Steel rail grinding frame and steel rail grinding device

Abstract

The utility model discloses a steel rail polishing frame and a steel rail polishing device. The steel rail polishing frame comprises a main beam assembly, a polishing device frame assembly, an end beam assembly and a walking assembly. The end beam assemblies are arranged at the front end and the rear end of the frame in the operation direction. The main beam assembly is installed in the middle of the upper portion of the end beam assembly, and the grinding device frame assemblies are installed on the two sides of the upper portion of the end beam assembly in the transverse direction. The walking assemblies are installed below the end beam assemblies and symmetrically distributed in the transverse direction. The polishing device frame assembly and the end beam assembly are positioned through the first boss and the first groove. The technical problems that an existing frame structure is poor in bearing performance, and overall machining, assembling and later maintenance are difficult can be solved.

Description

Technical Field

[0001] This application relates to the field of railway engineering machinery technology, and in particular to a rail grinding frame and rail grinding device for use in rail grinding operations. Background Technology

[0002] As a major component of railways, rails are subjected to the cyclical loads of train wheelsets over long periods, making them prone to defects such as corrugation, spalling, cracks, scratches, and edge thickening. Rail grinding is a rail repair technology that eliminates surface defects and extends the service life of rails by polishing their surfaces. The grinding device is the executing mechanism for rail grinding operations and a key component of the rail grinding train, playing a vital role. The grinding device frame, as the direct structure for mounting the grinding units, significantly impacts the overall load-bearing capacity of the grinding device, as well as the accuracy and safety of the grinding operation.

[0003] In the prior art, the following documents are mainly relevant to this application:

[0004] This document is a Chinese invention application (CN103911925A) filed by Beijing Erqi Locomotive Industry Co., Ltd. on April 22, 2014, and published on July 9, 2014. The application discloses a rail grinding vehicle frame, including a longitudinal beam, with a transverse end beam at each end and a transverse crossbeam in the middle of the longitudinal beam. End plates are provided on the outer sides of the two end beams. Side plates are provided at both ends of the end beams and crossbeams. Cover plates are fixed to the upper parts of the longitudinal beam, end beams, and crossbeams. Fire-blocking devices are connected to the lower parts of the end plates and side plates. The frame is equipped with limiting grooves, dust covers, locking devices, etc. This application is applicable to various rail grinding vehicles, used for correcting wavy wear, wheel-rail abrasion, correcting tilting deformation of inner and outer rails, and repairing wheel-rail contact surfaces, as well as other rail defects caused by vehicles traveling on the rails, for preventative maintenance of railway rails.

[0005] However, the rail grinding device frame using this structure still has the following technical defects:

[0006] (1) The rail grinding device has many specifications of frame parts, poor parts versatility, and difficulties in overall processing and assembly.

[0007] (2) The rail grinding device frame adopts a closed structure. The grinding device is equipped with crossbeams inside and on the sides. There is not enough space for inspection and maintenance, making it difficult to maintain the grinding device in the later stage.

[0008] (3) The rail grinding device is designed for a specific grinding unit and the number of grinding heads installed is fixed, and the number of grinding heads cannot be customized according to customer needs. Utility Model Content

[0009] In view of this, the purpose of this application is to provide a rail grinding frame and a rail grinding device to solve the technical problems of poor load-bearing performance of existing frame structures, difficulties in overall processing, assembly, and subsequent maintenance.

[0010] To achieve the aforementioned utility model objectives, this application specifically provides a technical solution for a rail grinding vehicle frame, comprising: a main beam assembly, a grinding device frame assembly, end beam assemblies, and a traveling assembly. The end beam assemblies are disposed at the front and rear ends of the frame along the operating direction. The main beam assembly is installed at the upper center of the end beam assembly, and the grinding device frame assemblies are installed on both sides of the end beam assembly along the transverse direction. The traveling assemblies are installed below the end beam assemblies and are symmetrically distributed along the transverse direction. The grinding device frame assembly and the end beam assembly are positioned together by a first boss and a first groove.

[0011] Furthermore, the main beam assembly includes: a main beam longitudinal beam, a main beam vertical beam, and a main beam base plate. The two ends of the main beam longitudinal beam are connected to the main beam vertical beam, and the main beam base plate is disposed at the bottom of the main beam vertical beam, with a second protrusion for positioning at the bottom of the main beam base plate.

[0012] Furthermore, the main beam assembly also includes a traction nose cover and a traction nose seat. The traction nose cover and the traction nose seat are disposed on the front side of the main beam vertical beam, with the traction nose cover disposed on the traction nose seat.

