Loader counterweight

Abstract

The utility model relates to the technical field of loading machine counter weights, in particular to a loading machine counter weight which comprises a fixing frame, a counter weight box is fixedly installed on the fixing frame, sand is filled in the counter weight box, a moving groove is formed in the fixing frame, a threaded rod is horizontally and rotatably installed in the moving groove, and the threaded rod is fixedly connected with the fixing frame. A driving motor is fixedly mounted at one end of the fixing frame, a threaded rod is sleeved with a moving block in a threaded mode, a mounting plate is fixedly mounted on the lower surface of the moving block, a plurality of fixing frames are mounted on the mounting plate through connecting assemblies, and balancing weights are fixedly mounted on the fixing frames. Through mutual cooperation of the driving motor, the threaded rod, the moving block, the mounting plate, the fixing frame and the balancing weight, the gravity center of the balance weight on the loader can be horizontally adjusted, the loader is prevented from tipping over and tilting backwards, the problem that the gravity center position of a traditional loader balance weight cannot be adjusted is solved, and the overall applicability and flexibility of the loader are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of loader counterweights, in particular to a loader counterweight. Background Art

[0002] Loaders are important mechanical equipment in engineering construction. They are mainly used for shoveling, loading, transporting and digging of loose materials. The counterweight of the loader has a great influence on the digging force and tipping load of the whole machine. The loader counterweight device is located at the tail of the loader, and usually controls its weight to meet the stability requirements of the whole machine.

[0003] Existing counterweights are all fixedly mounted on the loader, so that the center of gravity is fixed, making it impossible for the loader to adjust the center of gravity of the counterweight according to the upcoming working conditions, thereby failing to fully utilize the center of gravity of the counterweight, reducing the overall applicability and flexibility. Utility Model Content

[0004] The purpose of the utility model is to solve the following shortcomings in the prior art: the existing counterweights are fixedly installed on the loader, so that the center of gravity is fixed, making it impossible for the loader to adjust the position of the center of gravity of the counterweight according to the upcoming working conditions, thereby failing to fully utilize the center of gravity of the counterweight, reducing the overall applicability and flexibility, and thus a loader counterweight is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A loader counterweight, comprising a fixed frame, a counterweight box is fixedly mounted on the fixed frame, the counterweight box is filled with sand, a movable slot is opened on the fixed frame, a threaded rod is horizontally rotatably mounted in the movable slot, a driving motor is fixedly mounted at one end of the fixed frame, and one end of the threaded rod passes through the movable slot and is fixedly connected to the output shaft of the driving motor;

[0007] A moving block is threadedly sleeved on the threaded rod, a mounting plate is fixedly mounted on the lower surface of the moving block, a plurality of fixing frames are mounted on the mounting plate via a connecting assembly, and a counterweight block is fixedly mounted on each of the plurality of fixing frames.

[0008] Preferably, the connection assembly includes two connection blocks fixedly mounted on the mounting plate and two wedge blocks fixedly mounted on the fixing frame. Slots are provided on the surfaces of the two connection blocks, and the two wedge blocks are respectively inserted into the two slots.

[0009] Preferably, the wedge block surface is provided with a plurality of positioning holes, the connection block surface is provided with a plurality of threaded holes all connected with the slots, bolts are threadedly inserted in the plurality of threaded holes, and one end of the bolt passes through the threaded hole and is inserted in the positioning hole.

[0010] Preferably, the mounting plate is symmetrically provided with movable holes, and support rails are slidably inserted into two of the movable holes, and both ends of the support rails are fixedly mounted on the fixing frame.

[0011] Preferably, the upper surface of the counterweight box is fixedly connected with a sand inlet pipe, and the lower surface of the counterweight box is symmetrically fixedly connected with a sand discharge pipe, and valves are installed on both of the sand discharge pipes.

[0012] Preferably, a movable hole is opened on the side of the counterweight box, and a movable plate is slidably installed in the movable hole. A vertical rod is symmetrically fixedly installed on one end of the movable plate. The lower ends of the two vertical rods are in sliding contact with the inner bottom of the counterweight box. Two rectangular plates are horizontally fixedly installed on the two vertical rods, and multiple scraping strips are fixedly installed on the upper and lower surfaces of the rectangular plates.

[0013] In the utility model, the beneficial effects are:

[0014] Through the cooperation of the driving motor, threaded rod, moving block, mounting plate, fixed frame and counterweight block, the center of gravity of the counterweight on the loader can be adjusted horizontally to prevent the loader from tipping over and tilting backward, solving the problem that the center of gravity of the traditional loader counterweight cannot be adjusted, and improving the overall applicability and flexibility of the loader;

[0015] When filling sand and soil into the counterweight box, the sand and soil in the counterweight box can be driven to move through the cooperation of the moving plate, vertical rod, rectangular plate and scraper strip, so that the sand and soil can be evenly filled in the counterweight box, avoiding the deviation of the center of gravity of the counterweight box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front three-dimensional structure of a loader counterweight proposed by the utility model;

[0017] Figure 2 This is a bottom-up stereoscopic structural diagram of a loader counterweight proposed by the utility model;

[0018] Figure 3 It is a schematic diagram of a three-dimensional partial cross-section structure of a counterweight box in a loader counterweight proposed by the utility model;

[0019] Figure 4 for Figure 2 A magnified view of the structure in the middle.

