An intelligent selection system for railway freight car wheels

Abstract

The present invention discloses a railway freight car wheel set intelligent matching system, including running rails, wheel set positioning and rotating devices, wheel set storage racks, wheel set storage translation devices, wheel set intelligent pick-up and placement devices, wheel set out-of-warehouse translation devices, and second wheel set dial wheel devices. The wheel set positioning and rotating devices include wheel set positioning and rotating devices, which push the wheelset to the wheel set storage translation device by positioning and rotating the wheelset; the wheel set intelligent pick-up and placement device includes a running device and a wheel set grabbing mechanism; the wheel set out-of-warehouse translation device is provided with a second wheel set dial wheel device at a docking position with the first standard rail of an assembly station, so as to dial the wheelset on the wheelset out-of-warehouse translation device to the first standard rail, thereby realizing the assembly of the wheelset and the bogie frame at the assembly station. The present invention can realize automatic control of the entire process of storage, matching and out-of-warehouse of the wheelset, can realize accurate positioning and grabbing of the wheelset intelligent pick-up and placement device, and greatly improve the quality of wheelset matching and production efficiency.

Description

Technical Field

[0001] The present invention belongs to the field of railway freight car maintenance, and more specifically, relates to an intelligent wheel pair matching system for railway freight car. Background Art

[0002] As a key component of the running gear of a railway freight car, the wheelset is the final stress-bearing component of the vehicle. The quality and performance of the wheelset directly affects the safety of the train operation. When a railway freight car is repaired in a factory, the vehicle must be disassembled, inspected and reassembled according to the maintenance regulations. During the assembly operation, the wheelset needs to be selected. The wheel diameter difference of the same bogie and the same vehicle has strict technical requirements in terms of process. At the same time, the size of the wheel diameter also affects the height of the coupler when the vehicle is completed, and affects the adjustment of the side bearing clearance size when the vehicle is completed. The existing wheelset selection method mainly adopts manual selection, which mainly has the following problems:

[0003] (1) In order to adjust the coupler height to within the technical requirement range of 880±10mm, maintenance personnel need to manually calculate the thickness of the lower center plate pad to be installed for each bogie according to the original coupler height, wheel diameter, lower center plate pad thickness and wheel diameter of the selected wheelset. Maintenance personnel need to walk back and forth from the repair garage to the wheelset selection area, which is a large workload and prone to errors, resulting in the coupler height not meeting the technical requirements after the vehicle is completed.

[0004] (2) When selecting wheelsets, it is necessary to consider the wheelset model, wheel diameter, wheel rim thickness, bearing quality assurance period, etc. according to the vehicle model. Maintenance personnel need to use cranes for frequent lifting and adjust the order of wheelset expenditure to select suitable wheelsets for pairing. The workload and labor intensity are large, and the work efficiency is low. Summary of the invention

[0005] In response to the above defects or improvement needs of the prior art, the present invention provides an intelligent wheelset selection system for railway freight cars. The system meets the storage needs of various types of wheelsets for railway freight cars. It can quickly and accurately perform storage, transmission and other material input and output actions by acquiring information data of wheelsets entering and leaving the warehouse. It can also timely and accurately understand the production situation within a certain period of time through consumption and inventory analysis of wheelsets, thereby solving the workload and labor intensity of manual wheelset selection and improving the selection accuracy and work efficiency.

[0006] To achieve the above-mentioned purpose, according to one aspect of the present invention, a railway freight car wheel set intelligent matching system is provided, which is characterized by comprising a running rail, a wheel set positioning and rotating device, a wheel set storage rack, a wheel set storage translation device, a wheel set intelligent picking and placing device and a wheel set storage translation device, wherein:

[0007] The wheelset positioning and rotating device comprises a rotating platform and a first wheelset dialing device mounted on the rotating platform, so as to position and rotate the wheelset before the wheelset is stored;

