Crossbeam structure of road roller and road roller

Abstract

The utility model provides a cross beam structure of a road roller and the road roller, and belongs to the technical field of road roller parts, the cross beam structure of the road roller comprises a cross beam body and a hinge seat, the hinge seat comprises a mounting platform and at least one mounting plate arranged on the mounting platform, the mounting platform is used for connecting a hinge frame of a rear frame of the road roller, and the mounting plate is arranged on the mounting platform. The mounting plate is inserted into the cross beam body, the mounting plate extends to a second side face of the cross beam body through a first side face of the cross beam body, and the first side face and the second side face are oppositely arranged; wherein the installation platform abuts against and is connected with the first side face, and the installation plate is connected with the second side face. According to the cross beam structure of the road roller disclosed by the embodiment of the invention, the connecting structure strength and the torsional strength of the cross beam body and the hinge seat are enhanced.

Description

Technical Field

[0001] This application relates to the technology of road roller components, and more particularly to a crossbeam structure of a road roller and the road roller itself. Background Technology

[0002] Currently, the main frame of a road roller includes a front frame, a rear frame, and an articulated frame. The front frame consists of a front crossbeam and a rear crossbeam that are connected to each other. The rear crossbeam on the front frame is connected to the rear frame via the articulated frame.

[0003] In related technologies, the rear crossbeam is connected to the articulated frame via a hinged seat welded to the rear crossbeam. However, due to factors such as the vibration impact of the roller's vibratory wheel and the enormous shear force during sharp turns, the connection between the rear crossbeam and the articulated seat is prone to fatigue cracking of the weld due to stress concentration, affecting the normal operation of the roller. Utility Model Content

[0004] This application provides a crossbeam structure for a road roller and a road roller in order to solve the technical problem of poor strength of the connection structure between the rear crossbeam and the hinge seat of the road roller in the related art.

[0005] On the one hand, this application provides a crossbeam structure for a road roller, comprising:

[0006] The beam itself;

[0007] The articulated mount includes a mounting platform and at least one mounting plate disposed on the mounting platform. The mounting platform is used to connect the articulated frame of the rear frame of the road roller. The mounting plate is inserted into the crossbeam body and extends from a first side of the crossbeam body to a second side of the crossbeam body. The first side and the second side are disposed opposite to each other.

[0008] The mounting platform abuts against and is connected to the first side, and the mounting plate is connected to the second side.

[0009] In some possible implementations, the beam body has a receiving cavity, and the beam body is provided with a mounting groove that extends through the receiving cavity, the first side side, and the second side side, and the mounting plate is inserted into the mounting groove.

[0010] In some possible implementations, one end of the mounting plate inserted into the mounting slot is flush with the second side.

[0011] In some possible implementations, the mounting plate is welded to the second side; and / or, the mounting platform is welded to the first side.

[0012] In some possible implementations, the plane containing the mounting plate is perpendicular to the axis of the beam body.

[0013] In some possible implementations, the mounting platform has a through hole, the mounting plate is disposed on the mounting platform through the through hole, and the mounting plate is welded to the mounting platform.

[0014] In some possible implementations, two mounting plates are spaced apart on the mounting platform, and both mounting plates are inserted into the crossbeam body.

[0015] In some possible implementations, a support bearing housing is also included, with its two ends respectively connected to the two mounting plates, and the support bearing housing is used to accommodate the joint bearing of the hinge frame.

[0016] In some possible implementations, the mounting platform is provided with mounting holes for mounting the spherical bearing, the mounting holes being coaxially arranged with the support bearing housing.

[0017] On the other hand, embodiments of this application also provide a road roller, including a front frame, a rear frame, and an articulated frame connecting the front frame and the rear frame, wherein the front frame includes the crossbeam structure of the road roller as described in any of the preceding claims.

