Roller device for switch

Abstract

Embodiments of the present application relate to a roller device for a switch. The roller device comprises: a frame comprising a first frame and a second frame located directly above the first frame, wherein the first frame and the second frame are assembled to form a first group of mounting grooves and a second group of mounting grooves, the first group of mounting grooves and the second group of mounting grooves are all regular hexagonal grooves, the bottoms of the first group of mounting grooves and the second group of mounting grooves are planes, and the groove centers of the first group of mounting grooves and the second group of mounting grooves are not collinear; a supporting member provided between the first frame and the second frame and used for supporting the frames; and roller bodies each comprising a roller shaft having an eccentric structure and a roller sleeved on the roller shaft, wherein each roller body is provided in the first group of mounting grooves or the second group of mounting grooves by means of the shaft ends at two ends of the roller body, the shaft ends are regular hexagonal shafts, and the shaft ends are respectively matched with the first group of mounting grooves and the second group of mounting grooves. The present application implements the change adjustment of the height of the roller bodies by means of the roller shafts each having an eccentric structure.

Description

A roller device for turnout Technical Field

[0001] The embodiments of the present application relate to the technical field of railway turnouts, and in particular to a roller device for a turnout. Background Art

[0002] Roller assemblies are used in domestic turnouts with speeds up to 200 km / h, high-speed railway turnouts, and some urban rail and metro rail systems. By adjusting the roller height to raise the point rail, the roller assembly converts sliding friction between the point rail base and the slide bed into rolling friction, effectively reducing point rail switching resistance, minimizes insufficient point rail displacement, and mitigates wear on the point rail and slide bed. Currently, the Schweiger roller assembly is the most widely used, and is almost exclusively used on high-speed railway turnouts, with limited use on conventional and metro rail turnouts.

[0003] In the related art, the eccentric adjustable height turnout roller device with application number 202111073983.8 has an eccentric core shaft structure, and the end face of the core shaft is an octagonal structure. The core shaft limits the displacement of the roller body within the roller body frame through the octagonal structure. When the octagonal structure is set in the roller body frame, the bottom of the core shaft end and the frame are in point-to-surface contact. This point-to-surface contact method will reduce the force-bearing area of ​​the roller shaft end, resulting in poor durability of the roller device. In addition, the axes of the two core shafts are collinear, which causes deviations in the adjustment effect of the roller device.

[0004] Therefore, it is necessary to improve one or more problems existing in the above-mentioned related technical solutions.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field.

[0006] Utility Model Content

[0007] The purpose of the embodiments of the present application is to provide a roller device for a turnout, thereby overcoming one or more problems caused by the limitations and defects of the related art at least to a certain extent.

[0008] According to a first aspect of an embodiment of the present application, there is provided a turnout roller device, comprising:

[0009] The frame comprises a first frame and a second frame located directly above the first frame, wherein the first frame and the second frame are assembled to form a first group of mounting slots and a second group of mounting slots; wherein the first group of mounting slots and the second group of mounting slots are both regular hexagonal slots, the bottoms of the first group of mounting slots and the second group of mounting slots are flat, and the centers of the first group of mounting slots and the second group of mounting slots are not collinear;

[0010] a support member, disposed between the first frame and the second frame, for supporting the frames;

[0011] A roller body, comprising an eccentric roller shaft and a roller sleeved on the roller shaft, wherein the roller body is arranged in the first group of mounting grooves or the second group of mounting grooves through shaft ends at both ends of the roller body, wherein the shaft ends are regular hexagonal shafts, and the shaft ends are matched with the first group of mounting grooves and the second group of mounting grooves respectively;

[0012] When the roller shaft rotates, the roller can rotate along with the rotation of the roller shaft to achieve the change adjustment of the roller body height.

[0013] In one embodiment of the present application, the support member includes a support frame or a single roller.

[0014] In one embodiment of the present application, when the support member includes a single roller, the single roller is arranged in the second group of mounting grooves or the first group of mounting grooves.