[0008] A wheelset transfer track is provided between the wheelset positioning and rotating device and the wheelset storage translation device, and the first wheelset thumbwheel device transfers the wheelset on the rotating platform to the wheelset storage translation device through the wheelset transfer track for transportation into storage; the wheelset intelligent picking and placing device comprises a running device and a wheelset grasping mechanism, the running device is supported by the running track, and the wheelset grasping mechanism is installed on the running device, so as to grasp the wheelset on the wheelset storage translation device and store it on the wheelset storage rack, or grasp the wheelset on the wheelset storage rack and transport it out of storage to the assembly station;

[0009] The assembly station is provided with a first standard rail, and the wheelset out-of-warehouse translation device is provided with a second wheelset dialing device at a position corresponding to the first standard rail, so as to dial the wheelset on the wheelset out-of-warehouse translation device onto the first standard rail, thereby realizing the assembly of the wheelset and the bogie frame at the assembly station.

[0010] Preferably, a three-axis mobile platform is installed on the running device, a rotating mechanism is installed on the three-axis mobile platform, and the wheelset grasping mechanism is installed on the rotating mechanism to realize the lifting and lowering of the wheelset grasping mechanism in the vertical direction and the lateral and longitudinal movement along the running rail.

[0011] Preferably, the wheelset gripping mechanism has two clamping claws to grip a group of two wheelsets, thereby realizing the assembly of a bogie frame and a group of wheelsets.

[0012] Preferably, the wheelset intelligent picking and placing device comprises a plurality of devices, which work in collaboration in different areas to pick up and store the wheelsets.

[0013] Preferably, the wheelset storage rack adopts a V-shaped support block with an opening facing upward to fix the position of the wheelset, and an address code is affixed to the ground at each wheelset storage rack so that the wheelset microcomputer matching system can compile the address codes of each position and allow the wheelset microcomputer matching system to control the wheelset grabbing mechanism to grab the wheelset on the wheelset storage rack at the set address.

[0014] Preferably, after the wheelset intelligent picking and placing device receives the wheelset warehousing instruction issued by the wheelset microcomputer matching system, it moves to the designated position through the running rails, and the wheelset grabbing mechanism moves down to automatically grab the wheelset, and the wheelset is placed in the storage position on the wheelset storage rack allocated by the wheelset microcomputer matching system through the joint movement of the running device and the wheelset grabbing mechanism.

[0015] Preferably, the wheelset storage rack adopts a storage method of staggered plane and double-layer arrangement of wheelsets for wheelset storage.

[0016] Preferably, the exit end of the wheelset warehousing translation device is docked with a second standard rail, and the second standard rail is docked with the first standard rail of the assembly station, and a manual turntable is provided at the junction of the second standard rail and the first standard rail to enable the wheelset to be pushed from the second standard rail to the assembly area of ​​the first standard rail in the failure mode of the microcomputer matching system.

[0017] Preferably, the wheelset intelligent picking and placing device communicates with the wheelset microcomputer matching system via wireless industrial Ethernet, and the wheelset microcomputer matching system sends operation instructions to the wheelset intelligent picking and placing device, receives status information of the wheelset intelligent picking and placing device, and monitors the operation of the wheelset intelligent picking and placing device.

[0018] Preferably, the wheelset microcomputer matching system communicates with HMIS data to implement HMIS management at the axle assembly line station level.

[0019] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0020] (1) The present invention can realize the positioning of the wheelset before storage through the first wheelset dial device of the wheelset positioning rotation device, and can realize the rotation of the wheelset to the set position through the rotating platform of the wheelset positioning rotation device, and then transfer the wheelset to the wheelset storage translation device through the dial action of the first wheelset dial device to realize storage, and after the wheelset is stored in the warehouse, the wheelset can be intelligently picked up and placed through the wheelset intelligent pick-up and placement device, and the required wheelset is selected according to the instructions of the microcomputer matching system and placed on the wheelset storage-out translation device for storage out, so that the whole process of wheelset storage, matching and storage out can be automatically controlled, and the precise positioning and grasping of the wheelset intelligent pick-up and placement device can be realized.

[0021] (2) The present invention replaces the traditional manual matching operation mode, which can effectively solve the current situation of high workload and low work efficiency of operators during the wheelset matching of railway freight cars, greatly improve the wheelset matching quality and production efficiency. At the same time, the application of the intelligent matching system also promotes the development of intelligent technology of railway freight cars.

