Underground material conveying system for vehicle depot

Abstract

The utility model belongs to the technical field of material conveying, and particularly relates to an underground material conveying system for a vehicle depot field, which comprises an underground passage arranged under the vehicle depot field and a plurality of material taking and placing passages communicated with the underground passage, and one end, far away from the underground passage, of one part of the material taking and placing passages is positioned on the ground of a corresponding material room. One end, far away from the underground passage, of the other part of material taking and placing passage is positioned on the corresponding station ground; an AGV trolley and an electromagnetic rail for the AGV trolley to run are arranged in the underground channel, the top end of the AGV trolley is detachably connected with a tray used for storing materials, and a lifting unit used for driving the tray to ascend and descend is arranged in the material taking and placing channel. According to the utility model, the underground passage and the material taking and placing passage are connected with the vehicle maintenance station and the material room, the AGV trolley is used for transporting the tray, and the lifting unit is used for realizing the lifting of the tray, so that underground conveying of materials is realized, the fatigue degree of workers is reduced, and the working efficiency of vehicle maintenance is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of material transportation, and in particular relates to an underground material transportation system for a vehicle depot. Background Art

[0002] The vehicle depot is one of the important units of the railway operation system, mainly responsible for the operation, maintenance, and inspection of train vehicles (excluding locomotives). The vehicle depot is also the place for operation management, parking, repair, and maintenance of vehicles in the urban rail transit system (subway, urban light rail).

[0003] At present, many work contents in the vehicle depot rely on the personal inspection and maintenance of the front-line staff. However, the materials required by the front-line staff for their work are centrally managed. Transporting materials from the centralized management area (material room) to the maintenance site will waste a lot of manpower and time, which greatly affects work efficiency.

[0004] In addition, the depot contains many different types of maintenance rooms, such as air conditioning maintenance rooms, door and window maintenance rooms, electronic maintenance rooms, etc. If the staff need to replace or add materials temporarily, they need to run to the corresponding material room to get them. However, since the subway depot is long, the staff takes a long time to get the materials temporarily, which has a negative impact on the maintenance efficiency. Utility Model Content

[0005] The utility model aims to provide an underground material conveying system for a vehicle depot, so as to solve the problem that the vehicle depot needs workers to carry materials manually, resulting in low maintenance efficiency.

[0006] In order to achieve the above-mentioned purpose, the scheme of the utility model is: an underground material conveying system for a vehicle depot, comprising an underground passage arranged underground in the vehicle depot and a plurality of material picking and placing passages connected to the underground passage, one end of a part of the material picking and placing passages away from the underground passage is located on the ground of a corresponding material room, and another end of the material picking and placing passages away from the underground passage is located on the ground of a corresponding work station; an AGV trolley and an electromagnetic track for the operation of the AGV trolley are arranged in the underground passage, a tray for storing materials is detachably connected to the top of the AGV trolley, and a lifting unit for driving the tray to rise and fall is arranged in the material picking and placing passage.

[0007] The working principle and beneficial effects of this solution are as follows: In this solution, an underground passage and a material picking and placing passage are designed underground between the material room and the vehicle maintenance station in the vehicle depot. The pallet is transported by an AGV trolley, and the pallet is lifted and lowered by a lifting unit to realize the underground transportation of materials. The staff can take the required materials at the maintenance station, and there is no need for the staff to go back and forth between the maintenance station and the material room to take materials, which reduces the fatigue of the staff and improves the work efficiency of vehicle maintenance.

[0008] Optionally, the lifting unit includes a connecting piece connected to the tray and a driving assembly for driving the connecting piece to rise and fall, the connecting piece includes a vertical portion and a horizontal portion, the vertical portion is fixedly connected to the driving assembly, and the horizontal portion is located below the tray.