[0015] In one embodiment of the present application, an anti-slip mechanism is provided on the single roller shaft to prevent the single roller shaft from falling off.

[0016] In one embodiment of the present application, when the support member includes a support frame, the support frame is arranged between the first frame and the second frame to support the frame.

[0017] In one embodiment of the present application, further comprising:

[0018] Two ballast retaining plates are respectively arranged at two ends of the bottom of the first frame.

[0019] In one embodiment of the present application, a boss is provided on the roller shaft, and the boss is located on the outer side of the corresponding shaft end.

[0020] In one embodiment of the present application, a shoulder is provided on the boss, and a seal is provided between the shoulder and the roller.

[0021] In one embodiment of the present application, the first frame and the second frame are mounted via fixing members.

[0022] According to a second aspect of an embodiment of the present application, a turnout roller device is provided, comprising:

[0023] A frame comprising a first frame and a second frame located directly above the first frame, wherein the first frame and the second frame are assembled to form a first set of mounting slots and a second set of mounting slots; wherein the first set of mounting slots and the second set of mounting slots are both regular hexagonal slots, the bottoms of the first set of mounting slots and the second set of mounting slots are flat, and the centers of the first set of mounting slots and the second set of mounting slots are not collinear;

[0024] a support member, disposed between the first frame and the second frame bracket, for supporting the frame;

[0025] Two roller bodies, each comprising an eccentric roller shaft and a roller sleeved on the roller shaft; one of the roller bodies is disposed in the first set of mounting grooves via its shaft ends at both ends, and the other roller body is disposed in the second set of mounting grooves via its shaft ends at both ends; wherein the shaft ends are regular hexagonal shafts, the shaft end located in the first set of mounting grooves matches the first set of mounting grooves, and the shaft end located in the second set of mounting grooves matches the second set of mounting grooves;

[0026] When each roller shaft of the eccentric structure rotates, the rollers can rotate along with the rotation of the roller shaft of the respective eccentric structure, so as to achieve the variable adjustment of the height of each roller body.

[0027] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:

[0028] In an embodiment of the present application, through the above-mentioned device, on the one hand, a first set of mounting grooves and a second set of mounting grooves are set in the frame, and the first set of mounting grooves and the second set of mounting grooves are regular hexagonal grooves. The roller body is set in the first set of mounting grooves or the second set of mounting grooves through the shaft ends at both ends. Since the roller shaft is an eccentric structure, when the roller shaft rotates, the roller can rotate with the roller shaft, thereby achieving the change and adjustment of the height of the roller body. On the other hand, since the bottom of the first set of mounting grooves and the second set of mounting grooves is flat, the bottom of the shaft end is in surface contact with the frame, and the force-bearing area of ​​the shaft end of the roller shaft is large, thereby improving the durability of the roller device. In addition, a support member is provided between the first frame and the second frame to facilitate supporting the frame, making the structure of the frame more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0030] FIG1 shows a front view of a turnout roller device in an exemplary embodiment of the present application;

[0031] FIG2 shows a top view of FIG1 of the present application;

[0032] FIG3 is a schematic structural diagram of a framework in an exemplary embodiment of the present application;

[0033] FIG4 is a schematic structural diagram of a roller body in an exemplary embodiment of the present application;

[0034] FIG5 is a schematic structural diagram showing an eccentric roller shaft in an exemplary embodiment of the present application;

[0035] FIG6 shows a left side view of a roller shaft of an eccentric structure in an exemplary embodiment of the present application;

[0036] FIG7 shows a front view of another switch roller device in an exemplary embodiment of the present application;

[0037] FIG. 8 shows a top view of FIG. 7 of the present application.

