Counterweight structure of excavator

Abstract

The utility model relates to the technical field of rescue equipment, and provides an excavator counterweight structure which comprises an excavator frame, a first baffle is installed at the rear end of the excavator frame, a supporting plate is installed at the rear end of the first baffle, a main counterweight block is installed on the supporting plate, and a second baffle is arranged in front of the first baffle. A supporting beam is arranged between the first baffle and the second baffle, an auxiliary balancing weight is arranged between the first baffle and the second baffle, the balancing weight is provided with an installation groove, the installation groove and the supporting beam are matched to install a main balancing weight and the auxiliary balancing weight, the auxiliary balancing weight is arranged on one side of the main balancing weight, the auxiliary balancing weight is arranged in a hollow mode, and the auxiliary balancing weight is arranged on the other side of the main balancing weight. A plurality of filling openings are formed in the top end of the auxiliary balancing weight and provided with filling doors so that the weight of the whole balancing weight can be conveniently adjusted, and the hidden danger that the pile driver inclines forwards is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator counterweight systems, in particular to an excavator counterweight structure. Background Art

[0002] An excavator, also known as an excavator or a backhoe, is an earth-moving machine that uses a bucket to dig materials above or below the supporting surface and load them into transport vehicles or unload them to stockpiles. The materials excavated by the excavator are mainly soil, coal, silt, and pre-loosened soil and rocks. The counterweight structure of the excavator is to balance the torque generated by the excavator, so that the center of the excavator always remains near the center of rotation, thereby maintaining the overall balance.

[0003] When the excavator is used for mining, the excavator operator will use the excavator to drive piles. When the pile driving equipment is installed at the front end of the excavator, the tilting moment of the excavator will increase. The single counterweight of the existing model cannot balance the piling excavator. When the excavator is used for piling, there is a risk of forward tilting. After the excavator is installed with different accessories, the excavator forms different tilting moments. At the same time, the existing counterweight block is fixed, and it is inconvenient to adjust the weight of the counterweight block, making it impossible to balance different tilting moments. Utility Model Content

[0004] The utility model aims to provide a counterweight structure for an excavator, which can solve the technical problem that the existing life-saving air cushion has a low success rate in rescuing people falling from a high altitude.

[0005] To achieve the above-mentioned purpose, the utility model proposes an excavator counterweight structure, including an excavator frame, a first baffle is installed at the rear end of the excavator frame, a support plate is installed at the rear end of the first baffle, a main counterweight block is installed on the support plate, a second baffle is arranged in front of the first baffle, a support beam is arranged between the first baffle and the second baffle, a secondary counterweight block is arranged between the first baffle and the second baffle, and the counterweight block is provided with an installation groove, and the installation groove is installed in cooperation with the support beam

[0006] A main counterweight block and an auxiliary counterweight block, wherein the auxiliary counterweight block is arranged at one side of the main counterweight block, the auxiliary counterweight block is arranged hollow, a plurality of filling ports are arranged at the top of the auxiliary counterweight block, and a filling door is arranged at the filling port.

[0007] It is further configured that the auxiliary counterweight block is surrounded by side panels, a top plate is fixedly installed above the side panels, and the filling ports are evenly opened on the top plate.

[0008] It is further configured that the filling port is a rectangular hole, a filling door is installed above the rectangular hole, and the filling door is fixed to the auxiliary counterweight block by bolts.

[0009] It is further configured that the main counterweight block is fixedly installed at the rear end of the excavator, and the side wall of the auxiliary counterweight block is in contact with the side wall of the main counterweight block.

[0010] It is further configured that a guide boss is provided between the support beam and the first baffle.

[0011] It is further configured that a plurality of lifting rings are fixedly installed on the upper side walls of the main counterweight block and the auxiliary counterweight block.

[0012] It is further configured that a handle is installed on the side wall of the filling door, and the handle is welded to the filling door.

[0013] It is further configured that the main counterweight block includes an upper counterweight block and a lower counterweight block, and the counterweight block and the lower counterweight block are fixedly installed.

[0014] It is further configured that the upper surfaces of the main counterweight block and the auxiliary counterweight block are flush, and the two side surfaces of the main counterweight block and the auxiliary counterweight block are flush.

[0015] It is further configured that the upper surface of the auxiliary counterweight block is flush with the upper surface of the excavator.

[0016] Beneficial effects of one or more of the above technical solutions:

[0017] The main counterweight block and the auxiliary counterweight block disclosed by the utility model have consistent appearances front and back, and the mounting points of the auxiliary counterweight block and the main counterweight block are located below the auxiliary counterweight block and the main counterweight block, thereby increasing the weight of the overall counterweight block and solving the hidden danger of the pile driver tilting forward. The filling port above the auxiliary counterweight block can be opened to facilitate the adjustment of the counterweight weight. Before installing different accessories, water or sand and gravel are poured into the filling port in advance to balance the tilting moment caused by different accessories. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the auxiliary counterweight block of the utility model.

[0021] Figure 3 It is a structural schematic diagram of the excavator frame of the utility model.

[0022] In the figure, 1 is a main counterweight;

[0023] 2 pairs of counterweights; 21 top plate; 22 filling port; 23 filling door; 24 side plate; 25 handle; 26 lifting ring; 27 mounting slot;

[0024] 3 Excavator frame; 31 first baffle; 32 support plate; 33 second baffle; 34 support beam; 35 guide boss. DETAILED DESCRIPTION

[0025] The specific implementation of this embodiment is described below in conjunction with the accompanying drawings.

