Mine truck electric wheel maintenance system

Abstract

According to the mine truck electric wheel overhauling system provided by the invention, the three-axis heavy-load positioner, the electric translation platform, the dismounting robot, the electric lifting platform and the dismounting power assisting device are used, so that the electric wheel can be transported and overturned without manpower, the robot is used for dismounting the electric wheel, the overhauling efficiency of the electric wheel can be improved, and the labor intensity of workers is reduced. The three-shaft heavy-load positioner can realize the turning, lifting and rotating actions of the electric wheel, so that a maintainer can approach the electric wheel to be maintained from different angles and positions. And the electric lifting platform can lift an operator to a proper working height, so that the risk of high-altitude operation is reduced. The electric translation platform can move horizontally, so that an operator gets close to or away from the electric wheels, and disassembly and assembly operation can be carried out more conveniently. And the ground rail mechanism can enable the dismounting robot to be close to or far away from the electric wheels, so that the dismounting robot adapts to the electric wheels with different sizes, and the flexibility is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric wheel maintenance of mining trucks, and in particular to an electric wheel maintenance system for mining trucks. Background Art

[0002] The electric wheels of mining trucks run continuously under high load conditions, and the internal parts will be worn and damaged to varying degrees. The electric wheels of mining trucks need to be inspected and maintained regularly.

[0003] At present, the overall disassembly and assembly of electric wheels is mostly done manually. The disassembly and assembly of electric wheels requires the disassembly and assembly of a large number of bolts of different specifications, among which the disassembly torque of large-size bolts reaches 6500N·m. At present, large wrenches are used for manual disassembly, and tools weighing up to 10 kilograms need to be held in hand, which has low work efficiency and high labor intensity. Summary of the invention

[0004] The invention provides a mining truck electric wheel maintenance system to solve the problems of low operating efficiency and high labor intensity in the prior art.

[0005] In order to solve the above problems, the present invention provides a mining truck electric wheel maintenance system, including a three-axis heavy-load positioner, an electric translation platform, a ground rail mechanism, a disassembly and assembly robot, an electric lifting platform and a disassembly and assembly assisting device; the three-axis heavy-load positioner includes a flipping mechanism, a lifting mechanism and a slewing mechanism, the flipping mechanism is installed on the foundation, the lifting mechanism is installed on the flipping mechanism, the slewing mechanism is installed on the lifting mechanism, and the slewing mechanism carries the electric wheel to be repaired, wherein the slewing mechanism is used to drive the electric wheel to rotate along the vertical center line, the lifting mechanism is used to drive the electric wheel to rise and fall, and the flipping mechanism is used to drive the electric wheel to rotate along the horizontal center line Rotation; the electric translation platform can be horizontally movably arranged on the foundation, the electric translation platform is used to carry operators, the ground rail mechanism is installed on the foundation, the disassembly and assembly robot is installed on the ground rail mechanism to translate as a whole through the ground rail mechanism, and the disassembly and assembly robot is used to disassemble and assemble the electric wheels on the three-axis heavy-load positioner; the electric lifting platform is located on the side of the three-axis heavy-load positioner away from the electric translation platform, the electric lifting platform can be lifted and lowered on the foundation, the electric lifting platform is used to carry operators, the disassembly and assembly assist device is installed on the electric lifting platform, and the disassembly and assembly assist device is used for the operator to disassemble and assemble the electric wheels.

[0006] Furthermore, the flipping mechanism includes a fixed bracket and a flipping assembly, the fixed bracket is fixed to the foundation, the flipping assembly is rotatably arranged on the fixed bracket, the lifting mechanism includes a connecting assembly and a lifting assembly, the connecting assembly is installed on the flipping assembly, and the lifting assembly is liftably installed on the connecting assembly, the slewing mechanism includes a lifting bracket, a slewing assembly and a locking structure, the lifting bracket is installed on the lifting assembly, the slewing assembly is rotatably arranged on the lifting bracket, the rotation center line of the slewing assembly is vertically arranged, the slewing assembly is used to carry the electric wheel, the locking structure is arranged on the slewing assembly, and the locking structure is used to lock the electric wheel to the slewing assembly.

[0007] Furthermore, the flip assembly includes a flip bearing with external teeth, and the flip mechanism also includes a flip motor installed on the fixed bracket, and the output shaft of the flip motor is meshed with the external teeth of the flip bearing through gears; the rotating assembly includes a rotating bearing with external teeth, and the rotating mechanism also includes a rotating motor installed on the lifting bracket, and the output shaft of the rotating motor is meshed with the external teeth of the rotating bearing through gears.

[0008] Furthermore, the connecting assembly includes a mating nut, in which a ball is arranged, and the lifting assembly includes a lifting frame, a lifting screw and a lifting motor. The lifting screw and the lifting motor are both installed on the lifting frame. The lifting screw and the mating nut cooperate, and the lifting motor drives the lifting screw to rotate. The lifting screw drives the lifting frame to rise and fall when it rotates, and the rotating mechanism rises and falls with the lifting frame.

[0009] Furthermore, the slewing mechanism also includes a plurality of tooling plates of different sizes, any one of which can be detachably mounted on the slewing assembly, and the tooling plates are used to connect with an electric wheel of matching size so as to mount the electric wheel on the slewing assembly; the mining truck electric wheel maintenance system also includes a tooling rack, which is used to place the tooling plates.

[0010] Furthermore, the disassembly and assembly robot includes a six-axis industrial robot and a hydraulic disassembly and assembly mechanism. The six-axis industrial robot is installed on an electric translation platform, and the hydraulic disassembly and assembly mechanism is installed on the six-axis industrial robot so that the hydraulic disassembly and assembly mechanism can be driven to move by the six-axis industrial robot. The hydraulic disassembly and assembly mechanism is used to disassemble and assemble the bolts on the electric wheels of the three-axis heavy-load positioner.