[0009] In this solution, when the AGV moves to the predetermined position, the pallet is located directly above the transverse portion, the driving assembly drives the connecting piece to rise, the transverse portion contacts the bottom wall of the pallet and drives the pallet to rise; after the material is taken and placed in the pallet, the driving assembly drives the connecting piece to descend, so that the pallet descends and resets, thereby realizing the lifting and lowering of the pallet, so that the staff can take and place the materials.

[0010] Optionally, the number of the lifting units is more than two, and the lifting units are distributed on both sides of the moving direction of the tray.

[0011] In this solution, the pallet will be subject to more than two force points during the lifting process, making the lifting process of the pallet more stable.

[0012] Optionally, a limiting portion is provided above the transverse portion, and an engaging groove for the edge of the tray to be horizontally embedded is formed between the limiting portion and the transverse portion.

[0013] In this solution, when the AGV moves to a predetermined position, the edge of the pallet is embedded in the engaging groove formed between the limiting portion and the transverse portion, so that the pallet can be lifted and lowered using a single lifting unit.

[0014] Optionally, an electric push rod for driving the limiting part to move vertically is fixedly mounted on the vertical part.

[0015] In this solution, the limiting portion can move vertically, so that after the edge of the tray is embedded in the engaging groove, the limiting portion moves downward and abuts against the edge of the tray, thereby applying a clamping force to the tray, thereby stably clamping the tray during the lifting process.

[0016] Optionally, the driving assembly includes a driving motor and a ball screw pair, the driving motor is used to drive the screw of the ball screw pair to rotate, the screw of the ball screw pair is vertically installed in the material picking and placing channel, the nut of the ball screw pair is vertically slidingly connected in the material picking and placing channel, and the vertical part is fixedly connected to the nut of the ball screw pair.

[0017] In this solution, a driving motor and a ball screw pair are used as driving components to realize the lifting and lowering of the connecting piece, thereby realizing the lifting and lowering of the pallet.

[0018] Optionally, the driving assembly includes a driving motor, a winding roller, a winding rope and a vertical pipe, the driving motor is used to drive the winding roller to rotate, a slider is vertically slidably connected in the vertical pipe, one end of the winding rope is fixedly connected to the slider, and the other end of the winding rope is fixedly connected to the winding roller; the slider is fixedly connected to a connecting piece, and the vertical pipe is provided with a sliding groove along its axial direction for the connecting piece to slide, and the end of the connecting piece away from the slider is fixedly connected to the vertical part.

[0019] In this solution, a driving motor is used to drive the winding roller to rotate forward and reverse to realize the retraction and release of the winding rope, thereby driving the slider and the connecting piece to move up and down, thereby realizing the lifting and lowering of the pallet.

[0020] Optionally, a fixed pulley is provided above the vertical pipe, and the winding rope is fixedly connected to the winding roller after passing around the fixed pulley.

[0021] In this solution, a fixed pulley is used to limit the axial movement of the reeling rope in the vertical pipe, so as to avoid wear caused by friction between the reeling rope and the top of the vertical pipe.

[0022] Optionally, a fixing plate is fixedly mounted on the top of the AGV trolley, a plurality of limiting rods are arranged on the fixing plate, and limiting blind holes for inserting the limiting rods are opened on the tray.

[0023] In this solution, a limit rod is inserted into the limit blind hole to realize a detachable connection between the AGV trolley and the pallet, and to limit the horizontal movement of the pallet.

[0024] Optionally, both the underground passage and the material loading and unloading passage are installed with assembled integrated pipe galleries.

