A cross step beam type ground roller structure and a cross step beam type ground roller device

Abstract

The application discloses a kind of across step girder ground roller structure and across step girder ground roller device, across step girder ground roller structure includes mounting seat, driving part and two groups of support components. Mounting seat is sequentially provided with first cavity, second cavity and first connecting hole along the first direction. Two groups of support components are spaced apart in the first cavity along the second direction perpendicular to the first direction, each group of support components includes carrier roller and two support rollers, carrier roller is located in the first cavity, and carrier roller is rotatably connected to mounting seat along the first direction, two support rollers are spaced apart in the first cavity along the second direction, and two support rollers are supported below carrier roller. Driving part is installed in the second cavity, and driving part is at least drivingly connected to one carrier roller by first connecting hole. The two groups of support components of the across step girder ground roller structure disclosed in the application are spaced apart along the second direction (material axis direction), so that the support direction of carrier roller is consistent with the material axis.

Description

Technical Field

[0001] This application belongs to the field of floor roller structure technology, specifically relating to a cross-stepping beam type floor roller structure and a cross-stepping beam type floor roller device. Background Technology

[0002] In the material conveying system of the cold rolling zone, the coordinated operation of the walking beam and the ground rollers is a core component. Traditionally, the ground rollers are generally arranged in parallel, with their support direction aligned with the walking beam's direction of movement. However, when the steel coil is placed laterally on the walking beam (i.e., the coil's axis is perpendicular to the walking beam's direction of movement), the parallel-arranged ground rollers, due to the conflict between their support direction and the coil's axis, prevent the coil from stably contacting the roller surface. This leads to slippage, misalignment, and even jamming, severely impacting conveying efficiency and safety. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this application discloses a cross-stepping beam type floor roller structure and a cross-stepping beam type floor roller device.

[0004] The technical solution adopted to achieve the purpose of this application is as follows: In the first aspect of this application, the present invention discloses a transverse stepping beam type ground roller structure, comprising: The mounting base is provided with a first cavity, a second cavity and a first connecting hole. The first cavity and the second cavity are spaced apart along a first direction and are connected through the first connecting hole. Two sets of support assemblies are spaced apart within the first cavity along a second direction perpendicular to the first direction. Each set of support assemblies includes a roller and two support rollers. The roller is located within the first cavity and is rotatably connected to the mounting base along the first direction. The two support rollers are spaced apart within the first cavity along the second direction, and both support rollers are supported below the roller. A drive unit is installed in the second cavity and is connected to at least one of the idler rollers via the first connection hole.

[0005] According to one embodiment of the present invention, the mounting base is provided with a first mounting groove and a second mounting groove. The first mounting groove is located in the first cavity and is located on the side of the first cavity close to the second cavity. The first mounting groove is located at the first connecting hole. The second mounting groove is located in the second cavity and is located on the side of the second cavity away from the first cavity. The transverse stepping beam type roller structure further includes a first bearing seat and a second bearing seat. The first bearing seat is installed in the first mounting groove, and the second bearing seat is installed in the second mounting groove. The fixed bearings at both ends of the roller are respectively installed in the first bearing seat and the second bearing seat.

[0006] According to one embodiment of the present invention, the mounting base is further provided with a limiting groove and a second connecting hole. The limiting groove is located in the first cavity and is located on the side of the first cavity closer to the second cavity. The two ends of the second connecting hole are respectively connected to the limiting groove and the second cavity. The support roller is provided with a limiting block, which is engaged in the limiting groove.

[0007] According to one embodiment of the present invention, the first bearing housing is provided with a protrusion, the protrusion being engaged in the first mounting groove, and the first bearing housing at least covers a portion of the limiting groove.

[0008] According to one embodiment of the present invention, the mounting base is provided with a threaded hole in the first cavity, and the first bearing seat is provided with a strip-shaped hole along a third direction, the third direction being perpendicular to the first direction and perpendicular to the second direction. The first mounting base is connected to the mounting base by a bolt, the bolt passing through the strip-shaped hole and connecting to the threaded hole.