[0011] Furthermore, the electric lifting platform includes a moving track, a scissors mechanism and a carrying platform. The scissors mechanism can be horizontally movably arranged on the moving track, the carrying platform is arranged at the top of the scissors mechanism, the scissors mechanism is used to drive the carrying platform to rise and fall, and the disassembly and assembly assisting device is installed on the carrying platform.

[0012] Furthermore, the electric lifting platform also includes an extreme position sensor, which is used to detect whether the load-bearing platform moves to a safe distance from the three-axis heavy-load positioner. The three-axis heavy-load positioner can only move when the load-bearing platform moves to a safe distance from the three-axis heavy-load positioner.

[0013] Furthermore, the disassembly and assembly assisting device includes a first assisting arm, a hydraulic wrench, a second assisting arm and an electric wrench. The first assisting arm is installed on the electric lifting platform, the hydraulic wrench is installed at the end of the first assisting arm, the second assisting arm is installed on the electric lifting platform, and the electric wrench is installed at the end of the second assisting arm.

[0014] Furthermore, the electric wheel maintenance system for mining trucks also includes a waste oil recovery device, which includes an oil barrel and a drive pump assembly. The drive pump assembly is used to suck the waste oil in the electric wheel on the three-axis heavy-load positioner into the oil barrel. The electric wheel maintenance system for mining trucks also includes an electronic control system. The three-axis heavy-load positioner, electric translation platform, disassembly and assembly robot, and electric lifting platform are all electrically connected to the electronic control system.

[0015] The technical solution of the present invention is applied to provide a mine truck electric wheel maintenance system, including a three-axis heavy-load positioner, an electric translation platform, a disassembly and assembly robot, an electric lifting platform and a disassembly and assembly assisting device; the three-axis heavy-load positioner includes a flipping mechanism, a lifting mechanism and a slewing mechanism, the flipping mechanism is installed on the foundation, the lifting mechanism is installed on the flipping mechanism, the slewing mechanism is installed on the lifting mechanism, and the slewing mechanism carries the electric wheel to be repaired, wherein the slewing mechanism is used to drive the electric wheel to rotate along the vertical center line, the lifting mechanism is used to drive the electric wheel to lift, and the flipping mechanism is used to drive the electric wheel to rotate along the horizontal center line; The electric translation platform can be horizontally movably arranged on the foundation, the electric translation platform is used to carry operators, the ground rail mechanism is installed on the foundation, the disassembly and assembly robot is installed on the ground rail mechanism to translate as a whole through the ground rail mechanism, and the disassembly and assembly robot is used to disassemble and assemble the electric wheels on the three-axis heavy-load positioner; the electric lifting platform is located on the side of the three-axis heavy-load positioner away from the electric translation platform, the electric lifting platform can be lifted and lowered on the foundation, the electric lifting platform is used to carry operators, the disassembly and assembly assist device is installed on the electric lifting platform, and the disassembly and assembly assist device is used for operators to disassemble and assemble the electric wheels.

[0016] In this scheme, by using a three-axis heavy-duty positioner, an electric translation platform, a disassembly and assembly robot, an electric lifting platform and a disassembly and assembly assisting device, it is possible to realize the flipping of the electric wheel without human handling. The use of robots to disassemble and assemble the electric wheel can greatly improve the maintenance efficiency of the electric wheel of the mining truck, reduce the time of manual operation, and reduce the labor intensity of manual labor. The three-axis heavy-duty positioner can realize the flipping, lifting and rotating actions of the electric wheel, so that the maintenance personnel can approach the electric wheel to be repaired from different angles and positions, which improves the flexibility of the operation. The electric lifting platform can lift the operator to a suitable working height, reduce the risk of high-altitude operations, and enable the operator to work in a safe environment. The setting of the disassembly and assembly robot realizes the automation of the disassembly and assembly of the electric wheel, reduces the labor intensity, and reduces human errors. The electric translation platform can move horizontally, which can enable the operator to approach or move away from the electric wheel, and perform disassembly and assembly operations more conveniently. The ground rail mechanism can enable the disassembly and assembly robot to approach or move away from the electric wheel, so that the disassembly and assembly robot can adapt to electric wheels of different sizes, improve flexibility, save space, make the maintenance area more compact, and adapt to the working environment with limited space. Moreover, the electric wheel maintenance system for mining trucks improved in this embodiment can adapt to electric wheels of different sizes and weights and has wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the structure of a mining truck electric wheel maintenance system provided by an embodiment of the present invention is shown;

[0019] Figure 2 It shows a schematic structural diagram of a three-axis heavy-load positioner of a mining truck electric wheel maintenance system provided by an embodiment of the present invention;

[0020] Figure 3 A schematic structural diagram of a rollover assembly and a rollover protection assembly of a three-axis heavy-load positioner provided by an embodiment of the present invention is shown;

[0021] Figure 4 A schematic diagram showing the structure of an electromagnetic brake of a three-axis heavy-load positioner provided by an embodiment of the present invention is shown;

[0022] Figure 5 A schematic structural diagram of a rotary assembly and a hydraulic clamping mechanism of a three-axis heavy-load positioner provided by an embodiment of the present invention is shown;

[0023] Figure 6 A schematic structural diagram of a lifting mechanism of a three-axis heavy-load positioner provided by an embodiment of the present invention is shown;

[0024] Figure 7 A schematic structural diagram of a lifting protection assembly of a lifting mechanism of a three-axis heavy-load positioner provided by an embodiment of the present invention is shown;

[0025] Figure 8 A schematic structural diagram of an electric lifting platform of an electric wheel maintenance system for a mining truck provided in an embodiment of the present invention is shown.