[0038] In the figure: 100, frame; 110, first frame; 120, second frame; 200, roller body; 210, roller shaft; 220, roller; 230, bearing; 300, first mounting groove; 400, second mounting groove; 500, single roller; 600, support frame; 700, ballast plate; 800, boss; 900, shoulder; 1000, fixing part; 1100, sealing part. DETAILED DESCRIPTION

[0039] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0040] In addition, the accompanying drawings are merely schematic illustrations of embodiments of the present application and are not necessarily drawn to scale. Identical reference numerals in the drawings represent identical or similar parts, and thus repeated descriptions thereof will be omitted. Some of the blocks shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0041] In this exemplary embodiment, a turnout roller device is first provided, which includes a frame 100 , a support member, and a roller body 200 , as shown in FIG1 . Among them, the frame 100 includes a first frame 110 and a second frame 120 located directly above the first frame 110, and the first frame 110 and the second frame 120 are spliced ​​to provide a first group of mounting grooves and a second group of mounting grooves; the first group of mounting grooves and the second group of mounting grooves are both regular hexagonal grooves, the bottoms of the first group of mounting grooves and the second group of mounting grooves are flat, and the groove centers of the first group of mounting grooves and the second group of mounting grooves are not colinear; the support member is arranged between the first frame 110 and the second frame 120, for supporting the frame 100; the roller body 200 includes an eccentric roller shaft 210 and a roller 220 sleeved on the roller shaft 210, the roller body 200 is arranged in the first group of mounting grooves or the second group of mounting grooves through the shaft ends at both ends of the roller body 200, the shaft ends are regular hexagonal shafts, and the shaft ends are matched with the first group of mounting grooves and the second group of mounting grooves respectively; when the roller shaft 210 rotates, the roller 220 can rotate with the roller shaft 210 to achieve the change adjustment of the height of the roller body 200.

[0042] It is understood that the number of roller bodies 200 required for a turnout roller assembly varies depending on the location of its use. For example, when the turnout roller assembly is used at the tip of a switch rail, two roller bodies 200 are required, while when the turnout roller assembly is used at the rear end of a switch rail, only one roller body 200 is required.

[0043] The first type of roller device for a turnout provided in the present application is applied to the rear end of the point rail. Referring to Figure 3, in the present application, the first group of mounting grooves includes two first mounting grooves 300, and the second group of mounting grooves includes two second mounting grooves 400. Since the first group of mounting grooves and the second group of mounting grooves are both regular hexagonal grooves, the first mounting grooves 300 and the second mounting grooves 400 are also regular hexagonal grooves. In the present application, when designing the frame 100, the second frame 120 is located directly above the first frame 110, and there is a preset distance between the second frame 120 and the first frame 110, and the preset distance is greater than 0. The preset distance can be 2 mm, 3 mm or 4 mm, etc., and can be set according to actual conditions. The present application does not impose any restrictions on this.

[0044] Furthermore, since there is a preset distance between the first frame 110 and the second frame 120 , a support member is designed between the first frame 110 and the second frame 120 to make the structure of the frame 100 more stable.

[0045] It should be noted that in order to achieve surface contact between the bottom of the shaft end of the roller shaft 210 and the frame 100 to increase the force-bearing area of ​​the shaft end, the first group of mounting grooves includes two first mounting grooves 300, and the second group of mounting grooves includes two second mounting grooves 400. When the bottom of the first group of mounting grooves and the bottom of the second group of mounting grooves are designed in this application to be flat, that is, the bottom of the first mounting groove 300 and the bottom of the second mounting groove 400 are flat.

[0046] Since the roller shaft 210 of the roller body 200 in the present application is an eccentric structure, when the roller shaft 210 with the eccentric structure rotates, the roller 220 can rotate together with the roller shaft 210 with the eccentric structure, thereby achieving the change adjustment of the height of the roller body 200.

