting is simplified. When the walking roller 2 and the walking roller are rolling, the card slot 1 20321 and the card slot 2 20322 are set. At the same time, when water or mud is accumulated inside the two, the dirt can be discharged by the rolling of the walking roller. When the device fails, the maintenance personnel observe at the end of the card slot mechanism, quickly determine the fault point and the cause of the fault, and then make repairs. The one-step card slot mechanism and the walking roller mechanism are simple to cooperate with, and after the cause of the fault is determined, repairs can be quickly carried out or the mechanism can be replaced according to the actual situation; when this scheme performs the lifting action, since there is a connecting cross bar 20323 connected between the two scissor-type mechanisms, when the scissor plate and the scissor plate 2 perform the lifting action, the connecting cross bar 20323 can provide higher stability for the mechanism. When the device transports items, it needs to adapt to various road conditions. The setting of the connecting cross bar 20323 can also ensure the stability between the two scissor-type mechanisms, prevent the two from offset or vibration, and further prevent the loosening of parts in the mechanism, thereby improving the safety of transportation.

[0052] Example 6: Reference Figure 1-Figure 13 The trailer frame 204 includes: a body frame 2042, which is specifically a U-shaped steel structure. A power control system 202 is installed at the bottom of the body frame 2042. The open end of the body frame 2042 is arranged away from the vehicle. The upper part of the body frame 2042 is connected with a slot 1 20321, a slot 20322, and a gantry frame 2044. The bottom of the body frame 2042 is connected with a disconnect axle assembly 2043. The front and rear ends of the body frame 2042 are respectively connected with a group of hydraulic legs 2045, and the hydraulic legs 2045 are connected to the hydraulic control system through a pipeline 2. The front part of the body frame 2042 is connected with a traction support 2015.

[0053] The principles and beneficial effects of the above scheme are:

[0054] In order to reduce the overall weight of the device, the body frame 2042 is configured to be U-shaped, and a disconnected axle assembly 2043 is connected to the bottom of the body frame 2042 to facilitate the movement of the device with the vehicle. The front and rear ends of the body frame 2042 are each connected to a group of hydraulic legs 2045, and each group of hydraulic legs 2045 is provided with two hydraulic legs 2045, whose function is to use the output end of the hydraulic legs 2045 to contact the ground before loading and unloading items, thereby increasing the stability of the body frame 2042 and improving the safety of the device when in use.

[0055] Example 7: Reference Figure 1-Figure 13 The disconnected axle assembly 2043 includes: a rotating bearing assembly 20431, an end of a rotating bearing assembly 20431 is installed on each side of the bottom of the vehicle body frame 2042, the other end of the rotating bearing assembly 20431 is rotatably connected to the end of the axle support beam 20433, a rotary lock 20435 is installed on the axle support beam 20433, and the two ends of the rotary lock 20435 are respectively connected to the rolling platform 205 and the vehicle body frame 2042 through a double nut, and a connecting support frame 20432 is installed on the axle support beam 20433, and the bottom of the connecting support frame 20432 is hinged to one end of the suspension assembly 20439, and the suspension assembly 20439 A copper wire shock absorber 20438 is connected between the axle support beam 20433, the suspension component 20439 is connected to one side of the air control system 2041 through an air duct, the air control system 2041 is installed at the bottom of the vehicle body frame 2042, and the other side of the air control system 2041 is connected to the compressor of the vehicle through air duct 2, the suspension component 20439 is rotatably connected to the tire assembly 20436, the axle support beam 20433 is equipped with a wheel cover 20434, and the wheel cover 20434 is arranged above the tire assembly 20436, and an air suspension 20437 is connected between the other end of the suspension component 20439 and the axle support beam 20433.

