Pure electric monorail crane locomotive

Abstract

The invention relates to the technical field of monorail cranes, and discloses a pure electric monorail crane which comprises a cab, an electric driving module, a monorail crane main machine and a battery car assembly, the electric driving module is connected to the rear end of the cab through a connecting piece, and the monorail crane main machine is connected to the rear end of the electric driving module through a connecting piece; the battery vehicle assembly is connected to the rear end of the monorail crane main machine through a connecting piece. According to the locomotive, a whole set of hydraulic system part can be omitted, the structure is simplified, the equipment cost and the maintenance cost are reduced, the loss in the energy conversion process is completely removed, and the cruising ability is increased; the whole machine control is more accurate due to the pure electric structure, the braking electric push rod, the clamping electric push rod, the electromagnet, the driving motor and other elements can achieve closed-loop control, running data are fed back in real time, and the intelligent integration degree is high; the pure electric structure is controlled by the whole machine control box, operation is easy and convenient, response is rapid, the structure is simple, and the failure rate is low.

Description

Technical Field

[0001] The present invention relates to the technical field of single-track hoisting locomotives, and particularly to a pure-electric single-track hoisting locomotive. Background Technique

[0002] With the increasing requirements for the exhaust emissions of diesel single-track hoists in coal mine safety production, coal mine operators have gradually replaced diesel single-track hoists with lithium battery single-track hoists. However, components such as the drive unit and battery car inside the lithium battery single-track hoist still need to operate through hydraulic power.

[0003] The existing technical solution at present is to drive a hydraulic pump station through an explosion-proof motor, bring the hydraulic oil in the hydraulic oil tank into the whole machine's oil circuit system, and provide hydraulic pressure. Through the hydraulic reversing valve group of the whole machine, the clamping cylinders and braking cylinders on the drive unit are controlled to control the clamping of the drive wheels on the track to reduce slipping and provide the braking force of the whole machine. When it is necessary to lower the lithium battery for maintenance or replacement, it is necessary to hydraulically control the hydraulic hoist on the battery car to lower the battery to the ground, and then lift it again after the maintenance or replacement is completed. This solution requires hydraulic control of the whole machine's clamping, braking and battery lifting. Multiple groups of hydraulic oil circuits are connected in series, the control is not precise enough, and the cost of the whole machine is relatively high, and the maintenance is difficult. The hoses of the whole machine are redundant, the aesthetics is poor, and it is easy to connect wrongly. The energy conversion process has large losses, affecting the endurance of the single-track hoist. Therefore, a pure-electric single-track hoisting locomotive is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a pure-electric single-track hoisting locomotive to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A pure-electric single-track hoisting locomotive, including a cab, an electric drive module, a single-track hoist 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 single-track hoist 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 single-track hoist main machine through a connecting piece;

[0006] The cab is used for the driver to operate and ride;

[0007] The electric drive module is used to provide driving force and braking force for the whole machine;

[0008] The single-track hoist main machine is used for the control of the whole machine and the management of battery charging and discharging;

[0009] The battery car assembly is used to carry the lithium battery and provide protection for the lithium battery.

[0010] Preferably, an operation module, a driving data detection module and a video monitoring module are respectively arranged inside the cab;

[0011] The operation module is used for the operation and driving of the single-rail hoist locomotive;

[0012] The driving data detection module is used for detection during the driving of the single-rail hoist locomotive;

[0013] The video monitoring module is used for monitoring during the driving of the single-rail hoist locomotive.

[0014] Preferably, the above-mentioned electric drive module includes a braking electric push rod, two driving wheels, two driving motors, a clamping electric push rod, a braking shoe and an electromagnet;

[0015] The braking electric push rod is used to drive the rocker arm connected to the braking shoe to move;

[0016] The driving wheel is used to drive the single-rail hoist locomotive to move on the track;

[0017] The driving motor is used to drive the driving wheel to move on the track;

[0018] The clamping electric push rod is used to connect the mounting seats of the two driving motors;

[0019] The braking shoe is used for the braking of the single-rail hoist locomotive;

[0020] The electromagnet is used for fixing the rocker arm of the braking shoe.

[0021] Preferably, the above-mentioned single-rail hoist main unit includes an overspeed detection device and an overall machine control box;

[0022] The overspeed detection device is used to detect the speed of the single-rail hoist locomotive;

[0023] The overall machine control box is used to control the operation of the single-rail hoist locomotive.

