Crawler-type power-assisted hand forklift

Abstract

The invention provides a crawler-type power-assisted hand forklift which comprises a walking mechanism arranged below a forklift frame and driven to walk through a crawler belt arranged on the walking mechanism. And the driving control part is electrically connected with the walking mechanism and controls the walking mechanism to drive walking. The problems that when an existing hand forklift is used, the hand forklift is pushed only by manpower, and walking wheels of the hand forklift can drive the hand forklift to advance are solved; when the forklift is used, manpower is greatly consumed, and especially when the field environment is severe, the situation that the forklift is trapped and the like can be even caused. Furthermore, the driving control part is used for achieving driving walking of the walking mechanism, the crawler belt is used for replacing an existing wheel type walking mode, the using weight of the whole hand forklift is effectively reduced, operation of the hand forklift is more convenient, and the hand forklift can adapt to different terrain environments in the using process. For example, when articles are carried in the field, the road gripping capacity of the walking mechanism can be greatly improved through the crawler-type walking mode.

Description

Technical Field

[0001] This invention relates to the field of tracked power loader technology, and particularly to a tracked power loader. Background Technology

[0002] Hand shovels (commonly known as "tiger shovels") are a common type of material handling equipment. They are characterized by their simple structure, high mobility, flexible steering, and low cost, making them widely used in the Chinese military for field operations and in storage and warehouse settings. Currently, the hand shovels commonly used by the Chinese military are two-wheeled, consisting of a frame, a running gear, and forks. The running gear comprises two wheels connected by a spindle. The forks are composed of two L-shaped forged steel for inserting and retrieving goods. The frame is fixed to the spindle and can rotate around it. Existing hand shovels are unpowered and rely on manual labor for propulsion.

[0003] Current hand excavators rely entirely on human power for propulsion, with their wheels carrying them forward. Field operations often involve working in soft ground, rugged terrain, and muddy wetlands, making these excavators extremely labor-intensive. Especially in harsh environments, they can even get stuck. Furthermore, their reliance on manual power results in laborious and time-consuming handling, poor terrain adaptability and maneuverability, low load capacity, and low efficiency, failing to meet the logistical support needs of modern warfare. Therefore, a power-assisted hand excavator is needed to address these technical problems. Summary of the Invention

[0004] To address at least one of the aforementioned technical problems, this invention proposes a tracked electric-assisted hand loader to solve the problems of existing hand loaders having no driving force, poor terrain adaptability, and poor maneuverability. Furthermore, this invention also addresses the issue that existing hand loaders rely solely on manual pushing to move forward, which is extremely labor-intensive, especially in harsh outdoor environments, and can even cause the hand loader to get stuck.

[0005] This invention provides a tracked power loader, comprising: a walking mechanism disposed below the frame and driven to move by tracks thereon;

[0006] The drive control unit is electrically connected to and controls the walking mechanism to drive it to move.

[0007] Preferred,

[0008] The traveling mechanism has at least two sets, which are symmetrically arranged on both sides of the frame via connecting frames.

[0009] Preferably, the walking mechanism includes:

[0010] Drive wheels are used to drive the tracks.

[0011] Road wheels are used to support the chassis, connecting frame, and cargo, and work with the drive wheels for movement;

[0012] Guide wheels are used for guiding tracks;

[0013] in,

[0014] The track is wrapped around the outside of the drive wheel, road wheel and guide wheel, and the track wrapped around the lower part of the drive wheel and road wheel is in contact with the ground.

[0015] Preferred,

[0016] The drive wheels are in-wheel motors, which include:

[0017] The hub shell is concentrically fitted outside the first wheel axle. The circumference of the hub shell is evenly distributed with grooves, the width of which is greater than the length of the track teeth.

[0018] End caps are located on the outside of the wheel hub housing;

[0019] The cylindrical columns are arranged in a circular array within the grooves of the hub shell. The central axis of the columns is parallel to the central axis of the hub shell, and the grooves between adjacent columns form tooth grooves that mesh with the track teeth.

[0020] The brake assembly is symmetrically arranged on the outer side of the connecting frame side plate and the inner side of the end cover, and is used to brake the hub motor.

