Pure electric monorail crane vehicle

Abstract

The application relates to the technical field of monorail crane vehicles, and discloses a pure electric monorail crane vehicle which comprises a cab, an electric drive module, a monorail crane main machine and a battery car assembly; the electric drive module is connected to the rear end of the cab through a connecting piece; the monorail crane main machine is connected to the rear end of the electric drive module through a connecting piece; and the battery car assembly is connected to the rear end of the monorail crane main machine through a connecting piece; the vehicle can omit a complete set of hydraulic system part, simplify the structure, reduce equipment cost and maintenance cost, completely remove the loss in the energy conversion process, and increase the endurance capacity; the pure electric structure makes the whole machine control more accurate; elements such as brake electric push rods, clamping electric push rods, electromagnets and driving motors can realize closed-loop control, real-time feedback of driving data and high intelligent integration; the pure electric structure is controlled by a whole machine control box, the operation is simple and convenient, the response is rapid, the structure is simple, and the failure rate is low.

Description

Technical Field

[0001] This invention relates to the field of monorail locomotive technology, specifically to a pure electric monorail locomotive. Background Technology

[0002] As safety requirements for diesel-powered monorail cranes in coal mines become increasingly stringent, mines are gradually replacing them with lithium-ion battery-powered monorail cranes. However, the drive unit and battery carriage within the lithium-ion battery-powered monorail crane still require hydraulic power for operation.

[0003] The existing technical solution involves using an explosion-proof motor to drive a hydraulic pump station, which brings hydraulic oil from the hydraulic tank into the overall hydraulic system to provide hydraulic pressure. The hydraulic directional valve assembly controls the clamping and braking cylinders on the drive unit, controlling the drive wheels to clamp the rails to reduce slippage and providing power to the entire machine. When the lithium battery needs to be lowered for maintenance or replacement, a hydraulic hoist on the battery cart is hydraulically controlled to lower the battery to the ground, and then raised again after maintenance or replacement. This solution requires hydraulic control of the clamping, braking, and battery lifting of the entire machine. The multiple hydraulic circuits connected in series result in imprecise control, high overall cost, and difficult maintenance. The machine's hoses are cumbersome, aesthetically unappealing, and prone to incorrect connections. Significant energy loss during energy conversion affects the monorail's range. Therefore, a pure electric monorail locomotive is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a pure electric monorail crane to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pure electric monorail crane locomotive, comprising a cab, an electric drive module, a monorail crane main unit, and a battery vehicle assembly, wherein the electric drive module is connected to the rear end of the cab via a connector, the monorail crane main unit is connected to the rear end of the electric drive module via a connector, and the battery vehicle assembly is connected to the rear end of the monorail crane main unit via a connector. The driver's cab is used for the driver to operate and ride in; The electric drive module is used to provide driving force and braking force for the whole machine; The monorail crane host is used for the control of the whole machine and the management of battery charging and discharging; The battery vehicle assembly is used to carry the lithium battery and provide protection for the lithium battery.

[0006] Preferably, the cab described above is equipped with an operation module, a driving data detection module, and a video monitoring module. The operation module is used for the operation and travel of the monorail crane locomotive; The driving data detection module is used for detection during the driving process of the monorail crane locomotive; The video monitoring module is used to monitor the driving process of the monorail crane.

[0007] Preferably, the electric drive module described above includes a brake electric push rod, two drive wheels, two drive motors, a clamping electric push rod, a brake slipper, and an electromagnet. The brake electric actuator is used to move the rocker arm connected to the brake slipper; The drive wheels are used to drive the monorail crane to move on the track; The drive motor is used to drive the drive wheel to move on the track; The clamping electric actuator is used to connect the mounting bases of the two drive motors; The brake slipper is used for braking monorail crane locomotives; The electromagnet is used to fix the brake slipper rocker arm.

[0008] Preferably, the monorail crane main unit described above includes an overspeed detection device and a whole machine control box; The overspeed detection device is used to detect the speed of the monorail crane locomotive; The overall control box is used to control the operation of the monorail crane.

[0009] Preferably, the aforementioned battery vehicle assembly includes an explosion-proof electric hoist, an explosion-proof lithium battery, a lifting chain, an tilt sensor, a weight sensor, and an installation assembly. The lifting chain is mounted on the explosion-proof electric hoist, the weight sensor is mounted at one end of the lifting chain, the installation assembly is mounted at one end of the weight sensor, the explosion-proof lithium battery is mounted below the installation assembly, and the tilt sensor is mounted on one side of the installation assembly.