[0026] The above drawings include the following reference numerals:

[0027] 10. Foundation; 11. Ground track mechanism;

[0028] 20. Three-axis heavy-load positioner;

[0029] 30. Electric translation platform;

[0030] 40. Disassembly and assembly robot;

[0031] 50. Electric lifting platform; 51. Moving track;

[0032] 52. Scissor mechanism; 53. Carrying platform;

[0033] 60. Disassembly and assembly of power-assisting device;

[0034] 61. First booster arm; 62. Second booster arm;

[0035] 70. Tool rack;

[0036] 80. Waste oil recovery device;

[0037] 90. Electronic control system;

[0038] 100. Electric wheel;

[0039] 110. Flipping mechanism;

[0040] 111. Fixed bracket;

[0041] 112. Flip assembly;

[0042] 113. Flip motor;

[0043] 114. Fixed slide seat;

[0044] 115. Rollover protection assembly;

[0045] 1151, anti-loosening gear mechanism; 1152, anti-loosening servo motor;

[0046] 1153. Electromagnetic brake; 1154. Ratchet mechanism;

[0047] 116. Turn over the bearing;

[0048] 120. Lifting mechanism;

[0049] 121. Connecting components;

[0050] 1211, mating nut; 1212, driven nut;

[0051] 1213. Nut mounting bracket; 1214. Nut anti-fall mounting plate;

[0052] 122. Lifting assembly;

[0053] 123. Lifting frame;

[0054] 124. Lifting screw;

[0055] 125. Lifting motor;

[0056] 126. Lifting guide rail;

[0057] 127. Lifting protection assembly;

[0058] 130. Rotating mechanism;

[0059] 131. Lifting bracket;

[0060] 132. Rotary assembly;

[0061] 133. Locking structure;

[0062] 134. Flip the swing arm;

[0063] 135. Rotary motor;

[0064] 136. Hydraulic clamping mechanism; 1361. Locking hydraulic motor;

[0065] 1362. Transmission assembly; 1363. Locking head;

[0066] 140. Tooling board. DETAILED DESCRIPTION

[0067] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0068] like Figures 1 to 8As shown, an embodiment of the present invention provides a mining truck electric wheel maintenance system, including a three-axis heavy-load positioner 20, an electric translation platform 30, a ground rail mechanism 11, a disassembly and assembly robot 40, an electric lifting platform 50 and a disassembly and assembly assisting device 60; the three-axis heavy-load positioner 20 includes a flipping mechanism 110, a lifting mechanism 120 and a slewing mechanism 130, the flipping mechanism 110 is installed on the foundation 10, the lifting mechanism 120 is installed on the flipping mechanism 110, the slewing mechanism 130 is installed on the lifting mechanism 120, and the slewing mechanism 130 carries the electric wheel 100 to be repaired, wherein the slewing mechanism 130 is used to drive the electric wheel 100 to rotate along the vertical center line, the lifting mechanism 120 is used to drive the electric wheel 100 to rise and fall, and the flipping mechanism 110 is used to drive the electric wheel 100 to rise and fall. The moving wheel 100 rotates along the horizontal center line; the electric translation platform 30 can be horizontally movably arranged on the foundation 10, the electric translation platform is used to carry operators, the ground rail mechanism 11 is installed on the foundation, the disassembly and assembly robot 40 is installed on the ground rail mechanism 11, so as to be translated as a whole through the ground rail mechanism 11, and the disassembly and assembly robot 40 is used to disassemble and assemble the electric wheel 100 located on the three-axis heavy-load positioner 20; the electric lifting platform 50 is located on the side of the three-axis heavy-load positioner 20 away from the electric translation platform 30, the electric lifting platform 50 can be lifted and lowered on the foundation 10, the electric lifting platform 50 is used to carry operators, and the disassembly and assembly assisting device 60 is installed on the electric lifting platform 50, and the disassembly and assembly assisting device 60 is used for the operator to disassemble and assemble the electric wheel 100.

[0069] In this embodiment, by using a three-axis heavy-duty positioner 20, an electric translation platform 30, a disassembly and assembly robot 40, an electric lifting platform 50 and a disassembly and assembly assisting device 60, it is possible to realize the flipping of the electric wheel 100 without human handling. By using a robot to disassemble and assemble the electric wheel 100, the maintenance efficiency of the electric wheel of the mining truck can be greatly improved, the manual operation time can be reduced, and the labor intensity can be reduced. The three-axis heavy-duty positioner 20 can realize the flipping, lifting and rotating actions of the electric wheel 100, so that the maintenance personnel can approach the electric wheel 100 to be repaired from different angles and positions, thereby improving the flexibility of the operation. The electric lifting platform 50 can lift the operator to a suitable working height, reduce the risk of high-altitude operations, and enable the operator to work in a safe environment. The setting of the disassembly and assembly robot 40 realizes the automation of the disassembly and assembly of the electric wheel 100, reduces the labor intensity, and reduces human errors. The electric translation platform 30 can move horizontally, so that the operator can approach or move away from the electric wheel 100, and perform disassembly and assembly operations more conveniently. The ground rail mechanism 11 can make the disassembly and assembly robot 40 approach or move away from the electric wheel 100, and can make the disassembly and assembly robot 40 adapt to electric wheels 100 of different sizes, thereby improving flexibility, saving space, making the maintenance area more compact, and adapting to a working environment with limited space. Moreover, the electric wheel maintenance system for mining trucks improved in this embodiment can adapt to electric wheels 100 of different sizes and weights, and has wide applicability.