[0021] Preferably, the braking assembly includes:

[0022] The brake disc is mounted on the end cover near the side plate and rotates synchronously with the end cover.

[0023] Brake calipers are mounted on the side plate of the connecting bracket.

[0024] The brake lever is used to control the brake caliper to brake the brake disc. The brake lever is located on the handlebars of the frame.

[0025] Preferred options also include:

[0026] The frame includes a load-bearing section for carrying goods and a handrail connected to the load-bearing section for easy operation by the operator;

[0027] A connecting frame, used to support the vehicle frame and located at the lower part of the vehicle frame, is vertically rotatably connected to the end of the load-bearing part away from the handrail; and the vehicle frame rotates vertically relative to the connecting frame to facilitate loading and unloading of goods.

[0028] Preferably, the connecting frame includes:

[0029] The side plate has at least two sets; the outer side of the side plate is connected to the drive wheel, the load wheel and the guide wheel by the first wheel axle, the second wheel axle and the third wheel axle respectively, and the central axis of the first wheel axle, the second wheel axle and the third wheel axle are all perpendicular to the side plate;

[0030] The connecting seat is provided in at least two sets, and is symmetrically arranged on the inner side of each side plate. The axis of the first wheel axle coincides with the central axis of the connecting seat.

[0031] A connecting rod is positioned between two connecting seats, with its axis coinciding with the central axis of the connecting seat and the axis of the first wheel axle.

[0032] Support bases, one or more sets; when there are multiple sets, each support base is symmetrically arranged on the upper part of the connecting rod, and the top surface of the support base forms an angle of 18° with the horizontal plane. The support base is used to support the load-bearing part.

[0033] Preferably, the drive control unit includes:

[0034] The electrical control system is located within the second mounting space formed between the two second mounting plates, the side plates, and the support frame; each of the second mounting plates is located inside the two side plates.

[0035] The electrical control system includes:

[0036] The motor controller is located in the second mounting space and is movably fixed to the second mounting plate;

[0037] The switch assembly, located on the handlebars, is connected to the motor controller and is used to control the movement of the tracked power loader.

[0038] Preferably, the switching assembly includes:

[0039] A power switch is used to control the on / off state of the vehicle's power supply.

[0040] The forward and reverse buttons are used to control the vehicle's direction of travel;

[0041] The thumb accelerator is used to manually control the driving speed;

[0042] A toggle switch for switching between manual and automatic modes;

[0043] The speed control switch is used to switch the vehicle between low, medium and high speeds.

[0044] Preferred,

[0045] When the tracked assisted hand loader is in the first environmental condition and in automatic mode: the speed of the walking mechanism is adjusted to low, medium and high speed according to the speed and bump information obtained by the sensor. When the bump information is greater than the preset value, the speed is adjusted to low and / or medium speed according to the bump range.

[0046] When the tracked assisted hand loader is in the first environmental condition and in automatic mode: the speed of the walking mechanism is adjusted to low, medium and high speed according to the speed and vehicle position obtained by the sensor. When the vehicle position does not change within a preset time under any speed of the walking mechanism, the speed is adjusted to low and / or medium speed according to the bumpy area.

[0047] The working principle and beneficial effects of this invention are as follows:

[0048] This invention provides a tracked power-assisted hand loader, comprising: a walking mechanism disposed below the frame and driven by tracks thereon; and a drive control unit electrically connected to and controlling the walking mechanism for driving. This invention addresses the problem that existing hand loader operations rely solely on manual pushing, with the wheels propelling the loader forward; this is extremely labor-intensive, especially in harsh outdoor environments, and can even lead to the loader getting stuck. Furthermore, by utilizing the drive control unit to drive the walking mechanism and replacing the existing wheeled walking system with tracks, the overall weight of the hand loader is effectively reduced, making it easier to operate and adapt to different terrains. For example, when transporting goods in the field, the tracked walking system significantly improves the walking mechanism's traction.