[0056] The principles and beneficial effects of the above scheme are:

[0057] In this scheme, each axle support beam 20433 is installed with a rotary lock 20435. When the device is in the driving state, the two ends of the rotary lock 20435 are connected to the rolling platform 205 and the vehicle frame 2042 through a double nut respectively, thereby reducing the shaking of the disconnected axle assembly 2043 during driving and increasing driving stability. It can be further known that when the device completes the transportation of items and loads and unloads them, the double nuts can be removed to achieve the connection between the rolling platform 205 and the vehicle frame 2042 and the axle support beam 20433. In this state, the axle support beam 20433 can be rotated outward relative to the vehicle frame 2042 so that the other end can rotate around the rotating bearing assembly 20431, thereby increasing the angle between the two axle support beams 20433, increasing the contact area of ​​the vehicle frame 2042 with the ground when loading and unloading items, and increasing the overall stability of the vehicle frame 2042 together with the hydraulic support legs 2045. Since the air suspension 20437 and the copper wire shock absorber 20438 are used to absorb the impact load of the tire assembly 20436 during driving, they are the main shock absorbing mechanisms. Therefore, after long-term use, the mechanisms need to be inspected and maintained in time. Therefore, when the rotary lock 20435 is in the unlocked state, the two axle support beams 20433 are moved outward, which increases the convenience of inspecting and maintaining the tire assembly 20436, the air suspension 20437, the copper wire shock absorber 20438 and the suspension assembly 20439; the air path control system 2041 transports the air in the compressor to the air duct through the air duct 2, and then transports it to the suspension assembly 20439 through the air duct. Therefore, the suspension assembly 20439 can be inflated before the device starts to drive, thereby improving the device's anti-seismic and anti-impact effects. After the driving ends, the suspension assembly 20439 is deflated to reduce the height of the vehicle body frame 2042 and improve the convenience of loading items.

[0058] Example 8: Reference Figure 1-Figure 13 The rotating bearing assembly 20431 includes: an axle support 204311, an axle support 204311 is installed on each side of the bottom of the vehicle body frame 2042, a mounting plate is fixed on the upper and lower sides of the axle support 204311, a circular hole is penetrated on the mounting plate, each mounting plate is rotatably matched with an anti-wear pad 204313, two anti-wear pads 204313 are respectively arranged on the upper and lower sides of the steering column, a circular hole two is penetrated on the anti-wear pad 204313, a rotating bearing 204312 is inserted in the circular hole and the circular hole two, the bottom end of the rotating bearing 204312 is connected to the bearing end cover 204314, the top of the rotating bearing 204312 is rotatably matched with the upper side of an anti-wear pad 204313, and the side of the steering column is connected to the end of the axle support beam 20433.

[0059] The principles and beneficial effects of the above scheme are:

[0060] During the rotation of the axle support beam 20433, the axle support 204311 provides rotation guidance for the steering column at its end, and the anti-wear pad 204313 can prevent the steering column from directly rotating and rubbing against the mounting plate. The anti-wear pad 204313 can adjust the installation gap between the axle support 204311 and the axle support beam 20433, and can also cooperate with grease to increase the smoothness of the axle support beam 20433 during rotation and improve the anti-wear performance. The function of the bearing end cover 204314 is to prevent the rotating bearing 204312 from jumping during driving and increase the airtightness between components. A grease nozzle is provided on the steering column, which can provide grease to lubricate the rotating bearing 204312, avoid lubrication of the mechanism after disassembly, and improve the practicality of the components.

[0061] Example 9: Reference Figure 1-Figure 13 The rolling platform 205 includes: a rolling platform guide rail 2051, a rolling platform frame 2052, a hydraulic motor 2053, a sprocket chain 2054, a roller three 20336, a clamp two, a lifting ring two 20335 and a rolling platform deck 2055. A rolling platform frame 2052 is connected to each side of the rolling platform deck 2055. The rolling platform frame 2052 is connected to the bottom ends of the two rolling platform guide rails 2051 by bolts. The rolling platform guide rail 2051 is connected to the output end of the lifting system 206. The gantry frame 2044 is slidably connected to the platform guide rail 2051. Two hydraulic motors 2053 are installed at the bottom of the rolling platform deck 2055. The two hydraulic motors 2053 are arranged symmetrically at an oblique angle. Each hydraulic motor 2053 is connected to the bottom of the rolling platform deck 2055. The pressure motors 2053 are connected to the hydraulic control system through pipeline three. The hydraulic control system is included in the power control system 202. The output end of the hydraulic motor 2053 is connected to a sprocket. The sprocket is connected to another sprocket through a sprocket chain 2054. The other sprocket is rotatably connected to the rolling platform deck 2055. The sprocket chain 2054 is arranged around the rolling platform deck 2055. The moving direction of the sprocket chain 2054 is perpendicular to the axis of roller two 20333. A plurality of lifting rings 20335 are installed on the rolling platform deck 2055. A plurality of clamps two are rotatably installed on the rolling platform deck 2055. The clamps two are rotatably connected to a plurality of roller three 20336. Roller three 20336 is arranged parallel to the axis of roller two 20333.

