Railway track grinding train grinding trolley loading and unloading moving device
Patent Information
- Application Number
- CN202521774127.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-20
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-08-20
AI Technical Summary
当需要拆卸下来更换或维修打磨小车200时，由于打车架101下面的空间狭小，通用的机械设备无法进行使用，尤其不是在机修车间没有地沟的情况下，更是不方便操作
[0021]由上述本发明提供的技术方案可以看出，本发明实施例提供的一种铁路轨道打磨列车用打磨小车装卸移动装置，可以实现在没有地坑或野外的环境中快速装卸用打磨小车，体积小、重量轻，方便使用，缩短工作时间，提高工作效率。
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Figure CN224692487U_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of mechanical technology, specifically to the field of railway engineering machinery technology, and in particular to a loading and unloading mobile device for a grinding trolley used in railway track grinding trains. Background Technology
[0002] Due to factors such as the power of trains, the natural environment, and the quality of the rails themselves, railway rails frequently suffer damage, resulting in shortened rail life, increased maintenance workload and costs, and even serious impacts on train safety. Rail grinding involves grinding the rolling surface of the rail head by a train to eliminate surface irregularities and defects, restoring the rail head profile to its original design requirements. This slows down the development of surface defects, improves the smoothness of the rail surface, further enhances passenger comfort, reduces wheel-rail noise, and extends the service life of the rails.
[0003] The rail grinding train is an indispensable piece of equipment in railway maintenance. The grinding trolley is the main working device of the rail grinding train. Its function is to repair defects such as wavy wear, thick edges, saddle-shaped wear, and fish scale pattern on the rails under working conditions, thereby improving the working condition of the rail surface and making the train run more smoothly.
[0004] like Figure 1 As shown, the grinding carriage 200 used in the rail grinding train 100 is located under the frame 101 of the rail grinding train 100. When the grinding train is in operation, the grinding carriage 200 needs to be lowered onto the rail for grinding operations; when the grinding train is not in operation, the grinding carriage 200 is suspended in a fixed position under the frame. When it is necessary to disassemble, replace, or repair the grinding carriage 200, the space under the frame 101 is too small for general mechanical equipment to be used, especially in situations where there is no trench in the machine repair shop, making operation inconvenient. Summary of the Invention
[0005] The purpose of this invention is to provide a mobile device for loading and unloading grinding trolleys for railway track grinding trains. This device enables rapid loading and unloading of grinding trolleys in environments without pits or in the field. It is small in size, light in weight, easy to use, shortens working time, and improves work efficiency.
[0006] The technical solution provided by this invention is as follows:
[0007] A loading and unloading mobile device for a grinding trolley used in a railway track grinding train includes a mounting base plate 1 and two sets of supporting rotating wheel assemblies 2;
[0008] The mounting base plate 1 has a rectangular opening 11 in the middle to accommodate the traveling wheels 201 of the grinding carriage;
[0009] The rectangular opening 11 has a rotating wheel mounting hole 12 on each of its front and rear sides in the short axis direction;
[0010] The supporting rotating wheel assembly 2 is embedded in the rotating wheel mounting hole 12. The axis of the supporting rotating wheel 21 of the supporting rotating wheel assembly 2 is perpendicular to the axis of the traveling wheel 201. The dimension of the supporting rotating wheel 21 extending below the lower surface of the mounting base plate 1 is greater than the dimension of the traveling wheel 201 extending below the lower surface of the mounting base plate 1.
[0011] Preferably, the dimension of the supporting rotating wheel 21 extending below the outer diameter of the mounting base plate 1 is 10-30 mm larger than the dimension of the traveling wheel 201 extending below the outer diameter of the mounting base plate 1.
[0012] Preferably, the upper edges of both sides of the rectangular opening 11 along its long axis are chamfered.
[0013] Preferably, the chamfer is a bevel or an arc surface.
[0014] Preferably, the arc surface is a concave arc surface, and the arc surfaces on both sides are adapted to the outer diameter of the traveling wheel 201.