[0022] (3) The microcomputer matching system of the present invention can be interconnected with the data of the HMIS of the vehicle depot, and can realize the information management of the automatic wheelset matching process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall plan view of the present invention;

[0024] Figure 2 It is a cross-sectional schematic diagram of the present invention;

[0025] Figure 3 is a schematic diagram of the system architecture of the present invention;

[0026] Figure 4 It is a process flow chart of the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] like Figure 1 to Figure 4 As shown, a railway freight car wheel set intelligent matching system includes a running rail 10, a wheel set positioning and rotating device 4, a wheel set storage rack 2, a wheel set storage translation device 301, a wheel set intelligent pick-up and placement device 1, a wheel set storage translation device 302, and a second wheel set dial wheel device 8. The wheel set positioning and rotating device 4 includes a rotating platform and a first wheel set dial wheel device installed on the rotating platform, so as to position and rotate the wheel set before the wheel set is stored;

[0029] A wheelset transfer track is provided between the wheelset positioning rotating device 4 and the wheelset storage translation device 301, so that the wheelset on the rotating platform can be transferred to the wheelset storage translation device 301 for transportation into storage through the first wheelset thumbwheel device; the placement platform has an automatic turntable driven by a driving device, which can realize the rotation of the wheelset 7, and the first wheelset thumbwheel device can realize the positioning and pushing out of the wheelset 7. Both the wheelset storage translation device 301 and the wheelset out-of-stock translation device 302 can adopt existing conveying devices. After the wheelset 7 rotates 90 degrees on the wheelset positioning rotating device 4, the first wheelset thumbwheel device pushes the wheelset 7 onto the wheelset transfer track.

[0030] The wheelset intelligent pick-and-place device 1 comprises a running device 101 and a wheelset grabbing mechanism 102, wherein the running device 101 is supported by the running rail 10, and the wheelset grabbing mechanism 102 is installed on the running device 101, so as to grab the wheelset 7 on the wheelset storage rack 2 for storage, or grab the wheelset 7 on the wheelset storage rack 2 for storage on the wheelset storage rack 2, and transport the wheelset out of the storage to the assembly station;

[0031] The assembly station is provided with a first standard rail 601, and the wheelset out-of-warehouse translation device 302 is provided with a second wheelset dialing device 8 at a position corresponding to the first standard rail 601, so as to dial the wheelset 7 on the wheelset out-of-warehouse translation device 302 to the first standard rail 601, thereby realizing the assembly of the wheelset 7 and the bogie frame at the assembly station.

[0032] The first wheel pair thumbwheel device and the second wheel pair thumbwheel device of the present invention both include a power device and a rotatable thumbwheel driven by the power device, and the rotatable thumbwheel block can drive the wheels of the wheel pair 7 to roll after rotating. The rotatable thumbwheel block of the first wheel pair thumbwheel device can also play a role in positioning the wheel pair 7 on the rotating platform. In addition, the wheel pair storage translation device 301 and the wheel pair storage translation device 302 can also cooperate with the positioning sensor to realize the positioning of the wheel pair 7.

[0033] Furthermore, a three-axis mobile platform is installed on the running device 101, a rotating mechanism is installed on the three-axis mobile platform, and the wheelset grabbing mechanism 102 is installed on the rotating mechanism to achieve the lifting and lowering of the wheelset grabbing mechanism 102 in the vertical direction and the lateral and longitudinal movement along the running rail 10.

[0034] Through the movement of the running device 101 and the wheelset gripping mechanism 102, the three-axis movement of the wheelset intelligent pick-up and placement device 1 can be realized. The wheelset gripping mechanism 102 has the functions of longitudinal running, vertical lifting, rotation, and opening and closing of the gripper. Each action is driven by a servo motor as a power source, and a gear rack or a lead screw is used as an actuator. A stable and reliable control system is used to ensure the accuracy of the intelligent pick-up and placement device 1 when it runs to any position and has a mechanical self-locking function. After the wheelset gripping mechanism 102 reaches the designated position under the control of the wheelset microcomputer matching system 9, it grabs and stores the wheelset 7 to realize accurate automatic pick-up and placement of the wheelset 7.