[0049] Specifically, compared with the prior art, the present invention also has the following beneficial effects:

[0050] 1. This invention, by setting up a running gear consisting of tracks, drive wheels, road wheels, and guide wheels, eliminates the need for components such as differentials, reducers, and drive shafts essential in traditional bridge-type transmission structures, effectively improving the vehicle's transmission efficiency and reliability. Simultaneously, the tracks have a large contact area with the ground, reducing slippage and allowing for better adaptation to complex terrains such as soft ground and muddy roads, preventing the vehicle from getting stuck. This effectively improves the loader's obstacle-crossing ability, passability, and adaptability to complex terrain. The road wheels bear the vehicle and its weight, increasing the loader's load-bearing capacity while ensuring stable operation; the guide wheels ensure the tracks operate normally, preventing deviation and improving vehicle stability and handling.

[0051] 2. This invention employs hub motors for direct independent drive, effectively reducing the number and size of vehicle parts, resulting in a simpler and more compact vehicle structure. This not only lowers manufacturing costs but also allows operators to precisely control the rotational speed of the two drive wheels, leading to a smaller turning radius and more agile steering.

[0052] 3. The walking mechanism used in this invention utilizes the track to ground the vehicle. The unbalanced force generated during the driving process will not be applied to the operator, making it easy to operate.

[0053] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0054] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0055] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0056] Figure 1 A 3D view of a tracked power loader;

[0057] Figure 2 This is a side view of a tracked power loader;

[0058] Figure 3 This is a perspective view of the connecting frame in this invention;

[0059] Figure 4 This is a schematic diagram showing the installation positions of the connecting frame and the motor controller in this invention;

[0060] Figure 5 This is a schematic diagram of the walking mechanism (omitting the single-sided track) in this invention;

[0061] Figure 6 This is a perspective view of the walking mechanism in this invention;

[0062] Figure 7 This is a side view of the walking mechanism in this invention;

[0063] Figure 8 This is a perspective view of the vehicle frame in this invention;

[0064] Figure 9 This is a side view of the vehicle frame in this invention;

[0065] Figure 10 for Figure 8 Enlarged view of point A in the middle.

[0066] In the diagram: 10. Frame; 101. Load-bearing unit; 1011. Load-bearing frame; 1012. Load-bearing seat; 1013. Forks; 102. Handrails; 1021. Right handlebar; 1022. Left handlebar;

[0067] 20. Connecting frame; 201. Side plate; 202. Connecting seat; 203. Connecting rod; 204. Support seat; 205. Second mounting plate;

[0068] 30. Walking mechanism; 301. Track; 302. Drive wheel; 3021. First axle; 3022. Hub housing; 30221. Groove; 3023. End cap; 3024. Column; 3025. Brake assembly; 30251. Brake disc; 30252. Brake caliper; 30253. Brake handle; 303. Road wheel; 3031. Second axle; 304. Guide wheel; 3041. Third axle;

[0069] 40. Control box;

[0070] 50. Mounting bracket; 501. Mounting frame; 502. First mounting plate;

[0071] 60. Motor controller;

[0072] 70. Switch assembly. Detailed Implementation

[0073] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0074] Please refer to Figures 1-10 As shown, a tracked power loader includes: a walking mechanism 30, which is disposed below the frame 10 and is driven to move by the tracks 301 disposed thereon;

[0075] The drive control unit is electrically connected to and controls the walking mechanism 30 to drive it to move.

[0076] In this invention, by utilizing a drive control unit to drive the walking mechanism and by using tracks instead of wheels, the overall weight of the hand-operated forklift is effectively reduced, making it easier to operate and adapt to different terrain environments. For example, when transporting goods in the field, the tracked walking method can greatly improve the traction of the walking mechanism.

[0077] Please refer to Figure 5 , Figure 6 and Figure 7 As shown in this embodiment,

[0078] Drive wheel 302 is a hub motor, which includes:

[0079] The hub shell 3022 is concentrically fitted outside the first wheel axle 3021. The circumference of the hub shell 3022 is evenly distributed with grooves 30221, and the width of the grooves 30221 is greater than the length of the track teeth on the inner wall of the track 301.

