A front frame and a loader

Abstract

The utility model provides a front frame and loader relates to loader structure field. The front frame specifically includes a plurality of support plate components, a plurality of support plate components are connected through the connecting plate component, and support plate component is connected with hinged plate component still, thereby can effectively guarantee the stability of the whole structure of the front frame, further, the top of hinged plate component is provided with the mounting space for installing the driving shed, namely can realize the driving shed subsidence, and then can effectively reduce the height of the whole loader, satisfy the use demand of low height working condition, besides, the top of hinged plate component still is provided with the recessed portion that is concave downward, and the foot space of driver can be formed at recessed portion, based on the existence of recessed portion, in the case where the whole driving shed is sunken, the operating space of driver is not excessively compressed, and the operating comfort of driving can be guaranteed.

Description

Technical Field

[0001] This application relates to the field of loader structures, and more particularly to a front frame and a loader. Background Technology

[0002] In existing loaders, the cab is usually mounted on the rear frame. To meet the low-profile working conditions in mines and tunnels, there are strict requirements on the overall height of the loader. However, due to structural limitations, large-tonnage loaders are relatively tall, which is not convenient for underground and tunnel operations, and thus cannot meet the needs of loaders for low-profile working conditions. Utility Model Content In view of this, the purpose of this application is to provide a front frame and loader to solve the problem that existing large-tonnage loaders are too tall to be used in low-profile working conditions.

[0003] In accordance with the above objectives, a first aspect of the present invention provides a front frame, wherein the front frame comprises: Support plate assemblies, wherein a plurality of support plate assemblies are arranged at intervals along the width direction of the front frame; each support plate assembly includes a plurality of support plates, the plurality of support plates being arranged at intervals along the width direction of the front frame; A hinge plate assembly is connected to a support plate assembly. The top of the hinge plate assembly has a downwardly recessed portion, and the top of the hinge plate assembly has an installation space for installing a driver's cab. A connecting plate assembly is connected between two adjacent support plate assemblies.

[0004] Preferably, the hinge plate assembly includes a first hinge plate, a second hinge plate, a third hinge plate, and a fourth hinge plate arranged at intervals from top to bottom along the height direction of the front frame, wherein the first hinge plate has a through hole; the through hole and the second hinge plate form the recess.

[0005] Preferably, the hinge plate assembly further includes a bent plate that surrounds at least a portion of the hole wall of the through hole and extends downward to the second hinge plate.

[0006] Preferably, the hinge plate assembly further includes a reinforcing member disposed between the first hinge plate and the second hinge plate; the first hinge plate and the second hinge plate are provided with a connecting hole for hinged to one end of the steering cylinder, and the reinforcing member is located behind the connecting hole.

[0007] Preferably, the bending plate is formed as a U-shaped plate with its opening facing the connecting plate assembly. The support plate assembly includes at least a first support plate and a second support plate. The first support plate is located outside the second support plate. The front side of the through hole extends forward to the front side of the first hinge plate. A portion of the second support plate forms an extension that extends into the through hole. The extension has a connecting portion that connects to the open end of the bending plate.

[0008] Preferably, the connecting plate assembly includes a first connecting plate; the first connecting plate, the extension portion, the bending plate, and the second hinge plate together form the recessed portion.

[0009] Preferably, the support plate assembly further includes a base plate, a rear plate, and a bending plate; the bottom sides of the first support plate and the second support plate are connected through the base plate, the upper rear part of the first support plate and the second support plate are connected through the rear plate, the bending plate is connected between the first support plate and the second support plate, the upper side of the bending plate is bent backward and connected to the rear plate, and the lower side of the bending plate is bent backward and extends to the second hinge plate.

[0010] Preferably, the connecting plate assembly includes a second connecting plate and a third connecting plate. The second connecting plate is connected to the front side of the first connecting plate and is disposed above the third connecting plate. The second connecting plate has a perforated hole for hydraulic pipelines to pass through, and the third connecting plate is used to install a multi-way valve.

[0011] Preferably, the third connecting plate is inclined relative to the horizontal plane, and the front side of the third connecting plate is higher than the rear side of the third connecting plate.

[0012] According to a second aspect of the present invention, a loader is provided, wherein the loader includes a front frame as described above.

