Wheel tread cleaning device and rail train

Abstract

The utility model discloses a wheel tread cleaning device and a rail train. The wheel tread cleaning device comprises at least one grinding block. The brake head is in an arc shape, the arc length of the brake head is 1 / 4-1 / 2 of the perimeter of a train wheel, the grinding blocks are sequentially and detachably installed on the brake head in the length direction of the brake head, and the whole grinding surfaces of all the grinding blocks are in an arc shape; and the driving component is connected with the brake head and is used for driving the brake head to drive the grinding block to act on a wheel tread. The number of the grinding blocks installed on the brake head can be dismounted and adjusted according to actual needs, the length of the grinding blocks of the whole device can be adjusted, and therefore the application range of the cleaning device is widened, the rounding effect can be achieved on wheels with different diameters and polygons with different orders, especially for large-wheel-diameter wheels and polygons with the main order being three or more, and the service life of the cleaning device is prolonged. And a good shaping effect can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of rail vehicle equipment, and in particular to a wheel tread cleaning device and a rail vehicle. Background Art

[0002] At present, rail vehicles have become one of the main means of transportation, and their operating safety has always attracted people's attention. As an important running component in the bogie, the wheel tread is always the key to the safe operation of the whole vehicle. However, the polygonal development of the wheel is a technical problem in the field of rail vehicles. The wheel polygon will cause abnormal vibration and resonance problems of the vehicle, affecting the comfort and safety of the vehicle. Since the formation mechanism of the wheel polygon is relatively complex, the polygon expression of different models is also different. At present, there is a lack of effective solutions to the polygonal development of the wheel.

[0003] Tread cleaners are believed to have a certain rounding effect on wheel treads, and have a great inhibitory effect on minor damage to wheel treads and the development of early polygonal wheels. Tread cleaners are usually installed on rail vehicles in correspondence with wheels. They rub against the wheel treads through grinding blocks (or "grinding pieces"), playing a certain role of "online wheel repair and processing". They have the functions of tread cleaning, wheel shaping, wheel-rail adhesion enhancement, etc., and can effectively improve the braking performance and comfort performance of trains.

[0004] However, the application range of traditional tread cleaners is relatively poor, and they only work well on small-diameter wheels and high-order polygons (for example, the main step is 22) such as EMUs. However, for locomotives with large wheel diameters or polygons with low main steps (for example, the main step is 6-8), their shaping effect is relatively poor.

[0005] Therefore, how to provide a wheel tread cleaning device that can better round wheels of different diameters and polygons of different orders is a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0006] In order to solve the above-mentioned technical problems, the present application provides a wheel tread cleaning device, which has strong applicability and can play a good rounding effect on wheels of different diameters and polygons of different orders, especially for polygons with large wheel diameters and main orders above 3, and can have a good shaping effect.

[0007] The technical solutions provided by this application are as follows:

[0008] A wheel tread cleaning device comprises: at least one grinding block;

[0009] A brake shoe support, wherein the brake shoe support is arc-shaped, and the arc length of the brake shoe support is 1 / 4 to 1 / 2 of the circumference of the train wheel, and the grinding blocks are detachably mounted on the brake shoe support in sequence along the length direction of the brake shoe support, and the grinding surfaces of all the grinding blocks are arc-shaped as a whole;

[0010] A driving component is connected to the brake shoe support and is used to drive the brake shoe support to drive the grinding block to act on the wheel tread.

[0011] Furthermore, a slot is provided on the brake shoe support, and the grinding block is detachably installed in the slot, and the grinding block is fixed in the slot by bolts.

[0012] Furthermore, the bolt includes a first bolt and a second bolt, the first bolt is used to fix the grinding block to the bottom of the slot, and the second bolt is used to fix the grinding block to the side wall of the slot.

[0013] Furthermore, a protrusion is provided on the inner side of the side wall of the slot, a groove is provided on the side of the grinding block, the grinding block is installed in the slot, and the protrusion is stuck in the groove.

[0014] Furthermore, suspension mechanisms are provided at both ends of the brake shoe support, and the suspension mechanisms are used to suspend and install the two ends of the brake shoe support on the frame of the train, and enable the brake shoe support to move relative to the frame.

[0015] Furthermore, the suspension mechanism comprises a screw rod with a head, the screw rod passes through the end of the brake block support and cooperates with a nut to movably mount the brake block support on the train, and the brake block support can move along the screw rod.

[0016] Furthermore, a spring is sleeved on the screw rod, and the spring is located on a side of the brake shoe holder away from the driving component.