[0080] End cap 3023 is disposed on the outside of hub housing 3022;

[0081] The column 3024 is arranged in a circular array within the groove 30221 of the hub housing 3022. The central axis of the column 3024 is parallel to the central axis of the hub housing 3022. The groove 30221 between adjacent columns 3024 forms a tooth groove that meshes with the track teeth.

[0082] Braking assembly 3025 is symmetrically arranged on the outer side of side plate 201 of connecting frame 20 and the inner side of end cover 3023, and is used to brake hub motor.

[0083] In this embodiment, the drive wheel 302 is directly driven by a hub motor, eliminating the differential, reducer, drive shaft and other components in the traditional bridge transmission structure. This reduces the number of parts and makes the structure simpler and more compact, which not only reduces manufacturing and maintenance costs, but also improves the vehicle's passability and reliability.

[0084] The invention employs an independent direct drive by a hub motor, which not only reduces the manufacturing and assembly costs of the vehicle but also provides more space for the rational layout of other components, thereby improving the vehicle's space utilization rate.

[0085] Meanwhile, this embodiment uses two motors for independent direct drive, enabling operators to precisely control the speed and direction of each drive wheel, thus achieving zero-radius turning.

[0086] It should be noted that the working principle of the hub motor is existing technology and will not be elaborated here.

[0087] Please refer to Figure 1 , Figure 5 , Figure 6 and Figure 10 As shown in this embodiment,

[0088] Brake assembly 3025 includes:

[0089] Brake disc 30251 is mounted on end cover 3023 on the side near side plate 201 and rotates synchronously with end cover 3023;

[0090] Brake caliper 30252 is mounted on side plate 201 of connecting bracket 20;

[0091] The brake handle 30253 is used to control the brake caliper 30252 to brake the brake disc 30251. The brake handle 30253 is located on the handrail 102 of the frame 10.

[0092] It should be noted that in this embodiment, the brake caliper 30252 is connected to the brake handle 30253 via an oil pipe, forming a hydraulic braking system. When the hand loader brakes, the brake caliper 30252, under the coordinated action of the brake handle, oil pipe, electronic switch, and other braking device components, tightly clamps the brake disc 30251, thereby achieving deceleration or stopping of the vehicle.

[0093] Obviously, the braking method of the aforementioned brake assembly 3025 can also be achieved using other structural methods, such as electromagnetic brake braking.

[0094] Please refer to Figures 1-10 As shown in this embodiment,

[0095] The frame 10 includes a load-bearing section 101 for carrying goods and a handrail 102 connected to the load-bearing section 101 for easy operation by the operator.

[0096] The connecting frame 20 is used to support the frame 10 and is located at the lower part of the frame 10. It is vertically rotatably connected to the end of the bearing part 101 away from the handrail part 102. The frame 10 rotates vertically relative to the connecting frame 20 to facilitate loading and unloading of goods.

[0097] The traveling mechanism 30 has at least two sets, which are symmetrically arranged on both sides of the frame 10 via the connecting frame 20.

[0098] The walking mechanism 30 includes:

[0099] Drive wheel 302 is used to drive track 301 to move;

[0100] The road wheel 303 is used to support the frame 10, the connecting frame 20 and the cargo, and to move in conjunction with the drive wheel;

[0101] Guide wheel 304, used for guiding track 301;

[0102] in,

[0103] The track 301 is wrapped around the outside of the drive wheel 302, the road wheel 303 and the guide wheel 304, and the track 301 wrapped around the lower part of the drive wheel 302 and the road wheel 303 is in contact with the ground.

[0104] This embodiment uses a walking mechanism 30 composed of tracks 301, drive wheels 302, road wheels 303, and guide wheels 304. Compared to traditional wheels, the drive wheels 302 drive the tracks 301 to move the hand loader, eliminating the need for components such as differentials, reducers, and drive shafts that are essential in traditional bridge-type transmission structures, thus improving the vehicle's transmission efficiency and reliability. Simultaneously, the tracks 301 have a large contact area with the ground, providing strong grip and reducing slippage, making them better suited to complex terrains such as soft ground and muddy roads. They are less prone to getting stuck, effectively improving the hand loader's obstacle-crossing ability, passability, and adaptability to complex terrain.