[0062] The principles and beneficial effects of the above scheme are:

[0063] A rolling platform frame 2052 is connected to each side of the rolling platform plank 2055. The rolling platform frame 2052 provides convenience for the installation of the rolling platform guide rail 2051. The rolling platform guide rail 2051 can be slidably connected to the gantry frame 2044. The rolling platform guide rail 2051 is powered by the lifting system 206 when it moves. Based on the accompanying drawings, it can be seen that a plurality of through grooves are provided on the rolling platform guide rail 2051, and a plurality of through grooves 2 are provided on the gantry frame 2044. The arrangement of the through grooves and the through grooves 2 not only reduces the weight of each of the two parts, but also, when the two through groove structures are staggered, the side of the rolling platform guide rail 2051 can be directly observed through the through grooves 2. The reason for such an arrangement is that the working state of the side of the rolling platform guide rail 2051 can be visually checked through the through grooves 2. When the rolling platform guide rail 2051 is rusted or damaged, it can be replaced. More importantly, the lubrication condition of the rolling platform guide rail 2051 can be observed through the through grooves 2. 1 and the gantry frame 2044 are slidably matched, so the lubrication of lubricating oil is a crucial reason to ensure the stable working state between the two parts. When the lubricating oil is missing, the lubricating oil can be directly and specifically supplemented through the corresponding through groove 2. Compared with the traditional addition of lubricating oil to the sliding parts after disassembly, the lubrication method of this scheme can not only lubricate the rolling platform guide rail 2051 in a targeted manner, but also prevent the occurrence of poor lubrication effect of adding lubricating oil at the end of the parts. In addition, the setting of the through groove structure avoids the accumulation of dirt between the two parts, reduces the difficulty of the device to handle the dirt of the parts, and further improves the service life of the parts; the function of the clamp 20334 on the frame 2033 of the front transition plate is the same as that of reducing the installation difficulty of the roller three 20336, so that the roller three 20336 can play a guiding role when the items are transported later. Similarly, the second lifting ring 20335 cooperates with the hook of the lifting equipment to facilitate the movement of the disassembled rolling platform deck 2055;Power equipment that works in the wild or in harsh environments for a long time is easily affected by dirt, causing damage. Therefore, two hydraulic motors 2053 are set on the rolling platform deck 2055 to adapt to the harsh external environment. The function of the sprocket chain 2054 driven by the hydraulic motor 2053 through the sprocket is to reduce the loss of personnel's physical energy when the items are moved. The sprocket chain 2054 cooperates with the roller three 20336 to further improve the efficiency of item transportation. When the items are transported, in order to give full play to the carrying capacity of the device , the rolling platform deck 2055 will also load the items. At this time, after the hydraulic motor 2053 is turned off, the sprocket chain 2054 is in a stationary state. The sprocket chain 2054 has a very strong friction force after contacting the items. Under this premise, the items can be initially fixed. At this time, the rolling platform deck 2055 is in the initial loading position, that is, the through groove and the second through groove are in a state of overlap. The setting of the through groove structure provides an installation position for the steel cable or other fixing mechanism used to fix the items, thereby realizing the fixation of the transported items. ;

[0064] Example 10: Reference Figure 1-Figure 13 A method for loading and unloading a towing vehicle loading and unloading platform for heavy-load material transportation, applicable to any of the above-mentioned towing vehicle loading and unloading platforms for heavy-load material transportation, comprises the following steps:

[0065] Based on the hydraulic power system, the hydraulic oil is delivered or released to the transition plate cylinder 2031 through the pipeline to adjust the height of the front transition plate 203 to be equal to the height of the portable transport device 1;

[0066] Based on the lifting system 206, the rolling platform 205 is controlled to move to the ground, and then the objects are moved to the rolling platform 205 through the ground bracket 3;

[0067] After the items on the ground bracket 3 are moved onto the rolling platform 205, the lifting system 206 is started again, and the height of the rolling platform 205 is adjusted to be equal to that of the front transition plate 203;

[0068] By means of the guide of roller three 20336, roller two 20333 and the rollers, the articles are sequentially loaded on the portable transport device 1, the front transition plate 203 and the rolling platform 205, and the articles are transported;

[0069] After the transportation is completed, the articles are again guided by the roller, the second roller 20333 and the third roller 20336, and are unloaded from the convenient transportation device 1, the front transition plate 203 and the rolling platform 205 in sequence.

