An adjustable weight block for a wheel loader
By designing an adjustable counterweight block with adjustment, protection, and auxiliary devices, the problem of adjusting the counterweight of wheel loaders in different operating environments has been solved, improving the adaptability and practicality of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LONGZHUANG MACHINERY MANUFACTURING CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-05
AI Technical Summary
Existing wheel loaders have different requirements for their own counterweight weight in different operating environments, which is difficult to adjust effectively, resulting in low equipment adaptability and efficiency.
An adjustable counterweight block is designed, which includes an adjustment device, a protective device, and an auxiliary device. The number of counterweight blocks is controlled by an adjustment groove and a limit screw. The adjustment area is closed by a protective cover, and the auxiliary device is used for fine adjustment, thereby improving stability and adaptability.
It enables flexible adjustment of the loader's load weight, reduces interference from external debris, and improves the equipment's operating efficiency and stability in different environments.
Smart Images
Figure CN224325830U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of engineering machinery, and in particular to an adjustable counterweight for a wheel loader. Background Technology
[0002] Wheel loaders are a type of earthmoving and transportation machinery widely used in highways, railways, ports, docks, coal mines, water conservancy projects, national defense projects, and urban construction. They play an important role in reducing labor intensity, accelerating construction speed, and improving project quality. The main function of wheel loaders is to load and transport loose materials over short distances.
[0003] The existing Chinese utility model patent with application number CN201420356368.7 relates to the counterweight of a loader, including the counterweight body, a stepped structure, foot pedals and handrails, which can increase the utilization rate of the rear space of the loader.
[0004] However, wheel loaders are highly adaptable to the working environment. The weight requirements for their own counterweight vary in different working environments. Changing the counterweight according to the working environment can improve the working efficiency of the loader and reduce unnecessary loads on the equipment. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides an adjustable counterweight for wheel loaders. It adjusts the actual load weight of the loader through an adjustment device, encloses the adjustment device area through a protective device to reduce the entry of external debris during operation that may affect the normal installation and removal of the adjustment device, and fine-tunes the main counterweight mass through an auxiliary device, thereby improving the adaptability and practicality of the device.
[0006] This utility model discloses an adjustable counterweight for a wheel loader, comprising an adjustment device, a protective device, and an auxiliary device. The protective device is installed on the adjustment device, and the auxiliary device is installed on the adjustment device. The adjustment device adjusts the actual load weight of the loader, the protective device encloses the area of the adjustment device to reduce the entry of external debris during operation that could affect the normal installation and removal of the adjustment device, and the auxiliary device fine-tunes the main counterweight mass, thereby improving the adaptability and practicality of the device.
[0007] Preferably, the adjustment device includes a counterweight main frame, an adjustment groove, a limit screw, counterweight blocks, and anti-slip grooves. The left and right sides of the counterweight main frame each have an adjustment groove. Two sets of limit screws are vertically installed within the adjustment grooves. Multiple counterweight blocks can be placed into the adjustment grooves, and each counterweight block has a circular through hole corresponding to the position of the limit screw. Multiple sets of anti-slip grooves are provided on the upper and lower end faces of the counterweight blocks. The adjustment grooves provide space for the installation of multiple sets of counterweight blocks. By installing different numbers of counterweight blocks, the mass of the main counterweight frame can be controlled, thus adapting to different working environments and methods for the wheel loader. The anti-slip grooves on the upper and lower end faces of the counterweight blocks increase the friction between adjacent counterweight blocks, reducing noise generated by vibration and friction during equipment operation, and improving the practicality of the device.