[0010] Preferably, the above-mentioned installation assembly includes a mounting frame, two fixed shafts and a connecting frame. The two fixed shafts are respectively fixedly connected to both ends of the mounting frame. The connecting frame is movably sleeved on the outside of the fixed shafts. A guardrail is fixedly connected to one side of the two connecting frames. Limit blocks are fixedly connected to both ends of the mounting frame between the two fixed shafts. A limit component is provided at one end of the fixed shaft.

[0011] Preferably, the aforementioned limiting assembly includes a fixed plate, a plug, and an L-shaped limiting post. The fixed plate is fixedly sleeved on the outside of the fixed shaft, the plug is movably inserted into one end of the fixed shaft, the L-shaped limiting post is fixedly connected to one end of the plug, the fixed plate is fixedly sleeved on the outside of the fixed shaft and located on the outside of the connecting frame, and a tension spring is movably sleeved on the outside of the fixed shaft.

[0012] Preferably, one end of the tension spring is fixedly connected to one side of the fixing plate, and the other end of the tension spring is fixedly connected to one side of the L-shaped limiting post.

[0013] Preferably, a long through groove is provided on one side of the connecting frame, the fixing shaft is located inside the long through groove, and one end of the L-shaped limiting post is inserted into the long through groove.

[0014] Compared with the prior art, the present invention, employing the above technical solution, has the following technical effects: 1. The locomotive of this invention can eliminate the entire hydraulic system, simplifying the structure, reducing equipment and maintenance costs, completely eliminating energy losses during the energy conversion process, and increasing range; the pure electric structure makes the whole machine control more precise, and components such as brake electric actuators, clamping electric actuators, electromagnets, and drive motors can achieve closed-loop control, providing real-time feedback of driving data, with a high degree of intelligent integration; the pure electric structure is controlled by the whole machine control box, which is easy to operate, responds quickly, has a simple structure, and has a low failure rate.

[0015] 2. This invention provides protection for the explosion-proof lithium battery by shielding it from the outside. By flipping the protective railing upwards, the railing moves two connecting brackets to the outside of the fixed shaft, causing the connecting brackets to move to a horizontal position. Pushing the connecting brackets downwards moves the fixed shaft to the other end of the long slot, and the top of the connecting bracket abuts against one side of the limiting block, thus completing the support of the protective railing, which facilitates the replacement or maintenance of the explosion-proof lithium battery. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the cab structure of the present invention; Figure 3 This is a schematic diagram of the electromagnet structure of the present invention; Figure 4 This is a schematic diagram of the drive motor structure of the present invention; Figure 5 This is a schematic diagram of the overall control box structure of the present invention; Figure 6 This is a schematic diagram of the explosion-proof electric hoist structure of the present invention; Figure 7 This is a schematic diagram of the installation component structure of the present invention; Figure 8 This is a schematic diagram of the protective fence structure of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram of area A in the middle; Figure 10 This is a schematic diagram of the L-shaped limiting post structure of the present invention.

[0018] Explanation of reference numerals in the attached diagram: 1. Driver's cab; 11. Operation module; 12. Driving data detection module; 13. Video monitoring module; 2. Electric drive module; 21. Brake electric actuator; 22. Drive motor; 23. Drive wheel; 24. Clamping electric actuator; 25. Brake slipper; 26. Electromagnet; 3. Monorail crane main unit; 31. Overspeed detection device; 32. Overall control box; 4. Battery vehicle assembly; 41. Explosion-proof electric hoist; 42. Explosion-proof lithium battery; 43. Lifting chain; 44. Tilt sensor; 45. Weight sensor; 46. Mounting assembly; 461. Fixed shaft; 462. Connecting frame; 463. Long through slot; 464. Guardrail; 465. Limit block; 466. Fixing plate; 467. Insert post; 468. L-shaped limit post; 469. Tension spring; 4610. Mounting bracket. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0021] Example Please see Figure 1-10 The present invention provides a technical solution: a pure electric monorail crane locomotive, including a cab 1, an electric drive module 2, a monorail crane host 3 and a battery vehicle assembly 4. The electric drive module 2 is connected to the rear end of the cab 1 through a connector, the monorail crane host 3 is connected to the rear end of the electric drive module 2 through a connector, and the battery vehicle assembly 4 is connected to the rear end of the monorail crane host 3 through a connector. Driver's cab 1, used for the driver's operation and seating; Electric drive module 2 is used to provide driving force and braking force for the whole machine; The main unit 3 of the monorail crane is used for the control of the entire machine and the management of battery charging and discharging. Battery vehicle component 4 is used to carry the lithium battery and provide protection for the lithium battery.