[0017] Furthermore, an elastic member is provided between the driving component and the brake shoe support.

[0018] Furthermore, the driving component is mounted on a component of the train via a mounting seat.

[0019] A rail train is provided with at least one wheel tread cleaning device as described above.

[0020] The wheel tread cleaning device provided by the utility model has a brake shoe support in an arc shape and is arranged along the circumference of the wheel. The grinding blocks are detachably installed on the brake shoe support in sequence along the length direction of the brake shoe support. The driving component drives the brake shoe support close to the wheel so that the grinding blocks contact the wheel tread and grind the wheel tread during the rotation of the wheel. Since the brake shoe support is relatively long, the number of grinding blocks installed on the brake shoe support can be disassembled and adjusted according to the wheels of different wheel diameters or the order of polygon development, so as to adjust the overall length of the grinding blocks of the device so that the overall length of the grinding blocks can adapt to the grinding requirements of grinding different wheel treads, thereby improving the application range of the cleaning device, and can play a rounding role for wheels of different diameters and polygons of different orders. The number of grinding blocks is increased so that the overall length of the grinding blocks reaches 1 / 4 to 1 / 2 of the circumference of the wheel, especially for large wheel diameter wheels and polygons with a main order of more than 3 orders, which can play a good shaping effect. The application also provides a rail vehicle, including the above-mentioned wheel tread cleaning device, which also has the above-mentioned beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the structure of the wheel tread cleaning device in the embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of a wheel tread cleaning device installed on a train component in an embodiment of the present application;

[0024] Figure 3 It is a partial schematic diagram of the brake shoe support of the wheel tread cleaning device in the embodiment of the present application;

[0025] Figure 4 This is a structural schematic diagram of a wheel tread cleaning device according to another embodiment of the present application;

[0026] Figure 5 It is a cross-sectional view of the driving component position of the wheel tread cleaning device in the embodiment of the present application.

[0027] Figure numerals: grinding block 1, brake shoe support 2, driving component 3, wheel 4, slot 5, first bolt 6, second bolt 7, protrusion 8, groove 9, screw rod 10, spring 11, elastic member 12, mounting seat 13, connecting seat 14. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly 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.

[0030] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0032] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0033] Although the grinding wheel of the prior art tread cleaner directly acts on the tread, the length of the grinding wheel is limited and cannot be adjusted. For wheels 4 with large wheel diameters, or wheels 4 with low polygonal order and long wavelengths, the grinding wheel will follow the contour. Contour following means that the path of the relative movement between the grinding wheel and the tread of the wheel 4 is from the peak to the trough of the polygon or from the trough to the peak. During this movement, the grinding wheel follows between the peak and the trough, grinding the tread of the wheel 4 more evenly, without grinding the peak, and thus cannot improve or eliminate the polygon. Its effect is equivalent to a kind of "profiling processing", which cannot eliminate the wheel 4 polygon with a wavelength greater than the length of the grinding wheel, and cannot achieve the rounding effect.

[0034] like Figure 1 , Figure 2 and Figure 4 As shown, an embodiment of the present application provides a wheel 4 tread cleaning device, comprising: at least one grinding block 1; a brake shoe support 2, the brake shoe support 2 is arc-shaped, and the arc length of the brake shoe support 2 is 1 / 4 to 1 / 2 of the circumference of the train wheel 4, the grinding blocks 1 are detachably installed on the brake shoe support 2 in sequence along the length direction of the brake shoe support 2, and the grinding surfaces of all the grinding blocks 1 are arc-shaped as a whole; a driving component 3, the driving component 3 is connected to the brake shoe support 2, and is used to drive the brake shoe support 2 to drive the grinding blocks 1 to act on the wheel 4 tread.

[0035] The wheel 4 tread cleaning device provided by the present embodiment has an arc-shaped brake shoe support 2 arranged along the circumference of the wheel 4, and the grinding blocks 1 are detachably installed on the brake shoe support 2 in sequence along the length direction of the brake shoe support 2. The driving component 3 drives the brake shoe support 2 to approach the wheel 4, so that the grinding blocks 1 contact the tread of the wheel 4, and grind the tread of the wheel 4 during the rotation of the wheel 4. Since the brake shoe support 2 is relatively long, the number of grinding blocks 1 installed on the brake shoe support 2 can be disassembled and adjusted according to the wheels 4 of different wheel diameters or the order of development of the polygon, so as to adjust the overall length of the grinding blocks 1 of the device, so that the overall length of the grinding blocks 1 is greater than the wavelength of the main-order polygon, so that the grinding blocks 1 play a rounding role of only grinding the peaks of the polygons but not grinding the troughs, thereby improving the application range of the cleaning device, and can play a rounding role for wheels 4 of different diameters and polygons of different orders. The number of grinding blocks 1 is increased, so that the overall length of the grinding blocks 1 reaches 1 / 4 to 1 / 2 of the circumference of the wheel 4, especially for large-diameter wheels 4 and polygons with a main order of more than 3 orders, which can achieve a good shaping effect.