[0105] In addition, by setting the road wheels 303 to bear the weight of the vehicle and the cargo, the load-bearing capacity of the hand loader is improved while ensuring the smooth operation of the vehicle; the guide wheels 304 ensure the normal operation of the tracks 301, prevent deviation, and improve the vehicle's driving stability and handling.

[0106] It should be noted that the track 301 in this embodiment is made of rubber, such as natural rubber, styrene-butadiene rubber, or neoprene rubber. The excellent flexibility of rubber allows the track 301 to better adapt to various complex terrains. When encountering uneven ground, the rubber track 301 can bend flexibly and conform closely to the ground, effectively reducing vehicle bumps and ensuring the stability of the hand-operated excavator. When traversing potholes or crossing small stones, the rubber track 301 can bend and deform, preventing damage to the track 301 due to excessive localized stress and ensuring smooth vehicle passage. The elasticity of rubber provides excellent shock absorption, reducing vibration and noise caused by friction and collision between the track 301 and the ground during vehicle operation.

[0107] Meanwhile, compared to the metal track 301, the rubber track 301 is lighter, reducing the overall weight of the vehicle, decreasing energy consumption, and improving the vehicle's handling agility. Rubber has a certain degree of wear resistance, and after special formulation and processing, it can meet the requirements for long-term use, reducing maintenance costs.

[0108] Please refer to Figure 3 and Figure 4 As shown, in this embodiment, the connecting frame 20 includes:

[0109] The side plate 201 has at least two sets; the outer side of the side plate is connected to the drive wheel 302, the load wheel 303 and the guide wheel 304 by the first wheel axle 3021, the second wheel axle 3031 and the third wheel axle 3041 respectively. The central axes of the first wheel axle 3021, the second wheel axle 3031 and the third wheel axle 3041 are all perpendicular to the side plate 201.

[0110] The connecting seat 202 is provided in at least two sets and is symmetrically arranged on the inner side of each side plate 201. The axis of the first wheel axle 3021 coincides with the central axis of the connecting seat 202.

[0111] A connecting rod 203 is disposed between two connecting seats 202, and the axis of the connecting rod 203 coincides with the central axis of the connecting seat 202 and the axis of the first wheel shaft 3021;

[0112] Support base 204, one or more sets; when there are multiple sets, each support base 204 is symmetrically arranged on the upper part of the connecting rod 203, the top surface of the support base 204 forms an angle of 18° with the horizontal plane, and the support base 204 is used to support the bearing part 101.

[0113] In this embodiment, a connecting frame 20 is used to connect the traveling mechanism 30 and provide an installation and support platform for the frame 10. Specifically, the two side plates 201 provide installation positions for the drive wheel 302, load-bearing wheel 303, and guide wheel 304 of the traveling mechanism 30, ensuring the stability of the rotation of each wheel. The side plates 201 provide a vertical rotation base for the frame 10, making it easy to load and unload goods. The support seat 204 provides support for the frame 10. The frame 10 is placed on the support seat 204, so that the operator does not bear the gravitational torque during vehicle movement, resulting in good maneuverability and stability.

[0114] Please refer to Figure 1 and Figure 10 As shown, in this embodiment, the tracked power loader also includes a drive control unit, which includes:

[0115] The electrical control system is located within the second mounting space formed between the two second mounting plates 205, the side plates 201, and the support frame 1011; each of the second mounting plates 205 is located inside the two side plates 201.

[0116] The electrical control system includes:

[0117] The motor controller 60 is located in the second mounting space and is movably fixed on the second mounting plate 205;

[0118] The switch assembly 70 is located on the handle 102 and is connected to the motor controller 60 for controlling the movement of the tracked power loader.

[0119] Furthermore, the switch assembly 70 includes:

[0120] A power switch is used to control the on / off state of the vehicle's power supply.