[0013] Furthermore, the grinding device frame assembly includes: frame longitudinal beams, frame transverse beams, frame vertical beams, and a frame base plate. Two frame longitudinal beams and two frame transverse beams are perpendicularly connected to form the frame body, and the four corners of the frame body are connected to the top of the frame vertical beams. The frame base plate is installed at the bottom of the frame vertical beams, and the frame base plate is provided with a first protrusion for positioning.

[0014] Furthermore, the grinding device frame assembly also includes unit mounting seats, which are disposed on the inner side of the frame longitudinal beams. The installation distance between the unit mounting seats is adjusted according to the number and width of the grinding units.

[0015] Furthermore, the end beam assembly includes: an end beam and an end beam stiffener, wherein the end beam is provided with a first groove that mates with the first boss, and the end beam stiffener is disposed below the end beam.

[0016] Furthermore, the end beam is provided with a second groove that corresponds to and mates with the second boss.

[0017] Furthermore, the traveling assembly includes: a wheel mounting plate, an inner reinforcing plate, and an outer reinforcing plate. The inner and outer reinforcing plates are respectively disposed on both sides of the wheel mounting plate along the lateral direction.

[0018] Furthermore, the wheel mounting plate is equipped with independent wheels.

[0019] This application also provides a specific technical solution for a rail grinding device, including: the frame described above.

[0020] By implementing the technical solution of the rail grinding chassis and rail grinding device provided in this application, the following beneficial effects are achieved:

[0021] (1) The rail grinding frame and rail grinding device of this application adopt a modular frame structure, which reduces the difficulty of frame processing, improves the versatility of parts, and reduces the later maintenance cost;

[0022] (2) The rail grinding vehicle frame and rail grinding device of this application adopt an open structure design on both sides of the frame, which increases the maintenance space, facilitates the disassembly and assembly of parts, and improves the maintainability of the grinding device.

[0023] (3) The rail grinding vehicle frame and rail grinding device of this application, the position of the unit mounting seat can be adjusted according to the number of grinding heads and the form of the unit frame, so that the grinding device frame is universal and the number of grinding heads can be adjusted according to actual needs. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural schematic diagram of a specific embodiment of the rail grinding vehicle frame of this application;

[0026] Figure 2 This is a schematic diagram of the structural composition of a specific embodiment (excluding independent wheels) of the rail grinding vehicle frame of this application;

[0027] Figure 3 This is a schematic top view of a specific embodiment of the rail grinding vehicle frame of this application;

[0028] Figure 4 This is a schematic side view of a specific embodiment of the rail grinding vehicle frame of this application;

[0029] Figure 5 This is a schematic front view of a specific embodiment of the rail grinding vehicle frame of this application;

[0030] Figure 6 This is a schematic diagram of the installation structure of a specific embodiment of the rail grinding vehicle frame of this application;

[0031] Figure 7 This is a three-dimensional structural schematic diagram of a specific embodiment of the rail grinding device of this application;

[0032] Figure 8 This is a side view of the internal structure of a specific embodiment of the rail grinding device of this application;

[0033] Figure 9 This is a top view of the internal structure of a specific embodiment of the rail grinding device of this application;

[0034] Figure 10 This is a schematic top view of a specific embodiment of the rail grinding device of this application;

[0035] Figure 11 This is a perspective view of the internal structure of a specific embodiment of the rail grinding device of this application;

[0036] Figure 12 This is a schematic side view of a specific embodiment of the rail grinding device of this application;

[0037] Figure 13 This is a schematic front view of a specific embodiment of the rail grinding device of this application;

[0038] In the diagram: 1-Frame, 2-Grinding unit, 3-Fireproof and dustproof device, 4-Independent wheel, 101-Frame longitudinal beam, 102-Frame transverse beam, 103-Frame vertical beam, 104-Frame base plate, 105-Main beam longitudinal beam, 106-Main beam vertical beam, 107-Traction nose cover, 108-Traction nose seat, 109-Main beam base plate, 110-End beam, 111-Inner reinforcing plate, 112-Wheel mounting plate, 113-Outer reinforcing plate, 114-End beam stiffener, 115-Unit mounting seat, 116-First boss, 117-First groove, 118-Second boss, 119-Second groove, 100-Rail grinding device. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] As attached Figure 1 To be continued Figure 13 As shown, specific embodiments of the rail grinding vehicle frame and rail grinding device of this application are given. The application will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] Example 1

[0042] As attached Figure 1 To be continued Figure 6 As shown, an embodiment of the rail grinding chassis of this application specifically includes: a main beam assembly, a grinding device frame assembly, an end beam assembly, and a running gear assembly. The end beam assembly is disposed on the chassis 1 along the working direction (i.e., longitudinally, as shown in the attached figure). Figure 1 The direction indicated by L in the middle is as shown in the attached diagram. Figure 1 The direction indicated by W is the transverse direction, and the direction indicated by H is the vertical direction. The main beam assembly is installed above the middle of the end beam assembly, and the grinding device frame assembly is installed on both sides above the end beam assembly along the transverse direction. The traveling assembly is installed below the end beam assembly and is symmetrically distributed along the transverse direction. The grinding device frame assembly and the end beam assembly are positioned together by the first boss 116 and the first groove 117.