[0070] like Figure 2 As shown, the flipping mechanism 110 includes a fixed bracket 111 and a flipping assembly 112, the fixed bracket 111 is fixed to the foundation 10, and the flipping assembly 112 is rotatably arranged on the fixed bracket 111. The lifting mechanism 120 includes a connecting assembly 121 and a lifting assembly 122, the connecting assembly 121 is installed on the flipping assembly 112, and the lifting assembly 122 is liftably installed on the connecting assembly 121. The slewing mechanism 130 includes a lifting bracket 131, a slewing assembly 132 and a locking structure 133, the lifting bracket 131 is installed on the lifting assembly 122, the slewing assembly 132 is rotatably arranged on the lifting bracket 131, and the rotation center line of the slewing assembly 132 is vertically arranged, the slewing assembly 132 is used to carry the electric wheel 100, and the locking structure 133 is arranged on the slewing assembly 132, and the locking structure 133 is used to lock the electric wheel 100 to the slewing assembly 132.

[0071] In this embodiment, the combination of the flip assembly 112, the lifting assembly 122 and the slewing assembly 132 provides a multi-dimensional operating space, allowing the electric wheel 100 to be inspected from different angles and heights, so that the maintenance personnel can quickly adjust the electric wheel 100 to a suitable working position, saving time and labor, and increasing the flexibility of the operation. The fixed bracket 111 and the lifting bracket 131 provide a stable support structure, so that the mining truck electric wheel maintenance system can remain stable during use, reducing the risk of failure. Moreover, the locking structure 133 is evenly distributed on the slewing assembly 132 in the circumferential direction, which can ensure that the electric wheel 100 is stably fixed on the slewing assembly 132 during the maintenance process, preventing the electric wheel 100 from accidentally sliding or falling, and increasing the safety of the operation.

[0072] Alternatively, if Figure 5As shown, the rotary mechanism 130 is also provided with a hydraulic clamping mechanism 136 along the circumference of the rotary assembly 132. The hydraulic clamping mechanism 136 includes a locking hydraulic motor 1361, a transmission assembly 1362, a trapezoidal threaded screw and a locking head 1363. The locking hydraulic motor 1361 and the transmission assembly 1362 are installed on the rotary assembly 132. The locking head 1363 is installed on one end of the trapezoidal threaded screw. The locking hydraulic motor 1361 drives the trapezoidal threaded screw to move through the transmission assembly 1362. The trapezoidal threaded screw drives the locking head 1363 to move along the radial direction of the rotary assembly 132, so as to press or avoid the tooling plate 140 through the locking head 1363. The hydraulic clamping mechanism 136 can lock the electric wheel 100 on the rotary assembly 132, can play a role in positioning the electric wheel 100, and can also ensure that the electric wheel 100 of the heavy-load positioner will not loosen or slip during operation. Furthermore, the multiple hydraulic clamping mechanisms 136 distributed along the circumference of the rotary assembly 132 can evenly apply pressure to the tooling plate 140, which helps to avoid deformation or damage to the tooling plate 140 caused by uneven pressure distribution. The multiple hydraulic clamping mechanisms 136 work together to provide a greater total locking force to ensure that the tooling plate 140 will not loosen under extreme working conditions. Moreover, the design of multiple hydraulic clamping mechanisms 136 reduces the safety risk caused by the failure of a single mechanism.

[0073] Furthermore, the flip assembly 112 includes a flip bearing 116 with external teeth, and the flip mechanism 110 also includes a flip motor 113 installed on the fixed bracket 111, and the output shaft of the flip motor 113 is meshed with the external teeth of the flip bearing 116 through gears; the rotating assembly 132 includes a rotating bearing with external teeth, and the rotating mechanism 130 also includes a rotating motor 135 installed on the lifting bracket 131, and the output shaft of the rotating motor 135 is meshed with the external teeth of the rotating bearing through gears.

[0074] In this embodiment, the flip motor 113 or the rotary motor 135 drives the assembly by meshing the gear with the outer teeth of the flip bearing 116 or the rotary bearing, which can achieve precise control of the flip angle or the rotary angle, and can greatly improve the working efficiency compared with manual flipping or rotation. In addition, the combination of the motor and the gear provides reliable power transmission, reduces errors caused by improper operation or human error, and can also reduce the labor intensity and physical exertion of the operator.

[0075] Alternatively, if Figures 3 to 5As shown, the flip mechanism 110 is also provided with a flip protection assembly 115, which includes an anti-loosening gear mechanism 1151, an anti-loosening servo motor 1152 and an electromagnetic brake 1153. The anti-loosening gear mechanism 1151 is meshed with the outer teeth of the flip bearing 116, the anti-loosening servo motor 1152 is installed on the fixed bracket 111, and the anti-loosening servo motor 1152 is connected to the anti-loosening gear mechanism 1151 through the electromagnetic brake 1153; wherein, when the flip bearing 116 rotates normally, the anti-loosening gear mechanism 1151 is driven, and when the flip bearing 116 rotates abnormally, the electromagnetic brake 1153 brakes the anti-loosening gear mechanism 1151, and the anti-loosening gear mechanism 1151 brakes the flip bearing 116 to prevent further damage and potential safety accidents. Moreover, the anti-loosening servo motor 1152, the electromagnetic brake 1153 and the anti-loosening gear mechanism 1151 are integrated in one assembly, which reduces the space occupied and improves the integration of the heavy-duty positioner.

