Novel counterweight structure

Abstract

The utility model discloses a novel balancing weight structure which comprises a bottom plate and a vertical plate, a plurality of rib plates are arranged between lifting lug plates above the bottom plate and between the lifting lug plates and the vertical plate, welded double grooves are formed between the lifting lug plates and the lug plates, and nut blocks are arranged on the side portions of the lug plates and are positioned through bolts. The internal structure of the counterweight is changed, so that the stress form of the counterweight shell is changed, the welding mode of the lug plate and the lifting lug plate is changed, and the structural form of the cushion block is changed; the device has the advantages of being high in universality, low in cost and convenient to adjust.

Description

Technical Field

[0001] The utility model relates to the field of crawler cranes, in particular to a novel counterweight structure. Background Art

[0002] Crawler crane is a truss boom structure crane with crawler chassis. Crawler crane is an important category of lifting machinery, with advantages such as high lifting performance, load-carrying travel, and adaptability to complex environments. Therefore, it plays an important role in infrastructure construction, wind power construction, nuclear power construction, petrochemical construction, etc.

[0003] The counterweight is a block device used to balance the lifting capacity of the crane. As a device for increasing the lifting weight and lifting torque of crawler cranes, the weight of the counterweight directly affects the lifting performance of the whole machine. Its cost is the most expensive structural part of the whole machine. Reducing the cost of the counterweight plays a vital role in optimizing the cost of the whole machine.

[0004] The existing counterweight uses thick steel plates welded into a shell to bear the weight of the filling material; the ear plate and the hanging ear plate of the existing counterweight are directly welded without a groove; the counterweight pad of the existing counterweight is a square steel that is machined and welded to the counterweight support point to keep the counterweight level with the ground. Therefore, the existing counterweight uses more plates, resulting in a relatively high cost of the counterweight; the angle of the counterweight cannot be adjusted, and when the same counterweight needs to be installed on other models, the counterweight will not be level with the ground, resulting in the counterweight being incompatible.

[0005] Therefore, it is necessary to develop a new type of counterweight structure to overcome the above problems. Utility Model Content

[0006] Purpose of the utility model: In view of the shortcomings and defects of the prior art, the utility model provides a new counterweight structure, which changes the internal structure of the counterweight and thus changes the force form of the counterweight shell, changes the welding method of the ear plate and the hanging ear plate, and changes the structural form of the pad; it has the beneficial effects of strong versatility, reduced cost, and convenient adjustment.

[0007] Technical solution: The utility model is a new type of counterweight structure, characterized in that it includes a bottom plate and a vertical plate, a plurality of rib plates are arranged between the ear plates above the bottom plate and between the ear plates and the vertical plates, a double-sided groove is welded between the ear plates, a nut block is arranged on the side of the ear plate, and the nut block is positioned by bolts.

[0008] Wherein, the vertical plate is a bent structure, and the vertical plate is located outside the ear plate.

[0009] Wherein, the lifting lug plate is provided with a plurality of lifting lugs.

[0010] Among them, the rib plates between the lug plates are arranged in parallel.

[0011] Among them, a hole body is provided in the middle of the rib plate.

[0012] Among them, the nut block is provided with a threaded hole, and the nut block replaces the counterweight cushion block in the prior art.

[0013] Among them, the threaded hole and the bolt are connected by corresponding threads.

[0014] Beneficial effects: Compared with the prior art, the present utility model has the following remarkable advantages: In the existing counterweight, the price of the plate is higher than that of the filler. When the weight of the counterweight remains unchanged, reducing the weight of the plate can effectively reduce the price of the counterweight. Since the thickness of the counterweight cushion block cannot be changed, the angle between the counterweight and the ground cannot be adjusted, greatly reducing its versatility. Therefore, the present utility model changes the internal structure of the counterweight, thereby changing the force-bearing form of the counterweight housing, changing the welding method of the ear plate and the lug plate, and changing the structural form of the cushion block; by optimizing the cushion block structure, the thickness of the cushion block is changed, and it is matched with the bolt, which can facilitate the adjustment of the counterweight angle, reduce the housing thickness of the counterweight, and has strong versatility. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of a counterweight in the prior art;

