Loader rear frame and loader

Abstract

The utility model provides a loading machine rear frame and a loading machine, and belongs to the technical field of loading machine structures, the loading machine rear frame comprises a force transmission assembly, a hinge assembly and a sealing assembly, the force transmission assembly, the hinge assembly and the sealing assembly form a vertically through containing space, and the loading machine rear frame further comprises a reinforcing frame arranged in the containing space. The reinforcing frame comprises a supporting mechanism, a connecting mechanism and a reinforcing mechanism, the supporting mechanism comprises a plurality of supporting modules, a reinforcing space is formed between every two adjacent supporting modules, and each supporting module comprises two supporting plates arranged at intervals; the connecting mechanism comprises a plurality of connecting modules, each connecting module comprises two connecting plates which are distributed at intervals in the vertical direction, and the connecting plates are arranged at the top or the bottom of the supporting plate; the reinforcing mechanism comprises a plurality of reinforcing modules, and each reinforcing module comprises a first reinforcing plate and a third reinforcing plate connected to the supporting plate. The utility model provides a loading machine rear frame and a loading machine and aims to solve the problems that in the prior art, a rear frame is insufficient in strength and poor in force transmission effect.

Description

Technical Field

[0001] This utility model belongs to the field of loader structure technology, and more specifically, it relates to a loader rear frame and a loader. Background Technology

[0002] The rear frame is a critical component of the loader and also the most stress-affected part. In a fuel-powered loader, the front of the rear frame connects to the front frame, the lower part to the rear drive axle, and the rear to the counterweight. In a new energy loader, the rear frame needs to house the battery pack, thus eliminating the need for a counterweight connection. Not only are most of the loader's components mounted on the rear frame, but the piping for various systems, including electrical, cooling, braking, and hydraulic systems, also needs to be routed there. Therefore, to ensure the loader's functionality and high reliability, the rear frame must not only provide mounting points for all components but also possess sufficient strength and rigidity to withstand the loader's complex stress conditions and prevent weld cracking and steel plate tearing due to impact loads from various directions during operation.

[0003] Existing rear frames in most technologies adopt a frame structure, relying primarily on the side plates on both sides to bear and transfer force. To improve the strength and rigidity of the rear frame, the overall thickness of the steel plates is usually increased, which inevitably increases the weight and manufacturing cost of the entire machine, resulting in unavoidable drawbacks in terms of overall performance and economy. Furthermore, since the rear frame of a new energy loader also needs to connect to the battery rack and bear the weight of the battery rack and battery pack, how to better transfer the force of the battery rack and battery pack to the outside and avoid localized stress concentration is also an urgent problem to be solved. Utility Model Content

[0004] The purpose of this utility model is to provide a loader rear frame and a loader, which aims to solve the problems of insufficient strength and poor force transmission effect of the rear frame in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] In a first aspect, a loader rear frame is provided, including a force transmission component, a hinge component connected to the front of the force transmission component, and a closing component connected to the rear of the force transmission component. The force transmission component, the hinge component, and the closing component enclose a frame structure, the middle area of ​​the frame structure being a vertically continuous accommodating space. The loader rear frame also includes a reinforcing frame disposed within the accommodating space, the reinforcing frame comprising:

[0007] The support mechanism includes multiple support modules spaced apart in a front-rear direction, with a reinforcement space formed between two adjacent support modules. Each support module includes two spaced support plates, the ends of which are connected to the force transmission component.

[0008] A connecting mechanism includes multiple connecting modules distributed along a left-right direction. Each connecting module includes two connecting plates spaced apart along a vertical direction. The connecting plates are disposed at the top or bottom of the support plate and are used to connect the multiple support modules.

[0009] The reinforcement mechanism includes multiple reinforcement modules, each of which is configured in a one-to-one correspondence with the support mechanism. Each reinforcement module includes a first reinforcement plate and a third reinforcement plate connected to the support plate. The third reinforcement plate is disposed within the reinforcement space. The first reinforcement plate is used to connect two support plates of the same support module.

