Counterweight system and counterweight block

Abstract

The embodiment of the invention provides a balance weight system and a balance weight block, the balance weight system comprises a balance weight moving mechanism and a swing mechanism which are connected, and the swing mechanism drives the balance weight moving mechanism to rotate; the counterweight moving mechanism comprises a guide structure and a bearing seat, a first driving mechanism is arranged on the guide structure, the guide structure is provided with a guide rail, the bearing seat is connected with the guide rail, and the bearing seat bears a counterweight block; the first driving mechanism is connected with the bearing base and drives the bearing base to move in the length direction of the guide rail. A limiting block is arranged at the top of the balancing weight box body, a limiting spigot is formed in the position, corresponding to the limiting block, of the bottom of the box body, and the limiting block is matched with the containing groove of the limiting spigot so that the limiting block of one balancing weight can be inserted into the limiting spigot of the other balancing weight. According to the counterweight system, the gravity center of the engineering machinery can be flexibly and conveniently adjusted by combining rotation of the counterweight blocks and movement of the counterweight blocks on the guide rails, the counterweight blocks are convenient to combine, and the combined counterweight blocks are relatively stable on the counterweight system.

Description

Technical Field

[0001] The present application relates to the technical field of engineering machinery counterweights, and in particular to a counterweight system and a counterweight block. Background Art

[0002] When designing construction machinery, one issue that often needs to be considered is the stability of the whole machine. The stability of the whole machine requires that the center of gravity of the whole machine be projected within the support range of the construction machinery. Construction machinery usually has an actuator, such as the working arm of a rock drilling rig. The working range of the working arm affects the position of the center of gravity, thereby affecting the stability of the whole machine. To ensure the stability of the whole machine, one way is to increase the support range of the construction machinery, that is, to increase the outriggers, including the current horizontal outriggers and yaw outriggers. Another way is to increase the counterweight, and according to the mass of the added counterweight, the center of gravity of the whole machine is placed within a reasonable range.

[0003] For some construction machinery, the working range of the actuator varies greatly and the workload is different, which will also cause the center of gravity of the whole machine to vary greatly, so a larger counterweight is needed to ensure the stability of the center of gravity. However, construction machinery has strong mobility. When work is completed at one working position, it needs to be transferred to another working position. When the actuator is retracted, the center of gravity of the whole machine is on the side close to the counterweight due to the large counterweight. During the walking process, it will cause problems such as unstable center of gravity and rollover. The solution is to reduce the mass of the counterweight after the work is completed, so that the center of gravity of the whole machine is within a reasonable range, thus ensuring the safety of the construction machinery. However, there will be a problem that the counterweight is installed during work and the counterweight is removed during walking and transfer. The work is more cumbersome and the efficiency is low. Summary of the invention

[0004] The embodiments of the present application provide a counterweight system and a counterweight block, which are used to solve the technical problem that the existing engineering machinery has to install the counterweight when working and remove the counterweight when moving and transferring, which is complicated and inefficient.

[0005] In a first aspect, an embodiment of the present application provides a counterweight system, the system comprising a counterweight moving mechanism and a rotating mechanism, the counterweight moving mechanism is connected to the rotating mechanism, and the rotating mechanism is used to drive the counterweight moving mechanism to rotate;

[0006] The counterweight moving mechanism comprises a guide structure and a load-bearing seat, the guide structure is provided with a first driving mechanism, and the guide mechanism has a guide track, the load-bearing seat is connected to the guide track, and the load-bearing seat is used to carry the counterweight block;

[0007] The first driving mechanism is connected to the load-bearing seat, and is used to drive the load-bearing seat to move along the length direction of the guide track.

[0008] In a possible design, the load-bearing seat is provided with a sliding block, and the sliding block is slidably connected to the guide rail so that the load-bearing seat slides on the guide rail.

[0009] In a possible design, a plurality of limit seats are provided on the guide structure, and the plurality of limit seats are respectively provided on both sides of the moving direction of the load-bearing seat to limit the moving stroke of the load-bearing seat.

[0010] In a possible design, the first driving mechanism includes an oil cylinder, a piston rod of the oil cylinder is connected to the load-bearing seat, and the oil cylinder drives the piston rod to move to drive the load-bearing seat to move along the length direction of the guide track.

[0011] In a possible design, it is characterized in that the first driving mechanism also includes a stroke sensor, and the stroke sensor is used to detect the movement stroke of the load-bearing seat.