[0076] Optionally, the rollover protection assembly 115 also includes an encoder. When the rotation speed of the rollover bearing 116 or the anti-loosening gear mechanism 1151 detected by the encoder exceeds the set normal rotation speed range, the electromagnetic brake 1153 brakes the anti-loosening gear mechanism 1151; the rollover protection assembly 115 also includes a ratchet mechanism 1154, and the ratchet mechanism 1154 cooperates with the anti-loosening gear mechanism 1151 so that the anti-loosening gear mechanism 1151 can only rotate in one direction. The encoder can monitor the rotation speed of the rollover bearing 116 or the anti-loosening gear mechanism 1151 in real time to ensure that it runs within the set normal rotation speed range. When the rotation speed exceeds this range, the encoder will trigger the electromagnetic brake 1153, so as to stop or adjust the rotation speed in time to avoid damage caused by overspeeding or too slow speed. Moreover, the ratchet mechanism 1154 cooperates with the anti-loosening gear mechanism 1151 to prevent the gear from reversing when subjected to a reverse force, ensuring that the gear can only rotate in one direction. By limiting the rotation direction of the gear, the ratchet mechanism can reduce the wear and damage of the gear caused by incorrect operation or unexpected reverse force, and extend the service life of the equipment.

[0077] like Figure 2 As shown, the connecting assembly 121 includes a mating nut 1211, in which a ball is arranged, and the lifting assembly 122 includes a lifting frame 123, a lifting screw rod 124 and a lifting motor 125. The lifting screw rod 124 and the lifting motor 125 are both installed on the lifting frame 123. The lifting screw rod 124 and the mating nut 1211 cooperate, and the lifting motor 125 drives the lifting screw rod 124 to rotate. The lifting screw rod 124 drives the lifting frame 123 to rise and fall when rotating, and the rotating mechanism 130 rises and falls with the lifting frame 123.

[0078] In this embodiment, the ball bearings provided in the nut 1211 can reduce the friction between the screw and the nut, making the lifting movement smoother, reducing wear, and reducing maintenance costs and maintenance frequency. The lifting motor 125 drives the lifting screw 124 to rotate, driving the lifting frame 123 to lift and lower, and the height of the lifting frame 123 can be adjusted. Moreover, through the fixed slide 114 on the lifting guide rail 126, the lifting and lowering of the slewing mechanism 130 can be made smooth, reducing unnecessary vibrations, and avoiding wear and safety hazards caused by it. The slewing mechanism 130 can be lifted and lowered with the lifting frame 123. Combined with the characteristic that the slewing mechanism 130 can rotate 360 ​​degrees, the slewing mechanism 130 can be lifted and lowered without manual handling, thereby improving the efficiency of maintenance.

[0079] Alternatively, if Figure 6 As shown, the connection assembly 121 is also provided with a lifting protection assembly 127, and when the mating nut 1211 or the lifting screw 124 is abnormal, the lifting protection assembly 127 locks the lifting screw 124. The lifting protection assembly 127 can lock the lifting screw 124 when the mating nut 1211 or the lifting screw 124 is abnormal, preventing further damage and potential safety accidents.

[0080] Alternatively, if Figure 7 As shown, the connection assembly 121 may also include a driven nut 1212, a nut mounting bracket 1213, and a nut anti-fall mounting plate 1214, etc. The mating nut 1211 and the driven nut 1212 are meshed through the spiral roller of the lifting screw 124, the nut mounting bracket 1213 is connected to the mating nut 1211 by screws, the nut anti-fall mounting plate 1214 and the nut mounting bracket 1213 are fixed by a shaft pin and a screw, and the nut anti-fall mounting plate 1214 is connected to the driven nut 1212. The design of the nut anti-fall mounting plate 1214 and the driven nut 1212 can prevent the lifting screw 124 and the connection assembly from accidentally falling due to the failure of the mating nut 1211, thereby protecting the safety of operators and equipment. When the mating nut 1211 is operating normally, the driven nut 1212 does not participate in the load, which can reduce unnecessary wear and maintenance requirements. When the mating nut 1211 fails, the mating nut 1211 and the driven nut 1212 form a reverse backlash combination, which can prevent the lifting screw 124 from rotating, preventing further damage and potential safety accidents.

[0081] Optionally, in an embodiment not shown in the figure, the slewing mechanism 130 further has a flip swing arm 134, and the angle of the lifting frame 123 relative to the lifting bracket 131 can be adjusted by flipping the swing arm 134, thereby increasing the flexibility and adaptability of the operation. Moreover, the flip swing arm 134 can also increase the stability of the entire structure, especially when performing a flipping operation, and can provide better support and balance.

[0082] Among them, the slewing mechanism 130 also includes a plurality of tooling plates 140 of different sizes, any one of the tooling plates 140 can be detachably mounted on the slewing assembly 132, and the tooling plate 140 is used to connect with the electric wheel 100 of matching size to install the electric wheel 100 on the slewing assembly 132; the mining truck electric wheel maintenance system also includes a tooling rack 70, which is used to place the tooling plate 140.

[0083] In this embodiment, multiple tooling plates 140 of different sizes are equipped to adapt to electric wheels 100 of different specifications, thereby enhancing the adaptability and flexibility of the mine truck electric wheel maintenance system. The tooling plate 140 is detachable, which reduces the time required to replace the tooling plate 140 and improves the maintenance efficiency. The tooling rack 70 provides a special place to store and maintain the tooling plate 140, which is convenient for quick access and return, helps prevent the tooling plate 140 from being lost or damaged, and reduces the time wasted by operators looking for tooling plates.

[0084] Furthermore, the disassembly and assembly robot 40 includes a six-axis industrial robot and a hydraulic disassembly and assembly mechanism. The six-axis industrial robot is installed on the electric translation platform 30, and the hydraulic disassembly and assembly mechanism is installed on the six-axis industrial robot so that the hydraulic disassembly and assembly mechanism can be driven to move by the six-axis industrial robot. The hydraulic disassembly and assembly mechanism is used to disassemble and assemble the bolts on the electric wheel 100 of the three-axis heavy-load positioner 20.