[0025] In this plan, the prefabricated integrated pipeline corridor is easy to install and disassemble. For large-scale areas such as vehicle depots and maintenance depots, the use of prefabricated integrated pipeline corridors can greatly reduce unnecessary manpower and financial investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of an underground material conveying system for a vehicle depot in Embodiment 1 of the present utility model;

[0027] Figure 2 This is a schematic diagram of the structure after the AGV trolley and the pallet are separated in the first embodiment of the utility model;

[0028] Figure 3 for Figure 1 Right view of the material loading and unloading channel;

[0029] Figure 4 It is a right view of the material taking and placing channel in the second embodiment of the utility model;

[0030] Figure 5It is a right view of the material loading and unloading passage in the third embodiment of the present utility model. DETAILED DESCRIPTION

[0031] The following is further described in detail through specific implementation methods:

[0032] The marks in the drawings of the specification include: underground passage 1, material loading and unloading passage 2, assembled integrated pipeline corridor 3, AGV trolley 4, electromagnetic rail 5, pallet 6, limit blind hole 601, fixed plate 7, limit rod 8, lifting unit 9, connecting part 910, vertical part 911, horizontal part 912, drive assembly 920, drive motor 921, screw rod 922, nut 923, T-block 924, winding roller 925, winding rope 926, fixed pulley 927, vertical pipe 928, slider 929, vertical plate 930, limit part 940, electric push rod 950, connecting part 960.

[0033] Embodiment 1

[0034] This embodiment is basically Figure 1-Figure 3 As shown: an underground material conveying system for a vehicle depot, comprising an underground passage 1 arranged under the vehicle depot and a plurality of material taking and placing passages 2 connected to the underground passage 1, the top of a portion of the material taking and placing passages 2 is located on the ground of a corresponding material room, that is, located inside the material room, and the top of another portion of the material taking and placing passages 2 is located on the ground of a corresponding maintenance station, and is about three meters away from the maintenance station. To ensure the safety of the staff, a fence is used to enclose the port of the material taking and placing passage 2 near the maintenance station to prevent the staff from stepping on air, and the fence does not affect the staff from taking and placing materials.

[0035] The number of material access channels 2 is the sum of the number of maintenance stations and the number of material rooms. In this embodiment, the number of material access channels 2 is four, of which one material access channel 2 corresponds to a material room, and three material access channels 2 correspond to three maintenance stations (i.e., maintenance station I, maintenance station II, and maintenance station III). In addition, an assembled integrated pipe gallery 3 is installed in the underground passage 1, the material access channel 2, and the intersection of the underground passage 1 and the material access channel 2. Different types of assembled integrated pipe gallery units can be equipped according to different locations, which can greatly reduce unnecessary manpower and financial investment.

[0036] The underground passage 1 is provided with an AGV trolley 4 and an electromagnetic track 5 for the AGV trolley 4 to run. A guide wire is buried inside the electromagnetic track 5 to transmit radio frequency signals. The AGV trolley 4 moves and acts based on the information brought by the electromagnetic track 5. The top of the AGV trolley 4 is detachably connected with a tray 6 for storing materials. Specifically, in combination with Figure 2As shown, a fixing plate 7 is bolted to the top of the AGV trolley 4, and a plurality of limit rods 8 are welded to the fixing plate 7. A limit blind hole 601 is provided on the bottom wall of the tray 6 for inserting the limit rods 8. The AGV trolley 4 defines a plurality of trolley parking points according to the different locations of the maintenance stations, and each trolley parking point is located directly below the material access channel 2 corresponding to the maintenance station, so that the tray 6 can be lifted and lowered.

[0037] The material access channel 2 is provided with a lifting unit 9 for driving the tray 6 to rise and fall. Figure 3 As shown, the lifting unit 9 includes a connecting piece 910 connected to the tray 6 and a driving assembly 920 for driving the connecting piece 910 to rise and fall, and the connecting piece 910 includes a vertical portion 911 and a horizontal portion 912, and the horizontal portion 912 is located below the tray 6. The driving assembly 920 in this embodiment includes a driving motor 921 and a ball screw pair, and the driving motor 921 is fixedly installed in the material access channel 2 or in the underground channel 1 or on the ground. In this embodiment, the driving motor 921 is fixedly installed on a bracket set on the ground. The driving motor 921 is used to drive the screw rod 922 of the ball screw pair to rotate. The screw rod 922 of the ball screw pair is vertically installed in the material loading and unloading channel 2. The nut 923 of the ball screw pair is vertically slidably connected to the material loading and unloading channel 2. Specifically, a vertical plate 930 is installed in the material loading and unloading channel 2 through anchor nails. A vertically arranged T-slot is provided on the vertical plate 930. The nut 923 of the ball screw pair is fixedly connected to a T-block 924 that slides with the T-slot. The vertical portion 911 is fixedly connected to the nut 923 of the ball screw pair; and the screw rod 922 of the ball screw pair is rotatably installed on the vertical plate 930 through a bearing. In addition, the number of lifting units 9 is more than two, so that the force points of the tray 6 are more than two; in this embodiment, the number of lifting units 9 is two, and the two lifting units 9 are respectively located on the left and right sides of the tray 6 ("left and right sides" are based on Figure 3 As described in the directions shown in the title Figure 1 The directions shown should be the front and rear sides of the tray 6).