[0010] In conjunction with the first aspect, in one possible implementation, the reinforcement mechanism further includes a second reinforcement plate connecting two adjacent sets of the support modules, the second reinforcement plate being further connected to the connecting plate.

[0011] In conjunction with the first aspect, in one possible implementation, the force transmission component includes two side plates spaced apart in the left-right direction; the hinge component is provided with a plurality of hinge seats spaced apart in the up-down direction, the hinge seats being respectively connected to the two side plates; the closure component includes a sealing plate connected to the two side plates and a fixing plate connected to the rear of the sealing plate, the fixing plate also being connected to the two side plates for providing a fixing position for the counterweight or battery rack.

[0012] In conjunction with the first aspect, in one possible implementation, the loader rear frame further includes a limiting plate disposed within the accommodating space, the two ends of the limiting plate abutting against the support plate and the hinge assembly respectively, and the limiting plate is also connected to the force transmission assembly.

[0013] In conjunction with the first aspect, in one possible implementation, the limiting plate includes a first limiting portion, a connecting portion, and a second limiting portion that are sequentially connected and arranged in a "Z" shape, wherein the front end of the first limiting portion abuts against the hinge assembly, and the rear end of the second limiting portion abuts against the support plate.

[0014] In conjunction with the first aspect, in one possible implementation, the reinforcing frame further includes a reinforcing plate disposed on the outside of the force transmission component, the reinforcing plate being disposed corresponding to the second reinforcing plate.

[0015] In conjunction with the first aspect, in one possible implementation, both the reinforcing plate and the second reinforcing plate are provided with weight-reducing holes.

[0016] In conjunction with the first aspect, in one possible implementation, the hinge assembly includes:

[0017] Multiple hinge mechanisms are spaced apart along the vertical direction. Each set of hinge mechanisms includes two spaced-apart hinge plates and an abutment plate connecting the two hinge plates; and

[0018] Multiple reinforcing mechanisms are arranged symmetrically in a mirror image along the left-right direction. Each reinforcing mechanism includes multiple reinforcing plates spaced apart along the front-back direction. The reinforcing plates abut against two adjacent hinge mechanisms and are connected to the force transmission component.

[0019] In conjunction with the first aspect, in one possible implementation, the loader rear frame further includes a force transmission plate connected to the outside of the force transmission assembly, the rear end of the force transmission plate being used to abut against the battery rack or configuration.

[0020] The beneficial effects of the loader rear frame provided by this utility model are as follows: Compared with the prior art, the loader rear frame of this utility model is equipped with a reinforcing frame in the accommodating area. The reinforcing frame limits the force transmission components in the left and right directions, improving the strength and deformation resistance of the force transmission components. In addition, the fixing frame is connected to the middle part of the force transmission components in the front and rear directions, providing a mounting position for the loader's rear axle. After the rear frame and the components mounted on the rear frame are subjected to force, the force is transmitted to the rear axle by the fixing frame, and then transmitted to the ground through the tire rim. The continuous and complete force transmission channel avoids the phenomenon of local stress concentration. Therefore, the fixing frame plays a crucial role in the force transmission of the entire rear frame. The first fixing plate connects the two support plates of the same support module, which not only limits the two support plates and ensures their position and strength stability, but also allows the adjacent support plates to collapse and absorb energy. The second reinforcing plate increases the contact area with the force transmission components, improves the reliability of the connection, and also makes the entire fixing frame form a box frame structure with superior strength. This invention does not require increasing the thickness of components. By optimizing the structure of the reinforcing frame, the strength of the entire rear frame is improved, forming a complete force transmission channel and avoiding the problems of local stress concentration and damage to the force transmission components.

[0021] Secondly, this utility model embodiment also provides a loader, including the loader rear frame described above.