[0020] In the figure: 1 fixed frame, 2 counterweight box, 3 threaded rod, 4 drive motor, 5 moving block, 6 mounting plate, 7 fixed frame, 8 counterweight block, 9 connecting block, 10 wedge block, 11 bolt, 12 sand inlet pipe, 13 sand discharge pipe, 14 moving plate, 15 vertical rod, 16 rectangular plate, 17 scraper strip, 18 support rail. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 4 A loader counterweight comprises a fixed frame 1, a counterweight box 2 is fixedly mounted on the fixed frame 1, the counterweight box 2 is filled with sand, a movable slot is opened on the fixed frame 1, a threaded rod 3 is horizontally rotatably mounted in the movable slot, a driving motor 4 is fixedly mounted at one end of the fixed frame 1, one end of the threaded rod 3 passes through the movable slot and is fixedly connected to the output shaft of the driving motor 4, the fixed frame 1 is fixedly mounted on the chassis of the loader, and the counterweight box 2 is located at the tail of the loader;

[0023] A moving block 5 is threadedly sleeved on the threaded rod 3, a mounting plate 6 is fixedly mounted on the lower surface of the moving block 5, a plurality of fixing frames 7 are mounted on the mounting plate 6 via a connecting assembly, and a counterweight block 8 is fixedly mounted on each of the plurality of fixing frames 7.

[0024] When it is necessary to adjust the position of the center of gravity of the counterweight according to the working conditions, start the driving motor 4 to drive the threaded rod 3 to rotate, and then drive the moving block 5 to move in the moving groove through the threaded rod 3. When the moving block 5 moves, it will drive the mounting plate 6 to move horizontally on the fixed frame 1, and then drive multiple counterweight blocks 8 to move on the fixed frame 1. The counterweight block 8 moves under the loader. When the counterweight block 8 moves away from the counterweight box 2, the center of gravity of the loader moves forward. When the counterweight block 8 moves close to the counterweight box 2, the center of gravity of the loader moves backward, so that the center of gravity of the counterweight on the loader can be adjusted to prevent the loader from tipping over and tilting backward, thereby solving the problem that the center of gravity position of the traditional loader counterweight cannot be adjusted, and improving the overall applicability and flexibility of the loader.

[0025] The connecting assembly includes two connecting blocks 9 fixedly mounted on the mounting plate 6 and two wedge blocks 10 fixedly mounted on the fixing frame 7. The surfaces of the two connecting blocks 9 are provided with slots, and the two wedge blocks 10 are respectively inserted into the two slots. The surfaces of the wedge blocks 10 are provided with a plurality of positioning holes, and the surfaces of the connecting blocks 9 are provided with a plurality of threaded holes all connected to the slots. Bolts 11 are threadedly inserted into the plurality of threaded holes, and one end of the bolt 11 passes through the threaded hole and is inserted into the positioning hole.

[0026] The installation of the counterweight 8 can be achieved by inserting the wedge block 10 into the slot. When the counterweight 8 needs to be replaced with a different counterweight, the bolt 11 can be removed from the threaded hole to release the lock on the wedge block 10, and then the wedge block 10 can be removed from the slot opened on the connecting block 9, thereby completing the disassembly of the counterweight 8.

[0027] The mounting plate 6 is symmetrically provided with movable holes, and support rails 18 are slidably inserted into the two movable holes. Both ends of the support rails 18 are fixedly mounted on the fixing frame 1. The support rails 18 support the mounting plate 6, share the force applied by the counterweight block 8 to the threaded rod 3, and prevent the threaded rod 3 from breaking due to excessive bearing force.

[0028] A sand inlet pipe 12 is fixedly connected to the upper surface of the counterweight box 2, and a sand discharge pipe 13 is symmetrically fixedly connected to the lower surface of the counterweight box 2. Valves are installed on the two sand discharge pipes 13. Sand and soil can be added to the counterweight box 2 through the sand inlet pipe 12, thereby increasing the gravity of the counterweight box 2, and the sand and soil in the counterweight box 2 can be discharged through the sand discharge pipe 13 to reduce the gravity of the counterweight box 2, thereby realizing the adjustment of the gravity of the counterweight box 2.

[0029] A moving hole is provided on the side of the counterweight box 2, and a moving plate 14 is slidably installed in the moving hole. A vertical rod 15 is symmetrically fixedly installed at one end of the moving plate 14. The lower ends of the two vertical rods 15 are in sliding contact with the inner bottom of the counterweight box 2. Two rectangular plates 16 are horizontally fixedly installed on the two vertical rods 15, and multiple scraping strips 17 are fixedly installed on the upper and lower surfaces of the rectangular plates 16.

