Counterweight structure for electric loader

Abstract

The utility model relates to the technical field of electric loaders, in particular to a counterweight structure for an electric loader. A second balancing weight is movably arranged in a weight box, a mounting groove is formed in the outer surface, close to a port, of the second balancing weight, a fan-shaped groove is formed in the inner wall of the mounting groove, a mounting groove is formed in the outer surface, close to the end, of a first balancing weight, a rotating block is movably arranged on the inner wall of the mounting groove, and a fan-shaped block is fixed to the outer surface of the rotating block. The loading machine has the beneficial effects that when the balance weight range of the loading machine needs to be increased, the first balance weight block and the second balance weight block in the balance weight box can be rotated out of the storage groove, so that the first balance weight block and the second balance weight block are located behind the balance weight box, according to the lever principle, the two sets of balance weight blocks are located at the rear positions, and therefore the pulling force on a mechanical arm of the loading machine is increased; according to the structure, a balancing weight does not need to be additionally arranged on the loading machine, operation is convenient, and therefore convenience is achieved when the loading machine widens the balance weight range.

Description

Technical Field

[0001] The utility model relates to the technical field of electric loaders, in particular to a counterweight structure for electric loaders. Background Art

[0002] An electric loader is a type of loading machinery that uses electricity as its power. Its principle is based on high-efficiency electric motors and electronic control technology.

[0003] The Chinese utility model with publication number CN216616035U discloses a counterweight for a loader and an electric loader. The counterweight for a loader and the electric loader of the device realize the use of the weight of the power battery pack as the balance weight of the loader. For the loader, the counterweight weight is reduced while the balancing effect is the same, saving costs.

[0004] However, when the electric loader is loading heavier objects and needs to increase the counterweight range, it is very inconvenient to directly add counterweight blocks to the loader, and more manpower and material resources are required to install the counterweight blocks, which is inefficient. Utility Model Content

[0005] The purpose of the present utility model is to provide a counterweight structure for an electric loader to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a counterweight structure for an electric loader, the counterweight structure for an electric loader comprising:

[0007] A counterweight box, wherein a second counterweight block is movably provided inside the counterweight box, a mounting groove is provided on the outer surface of the second counterweight block near the port, and a fan-shaped groove is provided on the inner wall of the mounting groove;

[0008] The first counterweight block is provided with a mounting groove on the outer surface of the end portion, a rotating block is movably provided on the inner wall of the mounting groove, and a fan-shaped block is fixed on the outer surface of the rotating block.

[0009] Preferably, storage slots are provided inside the counterweight box, and two groups of storage slots are provided and are symmetrically distributed. The two groups of storage slots are respectively movably provided with a first counterweight block and a second counterweight block.

[0010] Preferably, a rotating shaft is fixed to the inner wall of the storage tank, and positioning holes are opened on the outer surfaces of the end portions of the first counterweight block and the second counterweight block, and the positioning holes correspond to the rotating shaft and are clamped to form a movably connected state.

[0011] Preferably, the mounting groove is opened on the outer surface of the connection between the ends of the first counterweight block and the second counterweight block, the area of ​​the mounting groove opened on the surface of the first counterweight block is larger than the mounting groove opened on the surface of the second counterweight block, and the two groups of mounting grooves are full circles.

[0012] Preferably, a connecting groove is provided on the inner side surface of the installation groove on the surface of the second counterweight block, a fan-shaped groove is provided on the inner side surface of the connection groove, and a through hole is provided on the bottom surface of the inner wall of the installation groove on the surface of the first counterweight block.

[0013] Preferably, a guide rod is movably provided on the inner wall of the through hole, the rotating block is fixed to the end of the guide rod, a connecting block is fixed on the outer surface of the rotating block, a fan-shaped block is fixed on the outer surface of the connecting block, and a first tooth groove and a second tooth groove are opened on the outer surface of the rotating block.

[0014] Preferably, an inner groove is provided on the inner wall side surface of the installation groove opened on the surface of the first counterweight block, a notch is provided at the end of the inner groove, a spring is provided on the inner wall of the inner groove, a baffle is provided at the end of the spring, and the baffle is located in the inner groove.

[0015] Preferably, a telescopic block is fixed on the surface of the baffle, a tooth block is fixed on the end of the telescopic block, and the tooth block corresponds to the first tooth groove and the second tooth groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] When the loader needs to increase its counterweight range, the first counterweight block and the second counterweight block in the counterweight box can be rotated out of the storage slot so that the first counterweight block and the second counterweight block are located at the rear of the counterweight box. According to the principle of leverage, the two sets of counterweight blocks are located at a further rear position, thereby increasing the pulling force on the loader's mechanical arm. This structure does not require additional counterweight blocks on the loader, facilitates operation, and thus realizes the convenience of the loader when increasing the counterweight range. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the counterweight box structure of the utility model;

[0020] Figure 3 This is an exploded perspective diagram of the counterweight structure of the utility model;

[0021] Figure 4 This is a cutaway exploded perspective diagram of the first counterweight assembly structure of the present invention;

[0022] Figure 5 This is a three-dimensional schematic diagram of the structure of the rotating block assembly of the utility model;

[0023] Figure 6 This is a cutaway perspective schematic diagram of the second counterweight structure of the present invention.