[0070] The principles and beneficial effects of the above scheme are:

[0071] During the process of loading items, the rolling platform 205 completes height adjustment through the lifting system 206, with the aim of adjusting its position to be the same as the height of the front transition plate 203. In addition, the use of external lifting equipment is avoided during the height adjustment process. At the same time, based on the setting of the position of the lifting system 206 in the above scheme, the space inside the device is fully utilized. When the items can be lifted, the items can also be loaded and transported. Due to the differences between different vehicle models, a convenient transportation device 1 is installed. The height of the device itself is different from that of the front transition plate 203. By setting the height of the front transition plate 203 to be adjustable, the convenience of moving items is greatly increased, and the complexity of repeated adjustment and debugging of the device is avoided. On this basis, the cooperation of the rollers, roller two 20333 and roller three 20336 is convenient for providing guidance when loading or unloading items, which greatly reduces the labor input of personnel.

[0072] Example 11: Reference Figure 1-Figure 13 The lifting system 206 includes: a bearing assembly 2061, a lifting sprocket 2062, a lifting bracket 2063, a lifting cylinder assembly 2064 and an oil pipe assembly 2065. The two ends of the lifting bracket 2063 are respectively connected to a bearing assembly 2061 by a bolt. The bearing end of each bearing assembly 2061 is slidably matched with the side of the gantry frame 2044. The bottom of the lifting bracket 2063 is rotatably connected to two lifting sprockets 2062. The lifting sprocket 2062 is set between the two bearing assemblies 2061. The lifting sprocket 206 2 is meshed and connected with the lifting chain, the end of the lifting chain is connected to the vehicle body frame 2042 through a nut, the other end of the lifting chain is connected to the side of the rolling platform deck 2055 through a nut 2, the bottom of the lifting bracket 2063 is connected to the output end of the lifting cylinder assembly 2064, the middle of the lifting cylinder assembly 2064 is installed on the vehicle body frame 2042, the bottom of the lifting bracket 2063 is connected to the oil pipe assembly 2065, the end of the oil pipe assembly 2065 is connected to the hydraulic power system, and the other end of the oil pipe assembly 2065 is connected to the lifting cylinder assembly 2064.

[0073] The principles and beneficial effects of the above scheme are:

[0074] When the height of the rolling platform deck 2055 is adjusted, the movement of the lifting cylinder assembly 2064 drives the lifting bracket 2063 to rise and fall, and the lifting sprocket 2062 is rotated on the lifting bracket 2063, and the lifting sprocket 2062 is meshed with the lifting chain. Since one end of the lifting chain is connected to the vehicle frame 2042 through a nut, and the other end is connected to the side of the rolling platform deck 2055, the lifting chain can transmit the displacement of the lifting bracket 2063 to the rolling platform deck 2055, and at the same time The pressure exerted on the rolling platform deck 2055 can be distributed, and the meshing connection between the lifting chain and the lifting sprocket 2062 is more accurate, which allows for excellent stability during movement and the ability to adapt to harsh environments with high reliability. During the movement of the lifting bracket 2063, the sliding cooperation between the bearing assembly 2061 and the side of the gantry frame 2044 increases the stability of the mechanism movement, and fixing the oil pipe assembly 2065 on the lifting bracket 2063 reduces the difficulty of supplying hydraulic oil to the lifting cylinder assembly 2064.

[0075] Example 12: Reference Figure 1-Figure 13 The power control system 202 also includes: an electrical control system and a battery. The hydraulic power system, the electrical control system and the battery are all installed at the bottom of the vehicle frame 2042. One side of the electrical control system is electrically connected to the battery through a wire, and the other side of the electrical control system is electrically connected to the hydraulic power system through wire 2. The hydraulic power system is connected to the transition plate cylinder 2031, the hydraulic support leg 2045, the hydraulic motor 2053 and the lifting cylinder assembly 2064 through a pipeline, a pipeline 2, a pipeline 3 and an oil pipe assembly 2065, respectively.

