Excavator counterweight assembling and welding tool

Abstract

The utility model relates to the technical field of excavator counter weight installation, and discloses an excavator counter weight assembling and welding tool which comprises a connecting plate and a counter weight arranged on the side face of the connecting plate. When the limiting frame is pulled outwards, the multiple first connecting rods can slide along the sliding grooves, when the multiple first connecting rods are pulled, the multiple springs in the sliding grooves can be pulled at the same time, the balance weight can be placed in the limiting frame after the limiting frame is pulled open, the limiting frame is loosened under the action of the multiple springs, and then the balance weight can automatically retract backwards; according to the excavator counterweight assembling and welding tool, when the excavator counterweight assembling and welding tool is used for assembling the counterweight, the movable assembly is arranged to assist in assembling the counterweight, and the counterweight is placed in the limiting frame; and a pulling force does not need to be always provided for the counterweight before installation is completed.

Description

Technical Field

[0001] This utility model relates to the field of excavator counterweight installation technology, specifically to an excavator counterweight welding fixture. Background Technology

[0002] An excavator is an earthmoving machine that uses a bucket to excavate materials above or below the machine's bearing surface and load them into transport vehicles or unload them at a stockpile. The materials excavated by excavators are mainly soil, coal, silt, and pre-loosened soil and rock. In recent years, the development of construction machinery has been relatively rapid, and excavators have become one of the most important pieces of construction machinery. The counterweight of an excavator is a crucial component ensuring the machine's stability and balance. Its weight varies depending on the model. The counterweight is mainly used to balance the excavator's center of gravity during operation, especially during excavation and lifting operations, preventing the machine from tipping over or losing balance. The weight and position design of the counterweight directly affect the machine's stability and operating efficiency.

[0003] When installing existing counterweights, it is necessary to align them with the reserved mounting holes on the counterweight blocks and to lift the counterweights to facilitate their installation and fixation. During the installation process, additional auxiliary devices are required to assist in the installation. Furthermore, the hoisting method is prone to shaking during installation, which can lead to inaccurate final installation. It can also cause deformation of the previously installed positions due to shaking, affecting subsequent installations. Therefore, it still has certain inconveniences in actual use. Utility Model Content

[0004] The purpose of this utility model is to provide a welding fixture for excavator counterweights, in order to solve the problems mentioned in the background art. When installing existing counterweights, it is necessary to align them with the reserved mounting holes of the counterweight blocks and to lift the counterweights for installation and fixation. In addition, other auxiliary devices are required to assist in the installation process. Furthermore, the hoisting method is prone to shaking during installation, resulting in inaccurate final installation. It is also easy for the previously installed positions to deform due to shaking, affecting subsequent installations. Therefore, there are still some inconveniences in actual use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding fixture for excavator assembly, comprising a connecting plate and a counterweight disposed on the side of the connecting plate, a movable component disposed on the side of the connecting plate, the movable component comprising a limiting frame movably connected to the side wall of the connecting plate, a plurality of connecting rods being fixedly installed at equal intervals on the side wall of the connecting plate, a plurality of sliding grooves being equidistantly opened on the side wall of the limiting frame, the connecting rods being slidably connected in the sliding grooves, a connecting groove being opened at one end of each of the plurality of connecting rods, and a spring being fixedly installed between the inner wall of each of the plurality of sliding grooves and the connecting groove.

[0006] Preferably, each of the first connecting rods has a slot inside, and each of the inner walls of the slots has a second connecting rod fixedly installed thereon, the second connecting rod being slidably connected within the slot.

[0007] Preferably, an auxiliary component is provided between the connecting plate and the limiting frame. The auxiliary component includes a fixing block that is fixedly installed on the side wall of the connecting plate, and the fixing block has a plurality of connection ports equidistantly opened.

[0008] Preferably, connecting blocks are fixedly installed at equal intervals on the side of the limiting frame, and several straps are fixedly installed at equal intervals on the side wall of the limiting frame.

[0009] Preferably, the straps are inserted into the connection port and the connection block, and a plurality of slots are equally spaced on the straps, with a limit block fixedly installed at one end of each strap.