[0013] According to the front frame and loader of this utility model, the front frame specifically includes multiple support plate assemblies, which are connected by connecting plate assemblies and also connected to hinge plate assemblies, thereby effectively ensuring the stability of the overall structure of the front frame. Furthermore, the top of the hinge plate assembly is provided with an installation space for installing a cab, which enables the cab to be lowered, thereby effectively reducing the overall height of the loader to meet the needs of low-profile working conditions. In addition, the top of the hinge plate assembly is also provided with a downwardly recessed portion, which can form a foot space for the driver. Based on the existence of this recessed portion, even when the cab is lowered as a whole, the driver's operating space is not excessively compressed, and the driving comfort can be guaranteed.

[0014] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a partial schematic diagram of the front frame according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the front frame according to an embodiment of the present invention from a first-view perspective; Figure 3 This is a partial schematic diagram of the front frame according to an embodiment of the present invention from a second perspective; Figure 4 This is a partial schematic diagram of the front frame of a vehicle according to an embodiment of the present invention from a third-person perspective; Figure 5 This is a partial schematic diagram of the front frame from a fourth-angle perspective according to an embodiment of the present invention.

[0017] Icons: 11-First support plate; 12-Second support plate; 111-Hinge hole; 112-Mounting hole; 13-Rear plate; 141-First reinforcing plate; 142-Second reinforcing plate; 143-Bent plate; 1431-First plate segment; 1432-Second plate segment; 1433-Third plate segment; 15-Base plate; 211-First connecting plate; 212-Second connecting plate; 213-Third connecting plate; 214-Hollow hole; 215-Fourth connecting plate; 221-First hinge plate; 2211-Reinforcing hole; 222-Second hinge plate; 223-Third hinge plate; 224-Fourth hinge plate; 225-First hinge hole; 226-Second hinge hole; 231-Bent plate; 232-Connecting upright plate; 233-Reinforcing member. Detailed Implementation The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0018] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0019] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0020] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0021] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0022] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0023] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0024] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0025] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0026] The first aspect of this utility model provides a front frame, which includes multiple support plate assemblies connected together by connecting plate assemblies. The support plate assemblies are also connected to hinge plate assemblies, thereby ensuring the overall structural stability of the front frame. Furthermore, the support plate assemblies can mount the boom, the hydraulic cylinder articulation seat, and the front drive axle. The hinge plate assemblies can be fitted with a cab and lowered, thereby effectively reducing the overall height of the loader to meet the needs of low-profile working conditions. In addition, the hinge plate assemblies can also ensure that the driver has sufficient operating space when the cab is lowered, thereby meeting the driver's operating comfort.

[0027] The specific structure and connection relationship of the aforementioned components of the front frame according to this utility model will be described in detail below.

[0028] In this embodiment, as Figures 1 to 5 As shown, there are two support plate assemblies, which are structurally similar and spaced apart along the width direction of the front frame (which is also the width direction of the loader body). Specifically, each support plate assembly includes multiple support plates (in this embodiment, a first support plate 11 and a second support plate 12). The first support plate 11 and the second support plate 12 are also spaced apart along the width direction of the vehicle body. The first support plate 11 and the second support plate 12 jointly support the boom, boom cylinder, and front drive axle, which can effectively ensure the rigidity of the front frame and increase the load-bearing capacity of the front frame.

[0029] In addition, the support plate assembly also includes a base plate 15, along the height direction of the front frame (i.e., the height direction of the loader body), the bottom sides of the first support plate 11 and the second support plate 12 are correspondingly connected through the base plate 15; furthermore, the support plate assembly also includes a rear plate 13, along the length direction of the vehicle body, the upper rear part of the first support plate 11 and the second support plate 12 are correspondingly connected through the rear plate 13, so that the support plate assembly is formed into a semi-box-shaped structure, the inner cavity of which can be used to support the boom, boom cylinder and front drive axle.

[0030] Furthermore, the support plate assembly also includes a bent plate 143, which is connected between the first support plate 11 and the second support plate 12. The upper side of the bent plate 143 is bent backward and connected to the rear plate 13, and the lower side of the bent plate 143 is bent backward and extends to the second hinge plate 222. The bent plate 143 can enhance the structural strength of the support assembly.