[0024] Preferably, the above-mentioned battery car assembly includes an explosion-proof electric hoist, an explosion-proof lithium battery, a lifting chain, an inclination sensor, a weight sensor and a mounting assembly. The lifting chain is arranged on the explosion-proof electric hoist. The weight sensor is arranged at one end of the lifting chain. The mounting assembly is arranged at one end of the weight sensor. The explosion-proof lithium battery is installed below the mounting assembly. The inclination sensor is arranged on one side of the mounting assembly.

[0025] Preferably, the above-mentioned mounting 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 outside the fixed shafts. A guardrail is fixedly connected to two of the connecting frames on one side. Limiting blocks are fixedly connected between both ends of the mounting frame and between the two fixed shafts. A limiting assembly is arranged at one end of the fixed shaft.

[0026] Preferably, the above-mentioned limiting component includes a fixing plate, a plug post and an L-shaped limiting post. The fixing plate is fixedly sleeved on the outer side of the fixed shaft. The plug post is movably inserted into one end of the fixed shaft. The L-shaped limiting post is fixedly connected to one end of the plug post. The fixing plate is fixedly sleeved on the outer side of the fixed shaft and is located outside the connecting frame. A tension spring is movably sleeved on the outer side of the fixed shaft.

[0027] Preferably, one end of the above-mentioned 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.

[0028] Preferably, a long through groove is formed on one side of the above-mentioned connecting frame. The fixed shaft is located inside the long through groove. One end of the L-shaped limiting post is inserted into the inside of the long through groove.

[0029] Compared with the prior art, the present invention adopts the above technical solutions and has the following technical effects:

[0030] 1. The locomotive of the present invention can omit the whole set of hydraulic system parts, simplify the structure, reduce the equipment cost and maintenance cost, completely remove the loss in the energy conversion process, and increase the endurance; the pure electric structure makes the whole machine control more accurate. Components such as the braking electric push rod, the clamping electric push rod, the electromagnet, and the driving motor can achieve closed-loop control, and can real-time feedback the driving data, with a high degree of intelligent integration; the pure electric structure is controlled by the whole machine control box, with simple operation, rapid response, simple structure, and low failure rate.

[0031] 2. The present invention can provide protection for the explosion-proof lithium battery by shielding it with a protective fence. At the same time, by flipping up the protective fence, the protective fence drives the two connecting frames to move on the outer side of the fixed shaft, so that the connecting frames move to the horizontal state. By pushing the connecting frames downward, the fixed shaft moves to the other end of the long through groove, and the top of the connecting frame abuts against one side of the limiting block, then the support of the protective fence can be completed, so as to facilitate the replacement or maintenance of the explosion-proof lithium battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 It is a structural schematic diagram of the present invention;

[0034] Figure 2 It is a structural schematic diagram of the cab of the present invention;

[0035] Figure 3Schematic diagram of the electromagnet structure of the present invention;

[0036] Figure 4 Schematic diagram of the drive motor structure of the present invention;

[0037] Figure 5 Schematic diagram of the overall machine control box structure of the present invention;

[0038] Figure 6 Schematic diagram of the explosion-proof electric hoist structure of the present invention;

[0039] Figure 7 Schematic diagram of the installation component structure of the present invention;

[0040] Figure 8 Schematic diagram of the guardrail structure of the present invention;

[0041] Figure 9 For the present invention Figure 8 Schematic diagram of the enlarged structure of area A in;

[0042] Figure 10 Schematic diagram of the L-shaped limit post structure of the present invention.

[0043] Explanation of reference numerals: 1, cab; 11, operation module; 12, driving data detection module; 13, video monitoring module; 2, electric drive module; 21, braking electric push rod; 22, drive motor; 23, drive wheel; 24, clamping electric push rod; 25, braking sliding shoe; 26, electromagnet; 3, monorail crane main unit; 31, overspeed detection device; 32, overall machine control box; 4, battery car assembly; 41, explosion-proof electric hoist; 42, explosion-proof lithium battery; 43, lifting chain; 44, inclination sensor; 45, weight sensor; 46, installation component; 461, fixed shaft; 462, connecting frame; 463, long through groove; 464, guardrail; 465, limit block; 466, fixing plate; 467, insertion post; 468, L-shaped limit post; 469, tension spring; 4610, mounting bracket. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of this application. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that this application can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in this application.