[0036] Specifically, for locomotives, the diameter of the general large wheel diameter is 1250mm, the length of the brake shoe support 2 is preferably 1000mm, the length of the grinding block 1 is 200mm, and a maximum of 5 grinding blocks 1 can be installed on a brake shoe support 2. Of course, the length of the grinding block 1 can also be other sizes, as long as the overall length of the grinding block 1 is greater than the distance (or wavelength) between the main orders of the polygons of the wheel 4 to be ground. According to actual needs, one, two, three or more numbers can be set, and the overall length of the grinding block 1 can be 200mm, 400mm, 600mm, 800mm, 10000mm respectively. Taking the wheel 4 with a wheel diameter of 1250mm as an example, the overall length of the grinding block 1 is 10000mm, which can effectively round the polygons of 4 to 20 main orders, and the applicable range is very wide. The brake shoe support 2 can be integrally formed or a split structure. In this embodiment, the brake shoe support 2 is composed of several sections of the brake shoe support 2 base body spliced ​​in sequence along the length direction to form a larger arc. There is a certain gap between adjacent grinding blocks 1 to facilitate heat dissipation.

[0037] In this embodiment, preferably, a slot 5 is provided on the brake shoe support 2, and the grinding block 1 is detachably installed in the slot 5, and the grinding block 1 is fixed in the slot 5 by bolts. Specifically, a slot 5 is provided on the side of the brake shoe support 2 close to the wheel 4, and the grinding block 1 is installed in the slot 5. The two side walls of the slot 5 can limit the grinding block 1 to move axially along the wheel 4. The slot 5 is provided with a mounting hole, and the grinding block 1 is correspondingly provided with a screw hole, and the grinding block 1 is fixed in the slot 5 by bolts passing through the mounting hole and the screw hole.

[0038] This embodiment optimizes the above technical solution, and the bolts include a first bolt 6 and a second bolt 7, wherein the first bolt 6 is used to fix the grinding block 1 to the bottom of the slot 5, and the second bolt 7 is used to fix the grinding block 1 to the side wall of the slot 5. Specifically, the first bolt 6 is perpendicular to the bottom of the slot 5, and the first bolt 6 passes through the mounting hole at the bottom of the slot to be threadedly connected and fixed to the grinding block 1, the end of the first bolt 6 is located inside the grinding block 1, and the second bolt 7 is perpendicular to the side wall of the slot 5, that is, the second bolt 7 is arranged perpendicular to the first bolt 6, and the first bolt 6 passes through the side wall of the slot 5 and the grinding block 1, and is locked with the nut.

[0039] This embodiment is preferred, such as Figure 3 and Figure 5As shown, a protrusion 8 is provided on the inner side of the side wall of the slot 5, a groove 9 is provided on the side of the grinding block 1, the grinding block 1 is installed in the slot 5, and the protrusion 8 is stuck in the groove 9. Specifically, the inner side of the two side walls of the slot 5 is symmetrically provided with protrusions 8 along the extension direction of the slot 5, and the two side surfaces of the grinding block 1 are correspondingly provided with grooves 9. The grinding block 1 is stuck in the slot 5 through the cooperation of the protrusion 8 and the groove 9, so that the grinding block 1 can be limited to move radially along the wheel 4, and the grinding block 1 and the brake shoe support 2 are fixed with bolts.

[0040] In order to facilitate the control of the movement of the brake shoe support 2, in this embodiment, a suspension mechanism is provided at both ends of the brake shoe support 2, and the suspension mechanism is used to suspend and install the two ends of the brake shoe support 2 on the frame of the train, and enable the brake shoe support 2 to move relative to the frame. The brake shoe support 2 is suspended and installed on the frame of the train through the suspension mechanism, so that the brake shoe support 2 is limited in both the longitudinal and lateral directions, so that the driving component 3 drives the brake shoe support 2 to move and position better.