[0022] The beneficial effects of the loader provided by this utility model are as follows: compared with the prior art, it adopts the above-mentioned loader rear frame, which has similar technical effects to the above-mentioned loader rear frame, and will not be described in detail here. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the structure of the loader rear frame provided in this embodiment of the utility model;

[0025] Figure 2 Another structural schematic diagram of the loader rear frame provided in this embodiment of the utility model;

[0026] Figure 3 This is a schematic diagram of the fixing frame used in an embodiment of the present utility model.

[0027] In the diagram: 1. Force transmission component; 101. Side plate; 102. Force transmission plate; 2. Hinge component; 201. Hinge mechanism; 2011. Hinge plate; 2012. Abutment plate; 202. Reinforcing mechanism; 2021. Reinforcing plate; 3. Enclosure component; 301. Sealing plate; 302. Fixing plate; 4. Fixing frame; 401. Reinforcement space; 402. Support module; 4021. Support plate; 403. Connecting module; 4031. Connecting plate; 404. Reinforcing module; 4041. First reinforcing plate; 4042. Second reinforcing plate; 4043. Third reinforcing plate; 405. Reinforcing plate; 5. Limiting plate. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] In the claims, description, and accompanying drawings of this utility model, unless otherwise expressly defined, the terms "first," "second," or "third," etc., are used to distinguish different objects, not to describe a specific order. The directional terms "upper" and "lower" in the claims, description, and accompanying drawings of this utility model correspond to the vertical direction of the vehicle body; the terms "left" and "right" correspond to the horizontal direction of the vehicle body; the terms "front" and "rear" correspond to the front-rear direction of the vehicle body; and the term "inner side" refers to the side of the vehicle body adjacent to the passenger compartment in the horizontal direction, and vice versa. Unless otherwise stated, other directional terms, such as "vertical," "clockwise," and "counterclockwise," indicate the direction or positional relationship based on the direction and positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, not 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 limiting the specific protection scope of this utility model. In the claims, description, and accompanying drawings of this utility model, unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" should be interpreted broadly to refer to any connection method in which there is no displacement or relative rotation relationship between the two parties. This includes non-removable fixed connections, detachable fixed connections, integral connections, and fixed connections via other devices or elements. In the claims, description, and accompanying drawings of this utility model, the terms "comprising," "having," and variations thereof are intended to mean "including but not limited to."

[0030] Please refer to the following: Figures 1 to 3The following describes the loader rear frame and loader provided by this utility model. The loader rear frame includes a force transmission component 1, a hinge component 2 connected to the front of the force transmission component 1, and a closing component 3 connected to the rear of the force transmission component 1. The force transmission component 1, hinge component 2, and closing component 3 enclose a frame structure. The middle area of ​​the frame structure is a vertically continuous accommodating space. The loader rear frame also includes a reinforcing frame disposed within the accommodating space. The reinforcing frame includes a support mechanism, a connecting mechanism, and a reinforcing mechanism. The support mechanism includes multiple support modules 402 spaced apart along the front-rear direction. A reinforcing space 401 is formed between two adjacent support modules 402. Each support module 402 includes two spaced support plates 4021. The ends of the support plates 4021 are connected to the force transmission component 1. Force component 1; the connecting mechanism includes multiple connecting modules 403 distributed in the left-right direction, each connecting module 403 including two connecting plates 4031 spaced apart in the up-down direction, the connecting plates 4031 being disposed at the top or bottom of the support plate 4021 for connecting multiple support modules 402; the reinforcement mechanism includes multiple reinforcement modules 404, each reinforcement module 404 being configured in a one-to-one correspondence with the support mechanism, each reinforcement module 404 including a first reinforcement plate 4041 and a third reinforcement plate 4043 connected to the support plate 4021, the third reinforcement plate 4043 being disposed within the reinforcement space 401, and the first reinforcement plate 4041 being used to connect the two support plates 4021 of the same support module 402.

