Excavator counterweight

Abstract

The utility model relates to the technical field of counterweight equipment, in particular to an excavator counterweight, which is characterized in that when a counterweight block is mounted, only a switch door needs to be opened, the counterweight block is placed on the surface of a placing plate, and the bottom of a base is in embedded sliding connection with a limiting chute, so that the moving track of the counterweight block is limited; the surface of the bottom of the base is attached to the surface of the rolling wheel, so that the balancing weight can conveniently move and enter a proper position of the weight box, then the balancing weight is fixed to a containing plate through a fixing bolt, then a rotating hand wheel is adjusted, an embedding block and a positioning groove are fixedly connected in an embedded mode, and then the rotating hand wheel is fixed through a fixing plug pin; therefore, positioning and mounting of the balancing weight are completed, and the whole process is simple. A plurality of buffer springs are arranged on the two side faces of each balancing weight, and buffer plates are installed on the surfaces of the buffer springs, so that damage caused by collision between the two balancing weights can be reduced.

Description

Technical Field

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

[0002] An excavator, also known as a digging machine or a soil 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 into 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 construction machines. The three most important parameters of an excavator are operating weight, engine power, and bucket capacity. As for digging force, it is mainly divided into boom digging force and bucket digging force. The point of application for both digging forces is the root of the bucket teeth and the lip of the bucket, but the power sources are different. The boom digging force comes from the boom cylinder, while the bucket digging force comes from the bucket cylinder.

[0003] However, in the current market, the counterweights on excavators are not easy to remove during use, making it difficult to control the counterweights. This causes inconvenience to users, wastes a lot of counterweight resources, and also wastes a lot of time disassembling the counterweights. Utility Model Content

[0004] The purpose of this invention is to provide a counterweight for excavators to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a counterweight for an excavator, comprising a mounting base plate, a placement plate, a counterweight box, and a counterweight block. The placement plate is mounted on the top of the mounting base plate. The placement plate has symmetrically arranged mounting grooves on both sides of its top. Several rolling wheels are evenly installed inside the mounting grooves. The counterweight box is mounted on one side of the top of the mounting base plate. Several threaded sleeves are mounted on the outer surface of the counterweight box. A rotating screw is threadedly connected to the threaded sleeves. One end of the rotating screw is connected to a rotating handwheel. The other end of the rotating screw is connected to a fitting block inside the counterweight box via a bearing. A base is provided on the top of the placement plate inside the counterweight box. A counterweight block is mounted on the top of the base. Several buffer springs are arranged on both sides of the counterweight block. Buffer plates are mounted on the surfaces of the buffer springs. A top cover is mounted on the top of the counterweight box, and a handle is mounted on the top of the top cover.

[0006] Preferably, a limiting groove is formed in the middle of the surface of the placement plate, the bottom of the base is engaged and slidably connected with the limiting groove, and the bottom surface of the base is in contact with the surface of the rolling wheel.

[0007] Preferably, the placement plate has several fixing holes evenly distributed on both sides of its top, and the placement plate is fixedly connected to the fixing holes by fixing bolts.

[0008] Preferably, the counterweight has a positioning groove on its side, and the fitting block is fitted and fixedly connected to the positioning groove.

[0009] Preferably, a mounting rail is provided on one side of the counterweight box, and a switch door is installed inside the mounting rail.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: When installing the counterweight, simply open the switch door and place the counterweight on the surface of the placement plate. The bottom of the base engages with the limiting groove for sliding connection, thereby limiting the movement trajectory of the counterweight. The bottom surface of the base is in contact with the surface of the rolling wheel, facilitating the movement of the counterweight into the appropriate position in the counterweight box. The counterweight is then fixed to the placement plate with fixing bolts. Subsequently, the rotating handwheel is adjusted to engage and fix the engagement block with the positioning groove. The rotating handwheel is then fixed with a fixing pin, thus completing the positioning and installation of the counterweight. The entire process is simple, making it easy to adjust the counterweight inside the box, which is convenient for users and makes reasonable use of the counterweight. By setting several buffer springs on both sides of the counterweight, and installing buffer plates on the surface of the buffer springs, damage caused by collision between the two counterweights can be reduced. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of the counterweight box of this utility model.

[0013] In the diagram: 1. Mounting base plate; 2. Placement plate; 3. Counterweight box; 4. Counterweight block; 5. Limiting slide groove; 6. Mounting groove; 7. Rolling wheel; 8. Fixing hole; 9. Mounting slide rail; 10. Opening / closing door; 11. Threaded sleeve; 12. Rotating lead screw; 13. Top cover; 14. Rotating handwheel; 15. Positioning hole; 16. Fixing pin; 17. Fitting block; 18. Positioning groove; 19. Buffer spring; 20. Buffer plate; 21. Fixing bolt; 22. Base; 23. Handle. Detailed Implementation

[0014] 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.