[0046] Embodiment

[0047] Please refer to Figures 1-10 , the present invention provides a technical solution: a pure electric single-rail hoist locomotive, including a cab 1, an electric drive module 2, a single-rail hoist main unit 3, and a battery car assembly 4. The electric drive module 2 is connected to the rear end of the cab 1 through a connecting member, the single-rail hoist main unit 3 is connected to the rear end of the electric drive module 2 through a connecting member, and the battery car assembly 4 is connected to the rear end of the single-rail hoist main unit 3 through a connecting member;

[0048] The cab 1 is used for the driver to operate and ride;

[0049] The electric drive module 2 is used to provide driving force and braking force for the whole machine;

[0050] The single-rail hoist main unit 3 is used for the control of the whole machine and the management of battery charging and discharging;

[0051] The battery car assembly 4 is used to carry lithium batteries and provide protection for the lithium batteries.

[0052] Inside the cab 1, an operation module 11, a driving data detection module 12, and a video monitoring module 13 are respectively arranged;

[0053] The operation module 11 is used for the operation and driving of the single-rail hoist locomotive;

[0054] The driving data detection module 12 is used for the detection during the driving process of the single-rail hoist locomotive;

[0055] The video monitoring module 13 is used for the monitoring during the driving process of the single-rail hoist locomotive.

[0056] The electric drive module 2 includes a braking electric push rod 21, two driving wheels 23, two driving motors 22, a clamping electric push rod 24, a braking shoe 25 and an electromagnet 26; a permanent magnet synchronous integrated machine is used as the driving motor 22 to drive the two rubber driving wheels 23; the clamping electric push rod 24 is used to connect the mounting seats of the two driving motors 22, and the driving wheels 23 are tightened against the track under the contraction of the clamping electric push rod 24. The braking electric push rod 21 is connected to the rocker arms on both sides of the braking shoe 25. When the locomotive starts, the braking electric push rod 21 contracts, compresses the spring, and is locked by the suction of the electromagnet 26; when the locomotive needs to park in place, the electromagnet 26 loses power, the spring instantly returns to its original shape, and the braking shoe 25 brakes to achieve the braking effect;

[0057] The braking electric push rod 21 is used to drive the rocker arm connected to the braking shoe 25 to move, and a spring is arranged on the outside of the braking electric push rod 21;

[0058] The driving wheel 23 is used to drive the single rail crane locomotive to move on the track;

[0059] The driving motor 22 is used to drive the driving wheel 23 to move on the track;

[0060] The clamping electric push rod 24 is used to connect the mounting seats of the two driving motors 22;

[0061] The braking shoe 25 is used for braking the single rail crane locomotive;

[0062] The electromagnet 26 is used for fixing the rocker arm of the braking shoe 25.

[0063] The single rail crane main unit 3 includes an overspeed detection device 31 and an overall machine control box 32; the overall machine control box 32 is used for centralized control of the four major systems of the overall machine drive, clamping, braking, and lifting. For the transmission of electrical signals, each electric component responds quickly and is controlled precisely, and can collect the driving information of the overall machine and feedback it to the cab 1 in real time; it is convenient for the driver to understand the running state of the locomotive and prevent accidents;

[0064] The single rail crane main unit 3 is equipped with an overspeed detection device 31, which detects the running speed of the locomotive through a dual detection device of an encoder and a mechanical centrifugal device. When the actual running speed of the locomotive slightly exceeds the set speed, the real-time speed is output to the locomotive control box through the encoder, and the driving motor 22 is controlled through the overall machine control box 32, and the locomotive realizes "automatic deceleration" or "automatic traction stop". When the actual running speed of the locomotive exceeds the set speed by 15%, the mechanical centrifugal device triggers the emergency stop device, and the braking electromagnet 26 is directly powered off without passing through the overall machine control box 32, the braking spring resumes, and the locomotive stops urgently;

[0065] The overspeed detection device 31 is used to detect the speed of the single rail crane locomotive;

[0066] The whole machine control box 32 is used to control the operation of the single-rail hoist locomotive.

[0067] The battery vehicle assembly 4 includes an explosion-proof electric hoist 41, an explosion-proof lithium battery 42, a lifting chain 43, an inclination sensor 44, a weight sensor 45 and a mounting assembly 46. The lifting chain 43 is arranged on the explosion-proof electric hoist 41. The weight sensor 45 is arranged at one end of the lifting chain 43. The mounting assembly 46 is arranged at one end of the weight sensor 45. The explosion-proof lithium battery 42 is installed below the mounting assembly 46. The inclination sensor 44 is arranged on one side of the mounting assembly 46. The current output by 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 mounting assembly 46 is lifted through the transmission of the lifting chain 43. When the explosion-proof lithium battery 42 rises to a suitable position, a pin is inserted for fixation. When performing daily maintenance or replacing the spare battery, only need to take out 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.