[0008] Preferably, the protective device includes a first rotating shaft, an L-shaped protective cover, fastening bolts, circular holes, and nuts. The first rotating shaft is installed on the top of the inner side of the adjusting groove. One end of the L-shaped protective cover is fitted onto the first rotating shaft, covering the outside of the adjusting groove. The lower part of the L-shaped protective cover is fixedly connected to the outer side of the counterweight main frame by fastening bolts. A set of circular holes is provided on the upper surface of the L-shaped protective cover corresponding to the positions of the two sets of limit screws, and nuts are installed on the limit screws. By rotating the nuts, the counterweight blocks are tightened, increasing the maximum static friction between the counterweight blocks and increasing the stability between the counterweight blocks during equipment movement. The L-shaped protective cover covers the adjusting groove, providing protection and reducing the entry of debris from the external environment into the adjusting groove. The lower part of the L-shaped protective cover is fixed by multiple sets of fastening bolts. The first rotating shaft, in conjunction with the L-shaped protective cover, enables the L-shaped protective cover to be flipped, facilitating the installation and removal of the counterweight blocks. The circular holes allow operators to observe the tightness of the nuts, improving the practicality of the device.
[0009] Preferably, it also includes a handle, with a handle provided at the bottom of the L-shaped protective cover; the handle makes it easy for maintenance personnel to lift the L-shaped protective cover, improving the practicality of the device.
[0010] Preferably, the auxiliary device includes a fine-tuning chamber, a discharge hopper, a discharge bolt column, and a discharge groove. A set of fine-tuning chambers is provided on the left and right sides of the counterweight main frame, with each set located in front of a set of adjustment slots. A discharge hopper is located at the bottom of each fine-tuning chamber, with its lower part connected to the lower end face of the counterweight main frame and provided with a threaded hole. The discharge bolt column is connected to the threaded hole at the bottom of the discharge hopper, and a discharge groove is provided on the upper side of the discharge bolt column. The fine-tuning chamber carries the metal counterweight sand, facilitating maintenance personnel to balance the left and right mass of the counterweight main frame. This is suitable for mass leveling after subsequent modifications to the counterweight main frame. By rotating the discharge bolt column, the metal counterweight sand in the fine-tuning chamber falls out through the gap between the discharge groove and the threaded hole, thereby fine-tuning the mass in the fine-tuning chamber and improving the practicality of the device.
[0011] Preferably, the device also includes a second rotating shaft, a feeding plate, and rubber strips. The feeding plate is mounted on the upper side of the fine-tuning chamber via the second rotating shaft. A rubber strip is provided on the upper inner side of the feeding plate. A strip-shaped groove is provided on the side of the counterweight main frame corresponding to the position of the rubber strip. By rotating the feeding plate, maintenance personnel can easily add metal counterweight sand into the fine-tuning chamber. By inserting the rubber strip into the strip-shaped groove on the counterweight main frame, the position of the feeding plate is fixed, keeping the feeding plate vertical and reducing the entry of debris from the external environment into the fine-tuning chamber, thus improving the practicality of the device.
[0012] Preferably, it also includes side baffles, with a set of side baffles provided on the left and right sides of the inner side of the feeding plate; the side baffles provided on the inner side of the feeding plate reduce the spillage of metal counterweight sand from the side of the feeding plate during the addition process, thus improving the practicality of the device.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the actual load weight of the loader is adjusted by the adjustment device, the area of the adjustment device is sealed by the protective device to reduce the entry of external debris during operation that affects the normal installation and disassembly of the adjustment device, and the main counterweight mass is finely adjusted by the auxiliary device, thereby improving the adaptability and practicality of the device. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;
[0015] Figure 2 This is a first exploded structural diagram of the present invention;
[0016] Figure 3 This is a schematic diagram of the second explosive structure of this utility model;
[0017] Figure 4 This is a cross-sectional structural diagram of the present invention;
[0018] The following are marked in the attached diagram: 1. Counterweight main frame; 2. Adjustment groove; 3. Limiting screw; 4. Counterweight block; 5. Anti-slip texture; 6. First rotating shaft; 7. L-shaped protective cover; 8. Fastening bolt; 9. Circular hole; 10. Nut; 11. Hand buckle; 12. Fine adjustment chamber; 13. Discharge hopper; 14. Discharge bolt column; 15. Discharge groove; 16. Second rotating shaft; 17. Feeding plate; 18. Rubber strip; 19. Side baffle. Detailed Implementation
[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1
[0020] Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the protective device is installed on the adjusting device, and the auxiliary device is installed on the adjusting device;
[0021] Firstly, the adjustment groove 2 provides space for the installation of multiple sets of counterweights 4. By installing different numbers of counterweights 4, the mass of the main body of the counterweight frame 1 can be controlled, thereby adapting to different working environments and methods for the wheel loader. By rotating the nut 10 to tighten the counterweights 4, the maximum static friction between the counterweights 4 is increased, thereby increasing the stability between the counterweights 4 during equipment movement. The adjustment groove 2 is covered by the L-shaped protective cover 7 to provide protection and reduce the entry of debris from the external environment into the adjustment groove 2. The metal counterweight sand is supported by the fine-tuning chamber 12, which makes it easy for maintenance personnel to balance and adjust the mass of the main body of the counterweight frame 1 from left to right.