[0018] The crossbeam structure and the roller provided in this application utilize a mounting plate inserted into the crossbeam body. The mounting plate extends from a first side to a second side of the crossbeam body, with the first and second sides facing each other. The mounting platform abuts against and connects to the first side, and the mounting plate connects to the second side. This allows the load on the hinged seat to be guided into the interior of the crossbeam body. The mounting plate and the crossbeam body jointly bear the vibration impact of the vibrating wheel, the driving force of the hinged frame, and the steering torque. This transforms the traditional planar welded connection between the hinged seat and the crossbeam body into a three-dimensional box-shaped crossbeam that shares the load. This avoids stress concentration at the connection point between the hinged seat and the crossbeam body, improves the fatigue resistance of the welds between the hinged seat and the rear crossbeam, and enhances the overall connection strength and torsional resistance of the rear crossbeam of the roller. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0020] Figure 1 This is a schematic diagram of the overall structure of the crossbeam of the road roller in the embodiments of this application;

[0021] Figure 2 for Figure 1 A structural diagram from another perspective;

[0022] Figure 3 This is a schematic diagram of the hinge seat in an embodiment of this application.

[0023] Explanation of reference numerals in the attached figures

[0024] 100. Crossbeam body; 101. First side; 102. Second side; 103. Mounting groove;

[0025] 200. Hinge seat; 201. Mounting platform; 2011. Assembly hole; 2012. Third welding bevel;

[0026] 202. Mounting plate; 2021. First welding bevel;

[0027] 203. Support bearing housing; 2031. Fastener; 204. Reinforcing plate.

[0028] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or 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 application according to the specific circumstances.

[0031] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in a sequence other than those illustrated or described herein.

[0033] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0034] As described in the background section, the rear crossbeam of a road roller is typically connected to the articulated frame on the rear frame via a hinged seat welded to it. The hinged seat and the rear crossbeam are directly butt-welded, and the entire surface of the hinged seat's ear plate is welded to the outer wall of the crossbeam. The load can only be diffused to the surface of the crossbeam through the weld, forming a planar stress field. The root of the hinged seat is prone to stress concentration areas. The vibration impact of the vibrating wheel and the shear force during sharp turns are entirely borne by the weld, which makes the weld connection between the rear crossbeam and the hinged seat prone to cracking, making maintenance difficult and affecting the normal construction process.

[0035] Based on the above description, one or more embodiments of this application provide a crossbeam structure for a road roller and a road roller in general. In the crossbeam structure, a mounting plate is inserted into the crossbeam body, and the mounting plate extends from a first side of the crossbeam body to a second side of the crossbeam body. The first and second sides are arranged opposite to each other. The mounting platform abuts against and connects to the first side, and the mounting plate connects to the second side. Thus, the load borne by the hinge seat on the hinge frame is guided into the interior of the crossbeam body. The mounting plate and the crossbeam body jointly bear the vibration impact of the vibrating wheel, the driving force of the hinge frame, and the steering torque. This transforms the traditional planar welded connection between the hinge seat and the crossbeam body into a three-dimensional box-shaped crossbeam that shares the load, avoiding stress concentration at the connection point between the hinge seat and the crossbeam body. This improves the fatigue resistance of the welds between the hinge seat and the rear crossbeam, and enhances the overall connection strength and torsional resistance of the road roller's rear crossbeam. The following description, in conjunction with the accompanying drawings, illustrates the embodiments of this application.

[0036] like Figure 1 and Figure 2 As shown, the roller crossbeam structure of this application embodiment includes a crossbeam body 100 and a hinge seat 200. The hinge seat 200 includes a mounting platform 201 and at least one mounting plate 202 disposed on the mounting platform 201. The mounting platform 201 is used to connect the hinge frame of the roller's rear frame. The mounting plate 202 is inserted into the crossbeam body 100 and extends from a first side 101 of the crossbeam body 100 to a second side 102 of the crossbeam body 100. The first side 101 and the second side 102 are disposed opposite to each other. The mounting platform 201 abuts against and is connected to the first side 101, and the mounting plate 202 is connected to the second side 102.

[0037] As can be seen from the above description, since the mounting plate 202 is inserted into the crossbeam body 100, the hinge seat 200 and the crossbeam body 100 form an insertion connection. This extends the connection depth between the hinge seat 200 and the crossbeam body 100, transforming the original two-dimensional load on the hinge seat 200 and the crossbeam body 100 into a three-dimensional box-shaped cross section of the crossbeam body 100 that shares the load. This effectively enhances the shear resistance and vibration impact resistance of the hinge seat 200, avoids fatigue cracking at the connection point between the hinge seat 200 and the crossbeam body 100, and helps extend the service life of the crossbeam structure.

