Counterweight support assembly of excavator

Abstract

The utility model relates to the technical field of excavator balance weight supports, and discloses an excavator balance weight support assembly which comprises a balance weight cross beam and an installation plate installed on the side wall of the balance weight cross beam, a driving piece is installed on the side wall of the balance weight cross beam, and a balance weight structure is further arranged on one side of the balance weight cross beam. A guide rail structure is fixedly installed on the side wall of the balance weight cross beam, the balance weight is placed in the bearing frame, the stabilizing plate slides, the sliding block slides in the sliding groove till the balance weight is attached, then the balance weight is fixed through the fixing plate and the bolt, the stabilizing plate does not move, the position of the balance weight can be limited, then the air cylinder is started, and the balance weight is fixed. When the excavator moves, the connecting support can be pushed to move, at the moment, the balance weight structure slides on the sliding rail, the limiting sliding block slides in the limiting groove, the balance weight structure can be supported, the balance weight structure can move stably, the position of the balance weight block is fixed, the whole excavator is stable, and therefore the stability and safety of the excavator are guaranteed.

Description

Technical Field

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

[0002] The excavator counterweight support assembly is an important component of an excavator, mainly used to support and fix the excavator's counterweight. It plays a key role in the excavator's stability, working capacity, and safety.

[0003] For example, an excavator counterweight support assembly with announcement number CN216586754U includes: a crossbeam of the excavator main frame, with two support beams extending outward from one side of the crossbeam, and through holes vertically arranged along the upper edge of the support beams; a load-bearing frame is fitted onto the support beams in a sliding structure, and mounting grooves that mate with the through holes are opened on the bottom and top surfaces of the load-bearing frame; a connecting beam is fixedly arranged between the two load-bearing frames; one end of a screw is connected to the crossbeam in a rotating structure, and the other end is connected to the connecting beam in a threaded structure; by setting up the load-bearing frame, the counterweight can be directly engaged with the upper part of the load-bearing frame, and its sliding property can be used to adjust the position of the counterweight on the support beam, eliminating the need for multiple people to adjust the position of the counterweight repeatedly during hoisting, reducing the occurrence of danger and improving installation efficiency; the screw drives the load-bearing frame to the appropriate position through the connecting beam, saving workers' physical strength, with a simple structure, easy to implement, small space occupation, and optimized design.

[0004] The aforementioned patent proposes that the load-bearing frame can be moved by the cooperation of the screw and the connecting beam, which can adjust the position of the counterweight on the support beam. However, during the use of the excavator counterweight bracket assembly, since the load-bearing frame moves back and forth only by the action of the screw, it is difficult to ensure the stability of the movement of the load-bearing frame and the counterweight, which will cause the center of gravity to change, resulting in the excavator being less stable. Utility Model Content

[0005] The purpose of this utility model is to provide an excavator counterweight support assembly to solve the problem mentioned in the background art that the load-bearing frame moves back and forth only by the action of the screw, which makes it difficult to ensure the stability of the movement of the load-bearing frame and the counterweight block, thus causing the center of gravity to change and resulting in insufficient stability of the excavator.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an excavator counterweight support assembly, including a counterweight beam and a mounting plate installed on the side wall of the counterweight beam. The counterweight beam can be installed at the tail end of the excavator by means of the mounting plate and bolts. A driving component is installed on the side wall of the counterweight beam. A counterweight structure is also provided on one side of the counterweight beam. A guide rail structure is fixedly installed on the side wall of the counterweight beam. The guide rail structure is located at the lower end of the counterweight structure. The driving component can drive the counterweight structure to slide on the guide rail structure.

[0007] The guide rail structure includes a slide rail and a limiting groove formed on the surface of the slide rail. A limiting plate is fixedly installed at the end of the slide rail away from the counterweight beam. A limiting slider is fixedly installed at the lower end of the counterweight structure. The limiting slider is slidably connected in the limiting groove. A pressure sensor is embedded inside the limiting plate. The pressure sensor is used to monitor the pressure. The counterweight structure slides on the slide rail, and the limiting slider slides in the limiting groove, which can provide support for the counterweight structure.

[0008] Preferably, the driving component includes a cylinder and a connecting bracket connected to the telescopic end of the cylinder. The connecting bracket has a U-shaped cross-section, and one side of the connecting bracket is connected to a counterweight structure. When the cylinder is activated, the connecting bracket and the counterweight structure can be moved.

[0009] Preferably, the counterweight structure includes a load-bearing frame and a connecting plate installed on the side wall of the load-bearing frame. Two sets of load-bearing frames are provided, and the connecting plate is located between the two sets of load-bearing frames. A door panel is installed on the side wall of the load-bearing frame. The load-bearing frame is used to place the counterweight block. A stabilizing member is installed inside the load-bearing frame to restrict the position of the counterweight block.

[0010] Preferably, the stabilizing component includes a stabilizing plate and sliding blocks fixedly installed at the upper and lower ends of the stabilizing plate. Sliding grooves are provided on the inner top wall and inner bottom wall of the load-bearing frame. The sliding blocks and the sliding grooves are adapted to each other. A fixing plate is fixedly installed on the outer side of the stabilizing plate, and the fixing plate can be fixed with bolts so that the position of the stabilizing plate does not move.