[0043] The main beam assembly also includes a main beam vertical beam 106 and a main beam bottom plate 109. The two ends of the main beam longitudinal beam 105 are connected to the main beam vertical beam 106 along the longitudinal direction. The main beam bottom plate 109 is located at the bottom of the main beam vertical beam 106, and a second boss 118 for positioning is provided at the bottom of the main beam bottom plate 109.

[0044] The main beam assembly also includes a traction nose cover 107 and a traction nose seat 108, which are disposed on the front side of the main beam vertical beam 106, with the traction nose cover 107 disposed on the traction nose seat 108.

[0045] The grinding device frame assembly further includes frame longitudinal beams 101, frame transverse beams 102, frame vertical beams 103, and a frame base plate 104. Two frame longitudinal beams 101 and two frame transverse beams 102 are vertically connected to form the frame body, and the four corners of the frame body are connected to the top of the frame vertical beams 103. The frame base plate 104 is installed at the bottom of the frame vertical beams 103, and a first boss 116 for positioning is provided on the frame base plate 104.

[0046] The grinding device frame assembly also includes a unit mounting base 115, which is located inside the frame longitudinal beam 101. The installation distance between the unit mounting bases 115 is adjusted according to the number and width of the grinding units 2.

[0047] The end beam assembly further includes an end beam 110 and an end beam stiffener 114. The end beam 110 is provided with a first groove 117 that mates with the first boss 116, and the end beam stiffener 114 is located below the end beam 110.

[0048] The end beam 110 is further provided with a second groove 119 that corresponds to and engages with the second boss 118.

[0049] The running gear further includes a wheel mounting plate 112, an inner reinforcing plate 111, and an outer reinforcing plate 113. The inner reinforcing plate 111 and the outer reinforcing plate 113 are respectively disposed on both sides of the wheel mounting plate 112 in the transverse direction, and an independent wheel 4 is mounted on the wheel mounting plate 112.

[0050] Example 2

[0051] As attached Figure 7 To be continued Figure 13 As shown, an embodiment of the rail grinding device 100 of this application specifically includes:

[0052] The frame 1 as described in Example 1;

[0053] Fireproof and dustproof device 3 installed on the frame 1;

[0054] The polishing unit 2 is installed on the frame 1 and located inside the fireproof and dustproof device 3.

[0055] The frame 1 includes a main beam assembly and a grinding device frame assembly disposed on both sides of the main beam assembly along the lateral direction.

[0056] The rail grinding device 100 (typically comprising one or more grinding trolleys; in this embodiment, a single grinding trolley structure is specifically described) has lifting and traveling functions, while the grinding unit 2 has lateral movement, downward pressing, and deflection functions. These functional components interact with the entire vehicle via fasteners, cables, hydraulic lines, pneumatic lines, etc. The operation control software, after being compiled, is stored in the vehicle's network control system. The rail grinding device 100 is installed under the vehicle. In non-operating mode, it is suspended from the vehicle body by locking pins; in operating mode, it moves synchronously with the vehicle via a traction column installed under the vehicle body. After stopping operation, the rail grinding device 100 can be lifted and locked using a lifting cylinder. When the rail grinding vehicle is operating on the rail, the rail grinding device 100 rests on the rail and can perform rail grinding operations. The electrical and control systems of the grinding vehicle can control the power supply and operation of the rail grinding device 100.

[0057] The frame 1 adopts modular components, mainly including main beam components, end beam components, frame components, and running gear components. The main beam components and frame components, and the frame components and end beam components, are connected via mating grooves and bolts. All internal components of the main beam components, end beam components, and frame components are welded together. The running gear components are welded to the end beam components, the wheel axles are welded to the running gear components, and the independent wheels 4 are connected to the wheel axles. In this specific embodiment, the frame 1, which originally required integral welding, is designed as multiple independently processable modular components. After independent processing and welding, the various parts are combined together using high-strength bolts, greatly reducing welding deformation and welding stress, while improving subsequent maintainability. The modular frame structure reduces the processing difficulty of the frame 1, improves the commonality of parts, and reduces subsequent maintenance costs. The two side frame components of the frame 1 adopt an open structure design, increasing the maintenance space, facilitating the disassembly and assembly of parts, and improving the maintainability of the grinding device. Meanwhile, the position of the unit mounting base 115 can be adjusted according to the number of grinding heads and the form of the frame assembly, so that the frame 1 of the rail grinding device 100 is universal and the number of grinding heads can be adjusted according to actual needs.