[0121] The forward and reverse buttons are used to control the vehicle's direction of travel;

[0122] The thumb accelerator is used to manually control the driving speed;

[0123] A toggle switch for switching between manual and automatic modes;

[0124] The speed control switch is used to switch the vehicle between low, medium and high speeds.

[0125] In this embodiment, the switch assembly 70 is disposed on the handrail 102. The switch assembly 70 includes a power switch for controlling the on / off state of the vehicle's power supply, forward / reverse buttons for controlling the vehicle's driving direction, a thumb throttle for manually controlling the driving speed, a switch for switching between manual and automatic modes, and a speed control switch for switching between low, medium, and high speeds. In automatic mode, it offers three speeds: high, medium, and low, to meet the needs of different application scenarios and terrain environments.

[0126] It should be noted that in this embodiment, the handle 102 includes a left handle 1022 disposed on the left side of the support 101 and a right handle 1021 disposed on the right side of the support 101. The power switch, forward / reverse buttons, and manual mode speed control switch are located on the right handle 1021; the manual / automatic mode switch, the three-speed conversion switch, and the brake lever 30253 are located on the left handle 1022. The working principle and connection method of the switch assembly 70 are prior art and will not be described further here.

[0127] Obviously, the aforementioned switch assembly 70 can be combined in various ways according to operational needs, so as to facilitate operator operation and improve the flexibility of the hand loader.

[0128] The tracked power loader provided in this application has a simple structure, low manufacturing and maintenance costs, and good terrain adaptability, passability, and maneuverability.

[0129] Please refer to Figure 8 and Figure 9 As shown, in this embodiment, the support unit 101 includes a support frame 1011 movably placed on the support base 204. A support seat 1012 is fixedly provided at one end of the support frame 1011 away from the handrail 102. The support seat 1012 is rotatably sleeved on the third wheel axle 3041 on one side of the guide wheel 304. The support frame 1011 rotates vertically around the support seat 1012 to scoop up food. A fork 1013 is provided at one end of the support frame 1011 away from the handrail 102 along the width direction of the support frame 1011. The fork 1013 is used for scooping and preventing slippage.

[0130] It should be noted that, in order to improve the overall structural integrity of the support frame 1011, the support frame 1011 in this embodiment is welded from seamless steel pipes. The aforementioned support frame 1011 comprises several seamless steel pipes, which are combined and formed by connecting them in a transverse, longitudinal, and bending manner. The function of the support frame 1011 in this embodiment is to provide a platform for supporting objects and has a certain load-bearing capacity. The specific structure of the support frame 1011 is not limited.

[0131] In this embodiment, by setting forks 1013, the support frame 1011 can rotate vertically around the support base 1012, and the angle of the forks 1013 can be adjusted to facilitate loading and unloading of goods by the operator. At the same time, by adjusting the distance between the forks 1013, the forks 1013 can adapt to the width of different goods, improving the applicability and flexibility of the forklift.

[0132] It should be noted that, in this example, the fork 1013 includes a horizontal part for scooping goods and a vertical part for hanging on the support frame 1011, and its shape is L-shaped. The fork 1013 is forged from low-alloy steel.

[0133] Please refer to Figure 1 , Figure 2 , Figure 8 As shown, to facilitate power supply, the tracked power-assisted forklift in this embodiment also includes a control box 40 and a mounting bracket 50 for housing the control box 40. The control box 40 houses components such as a battery, a power switch, and circuit overcurrent protection. In this embodiment, the battery is preferably a high-energy-density lithium battery, which has the advantage of a longer driving range in low-temperature environments.

[0134] It should be noted that, in this embodiment, the mounting frame 50 includes a mounting frame 501 fixed to the lower part of the support frame 1011 and a first mounting plate 502 disposed on the upper part of the mounting frame 501. The first mounting plate 502 and the support frame 1011 have a first mounting space. The control box 40 is located in the first mounting space and is movably mounted on the first mounting plate 502.

[0135] Specifically, the mounting frame 50 is formed by welding seamless steel pipes in a horizontal and vertical manner to form a mounting frame 501 fixed to the lower part of the support frame 1011. The first mounting plate 502 is fixed to the upper part of the mounting frame 501 by welding. The control box 40 is fixed to the first mounting plate 502 with screws.