[0085] In this embodiment, the hydraulic disassembly and assembly mechanism includes: a hydraulic cylinder, a connector, and a control valve, etc. When it is necessary to disassemble and assemble the bolts on the electric wheel 100, the hydraulic pump in the hydraulic pump station is started, and the hydraulic oil is transported to the hydraulic cylinder through the pipeline. The control valve on the hydraulic disassembly and assembly mechanism can control the direction and speed of the hydraulic oil flow, so that the piston of the hydraulic cylinder can move forward. The connector on the hydraulic cylinder contacts the bolt and applies pressure to the bolt, so that the bolt begins to loosen or tighten. The pressure can be adjusted by adjusting the control valve until the bolt is completely loosened or completely tightened. When a bolt is disassembled and assembled, the control valve can be reversed to make the hydraulic cylinder piston retreat, and the disassembly and assembly of the next bolt can be continued.

[0086] Specifically, when the electric wheel 100 needs to be disassembled, the six-axis industrial robot located on the electric translation platform 30 and equipped with a hydraulic disassembly mechanism starts working, driving the hydraulic disassembly mechanism to move, so that the end sleeve of the hydraulic disassembly mechanism reaches the top of the bolt to be disassembled, and then the six-axis industrial robot descends, and the hydraulic disassembly mechanism rotates slowly, so that the hydraulic disassembly mechanism can smoothly recognize the cap. After the recognition is completed, the hydraulic disassembly mechanism disassembles the bolt, and the operation is repeated in sequence until all the bolts on the electric wheel 100 are disassembled and the component disassembly operation is completed. Through the automated operation of the six-axis industrial robot and the hydraulic disassembly mechanism, manual participation can be reduced, and production efficiency and safety can be improved. In addition, the hydraulic disassembly mechanism can accurately control the torque and position, ensure the accuracy of the bolt disassembly process, and reduce human errors; it can also adjust the pressure and speed as needed to adapt to bolts of different sizes and materials, thereby increasing the scope of application of the mine truck electric wheel maintenance system. This solution can save a lot of manual work, reduce labor intensity, and improve maintenance efficiency.

[0087] Optionally, in an embodiment not shown in the figure of this scheme, the hydraulic disassembly and assembly mechanism includes a hydraulic wrench, a reaction arm, a lifting cylinder, etc. The lifting cylinder is located at one end where the hydraulic disassembly and assembly mechanism is connected to the six-axis industrial robot, and the hydraulic wrench is located at the other end of the hydraulic disassembly and assembly mechanism. When the bolts on the electric wheel 100 are disassembled and assembled, the six-axis industrial robot drives the hydraulic disassembly and assembly mechanism to reach above the bolts to be disassembled and assembled. Since the gravity of the hydraulic disassembly and assembly mechanism is relatively large, the pressure of the hydraulic disassembly and assembly mechanism on the bolts to be disassembled and assembled is adjusted to zero through the lifting function of the lifting cylinder, and then the hydraulic wrench is aimed at the bolts to be disassembled and assembled to start disassembly and assembly until all the bolts are disassembled and assembled. In addition, the reaction arm can offset the torque generated when disassembling and assembling the bolts to prevent damage to the hydraulic disassembly and assembly mechanism.

[0088] like Figure 3 As shown, the electric lifting platform 50 includes a moving track 51, a scissors-fork mechanism 52 and a carrying platform 53. The scissors-fork mechanism 52 can be horizontally movably arranged on the moving track 51, and the carrying platform 53 is arranged at the top of the scissors-fork mechanism 52. The scissors-fork mechanism 52 is used to drive the carrying platform 53 to rise and fall, and the disassembly and assembly assisting device 60 is installed on the carrying platform 53.

[0089] In this embodiment, the base of the scissor mechanism 52 is connected to the moving track 51 through rollers, and the bearing platform 53 is arranged at the top of the scissor mechanism 52. The motor drives the rollers to realize the movement of the bearing platform 53 on the moving track 51, which increases the flexibility of the operation, can cover a larger working area, and adapt to electric wheels 100 of different sizes. The scissor mechanism 52 can also drive the bearing platform 53 to rise and fall, so that the working height can be adjusted as needed to adapt to the operation requirements of different heights. In addition, the disassembly and assembly assisting device 60 is installed on the bearing platform 53, so that the operator can directly disassemble and assemble the electric wheel 100 at the working height with more labor saving, thereby improving the convenience and efficiency of maintenance.

[0090] Among them, the electric lifting platform 50 also includes an extreme position sensor, which is used to detect whether the load-bearing platform 53 moves to a safe distance from the three-axis heavy-load positioner 20. The three-axis heavy-load positioner 20 can only move when the load-bearing platform 53 moves to a safe distance from the three-axis heavy-load positioner 20.

[0091] In this embodiment, the limit position sensor is used to detect whether the movement of the bearing platform 53 is in place. When the bearing platform 53 is far away from the electric wheel 100 and reaches the farthest end, the three-axis heavy-duty positioner 20 can be turned over; when the bearing platform 53 is close to the electric wheel 100 and reaches the nearest end, the three-axis heavy-duty positioner 20 cannot be turned over, lifted or rotated. The limit position sensor can ensure that a safe distance is maintained between the bearing platform 53 and the three-axis heavy-duty positioner 20 to prevent collisions, facilitate manual maintenance operations, and ensure the safety of operators and equipment. The detection of the limit position sensor reduces the manual judgment and measurement required by the operator, reduces errors caused by human factors, and thus reduces safety hazards.