[0076] The principles and beneficial effects of the above scheme are:

[0077] When the device is working, the electrical control system controls the hydraulic power system through wire 2. The hydraulic power system can implement the filling and unloading of hydraulic oil according to the electrical signal of the electrical control system. The integrated setting not only reduces the space occupied by parts, but also can fill and unload the hydraulic oil of the transition plate cylinder 2031, hydraulic support leg 2045, hydraulic motor 2053 and lifting cylinder assembly 2064 according to actual conditions, so as to realize the function of the above technical solution.

[0078] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A traction-type vehicle loading and unloading platform for heavy-load material transportation, characterized in that: include: A convenient transport device, a vehicle-mounted loading and unloading platform and a ground bracket, wherein the convenient transport device is connected to the vehicle, and the convenient transport device is specifically a steel frame, on which a plurality of rollers are rotatably connected, and the roller axes are arranged parallel to the axle axes, and the rear of the vehicle is connected to the vehicle-mounted loading and unloading platform, and a ground bracket is placed on the convenient transport device, and a plurality of guide rollers are rotatably connected to the top of the ground bracket, and the guide roller axes are arranged parallel to the roller axes.

2. A traction-type vehicle loading and unloading platform for heavy-load material transportation according to claim 1, characterized in that: The vehicle loading and unloading platform includes: a traction device, one end of which is rotatably connected to the rear of the vehicle, and the other end of the traction device is connected to the front of the trailer frame. A power control system is provided at the bottom of the trailer frame, a front transition plate is connected to the top of the trailer frame, the front transition plate is arranged adjacent to the convenient transport device, the top of the trailer frame is connected to the bottom of the lifting system, and a rolling platform is connected to the lifting system.

3. A traction-type vehicle loading and unloading platform for heavy-load material transportation according to claim 2, characterized in that: The traction device includes: a traction ring, which is sleeved on the hook at the rear of the vehicle, the traction ring is plugged into and matched with the front socket of the traction device frame through a screw rod, a nut is threadedly connected on the screw rod to fix the traction ring and the traction device frame, a jack is installed on the traction device frame, the rear of the traction device frame is plugged into and matched with the pin hole on the traction support through a pin, the traction support is longitudinally provided with a plurality of pin holes, and the traction support is connected to the front of the trailer frame.

4. A towing vehicle loading and unloading platform for heavy-load material transportation according to claim 3, characterized in that: The front transition plate includes: a front transition plate upper frame and a transition plate cylinder. Two connecting ears 2 are installed on the top of the trailer frame. Each connecting ear 2 is hinged to the bottom end of a transition plate cylinder. The transition plate cylinder is connected to the hydraulic power system through a pipeline. The top of the transition plate cylinder is hinged to the connecting ear 1. The connecting ear 1 is connected to the bottom of the upper frame of the front transition plate. The bottom of the upper frame of the front transition plate is connected to the top of the trailer frame through a scissor fork assembly. A plurality of lifting rings are installed on the top of the upper frame of the front transition plate. A plurality of clamps are installed on the upper frame of the front transition plate. A second roller is rotatably connected to the clamp. The second roller is arranged parallel to the axis of the roller.

5. The traction-type vehicle loading and unloading platform for heavy-load material transportation according to claim 4 is characterized in that: The scissor fork assembly includes: a slot one and a slot two, two slots one are connected in parallel to the top of the trailer frame, the slot one is slidably connected to the walking roller two, the walking roller two is rotatably connected to the bottom of the scissor fork plate, two slots two are connected in parallel to the bottom of the upper frame of the front transition plate, the slot two is slidably connected to the walking roller, the walking roller is rotatably connected to the top of the scissor fork plate two, the middle part of each scissor fork plate is rotatably connected to the middle part of a scissor fork plate, and a scissor fork mechanism is formed, and the scissor fork plate two is connected to the scissor fork plate two in another scissor fork mechanism through a connecting cross bar.

6. A towing vehicle loading and unloading platform for heavy-load material transportation according to claim 5, characterized in that: The trailer frame includes: a body frame, which is specifically a U-shaped steel structure, a power control system is installed at the bottom of the body frame, an open end of the body frame is arranged away from the vehicle, the upper part of the body frame is connected with a first slot, a second slot, and a gantry frame, a disconnected axle assembly is connected to the bottom of the body frame, a group of hydraulic legs are respectively connected to the front and rear ends of the body frame, the hydraulic legs are connected to the hydraulic control system through a second pipeline, and a traction support is connected to the front of the body frame.