[0047] Furthermore, referring to Figures 5 and 6 , in order to better adjust the height of the roller body 200 at different levels, the present application considers both vertical and horizontal design considerations when designing the eccentric roller shaft 210 to ensure that the adjustment amount for each surface of the roller shaft 210 is maintained in an incremental relationship of 0.5 mm. As the roller 220 rotates around the eccentric roller shaft 210, the height of the roller 220 can be adjusted continuously in steps. For example, by setting the height of the slider bed top surface to 0, setting the horizontal eccentricity of the roller shaft 210 to 0.6 mm, and the vertical eccentricity of the roller shaft 210 to 2 mm, the eccentric roller shaft 210 is formed. This allows for six levels of height adjustment: -0.5, 0, 1, 2, 3, and 3.5, meeting the height adjustment requirements for the on-site installation of the turnout roller assembly. The "-0.5" value refers to downward adjustment relative to the slider bed top surface.

[0048] It should be noted that in the design of the roller device in the related art, the 0 position of the roller body of the roller device is generally set at the lowest point, and the rest is used for height adjustment. Moreover, the roller devices in the current related art only consider the height adjustment function, and ignore the manufacturing positive tolerance of the slide bed when assembled with the slide bed. Therefore, the design of this application has a downward adjustment function to eliminate the manufacturing tolerance of the assembly parts.

[0049] In the embodiment of the present application, the above-mentioned device is used. On the one hand, a first set of mounting slots and a second set of mounting slots are provided in the frame 100, and the first set of mounting slots and the second set of mounting slots are regular hexagonal slots. The roller body 200 is provided in the first set of mounting slots or the second set of mounting slots via the shaft ends at both ends. Since the roller shaft 210 has an eccentric structure, when the roller shaft 210 rotates, the roller 220 can rotate along with the roller shaft 210, thereby achieving the height adjustment of the roller body 200. On the other hand, since the bottoms of the first and second sets of mounting slots are flat, the bottoms of the shaft ends are in surface contact with the frame 100, and the force-bearing area of ​​the shaft ends of the roller shaft 210 is large, thereby improving the durability of the roller 220 device. In addition, a support member is provided between the first frame 110 and the second frame 120 to facilitate supporting the frame 100, making the structure of the frame 100 more stable.

[0050] Hereinafter, the respective parts of the above-mentioned turnout roller device in this exemplary embodiment will be described in more detail with reference to FIG. 1 to FIG. 6 .

[0051] In one embodiment, the support member includes a support frame 600 or a single roller 500 .

[0052] In one embodiment, when the support member includes a single roller 500 , the single roller 500 is disposed in the second group of mounting grooves or the first group of mounting grooves.

[0053] As can be understood, referring to Figure 2 , since the roller body 200 in this application is disposed within the first or second set of mounting grooves via its shaft end, when the support member is a single roller shaft 500, and when the roller body 200 in this application is disposed within the first set of mounting grooves via its shaft end, the single roller shaft 500 is disposed within the second set of mounting grooves; and when the roller body 200 in this application is disposed within the second set of mounting grooves via its shaft end, the single roller shaft 500 is disposed within the first set of mounting grooves. This arrangement provides support for the frame 100, making the structure of the frame 100 more stable.

[0054] In one embodiment, an anti-falling mechanism is provided on the single roller 500 to prevent the single roller 500 from falling off.

[0055] It is understandable that when the support member is a single roller 500, the single roller 500 may fall off in the following two situations: one is that the roller body 200 in the present application adjusts its height through the roller 210 with an eccentric structure. During the rotation of the roller 210 with an eccentric structure, the single roller 500 will also rotate, and the single roller 500 is prone to falling off during the rotation process. The other is that during the long-term operation of the train, the single roller 500 under the point rail will be vibrated, making the single roller 500 prone to falling off. Therefore, it is necessary to set an anti-slip mechanism on the single roller 500, which can, on the one hand, prevent the single roller 500 from falling off when the roller body 200 is raised, and on the other hand, prevent the single roller 500 from falling off when the single roller 500 vibrates. The anti-slip mechanism is implemented by machining or welding.

[0056] In one embodiment, when the support member includes a support frame 600 , the support frame 600 is disposed between the first frame 110 and the second frame 120 to support the frame 100 .

[0057] It can be understood that, referring to Figure 1, when the support member is a support frame 600, in order to make the structure of the frame 100 more stable, the present application sets the support frame 600 between the first frame 110 and the second frame 120 to improve the stability of the frame 100 structure.