[0068] When the locomotive passes through a steep downhill section under heavy load, the locomotive judges the current working condition through the lifting beam weight sensor 45 and the inclination sensor 44, and it is easy to occur the phenomenon that the driving wheel 23 slips. Under the control of the whole machine control box 32, the locomotive automatically starts the anti-sliding function, increases the tightening stroke of the clamping electric push rod 24, achieves an increase in the positive pressure of the driving wheel 23 on the track, increases the friction force, and plays the role of anti-sliding. When passing through a wet and slippery section of the track, due to the reduction of the friction force between the rubber driving wheel 23 and the track web, it is easy to occur the phenomenon of slipping. At this time, the anti-sliding function can be started in advance by pressing the button of the operation module 11 inside the cab 1.

[0069] In order to provide protection for the explosion-proof lithium battery 42, the mounting assembly 46 includes a mounting frame 4610, two fixed shafts 461 and a connecting frame 462. The two fixed shafts 461 are respectively fixedly connected to both ends of the mounting frame 4610. The connecting frame 462 is movably sleeved outside the fixed shaft 461. A protective fence 464 is fixedly connected to two connecting frames 462 on one side. Limit blocks 465 are fixedly connected between the two fixed shafts 461 at both ends of the mounting frame 4610. A limit assembly is arranged at one end of the fixed shaft 461. The protective fence 464 can provide protection for the explosion-proof lithium battery 42 by blocking outside it. When it is necessary to disassemble the explosion-proof lithium battery 42, by removing the limit assembly and then flipping the protective fence 464 upward, the protective fence 464 drives the two connecting frames 462 to move outside the fixed shaft 461, so that the connecting frames 462 move to a horizontal state. Push the connecting frame 462 downward to move, and the fixed shaft 461 will move to the other end of the long through groove 463. The top of the connecting frame 462 abuts against one side of the limit block 465, and the support of the protective fence 464 can be completed to facilitate the replacement or maintenance of the explosion-proof lithium battery 42.

[0070] In order to limit the guardrail 464 in the protective state, the limiting assembly includes a fixed plate 466, a plug column 467 and an L-shaped limiting column 468. The fixed plate 466 is fixedly sleeved on the outer side of the fixed shaft 461, the plug column 467 is movably inserted into one end of the fixed shaft 461, and the L-shaped limiting column 468 is fixedly connected to one end of the plug column 467. The outer side of the fixed shaft 461 is fixedly sleeved with the fixed plate 466 and is located on the outer side of the connecting frame 462. The outer side of the fixed shaft 461 is movably sleeved with a tension spring 469, 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 column 468. On one side, a long through slot 463 is provided on one side of the connecting frame 462, the fixed shaft 461 is located inside the long through slot 463, and one end of the L-shaped limiting column 468 is inserted into the inside of the long through slot 463; by inserting one end of the L-shaped limiting column 468 into the inside of the long through slot 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 column 468 is pulled to move at the same time, and at this time the plug column 467 moves inside the fixed shaft 461, the tension spring 469 is in a stretched state, and one end of the L-shaped limiting column 468 is disengaged from the inside of the long through slot 463, so that the position of the connecting frame 462 can be adjusted.

[0071] In summary, the locomotive of the present invention can omit the entire hydraulic system, simplify the structure, reduce equipment cost and maintenance cost, completely eliminate the loss in the energy conversion process, and increase endurance; the pure electric structure makes the whole machine control more precise, and the components such as the brake push rod 21, the clamping push rod 24, the electromagnet 26, and the drive motor 22 can realize closed-loop control, and feedback the driving data in real time, with high intelligent integration; the pure electric structure is controlled by the whole machine control box 32, which is easy to operate, quick to respond, simple in structure, and low in failure rate;

[0072] The protection fence 464 is used to block the outside of the explosion-proof lithium battery 42 to provide protection for it. At the same time, by flipping the protection fence 464 upward, the protection fence 464 drives the two connecting frames 462 to move outside the fixed shaft 461, so that the connecting frames 462 move to a horizontal state, and the connecting frames 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 frame 462 contacts one side of the limit block 465, and the support of the protection fence 464 is completed, so that the explosion-proof lithium battery 42 can be replaced or maintained.

