Assembling device for counter weight of loading machine
By using a loader counterweight assembly device, which combines sliding rods, insert plates, and springs, the problem of counterweight swaying caused by loose bolts is solved, achieving stable fixing of the counterweight, reducing the risk of loader tipping over, and improving the stability and ease of operation of the loader.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI LIUZHOU YUTIAN MACHINERY
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-24
AI Technical Summary
The existing counterweight device for loaders is prone to loosening when fixed with bolts, causing the counterweight to wobble and increasing the risk of the loader tipping over.
The counterweight assembly device for loaders utilizes a combination structure of sliding rods, insert plates, bending plates, and springs. The spring force is used to stabilize and fix the counterweight, and the inclined groove is used for limiting the movement, ensuring the stability of the counterweight in the vertical and horizontal directions.
It improves the stability of the counterweight, reduces the probability of the loader tipping over, simplifies the installation and disassembly process, and enhances the overall robustness and aesthetics of the loader.
Smart Images

Figure CN224161138U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of loader counterweight technology, and in particular to an assembly device for loader counterweight. Background Technology
[0002] A loader is a type of earthmoving machinery widely used in construction projects such as highways, railways, buildings, hydropower, ports, and mines. The loader counterweight is a device installed on the loader's base to adjust the weight of the machine and prevent the loader from tipping over during operation.
[0003] For example, a new type of integrated counterweight device for loaders, with announcement number "CN213268069U," directly fixes the counterweight to the battery box before assembling it onto the rear frame, achieving a neat and perfect integration. This saves labor time and facilitates installation, while also enhancing the overall robustness and aesthetics of the loader, effectively avoiding complex assembly procedures involving repeated adjustments. The integrated counterweight features footrests and handrails for easy access during maintenance. The taillight cover is mounted on the battery box cover of the integrated counterweight, protecting the taillight body and ensuring greater stability and security. The outer edge of the battery box cover on the integrated counterweight covers the outer weld seams, providing excellent waterproofing. However, in this new integrated counterweight device, the battery box and counterweight are fixed to the rear frame with multiple bolts. During loader operation, these bolts can easily loosen, causing the counterweight to wobble and potentially leading to the loader tipping over. Summary of the Invention
[0004] This invention aims to solve the problems existing in the prior art by providing a counterweight assembly device for loaders, which can make the counterweight more stable and reduce the probability of the loader overturning.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: This loader counterweight assembly device includes a loader base, a fixing mechanism is provided on the left side of the loader base, the fixing mechanism includes a slide rod, the outer wall of the slide rod is slidably connected to a fixing block, an insert plate is fixedly connected to the end of the slide rod, the insert plate is slidably connected to a bent plate through a first through hole, the first through hole is machined on the bent plate, the right side of the fixing block is fixedly connected to the loader base, a spring is provided below the fixing block, and the two ends of the spring are fixedly connected to the slide rod and the fixing block respectively.
[0006] To further improve the design, the outer wall of the curved plate is slidably connected to two mounting blocks through a second through hole.
[0007] Further improvements were made, with the second through hole machined onto the mounting block.
[0008] To further improve the design, the outer walls of the mounting blocks are all slidably connected to the loader base.
[0009] To further improve the design, the upper end of each mounting block is fixedly connected to a counterweight block.
[0010] To further improve the design, the loader base is machined with multiple inclined grooves.
[0011] The beneficial effects of this utility model are as follows: With the cooperation of the loader base and the fixing mechanism, the operator pulls the sliding rod upwards, causing the sliding rod to move upwards and simultaneously compressing the spring. Then, the operator inserts the bent plate into the mounting block along the two second through holes. When the end of the bent plate is in contact with the mounting block, the operator releases the sliding rod, and using the spring force, the inserted plate enters the bent plate along the first through hole. The inclined grooves machined on the bent plate and the base can limit the counterweight in the vertical and horizontal directions, making the counterweight more stable. Compared to using bolts for fixing, the counterweight is more stable, reducing the probability of the loader tipping over during use. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 for Figure 1 A front sectional view;
[0014] Figure 3 This is a three-dimensional schematic diagram of the curved plate;
[0015] Figure 4 This is a schematic diagram showing the connection relationship between the counterweight, the mounting block, and the second through hole.
[0016] Figure 5 A three-dimensional schematic diagram of the sliding rod and the insert plate;
[0017] Figure 6 for Figure 2 A magnified view of part A in the diagram.