[0030] When filling sand and soil into the counterweight box 2, the movable plate 14 is driven to move back and forth in the movable hole, and then the two vertical rods 15 drive the two rectangular plates 16 to move horizontally in the counterweight box 2. When the rectangular plates 16 move, the scraper strips 17 will drive the sand and soil in the counterweight box 2 to move horizontally, so that the sand and soil can be evenly filled in the counterweight box 2, avoiding the deviation of the center of gravity of the counterweight box 2.

[0031] In the utility model, when it is necessary to adjust the position of the center of gravity of the counterweight according to the working conditions, the driving motor 4 is started, and the moving block 5 is driven to move in the moving groove through the threaded rod 3, and then the multiple counterweight blocks 8 are driven to move on the fixed frame 1 through the mounting plate 6. When the counterweight block 8 moves away from the counterweight box 2, the center of gravity of the loader moves forward, and when the counterweight block 8 moves close to the counterweight box 2, the center of gravity of the loader moves backward, so that the center of gravity of the counterweight on the loader can be adjusted to prevent the loader from tipping over and tilting backward, thereby solving the problem that the center of gravity position of the traditional loader counterweight cannot be adjusted, and improving the overall applicability and flexibility of the loader.

[0032] In general, in view of the technical problem: the existing counterweights are fixedly installed on the loader, so that the center of gravity is fixed, so that the loader cannot adjust the position of the center of gravity of the counterweight according to the upcoming working conditions, and thus cannot make full use of the center of gravity of the counterweight, reducing the overall applicability and flexibility; adopt a technical solution: through the mutual cooperation of the driving motor 4, the threaded rod 3, the moving block 5, the mounting plate 6, the fixed frame 7 and the counterweight block 8, the center of gravity of the counterweight on the loader can be adjusted horizontally; because the implementation process of the technical solution is: when it is necessary to adjust the position of the center of gravity of the counterweight according to the working conditions When the loader is in the state of being moved, the driving motor 4 is started, and the moving block 5 is driven to move in the moving groove through the threaded rod 3, and then the multiple counterweight blocks 8 are driven to move on the fixed frame 1 through the mounting plate 6. When the counterweight block 8 moves away from the counterweight box 2, the center of gravity of the loader moves forward, and when the counterweight block 8 moves close to the counterweight box 2, the center of gravity of the loader moves backward. Therefore, the technical problem can be solved inevitably, and the technical effect achieved is: the center of gravity of the counterweight on the loader can be adjusted to prevent the loader from tipping over and tilting backward, and the problem that the center of gravity position of the counterweight of the traditional loader cannot be adjusted is solved, thereby improving the overall applicability and flexibility of the loader.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A loader counterweight, comprising a fixed frame (1), characterized in that: A counterweight box (2) is fixedly mounted on the fixed frame (1), the counterweight box (2) is filled with sand, a movable groove is provided on the fixed frame (1), a threaded rod (3) is horizontally rotatably mounted in the movable groove, a driving motor (4) is fixedly mounted on one end of the fixed frame (1), and one end of the threaded rod (3) passes through the movable groove and is fixedly connected to the output shaft of the driving motor (4); A moving block (5) is threadedly sleeved on the threaded rod (3), a mounting plate (6) is fixedly mounted on the lower surface of the moving block (5), a plurality of fixing frames (7) are mounted on the mounting plate (6) via a connecting assembly, and a counterweight block (8) is fixedly mounted on each of the plurality of fixing frames (7).

2. A loader counterweight according to claim 1, characterized in that: The connection assembly comprises two connection blocks (9) fixedly mounted on the mounting plate (6) and two wedge blocks (10) fixedly mounted on the fixing frame (7), the surfaces of the two connection blocks (9) being provided with slots, and the two wedge blocks (10) being inserted into the two slots respectively.

3. A loader counterweight according to claim 2, characterized in that: The wedge block (10) has a plurality of positioning holes on its surface, the connection block (9) has a plurality of threaded holes on its surface that are all connected to the slots, bolts (11) are threadedly inserted into the plurality of threaded holes, and one end of the bolt (11) passes through the threaded hole and is inserted into the positioning hole.

4. A loader counterweight according to claim 1, characterized in that: The mounting plate (6) is symmetrically provided with movable holes, and support rails (18) are slidably inserted into the two movable holes, and both ends of the support rails (18) are fixedly mounted on the fixing frame (1).

5. The loader counterweight according to claim 1, characterized in that: The upper surface of the counterweight box (2) is fixedly connected to a sand inlet pipe (12), and the lower surface of the counterweight box (2) is symmetrically fixedly connected to a sand discharge pipe (13), and valves are installed on both of the sand discharge pipes (13).

6. A loader counterweight according to claim 5, characterized in that: A movable hole is provided on the side of the counterweight box (2), a movable plate (14) is slidably mounted in the movable hole, a vertical rod (15) is symmetrically fixedly mounted on one end of the movable plate (14), the lower ends of the two vertical rods (15) are in sliding contact with the inner bottom of the counterweight box (2), two rectangular plates (16) are horizontally fixedly mounted on the two vertical rods (15), and a plurality of scraping strips (17) are fixedly mounted on the upper and lower surfaces of the rectangular plates (16).

Images