[0031] Compared with the prior art, the loader rear frame provided by this utility model has a reinforcing frame in the receiving area. The reinforcing frame limits the force transmission component 1 in the left and right directions, improving the strength and deformation resistance of the force transmission component 1. In addition, the fixing frame 4 is connected to the middle part of the force transmission component 1 in the front and rear directions, providing a mounting position for the loader's rear axle. When the rear frame and the components mounted on the rear frame are subjected to force, the force is transmitted to the rear axle by the fixing frame 4, and then to the ground through the tire rim. The continuous and complete force transmission channel avoids the phenomenon of local stress concentration. Therefore, the fixing frame 4 plays a connecting role in the force transmission of the entire rear frame. The first fixing plate 302 connects the two support plates 4021 of the same support module 402, which not only limits the two support plates 4021 to ensure their position and strength stability, but also allows the adjacent support plates 4021 to collapse and absorb energy. The third reinforcing plate 4043 is connected to the support plate 4021 and the second reinforcing plate 4042, which can enhance the torsional strength of the support plate 4021, increase the load-bearing capacity of the entire reinforcing frame, and reduce the probability of breakage or deformation under stress. This utility model does not require increasing the thickness of the components. By optimizing the structure of the reinforcing frame, it improves the strength of the entire rear frame, forms a complete force transmission channel, and avoids the problems of local stress concentration and damage to the force transmission component 1 under stress.

[0032] In some embodiments, please refer to Figure 3The reinforcement mechanism also includes a second reinforcement plate 4042 that connects two adjacent support modules 402, and the second reinforcement plate 4042 is also connected to the connecting plate 4031.

[0033] In this embodiment, the second reinforcing plate 4042 increases the contact area with the force transmission component 1, improves the reliability of the connection, and also makes the entire fixing frame 4 form a box frame structure with superior strength.

[0034] In some embodiments, please refer to Figure 3 The force transmission component 1 includes two side plates 101 spaced apart in the left-right direction; the hinge component 2 is provided with a plurality of hinge seats spaced apart in the up-down direction, the hinge seats are respectively connected to the two side plates 101; the sealing component 3 includes a sealing plate 301 connected to the two side plates 101 and a fixing plate 302 connected to the rear of the sealing plate 301, the fixing plate 302 is also connected to the two side plates 101, and is used to provide a fixing position for the counterweight or battery rack.

[0035] In existing systems, the counterweight or battery rack is directly connected to the sealing plate 301. Since the sealing plate 301 extends vertically, it cannot provide support for the counterweight or battery rack, relying solely on bolts or welds for support. This embodiment adds a fixing plate 302 at the rear of the sealing plate 301. The counterweight or battery rack is connected to both the fixing plate 302 and the sealing plate 301. The fixing plate 302 provides support for the counterweight or battery rack, thereby improving the connection stability. Furthermore, in this embodiment, the two side plates 101, multiple hinge seats, and the enclosed enclosure form a box-frame structure, which enhances the connection strength between the hinge assembly 2 and the force transmission assembly 1, and also improves the rigidity and strength of the entire loader's rear frame.

[0036] In some embodiments, please refer to Figure 2 The loader's rear frame also includes a limiting plate 5 located within the accommodating space. The two ends of the limiting plate 5 abut against the support plate 4021 and the hinge assembly 2, respectively, and the limiting plate 5 is also connected to the force transmission assembly 1.

[0037] The limiting plate 5 abuts against the support plate 4021 and the hinge assembly 2 in the front-to-back direction, respectively, limiting the hinge assembly 2 and the support mechanism to prevent deformation of the hinge assembly 2 and the support mechanism in the front-to-back direction after being subjected to force. The limiting plate 5 is connected to the force transmission assembly 1, thereby improving the strength and rigidity of the force transmission assembly 1, and at the same time, it can transmit force to the hinge assembly 2 and the support mechanism to avoid stress concentration.

[0038] Optionally, multiple limit plates 5 are provided along the vertical direction.

[0039] In some embodiments, please refer to Figure 2The limiting plate 5 includes a first limiting part, a connecting part, and a second limiting part that are sequentially connected and arranged in a "Z" shape. The front end of the first limiting part abuts against the hinge assembly 2, and the rear end of the second limiting part abuts against the support plate 4021.