[0018] Explanation of reference numerals in the attached drawings: 1. Loader base; 2. Fixing mechanism; 201. Slide bar; 202. Fixing block; 203. Spring; 204. Insert plate; 205. Bend plate; 206. Second through hole; 207. First through hole; 3. Mounting block; 4. Counterweight block; 5. Inclined groove. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings:
[0020] See attached document Figure 1-6In this embodiment, a loader counterweight assembly device includes a loader base 1. A fixing mechanism 2 is provided on the left side of the loader base 1. The fixing mechanism 2 includes a slide rod 201. The outer wall of the slide rod 201 is slidably connected to a fixing block 202. An insert plate 204 is fixedly connected to the end of the slide rod 201. The insert plate 204 is slidably connected to a bent plate 205 through a first through hole 207. The first through hole 207 is machined on the bent plate 205. The right side of the fixing block 202 is fixedly connected to the loader base 1. A spring 203 is provided below the fixing block 202. The spring force coefficient of the spring 203 is selected according to actual needs to meet the working requirements. The two ends of the spring 203 are fixedly connected to the slide rod 201 and the fixing block 202, respectively.
[0021] The outer wall of the curved plate 205 is slidably connected to two mounting blocks 3 through the second through hole 206. The second through hole 206 is machined on the mounting block 3. The outer wall of the mounting block 3 is slidably connected to the loader base 1. The upper end of the mounting block 3 is fixedly connected to the counterweight block 4. Multiple inclined grooves 5 are machined on the loader base 1.
[0022] Working principle:
[0023] When using the loader counterweight assembly device:
[0024] When it is necessary to install the counterweight 4, the operator first uses a crane to move the counterweight 4 to the top of the loader base 1 (the loader base 1 is integrally formed with the loader). Then, the operator aligns the mounting block 3 below the counterweight 4 with the inclined groove 5. The operator controls the crane to move the counterweight 4 downward, so that the mounting block 3 passes through the inclined groove 5 and through the loader base 1. When the bottom of the counterweight 4 is in contact with the loader base 1, the operator pulls the slide rod 201 upward. The slide rod 201 moves upward, causing the insert plate 204 to move upward, while compressing the spring 203. Then, the operator inserts the bent plate 205 into the mounting block 3 along the two second through holes 206. When the end of the bent plate 205 is in contact with the mounting block 3, the operator releases the slide rod 201. Using the elastic force of the spring 203, the insert plate 204 enters the bent plate 205 along the first through hole 207, thus completing the assembly of the loader counterweight.
[0025] When it is necessary to disassemble the counterweight 4, the operator fixes the hoisting rope on the crane to both sides of the counterweight 4, and then pulls the slide bar 201 upward. When the insert plate 204 moves out of the first through hole 207, the operator pulls the bent plate 205 out of the mounting block 3, and then releases the slide bar 201. Then the operator uses the crane to move the counterweight 4 upward. When the mounting block 3 moves out of the loader base 1, the disassembly of the counterweight 4 is completed. In order to achieve the purpose of limiting the counterweight 4 in the vertical and horizontal directions through the bent plate 205 and the inclined groove 5 processed on the base 1 during the assembly and disassembly of the counterweight 4, the counterweight 4 is more stable. Compared with the use of bolts for fixing, the counterweight 4 is more stable and reduces the probability of the loader overturning during use.
[0026] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.
Claims
1. A counterweight assembly device for a loader, comprising a loader base (1), characterized in that: The loader base (1) is provided with a fixing mechanism (2) on the left side. The fixing mechanism (2) includes a slide rod (201). The outer wall of the slide rod (201) is slidably connected to the fixing block (202). The end of the slide rod (201) is fixedly connected to a plate (204). The plate (204) is slidably connected to the bending plate (205) through a first through hole (207). The first through hole (207) is machined on the bending plate (205). The right side of the fixing block (202) is fixedly connected to the loader base (1). A spring (203) is provided below the fixing block (202). The two ends of the spring (203) are fixedly connected to the slide rod (201) and the fixing block (202) respectively.
2. The loader counterweight splicing apparatus of claim 1, wherein: The outer wall of the bent plate (205) is slidably connected to two mounting blocks (3) through a second through hole (206).
3. The loader counterweight splicing apparatus of claim 2, wherein: The second through hole (206) is machined on the mounting block (3).
4. The loader counterweight splicing apparatus of claim 3, wherein: The outer wall of the mounting block (3) is slidably connected to the machine base (1).
5. The loader counterweight splicing apparatus of claim 3, wherein: The upper end of each mounting block (3) is fixedly connected to the counterweight block (4).
6. The loader counterweight splicing apparatus of claim 1, wherein: The loader base (1) is machined with multiple inclined grooves (5).
Citation Information
Patent Citations
Novel integral counterweight device of loading machine
CN213268069U