[0035] Furthermore, the wheelset grasping mechanism 102 can be provided with two clamps as required, and can grasp a group of two wheelsets 7 at the same time, so as to realize the rapid assembly of a bogie frame and a group of wheelsets 7, and further improve the efficiency of the wheelset 7 selection operation and the bogie assembly efficiency.

[0036] Furthermore, in order to further improve the efficiency of the wheelset 7 selection operation, two or more sets of wheelset intelligent picking and placing devices 1 can be set in the warehouse to work collaboratively in different areas and simultaneously grab and store the wheelset 7.

[0037] The running rail 10 is made of steel structure, which has sufficient rigidity and stability to ensure the rapid movement and accurate positioning of the wheel set intelligent pick-and-place device 1 on the running rail 10. The running rail 10 is arranged using building columns, and there is no need to set up supporting columns for the running rail 10 separately, making full use of the limited space in the warehouse.

[0038] Furthermore, the wheelset storage rack 2 uses a V-shaped support block with an opening facing upward to fix the position of the wheelset 7. An address code is affixed to the ground at each wheelset storage rack 2 so that the wheelset microcomputer matching system 9 can compile the address codes of each position and allow the wheelset microcomputer matching system to control the wheelset grabbing mechanism 102 to grab the wheelset on the wheelset storage rack 2 at the set address.

[0039] Furthermore, the wheelset storage rack 2 adopts a storage method of staggered plane and double-layer arrangement of the wheelsets 7 to maximize the storage of the wheelsets 7.

[0040] Furthermore, the exit end of the wheelset storage translation device 301 is docked with a second standard rail 602, and the second standard rail 602 is docked with the first standard rail 601 of the assembly station, and a manual turntable 5 is provided at the junction of the second standard rail 602 and the first standard rail 601 to realize the transfer of the wheelset 7 from the second standard rail 602 to the first standard rail 601. This facilitates manual matching when the wheelset intelligent matching system 9 fails, and pushes the repaired wheelset 7 to the assembly station through the second standard rail 602 and the first standard rail 601.

[0041] The present invention can reasonably arrange the wheelset storage rack 2 according to the actual daily average number of truck repairs and the space size of the axle selection area, and maximize the use of limited space and increase the number of stored wheels while meeting the minimum requirements for wheelset storage in the truck vehicle section.

[0042] During the conveying operation of the present invention, the wheelset 7 is supported by the wheelset in-warehouse translation device 301 and the wheelset out-warehouse translation device 302, which can randomly load parts, continuously convey, and accurately position to ensure that the wheelset 7 is conveyed to the designated position, complete the conveying of the wheelset 7, and realize seamless docking with the wheelset intelligent pick-up and placement device 1. Under the control of the wheelset microcomputer matching system 9, the wheelset out-warehouse translation device 302 conveys the wheelset 7 to the docking position with the first standard rail 601, and the wheelset out-warehouse translation device 302 is provided with a second wheelset dialing device 8 at the docking position with the first standard rail 601, which automatically dials the wheelset 7 out and enters the bogie assembly area.

[0043] The wheelset microcomputer matching system 9 of the present invention includes a monitoring management program, a server, a workstation PC, an industrial handheld device, a scanner, a wireless network construction, etc. It is the nerve center of the entire wheelset intelligent matching system and can realize the intelligent and automated management of wheelset in and out of the warehouse. The wheelset microcomputer matching system 9 communicates with the wheelset intelligent pick-up and placement device in two directions through wireless industrial Ethernet and monitors it in real time. The wheelset microcomputer matching system 9 issues operation instructions, receives various status information of the wheelset intelligent pick-up and placement device 1, and monitors its operation. The wheelset microcomputer matching system 9 has four control modes: maintenance, manual, stand-alone automatic, and online automatic. At the same time, the wheelset microcomputer matching system 9 can realize interconnection with HMIS data and realize HMIS wheel axle assembly line station-level management.

[0044] The application of the present invention in the wheelset selection of the southern part (vehicle) of Xiangzhou Locomotive and Vehicle Section of Haoji Railway is taken as an example for detailed explanation. The wheelset intelligent selection system should meet the throughput requirement of 48 wheelsets repaired per day in the southern part (vehicle) of Xiangzhou Locomotive and Vehicle Section, and no less than 502 wheelsets should be arranged within a range of 38m×23m in length and width.