[0024] In the figure: 1. counterweight box; 2. first counterweight block; 3. second counterweight block; 4. storage slot; 5. rotating shaft; 6. positioning hole; 7. rotating block; 8. guide rod; 9. telescopic block; 10. spring; 11. baffle; 12. inner groove; 13. notch; 14. mounting groove; 15. through hole; 16. tooth block; 17. first tooth groove; 18. connecting block; 19. fan-shaped block; 20. second tooth groove; 21. fan-shaped groove; 22. connecting groove. DETAILED DESCRIPTION

[0025] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1: Please refer to Figures 1 to 6 The utility model provides a technical solution: a counterweight structure for an electric loader, in which a second counterweight block 3 is movably provided inside the counterweight box 1, and the first counterweight block 2 and the second counterweight block 3 are located behind the counterweight box 1. According to the principle of leverage, the two sets of counterweight blocks are located at a more rearward position, thereby increasing the pulling force on the loader's mechanical arm. This structure does not require additional counterweight blocks on the loader, and is convenient for operation. The second counterweight block 3 is provided with a mounting groove 14 on the outer surface of the port, and a fan-shaped groove 21 is provided on the inner wall of the mounting groove 14.

[0027] The first counterweight 2 is provided with a mounting groove 14 on the outer surface of the end portion, and a rotating block 7 is movably provided on the inner wall of the mounting groove 14. A fan-shaped block 19 is fixed on the outer surface of the rotating block 7. When the rotating block 7 drives the fan-shaped block 19 to be completely stuck into the fan-shaped groove 21, the rotation of the rotating block 7 is stopped. At this time, under the restriction of the fan-shaped block 19 and the fan-shaped groove 21, the first counterweight 2 and the second counterweight 3 will not separate.

[0028] On the basis of Example 1, in order to achieve the convenience of the loader when increasing the counterweight range, storage slots 4 are opened inside the counterweight box 1. There are two groups of storage slots 4, which are symmetrically distributed. The two groups of storage slots 4 are respectively movably provided with the first counterweight block 2 and the second counterweight block 3.

[0029] A rotating shaft 5 is fixed to the inner wall of the storage slot 4, and a positioning hole 6 is opened on the outer surface of the end of the first counterweight block 2 and the second counterweight block 3. The positioning hole 6 corresponds to the rotating shaft 5 and is clamped, forming a movably connected connection. The two groups of counterweight blocks are fixedly connected, and both groups of counterweight blocks are connected to the rotating shaft 5, so the two groups of rotating shafts 5 play a supporting role for the two groups of counterweight blocks.

[0030] The mounting groove 14 is opened on the outer surface of the connection between the ends of the first counterweight block 2 and the second counterweight block 3. The area of ​​the mounting groove 14 opened on the surface of the first counterweight block 2 is larger than the mounting groove 14 opened on the surface of the second counterweight block 3. The two groups of mounting grooves 14 are full circles, so the rotating block 7 can rotate on the first counterweight block 2 and the second counterweight block 3 at the same time.

[0031] The second counterweight block 3 has a connecting groove 22 on its inner wall, and a fan-shaped groove 21 on its inner wall. The first counterweight block 2 has a through hole 15 on its inner bottom.

[0032] A guide rod 8 is movably provided on the inner wall of the through hole 15, and the rotating block 7 is fixed to the end of the guide rod 8. A connecting block 18 is fixed to the outer surface of the rotating block 7, and a fan-shaped block 19 is fixed to the outer surface of the connecting block 18. The outer surface of the rotating block 7 is provided with a first tooth groove 17 and a second tooth groove 20.

[0033] An inner groove 12 is provided on the inner wall side surface of the mounting groove 14 opened on the surface of the first counterweight block 2, and a notch 13 is provided at the end of the inner groove 12. A spring 10 is provided on the inner wall of the inner groove 12, and a baffle 11 is provided at the end of the spring 10. The baffle 11 is located in the inner groove 12. Due to the elasticity of the spring 10, the spring 10 will support the baffle 11 and drive the telescopic block 9 to move toward the axis of the rotating block 7, so that the tooth block 16 is locked with the second tooth groove 20.

[0034] A telescopic block 9 is fixed on the surface of the baffle 11, and a tooth block 16 is fixed to the end of the telescopic block 9. The tooth block 16 corresponds to the first tooth groove 17 and the second tooth groove 20. The tooth block 16 is clamped with the tooth groove. Under the restriction of the tooth block 16, the rotating block 7 cannot rotate.