[0009] According to one embodiment of the present invention, the support roller includes a support shaft, a support bearing, and a support shell. The support shaft is rotatably connected to the mounting base, the support shell is sleeved outside the support shaft and supported below the idler roller, and the support bearing is installed between the support shaft and the support shell.

[0010] According to one embodiment of the present invention, a first slot is provided on the support shaft, and a second slot is provided on the support shell at a position corresponding to the first slot, and the support bearing is installed in the first slot and the second slot.

[0011] According to one embodiment of the present invention, the surface of the idler roller is covered with an elastic cushioning layer.

[0012] According to one embodiment of the present invention, it further includes a first partition plate, which is installed in the first cavity and divides the first cavity into two mounting cavities, the two mounting cavities being arranged in a one-to-one correspondence with the two idler rollers; and two driving members are provided, the two driving members being arranged in a one-to-one correspondence with the two idler rollers.

[0013] The technical solution adopted to achieve the purpose of this application is as follows: In a second aspect of this application, the present invention also discloses a transverse stepping beam type floor roller device, which includes a stepping beam and a plurality of transverse stepping beam type floor roller structures described in the first aspect above. The plurality of transverse stepping beam type floor roller structures are symmetrically arranged on both sides of the stepping beam, and the first cavity of the mounting base is located between the stepping beam and the second cavity.

[0014] As can be seen from the above technical solution, the transverse stepping beam type floor roller structure disclosed in this application includes a mounting base, a driving component, and two sets of support assemblies. The mounting base is provided with a first cavity, a second cavity, and a first connecting hole. The first cavity and the second cavity are spaced apart along a first direction and communicate with each other through the first connecting hole. The two sets of support assemblies are spaced apart within the first cavity along a second direction perpendicular to the first direction. Each set of support assemblies includes a roller and two support rollers. The roller is located within the first cavity and is rotatably connected to the mounting base along the first direction. The two support rollers are spaced apart within the first cavity along the second direction and are both supported below the roller. The driving component is installed within the second cavity and is drively connected to at least one of the rollers through the first connecting hole.

[0015] The two sets of support components of the transverse stepping beam type roller structure disclosed in this application are arranged at intervals along a second direction (the direction of the material axis), so that the support direction of the roller is consistent with the material axis. The horizontally placed material can directly contact the surface of the roller, forming a stable surface contact and avoiding conveying failures caused by conflict in the support direction. Attached Figure Description

[0016] To enable those skilled in the art to more clearly understand this application, the technical solutions in 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 the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0017] Figure 1This is a schematic diagram of a cross-beam type roller structure in one or more embodiments of this application; Figure 2 for Figure 1 A top view of the cross-span step beam type ground roller structure; Figure 3 for Figure 1 Cross-sectional schematic diagram of the mid-span walking beam type floor roller structure; Figure 4 for Figure 1 A schematic diagram of the mounting bracket; Figure 5 for Figure 1 Schematic diagram of the middle support roller; Figure 6 for Figure 5 Cross-sectional view of the mounting base; Figure 7 for Figure 1 Connection diagram of the middle cover and the mounting base: Figure 8 This is a schematic diagram of a cross-beam type floor roller device in one or more embodiments of this application.

[0018] Explanation of reference numerals in the attached drawings: 1000, transverse stepping beam type roller structure; 2000, steel coil; 3000, stepping beam; 4000, foundation; 100, mounting base; 110, first cavity; 120, second cavity; 130, first connecting hole; 140, first mounting groove; 150, second mounting groove; 160, second connecting hole; 170, limiting groove; 200, support assembly; 210, idler roller; 220, support roller; 221, support shaft; 222, support shell; 223, support bearing; 224, limiting block; 300, driving component; 400, first partition; 500, second partition; 600, cover. Detailed Implementation

[0019] To enable those skilled in the art to more clearly understand this application, the technical solutions in 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 the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0020] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0022] This invention discloses a transverse stepping beam type ground roller structure and transverse stepping beam type ground roller device, which can solve the technical problem that the steel coil cannot stably contact the ground roller surface when the existing ground roller is placed transversely on the stepping beam.