[0022] The interior of the driver's cab 1 is equipped with an operation module 11, a driving data detection module 12, and a video monitoring module 13. Operation module 11 is used for the operation and travel of the monorail crane locomotive; The driving data detection module 12 is used for detection during the driving process of the monorail crane locomotive; The video monitoring module 13 is used to monitor the driving process of the monorail crane.

[0023] The electric drive module 2 includes a brake electric actuator 21, two drive wheels 23, two drive motors 22, a clamping electric actuator 24, a brake slipper 25, and an electromagnet 26. A permanent magnet synchronous motor 22 is used as the drive motor, driving the two rubber drive wheels 23. The clamping electric actuator 24 connects to the mounting bases of the two drive motors 22, and the contraction of the clamping electric actuator 24 causes the drive wheels 23 to grip the track. The brake electric actuator 21 connects to the rocker arms on both sides of the brake slipper 25. When the locomotive starts, the brake electric actuator 21 contracts, compressing the spring and locking it via the electromagnet 26. When the locomotive needs to park, the electromagnet 26 is de-energized, the spring instantly returns to its original shape, and the brake slipper 25 engages, achieving the braking effect. The brake electric actuator 21 is used to drive the rocker arm connected to the brake slipper 25 to move, and a spring is provided on the outer side of the brake electric actuator 21. Drive wheel 23 is used to drive the monorail crane to move on the track; Drive motor 22 is used to drive drive wheel 23 to move on the track; The clamping electric actuator 24 is used to connect the mounting base of the two drive motors 22; Brake slipper 25, used for braking monorail crane locomotives; Electromagnet 26 is used to fix the rocker arm of brake shoe 25.

[0024] The monorail crane main unit 3 includes an overspeed detection device 31 and a control box 32. The control box 32 is used for centralized control of the four major systems of the crane: drive, clamping, braking, and lifting. Electrical signals are transmitted, and each electric component responds quickly and precisely. It can collect the crane's operating information and provide real-time feedback to the cab 1, allowing the driver to understand the crane's operating status and prevent accidents. The monorail crane main unit 3 is equipped with an overspeed detection device 31, which detects the locomotive's running speed through a dual detection device consisting of an encoder and a mechanical centrifugal device. When the actual running speed of the locomotive slightly exceeds the set speed, the encoder outputs the real-time speed to the locomotive control box, which then controls the drive motor 22 via the overall control box 32, enabling the locomotive to achieve "automatic deceleration" or "automatic stopping". When the actual running speed of the locomotive exceeds the set speed by 15%, the mechanical centrifugal device triggers the emergency stop device. The braking electromagnet 26 is de-energized directly without going through the overall control box 32, the brake spring returns to its original position, and the locomotive comes to an emergency stop. Overspeed detection device 31 is used to detect the speed of a monorail crane locomotive; The overall control box 32 is used to control the operation of the monorail crane.

