A rear frame and loader

Abstract

The utility model relates to loader technical field especially provides a back frame and loader, include: frame body, the frame body includes front fixed frame, rear fixed frame and connecting frame, the connecting frame sets up between the front fixed frame with rear fixed frame, the top of front fixed frame is located below the top of rear fixed frame, the counterweight body sets up in the rear end of rear fixed frame, the counterweight body includes counterweight body and counterweight cover, the counterweight body inside is provided with a plurality of crosspieces, the crosspiece will the counterweight body divide into a plurality of counterweight groove, the utility model discloses connecting frame can be oblique or vertical installation between front fixed frame and rear fixed frame, make the top surface of rear fixed frame be located above the top surface of front fixed frame and form the ladder type structure of low in front and high in back, make cab installation height greatly reduce, satisfy the passing requirement of short shed car in low space.

Description

Technical Field

[0001] This utility model relates to the field of loader technology, and in particular to a rear frame and a loader. Background Technology

[0002] The rear frame plays a crucial role in loaders by accommodating key components such as the transmission system and cab. For low-profile loader trucks, due to strict limitations on the overall height, traditional frames, where the top heights of various parts are roughly the same, make it difficult to lower the cab height. This results in the overall height exceeding the allowable range for low-profile loader trucks, making it impossible to operate smoothly in places with limited height, such as low-ceilinged mines and low-ceilinged factory buildings. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] To address the aforementioned problems, the first aspect of this application provides a rear frame, comprising:

[0005] The frame includes a front fixed frame, a rear fixed frame, and a connecting frame. The connecting frame is disposed between the front fixed frame and the rear fixed frame, and the top of the front fixed frame is located below the top of the rear fixed frame.

[0006] The counterweight is located at the rear end of the rear fixed frame. The counterweight includes a counterweight body and a counterweight cover plate. The counterweight body has several horizontal bars inside, which divide the counterweight body into several counterweight slots.

[0007] Optionally, the rear fixing frame is detachably connected to the counterweight.

[0008] Optionally, the rear fixed frame has symmetrical slots at its rear end, and a locking plate is provided at the matching position between the counterweight body and the slot. A connecting piece is provided between the locking plate and the rear fixed frame.

[0009] Optionally, the card plate has an L-shaped structure.

[0010] Optionally, limit blocks are provided on both sides of the rear frame, and a sliding groove is provided at the matching position of the counterweight body and the limit blocks.

[0011] Optionally, a counterweight plate is also included, which is disposed within the counterweight groove.

[0012] Optionally, a first reinforcing beam is provided between the rear frame bodies, and an mounting plate is provided on the rear frame body.

[0013] Optionally, a second reinforcing beam is provided between the connecting frames.

[0014] A second aspect of this application provides a loader that includes a rear frame as described in any of the above technical solutions.

[0015] Beneficial effects

[0016] The embodiments of this utility model provide a rear frame and loader, in which the connecting frame can be installed tilted or vertically between the front and rear fixed frames, so that the top surface of the rear fixed frame is above the top surface of the front fixed frame, forming a stepped structure with a lower front and higher rear. This significantly reduces the installation height of the cab, meeting the passage requirements of low-cab trucks in low-ceilinged spaces. The counterweight body has several transverse sections inside, dividing it into multiple independent counterweight slots. In practical applications, each counterweight slot can be filled with counterweight materials of different densities, such as cast iron blocks or steel shot, according to operational needs. By flexibly adjusting the counterweight ratio of each slot, the center of gravity of the entire machine can be precisely adjusted. Attached Figure Description

[0017] Figure 1 This is a side view of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the frame of this utility model;

[0019] Figure 3 This is a structural diagram of the counterweight of this utility model.

[0020] [Explanation of Labels in the Attached Image]

[0021] 1. Frame; 11. Front fixed frame; 12. Rear fixed frame; 13. Connecting frame; 2. Counterweight; 21. Counterweight body; 22. Counterweight cover plate; 3. Crossbar; 4. Slot; 5. Plate; 6. Limiting block; 7. Slide groove; 8. First reinforcing beam; 9. Second reinforcing beam. Detailed Implementation

[0022] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] See also Figure 1-3 As shown, a rear frame is provided according to an embodiment of the first aspect of this application, comprising:

[0024] The frame 1 includes a front fixed frame 11, a rear fixed frame 12 and a connecting frame 13. The connecting frame 13 is disposed between the front fixed frame 11 and the rear fixed frame 12, and the top of the front fixed frame 11 is located below the top of the rear fixed frame 12.

[0025] The counterweight 2 is located at the rear end of the rear fixing frame 12. The counterweight 2 includes a counterweight body 21 and a counterweight cover plate 22. The counterweight body 21 has several horizontal bars 3 inside, which divide the counterweight body 21 into several counterweight slots.

[0026] Specifically, the frame 1 includes a front fixed frame 11, a rear fixed frame 12, and a connecting frame 13. The front fixed frame 11, the connecting frame 13, and the rear fixed frame 12 are welded together, and internal reinforcing ribs are added to ensure that it can stably bear the weight of the cab and ensure the stability and safety of the cab after installation.

[0027] The connecting frame 13 can be installed tilted or vertically between the front fixed frame 11 and the rear fixed frame 12, so that the top surface of the rear fixed frame 12 is above the top surface of the front fixed frame 11, forming a stepped structure with a lower front and a higher rear, which greatly reduces the installation height of the cab and meets the passage requirements of the low-cab truck in low spaces.