[0041] Specifically, the suspension mechanism includes a screw rod 10 with a head, the screw rod 10 passes through the end of the brake shoe support 2 and cooperates with a nut to movably install the brake shoe support 2 on the train, and the brake shoe support 2 can move along the screw rod 10. Limiting holes are set at both ends of the brake shoe support 2, and the screw rod 10 passes through the limiting holes to movably connect the two ends of the brake shoe support 2 with the train components. When the driving component 3 drives the brake shoe support 2 to move close to the wheel 4, the two ends of the brake shoe support 2 can move along the screw rod 10 relative to the component.

[0042] As an implementation mode, in this embodiment, a spring 11 is sleeved on the screw rod 10, and the spring 11 is located on the side of the brake shoe support 2 away from the driving component 3. In the non-working state, the brake shoe support 2 and the grinding block 1 thereon maintain a certain distance from the wheel 4. In the working state, the driving component 3 drives the brake shoe support 2 to compress the spring 11 and move toward the wheel 4, and the grinding block 1 acts on the tread of the wheel 4. Since the screw rod 10 and the spring 11 thereon cooperate to adapt to the relative displacement of the frame and the wheel 4, the grinding block 1 improves the rounding effect of the wheel 4.

[0043] In this embodiment, an elastic member 12 is provided between the driving component 3 and the brake shoe support 2. Specifically, a connecting seat 14 is fixedly provided in the middle of one side of the brake shoe support 2 away from the grinding block 1, and the driving component 3 is a kind of cylinder, oil cylinder or electric cylinder. Preferably, the driving component 3 is a cylinder, and the cylinder telescopic rod is connected to the connecting seat 14. An elastic member 12 is provided between the outer cylinder of the cylinder and the connecting seat 14, and the elastic member 12 is preferably rubber or a spring 11.

[0044] In this embodiment, the driving component 3 is mounted on the train component through the mounting seat 13. Specifically, a rubber pad is provided between the driving component 3 and the mounting seat 13, and the driving component 3 is elastically mounted on the train frame.

[0045] This embodiment also provides a rail train, which is provided with at least one wheel 4 tread cleaning device. The rail train includes the wheel 4 tread cleaning device, and also has the above-mentioned beneficial effects of the wheel 4 tread cleaning device, which will not be repeated here.

[0046] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wheel tread cleaning device, characterized in that: include: at least one grinding block; A brake shoe support, wherein the brake shoe support is arc-shaped, and the arc length of the brake shoe support is 1 / 4 to 1 / 2 of the circumference of the train wheel, and the grinding blocks are detachably mounted on the brake shoe support in sequence along the length direction of the brake shoe support, and the grinding surfaces of all the grinding blocks are arc-shaped as a whole; A driving component is connected to the brake shoe support and is used to drive the brake shoe support to drive the grinding block to act on the wheel tread.

2. The wheel tread cleaning device according to claim 1, characterized in that: The brake shoe support is provided with a slot, the grinding block is detachably mounted in the slot, and the grinding block is fixed in the slot by bolts.

3. The wheel tread cleaning device according to claim 2, characterized in that: The bolts include a first bolt and a second bolt, wherein the first bolt is used to fix the grinding block to the bottom of the slot, and the second bolt is used to fix the grinding block to the side wall of the slot.

4. The wheel tread cleaning device according to claim 2, characterized in that: A protrusion is arranged on the inner side of the side wall of the slot, a groove is arranged on the side of the grinding block, the grinding block is installed in the slot, and the protrusion is stuck in the groove.

5. The wheel tread cleaning device according to claim 1 or 2, characterized in that: Suspension mechanisms are provided at both ends of the brake shoe support, and the suspension mechanisms are used to suspend and install the two ends of the brake shoe support on the frame of the train, and enable the brake shoe support to move relative to the frame.

6. The wheel tread cleaning device according to claim 5, characterized in that: The suspension mechanism comprises a screw rod with a head, the screw rod passes through the end of the brake block support and cooperates with a nut to movably install the brake block support on the train, and the brake block support can move along the screw rod.

7. The wheel tread cleaning device according to claim 6, characterized in that: A spring is sleeved on the screw rod, and the spring is located at a side of the brake shoe support away from the driving component.

8. The wheel tread cleaning device according to claim 1, characterized in that: An elastic member is arranged between the driving component and the brake shoe support.

9. The wheel tread cleaning device according to claim 1 or 8, characterized in that: The driving component is mounted on a component of the train via a mounting seat.

10. A rail train, characterized in that: The rail vehicle is provided with at least one wheel tread cleaning device as described in any one of claims 1-9.

Images