[0045] When the railway freight car is repaired in the depot, the bogie frame and wheelset are disassembled, and the bogie frame is transported to the bogie maintenance workshop for corresponding disassembly, maintenance and assembly. The wheelset 7 to be repaired is sent to the wheelset inspection and flaw detection workshop, and the corresponding maintenance work is completed in the wheelset machining workshop, wheelset bearing press-fitting workshop, and wheelset running-in inspection area in turn.

[0046] When the wheelset 7 is repaired and sent to the loading point of the wheelset matching area, the operator uses a handheld scanner to scan the barcode on the wheelset 7, reads the number, size and other related data information of the wheelset 7 in the barcode, and transmits the data to the database of the wheelset microcomputer matching system 9 for storage. At the same time, the wheelset microcomputer matching system 9 generates the storage location address code of the newly repaired wheelset according to the wheelset storage situation and data setting principles, and issues a storage instruction. The data setting principle is as follows: the wheelset storage address code can be arranged according to the partition position of the wheelset storage area, for example, 2150015W, the number 2 represents the second partition of the storage area, 150 represents the maximum number of wheels stored in the partition, 015 represents the storage location of the partition, and W represents that there is no wheelset in the storage location (if there is a wheelset, it can be represented by Y), so as to establish the address code of the wheelset storage location. Each wheelset address code can be used to input information such as wheelset number, wheel diameter, and wheel rim thickness, so that the wheelset microcomputer matching system 9 can search and match wheelset information.

[0047] After the operator pushes the repaired wheelset 7 to the wheelset positioning and rotating device 4, the wheelset positioning and rotating device 4 positions the wheelset 7 and rotates it 90 degrees, and then pushes the wheelset 7 onto the wheelset storage translation device 301, and the wheelset storage translation device 301 transports the wheelset 7 to the designated position in the warehouse.

[0048] After the wheelset intelligent picking and placing device 1 receives the warehousing instruction issued by the wheelset microcomputer matching system 9, the wheelset intelligent picking and placing device 1 moves to the specified position on the running rail 10, and the wheelset grasping mechanism 102 automatically grasps the wheelset 7 on the wheelset warehousing translation device 301, and places the wheelset 7 at the storage position (storage rack 2) allocated by the wheelset microcomputer matching system 9 through the joint movement of the running device 101 and the wheelset grasping mechanism 102.

[0049] When the bogie is assembled, the wheelset model requirements are issued according to the bogie frame model, and the wheelset number, wheel diameter, rim thickness, bearing quality assurance period and other information of the required wheelset are entered into the wheelset microcomputer matching system 9. The wheelset microcomputer matching system 9 queries whether there is a suitable wheelset 7 in the storage repository based on the input wheelset information, and queries the address code of the storage rack 2 where it is located, and then sends a wheel out request; after receiving the wheel out request, the wheelset intelligent picking and placing device 1 runs to the designated wheelset 7 according to the corresponding address code and automatically grabs it, and places the wheelset 7 on the wheelset outbound translation device 302 for caching formation of the wheelset 7.

[0050] The wheelset out-of-warehouse translation device 302 transports the wheelset 7 to the assembly station, and the second wheelset shifting device 8 shifts the wheelset to the assembly area on the first standard rail 601 to realize the assembly of the bogie frame and the wheelset 7.

[0051] All relevant data of the wheelset outgoing and incoming processes are stored in the database of the wheelset microcomputer matching system 9, and are interconnected with the vehicle depot HMIS to realize the wheel axle assembly line station level management of the HMIS and establish the information management of the wheelset automatic matching process.