[0038] In actual application, the staff at the maintenance station informs the staff in the material room of the location of his maintenance station and the required materials; or a self-service material pickup machine is established near the maintenance station, and a central control system is established in the material room and equipped with a robotic arm controlled by the central control system. The central control system can receive and display the information transmitted by the self-service material pickup machine. In this way, the staff enters the location information of the maintenance station and the information of the required materials on the self-service material pickup machine, and the central control system in the material room receives and displays the material information, and at the same time controls the robotic arm to take the materials from the shelf and put them into the tray 6. Materials that cannot be taken and placed by the robotic arm (such as small materials such as bolts) are manually taken and placed by the staff in the material room; or, the staff enters the location information of the maintenance station and the information of the required materials on the mobile phone terminal. After receiving the information transmitted by the mobile phone terminal, the central control system in the material room displays the required material information and controls the robotic arm to take the materials from the shelf and put them into the tray 6. Materials that cannot be taken and placed by the robotic arm are manually taken and placed by the staff in the material room.

[0039] After all the required materials are placed in the tray 6, the corresponding lifting unit 9 is started to drive the tray 6 to descend. Specifically, the corresponding drive motor 921 is started to drive the corresponding screw rod 922 to rotate clockwise, so that the corresponding nut 923 moves downward, and then drives the corresponding connector 910 to move downward. Since the bottom wall of the tray 6 is in contact with the horizontal portion 912 of the corresponding connector 910, the tray 6 moves down slowly until the tray 6 is seated on the AGV trolley 4, and at this time, the limit rod 8 is inserted into the limit blind hole 601 on the bottom wall of the tray 6, thereby preventing the tray 6 from moving horizontally relative to the AGV trolley 4 under the action of inertia. After the corresponding connector 910 continues to move down for a distance (for example, 5 cm), the corresponding drive motor 921 stops working again, thereby ensuring that the corresponding connector 910 is separated from the tray 6.

[0040] Subsequently, the AGV trolley 4 determines the trolley parking point corresponding to the target station according to the information brought by the guide line in the electromagnetic track 5. The AGV trolley 4 runs along the electromagnetic track 5, and transports the tray 6 and the materials in the tray 6 to the bottom of the material access channel 2 corresponding to the target station (i.e., the target parking point). When the AGV trolley 4 stops, the tray 6 is located above the corresponding transverse portion 912. The lifting unit 9 in the material access channel 2 corresponding to the target station is started, and the corresponding drive motor 921 drives the corresponding screw rod 922 to rotate counterclockwise, so that the corresponding nut 923 moves upward, and then drives the corresponding connector 910 to move upward. After the corresponding transverse portion 912 moves upward, it contacts the bottom wall of the tray 6, thereby driving the tray 6 to move upward, so that the tray 6 rises to the top of the corresponding material access channel 2, so that the staff at the target station can take the materials in the tray 6.