[0023] The technical solutions of this application will be described in detail below through specific embodiments and in conjunction with the accompanying drawings, which are not necessarily drawn to scale. Similar or identical reference numerals may be used to designate the same or similar parts in different figures. The use of similar or identical reference numerals in different figures does not mean that all figures including similar or identical reference numerals constitute a single or the same embodiment. The accompanying drawings illustrate the various embodiments discussed in this application in a generalized manner, by way of example and not limitation.

[0024] See Figure 1 , Figure 2 , Figure 3 and Figure 4 In a first aspect embodiment of this application, a transverse step-beam type floor roller structure 1000 is disclosed, which includes a mounting base 100, a driving component 300, and two sets of support assemblies 200. The mounting base 100 is provided with a first cavity 110, a second cavity 120, and a first connecting hole 130. The first cavity 110 and the second cavity 120 are spaced apart along a first direction and are connected through the first connecting hole 130. The two sets of support assemblies 200 are spaced apart in the first cavity 110 along a second direction perpendicular to the first direction. Each set of support assemblies 200 includes a roller 210 and two support rollers 220. The roller 210 is located in the first cavity 110 and is rotatably connected to the mounting base 100 along the first direction. The two support rollers 220 are spaced apart in the first cavity 110 along the second direction and are both supported below the roller 210. The drive unit 300 is installed in the second cavity 120, and the drive unit 300 is connected to at least one idler roller 210 through the first connection hole 130.

[0025] In this embodiment, the two sets of support components 200 of the transverse stepping beam type roller structure 1000 are spaced apart along the second direction (material axis direction), so that the support direction of the idler roller 210 is consistent with the material axis. The horizontally placed material can directly contact the surface of the idler roller 210, forming a stable surface contact and avoiding conveying failures caused by conflict in the support direction.

[0026] In one embodiment, the mounting base 100 is provided with a first mounting groove 140 and a second mounting groove 150. The first mounting groove 140 is located within the first cavity 110 and is situated on the side of the first cavity 110 closest to the second cavity 120, and is located at the first connecting hole 130. The second mounting groove 150 is located within the second cavity 120 and is situated on the side of the second cavity 120 opposite to the first cavity 110. The transverse stepping beam type roller structure 1000 also includes a first bearing seat and a second bearing seat. The first bearing seat is installed within the first mounting groove 140, and the second bearing seat is installed within the second mounting groove 150. The fixed bearings at both ends of the idler roller 210 are respectively installed within the first bearing seat and the second bearing seat.

[0027] As the core component of the floor roller, the installation accuracy of the idler roller 210 directly affects the smoothness of the conveying process. Traditional floor rollers typically fix the idler roller 210 directly to the mounting base 100 with bolts. This is prone to axis misalignment due to machining errors or loose assembly, causing vibration or deviation during material conveying. The first and second bearing seats are respectively embedded in the first and second mounting grooves 150. The fit between the grooves and the bearing seats restricts the radial and axial displacement of the idler roller 210, ensuring that the axis of the idler roller 210 is strictly perpendicular to the reference plane of the mounting base 100. Fixed bearings are installed within the bearing seats, further eliminating the gap between the idler roller 210 and the mounting base 100, preventing axial movement during high-speed rotation, and improving conveying stability.

[0028] In a traditional 3000-type walking beam roller structure, the idler roller 210 is directly fixed to the mounting base 100 or frame by screws. When the idler roller 210 is driven to rotate by a hydraulic motor, it generates axial and radial torques, which are transmitted to the mounting base 100 through the screws. The first mounting groove 140 and the first bearing housing are interference-fitted or keyed, and can withstand most of the rotational torque; the screws are only used to fix the relative position of the first bearing housing and the first mounting groove 140, and do not directly bear the torque.