[0052] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent selection system for railway freight car wheels, characterized in that: It includes running rails, wheelset positioning and rotating device, wheelset storage rack, wheelset storage translation device, wheelset intelligent pick-up and placement device, wheelset outbound translation device and wheelset microcomputer matching system, among which: The wheelset positioning and rotating device comprises a rotating platform and a first wheelset dialing device mounted on the rotating platform, so as to position and rotate the wheelset before the wheelset is stored; A wheelset transfer track is provided between the wheelset positioning and rotating device and the wheelset storage translation device, and the first wheelset thumbwheel device transfers the wheelset on the rotating platform to the wheelset storage translation device through the wheelset transfer track for transport into storage; The wheelset intelligent pick-and-place device comprises a running device and a wheelset grabbing mechanism, wherein the running device is supported by the running rail, and the wheelset grabbing mechanism is installed on the running device to grab the wheelset on the wheelset storage rack for storage, or grab the wheelset on the wheelset storage rack to the wheelset out-of-stock translation device for transport to the assembly station; The assembly station is provided with a first standard rail, and the wheelset out-of-warehouse translation device is provided with a second wheelset dialing device at a position corresponding to the first standard rail, so as to dial the wheelset on the wheelset out-of-warehouse translation device to the first standard rail, thereby realizing the assembly of the wheelset and the bogie frame at the assembly station; The wheelset storage rack adopts a V-shaped support block with an opening facing upward to fix the position of the wheelset. An address code is attached to the ground at each wheelset storage rack so that the wheelset microcomputer matching system can compile the address code of each position and control the wheelset grabbing mechanism to grab the wheelset on the wheelset storage rack at the set address. After receiving the wheelset storage instruction issued by the wheelset microcomputer matching system, the wheelset intelligent pick-up and place device moves to the designated position through the running rail, and the wheelset grabbing mechanism moves down to automatically grab the wheelset, and the wheelset is placed in the storage position on the wheelset storage rack assigned by the wheelset microcomputer matching system through the joint movement of the running device and the wheelset grabbing mechanism; The exit end of the wheelset storage translation device is butted against a second standard rail, and the second standard rail is butted against the first standard rail of the assembly station, and a manual turntable is provided at the junction of the second standard rail and the first standard rail, so as to realize pushing the wheelset from the second standard rail to the assembly area of ​​the first standard rail in the failure mode of the microcomputer matching system; The wheelset microcomputer matching system includes a monitoring management program, a server, a workstation PC, an industrial handheld device, a scanner, and a wireless network construction; the wheelset microcomputer matching system performs two-way communication and real-time monitoring of the wheelset intelligent picking and placing device through wireless industrial Ethernet; the wheelset microcomputer matching system issues operation instructions and receives various status information of the wheelset intelligent picking and placing device, and the wheelset microcomputer matching system has four control modes: maintenance, manual, stand-alone automatic, and online automatic.

2. The intelligent selection system for railway freight car wheels according to claim 1 is characterized in that: A three-axis mobile platform is installed on the running device, a rotating mechanism is installed on the three-axis mobile platform, and the wheelset grabbing mechanism is installed on the rotating mechanism to achieve the lifting and lowering of the wheelset grabbing mechanism in the vertical direction and the lateral and longitudinal movement along the running rail.

3. The intelligent selection system for railway freight car wheels according to claim 1 is characterized in that: The wheelset gripping mechanism has two clamping claws for gripping a group of two wheelsets, thereby realizing the assembly of a bogie frame and a group of wheelsets.

4. The intelligent selection system for railway freight car wheels according to claim 1 is characterized in that: The wheelset intelligent picking and placing device comprises a plurality of devices, which work in cooperation in different areas to pick up and store the wheelset.

5. The intelligent selection system for railway freight car wheels according to claim 1 is characterized in that: The wheelset storage rack adopts a storage method of staggered plane and double-layer arrangement of wheelsets to store wheelsets.

6. The intelligent selection system for railway freight car wheels according to claim 1 is characterized in that: The wheelset intelligent pick-up and placement device communicates with the wheelset microcomputer matching system via wireless industrial Ethernet. The wheelset microcomputer matching system sends operation instructions to the wheelset intelligent pick-up and placement device, receives status information of the wheelset intelligent pick-up and placement device, and monitors the operation of the wheelset intelligent pick-up and placement device.

7. The intelligent selection system for railway freight car wheels according to claim 6 is characterized in that: The wheelset microcomputer matching system communicates with the HMIS data to implement HMIS management at the wheel axle assembly line station level.

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