A cast iron counterweight for a loader

By designing a cast iron counterweight structure on the loader, adjusting the weight balance using adjusting blocks, and providing a low-position boarding platform, the balance problem of the loader in different scenarios and the inconvenience of radiator maintenance are solved, thus improving safety and convenience.

CN224300083UActive Publication Date: 2026-05-29QINGDAO LOVOL EXCAVATOR +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO LOVOL EXCAVATOR
Filing Date
2025-06-17
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Loaders are difficult to balance in different working scenarios, and the high position of the radiator makes maintenance inconvenient and safety difficult to guarantee.

Method used

A cast iron counterweight structure was designed, comprising a first counterweight, a second counterweight, an adjusting block, a boarding platform, and a maintenance platform. The balance is adjusted by adding or removing the adjusting block, and the low-positioned boarding platform facilitates radiator maintenance.

Benefits of technology

Maintaining the loader's balance in different working scenarios prevents tilting, improves safety, and simplifies the radiator maintenance process, reducing maintenance difficulty.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224300083U_ABST
    Figure CN224300083U_ABST
Patent Text Reader

Abstract

The utility model discloses a cast iron counterweight of loader belongs to loader technical field, including first counterweight, second counterweight, adjusting block, boarding platform, maintenance platform, traction pin mounting hole, hoist round steel and bolt counterbore, the both ends of first counterweight are provided with second counterweight, one side of second counterweight is equipped with adjusting hole, is provided with a plurality of adjusting blocks in adjusting hole, the upper end of first counterweight is provided with maintenance platform, the upper end of second counterweight is provided with boarding platform, a plurality of bosses are set up on boarding platform interval, can guarantee the balance of loader under different working scene, avoid the inclination of loader, and the applicability is strong, is convenient for radiator maintenance, has guaranteed security.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of loader technology, specifically relating to a cast iron counterweight for a loader. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] Loaders, as important construction machinery, are widely used in logistics, construction, and mining. Loader counterweights are commonly used in construction machinery to balance the load during operation and increase the stability of the loader. Cast iron counterweights have advantages such as high density, high strength, and small size, and are therefore widely used in construction machinery.

[0004] When loaders are excavating, they inevitably encounter sloping working environments, which can easily cause the loader to tilt. This tilting can generate forces that affect the loader's balance and thus its operation. Although current loader counterweights are designed to maintain balance, the same weight of counterweight is insufficient to maintain the loader's balance in different scenarios. This can lead to tilting issues during operation, resulting in safety problems. Furthermore, the radiators on current loaders are located high up, requiring ladders to access them for maintenance, which is inconvenient and raises safety concerns. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a cast iron counterweight for a loader, which can ensure the balance of the loader in different working scenarios, prevent the loader from tilting, has strong applicability, facilitates radiator maintenance, and ensures safety.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cast iron counterweight for a loader includes a first counterweight block, a second counterweight block, an adjusting block, a boarding platform, a maintenance platform, a towing pin mounting hole, a lifting round steel bar, and bolt countersunk holes; the second counterweight block is provided at both ends of the first counterweight block, and an adjusting hole is provided on one side of the second counterweight block, with a plurality of adjusting blocks provided in the adjusting hole; a maintenance platform is provided at the upper end of the first counterweight block, and a boarding platform is provided at the upper end of the second counterweight block, with a plurality of protrusions spaced apart on the boarding platform.

[0008] Furthermore, the first counterweight and the second counterweight are fixedly connected, while the second counterweight and the adjusting block are detachably connected.

[0009] Furthermore, the second counterweight is provided with a square groove, and a hoisting round steel bar is placed in the square groove.

[0010] Furthermore, the inner wall surfaces of the hoisting round steel and the square groove are fixedly connected.

[0011] Furthermore, there is a gap between the periphery of the hoisting round steel and the inner wall of the square groove.

[0012] Furthermore, the maintenance platform is provided with a traction pin mounting hole, and a traction pin is installed in the traction pin mounting hole.

[0013] Furthermore, the traction pin and the traction pin mounting hole are detachably connected.

[0014] Furthermore, a square hole is provided on one side of the first counterweight.

[0015] Furthermore, the square hole has countersunk bolt holes at both ends, and the countersunk bolt holes are spaced out in several places.