7. A towing vehicle loading and unloading platform for heavy-load material transportation according to claim 6, characterized in that: The disconnected axle assembly includes: a rotating bearing assembly, an end of a rotating bearing assembly is respectively installed on both sides of the bottom of the body frame, the other end of the rotating bearing assembly is rotatably connected to the end of the axle support beam, a rotary lock is installed on the axle support beam, and the two ends of the rotary lock are respectively connected to the rolling platform and the body frame through a double nut, a connecting support frame is installed on the axle support beam, the bottom of the connecting support frame is hinged to one end of the suspension assembly, a copper wire shock absorber is connected between the suspension assembly and the axle support beam, the suspension assembly is connected to one side of the air path control system through an air duct, the air path control system is installed at the bottom of the body frame, and the other side of the air path control system is connected to the compressor of the vehicle through air duct 2, a tire assembly is rotatably connected to the suspension assembly, a wheel cover is installed on the axle support beam, the wheel cover is arranged above the tire assembly, and an air suspension is connected between the other end of the suspension assembly and the axle support beam.

8. The towing vehicle loading and unloading platform for heavy-load material transportation according to claim 7 is characterized in that: The rotating bearing assembly includes: an axle support, an axle support is installed on each side of the bottom of the vehicle body frame, a mounting plate is fixed on each upper and lower side of the axle support, a circular hole is penetrated through the mounting plate, each mounting plate is rotatably matched with an anti-wear pad, the two anti-wear pads are respectively arranged on the upper and lower sides of the steering column, a circular hole two is penetrated through the anti-wear pad, a rotating bearing is inserted into the circular hole and the circular hole two, the bottom end of the rotating bearing is connected to the bearing end cover, the top end of the rotating bearing is rotatably matched with the upper side of an anti-wear pad, and the side of the steering column is connected to the end of the axle support beam.

9. The towing vehicle loading and unloading platform for heavy-load material transportation according to claim 6, characterized in that: The rolling platform includes: a rolling platform deck, a rolling platform frame is connected to each side of the rolling platform deck, the rolling platform frame is connected to the bottom end of two rolling platform guide rails by bolts, the rolling platform guide rails are connected to the output end of the lifting system, the gantry frame is slidingly connected to the platform guide rails, two hydraulic motors are installed at the bottom of the rolling platform deck, the two hydraulic motors are symmetrically arranged at an oblique angle, each hydraulic motor is connected to the hydraulic control system through pipeline three, the hydraulic control system is included in the power control system, the output end of the hydraulic motor is connected to a sprocket, the sprocket is connected to another sprocket through a sprocket chain, the other sprocket is rotatably connected to the rolling platform deck, the sprocket chain is arranged around the rolling platform deck, the moving direction of the sprocket chain is perpendicular to the axis of roller two, a plurality of lifting rings are installed on the rolling platform deck, a plurality of clamps two are rotatably installed on the rolling platform deck, the clamps two are rotatably connected to a plurality of rollers three, and roller three is arranged parallel to the axis of roller two.

10. A method for loading and unloading a towing type vehicle loading and unloading platform for transporting heavy-loaded materials, applicable to a towing type vehicle loading and unloading platform for transporting heavy-loaded materials as claimed in any one of claims 1 to 9, comprising the following steps: Based on the hydraulic power system, the hydraulic oil is delivered to or released to the transition plate cylinder through the pipeline to adjust the height of the front transition plate to be equal to the height of the convenient transport device; Based on the lifting system, the rolling platform is controlled to move to the ground, and then the objects are moved to the rolling platform through the ground bracket; After moving the items on the ground bracket to the rolling platform, start the lifting system again and adjust the height of the rolling platform to be equal to that of the front transition plate; Guided by roller three, roller two and roller three, the articles are sequentially loaded on the convenient transport device, the front transition plate and the rolling platform, and the articles are transported; After the transportation is completed, the articles are guided by the roller, the second roller and the third roller again, and are unloaded from the convenient transport device, the front transition plate and the rolling platform in sequence.

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