[0015] Preferably, the distance between the two rotating wheel mounting holes 12 and the rectangular opening 11 is different.
[0016] Preferably, the supporting rotating wheel assembly 2 includes two supporting rotating wheels 21 and a fixed supporting shaft 22;
[0017] The fixed support shaft 22 has symmetrical support rotating wheels 21 installed at both ends, and the protruding sections of the two shaft ends are fixedly installed on the mounting base plate 1 on both sides of the rotating wheel mounting hole 12.
[0018] Preferably, the supporting rotating wheel 21 is a rolling bearing.
[0019] Preferably, the fixed support shaft 22 has a shoulder 24 at one end, and the support rotating wheel 21, sleeve 23 and support rotating wheel 21 are installed sequentially at the other end; and then fixed by a round nut 25.
[0020] Preferably, the mounting base plate 1 has reinforcing baffles 13 on its left and right upper surfaces in the front and rear directions, respectively.
[0021] As can be seen from the technical solutions provided by the present invention above, the railway track grinding train loading and unloading mobile device provided by the embodiments of the present invention can realize the rapid loading and unloading of grinding trolleys in environments without pits or in the field. It is small in size, light in weight, convenient to use, shortens working time, and improves work efficiency. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 A schematic diagram showing the installation location of the grinding trolley on an existing railway track grinding train;
[0024] Figure 2 This is a schematic diagram of the main structure of the loading and unloading moving device for the grinding trolley of the railway track grinding train provided in an embodiment of the present invention;
[0025] Figure 3 This is a top view of the loading and unloading mobile device for a grinding trolley used in a railway track grinding train, provided in an embodiment of the present invention.
[0026] Figure 4 This is a schematic diagram of the mounting base structure of the loading and unloading mobile device for the grinding trolley of the railway track grinding train provided in an embodiment of the present invention;
[0027] Figure 5 A schematic diagram of the supporting rotating wheel assembly structure of the loading and unloading moving device for the grinding trolley of the railway track grinding train provided in an embodiment of the present invention. Detailed Implementation
[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.
[0029] First, the following explanations are provided for the terms that may be used in this article:
[0030] The term "and / or" means that either or both can be achieved simultaneously. For example, X and / or Y means that it includes both "X" or "Y" as well as the three cases of "X and Y".
[0031] The terms "comprising," "including," "containing," "having," or other similar semantic descriptions should be interpreted as non-exclusive inclusion. For example, including a technical feature element (such as raw material, component, ingredient, carrier, dosage form, material, size, part, component, mechanism, device, step, process, method, reaction conditions, processing conditions, parameter, algorithm, signal, data, product or article of manufacture, etc.) should be interpreted as including not only the expressly listed technical feature element, but also other technical feature elements that are not expressly listed and are well-known in the art.
[0032] The term "composed of" excludes any technical features not expressly listed. When used in a claim, it closes the claim to exclude all technical features other than those expressly listed, except for associated conventional impurities. If the term appears only in a clause of a claim, it limits the claim to the elements expressly listed in that clause; elements recited in other clauses are not excluded from the overall claim.
[0033] The term "parts by mass" indicates the mass ratio between multiple components. For example, if component X is described as x parts by mass and component Y as y parts by mass, then the mass ratio of component X to component Y is x:y. One part by mass can represent any mass; for example, one part by mass can be expressed as 1 kg or 3.1415926 kg, etc. The sum of the parts by mass of all components is not necessarily 100 parts; it can be greater than 100 parts, less than 100 parts, or equal to 100 parts. Unless otherwise stated, parts, proportions, and percentages mentioned herein are all measured by mass.
[0034] Unless otherwise explicitly specified or limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this document according to the specific circumstances.