[0016] Furthermore, the adjustment hole is a square hole.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are:

[0018] This utility model ensures the balance of the loader in different working scenarios through the first counterweight, the second counterweight, and the adjusting block. The first and second counterweights initially stabilize the loader. When the slope is different or the working force causes the loader to tilt, the adjusting block can be added or removed before working to ensure balance and prevent the loader from tilting.

[0019] This utility model facilitates radiator maintenance through the combination of a maintenance platform and a boarding platform. When maintaining the radiator, the operator climbs onto the boarding platform, which is relatively low to the ground. The operator can then walk from the boarding platform to the maintenance platform to perform maintenance on the radiator, making maintenance more convenient and eliminating the need for ladders or lifting equipment. Furthermore, several protrusions are installed on the boarding platform to increase friction, thereby making it more stable for the operator to stand on the platform and ensuring safety. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Figure 1 This is a three-dimensional structural diagram of the cast iron counterweight of this utility model. Figure 1 ;

[0022] Figure 2 This is a three-dimensional structural diagram of the cast iron counterweight of this utility model. Figure 2;

[0023] In the diagram: 1. Boarding platform; 2. Maintenance platform; 3. Traction pin mounting hole; 4. Bolt countersunk hole; 5. Hoisting round steel; 6. Adjustment hole; 7. Square groove; 8. First counterweight; 9. Second counterweight; 10. Square hole. Detailed Implementation

[0024] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0025] When loaders are excavating, they inevitably encounter sloping working environments, which can easily cause the loader to tilt. This tilting can generate forces that affect the loader's balance and thus its operation. Although current loader counterweights are designed to maintain balance, the same weight of counterweight is insufficient to maintain the loader's balance in different scenarios. This can lead to tilting issues during operation, resulting in safety problems. Furthermore, the radiators on current loaders are located high up, requiring ladders to access them for maintenance, which is inconvenient and raises safety concerns.

[0026] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a cast iron counterweight for a loader, such as... Figure 1 As shown, it includes a first counterweight 8, a second counterweight 9, an adjusting block, a boarding platform 1, a maintenance platform 2, a traction pin mounting hole 3, a hoisting round steel 5, and a bolt countersunk hole 4; the second counterweight 9 is set at both ends of the first counterweight 8, and an adjusting hole 6 is provided on one side of the second counterweight 9, and several adjusting blocks are set in the adjusting hole 6.

[0027] The first counterweight 8, the second counterweight 9, and the adjusting block ensure the balance of the loader in different working scenarios. The first counterweight 8 and the second counterweight 9 initially stabilize the loader. When the slope is different or the working force causes the loader to tilt, the adjusting block can be added or removed before working again, so as to ensure balance and prevent the loader from tilting.

[0028] Specifically, different weights of first counterweight 8 and second counterweight 9 are set according to the standard, extended, and extra-long booms, thus adapting to these boom types. The adjustment blocks are square blocks that can be placed in the adjustment holes of the counterweight blocks, and the number inserted can be selected according to actual needs. A baffle is installed at the position of the adjustment hole, and the baffle can be bolted to the counterweight block to prevent the adjustment block from falling out.

[0029] Proper counterweight weight helps loaders maintain balance and prevent them from tipping forward when loading and unloading heavy objects. For example, during loading and unloading operations, appropriate counterweight can prevent the loader from losing balance and tipping over due to excessive weight.

[0030] Specifically, if the counterweight is too light, the loader is prone to an overly heavy front end during operation, reducing stability, especially when lifting heavy loads or driving on uneven ground, which may lead to rollover or forward tilting accidents. To address this, the number of adjusting blocks inside adjusting holes 6 can be increased, thereby increasing the overall weight of the counterweight and preventing the loader from tilting.

[0031] Specifically, this can make the rear of the loader too heavy, potentially reducing the front wheel traction and affecting the loader's steering performance and driving stability. This can lead to slippage or loss of control on wet or sloping surfaces. To address this, the number of adjusting blocks inside adjusting hole 6 can be reduced, thereby lowering the overall weight of the counterweight and preventing the loader from tilting.

[0032] The first counterweight 8 and the second counterweight 9 are fixedly connected, and the second counterweight 9 and the adjusting block are detachably connected. The adjusting hole 6 is a square hole.

[0033] To improve applicability, partitions can also be set. The adjustment hole 6 on the second counterweight 9 is a square hole. A limiting plate and a partition are set in the square hole. Several partitions are set at intervals. A limiting plate is set at the upper end of the partition. Each adjustment block is placed on the corresponding partition. The limiting plate limits the adjustment block to prevent the adjustment block from shaking during operation. The weight of the counterweight can be adjusted by adding or removing adjustment blocks.