[0028] The counterweight 2 is located at the rear end of the rear fixed frame 12. The counterweight 2 consists of a counterweight body 21 and a counterweight cover plate 22. The counterweight body 21 has several crossbars 3 inside, dividing it into multiple independent counterweight slots. In practical applications, each counterweight slot can be filled with counterweight materials of different densities, such as cast iron blocks or steel shot, according to operational requirements. By flexibly adjusting the counterweight ratio of each slot, the center of gravity of the entire machine can be precisely adjusted. For example, during heavy-duty loading operations, high-density cast iron blocks can be filled in the counterweight slots near the rear fixed frame 12, while steel shot can be filled in the slots at the far end, shifting the center of gravity of the entire machine rearward, thereby increasing the anti-tipping moment and enhancing the stability of the vehicle during operation.

[0029] The counterweight cover plate 22 adopts a detachable design and is tightly connected to the counterweight body 21 by bolts, which facilitates maintenance operations and adjustment of the counterweight according to different working conditions. The surface of the counterweight cover plate 22 is designed with anti-slip texture to prevent operators from slipping when climbing or performing maintenance, ensuring personnel safety; the crossbar 3 is provided with lifting holes, which facilitates the overall lifting of the counterweight body 2 by a crane, greatly improving the convenience of frame assembly and transportation.

[0030] The rear fixing frame 12 is detachably connected to the counterweight 2.

[0031] Specifically, the counterweight 2 is detachably connected to the rear fixing frame 12, which facilitates the disassembly and replacement of the counterweight 2 and makes maintenance operations easier.

[0032] The rear fixing frame 12 has symmetrical slots 4 at its rear end. The counterweight body 21 is provided with a card plate 5 at the matching position of the slot 4. A connecting piece is provided between the card plate 5 and the rear fixing frame 12.

[0033] The card plate 5 has an L-shaped structure.

[0034] Specifically, the mounting bracket has a slot 4, and a locking plate 5 is provided at the matching position between the counterweight body 21 and the slot 4 of the rear mounting bracket 12. The locking plate 5 has an L-shaped structure. During installation, the locking plate 5 is first inserted into the slot 4 to ensure precise alignment. Then, the counterweight body 21 is lowered, and the locking plate 5 can be locked into the slot 4. Finally, the locking plate 5 is fastened to the rear mounting bracket 12 through the connector, which improves the convenience and stability of the installation of the counterweight body 21.

[0035] Limiting blocks 6 are provided on both sides of the rear frame 1, and a sliding groove 7 is provided at the matching position of the counterweight body 21 and the limiting block 6.

[0036] Specifically, since the counterweight body 21 has a concave structure, the sliding grooves 7 opened on both sides of the rear frame allow the counterweight body 21 to slide into the sliding grooves 7 after installation, thereby achieving stable support and fixation of both sides of the counterweight body 21 and improving the stability of the counterweight body 21 after installation.

[0037] The slide groove is longitudinally opened along the side of the counterweight body, which can not only ensure that the counterweight body can slide smoothly along the slide groove 7, but also effectively limit the lateral displacement of the counterweight body when the vehicle is running.

[0038] It also includes a counterweight plate, which is disposed in the counterweight groove.

[0039] Specifically, the counterweight plate and the counterweight groove are connected by a screw rod. The counterweight plate is installed above the steel or iron sand to achieve stable compression of the steel or iron sand, preventing the steel or iron sand from moving when the vehicle is bumpy, and improving the stability of the counterweight.

[0040] A first reinforcing beam 8 is provided between the rear frame bodies 1, and an mounting plate is provided on the rear frame body 1.

[0041] Specifically, the stability of the rear frame 1 connection is improved by setting the first reinforcing beam 8, and the mounting plate is used to connect and install loader components.

[0042] A second reinforcing beam 9 is provided between the connecting frames 13.

[0043] The second aspect of this application discloses a loader that includes a rear frame as described in any of the above technical solutions. Since the loader includes a rear frame, it has all the beneficial effects of the rear frame as described in any of the above technical solutions, which will not be repeated here.

[0044] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0046] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A rear frame, characterized in that, include: The frame (1) includes a front fixed frame (11), a rear fixed frame (12) and a connecting frame (13). The connecting frame (13) is disposed between the front fixed frame (11) and the rear fixed frame (12). The top of the front fixed frame (11) is located below the top of the rear fixed frame (12). The counterweight (2) is located at the rear end of the rear fixing frame (12). The counterweight (2) includes a counterweight body (21) and a counterweight cover plate (22). The counterweight body (21) has several crossbars (3) inside, which divide the counterweight body (21) into several counterweight slots.

2. The rear frame according to claim 1, characterized in that, The rear fixing frame (12) is detachably connected to the counterweight (2).

3. The rear frame according to claim 2, characterized in that, The rear fixing frame (12) has symmetrical slots (4) at its rear end. The counterweight body (21) is provided with a card plate (5) at the matching position of the slot (4). A connector is provided between the card plate (5) and the rear fixing frame (12).

4. The rear frame according to claim 3, characterized in that, The card plate (5) has an L-shaped structure.

5. The rear frame according to claim 4, characterized in that, Limiting blocks (6) are provided on both sides of the rear fixing frame (12), and a sliding groove (7) is provided at the matching position of the counterweight body (21) and the limiting block (6).

6. The rear frame according to claim 5, characterized in that, It also includes a counterweight plate, which is disposed in the counterweight groove.

7. The rear frame according to claim 6, characterized in that, A first reinforcing beam (8) is provided between the rear fixing frames (12), and an mounting plate is provided on the rear fixing frames (12).

8. The rear frame according to claim 7, characterized in that, A second reinforcing beam (9) is provided between the connecting frames (13).

9. A loader, characterized in that, The loader includes a rear frame as described in any one of claims 1 to 8.

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