[0031] Furthermore, such as Figures 1 to 3 As shown, along the length of the vehicle body, a reinforcing member is connected to the front side of the rear panel 13. This reinforcing member has a first reinforcing plate 141 and a second reinforcing plate 142 respectively connected to the first support plate 11 and the second support plate 12. Both the first reinforcing plate 141 and the second reinforcing plate 142 are connected to a bent plate 143, which is also connected to the rear panel 13. This gives the support plate assembly high strength and load-bearing capacity. Figure 2 As shown, the bending plate 143 includes a first plate segment 1431, a second plate segment 1432 and a third plate segment 1433. The first plate segment 1431 is inclined to avoid the boom cylinder, and the second plate segment 1432 and the third plate segment 1433 can avoid interference with the boom.

[0032] Although the front drive axle is not shown in the figure, it is connected to the aforementioned base plate 15. The ground-transmitted undulating load passes through the front drive axle and base plate 15, and is then applied to the two first support plates 11 and two second support plates 12, ensuring the reliability of the front frame. Furthermore, the first support plates 11 and second support plates 12 jointly support the boom and boom cylinder articulation seat, as shown... Figures 1 to 2 As shown, the first support plate 11 and the second support plate 12 are formed with mounting holes 112 corresponding to the boom cylinder articulation seat. The boom articulation seat can be installed through the mounting holes 112, and the front frame can be made lighter while ensuring the strength of the front frame. Furthermore, the first support plate 11 and the second support plate 12 are also formed with hinge holes 111 corresponding to the hinge shaft. The hinge shaft passes through the first support plate 11, the boom and the second support plate 12 in sequence (the conventional setting of the hinge shaft will not be described in detail).

[0033] It should be noted that there are no specific restrictions on the specifications, shape, and spacing of the individual plate components in the support plate assembly. These should be determined comprehensively based on actual conditions, such as loading specifications, as long as the aforementioned technical effects can be achieved. Furthermore, in this embodiment, the various plate components of the support plate assembly are connected by welding to improve the stability of the support plate assembly and the overall structure of the front frame.

[0034] In this embodiment, as Figures 3 to 5 As shown, the two support plate assemblies are connected as one unit by a connecting plate assembly. Specifically, along the width direction of the front frame, the connecting plate assembly is disposed between the two sets of support plate assemblies; more specifically, the connecting plate assembly includes a first connecting plate 211, a second connecting plate 212, and a third connecting plate 213, so that the connecting plate assembly and the two sets of support plate assemblies enclose an installation space, which can be used to install hydraulic components such as hydraulic valves, thus effectively improving space utilization.

[0035] Furthermore, the second connecting plate 212 is connected to the front side of the first connecting plate 211. The second connecting plate 212 is positioned above the third connecting plate 213. The second connecting plate 212 has a perforated hole 214 for hydraulic lines to pass through. This perforated hole 214 reduces pipe bends and also serves as a maintenance window for easy future maintenance. The third connecting plate 213 can be used to install a multi-way valve. The third connecting plate 213 is inclined relative to the horizontal plane, and its front side is higher than its rear side to facilitate the arrangement of the hydraulic lines for the hydraulic valve.

[0036] The connecting plate assembly also includes a fourth connecting plate 215, which is connected between the two second support plates 12. The rear side of the fourth connecting plate 215 is connected to the front side of the second connecting plate 212. The first support plate 11 and the second support plate 12 can be further strengthened by the fourth connecting plate 215, thereby ensuring the torsional resistance of the front frame.

[0037] Furthermore, the two ends of the connecting plate assembly along the width direction of the front frame are respectively formed as mounting ends corresponding to the support plate assembly. That is, the two sets of support plate assemblies are welded to their corresponding mounting ends to ensure the torsional resistance of the front frame in the width direction of the vehicle body. In the connecting plate assembly, there are no specific restrictions on the number, shape, specifications, etc. of the connecting plates. For example, for the sake of manufacturing convenience, the connecting plate assembly in this embodiment is actually composed of multiple plate components.