[0026] Reference Figure 1-3 A counterweight structure for an excavator includes an excavator frame 3, a first baffle plate 31 is installed at the rear end of the excavator frame 3, a support plate 32 is installed at the rear end of the first baffle plate 31, a main counterweight block 1 is installed on the support plate 32, a second baffle plate 33 is arranged in front of the first baffle plate 31, a support beam 34 is arranged between the first baffle plate 31 and the second baffle plate 33, a secondary counterweight block 2 is arranged between the first baffle plate 31 and the second baffle plate 33, and a mounting groove 27 is arranged on the counterweight block, which is installed in cooperation with the support beam 34.

[0027] The auxiliary counterweight block 2 is arranged at one side of the main counterweight block 1 . The auxiliary counterweight block 2 is hollow. A plurality of filling ports 22 are provided at the top of the auxiliary counterweight block 2 . A filling door 23 is provided at the filling port 22 .

[0028] The auxiliary counterweight block 2 is surrounded by side plates 24 , a top plate 21 is fixedly installed above the side plates 24 , and filling ports 22 are evenly opened on the top plate 21 .

[0029] The filling port 22 is a rectangular hole, and a filling door 23 is installed above the rectangular hole. The filling door 23 is fixed to the auxiliary counterweight 2 by bolts. The bolts are detachable. When the filling is completed, the bolts are tightened to fix the filling door 23 above the filling port 22.

[0030] The main counterweight block 1 is fixedly installed at the rear end of the excavator 3 , and the side wall of the auxiliary counterweight block 2 contacts the side wall of the main counterweight block 1 .

[0031] A guide boss is arranged between the support beam and the first baffle.

[0032] Several lifting rings 26 are fixedly installed on the upper side walls of the main counterweight block 1 and the auxiliary counterweight block 2. Since the main counterweight block 1 and the auxiliary counterweight block 2 are heavy and difficult to install, the setting of the lifting rings 26 ensures that the main counterweight block 1 and the auxiliary counterweight block 2 can be lifted by a crane when being installed on the excavator 3.

[0033] A handle 25 is installed on the side wall of the filling door 23. When it is necessary to fill weight into the filling port 22, the handle 25 of the filling door 23 is pulled to open the filling door 23, and then the main counterweight block 1 and the auxiliary counterweight block 2 are loaded.

[0034] The main counterweight block 1 includes an upper counterweight block and a lower counterweight block. The upper counterweight block and the lower counterweight block are solid metal blocks. The upper counterweight block is fixedly installed above the lower counterweight block. The size of the main counterweight block 1 is fixed.

[0035] The upper surfaces of the main counterweight block 1 and the auxiliary counterweight block 2 are flush, the side surfaces of the main counterweight block 1 and the auxiliary counterweight block 2 are flush, the upper surface of the auxiliary counterweight block 2 is flush with the upper surface of the excavator, and the auxiliary counterweight block 2, the main counterweight block 1 and the excavator 3 are consistent in appearance front and back, ensuring the overall stability and balance of the excavator.

[0036] Before installing different accessories, adjust the weight of the auxiliary counterweight 2 in advance according to the weight of the accessories. First, remove the bolts, pull the handle 25 to open the filling door 23, and pour sand or water into the filling port. After the weight of the poured object meets the requirement, close the filling door 23 and tighten the bolts.

[0037] Although the above describes the specific implementation methods of the utility model in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A counterweight structure for an excavator, characterized in that: The excavator frame comprises an excavator frame, a first baffle is installed at the rear end of the excavator frame, a support plate is installed at the rear end of the first baffle, a main counterweight is installed on the support plate, a second baffle is arranged in front of the first baffle, a support beam is arranged between the first baffle and the second baffle, a secondary counterweight is arranged between the first baffle and the second baffle, and a mounting groove is arranged on the counterweight, and the mounting groove is installed in cooperation with the support beam A main counterweight block and an auxiliary counterweight block, wherein the auxiliary counterweight block is arranged at one side of the main counterweight block, the auxiliary counterweight block is arranged hollow, a plurality of filling ports are arranged at the top of the auxiliary counterweight block, and a filling door is arranged at the filling port.

2. The excavator counterweight structure according to claim 1, characterized in that: The auxiliary counterweight block is surrounded by side plates, a top plate is fixedly installed above the side plates, and the filling ports are evenly arranged on the top plate.

3. The excavator counterweight structure according to claim 1, characterized in that: The filling port is a rectangular hole, and a filling door is installed above the rectangular hole. The filling door is fixed to the auxiliary counterweight block by bolts.

4. The excavator counterweight structure according to claim 1, characterized in that: The main counterweight block is fixedly installed at the rear end of the excavator, and the side wall of the auxiliary counterweight block contacts the side wall of the main counterweight block.

5. The excavator counterweight structure according to claim 1, characterized in that: A guide boss is arranged between the support beam and the first baffle.

6. The excavator counterweight structure according to claim 1, characterized in that: A plurality of lifting rings are fixedly mounted on the upper side walls of the main counterweight block and the auxiliary counterweight block.

7. The excavator counterweight structure according to claim 1, characterized in that: A handle is installed on the side wall of the filling door.

8. The excavator counterweight structure according to claim 1, characterized in that: The main counterweight block includes an upper counterweight block and a lower counterweight block.

9. The excavator counterweight structure according to claim 1, characterized in that: The upper surfaces of the main counterweight block and the auxiliary counterweight block are flush, and the side surfaces of the main counterweight block and the auxiliary counterweight block are flush.

10. The excavator counterweight structure according to claim 1, characterized in that: The upper surface of the auxiliary counterweight block is flush with the upper surface of the excavator.

Images