[0035] The specific solution is as follows: when the loader needs to increase its counterweight range, the first counterweight block 2 and the second counterweight block 3 in the counterweight box 1 can be rotated out of the storage slot 4, so that the first counterweight block 2 and the second counterweight block 3 are located behind the counterweight box 1. According to the principle of leverage, the two sets of counterweight blocks are in a more backward position, thereby increasing the pulling force on the loader's mechanical arm. This structure does not require additional counterweight blocks on the loader, which is convenient for operation, thereby realizing the convenience of the loader when increasing the counterweight range; and in order to provide supporting force when the first counterweight block 2 and the second counterweight block 3 are rotated to the rear of the counterweight box 1, when the end faces of the first counterweight block 2 and the second counterweight block 3 are opposite to each other, the telescopic block 9 is pulled so that the tooth block 16 is no longer stuck with the first tooth groove 17. At this time, the rotating block 7 loses its restriction and can be installed in the installation groove 14 During the rotation, when the rotating block 7 drives the sector block 19 to be completely stuck in the sector groove 21, the rotating block 7 stops rotating. At this time, under the restriction of the sector block 19 and the sector groove 21, the first counterweight 2 and the second counterweight 3 will not separate, and the telescopic block 9 will no longer be pulled. Due to the elasticity of the spring 10, the spring 10 will support the baffle 11 and drive the telescopic block 9 to move toward the axial direction of the rotating block 7, so that the tooth block 16 is stuck with the second tooth groove 20. Under the restriction of the tooth block 16, the rotating block 7 cannot rotate, ensuring the stability of the connection between the first counterweight 2 and the second counterweight 3, so that the first counterweight 2 and the second counterweight 3 are fixedly connected. At this time, the two groups of counterweights are fixedly connected, and the two groups of counterweights are connected to the rotating shaft 5, so the two groups of rotating shafts 5 play a supporting role for the two groups of counterweights.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A counterweight structure for an electric loader, characterized in that: The counterweight structure for an electric loader comprises: A counterweight box (1), wherein a second counterweight block (3) is movably provided inside the counterweight box (1), a mounting groove (14) is provided on the outer surface of the second counterweight block (3) near the port, and a fan-shaped groove (21) is provided on the inner wall of the mounting groove (14); A first counterweight block (2) is provided with a mounting groove (14) on the outer surface of the end portion of the first counterweight block (2); a rotating block (7) is movably provided on the inner wall of the mounting groove (14); and a sector block (19) is fixed on the outer surface of the rotating block (7).

2. The counterweight structure for an electric loader according to claim 1, characterized in that: The counterweight box (1) is provided with storage slots (4) therein, and the storage slots (4) are provided in two groups and are symmetrically distributed. The two groups of storage slots (4) are respectively provided with a first counterweight block (2) and a second counterweight block (3) movably therein.

3. The counterweight structure for an electric loader according to claim 2, characterized in that: A rotating shaft (5) is fixed on the inner wall of the storage slot (4); positioning holes (6) are provided on the outer surfaces of the first counterweight block (2) and the second counterweight block (3); and the positioning holes (6) are movably engaged with the rotating shaft (5) in correspondence.

4. The counterweight structure for an electric loader according to claim 3, characterized in that: The installation groove (14) is provided on the outer surface of the connection between the ends of the first counterweight block (2) and the second counterweight block (3).

5. The counterweight structure for an electric loader according to claim 4, characterized in that: A connecting groove (22) is provided on the inner wall side surface of the mounting groove (14) provided on the surface of the second counterweight (3), a fan-shaped groove (21) is provided on the inner wall side surface of the connecting groove (22), and a through hole (15) is provided on the bottom of the inner wall of the mounting groove (14) provided on the surface of the first counterweight (2).

6. The counterweight structure for an electric loader according to claim 5, characterized in that: A guide rod (8) is movably provided on the inner wall of the through hole (15); the rotating block (7) is fixed to the end of the guide rod (8); a connecting block (18) is fixed to the outer surface of the rotating block (7); a fan-shaped block (19) is fixed to the outer surface of the connecting block (18); and a first tooth groove (17) and a second tooth groove (20) are formed on the outer surface of the rotating block (7).

7. The counterweight structure for an electric loader according to claim 6, characterized in that: An inner groove (12) is provided on the inner wall side surface of the mounting groove (14) provided on the surface of the first counterweight (2), a notch (13) is provided on the inner groove (12), a spring (10) is provided on the inner wall of the inner groove (12), a baffle (11) is provided at the end of the spring (10), and the baffle (11) is located in the inner groove (12).

8. The counterweight structure for an electric loader according to claim 7, characterized in that: A telescopic block (9) is fixed on the surface of the baffle (11), a tooth block (16) is fixed on the end of the telescopic block (9), and the tooth block (16) corresponds to the first tooth groove (17) and the second tooth groove (20).

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