[0035] When concentration, temperature, pressure, size, or other parameters are expressed as numerical ranges, such ranges should be understood to specifically disclose all ranges formed by any pairing of upper limits, lower limits, or preferred values within that range, regardless of whether the range is explicitly stated; for example, if the numerical range "2 to 8" is stated, then that range should be interpreted to include ranges such as "2 to 7", "2 to 6", "5 to 7", "3 to 4 and 6 to 7", "3 to 5 and 7", "2 and 5 to 7", etc. Unless otherwise stated, the numerical ranges described herein include both their endpoints and all integers and fractions within that range.
[0036] The terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” and “counterclockwise” 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 and simplification of description and do not imply that the device or component 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 document.
[0037] The embodiments of the present invention will now be described in further detail with reference to the accompanying drawings.
[0038] Example
[0039] like Figures 2 to 5 As shown, a loading and unloading mobile device for a grinding trolley used in railway track grinding trains requires the simultaneous use of four sets of devices. Each set is used to support one traveling wheel 201 during the disassembly of the grinding trolley 200, and the entire device is placed on a flat plate for easy movement. Specifically, it includes a mounting base plate 1 and two sets of supporting rotating wheels assemblies 2; reinforcing baffles 13 are provided on the upper right sides of the mounting base plate 1 in the front and rear directions. The mounting base plate 1 and the reinforcing baffles 13 are welded together, with 5mm weld fillet welds around the perimeter of the reinforcing baffles 13. In this example, the mounting base plate 1 and the reinforcing baffles 13 are cut from 14mm thick Q235A steel plates. The dimensions of the mounting base plate 1 can be 648mm × 340mm, and the dimensions of the reinforcing baffles 13 can be 395mm × 50mm. The reinforcing baffles 13 provide secondary protection and reinforcement.
[0040] like Figure 3 and 4As shown, the mounting base plate 1 has a rectangular opening 11 in the middle to accommodate the traveling wheel 201 of the grinding carriage. When receiving the traveling wheel 201, the lower half of the traveling wheel 201 is embedded in the rectangular opening 11, that is, the rim of the traveling wheel 201 of the grinding carriage 200 is placed in the rectangular opening 11, so that the traveling wheel 201 is fixed and cannot wobble. This makes it safer and more reliable when moving the grinding carriage 200. The specific position should ensure that there is a gap between the upper surface of the mounting base plate 1 and the lower edge of the bearing seat of the traveling wheel 201, and they cannot contact each other. The gap should be controlled at about 100mm. The structural design controls the size of the rectangular opening 11 based on the diameter of the traveling wheel 201. Generally, the length of the rectangular opening 11 is 1 / 2 to 3 / 4 of the diameter of the traveling wheel 201. At the same time, the rim of the traveling wheel 201 is embedded in the rectangular opening 11 in the width direction. For example, if the diameter of the traveling wheel 201 is 302.72mm, the thickness of the traveling wheel 201 is 135mm, the rim thickness is 32mm, and the size of the rectangular opening 11 can be 160mm × 61mm.
[0041] In this example, to reduce wear, the upper edges of both sides of the rectangular opening 11 along its long axis are chamfered. The chamfer is either a bevel or an arc surface. Preferably, the arc surface is concave, and the arc surfaces on both sides are adapted to the outer diameter of the traveling wheel 201. This allows the traveling wheel 201 to be stably embedded in the rectangular opening 11.
[0042] like Figure 3 As shown, a rotating wheel mounting hole 12 is provided on each of the front and rear sides of the rectangular opening 11 along its short axis. In this example, the distances between the two rotating wheel mounting holes 12 and the rectangular opening 11 are different. This ensures that the position of the mounted rotating wheel 2 is not symmetrical relative to the rectangular opening 11, which is beneficial for the overall force support effect when supporting the traveling wheel 201. Generally, the side with the shorter distance is located on the inner side to improve stability. Specifically, in this example, the diameter of the traveling wheel 201 is 302.72mm, the rim thickness is 32mm, and the size of the rectangular opening 11 can be 160mm × 61mm. Therefore, the size of the rotating wheel mounting hole 12 is 160mm × 120mm. The center distance between the two rotating wheel mounting holes 12 is 428mm.