[0136] In this embodiment, the control box 40 is located at one end near the handrail 102. In this way, the weight of the control box 40 can be used to counterweight the goods, thereby reducing the need for the operator to apply a counterweight force to the handrail 102 to overcome the weight of the goods. It also facilitates the operation of the electrical switches.

[0137] Please refer to Figures 1-10 As shown, in this embodiment, the tracked power loader also includes the following speed control methods:

[0138] When the tracked assisted hand loader is in the first environmental condition and in automatic mode: the speed of the walking mechanism 30 is adjusted to low speed, medium speed and high speed according to the speed and vehicle bump information obtained by the sensor. When the vehicle bump information is greater than the preset value, the speed is adjusted to low speed and / or medium speed according to the bump range.

[0139] When the tracked assisted hand loader is in the second environmental condition and in automatic mode: the speed of the walking mechanism 30 is adjusted to low, medium and high speed according to the speed and vehicle position obtained by the sensor. When the vehicle position does not change within a preset time under any speed of the walking mechanism 30, the speed is adjusted to low and / or medium speed according to the bumpy area.

[0140] In this embodiment, the vehicle speed adjustment state under the first environmental condition is the speed adjustment state when traveling on mountainous or uneven ground; the vehicle speed adjustment state under the second environmental condition is the speed adjustment state when the vehicle gets stuck on soft soil or muddy wetlands; by judging the terrain and driving status through sensors, and adjusting the driving parameters (driving status) in real time based on the current driving conditions, it can achieve automatic and intelligent speed adjustment and / or steering, thereby improving the driving adaptability of the hand-operated excavator in different terrain environments. (When the sensors are not used, its working direction, speed, and other driving-related control behaviors can be manually adjusted through the switch assembly.)

[0141] In this invention, by setting up a running mechanism consisting of tracks, drive wheels, road wheels, and guide wheels, the essential components of traditional bridge-type transmission structures such as differentials, reducers, and drive shafts are eliminated, effectively improving the vehicle's transmission efficiency and reliability. Simultaneously, the tracks have a large contact area with the ground, reducing slippage and allowing for better adaptation to complex terrains such as soft ground and muddy roads. They are less prone to getting stuck, effectively improving the loader's obstacle-crossing ability, passability, and adaptability to complex terrain. The road wheels bear the vehicle and its weight, increasing the loader's load-bearing capacity while ensuring stable operation; the guide wheels ensure the tracks operate normally, preventing deviation and improving vehicle stability and handling.

[0142] Furthermore, this invention employs in-wheel motors for direct and independent drive, effectively reducing the number and size of vehicle parts, resulting in a simpler and more compact vehicle structure. This not only lowers manufacturing costs but also allows operators to precisely control the rotational speed of the two drive wheels, leading to a smaller turning radius and more agile steering.

[0143] Furthermore, the walking mechanism used in this invention utilizes the tracks to ground the ground, and the unbalanced force generated during the driving process will not be applied to the human body, making it easy to operate.

[0144] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A tracked power loader, characterized in that, include: The traveling mechanism (30) is located below the frame (10) and is driven to travel by the tracks (301) provided thereon; The drive control unit is electrically connected to and controls the walking mechanism (30) to drive the walking mechanism.

2. The tracked power loader as described in claim 1, characterized in that, The walking mechanism (30) has at least two sets, and is symmetrically arranged on both sides of the frame (10) via connecting frames (20).

3. A tracked power loader as described in claim 2, characterized in that, The connecting frame (20) includes: The side plate (201) has at least two sets; the outer side of the side plate is connected to the drive wheel (302), the load wheel (303) and the guide wheel (304) by the first wheel axle (3021), the second wheel axle (3031) and the third wheel axle (3041) respectively. The central axes of the first wheel axle (3021), the second wheel axle (3031) and the third wheel axle (3041) are all perpendicular to the side plate (201). The connecting seat (202) is provided in at least two sets and is symmetrically arranged on the inner side of each side plate (201). The axis of the first wheel axle (3021) coincides with the central axis of the connecting seat (202). A connecting rod (203) is disposed between two connecting seats (202), and the axis of the connecting rod (203) coincides with the central axis of the connecting seat (202) and the axis of the first wheel shaft (3021); Support base (204), one or more sets; when there are multiple sets, each support base (204) is symmetrically arranged on the upper part of the connecting rod (203), the top surface of the support base (204) forms an angle of 18° with the horizontal plane, and the support base (204) is used to support the bearing part (101).