[0092] like Figure 1 As shown, the disassembly and assembly assisting device 60 includes a first assisting arm 61, a hydraulic wrench, a second assisting arm 62 and an electric wrench. The first assisting arm 61 is installed on the electric lifting platform 50, the hydraulic wrench is installed at the end of the first assisting arm 61, the second assisting arm 62 is installed on the electric lifting platform 50, and the electric wrench is installed at the end of the second assisting arm 62.

[0093] In this embodiment, the arrangement of the first booster arm 61 and the second booster arm 62 enables the wrench to flexibly reach different working positions and cover a larger working range. The combined use of the booster arm and the wrench reduces the force required by the operator to manually tighten or loosen the bolts, thereby reducing the labor intensity. In addition, the hydraulic wrench and the electric wrench can precisely control the torque, ensuring that the bolts are tightened or loosened evenly and accurately, avoiding damage caused by uneven torque.

[0094] like Figure 1As shown, the electric wheel maintenance system for mining trucks also includes a waste oil recovery device 80, which includes an oil barrel and a drive pump assembly. The drive pump assembly is used to suck the waste oil in the electric wheel 100 located on the three-axis heavy-load positioner 20 into the oil barrel. The electric wheel maintenance system for mining trucks also includes an electric control system 90, and the three-axis heavy-load positioner 20, the electric translation platform 30, the disassembly and assembly robot 40, and the electric lifting platform 50 are all electrically connected to the electric control system 90.

[0095] In this embodiment, after the maintenance work is completed, the three-axis heavy-duty positioner 20 rotates the electric wheel 100 by 90°, then opens the drive pump assembly, sucks out the oil in the electric wheel 100 through the waste oil recovery device 80, discharges the sucked oil into the oil barrel through the pipeline, and finally treats it centrally. The waste oil recovery device 80 can effectively prevent waste oil from leaking into the environment and reduce pollution to the surrounding environment. The collected waste oil can also be processed and reused to reduce waste of resources. Moreover, the electronic control system can realize unified control of multiple equipment such as the three-axis heavy-duty positioner 20, the electric translation platform 30, the disassembly and assembly robot 40, and the electric lifting platform 50, thereby improving operating efficiency.

[0096] The electric wheel maintenance system for mining trucks provided in the present application realizes all-round adjustment and automatic disassembly and assembly of the electric wheel 100 by integrating a three-axis heavy-duty positioner 20, an electric translation platform 30, a disassembly and assembly robot 40, an electric lifting platform 50 and a disassembly and assembly assisting device 60, thereby improving the maintenance efficiency and safety. The automated equipment in the electric wheel maintenance system for mining trucks reduces manual operation and labor intensity. At the same time, through precise positioning and control, the accuracy and reliability of the disassembly and assembly process are ensured. In addition, the setting of the waste oil recovery device 80 effectively avoids the leakage of waste oil during the maintenance process and protects the environment.

[0097] Moreover, compared with the current manual overall disassembly and assembly method, the electric wheel maintenance system for mining trucks provided by the present application has the following advantages and benefits:

[0098] 1. Develop an electric three-axis heavy-duty positioner 20 that is combined with a disassembly and assembly robot 40. The disassembly and assembly robot 40 can control the three-axis heavy-duty positioner 20 through the electric control system 90 to automatically complete the flipping, rotation and lifting requirements. The electric wheel 100 has a smooth transmission during the flipping process, and the operation is safe and efficient.

[0099] 2. By disassembling and assembling the bolts through the disassembly and assembly of the power assist device 60 and the hydraulic wrench carried at the end of the power assist arm, the work intensity of the employees can be reduced. The power assist arm is a pneumatic suspension arm with an operating force of less than 3N. The operator can easily move the hydraulic wrench to the designated bolt position for disassembly and assembly.

[0100] 3. The operator can control the electric translation platform 30, the electric lifting platform 50 and the three-axis heavy-load positioner 20 through the electric control system 90 and adjust them to appropriate positions to facilitate the disassembly and assembly of the electric wheel 100.

[0101] The above is only an optional embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0102] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0103] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of this solution. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being only exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0104] In the description of this scheme, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing this scheme and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the scope of protection of this scheme; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0105] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0106] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this scheme.

Claims

1. A mining truck electric wheel maintenance system, characterized in that: The invention comprises a three-axis heavy-load positioner (20), an electric translation platform (30), a ground rail mechanism (11), a disassembly and assembly robot (40), an electric lifting platform (50) and a disassembly and assembly assisting device (60); the three-axis heavy-load positioner (20) comprises a flipping mechanism (110), a lifting mechanism (120) and a slewing mechanism (130); the flipping mechanism (110) is installed on a foundation (10); the lifting mechanism (120) is installed on the flipping mechanism (110); the slewing mechanism (130) is installed on the lifting mechanism (120); the slewing mechanism (130) carries an electric wheel (100) to be repaired, wherein the slewing mechanism (130) is used to drive the electric wheel (100) to rotate along a vertical center line, the lifting mechanism (120) is used to drive the electric wheel (100) to rise and fall, and the flipping mechanism (110) is used to drive the electric wheel (100) to rotate along a horizontal center line; The electric translation platform (30) is horizontally movable and arranged on the foundation (10), the electric translation platform (30) is used to carry an operator, the ground rail mechanism (11) is installed on the foundation, the disassembly and assembly robot (40) is installed on the ground rail mechanism (11) so as to be integrally translated through the ground rail mechanism (11), the disassembly and assembly robot (40) is used to disassemble and assemble the electric wheel (100) located on the three-axis heavy-load positioner (20); the electric lifting platform (50) is located on a side of the three-axis heavy-load positioner (20) away from the electric translation platform (30), the electric lifting platform (50) is escalably arranged on the foundation (10), the electric lifting platform (50) is used to carry an operator, the disassembly and assembly assisting device (60) is installed on the electric lifting platform (50), the disassembly and assembly assisting device (60) is used for the operator to disassemble and assemble the electric wheel (100).