[0043] like Figure 2 As shown, the supporting rotating wheel assembly 2 is embedded in the rotating wheel mounting hole 12. The axis of the supporting rotating wheel 21 of the supporting rotating wheel assembly 2 is set perpendicular to the axis of the traveling wheel 201, that is, the axis of the supporting rotating wheel 21 is parallel to the long axis of the rectangular opening 11.
[0044] like Figure 4As shown, the supporting rotating wheel assembly 2 includes two supporting rotating wheels 21 and a fixed supporting shaft 22. The supporting rotating wheels 21 are symmetrically mounted on both ends of the fixed supporting shaft 22. Furthermore, the axes of the supporting rotating wheels 21 and the traveling wheels 201 are symmetrical about each other, specifically about the short axis of the rectangular opening 11, thus improving stability. The extended sections of the two ends of the fixed supporting shaft 22 are fixedly mounted on the mounting base plates 1 on both sides of the rotating wheel mounting holes 12. Specifically, the mounting base plates 1 have threaded holes, which are fixed using bolts 27 and washers 28. The threaded holes on the mounting base plates 1 are M16, with a hole spacing of 190mm between the two M16 holes. The bolts 27 can be GB / T5782 M16X35-8.8 bolts, and the washers 28 are GB / T93 16 spring washers, tightened with a torque of 196 N·m.
[0045] Specifically, in this example, the supporting rotating wheel 21 uses a rolling bearing. Rolling bearings can withstand greater weight than ordinary wheels, have a simple installation structure, and do not require long-distance transportation, fully meeting the usage requirements.
[0046] In this example, the fixed support shaft 22 has a shoulder 24 at one end, and a support rotating wheel 21, a sleeve 23, and the support rotating wheel 21 are sequentially installed at the other end; it is then fixed by a round nut 25, which is the installation structure of the rolling bearing. A retaining washer 26 is also installed at the round nut 25 to prevent the round nut 25 from loosening.
[0047] In this example, the fixed support shaft 22 is made of 45# steel with heat treatment, which has good comprehensive mechanical properties and can extend its service life; the round nut 25 adopts GB / T812 M42X1.5, and has four evenly distributed slots on its shape. The slots have two main functions: firstly, they are used with hook wrenches to facilitate installation and disassembly; secondly, the slots cooperate with the locking washer 26 to prevent the nut from loosening under vibration or impact, thus playing an anti-loosening role; the locking washer 26 adopts GB / T858 42, which is a locking washer specifically for round nuts, and is used in conjunction with the round nut GB / T812 M42X1.5; the sleeve 23 is made of ordinary Q235A material, and is made of steel pipe with a diameter of 56mm and a wall thickness of 10mm, which is processed into a sleeve with a diameter of 54mm and a wall thickness of 4mm; the rolling bearing adopts rolling bearing 6309-2RS1, which has a double-sided contact sealing structure, which can effectively prevent the intrusion of contaminants and has the characteristics of low noise and long service life.
[0048] In this example, structurally, the dimension by which the outer diameter of the supporting rotating wheel 21 extends beyond the lower surface of the mounting base plate 1 is greater than the dimension by which the outer diameter of the traveling wheel 201 extends beyond the lower surface of the mounting base plate 1. This is to prevent the traveling wheel 201 from directly contacting the flat plate below, which would cause the entire device to malfunction. In practice, the dimension by which the outer diameter of the supporting rotating wheel 21 extends beyond the lower surface of the mounting base plate 1 is greater than the dimension by which the outer diameter of the traveling wheel 201 extends beyond the lower surface of the mounting base plate 1 is 10–30 mm. These dimensions require structural design to achieve and are easily implemented by those skilled in the art, and will not be elaborated further.