[0058] It should be noted that the number of support frames 600 can be one or two. When there is one support frame 600, it is disposed between the frames 100 away from the roller body 200. When there are two support frames 600, they are disposed on the left and right sides between the frames 100. The specific setting can be determined according to actual conditions and is not limited in this application.

[0059] In one embodiment, it further includes:

[0060] Two ballast retaining plates 700 are respectively provided at two ends of the bottom of the first frame 110 .

[0061] It can be understood that, with reference to FIG1 and FIG3 , the provision of the ballast retaining plate 700 can effectively prevent obstruction by foreign objects such as ballast.

[0062] In one embodiment, a boss 800 is provided on the roller shaft 210 , and the boss 800 is located outside the corresponding shaft end.

[0063] In one embodiment, a stop shoulder 900 is provided on the boss 800 , and a seal 1100 is provided between the stop shoulder 900 and the roller 220 .

[0064] As will be appreciated, referring to Figures 1, 4, and 5, the stepped design of roller shaft 210 in this application effectively prevents roller 220 from becoming stuck. Furthermore, the seal 1100 further effectively prevents contamination or sticking of roller body 200. Seal 1100 can be a seal. For details, please refer to the prior art and will not be elaborated upon in this application.

[0065] In one embodiment, the first frame 110 and the second frame 120 are mounted via a fixing member 1000 .

[0066] It can be understood that, referring to Figure 1 , the provision of the fixing member 1000 makes the structure of the frame 100 more stable. The fixing member 1000 is a bolt.

[0067] It should be noted that, referring to FIG. 2 , a bearing 230 is further provided between the roller shaft 210 and the roller wheel 220 in the present application, and the bearing 230 is a self-lubricating bearing 230 , which requires no maintenance and has a long service life.

[0068] The roller device for the turnout in the present application can raise the point rail by adjusting the height of the roller body 200, thereby changing the sliding friction between the bottom of the point rail and the slide bed surface into rolling friction, which can effectively reduce the conversion resistance of the point rail, reduce the insufficient displacement of the point rail, and slow down the wear of the point rail and the slide bed.

[0069] In this example embodiment, a roller device for a turnout is also provided. Referring to Figures 7 and 8, it includes: a frame 100, a support member and two roller bodies 200. Among them, the frame 100 includes a first frame 110 and a second frame 120 located directly above the first frame 110, and the first frame 110 and the second frame 120 are spliced ​​to provide a first set of mounting grooves and a second set of mounting grooves; the first set of mounting grooves and the second set of mounting grooves are both regular hexagonal grooves, the bottoms of the first set of mounting grooves and the second set of mounting grooves are planes, and the groove centers of the first set of mounting grooves and the second set of mounting grooves are not collinear; the support member is provided between the first frame 110 and the second frame 120 brackets, and is used to support the frame 100; the two roller bodies 200 both include roller shafts with eccentric structures 210 and a roller 220 sleeved on the roller shaft 210; one of the roller bodies 200 is arranged in a first group of mounting grooves through the shaft ends at both ends, and the other roller body 200 is arranged in a second group of mounting grooves through the shaft ends at both ends; the shaft ends are regular hexagonal shafts, the shaft ends located in the first group of mounting grooves match the first group of mounting grooves, and the shaft ends located in the second group of mounting grooves match the second group of mounting grooves; when each roller shaft 210 of the eccentric structure rotates, the roller 220 can rotate together with the roller shaft 210 of the respective eccentric structure to realize the change adjustment of the height of each roller body 200.

[0070] It is understandable that, based on the different usage positions of the turnout roller device, the present application provides a second type of turnout roller device, which is suitable for use at the tip of the point rail, and the number of roller bodies 200 involved is 2. Since the production cost of the roller body 200 is relatively high, based on the different usage positions, a reasonable number of roller bodies 200 are provided to save costs. The frame 100 and the support member in this application have been described in the above embodiments, and are not described in detail in this application. In addition, compared with the first type of turnout roller device, the number of roller bodies 200 in this application is 2. The roller body 200 has been described in the above embodiments, and are not described in detail in this application.