[0038] In this embodiment, the road roller is an articulated single-drum vibratory road roller or a walk-behind double-drum vibratory road roller. In addition to the beam structure mentioned in this embodiment, the road roller should also be equipped with other related components for realizing the operation function. These components can adopt road roller equipment components in related technologies, which will not be described in detail in this embodiment.

[0039] like Figure 1 and Figure 2 As shown, in some embodiments, the beam body 100 has a receiving cavity, and the beam body 100 is provided with a mounting groove 103 that passes through the receiving cavity, the first side 101 and the second side 102, and the mounting plate 202 is inserted into the mounting groove 103.

[0040] The aforementioned crossbeam body 100 is the rear crossbeam of the road roller. The crossbeam body 100 is part of the front frame of the road roller and is used to connect to the rear frame of the road roller via the hinge seat 200. For example, the crossbeam body 100 is a closed rectangular cross-section beam formed by welding upper and lower cover plates and left and right web plates. The internal receiving cavity is an integral cavity or a partitioned cavity with simple stiffening plate support.

[0041] The receiving cavity provided in the crossbeam body 100 can be filled with filler material, such as cast iron granules or concrete. By filling the receiving cavity of the crossbeam body 100 with filler material, the counterweight of the crossbeam body 100 can be enhanced, thereby improving the compaction capacity of the road roller. On the other hand, when the mounting plate 202 is inserted into the crossbeam body 100, the counterweighted crossbeam body 100 can further enhance the shear resistance of the hinge seat 200, thereby enhancing the overall connection stability between the hinge seat 200 and the crossbeam body 100.

[0042] like Figure 3 As shown in the embodiment of this application, the mounting platform 201 has a through hole, and the mounting plate 202 is disposed on the mounting platform 201 through the through hole. The mounting plate 202 is welded to the mounting platform 201.

[0043] Specifically, two mounting plates 202 are spaced apart on the mounting platform 201. Both mounting plates 202 are inserted into the crossbeam body 100. The mounting platform 201 has two through holes, and a mounting plate 202 is inserted through each through hole. Two mounting slots 103 are spaced apart in the middle of the crossbeam body 100, and the mounting plates 202 are inserted into the mounting slots 103 accordingly.

[0044] In the above embodiment, the mounting platform 201 is a metal plate platform. The mounting plate 202 passing through the mounting platform 201 is welded and fixed to the mounting platform 201 to form an integral part. Each mounting plate 202 is respectively connected to a mounting groove 103 on the crossbeam body 100.

[0045] Here, as Figure 3 As shown, the two mounting plates 202 are arranged in parallel and symmetrically relative to the mounting platform 201. The two mounting plates 202 decompose the concentrated load of the traditional single-point bearing into two independent load-bearing points. Even if the weld between one mounting plate 202 and the mounting platform 201, or between the mounting plate 202 and the crossbeam body 100 fails due to fatigue, the other mounting plate 202 can still bear a certain load. This realizes the redundant design of the connection between the hinge seat 200 and the crossbeam body 100, and further improves the overall torsional strength of the hinge seat 200.

[0046] As an alternative implementation, four mounting plates 202 are installed inside the mounting platform 201. All four mounting plates 202 are installed in the mounting grooves 103 of the crossbeam body 100. Of course, as the number of mounting plates 202 increases, the installation process and difficulty also become more complex.

[0047] Furthermore, a reinforcing plate 204 is provided between the mounting platform 201 and the mounting plate 202. This reinforcing plate 204 is a triangular metal plate, with one side welded to the mounting platform 201 and the adjacent side welded to the mounting plate 202. Since this embodiment has two opposing mounting plates 202, a reinforcing plate 204 is welded between each mounting plate 202 and the mounting platform 201. By providing the reinforcing plate 204, the connection strength and deformation resistance of the mounting plate 202 and the mounting platform 201 are further enhanced.

[0048] Of course, the position of the reinforcing plate 204 can be... Figure 3 As shown in the diagram, the reinforcing plate 204 is located on the outside of the mounting plate 202, that is, on the side away from the adjacent mounting plate 202. As an alternative implementation, the reinforcing plate 204 can also be welded to the inside of the mounting plate 202 without affecting or interfering with the installation of the spherical bearing on the mounting platform 201.