[0041] After the staff finishes taking the materials, the corresponding lifting unit 9 is started again, and the corresponding driving motor 921 is started, driving the corresponding screw 922 to rotate clockwise, so that the corresponding nut 923 and the connecting piece 910 move downward, and then the tray 6 moves slowly downward until the tray 6 is seated on the AGV trolley 4 again, and the limit rod 8 is inserted into the limit blind hole 601 on the bottom wall of the tray 6. Subsequently, the AGV trolley 4 returns along the electromagnetic track 5 to the underground passage 1 connected to the material access passage 2 corresponding to the material room, and the tray 6 rises to the top of the material access passage 2 under the action of the lifting unit 9 there, that is, the tray 6 returns to the material room, so as to continue to transport materials between the material room and the target workstation.

[0042] To sum up, in this embodiment, the lifting and lowering of the pallet 6 is achieved by the lifting unit 9, and the translation of the pallet 6 is achieved by the AGV trolley 4, so that the materials are transported from the material room to the target maintenance station. There is no need for the staff to go back and forth between the maintenance station and the material room to get the materials, which reduces the fatigue of the staff and improves the work efficiency of vehicle maintenance.

[0043] Embodiment 2

[0044] The difference between this embodiment and the first embodiment is that: Figure 4 As shown, in the lifting unit 9 in this embodiment, a limiting portion 940 is provided above the transverse portion 912, and an interlocking groove for horizontally embedding the edge of the tray 6 is formed between the limiting portion 940 and the transverse portion 912. In addition, an electric push rod 950 for driving the limiting portion 940 to move vertically is fixedly mounted on the vertical portion 911.

[0045] In this embodiment, the tray 6 is driven by the AGV trolley 4 to move horizontally in the underground passage 1. When the AGV trolley 4 runs to the target parking point, the edge of the tray 6 is just embedded in the fitting groove; then, the corresponding drive motor 921 is started, the connecting member 910 moves up, and the electric push rod 950 is started at the same time, the limit part 940 moves down, and the transverse part 912 and the limit part 940 contact the edge of the tray 6 at the same time, thereby clamping the edge of the tray 6, so that the tray 6 is stably lifted and lowered under the action of the lifting unit 9. Moreover, when the tray 6 descends and sits on the AGV trolley 4 again, the electric push rod 950 immediately drives the limit part 940 to move up. During this process, the transverse part 912 is in a downward state, and the limit part 940 and the transverse part 912 are separated from the tray 6, thereby releasing the tray 6. In addition, since the limit part 940 and the transverse part 912 are used to clamp the edge of the tray 6 to stably lift the tray 6 in this embodiment, the number of lifting units 9 can be set to only one, reducing equipment costs.

[0046] Embodiment 3

[0047] The difference between this embodiment and the first embodiment is that the driving assembly 920 in this embodiment is different from the driving assembly 920 in the first embodiment. Figure 5 As shown, it includes a driving motor 921, a winding roller 925, a winding rope 926, a fixed pulley 927 and a vertical pipe 928. The driving motor 921 is used to drive the winding roller 925 to rotate. A slider 929 is vertically slidably connected in the vertical pipe 928. One end of the winding rope 926 is fixedly connected to the slider 929. The other end of the winding rope 926 is fixedly connected to the winding roller 925 after passing the fixed pulley 927. The fixed pulley 927 is fixedly installed just above the vertical pipe 928. The slider 929 is fixedly connected to a connecting member 960. The vertical pipe 928 is provided with a sliding groove along its axial direction for the sliding of the connecting member 960. The end of the connecting member 960 away from the slider 929 is fixedly connected to the vertical portion 911.