[0016] Figure 2 is a schematic side view structural diagram of a counterweight in the prior art;

[0017] Figure 3 is a schematic side view structural diagram of the present utility model;

[0018] Figure 4 is a schematic structural diagram of the present utility model;

[0019] In the figure, 1 is the bottom plate; 2 is the ear plate; 3 is the lug plate; 4 is the bolt; 5 is the nut block; 6 is the rib plate; 7 is the double-sided groove; 8 is the vertical plate. Detailed Embodiments

[0020] The technical solutions of the present utility model will be further described below in conjunction with the drawings and specific embodiments.

[0021] The novel counterweight structure of the utility model comprises a bottom plate 1 and a vertical plate 8. A plurality of rib plates 6 are arranged between the lifting lug plates 3 above the bottom plate 1 and between the lifting lug plates 3 and the vertical plate 8. A double-sided groove 7 is welded between the lifting lug plate 3 and the ear plate 2. A nut block 5 is arranged on the side of the ear plate 2, and the nut block 5 is positioned by a bolt 4. Among them, the vertical plate 8 is a bent structure, and the vertical plate 8 is located outside the lifting lug plate 3. A plurality of lifting lugs are arranged on the lifting lug plate 3. The rib plates 6 between the lifting lug plates 3 are arranged in parallel. A hole body is arranged in the middle of the rib plate 6. The nut block 5 is provided with a threaded hole, and the nut block 5 replaces the counterweight cushion block in the prior art. The threaded hole and the bolt 4 are connected by corresponding threads.

[0022] Such as Figure 3 With Figure 4 , the installation method of the counterweight directly causes the bottom plate of the counterweight to be the main stress point, and it is mainly affected by the gravity of the filler. The transverse tension generated by the gravity of the counterweight itself acts on the welding position between the counterweight ear plate and the lifting lug plate. The cushion block at the support point position cannot adjust the angle of the counterweight, resulting in poor versatility of the counterweight block.

[0023] The utility model evenly adds rib plates inside the counterweight to pull the bottom plate of the counterweight, changing the situation where only the bottom plate is affected by the gravity of the filler to the rib plates pulling the bottom plate to bear the force together, reducing the concentration of all the gravity of the filler on the bottom plate. And the original lifting lug plate is increased with a double-sided groove and welded to the ear plate to increase the welding strength. The original counterweight cushion block is changed to a threaded hole with a bolt attached. According to the actual horizontal situation of the counterweight, the purpose of adjustment can be achieved. The thickness of the vertical plate, the upper cover plate and the bottom plate wrapped on the filler can be reduced, achieving the purpose of cost reduction and good versatility.

Claims

1. A new type of counterweight structure, characterized by: The invention comprises a bottom plate (1) and a vertical plate (8), a plurality of rib plates (6) are arranged between the ear plates (3) above the bottom plate (1) and between the ear plates (3) and the vertical plate (8), a welded double-sided groove (7) is formed between the ear plates (3) and the ear plates (2), a nut block (5) is arranged on the side of the ear plates (2), and the nut block (5) is positioned by means of bolts (4).

2. The novel counterweight structure according to claim 1 is characterized in that: The vertical plate (8) is a bent structure, and the vertical plate (8) is located outside the hanging ear plate (3).

3. The novel counterweight structure according to claim 1 is characterized in that: The lifting lug plate (3) is provided with a plurality of lifting lugs.

4. The novel counterweight structure according to claim 1 is characterized in that: The rib plates (6) between the hanging ear plates (3) are arranged in parallel.

5. The novel counterweight structure according to claim 1 is characterized in that: A hole is provided in the middle of the rib plate (6).

6. The novel counterweight structure according to claim 1 is characterized in that: The nut block (5) is provided with a threaded hole, and the nut block (5) replaces the balancing weight pad in the prior art.

7. The novel counterweight structure according to claim 6 is characterized in that: The threaded hole and the bolt (4) are connected via corresponding threads.

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