[0022] The adjustment device includes a counterweight main frame 1, an adjustment groove 2, a limiting screw 3, a counterweight block 4, and anti-slip texture 5. The left and right sides of the counterweight main frame 1 are each provided with an adjustment groove 2. Two sets of limiting screws 3 are vertically installed in the adjustment groove 2. Multiple sets of counterweight blocks 4 can be placed into the adjustment groove 2, and the counterweight blocks 4 themselves are provided with circular through holes corresponding to the positions of the limiting screws 3. Multiple sets of anti-slip texture 5 are provided on the upper and lower end faces of the counterweight blocks 4 respectively.
[0023] The protective device includes a first rotating shaft 6, an L-shaped protective cover 7, a fastening bolt 8, a circular hole 9, and a nut 10. The first rotating shaft 6 is installed on the top of the inner side of the adjusting groove 2. One end of the L-shaped protective cover 7 is fitted onto the first rotating shaft 6. The L-shaped protective cover 7 covers the outer side of the adjusting groove 2. The lower part of the L-shaped protective cover 7 is fixedly connected to the outer side of the counterweight main frame 1 by the fastening bolt 8. A set of circular holes 9 are respectively provided on the upper end face of the L-shaped protective cover 7 at the positions of the two sets of limit screws 3. Nuts 10 are installed on the limit screws 3.
[0024] It also includes a handle 11, with a handle 11 provided at the bottom of the L-shaped protective cover 7;
[0025] The auxiliary device includes a fine-tuning chamber 12, a discharge hopper 13, a discharge bolt column 14, and a discharge groove 15. A set of fine-tuning chambers 12 is provided on the left and right sides of the counterweight main frame 1. The two sets of fine-tuning chambers 12 are located in front of the two sets of adjustment grooves 2. A discharge hopper 13 is provided at the bottom of the fine-tuning chamber 12. The lower part of the discharge hopper 13 is connected to the lower end face of the counterweight main frame 1 and is provided with a threaded hole. The discharge bolt column 14 is connected to the threaded hole at the lower part of the discharge hopper 13, and a discharge groove 15 is provided on the upper side of the discharge bolt column 14.
[0026] It also includes a second rotating shaft 16, a feeding plate 17 and a rubber strip 18. The feeding plate 17 is installed on the upper side of the fine-tuning chamber 12 via the second rotating shaft 16. A rubber strip 18 is provided on the upper inner side of the feeding plate 17. A strip groove is provided on the side of the counterweight main frame 1 corresponding to the position of the rubber strip 18.
[0027] It also includes side baffles 19. A set of side baffles 19 is provided on the left and right sides of the inner side of the loading plate 17. The actual weight of the load of the loader is adjusted by the adjustment device. The adjustment device area is closed by the protective device to reduce the entry of external debris during operation and reduce the impact on the normal installation and disassembly of the adjustment device. The main counterweight mass is finely adjusted by the auxiliary device, which improves the adaptability and practicality of the device.