[0010] Preferably, each of the connecting blocks is slidably mounted with a fixing pin, and the fixing pin is slidably connected in the slot.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. When installing the counterweight using this device, the limiting frame can be pulled outward first. When the limiting frame is pulled outward, multiple connecting rods can slide along the slide groove. When multiple connecting rods are pulled, multiple springs in the slide groove will be pulled simultaneously. After the limiting frame is pulled out, the counterweight can be placed in the limiting frame. Under the action of multiple springs, the limiting frame will automatically retract after being released, automatically clamping the counterweight in the limiting frame. At this time, the connection between the counterweight and the connecting plate can be completed through the mounting holes on the counterweight. When installing the counterweight, the excavator counterweight welding fixture can assist in the installation of the counterweight by setting the movable components. The counterweight can be placed in the limiting frame without constantly providing tension to the counterweight before the installation is completed.

[0013] 2. With the cooperation of the fixing block, connecting port, straps, connecting block, limiting block, slot, and fixing pin, when installing the counterweight, the limiting frame can be pulled outward first. When pulled, connecting rod one slides in the groove. When connecting rod one moves, connecting rod two slides in the slot. The setting of multiple sets of connecting rod one and connecting rod two can increase the load-bearing capacity of the device and prevent the moving component from deforming due to excessive weight of the counterweight. After pulling open the limiting frame, the counterweight can be placed in the limiting frame. Then, multiple straps are inserted into the connecting port. By pulling the straps, the side wall of the counterweight is made to fit with the connecting plate. When pulled to the appropriate position, the fixing pin can be inserted into the connecting block and cooperate with the slot to fix and limit the straps. At this time, the installation of the counterweight can make the side wall of the counterweight fit more closely with the side wall of the connecting plate. When using the device, the auxiliary component can be used to pull the counterweight in the moving component to the position where it fits with the side wall of the connecting plate, which makes the installation of the counterweight easier. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the auxiliary component of this utility model;

[0017] Figure 4 For the present utility model Figure 2 Enlarged 3D structural diagram at point A.

[0018] In the diagram: 1. Connecting plate; 2. Counterweight; 3. Movable component; 31. Limiting frame; 32. Slide groove; 33. Connecting rod one; 34. Slot; 35. Connecting groove; 36. Connecting rod two; 37. Spring; 4. Auxiliary component; 41. Fixing block; 42. Connection port; 43. Strap; 44. Connecting block; 45. Limiting block; 46. Slot; 47. Fixing pin. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1: Please refer to Figure 1 - Figure 3A welding fixture for excavator assembly includes a connecting plate 1 and a counterweight 2 disposed on the side of the connecting plate 1. A movable component 3 is disposed on the side of the connecting plate 1. The movable component 3 includes a limiting frame 31 movably connected to the side wall of the connecting plate 1. A plurality of connecting rods 33 are fixedly installed at equal intervals on the side wall of the connecting plate 1. A plurality of sliding grooves 32 are opened at equal intervals on the side wall of the limiting frame 31. The connecting rods 33 are slidably connected in the sliding grooves 32. A connecting groove 35 is opened at one end of each of the plurality of connecting rods 33. A spring 37 is fixedly installed between the inner wall of the plurality of sliding grooves 32 and the connecting grooves 35.

[0021] In this embodiment: When using the device to install the counterweight 2, the limiting frame 31 can be pulled outward first. When the limiting frame 31 is pulled outward, multiple connecting rods 33 can slide along the slide groove 32. When the multiple connecting rods 33 are pulled, they will simultaneously pull multiple springs 37 in the slide groove 32. After the limiting frame 31 is pulled out, the counterweight 2 can be placed in the limiting frame 31. After the limiting frame 31 is released under the action of multiple springs 37, it can automatically retract and automatically clamp the counterweight 2 in the limiting frame 31. At this time, the connection between the counterweight 2 and the connecting plate 1 can be completed through the mounting hole on the counterweight 2. When the excavator counterweight welding fixture is installing the counterweight 2, the installation of the counterweight 2 can be assisted by the setting of the movable component 3. The counterweight 2 can be placed in the limiting frame 31 without having to keep providing tension to the counterweight 2 before the installation is completed.

[0022] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figure 2 - Figure 4 Each of the connecting rods 33 has a slot 34 inside, and each of the sliding grooves 32 has a connecting rod 36 fixedly installed on its inner wall. The connecting rod 36 is slidably connected in the slot 34. The connection rods 33 and 36 increase the stability of the movable component 3.