[0048] In this embodiment, after the AGV trolley 4 receives the parking point position information corresponding to the target station, the AGV trolley 4 runs along the electromagnetic track 5, and transports the tray 6 and the materials in the tray 6 to the right below the material access channel 2 corresponding to the target station (i.e., the target parking point), and the AGV trolley 4 stops. At this time, the tray 6 is located above the corresponding horizontal portion 912. The lifting unit 9 in the material access channel 2 corresponding to the target station is started, and the drive motor 921 drives the winding roller 925 to rotate counterclockwise, and the winding rope 926 is wound on the winding roller 925, thereby pulling the slider 929 in the vertical pipe 928 to slide upward, and then driving the connecting member 910 to move upward, so as to achieve the rise of the tray 6. Similarly, the drive motor 921 drives the winding roller 925 to rotate clockwise, and the winding rope 926 is released from the winding roller 925, so that the slider 929 in the vertical pipe 928 slides downward, and then drives the connecting member 910 to move downward, so as to achieve the descent of the tray 6. In addition, the driving assembly 920 in this embodiment can also replace the driving assembly 920 in the second embodiment, so as to realize the lifting and lowering of the tray 6.

[0049] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the utility model. The specific implementation methods and other records in the specification can be used to explain the content of the claims.

Claims

1. An underground material conveying system for a vehicle depot, characterized in that: It includes an underground passage arranged under the vehicle depot and several material picking and placing passages connected to the underground passage, one end of a part of the material picking and placing passages away from the underground passage is located on the ground of the corresponding material room, and the other end of the material picking and placing passages away from the underground passage is located on the ground of the corresponding workstation; an AGV trolley and an electromagnetic track for the operation of the AGV trolley are arranged in the underground passage, a tray for storing materials is detachably connected to the top of the AGV trolley, and a lifting unit for driving the tray to rise and fall is arranged in the material picking and placing passage.

2. The underground material conveying system for a vehicle depot according to claim 1 is characterized in that: The lifting unit includes a connecting piece connected to the tray and a driving assembly for driving the connecting piece to rise and fall. The connecting piece includes a vertical portion and a horizontal portion. The vertical portion is fixedly connected to the driving assembly, and the horizontal portion is located below the tray.

3. The underground material conveying system for a vehicle depot according to claim 2 is characterized in that: The number of the lifting units is more than two, and the lifting units are distributed on both sides of the moving direction of the tray.

4. The underground material conveying system for a vehicle depot according to claim 2 is characterized in that: A limiting portion is provided above the transverse portion, and an engaging groove is formed between the limiting portion and the transverse portion for the edge of the tray to be horizontally embedded.

5. The underground material conveying system for a vehicle depot according to claim 4 is characterized in that: An electric push rod for driving the limiting part to move vertically is fixedly mounted on the vertical part.

6. The underground material conveying system for a vehicle depot according to claim 2 is characterized in that: The driving assembly includes a driving motor and a ball screw pair. The driving motor is used to drive the screw of the ball screw pair to rotate. The screw of the ball screw pair is vertically installed in the material loading and unloading channel. The nut of the ball screw pair is vertically slidably connected in the material loading and unloading channel. The vertical part is fixedly connected to the nut of the ball screw pair.

7. The underground material conveying system for a vehicle depot according to claim 2, characterized in that: The driving assembly includes a driving motor, a winding roller, a winding rope and a vertical pipe. The driving motor is used to drive the winding roller to rotate. A slider is vertically slidably connected in the vertical pipe. One end of the winding rope is fixedly connected to the slider, and the other end of the winding rope is fixedly connected to the winding roller. The slider is fixedly connected to a connecting piece. The vertical pipe is provided with a sliding groove along its axial direction for the connecting piece to slide. The end of the connecting piece away from the slider is fixedly connected to the vertical part.

8. The underground material conveying system for a vehicle depot according to claim 7, characterized in that: A fixed pulley is provided above the vertical pipeline, and the winding rope is fixedly connected to the winding roller after passing around the fixed pulley.

9. The underground material conveying system for a vehicle depot according to claim 1, characterized in that: A fixing plate is fixedly mounted on the top of the AGV trolley, a plurality of limiting rods are arranged on the fixing plate, and limiting blind holes for the limiting rods to be inserted are opened on the tray.

10. The underground material conveying system for a vehicle depot according to claim 1, characterized in that: The underground passage and the material loading and unloading passage are both installed with assembled integrated pipe galleries.

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