[0029] In one embodiment, the mounting base 100 is further provided with a limiting groove 170 and a second connecting hole 160. The limiting groove 170 is located within the first cavity 110 and is situated on the side of the first cavity 110 closest to the second cavity 120. The two ends of the second connecting hole 160 communicate with the limiting groove 170 and the second cavity 120, respectively. The support roller 220 is provided with a limiting block 224, which engages within the limiting groove 170.

[0030] As the lower support component of the idler roller 210, the support roller 220 must withstand the weight of the material and the dynamic load during the rotation of the idler roller 210. Traditional floor rollers typically fix the support roller 220 only by gravity or simple clips, which can easily lead to axial displacement, radial runout, or even detachment under heavy loads or high-speed rotation, causing the idler roller 210 to fail, resulting in unstable material conveying or equipment damage. The cooperation between the limiting groove 170 and the limiting block 224 ensures a more stable connection between the support roller 220 and the mounting base 100.

[0031] In one embodiment, a protrusion is provided on the first bearing housing, the protrusion engages within the first mounting groove 140, and the first bearing housing at least covers a portion of the limiting groove 170.

[0032] On the one hand, the fixed bearing on the idler roller 210 can be installed through the first bearing housing. On the other hand, the first bearing housing can also restrict the limiting block 224. After the first bearing housing is connected to the mounting base 100, the first bearing housing can restrict the limiting block 224 within the limiting groove 170, thereby ensuring the stable operation of the support roller 220.

[0033] In one embodiment, the mounting base 100 has a threaded hole in the first cavity 110, and the height of the first mounting groove 140 is greater than the height of the first bearing seat, so that the first bearing seat can slide back and forth in the first mounting groove 140 along a third direction, allowing the gap between the idler roller 210 and the support roller to be slightly adjusted. The first bearing seat has a strip-shaped hole along a third direction, which is perpendicular to the first direction and also perpendicular to the second direction. The first mounting base 100 is connected to the mounting base 100 by bolts, which pass through the strip-shaped hole and connect to the threaded hole.

[0034] See Figure 3 , Figure 5 and Figure 6 In one embodiment, the support roller 220 includes a support shaft 221, a support bearing 223, and a support housing 222. The support shaft 221 is rotatably connected to the mounting base 100, the support housing 222 is sleeved on the support shaft 221 and supported below the idler roller 210, and the support bearing 223 is installed between the support shaft 221 and the support housing 222.

[0035] By placing the support bearing 223 inside the support roller 220, the contact area between the support housing 222 and the idler roller 210 can be increased, thereby making the idler roller 210 more stable. The support bearing 223 inside the support roller 220 is mainly used to bear radial force, while the fixed bearing on the idler roller 210 is the opposite. The fixed bearing on the idler roller 210 is only used to constrain the axial movement of the idler roller 210 and does not bear radial pressure.

[0036] The limiting block 224 may be disposed on the support shaft 221. In some embodiments, the limiting block 224 and the mounting base 100 may be connected by bolts or screws, so that the support shaft 221 and the mounting base 100 are fixedly connected.

[0037] The support roller 220 structure design achieves stable rotation, precise positioning and reliable load bearing by modularly combining the support shaft 221, support bearing 223 and support shell 222, and by introducing a limiting block 224 to constrain the support shaft 221.

[0038] In one embodiment, a first slot is provided on the support shaft 221, and a second slot is provided on the support shell 222 at a position corresponding to the first slot. The support bearing 223 is installed in the first slot and the second slot.

[0039] The support roller 220 structure achieves precise bearing positioning, axial constraint, and structural simplification by setting a first slot and a second slot on the support shaft 221 and support shell 222 respectively, and directly embedding the support bearing 223 into the slots. The shape and size of the first slot (support shaft 221) and the second slot (support shell 222) match the height of the bearing's outer / inner ring (e.g., arc-shaped, rectangular, or trapezoidal slots), directly limiting the radial and axial displacement of the bearing through physical engagement. In traditional support structures, bearings are usually fixed by interference fit or end cap clamping, but this can lead to bearing misalignment due to machining errors or assembly loosening. The slot design, through geometric positioning (e.g., controlling the slot width and bearing thickness tolerances), significantly reduces rotational eccentricity.