2. The mining truck electric wheel maintenance system according to claim 1 is characterized in that: The flipping mechanism (110) comprises a fixed support (111) and a flipping assembly (112), wherein the fixed support (111) is fixed to a foundation (10), and the flipping assembly (112) is rotatably arranged on the fixed support (111); the lifting mechanism (120) comprises a connecting assembly (121) and a lifting assembly (122), wherein the connecting assembly (121) is installed on the flipping assembly (112), and the lifting assembly (122) is liftably installed on the connecting assembly (121); the slewing mechanism (130) comprises a lifting support (131), a rotating assembly (132) and a locking structure (133), the lifting bracket (131) is installed on the lifting bracket (122), the rotating assembly (132) is rotatably arranged on the lifting bracket (131), the rotation center line of the rotating assembly (132) is arranged vertically, the rotating assembly (132) is used to carry the electric wheel (100), the locking structure (133) is arranged on the rotating assembly (132), and the locking structure (133) is used to lock the electric wheel (100) to the rotating assembly (132).

3. The electric wheel maintenance system for mining trucks according to claim 2 is characterized in that: The flip assembly (112) includes a flip bearing (116) having external teeth, and the flip mechanism (110) also includes a flip motor (113) mounted on the fixed bracket (111), and the output shaft of the flip motor (113) is meshed with the external teeth of the flip bearing (116) through a gear; The rotary assembly (132) includes a rotary bearing with external teeth, and the rotary mechanism (130) further includes a rotary motor (135) mounted on the lifting bracket (131), wherein the output shaft of the rotary motor (135) meshes with the external teeth of the rotary bearing via a gear.

4. The mining truck electric wheel maintenance system according to claim 2 is characterized in that: The connecting assembly (121) comprises a matching nut (1211), wherein a ball is arranged inside the matching nut (1211); the lifting assembly (122) comprises a lifting frame (123), a lifting screw rod (124) and a lifting motor (125); the lifting screw rod (124) and the lifting motor (125) are both installed on the lifting frame (123); the lifting screw rod (124) and the matching nut (1211) cooperate; the lifting motor (125) drives the lifting screw rod (124) to rotate; the lifting screw rod (124) drives the lifting frame (123) to rise and fall while rotating; and the rotary mechanism (130) rises and falls along with the lifting frame (123).

5. The mining truck electric wheel maintenance system according to claim 2 is characterized in that: The slewing mechanism (130) further comprises a plurality of tooling plates (140) of different sizes, any one of the tooling plates (140) being detachably mounted on the slewing assembly (132), the tooling plate (140) being used to connect with an electric wheel (100) of matching size so as to mount the electric wheel (100) on the slewing assembly (132); the mining truck electric wheel maintenance system further comprises a tooling frame (70), the tooling frame (70) being used to place the tooling plate (140).

6. The mining truck electric wheel maintenance system according to claim 1, characterized in that: The disassembly and assembly robot (40) comprises a six-axis industrial robot and a hydraulic disassembly and assembly mechanism. The six-axis industrial robot is installed on the electric translation platform (30). The hydraulic disassembly and assembly mechanism is installed on the six-axis industrial robot so that the six-axis industrial robot drives the hydraulic disassembly and assembly mechanism to move. The hydraulic disassembly and assembly mechanism is used to disassemble and assemble bolts on the electric wheel (100) of the three-axis heavy-load positioner (20).

7. The mining truck electric wheel maintenance system according to claim 1, characterized in that: The electric lifting platform (50) comprises a movable track (51), a scissor mechanism (52) and a bearing platform (53); the scissor mechanism (52) is horizontally movably arranged on the movable track (51); the bearing platform (53) is arranged at the top of the scissor mechanism (52); the scissor mechanism (52) is used to drive the bearing platform (53) to rise and fall; and the disassembly and assembly assisting device (60) is installed on the bearing platform (53).

8. The mining truck electric wheel maintenance system according to claim 7, characterized in that: The electric lifting platform (50) also includes a limit position sensor, which is used to detect whether the bearing platform (53) moves to a safe distance from the three-axis heavy-load positioner (20). The three-axis heavy-load positioner (20) can only move when the bearing platform (53) moves to a safe distance from the three-axis heavy-load positioner (20).

9. The mining truck electric wheel maintenance system according to claim 1, characterized in that: The disassembly and assembly assisting device (60) comprises a first assisting arm (61), a hydraulic wrench, a second assisting arm (62) and an electric wrench; the first assisting arm (61) is mounted on the electric lifting platform (50); the hydraulic wrench is mounted on the end of the first assisting arm (61); the second assisting arm (62) is mounted on the electric lifting platform (50); and the electric wrench is mounted on the end of the second assisting arm (62).

10. The mining truck electric wheel maintenance system according to claim 1, characterized in that: The mining truck electric wheel maintenance system also includes a waste oil recovery device (80), the waste oil recovery device (80) includes an oil barrel and a drive pump assembly, the drive pump assembly is used to suck the waste oil in the electric wheel (100) located on the three-axis heavy-load positioner (20) into the oil barrel, and the mining truck electric wheel maintenance system also includes an electric control system (90), the three-axis heavy-load positioner (20), the electric translation platform (30), the disassembly and assembly robot (40), and the electric lifting platform (50) are all electrically connected to the electric control system (90).

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