[0025] The battery vehicle assembly 4 includes an explosion-proof electric hoist 41, an explosion-proof lithium battery 42, a lifting chain 43, an angle sensor 44, a weight sensor 45, and an installation assembly 46. The lifting chain 43 is mounted on the explosion-proof electric hoist 41, the weight sensor 45 is mounted at one end of the lifting chain 43, the installation assembly 46 is mounted at one end of the weight sensor 45, the explosion-proof lithium battery 42 is mounted below the installation assembly 46, and the angle sensor 44 is mounted on one side of the installation assembly 46. The current output from the whole machine control box 32 drives the explosion-proof electric hoist 41 to operate, and the explosion-proof lithium battery 42 at the bottom of the installation assembly 46 is lifted by the lifting chain 43. After the explosion-proof lithium battery 42 is raised to the appropriate position, it is fixed by inserting a pin. When performing routine maintenance or replacing the spare battery, simply remove the pin and operate the operation module 11 in the cab 1 to start the explosion-proof electric hoist 41 and lower the explosion-proof lithium battery 42 to the ground. When the locomotive is heavily loaded and passes through a steep downhill section, the locomotive uses the lifting beam weight sensor 45 and tilt sensor 44 to determine the current working condition. If the drive wheel 23 is prone to slippage, the locomotive automatically activates the anti-slippage function under the control of the overall control box 32. This increases the tightening stroke of the clamping electric push rod 24, thereby increasing the normal pressure of the drive wheel 23 on the rail and increasing friction to prevent slippage. When passing through a wet and slippery section of the track, the friction between the rubber drive wheel 23 and the rail web decreases, making slippage more likely. In this case, the anti-slippage function can be activated in advance via the button on the operating module 11 inside the cab 1. To protect the explosion-proof lithium battery 42, the mounting assembly 46 includes a mounting bracket 4610, two fixed shafts 461, and connecting brackets 462. The two fixed shafts 461 are fixedly connected to both ends of the mounting bracket 4610, and the connecting brackets 462 are movably sleeved on the outside of the fixed shafts 461. Protective railings 464 are fixedly connected to the two connecting brackets 462 on one side. Limit blocks 465 are fixedly connected to both ends of the mounting bracket 4610 between the two fixed shafts 461. A limit assembly is provided at one end of each fixed shaft 461. The protective railings 464 shield the explosion-proof lithium battery 42. The outer side of the battery 42 provides protection. When the explosion-proof lithium battery 42 needs to be disassembled, the limiting component is removed, and then the protective railing 464 is flipped upward. The protective railing 464 drives the two connecting brackets 462 to move outside the fixed shaft 461, so that the connecting brackets 462 move to a horizontal position. The connecting brackets 462 are pushed downward to move, and the fixed shaft 461 moves to the other end of the long through groove 463. The top of the connecting bracket 462 abuts against one side of the limiting block 465, thus completing the support of the protective railing 464, so as to facilitate the replacement or maintenance of the explosion-proof lithium battery 42.

[0026] To limit the movement of the guardrail 464 in its protected state, the limiting assembly includes a fixed plate 466, a pin 467, and an L-shaped limiting post 468. The fixed plate 466 is fixedly sleeved on the outside of the fixed shaft 461. The pin 467 is movably inserted into one end of the fixed shaft 461. The L-shaped limiting post 468 is fixedly connected to one end of the pin 467. The fixed plate 466 is fixedly sleeved on the outside of the fixed shaft 461 and is located outside the connecting frame 462. A tension spring 469 is movably sleeved on the outside of the fixed shaft 461. One end of the tension spring 469 is fixedly connected to one side of the fixed plate 466, and the other end of the tension spring 469 is fixedly connected to the L-shaped limiting post 468. On one side, a long through groove 463 is provided on one side of the connecting frame 462. The fixed shaft 461 is located inside the long through groove 463, and one end of the L-shaped limiting post 468 is inserted into the long through groove 463. By inserting one end of the L-shaped limiting post 468 into the long through groove 463, the position of the connecting frame 462 can be limited. When the position of the connecting frame 462 is adjusted, the L-shaped limiting post 468 is pulled to move at the same time. At this time, the insert post 467 moves inside the fixed shaft 461, the tension spring 469 is in a stretched state, and one end of the L-shaped limiting post 468 is disengaged from the long through groove 463, so the position of the connecting frame 462 can be adjusted.

[0027] In summary, the locomotive of this invention eliminates the need for a complete hydraulic system, simplifying the structure, reducing equipment and maintenance costs, completely eliminating energy losses during energy conversion, and increasing range. The pure electric structure makes the overall machine control more precise, and components such as the brake electric actuator 21, clamping electric actuator 24, electromagnet 26, and drive motor 22 can achieve closed-loop control, providing real-time feedback of driving data and exhibiting high levels of intelligent integration. The pure electric structure is controlled by the overall machine control box 32, which is easy to operate, responds quickly, has a simple structure, and a low failure rate. The protective barrier 464 provides protection to the outside of the explosion-proof lithium battery 42. By flipping the protective barrier 464 upward, it moves the two connecting brackets 462 to the outside of the fixed shaft 461, so that the connecting brackets 462 move to a horizontal position. Pushing the connecting brackets 462 downward moves the fixed shaft 461 to the other end of the long through groove 463. The top of the connecting bracket 462 abuts against one side of the limiting block 465, thus supporting the protective barrier 464, which facilitates the replacement or maintenance of the explosion-proof lithium battery 42.