[0049] In some embodiments, one end of the mounting plate 202 inserted into the mounting groove 103 is flush with the second side surface 102. This design facilitates the subsequent welding process between the mounting plate 202 and the beam body 100. In addition, the flush design of the mounting plate 202 and the mounting groove 103 makes the side wall surface of the beam body 100 form a complete plane with no protrusions or grooves on the outside, which prevents mud and sand from accumulating in the mounting groove 103 during the operation of the road roller and corroding the connection position, and also facilitates the subsequent weld inspection work.

[0050] In this embodiment, the plane of the mounting plate 202 is perpendicular to the axis of the crossbeam body 100. This design allows the driving force and vibration impact energy received by the hinge seat 200 to be transmitted linearly to the crossbeam body 100 along the mounting plate 202, optimizing the force transmission path between the hinge seat 200 and the crossbeam body 100, which helps to ensure the stable connection between the hinge seat 200 and the crossbeam body 100.

[0051] Furthermore, the mounting plate 202 is welded to the second side 102; and / or, the mounting platform 201 is welded to the first side 101.

[0052] Here, the end of the mounting plate 202 inserted into the mounting groove 103 is provided with a first welding bevel 2021; and / or, the crossbeam body 100 is provided with a second welding bevel for welding the mounting plate 202 near the circumferential edge of the mounting groove 103.

[0053] In the above embodiments, a first welding bevel 2021 can be provided on the mounting plate 202, and a second welding bevel can be not provided on the crossbeam body 100; alternatively, the first welding bevel 2021 can be not provided on the mounting plate 202, and a second welding bevel can be provided on the crossbeam body 100; or welding bevels can be provided on both the mounting plate 202 and the crossbeam body 100, depending on factors such as the thickness and cross-sectional dimensions of the mounting plate 202. Generally, the angle between the first welding bevel 2021 and the second welding bevel is not less than 30°. Providing welding bevels on the mounting plate 202 and the crossbeam body 100 facilitates guiding the welding torch to perform welding work at the connection position of the mounting plate 202 and the crossbeam body 100, ensuring that the weld metal and the base material form a continuous and stable bond in the thickness direction of the vertical plate.

[0054] It should be noted that the connection between the mounting plate 202 and the beam body 100 is an interference fit plug-in joint. Torsional loads are directly transmitted to the beam body 100 through the surface contact pressure between the side wall of the vertical plate and the web of the beam, enhancing the overall torsional resistance and structural strength of the beam structure. By welding the mounting plate 202 and the beam body 100 together, the vibration impact of the vibrating wheel can prevent the surface contact slippage and micro-movement of the mounting plate 202 and the beam body 100, ensuring the fit strength between them. Furthermore, the welding of the mounting plate 202 and the beam body 100 also seals the mounting groove 103, preventing external mud and sand from seeping into the mounting groove 103 and corroding the mounting plate 202 and the beam body 100.

[0055] like Figure 3 As shown, in some embodiments, the beam structure also includes a support bearing seat 203, the two ends of which are respectively connected to two mounting plates 202, and the support bearing seat 203 uses a joint bearing through which the hinge frame is installed.

[0056] In the above embodiment, the support bearing seat 203 overlaps with the two mounting plates 202 on opposite sides. Mounting holes are provided on both sides of the support bearing seat 203. The side end of the support bearing seat 203 and the cross-sectional end of the mounting plate 202 are connected by fasteners 2031 that pass through both. Here, the fasteners 2031 can be bolts.

[0057] By providing a support bearing seat 203, the mounting platform 201 can be used to support the spherical bearings of the hinge frame and guide the spherical bearings to be installed on the mounting platform 201. Since the support bearing seat 203 is connected to the mounting plate 202 by fasteners 2031, when the support bearing seat 203 wears out after a period of operation, the fasteners 2031 can be directly removed to replace the support bearing seat 203 without disassembling the entire hinge seat 200, facilitating future maintenance.