4. A tracked power loader as described in claim 2, characterized in that, The walking mechanism (30) includes: The drive wheel (302) is used to drive the track (301) to move; Road wheels (303) are used to support the frame (10), connecting frame (20) and cargo and to move in conjunction with the drive wheels; Guide wheel (304) for guiding track (301); in, The track (301) is wrapped around the outside of the drive wheel (302), the road wheel (303) and the guide wheel (304), and the track (301) wrapped around the lower part of the drive wheel (302) and the road wheel (303) is in contact with the ground.

5. A tracked power loader as described in claim 4, characterized in that, The drive wheel (302) is a hub motor, which includes: The hub shell (3022) is concentrically fitted outside the first wheel axle (3021). The circumference of the hub shell (3022) is evenly distributed with grooves (30221), and the width of the grooves (30221) is greater than the length of the track teeth on the inner wall of the track (301). End cap (3023) is located on the outside of hub housing (3022).

6. A tracked power loader as described in claim 5, characterized in that, Braking assembly (3025) is symmetrically arranged on the outside of the side plate (201) of the connecting frame (20) and the inside of the end cover (3023) for braking the hub motor; Brake assembly (3025) includes: The brake disc (30251) is mounted on the end cap (3023) on the side near the side plate (201) and rotates synchronously with the end cap (3023); Brake caliper (30252) is mounted on the side plate (201) of the connecting bracket (20); The brake handle (30253) is used to control the brake caliper (30252) to brake the brake disc (30251). The brake handle (30253) is located on the handrail (102) of the frame (10).

7. A tracked power loader as described in claim 2, characterized in that, The frame (10) includes a load-bearing section (101) for carrying goods and a hand-holding section (102) connected to the load-bearing section (101) for easy operation by the operator; A connecting frame (20) is used to support the frame (10) and is located at the lower part of the frame (10). It is vertically rotatably connected to the bearing part (101) at the end away from the handrail (102). The frame (10) rotates vertically relative to the connecting frame (20) to facilitate loading and unloading of goods.

8. A tracked power loader as described in claim 1, characterized in that, The drive control unit includes: The electrical control system is located in the second mounting space formed between the two second mounting plates (205), the side plates (201), and the support frame (1011); each of the second mounting plates (205) is located inside the two side plates (201); The electrical control system includes: The motor controller (60) is located in the second mounting space and is movably fixed on the second mounting plate (205); A switch assembly (70) is located on the handle (102) and connected to the motor controller (60) for controlling the movement of the tracked power loader.

9. A tracked power loader as described in claim 8, characterized in that, The switching assembly (70) includes: A power switch is used to control the on / off state of the vehicle's power supply. The forward and reverse buttons are used to control the vehicle's direction of travel; The thumb accelerator is used to manually control the driving speed; A toggle switch for switching between manual and automatic modes; The speed control switch is used to switch the vehicle between low, medium and high speeds.

10. A tracked power loader as described in claim 9, characterized in that, When the tracked assisted hand loader is in the first environmental condition and in automatic mode: the speed of the walking mechanism (30) is adjusted to low speed, medium speed and high speed according to the speed and vehicle bump information obtained by the sensor. When the vehicle bump information is greater than the preset value, the speed is adjusted to low speed and / or medium speed according to the bump range. When the tracked assisted hand loader is in the second environmental condition and in automatic mode: the speed of the walking mechanism (30) is adjusted to low speed, medium speed and high speed according to the speed and vehicle position obtained by the sensor. When the vehicle position does not change within a preset time under any speed of the walking mechanism (30), the speed is adjusted to low speed and / or medium speed according to the bumpy area.

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