[0028] Those skilled in the art will understand that the features described in the various embodiments and / or claims of the present invention can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention can be combined or combined in various ways without departing from the spirit and teachings of the present invention. All such combinations and / or combinations fall within the scope of the present invention.

Claims

1. A pure electric monorail crane, characterized in that: It includes a cab (1), an electric drive module (2), a monorail crane host (3), and a battery vehicle assembly (4). The electric drive module (2) is connected to the rear end of the cab (1) via a connector. The monorail crane host (3) is connected to the rear end of the electric drive module (2) via a connector. The battery vehicle assembly (4) is connected to the rear end of the monorail crane host (3) via a connector. The driver's cab (1) is used for the driver to operate and ride in; The electric drive module (2) is used to provide driving force and braking force for the whole machine; The monorail crane host (3) is used for the control of the whole machine and the management of battery charging and discharging; The battery vehicle assembly (4) is used to carry the lithium battery and provide protection for the lithium battery; The battery vehicle assembly (4) includes an explosion-proof electric hoist (41), an explosion-proof lithium battery (42), a lifting chain (43), an tilt sensor (44), a weight sensor (45), and an installation assembly (46). The lifting chain (43) is mounted on the explosion-proof electric hoist (41), the weight sensor (45) is mounted at one end of the lifting chain (43), the installation assembly (46) is mounted at one end of the weight sensor (45), the explosion-proof lithium battery (42) is mounted below the installation assembly (46), and the tilt sensor (44) is mounted on one side of the installation assembly (46). The mounting assembly (46) includes a mounting frame (4610), two fixed shafts (461) and a connecting frame (462). The two fixed shafts (461) are fixedly connected to both ends of the mounting frame (4610). The connecting frame (462) is movably sleeved on the outside of the fixed shafts (461). A guardrail (464) is fixedly connected to one side of the two connecting frames (462). Limit blocks (465) are fixedly connected to both ends of the mounting frame (4610) between the two fixed shafts (461). A limit component is provided at one end of the fixed shaft (461). The limiting assembly includes a fixing plate (466), a plug (467), and an L-shaped limiting post (468). The fixing plate (466) is fixedly sleeved on the outside of the fixing shaft (461). The plug (467) is movably inserted into one end of the fixing shaft (461). The L-shaped limiting post (468) is fixedly connected to one end of the plug (467). The fixing plate (466) is fixedly sleeved on the outside of the fixing shaft (461) and is located on the outside of the connecting frame (462). A tension spring (469) is movably sleeved on the outside of the fixing shaft (461). One end of the tension spring (469) is fixedly connected to one side of the fixing plate (466), and the other end of the tension spring (469) is fixedly connected to one side of the L-shaped limiting post (468). The connecting frame (462) has a long through groove (463) on one side, the fixed shaft (461) is located inside the long through groove (463), and one end of the L-shaped limiting post (468) is inserted into the long through groove (463).

2. The pure electric monorail crane vehicle according to claim 1, characterized in that: The cab (1) is equipped with an operation module (11), a driving data detection module (12) and a video monitoring module (13). The operation module (11) is used for the operation and travel of the monorail crane locomotive; The driving data detection module (12) is used for detection during the driving process of the monorail crane locomotive; The video monitoring module (13) is used to monitor the driving process of the monorail crane.

3. The pure electric monorail crane vehicle according to claim 1, characterized in that: The electric drive module (2) includes a braking electric push rod (21), two drive wheels (23), two drive motors (22), a clamping electric push rod (24), a braking slipper (25), and an electromagnet (26). The brake electric actuator (21) is used to drive the rocker arm connected to the brake slipper (25) to move; The drive wheel (23) is used to drive the monorail crane to move on the track; The drive motor (22) is used to drive the drive wheel (23) to move on the track; The clamping electric actuator (24) is used to connect the mounting bases of the two drive motors (22); The brake slipper (25) is used for braking the monorail locomotive; The electromagnet (26) is used to fix the rocker arm of the brake slipper (25).

4. The pure electric monorail crane vehicle according to claim 1, characterized in that: The monorail crane main unit (3) includes an overspeed detection device (31) and a whole machine control box (32); The overspeed detection device (31) is used to detect the speed of the monorail crane locomotive; The overall control box (32) is used to control the operation of the monorail crane.

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