[0040] In one embodiment, the surface of the idler roller 210 is covered with an elastic buffer layer. Covering the surface of the idler roller 210 with an elastic buffer layer can significantly improve the performance of the idler roller 210 during the conveying process through its material properties and structural functions, especially in terms of vibration reduction and noise reduction, material protection, extended service life, and adaptability to complex working conditions. The elastic buffer layer (such as rubber, polyurethane, or silicone) has high elastic modulus and damping characteristics. When the idler roller 210 is subjected to material impact (such as steel coil 2000 falling, ore falling) or conveyor belt tension fluctuations, the buffer layer can absorb the impact energy through elastic deformation, reducing the vibration transmission to the idler roller 210 shaft, bearings, and support structure.

[0041] See Figure 1 and Figure 4 In one embodiment, the transverse stepping beam type roller structure 1000 further includes a first partition 400, which is installed in the first cavity 110 and divides the first cavity 110 into two mounting cavities, which are respectively arranged in a one-to-one correspondence with the two idler rollers 210; two drive members 300 are provided, which are respectively arranged in a one-to-one correspondence with the two idler rollers 210.

[0042] The independent design of the mounting cavity avoids interference between different idler roller 210 components (such as pipeline entanglement and vibration transmission), thus improving operational stability.

[0043] Of course, setting two drive units 300 is only one implementation method in this embodiment. In other implementation methods, it is also possible to set only one drive unit 300 so that one idler roller 210 is driven while the other idler roller 210 is passively rotated. Alternatively, it is also possible for the drive unit 300 to drive both idler rollers 210 simultaneously through a transmission structure such as a gear set.

[0044] In one embodiment, the cross-beam type roller structure 1000 further includes a second partition 500, which is installed in the second cavity 120 and divides the second cavity 120 into two mounting cavities, which are respectively arranged in a one-to-one correspondence with the two idler rollers 210.

[0045] See Figure 1 and Figure 7 In one embodiment, the cross-beam type roller structure 1000 further includes a cover 600, which covers the first cavity 110 of the mounting base 100 and seals the first cavity 110.

[0046] Through the above embodiments, this application has the following beneficial effects or advantages: The support component 200 of the transverse stepping beam type ground roller structure 1000 disclosed in this application is arranged along the axial direction of the steel coil 2000, so that the support direction of the idler roller 210 is consistent with the axial direction of the steel coil 2000, solving the problem that traditional parallel ground rollers cannot stably support the transverse steel coil 2000, and improving the reliability of conveying. The double support roller 220 structure forms symmetrical support points, distributing the load of the idler roller 210 and avoiding deformation or displacement caused by single-point support; the limiting groove 170 and the limiting block 224 cooperate to prevent the support roller 220 from shifting, ensuring the structural stability under long-term heavy load. The surface of the idler roller 210 is wrapped with an elastic buffer layer, which absorbs the impact force during the conveying process of the steel coil 2000, reduces the wear of the idler roller 210 and the steel coil 2000, and extends the service life of the equipment.

[0047] See Figure 8 Based on the same inventive concept, a second aspect of this application discloses a transverse step-beam type floor roller device, which includes a step-beam 3000 and a plurality of transverse step-beam type floor roller structures 1000 disclosed in any of the first aspects above. Both the step-beam 3000 and the transverse step-beam type floor roller structures 1000 are installed within a foundation 4000. The plurality of transverse step-beam type floor roller structures 1000 are symmetrically arranged on both sides of the step-beam 3000, and the first cavity 110 of the mounting base 100 is located between the step-beam 3000 and the second cavity 120.

[0048] The two sets of support components 200 of the transverse stepping beam type floor roller device disclosed in this application are spaced apart along a second direction (the direction of the material axis), so that the support direction of the idler roller 210 is consistent with the material axis. Taking into full account the influence of factors such as the lifting height of the stepping beam 3000, the width of the steel coil 2000, and the outer diameter of the steel coil 2000, the width of the bearing seat on the side of the idler roller 210 on the steel coil 2000 is reduced, and a reasonable layout of the floor roller is achieved in a limited space, so that the designed floor roller size is smaller and meets the actual production needs.