[0015] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0017] Please see Figure 1-2 This utility model provides a technical solution: an excavator counterweight, including a mounting base plate 1, a placement plate 2, a counterweight box 3, and a counterweight block 4. The placement plate 2 is mounted on the top of the mounting base plate 1. The placement plate 2 has symmetrical mounting grooves 6 on both sides of its top. Several rolling wheels 7 are evenly installed inside the mounting grooves 6. The counterweight box 3 is mounted on one side of the top of the mounting base plate 1. Several threaded sleeves 11 are mounted on the outer surface of the counterweight box 3. A rotating screw 12 is threadedly connected to the threaded sleeve 11. One end of the rotating screw 12 is connected to a rotating handwheel 14. The other end of the rotating screw 12 is connected to a fitting block 17 inside the counterweight box 3 via a bearing. A base 22 is set on the top of the placement plate 2 inside the counterweight box 3. The counterweight block 4 is set on the top of the base 22. Several buffer springs 19 are set on both sides of the counterweight block 4. Buffer plates 20 are mounted on the surface of the buffer springs 19. A top cover 13 is mounted on the top of the counterweight box 3. A handle 23 is mounted on the top of the top cover 13.

[0018] Furthermore, a limiting groove 5 is provided in the middle of the surface of the placement plate 2, and the bottom of the base 22 is engaged and slidably connected with the limiting groove 5, and the bottom surface of the base 22 is in contact with the surface of the rolling wheel 7.

[0019] Furthermore, several fixing holes 15 are evenly provided on both sides of the top of the placement plate 2, and the placement plate 2 is fixedly connected to the fixing holes 15 by fixing bolts 21.

[0020] Furthermore, the counterweight 4 has a positioning groove 18 on its side, and the fitting block 17 is fitted and fixedly connected with the positioning groove 18.

[0021] Furthermore, a mounting rail 9 is provided on one side of the counterweight box 3, and an opening and closing door 10 is installed inside the mounting rail 9.

[0022] When installing the counterweight, this utility model only requires opening the switch door 10 and placing the counterweight 4 on the surface of the placement plate 2. The bottom of the base 22 is engaged and slidably connected with the limiting slide groove 5, thereby limiting the movement trajectory of the counterweight 4. The bottom surface of the base 22 is in contact with the surface of the rolling wheel 7, which facilitates the movement of the counterweight 4 into the appropriate position of the counterweight box 3. The counterweight 4 is then fixed to the placement plate 2 by the fixing bolt 21. Then, the rotating handwheel 14 is adjusted to engage and fix the fitting block 17 with the positioning groove 18. The rotating handwheel 14 is then fixed by the fixing pin 16, thus completing the positioning and installation of the counterweight 4. The whole process is simple, so it is convenient to adjust the counterweight 4 inside the box, which is convenient for the user and makes reasonable use of the counterweight 4. By setting several buffer springs 19 on both sides of the counterweight 4, and installing buffer plates 20 on the surface of the buffer springs 19, damage caused by collision between the two counterweights 4 can be reduced.

[0023] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A counterweight for an excavator, comprising a mounting base plate (1), a placement plate (2), a counterweight box (3), and a counterweight block (4), characterized in that: The mounting base plate (1) is topped with a placement plate (2). The placement plate (2) has symmetrical mounting grooves (6) on both sides of its top. Several rolling wheels (7) are evenly installed inside the mounting grooves (6). A counterweight box (3) is mounted on one side of the top of the mounting base plate (1). Several threaded sleeves (11) are mounted on the outer surface of the counterweight box (3). A rotating screw (12) is threaded into the threaded sleeve (11). One end of the rotating screw (12) is connected to a rotating handwheel (14). The other end of the lead screw (12) is connected to the fitting block (17) inside the counterweight box (3) via a bearing. The top of the placement plate (2) is provided with a base (22) inside the counterweight box (3). The top of the base (22) is provided with a counterweight block (4). Several buffer springs (19) are provided on both sides of the counterweight block (4). A buffer plate (20) is installed on the surface of the buffer springs (19). The top of the counterweight box (3) is provided with a top cover (13). A handle (23) is installed on the top of the top cover (13).

2. The excavator counterweight according to claim 1, characterized in that: The placement plate (2) has a limiting groove (5) in the middle of its surface. The bottom of the base (22) is fitted and slidably connected with the limiting groove (5). The bottom surface of the base (22) is in contact with the surface of the rolling wheel (7).

3. The excavator counterweight according to claim 1, characterized in that: The placement plate (2) has several fixing holes (15) evenly distributed on both sides of its top. The placement plate (2) is fixedly connected to the fixing holes (15) by fixing bolts (21).

4. The excavator counterweight according to claim 1, characterized in that: The counterweight (4) has a positioning groove (18) on its side, and the fitting block (17) is fitted and fixedly connected to the positioning groove (18).

5. The excavator counterweight according to claim 1, characterized in that: The counterweight box (3) is provided with a mounting rail (9) on one side, and a door (10) is installed inside the mounting rail (9).

Images