[0058] In the description of this application, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly set on the other element or indirectly set on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0059] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0061] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0062] By implementing the technical solutions of the rail grinding chassis and rail grinding device described in the specific embodiments of this application, the following technical effects can be achieved:

[0063] (1) The rail grinding frame and rail grinding device described in the specific embodiments of this application adopt a modular frame structure, which reduces the difficulty of frame processing, improves the versatility of parts, and reduces the later maintenance cost;

[0064] (2) The rail grinding frame and rail grinding device described in the specific embodiments of this application adopt an open structure design on both sides of the frame, which increases the maintenance space, facilitates the disassembly and assembly of parts, and improves the maintainability of the grinding device.

[0065] (3) The rail grinding frame and rail grinding device described in the specific embodiments of this application can be adjusted according to the number of grinding heads and the form of the unit mounting seat, so that the grinding device frame is universal and the number of grinding heads can be adjusted according to actual needs.

[0066] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0067] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has been disclosed above with reference to preferred embodiments, it is not intended to limit this application. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this application using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the spirit and technical essence of this application. Therefore, any simple modifications, equivalent substitutions, equivalent changes, and modifications made to the above embodiments based on the technical essence of this application without departing from the content of the technical solutions of this application shall still fall within the protection scope of the technical solutions of this application.

Claims

1. A rail grinding cart frame, characterized by, include: The vehicle includes a main beam assembly, a grinding device frame assembly, an end beam assembly, and a traveling assembly. The end beam assembly is located at the front and rear ends of the vehicle frame (1) along the working direction. The main beam assembly is installed at the upper middle part of the end beam assembly, and the grinding device frame assembly is installed on both sides of the end beam assembly along the lateral direction. The traveling assembly is installed below the end beam assembly and is symmetrically distributed along the lateral direction. The grinding device frame assembly and the end beam assembly are positioned by a first boss (116) and a first groove (117).

2. The rail grinder frame of claim 1, wherein, The main beam assembly includes: a main beam longitudinal beam (105), a main beam vertical beam (106), and a main beam bottom plate (109); the two ends of the main beam longitudinal beam (105) are connected to the main beam vertical beam (106) along the longitudinal direction, and the main beam bottom plate (109) is disposed at the bottom of the main beam vertical beam (106), and the bottom of the main beam bottom plate (109) is provided with a second boss (118) for positioning.

3. The rail grinding trolley of claim 2, wherein, The main beam assembly also includes: a traction nose cover (107) and a traction nose seat (108); the traction nose cover (107) and the traction nose seat (108) are disposed on the front side of the main beam vertical beam (106), and the traction nose cover (107) is disposed on the traction nose seat (108).

4. The rail grinding trolley according to claim 2 or 3, characterized in that The grinding device frame assembly includes: frame longitudinal beams (101), frame transverse beams (102), frame vertical beams (103), and frame base plate (104); two frame longitudinal beams (101) and two frame transverse beams (102) are vertically connected to form the frame body, and the four corners of the frame body are connected to the top of the frame vertical beams (103); the frame base plate (104) is installed at the bottom of the frame vertical beams (103), and the frame base plate (104) is provided with a first boss (116) for positioning.

5. The rail grinding cart frame of claim 4, wherein: The grinding device frame assembly also includes a unit mounting base (115), which is located on the inner side of the frame longitudinal beam (101). The installation distance between the unit mounting bases (115) is adjusted according to the number and width of the grinding units (2).

6. The rail grinding frame of claim 2, 3, or 5, wherein, The end beam assembly includes an end beam (110) and an end beam stiffener (114). The end beam (110) is provided with a first groove (117) that cooperates with the first boss (116). The end beam stiffener (114) is located below the end beam (110).

7. The rail grinding trolley of claim 6, wherein: The end beam (110) is provided with a second groove (119) that corresponds to and cooperates with the second boss (118).

8. The rail grinding frame of claim 1, 2, 3, 5, or 7, wherein, The running assembly includes: a wheel mounting plate (112), an inner reinforcing plate (111), and an outer reinforcing plate (113); the inner reinforcing plate (111) and the outer reinforcing plate (113) are respectively disposed on both sides of the wheel mounting plate (112) along the lateral direction.

9. The rail grinding trolley of claim 8, wherein: Independent wheels (4) are mounted on the wheel mounting plate (112).

10. A rail grinding device, characterized in that include: The frame (1) as described in any one of claims 1 to 9.

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