[0058] Here, the aforementioned articulated frame and spherical bearing can be the articulated frame structural components of a road roller in related technologies. The spherical bearing is connected to the mounting platform 201 and is used to transmit the forward, backward and steering forces of the road roller to the articulated seat 200.

[0059] like Figure 3 As shown, in some embodiments, the mounting platform 201 is provided with a mounting hole 2011 for mounting a spherical plain bearing, and the mounting hole 2011 is coaxially arranged with the support bearing seat 203. Here, the mounting hole 2011 is adapted to the connecting end of the spherical plain bearing, and the mounting hole 2011 assembles the connecting end of the spherical plain bearing, so that the spherical plain bearing is installed in the mounting platform 201, realizing the force transmission and guiding function of the front frame.

[0060] like Figure 3 As shown in the embodiment of this application, the mounting platform 201 has a third welding bevel 2012 on the circumferential edge of one side facing the beam body 100.

[0061] The mounting plate 202 is inserted into the mounting groove 103. The mounting platform 201 abuts against and is welded to the side wall of the beam body 100. By setting a third welding bevel 2012 on the mounting platform 201, the circumferential edge of the mounting platform 201 is welded to the side wall of the beam body 100, which avoids relative micro-movement between the beam body 100 and the mounting plate 202. At the same time, it can also seal the internal space of the mounting groove 103 to prevent mud and sand from entering the mounting groove 103 and corroding the mounting plate 202 and the beam body 100.

[0062] It should be noted that the cross-sectional dimensions of the mounting platform 201 are larger than the opening dimensions of the mounting groove 103, and the mounting platform 201 completely blocks the mounting groove 103.

[0063] Preferably, during the fabrication of the beam structure, the mounting plate 202 and the beam body 100 can be welded first, and then the mounting platform 201 and the beam body 100 can be welded. This avoids the beam body 100 from deforming during welding when the mounting platform 201 and the beam body 100 are welded first, which could cause a gap between the mounting groove 103 and the mounting plate 202, thus avoiding affecting the normal welding of the mounting plate 202 and the beam body 100.

[0064] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0065] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A crossbeam structure for a road roller, characterized in that, include: The beam itself; The articulated mount includes a mounting platform and at least one mounting plate disposed on the mounting platform. The mounting platform is used to connect the articulated frame of the rear frame of the road roller. The mounting plate is inserted into the crossbeam body and extends from a first side of the crossbeam body to a second side of the crossbeam body. The first side and the second side are disposed opposite to each other. The mounting platform abuts against and is connected to the first side, and the mounting plate is connected to the second side.

2. The crossbeam structure of the road roller according to claim 1, characterized in that, The crossbeam body has a receiving cavity, and the crossbeam body is provided with a mounting groove that passes through the receiving cavity, the first side and the second side, and the mounting plate is inserted into the mounting groove.

3. The crossbeam structure of the road roller according to claim 2, characterized in that, One end of the mounting plate inserted into the mounting groove is flush with the second side surface.

4. The crossbeam structure of the road roller according to claim 3, characterized in that, The mounting plate is welded to the second side; and / or, the mounting platform is welded to the first side.

5. The crossbeam structure of the road roller according to claim 2, characterized in that, The plane containing the mounting plate is perpendicular to the axis of the crossbeam body.

6. The crossbeam structure of the road roller according to any one of claims 1 to 5, characterized in that, The mounting platform has a through hole, and the mounting plate is disposed on the mounting platform through the through hole. The mounting plate is welded to the mounting platform.

7. The crossbeam structure of the road roller according to claim 6, characterized in that, Two mounting plates are spaced apart on the mounting platform, and both mounting plates are inserted into the crossbeam body.

8. The crossbeam structure of the road roller according to claim 7, characterized in that, It also includes a support bearing seat, the two ends of which are respectively connected to the two mounting plates, and the support bearing seat is used to carry the joint bearing of the hinge frame.

9. The crossbeam structure of the road roller according to claim 8, characterized in that, The mounting platform is provided with mounting holes for mounting the spherical bearing, and the mounting holes are coaxially arranged with the support bearing seat.

10. A road roller, characterized in that, It includes a front frame, a rear frame, and an articulated frame connecting the front frame and the rear frame, wherein the front frame includes the crossbeam structure of the road roller as described in any one of claims 1 to 9.

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