[0028] like Figures 1 to 4 As shown, this utility model discloses an adjustable counterweight for a wheel loader. During operation, the adjustment groove 2 provides space for the installation of multiple sets of counterweights 4. By installing different numbers of counterweights 4, the mass of the main body of the counterweight frame 1 is controlled, thus adapting the wheel loader to different operating environments and methods. The rotating nut 10 tightens the counterweights 4, increasing the maximum static friction between them and enhancing stability during equipment movement. An L-shaped protective cover 7 covers the adjustment groove 2, providing protection and reducing the entry of external debris into the groove. The fine-tuning chamber 12 supports the metal counterweight sand, facilitating balance adjustment of the main body of the counterweight frame 1 by maintenance personnel.
[0029] The counterweight main frame 1 of the adjustable counterweight block of the wheel loader of this utility model is purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An adjustable counterweight for a wheel loader; characterized in that, It includes an adjustment device, a protective device, and an auxiliary device. The protective device is installed on the adjustment device, and the auxiliary device is installed on the adjustment device. The auxiliary device includes a fine adjustment chamber (12), a discharge hopper (13), a discharge bolt column (14), and a discharge groove (15). A set of fine adjustment chambers (12) is provided on the left and right sides of the counterweight main frame (1). The two sets of fine adjustment chambers (12) are located on the front side of the two sets of adjustment grooves (2). A discharge hopper (13) is provided at the bottom of the fine adjustment chamber (12). The lower part of the discharge hopper (13) is connected to the lower end face of the counterweight main frame (1) and is provided with a threaded hole. The discharge bolt column (14) is connected to the threaded hole at the bottom of the discharge hopper (13), and a discharge groove (15) is provided on the upper side of the discharge bolt column (14).
2. The adjustable counterweight for a wheel loader as described in claim 1, characterized in that, The adjustment device includes a counterweight main frame (1), an adjustment groove (2), a limiting screw (3), a counterweight block (4), and anti-slip texture (5). The left and right sides of the counterweight main frame (1) are provided with a set of adjustment grooves (2). Two sets of limiting screws (3) are vertically installed in the adjustment grooves (2). Multiple sets of counterweight blocks (4) can be placed into the adjustment grooves (2), and the counterweight blocks (4) themselves are provided with circular through holes corresponding to the positions of the limiting screws (3). Multiple sets of anti-slip texture (5) are provided on the upper and lower end faces of the counterweight blocks (4).
3. The adjustable counterweight for a wheel loader as described in claim 2, characterized in that, The protective device includes a first rotating shaft (6), an L-shaped protective cover (7), a fastening bolt (8), a circular hole (9), and a nut (10). The first rotating shaft (6) is installed on the top of the inner side of the adjusting groove (2). One end of the L-shaped protective cover (7) is fitted onto the first rotating shaft (6). The L-shaped protective cover (7) covers the outside of the adjusting groove (2). The lower part of the L-shaped protective cover (7) is fixedly connected to the outer side of the counterweight main frame (1) by the fastening bolt (8). A set of circular holes (9) are respectively provided on the upper surface of the L-shaped protective cover (7) at the positions corresponding to the two sets of limit screws (3). Nuts (10) are installed on the limit screws (3).
4. The adjustable counterweight for a wheel loader as described in claim 3, characterized in that, It also includes a hand catch (11), and the lower part of the L-shaped protective cover (7) is provided with a hand catch (11).
5. The adjustable counterweight for a wheel loader as described in claim 4, characterized in that, It also includes a second rotating shaft (16), a feeding plate (17) and a rubber strip (18). The feeding plate (17) is installed on the upper side of the fine adjustment chamber (12) through the second rotating shaft (16). A rubber strip (18) is provided on the upper inner side of the feeding plate (17). A strip groove is provided on the side of the counterweight main frame (1) corresponding to the position of the rubber strip (18).
6. The adjustable counterweight for a wheel loader as described in claim 5, characterized in that, It also includes side baffles (19), and a set of side baffles (19) is provided on the left and right sides of the inner side of the feeding plate (17).