[0023] An auxiliary component 4 is provided between the connecting plate 1 and the limiting frame 31. The auxiliary component 4 includes a fixing block 41 fixedly installed on the side wall of the connecting plate 1. Several connecting ports 42 are equidistantly provided on the fixing block 41. The connecting ports 42 are provided for inserting the straps 43.

[0024] Connecting blocks 44 are fixedly installed at equal intervals on the side of the limiting frame 31, and several straps 43 are fixedly installed at equal intervals on the side wall of the limiting frame 31. The straps 43 can be inserted into the connecting port 42 to limit the counterweight 2.

[0025] The straps 43 are inserted into the connection port 42 and the connection block 44. Several slots 46 are equally spaced on several straps 43. A limit block 45 is fixedly installed at one end of the strap 43. The limit block 45 installed on the strap 43 can limit the strap 43.

[0026] Each connecting block 44 is slidably mounted with a fixing pin 47, which is slidably connected in the slot 46. The fixing pin 47 and the slot 46 cooperate to fix the strap 43.

[0027] In this embodiment: When installing the counterweight 2, the limiting frame 31 can be pulled outward first. When pulled, the connecting rod 1 33 slides in the slide groove 32. When the connecting rod 1 33 moves, it can drive the connecting rod 2 36 to slide in the slot 34. The setting of multiple sets of connecting rod 1 33 and connecting rod 2 36 can increase the load-bearing capacity of the device and prevent the moving component 3 from deforming due to the excessive weight of the counterweight 2. After pulling open the limiting frame 31, the counterweight 2 can be placed in the limiting frame 31, and then multiple straps 43 are inserted. When the counterweight 2 is pulled into the connection port 42, the side wall of the counterweight 2 is brought into contact with the connecting plate 1 by pulling the strap 43. When it is pulled to the appropriate position, the fixing pin 47 can be inserted into the connecting block 44 and cooperate with the slot 46 to fix and limit the strap 43. At this time, the installation of the counterweight 2 can be carried out so that the side wall of the counterweight 2 is closer to the side wall of the connecting plate 1. When the device is in use, the counterweight 2 in the movable component 3 can be pulled to the position where it is in contact with the side wall of the connecting plate 1 by the auxiliary component 4, which makes the installation of the counterweight 2 easier.

[0028] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding tool for excavator counterweight assembly, comprising a connecting plate (1) and a counterweight (2) arranged on the side of the connecting plate (1), characterized in that: The side of the connecting plate (1) is provided with a movable assembly (3), the movable assembly (3) comprises a limiting frame (31) movably connected to the side wall of the connecting plate (1), a plurality of connecting rods (33) are equidistantly and fixedly installed on the side wall of the connecting plate (1), a plurality of sliding grooves (32) are equidistantly formed in the side wall of the limiting frame (31), the connecting rod (33) is slidably connected in the sliding groove (32), a connecting groove (35) is formed at one end of the connecting rod (33), and a spring (37) is fixedly installed between the inner wall of the sliding groove (32) and the connecting groove (35).

2. The package of claim 1, wherein: A plurality of grooves (34) are formed in the connecting rod (33), a connecting rod (36) is fixedly installed on the inner wall of the sliding groove (32), and the connecting rod (36) is slidably connected in the groove (34).

3. A package for welding a counterweight for an excavator according to claim 2, characterized in that: The connecting plate (1) and the limiting frame (31) are provided with an auxiliary assembly (4), the auxiliary assembly (4) comprises a fixed block (41) fixedly installed on the side wall of the connecting plate (1), and a plurality of connecting ports (42) are equidistantly formed in the fixed block (41).

4. The package of claim 3, wherein: The side of the limiting frame (31) is equidistantly and fixedly provided with a connecting block (44), and the side wall of the limiting frame (31) is equidistantly and fixedly provided with a plurality of binding belts (43).

5. A package for welding a counterweight for an excavator according to claim 4, characterised in that: The binding belt (43) is arranged in the connecting port (42) and the connecting block (44), a plurality of clamping grooves (46) are equidistantly formed in the binding belt (43), and a limiting block (45) is fixedly installed at one end of the binding belt (43).

6. A package for welding a counterweight for an excavator according to claim 5, characterized in that: The connecting block (44) is slidably provided with a fixed pin (47), and the fixed pin (47) is slidably connected in the clamping groove (46).

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