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention have been clearly and completely described above with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0050] Therefore, the above detailed description of the embodiments of the invention disclosed in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0051] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0052] In the description of this invention, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0053] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] In this invention, unless otherwise expressly specified and limited, "above or below" a first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0056] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A transverse stepping beam type floor roller structure, characterized in that, include: The mounting base is provided with a first cavity, a second cavity and a first connecting hole. The first cavity and the second cavity are spaced apart along a first direction and are connected through the first connecting hole. Two sets of support components are spaced apart in the first cavity along a second direction perpendicular to the first direction. Each set of support components includes a roller and two support rollers. The roller is located in the first cavity and is rotatably connected to the mounting base along the first direction. The two support rollers are spaced apart in the first cavity along the second direction and are both supported below the roller. as well as A drive unit is installed in the second cavity and is connected to at least one of the idler rollers via the first connection hole.

2. The transverse stepping beam type ground roller structure according to claim 1, characterized in that, The mounting base is provided with a first mounting slot and a second mounting slot. The first mounting slot is located in the first cavity and is located on the side of the first cavity close to the second cavity. The first mounting slot is located at the first connecting hole. The second mounting slot is located in the second cavity and is located on the side of the second cavity away from the first cavity. The cross-beam type roller structure also includes a first bearing seat and a second bearing seat. The first bearing seat is installed in the first mounting groove, and the second bearing seat is installed in the second mounting groove. The fixed bearings at both ends of the roller are respectively installed in the first bearing seat and the second bearing seat.

3. The transverse stepping beam type ground roller structure according to claim 2, characterized in that, The mounting base is also provided with a limiting groove and a second connecting hole. The limiting groove is located in the first cavity and is located on the side of the first cavity closer to the second cavity. The two ends of the second connecting hole are respectively connected to the limiting groove and the second cavity. The support roller is provided with a limiting block, which is engaged in the limiting groove.

4. The transverse stepping beam type ground roller structure according to claim 3, characterized in that, The first bearing housing has a protrusion that engages with the first mounting groove, and the first bearing housing at least covers a portion of the limiting groove.

5. The transverse stepping beam type ground roller structure according to claim 2, characterized in that, The mounting base has a threaded hole in the first cavity, and the first bearing seat has a strip-shaped hole along a third direction, which is perpendicular to the first direction and perpendicular to the second direction. The first mounting base is connected to the mounting base by a bolt, which passes through the strip-shaped hole and connects to the threaded hole.

6. The transverse stepping beam type ground roller structure according to claim 1, characterized in that, The support roller includes a support shaft, a support bearing, and a support shell. The support shaft is rotatably connected to the mounting base. The support shell is sleeved on the support shaft and supports the roller below. The support bearing is installed between the support shaft and the support shell.

7. The transverse stepping beam type ground roller structure according to claim 6, characterized in that, The support shaft is provided with a first slot, and the support shell is provided with a second slot at a position corresponding to the first slot. The support bearing is installed in the first slot and the second slot.

8. The transverse stepping beam type floor roller structure according to any one of claims 1 to 7, characterized in that, The surface of the idler roller is covered with an elastic cushioning layer.

9. The transverse stepping beam type floor roller structure according to any one of claims 1 to 7, characterized in that, It also includes a first partition plate, which is installed in the first cavity and divides the first cavity into two mounting cavities. The two mounting cavities are arranged in a one-to-one correspondence with the two idlers. The driving component is configured in two parts, and the two driving components are configured one-to-one with the two idler rollers.

10. A transverse stepping beam type floor roller device, characterized in that, The device includes a stepping beam and several cross-stepping beam type roller structures as described in any one of claims 1 to 9, wherein several cross-stepping beam type roller structures are symmetrically arranged on both sides of the stepping beam, and the first cavity of the mounting base is located between the stepping beam and the second cavity.

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