[0073] It will be appreciated by those skilled in the art that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / 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 may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

Claims

1. A pure electric single-rail hoist locomotive, characterized in that: It includes a cab (1), an electric drive module (2), a single-rail crane main unit (3) and a battery vehicle assembly (4). The electric drive module (2) is connected to the rear end of the cab (1) through a connecting piece. The single-rail crane main unit (3) is connected to the rear end of the electric drive module (2) through a connecting piece. The battery vehicle assembly (4) is connected to the rear end of the single-rail crane main unit (3) through a connecting piece; The cab (1) is used for the driver to operate and ride; The electric drive module (2) is used to provide driving force and braking force for the whole machine; The single-rail crane main unit (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 lithium batteries and provide protection for lithium batteries.

2. The pure electric single-rail hoist locomotive according to claim 1, characterized in that: An operation module (11), a driving data detection module (12) and a video monitoring module (13) are respectively arranged inside the cab (1); The operation module (11) is used for the operation and driving of the single-rail crane locomotive; The driving data detection module (12) is used for the detection during the driving process of the single-rail crane locomotive; The video monitoring module (13) is used for the monitoring during the driving process of the single-rail crane locomotive.

3. The pure electric single-rail hoist locomotive according to claim 1, characterized in that: The electric drive module (2) includes a braking electric push rod (21), two driving wheels (23), two driving motors (22), a clamping electric push rod (24), a braking shoe (25) and an electromagnet (26); The braking electric push rod (21) is used to drive the rocker arm connected to the braking shoe (25) to move; The driving wheels (23) are used to drive the single-rail crane locomotive to move on the track; The driving motors (22) are used to drive the driving wheels (23) to move on the track; The clamping electric push rod (24) is used to connect the mounting seats of the two driving motors (22); The braking shoe (25) is used for the braking of the single-rail crane locomotive; The electromagnet (26) is used for the fixation of the rocker arm of the braking shoe (25).

4. The pure electric single-rail hoist locomotive according to claim 1, characterized in that: The single-rail 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 single-rail crane locomotive; The whole-machine control box (32) is used to control the operation of the single-rail crane locomotive.

5. The pure electric single-rail hoist locomotive according to claim 1, characterized in that: The battery vehicle assembly (4) includes an explosion-proof electric hoist (41), an explosion-proof lithium battery (42), a lifting chain (43), an inclination sensor (44), a weight sensor (45) and a mounting assembly (46). The lifting chain (43) is arranged on the explosion-proof electric hoist (41). The weight sensor (45) is arranged at one end of the lifting chain (43). The mounting assembly (46) is arranged at one end of the weight sensor (45). The explosion-proof lithium battery (42) is installed below the mounting assembly (46). The inclination sensor (44) is arranged on one side of the mounting assembly (46).

6. The pure electric single-rail hoist locomotive according to claim 5, characterized in that: The installation component (46) includes an installation frame (4610), two fixed shafts (461), and a connecting frame (462). The two fixed shafts (461) are respectively fixedly connected to both ends of the installation frame (4610). The connecting frame (462) is movably sleeved on the outer side of the fixed shaft (461). A guardrail (464) is fixedly connected to two of the connecting frames (462) on one side. Limit blocks (465) are fixedly connected between the two fixed shafts (461) at both ends of the installation frame (4610). A limit component is provided at one end of the fixed shaft (461).

7. The pure electric single-rail hoist locomotive according to claim 6, characterized in that: The limit component includes a fixed plate (466), a plug post (467), and an L-shaped limit post (468). The fixed plate (466) is fixedly sleeved on the outer side of the fixed shaft (461). The plug post (467) is movably inserted into one end of the fixed shaft (461). The L-shaped limit post (468) is fixedly connected to one end of the plug post (467). A fixed plate (466) is fixedly sleeved on the outer side of the fixed shaft (461) and is located outside the connecting frame (462). A tension spring (469) is movably sleeved on the outer side of the fixed shaft (461).

8. The pure electric single-rail hoist locomotive according to claim 7, characterized in that: 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 one side of the L-shaped limit post (468).

9. The pure electric single-rail hoist locomotive according to claim 7, characterized in that: A long through groove (463) is formed on one side of the connecting frame (462). The fixed shaft (461) is located inside the long through groove (463). One end of the L-shaped limit post (468) is inserted into the long through groove (463).

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