[0049] Working principle: In special circumstances, when the rail grinding train 100 is on the track that has not been disassembled, and it is necessary to disassemble individual grinding trolleys 200 for replacement or maintenance, the four "railway rail grinding train grinding trolley loading and unloading moving devices" are placed under the four running wheels 201 of the grinding trolley 200 to be disassembled. Using the manual lowering function, the grinding trolley 200 to be disassembled is slowly lowered from the frame position onto the track. During the lowering, the "railway rail grinding train grinding trolley loading and unloading moving devices" need to be moved. The position of the grinding trolley 200 is such that the rims of the four traveling wheels 201 of the grinding trolley 200 fall into the rectangular opening 11 in the middle of the "grinding trolley loading and unloading moving device for railway track grinding train". After the grinding trolley 200 has descended, a pulling force is applied from one side of the grinding trolley 200, and the supporting rotating wheel 21 of the "grinding trolley loading and unloading moving device for railway track grinding train" rotates, moving the grinding trolley 200 from inside the track grinding train 100 to the outside. Usually, a flat plate needs to be laid on the track, and the whole operation is carried out on the flat plate.
[0050] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.
Claims
1. A loading and unloading mobile device for a grinding trolley used in a railway track grinding train, characterized in that, Includes mounting base plate (1) and two sets of supporting rotating wheels assembly (2); The mounting base plate (1) has a rectangular opening (11) in the middle to accommodate the traveling wheel (201) of the grinding trolley. The rectangular opening (11) has a rotating wheel mounting hole (12) on each of its front and rear sides in the short axis direction; The supporting rotating wheel assembly (2) is embedded in the rotating wheel mounting hole (12). The axis of the supporting rotating wheel (21) of the supporting rotating wheel assembly (2) is perpendicular to the axis of the traveling wheel (201). The size of the supporting rotating wheel (21) extending below the outer diameter of the mounting base plate (1) is greater than the size of the traveling wheel (201) extending below the outer diameter of the mounting base plate (1).
2. The loading and unloading mobile device for a grinding trolley used in a railway track grinding train according to claim 1, characterized in that, The dimension of the support rotating wheel (21) extending below the outer diameter of the mounting base plate (1) is 10-30 mm larger than the dimension of the running wheel (201) extending below the outer diameter of the mounting base plate (1).
3. The loading and unloading mobile device for a grinding trolley used in a railway track grinding train according to claim 1 or 2, characterized in that, The rectangular opening (11) has chamfers on the upper edges of both sides of the hole along its long axis.
4. The loading and unloading mobile device for a grinding trolley used in a railway track grinding train according to claim 3, characterized in that, The chamfer is either a bevel or a curved surface.
5. The loading and unloading mobile device for a grinding trolley used in a railway track grinding train according to claim 4, characterized in that, The arc surface is a concave arc surface, and the arc surfaces on both sides are adapted to the outer diameter of the running wheel (201).
6. The loading and unloading moving device for a grinding trolley used in a railway track grinding train according to claim 1 or 2, characterized in that, The distance between the two rotating wheel mounting holes (12) and the rectangular opening (11) is different.
7. The loading and unloading mobile device for a grinding trolley used in a railway track grinding train according to claim 1 or 2, characterized in that, The supporting rotating wheel assembly (2) includes two supporting rotating wheels (21) and a fixed supporting shaft (22). The fixed support shaft (22) is symmetrically equipped with support rotating wheels (21) at both ends, and the two shaft ends are respectively fixedly installed on the mounting base plate (1) on both sides of the rotating wheel mounting hole (12).
8. The loading and unloading mobile device for a grinding trolley used in a railway track grinding train according to claim 7, characterized in that, The supporting rotating wheel (21) is made of rolling bearing.
9. The loading and unloading mobile device for a grinding trolley used in a railway track grinding train according to claim 7, characterized in that, The fixed support shaft (22) has a shoulder (24) at one end, and a support rotating wheel (21), a sleeve (23) and a support rotating wheel (21) are installed sequentially from the other end; and then fixed by a round nut (25).
10. The loading and unloading moving device for a grinding trolley used in a railway track grinding train according to claim 1 or 2, characterized in that, The mounting base plate (1) has reinforcing baffles (13) on its upper surface on both sides in the front and back directions.