[0011] Preferably, the connecting plate is also equipped with an alarm for alarm notification, and the alarm is connected to the pressure sensor signal.

[0012] Preferably, the outer side of the counterweight beam is provided with a guard plate A and a guard plate B. There are two sets of guard plates A, and the two sets of guard plates A are placed on the outer side of the counterweight beam. Guard plates A and B are used to protect the counterweight beam. The inner walls of guard plates A and B are provided with a wear-resistant layer, which plays a role in wear resistance.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Through the setting of counterweight beam, mounting plate, drive component, counterweight structure and guide rail structure, the counterweight structure is placed on the guide rail structure and moves in conjunction with the drive component, so that the position of the counterweight structure is adjusted, and the guide rail structure supports it, so that it can move smoothly. At the same time, the counterweight block is also restricted, and it will not deviate during movement, thereby ensuring the stability of the excavator and the safety of use.

[0015] 2. The counterweight beam, guard plate A, wear-resistant layer and guard plate B are set up. Guard plate A and guard plate B are fixed to the outer wall of the counterweight beam with bolts, which can shield and protect it, reduce collision, and reduce the wear of the counterweight beam surface with the help of the wear-resistant layer. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the counterweight beam of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the counterweight structure of this utility model;

[0019] Figure 4 For the present utility model Figure 3 Enlarged 3D structural diagram at point A.

[0020] In the diagram: 1. Counterweight beam; 11. Guard plate A; 12. Wear-resistant layer; 13. Guard plate B; 2. Mounting plate; 3. Drive component; 31. Cylinder; 32. Connecting bracket; 4. Counterweight structure; 41. Load-bearing frame; 42. Connecting plate; 43. Door panel; 44. Stabilizer; 441. Stabilizing plate; 442. Fixing plate; 443. Sliding block; 444. Slide groove; 5. Guide rail structure; 51. Slide rail; 52. Limiting groove; 53. Limiting plate; 54. Pressure sensor; 55. Alarm; 56. Limiting slider. Detailed Implementation

[0021] 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.

[0022] Example 1: Please refer to Figures 1-4 An excavator counterweight support assembly includes a counterweight beam 1, a mounting plate 2, a drive component 3, a counterweight structure 4, and a guide rail structure 5. The mounting plate 2 is placed on the side wall of the counterweight beam 1 and is located at the upper part of the counterweight beam 1. The drive component 3 is located on one side of the counterweight beam 1, and the mounting plate 2 and the drive component 3 are on the same side. The counterweight structure 4 is located on the other side of the counterweight beam 1. The guide rail structure 5 is located at the lower end of the counterweight structure 4 and is fixed to the counterweight beam 1. The drive component 3 can drive the counterweight structure 4 to move, and the counterweight structure 4 slides on the guide rail structure 5, so that the counterweight structure 4 moves smoothly.

[0023] The guide rail structure 5 includes a slide rail 51 and a limiting groove 52 formed on the surface of the slide rail 51. A limiting plate 53 is fixedly installed at the end of the slide rail 51 away from the counterweight beam 1. A limiting slider 56 is fixedly installed at the lower end of the counterweight structure 4. The limiting slider 56 is slidably connected in the limiting groove 52. A pressure sensor 54 is embedded inside the limiting plate 53. The pressure sensor 54 is an MPX2010 and is used to monitor pressure. The counterweight structure 4 slides on the slide rail 51, and the limiting slider 56 slides in the limiting groove 52, which can provide support for the counterweight structure 4 and make the counterweight structure 4 move smoothly.

[0024] The driving component 3 includes a cylinder 31 and a connecting bracket 32 ​​connected to the telescopic end of the cylinder 31. The connecting bracket 32 ​​has a U-shaped cross-section, and one side of the connecting bracket 32 ​​is connected to the counterweight structure 4. When the cylinder 31 is started, the connecting bracket 32 ​​and the counterweight structure 4 can be moved.

[0025] The counterweight structure 4 includes a load-bearing frame 41 and a connecting plate 42 installed on the side wall of the load-bearing frame 41. There are two sets of load-bearing frames 41, and the connecting plate 42 is located between the two sets of load-bearing frames 41. A door panel 43 is installed on the side wall of the load-bearing frame 41. The load-bearing frame 41 is used to place the counterweight block. A stabilizing member 44 is installed inside the load-bearing frame 41. The stabilizing member 44 is used to restrict the position of the counterweight block so that the counterweight block is stable.

[0026] The stabilizing component 44 includes a stabilizing plate 441 and sliding blocks 443 fixedly installed at the upper and lower ends of the stabilizing plate 441. Sliding grooves 444 are provided on the inner top wall and inner bottom wall of the load-bearing frame 41. The sliding blocks 443 and the sliding grooves 444 are adapted to each other. A fixing plate 442 is fixedly installed on the outer side of the stabilizing plate 441 and can be fixed with bolts to prevent the stabilizing plate 441 from moving, thereby restricting the position of the counterweight.