[0034] A maintenance platform 2 is set on the upper end of the first counterweight 8, and a boarding platform 1 is set on the upper end of the second counterweight 9. Several protrusions are set on the boarding platform 1 at intervals.

[0035] Specifically, the maintenance platform 2 and the boarding platform 1 work together to facilitate the maintenance of the radiator. When maintaining the radiator, the operator climbs onto the boarding platform 1, which is relatively low to the ground. The operator can then walk from the boarding platform 1 to the maintenance platform 2 to maintain the radiator, making maintenance more convenient and eliminating the need for ladders or lifting equipment. Furthermore, several protrusions are installed on the boarding platform 1 to increase friction, thereby making it more stable for the operator to stand on the platform and ensuring safety.

[0036] The second counterweight 9 has a square groove 7, and a lifting round steel bar 5 is installed inside the square groove 7. The lifting round steel bar 5 is fixedly connected to the inner wall of the square groove 7. There is a gap between the periphery of the lifting round steel bar 5 and the inner wall of the square groove 7.

[0037] Specifically, using the lifting round steel 5 facilitates lifting; during lifting, simply attach the hook to the lifting round steel 5 to lift the counterweight.

[0038] The maintenance platform 2 is provided with a traction pin mounting hole 3, and a traction pin is installed in the traction pin mounting hole 3. The traction pin and the traction pin mounting hole 3 are detachably connected.

[0039] Specifically, a towing pin is installed in the towing mounting hole, and the towing pin is connected to the towing rope, which allows the loader to be towed. The towing pin is an important component used to connect the tractor and the loader, tightly connecting the tractor's towing device to the loader's towing seat, enabling the tractor to effectively tow the loader and ensuring that the two maintain a relatively fixed connection during operation, thus achieving power transmission.

[0040] like Figure 2 As shown, a square hole 10 is provided on one side of the first counterweight 8. Bolt countersunk holes 4 are provided at both ends of the square hole 10, with several bolt countersunk holes 4 spaced apart. The square hole 10 is used to thread a traction rope for easy dragging.

[0041] Specifically, a bolt is installed in the countersunk hole 4, and a screw hole is installed on the frame. The number of screw holes is the same as the number of countersunk holes 4. The counterweight is connected to the frame by screwing the bolt into the countersunk hole 4 and the screw hole in sequence.

[0042] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A cast iron counterweight for a loader, characterized in that, It includes a first counterweight, a second counterweight, an adjusting block, a boarding platform, a maintenance platform, a traction pin mounting hole, a hoisting round steel bar, and bolt countersunk holes; the second counterweight is provided at both ends of the first counterweight, and an adjusting hole is provided on one side of the second counterweight, with several adjusting blocks installed in the adjusting hole; a maintenance platform is provided at the upper end of the first counterweight, and a boarding platform is provided at the upper end of the second counterweight, with several protrusions spaced apart on the boarding platform.

2. The cast iron counterweight for a loader as described in claim 1, characterized in that, The first counterweight and the second counterweight are fixedly connected, and the second counterweight and the adjusting block are detachably connected.

3. The cast iron counterweight for a loader as described in claim 1, characterized in that, The second counterweight is provided with a square groove, and a hoisting round steel bar is placed in the square groove.

4. The cast iron counterweight for a loader as described in claim 3, characterized in that, The hoisting round steel and the inner wall of the square channel are fixedly connected.

5. The cast iron counterweight for a loader as described in claim 3, characterized in that, There is a gap between the periphery of the hoisting round steel and the inner wall of the square groove.

6. The cast iron counterweight for a loader as described in claim 1, characterized in that, The maintenance platform is provided with a traction pin mounting hole, and a traction pin is installed in the traction pin mounting hole.

7. The cast iron counterweight for a loader as described in claim 1, characterized in that, The traction pin and traction pin mounting hole are detachably connected.

8. The cast iron counterweight for a loader as described in claim 1, characterized in that, A square hole is provided on one side of the first counterweight.

9. The cast iron counterweight for a loader as described in claim 8, characterized in that, The square hole has countersunk bolt holes at both ends, and the countersunk bolt holes are spaced out in several places.

10. The cast iron counterweight for a loader as described in claim 1, characterized in that, The adjustment hole is a square hole.