[0038] Furthermore, in this embodiment, the front frame also includes an articulated plate assembly, such as... Figures 4 to 5 As shown, the articulation plate assembly is connected to the support plate assembly along the length of the front frame. The top of the articulation plate assembly has a downwardly recessed portion, and the top of the articulation plate assembly also has a mounting space for installing the driver's canopy. Specifically, the articulation plate assembly includes a first articulation plate 221, a second articulation plate 222, a third articulation plate 223, and a fourth articulation plate 224 arranged at intervals from top to bottom along the height direction of the front frame; the first articulation plate 221 has a through hole; the through hole and the second articulation plate 222 form the aforementioned recessed portion.

[0039] Furthermore, the hinge plate assembly also includes a bending plate 231, which surrounds at least a portion of the hole wall of the through hole and extends downward to the second hinge plate 222. The bending plate 231 blocks at least a portion of the recess in the circumferential direction, preventing the driver's foot from getting stuck between the first hinge plate 221 and the second hinge plate 222, thereby improving the safety of the driver during operation.

[0040] Specifically, the bending plate 231 is formed as a U-shaped plate with its opening facing the connecting plate assembly. The front side of the through hole extends forward to the front side of the first hinge plate 221. A portion of the second support plate 12 forms an extension that extends into the through hole, and this extension has a connecting portion that connects to the open end of the bending plate 231. The first connecting plate 211, the extension, the bending plate 231, and the second hinge plate 222 together form the recessed portion. In this way, a foot space for the driver can be formed in the recessed portion. Based on the existence of this space, even when the entire cab is lowered, the driver's operating space is not excessively compressed, and driving comfort can be guaranteed.

[0041] Furthermore, in this embodiment, the first hinge plate 221 and the second hinge plate 222 are each formed with corresponding first hinge holes 225, and the two first hinge holes 225 together form the upper hinge structure of the front frame; the third hinge plate 223 and the fourth hinge plate 224 are each formed with corresponding second hinge holes 226, and the two second hinge holes 226 together form the lower hinge structure of the front frame. In addition, the first hinge plate 221 and the second hinge plate 222 are provided with connection holes for hinged to one end of the steering cylinder.

[0042] Furthermore, such as Figure 2 and Figure 5 As shown, a reinforcing member 233 is provided between the first hinge plate 221 and the second hinge plate 222. The reinforcing member 233 is located behind the two connecting holes. One end of the steering cylinder is hinged to the connecting hole, and the other end of the steering cylinder is inclined inward and located inside the reinforcing member 233. The reinforcing member 233 is connected to the first hinge plate 221 and the second hinge plate 222 by bolts. This facilitates the installation of the steering cylinder and further improves the strength of the front frame. In addition, the first hinge plate 221 has a reinforcing hole 2211 for mounting the cab (i.e., the top of the first hinge plate 221 is used to install the cab). When the vehicle experiences a rollover or similar situation, the force on the cab is distributed to the first hinge plate 221 and the second hinge plate 222. Due to the presence of the reinforcing member 233, the overall structural strength of the first hinge plate 221 and the second hinge plate 222 is increased, which can effectively reduce the deformation of the front frame and provide effective support for the cab.

[0043] In addition, such as Figures 4 to 5 As shown, the articulation plate assembly also includes a connecting upright plate 232. Along the width direction of the front frame, the connecting upright plate 232 is disposed between the two second support plates 12 (and correspondingly connected to the two second support plates 12). Along the height direction of the front frame, the connecting upright plate 232 is disposed between the second articulation plate 222 and the fourth articulation plate 224. A third articulation plate 223 is correspondingly connected to the connecting upright plate 232 and the two second support plates 12. The articulation plate assembly also includes a reinforcing bent plate disposed between the first articulation plate 221 and the second articulation plate 222, the two ends of which are connected to the first support plate 11.

[0044] In this embodiment, as Figures 4 to 5 As shown, the first hinge plate 221 and the second hinge plate 222 are respectively engaged with the rear of the two first support plates 11 and welded together; in addition, the third hinge plate 223 and the fourth hinge plate 224 are disposed between the two second support plates 12, and the third hinge plate 223 and the fourth hinge plate 224 are respectively welded and fixed to the rear inner side of the two second support plates 12.