[0027] An alarm 55 for alarm reminder is also installed on the connecting plate 42. The alarm 55 is connected to the pressure sensor 54. The model of the alarm 55 is PT2272. When the support frame 41 moves to one side of the limit plate 53, it can squeeze the pressure sensor 54. At this time, the pressure sensor 54 will provide an analog signal. The alarm 55 has a threshold. When the signal of the pressure sensor 54 exceeds or falls below this threshold, the alarm 55 will be triggered to remind the staff and stop the operation of the cylinder 31 in time.

[0028] In this embodiment: the counterweight is placed inside the load-bearing frame 41, and the sliding stabilizing plate 441 is slidable, so that the sliding block 443 slides in the sliding groove 444 until the counterweight is in contact. Then, it is fixed by the fixing plate 442 and bolts, so that the position of the stabilizing plate 441 does not move, thus restricting the position of the counterweight. Then, the cylinder 31 is activated, which can push the connecting bracket 32 ​​to move. At this time, the counterweight structure 4 slides on the slide rail 51, and the limiting slider 56 slides in the limiting groove 52, which can provide support for the counterweight structure 4, so that the counterweight structure 4 moves smoothly and the position of the counterweight is fixed, making the whole relatively stable, thereby ensuring the stability and safety of the excavator.

[0029] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figure 2 The counterweight beam 1 is provided with a protective plate A11 and a protective plate B13 on its outer side. There are two sets of protective plates A11, which are placed on the outer side of the counterweight beam 1. The protective plates A11 and B13 are used to protect the counterweight beam 1. The inner wall of the protective plates A11 and B13 is provided with a wear-resistant layer 12, which plays a role in wear resistance.

[0030] In this embodiment: two sets of guard plates A11 are placed at the front and rear ends of the counterweight beam 1 respectively, and guard plate B13 is placed between the two sets of mounting plates 2. Then, they are fixed with bolts so that the two sets of guard plates A11 and guard plate B13 can protect the outer edge of the counterweight beam, thereby achieving the purpose of protection. In addition, the wear-resistant layer 12 can reduce the wear on the surface of the counterweight beam 1.

[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] 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. An excavator counterweight support assembly, comprising a counterweight beam (1) and a mounting plate (2) mounted on the side wall of the counterweight beam (1), characterized in that: A drive unit (3) is installed on the side wall of the counterweight beam (1), and a counterweight structure (4) is also provided on one side of the counterweight beam (1). A guide rail structure (5) is fixedly installed on the side wall of the counterweight beam (1), and the guide rail structure (5) is placed at the lower end of the counterweight structure (4). The guide rail structure (5) includes a slide rail (51) and a limiting groove (52) formed on the surface of the slide rail (51). A limiting plate (53) is fixedly installed at one end of the slide rail (51) away from the counterweight beam (1). A limiting slider (56) is fixedly installed at the lower end of the counterweight structure (4). The limiting slider (56) is slidably connected in the limiting groove (52). A pressure sensor (54) is embedded inside the limiting plate (53). The pressure sensor (54) is used to monitor pressure.

2. The excavator counterweight support assembly according to claim 1, characterized in that: The drive component (3) includes a cylinder (31) and a connecting bracket (32) connected to the telescopic end of the cylinder (31). The connecting bracket (32) has a U-shaped cross-section and one side of the connecting bracket (32) is connected to the counterweight structure (4).

3. The excavator counterweight support assembly according to claim 2, characterized in that: The counterweight structure (4) includes a load-bearing frame (41) and a connecting plate (42) installed on the side wall of the load-bearing frame (41). There are two sets of load-bearing frames (41), and the connecting plate (42) is located between the two sets of load-bearing frames (41). A door panel (43) is installed on the side wall of the load-bearing frame (41). The load-bearing frame (41) is used to place the counterweight block. A stabilizing member (44) is installed inside the load-bearing frame (41).

4. The excavator counterweight support assembly according to claim 3, characterized in that: The stabilizing component (44) includes a stabilizing plate (441) and sliding blocks (443) fixedly installed at the upper and lower ends of the stabilizing plate (441). Sliding grooves (444) are provided on the inner top wall and inner bottom wall of the load-bearing frame (41). The sliding blocks (443) and the sliding grooves (444) are adapted to each other. A fixing plate (442) is fixedly installed on the outer side of the stabilizing plate (441).

5. The excavator counterweight support assembly according to claim 3, characterized in that: An alarm (55) for alarm notification is also installed on the connecting plate (42), and the alarm (55) is connected to the pressure sensor (54) via signal connection.

6. The excavator counterweight support assembly according to claim 1, characterized in that: The counterweight beam (1) is provided with a guard plate A (11) and a guard plate B (13) on the outside. There are two sets of guard plates A (11), and the two sets of guard plates A (11) are placed on the outside of the counterweight beam (1). The inner walls of guard plates A (11) and guard plates B (13) are provided with wear-resistant layers (12).

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