[0071] It should be noted that the second type of turnout roller device provided in the present application may include a support frame 600 , which is disposed between the first frame 110 and the second frame 120 to improve the stability of the frame 100 structure.

[0072] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like in the above description indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of 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 embodiments of the present application.

[0073] 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 the 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 the embodiments of this application, the meaning of "plurality" is two or more, unless otherwise clearly specified.

[0074] In the embodiments of this application, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0075] In the embodiments of the present application, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0076] In the description of this specification, the reference terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0077] Those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of this application and include common knowledge or customary techniques in the art that are not disclosed in this application.

Claims

1. A turnout roller device, characterized in that: include: The frame comprises a first frame and a second frame located directly above the first frame, wherein the first frame and the second frame are assembled to form a first group of mounting slots and a second group of mounting slots; wherein the first group of mounting slots and the second group of mounting slots are both regular hexagonal slots, the bottoms of the first group of mounting slots and the second group of mounting slots are flat, and the centers of the first group of mounting slots and the second group of mounting slots are not collinear; a support member, disposed between the first frame and the second frame, for supporting the frames; A roller body, comprising an eccentric roller shaft and a roller sleeved on the roller shaft, wherein the roller body is arranged in the first group of mounting grooves or the second group of mounting grooves through shaft ends at both ends of the roller body, wherein the shaft ends are regular hexagonal shafts, and the shaft ends are matched with the first group of mounting grooves and the second group of mounting grooves respectively; When the roller shaft rotates, the roller can rotate together with the roller shaft to achieve the change adjustment of the roller body height.

2. The turnout roller device according to claim 1, characterized in that: The support member includes a support frame or a single roller.

3. The turnout roller device according to claim 2, characterized in that: When the support member includes a single roller, the single roller is disposed in the second group of mounting grooves or the first group of mounting grooves.

4. The turnout roller device according to claim 3, characterized in that: An anti-slip mechanism is provided on the single roller shaft to prevent the single roller shaft from falling off.

5. The turnout roller device according to claim 2, characterized in that: When the support member includes a support frame, the support frame is disposed between the first frame and the second frame to support the frames.

6. The turnout roller device according to claim 1, characterized in that: Also includes: Two ballast retaining plates are respectively arranged at two ends of the bottom of the first frame.

7. The turnout roller device according to claim 1, characterized in that: A boss is provided on the roller shaft, and the boss is located outside the corresponding shaft end.

8. The turnout roller device according to claim 7, characterized in that: A shoulder is provided on the boss, and a sealing member is provided between the shoulder and the roller.

9. The turnout roller device according to claim 1, characterized in that: The first frame and the second frame are mounted via fixing members.

10. A turnout roller device, characterized in that: include: A frame comprising a first frame and a second frame located directly above the first frame, wherein the first frame and the second frame are assembled to form a first set of mounting slots and a second set of mounting slots; wherein the first set of mounting slots and the second set of mounting slots are both regular hexagonal slots, the bottoms of the first set of mounting slots and the second set of mounting slots are flat, and the centers of the first set of mounting slots and the second set of mounting slots are not collinear; a support member, disposed between the first frame and the second frame bracket, for supporting the frame; Two roller bodies, each comprising an eccentric roller shaft and a roller sleeved on the roller shaft; one of the roller bodies is disposed in the first set of mounting grooves via its shaft ends at both ends, and the other roller body is disposed in the second set of mounting grooves via its shaft ends at both ends; wherein the shaft ends are regular hexagonal shafts, the shaft end located in the first set of mounting grooves matches the first set of mounting grooves, and the shaft end located in the second set of mounting grooves matches the second set of mounting grooves; When each roller shaft of the eccentric structure rotates, the roller can rotate together with the roller shaft of the respective eccentric structure to achieve variable adjustment of the height of each roller body.

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