[0045] According to the front frame described above, the front frame specifically includes multiple support plate assemblies, which are connected by connecting plate assemblies and also connected to hinge plate assemblies, thereby effectively ensuring the stability of the overall structure of the front frame. Furthermore, the top of the hinge plate assembly is provided with an installation space for mounting the cab, which allows the cab to be lowered, thereby effectively reducing the overall height of the loader to meet the needs of low-profile working conditions. In addition, the top of the hinge plate assembly is also provided with a downwardly recessed portion, which forms a foot space for the driver. Based on the existence of this recessed portion, even when the cab is lowered, the driver's operating space is not excessively compressed, and the driving comfort is guaranteed.

[0046] According to a second aspect of the present invention, a loader is provided, the loader including a front frame as described above, and further including a rear frame articulated corresponding to the front frame. Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be defined by the protection scope of the claims.

Claims

1. A front frame, characterized in that, The front frame includes: Support plate assemblies, wherein a plurality of support plate assemblies are arranged at intervals along the width direction of the front frame; each support plate assembly includes a plurality of support plates, the plurality of support plates being arranged at intervals along the width direction of the front frame; A hinge plate assembly is connected to a support plate assembly. The top of the hinge plate assembly has a downwardly recessed portion, and the top of the hinge plate assembly has an installation space for installing a driver's cab. A connecting plate assembly is connected between two adjacent support plate assemblies.

2. The front frame according to claim 1, characterized in that, The hinge plate assembly includes a first hinge plate (221), a second hinge plate (222), a third hinge plate (223), and a fourth hinge plate (224) arranged at intervals from top to bottom along the height direction of the front frame. The first hinge plate (221) has a through hole. The through hole and the second hinge plate (222) form the recess.

3. The front frame according to claim 2, characterized in that, The hinge plate assembly further includes a bent plate (231) that surrounds at least a portion of the hole wall of the through hole and extends downward to the second hinge plate (222).

4. The front frame according to claim 2, characterized in that, The hinge plate assembly further includes a reinforcing member (233) disposed between the first hinge plate (221) and the second hinge plate (222); the first hinge plate (221) and the second hinge plate (222) are provided with connecting holes for hinged to one end of the steering cylinder, and the reinforcing member (233) is located behind the connecting holes.

5. The front frame according to claim 3, characterized in that, The bending plate (231) is formed as a U-shaped plate with its opening facing the connecting plate assembly. The support plate assembly includes at least a first support plate (11) and a second support plate (12). The first support plate (11) is located outside the second support plate (12). The front side of the through hole extends forward to the front side of the first hinge plate (221). A portion of the second support plate (12) forms an extension that extends into the through hole. The extension has a connecting portion that connects to the opening end of the bending plate (231).

6. The front frame according to claim 5, characterized in that, The connecting plate assembly includes a first connecting plate (211); the first connecting plate (211), the extension portion, the bending plate (231), and the second hinge plate (222) together form the recessed portion.

7. The front frame according to claim 5, characterized in that, The support plate assembly also includes a base plate (15), a rear plate (13), and a bending plate (143); the bottom sides of the first support plate (11) and the second support plate (12) are connected by the base plate (15), the upper rear part of the first support plate (11) and the second support plate (12) are connected by the rear plate (13), the bending plate (143) is connected between the first support plate (11) and the second support plate (12), the upper side of the bending plate (143) is bent backward and connected to the rear plate (13), and the lower side of the bending plate (143) is bent backward and extends to the second hinge plate (222).

8. The front frame according to claim 6, characterized in that, The connecting plate assembly includes a second connecting plate (212) and a third connecting plate (213). The second connecting plate (212) is connected to the front side of the first connecting plate (211). The second connecting plate (212) is disposed above the third connecting plate (213). The second connecting plate (212) has a perforated hole (214) for hydraulic pipelines to pass through. The third connecting plate (213) is used to install a multi-way valve.

9. The front frame according to claim 8, characterized in that, The third connecting plate (213) is inclined relative to the horizontal plane, and the front side of the third connecting plate (213) is higher than the rear side of the third connecting plate (213).

10. A loader, characterized in that, The loader includes a front frame as described in any one of claims 1 to 9.

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