[0040] When the hinge assembly 2 or the support plate 4021 is subjected to force, the force will be transmitted outward through the limiting plate 5. The limiting plate 5 is set as a "Z" shaped structure, which can improve the strength on the one hand and reduce the risk of breakage under force on the other hand compared with a straight plate structure.

[0041] In some embodiments, please refer to Figure 1 The reinforcement frame also includes a reinforcing plate 405 disposed on the outside of the force transmission component 1, and the reinforcing plate 405 is disposed correspondingly to the second reinforcing plate 4042.

[0042] Since the location where the second fixing plate 302 is installed in the force transmission component 1 needs to withstand greater forces, a reinforcing plate 405 is installed at that location to improve the strength and rigidity of that area of ​​the force transmission component 1 and strengthen this weak area. Moreover, the reinforcing plate 405 is located on the outside of the force transmission component 1 to avoid interference with the second reinforcing plate 4042.

[0043] In some embodiments, please refer to Figure 1 Weight reduction holes are provided on both the reinforcing plate 405 and the second reinforcing plate 4042.

[0044] The weight reduction holes can reduce the weight of the reinforcing plate 405 and the second reinforcing plate 4042, which is beneficial to achieving the lightweighting of the whole vehicle.

[0045] In some embodiments, please refer to Figure 1 The hinge assembly 2 includes multiple hinge mechanisms 201 and multiple reinforcing mechanisms 202. The multiple hinge mechanisms 201 are spaced apart in the vertical direction. Each set of hinge mechanisms 201 includes two spaced hinge plates 2011 and an abutment plate 2012 connecting the two hinge plates 2011. The multiple reinforcing mechanisms 202 are mirror-symmetrically arranged in the horizontal direction. Each reinforcing mechanism 202 includes multiple reinforcing plates 2021 spaced apart in the front-back direction. The reinforcing plates 2021 abut against two adjacent hinge mechanisms 201 and are connected to the force transmission assembly 1.

[0046] Multiple reinforcing mechanisms 202 are arranged symmetrically in a left-right direction and are respectively connected to two adjacent hinge mechanisms 201, thereby providing a stable abutting force to the two adjacent hinge mechanisms 201 and ensuring their positional stability. The hinge assembly 2 includes two spaced-apart hinge plates 2011 and an abutting plate 2012 that abuts against the two hinge plates 2011 in a vertical direction, connecting the two hinge plates 2011 into a single component, thereby improving the strength of the hinge mechanism 201.

[0047] In some embodiments, please refer to Figure 1The loader's rear frame also includes a force transmission plate 102 connected to the outside of the force transmission assembly 1, the rear end of which is used to abut against the battery rack or configuration.

[0048] The force transmission plate 102 and the force transmission assembly 1 work together to transfer the force on the battery rack or counterweight at the rear of the rear frame to the outside, increasing the force transmission channel and avoiding local stress concentration.

[0049] Based on the same inventive concept, this utility model also provides a loader. The loader includes the aforementioned loader rear frame.

[0050] The loader provided by this utility model adopts the aforementioned loader rear frame, with a reinforcing frame installed in the accommodating area. The reinforcing frame limits the force transmission component 1 in the left and right directions, improving the strength and deformation resistance of the force transmission component 1. Additionally, a fixing frame 4 is connected to the middle part of the force transmission component 1 in the front-rear direction, providing an installation position for the loader's rear axle. When the rear frame and its components are subjected to force, the force is transmitted to the rear axle by the fixing frame 4, and then to the ground through the tire rim. This continuous and complete force transmission channel avoids localized stress concentration. Therefore, the fixing frame 4 plays a crucial role in the force transmission of the entire rear frame. The first fixing plate 302 connects the two support plates 4021 of the same support module 402, not only limiting the two support plates 4021 to ensure their positional and strength stability, but also allowing the adjacent support plates 4021 to collapse and absorb energy. The second reinforcing plate 4042 increases the contact area with the force transmission component 1, improving the reliability of the connection. It also makes the entire fixing frame 4 form a box-frame structure, resulting in superior strength. This utility model does not require increasing the thickness of the components. By optimizing the structure of the reinforcing frame, it improves the strength of the entire rear frame, forms a complete force transmission channel, and avoids the problems of local stress concentration and damage to the force transmission component 1 under stress.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A loader rear frame, characterized in that, The loader includes a force transmission component, a hinged component connected to the front of the force transmission component, and a closed component connected to the rear of the force transmission component. The force transmission component, the hinged component, and the closed component enclose a frame structure. The middle area of ​​the frame structure is a through-type accommodating space. The loader's rear frame also includes a reinforcing frame disposed within the accommodating space. The reinforcing frame includes: The support mechanism includes multiple support modules spaced apart in a front-rear direction, with a reinforcement space formed between two adjacent support modules. Each support module includes two spaced support plates, the ends of which are connected to the force transmission component. A connecting mechanism includes multiple connecting modules distributed along a left-right direction. Each connecting module includes two connecting plates spaced apart along a vertical direction. The connecting plates are disposed at the top or bottom of the support plate and are used to connect the multiple support modules. The reinforcement mechanism includes multiple reinforcement modules, each of which is configured in a one-to-one correspondence with the support mechanism. Each reinforcement module includes a first reinforcement plate and a third reinforcement plate connected to the support plate. The third reinforcement plate is disposed within the reinforcement space. The first reinforcement plate is used to connect two support plates of the same support module.

2. The loader rear frame as described in claim 1, characterized in that, The reinforcement mechanism further includes a second reinforcement plate connecting two adjacent sets of the support modules, and the second reinforcement plate is also connected to the connecting plate.

3. The loader rear frame as described in claim 1, characterized in that, The force transmission component includes two side plates spaced apart in the left-right direction; the hinge component is provided with a plurality of hinge seats spaced apart in the up-down direction, the hinge seats being connected to the two side plates respectively; the closure component includes a sealing plate connected to the two side plates and a fixing plate connected to the rear of the sealing plate, the fixing plate also being connected to the two side plates for providing a fixing position for the counterweight or battery rack.

4. The loader rear frame as described in claim 1, characterized in that, The loader's rear frame also includes a limiting plate disposed within the accommodating space. The two ends of the limiting plate abut against the support plate and the hinge assembly, respectively, and the limiting plate is also connected to the force transmission assembly.

5. The loader rear frame as described in claim 4, characterized in that, The limiting plate includes a first limiting part, a connecting part, and a second limiting part that are sequentially connected and arranged in a "Z" shape. The front end of the first limiting part abuts against the hinge assembly, and the rear end of the second limiting part abuts against the support plate.

6. The loader rear frame as described in claim 2, characterized in that, The reinforcement frame also includes a reinforcing plate disposed on the outside of the force transmission component, and the reinforcing plate is disposed corresponding to the second reinforcement plate.

7. The loader rear frame as described in claim 6, characterized in that, Both the reinforcing plate and the second reinforcing plate have weight-reducing holes.

8. The loader rear frame as described in claim 1, characterized in that, The hinge assembly includes: Multiple hinge mechanisms are spaced apart along the vertical direction. Each set of hinge mechanisms includes two spaced-apart hinge plates and an abutment plate connecting the two hinge plates; and Multiple reinforcing mechanisms are arranged symmetrically in a mirror image along the left-right direction. Each reinforcing mechanism includes multiple reinforcing plates spaced apart along the front-back direction. The reinforcing plates abut against two adjacent hinge mechanisms and are connected to the force transmission component.

9. The loader rear frame as described in claim 1, characterized in that, The loader rear frame also includes a force transmission plate connected to the outside of the force transmission assembly, the rear end of which is used to abut against the battery rack or configuration.

10. A loader, characterized in that, The loader rear frame has any one of claims 1-9.

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