[0012] In a possible design, the slewing mechanism includes a second driving mechanism and a slewing support seat, and the counterweight moving mechanism is connected to the slewing support seat;

[0013] The second driving mechanism includes a driving motor and a reducer, the driving motor is connected to the reducer, the reducer is connected to the slewing support seat, and the second driving mechanism is configured such that the driving motor drives the reducer to rotate, and the rotation of the reducer drives the slewing support seat to rotate.

[0014] In a possible design, the slewing mechanism further includes an angle sensor, and the angle sensor is used to detect the rotation angle of the slewing support seat.

[0015] In a possible design, the system further includes an inclinometer, which is used to detect a tilt angle of the system relative to a horizontal plane.

[0016] In a second aspect, an embodiment of the present application provides a counterweight block, the counterweight block comprising a box body, the box body being filled with a counterweight material;

[0017] A limit block is provided on the top of the box body, and a limit stop is provided at the bottom of the box body at a corresponding position of the limit block. The limit block cooperates with the accommodating groove of the limit stop so that the limit block of one counterweight block can be inserted into the limit stop of another counterweight block.

[0018] In a possible design, a plurality of symmetrically arranged lifting ears are provided on the side of the box body, and a connecting piece is provided on the box body at the position of each lifting ear, and a bolt hole is provided on the connecting piece;

[0019] The connecting member is configured such that when a plurality of the counterweight blocks are stacked up and down and the limit block of the lower counterweight block is inserted into the limit stop of the upper counterweight block, bolts are passed through the corresponding bolt holes above and below to connect the plurality of counterweight blocks.

[0020] The counterweight system provided in the embodiment of the present application is installed on the engineering machinery. After the counterweight block is loaded on the bearing seat of the counterweight moving mechanism, when the center of gravity of the engineering machinery needs to be adjusted, not only can the counterweight block on the bearing seat be driven by the counterweight moving mechanism to move on the guide track to adjust the counterweight position, but the counterweight moving mechanism can also be driven to rotate by the slewing mechanism. By combining the movement of the counterweight block on the guide track and the rotation of the counterweight moving mechanism itself, the counterweight position of the engineering machinery can be flexibly adjusted, so that the engineering machinery with a large change in the center of mass of the whole machine can keep the center of gravity unchanged or change very little under different working conditions, so that the stability of the whole machine can be guaranteed, and the adjustment is convenient and efficient. When the engineering machinery needs to be transferred after the work is completed, the counterweight block and the counterweight moving system can be adjusted to the initial position to ensure the stability of the engineering machinery transfer. Due to the combination of the movement of the counterweight block on the guide track and the rotation of the counterweight moving mechanism itself, the counterweight position can be flexibly adjusted according to the working condition of the engineering machinery, and the system can use a smaller counterweight block mass.

[0021] The counterweight block provided in the embodiment of the present application has limit blocks and limit stops respectively arranged at corresponding positions on the top and bottom of the counterweight block, so that the accommodating grooves of the limit blocks and the limit stops cooperate with each other, so that when the counterweight blocks are stacked up and down, the limit block on the top of the lower counterweight block can be inserted into the limit stop on the bottom of the upper counterweight block, so that multiple counterweight blocks can be conveniently connected together and the stability of the counterweight system can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0023] Figure 1 A schematic diagram of a counterweight system provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the structure of the counterweight moving mechanism provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of a rotary mechanism provided in an embodiment of the present application;

[0026] Figure 4 A schematic diagram of a counterweight block provided in an embodiment of the present application;

[0027] Figure 5 A schematic diagram of filling a counterweight material provided in an embodiment of the present application;

[0028] Figure 6 A schematic diagram of stacking counterweight blocks provided in an embodiment of the present application up and down;

[0029] Figure 7 A schematic diagram of a counterweight placement basket provided in an embodiment of the present application;

[0030] Figure 8 A schematic diagram of the placement of double-row counterweight blocks provided in an embodiment of the present application;

[0031] Fig. 9 A schematic diagram of the placement of a single row of counterweight blocks provided in an embodiment of the present application;

[0032] Fig.10 This is a schematic diagram of the bolt connection of the counterweight block provided in an embodiment of the present application.

[0033] Reference numerals:

[0034] 100-counterweight moving mechanism;

[0035] 110-guide structure;

[0036] 120- load bearing seat;

[0037] 130- first driving mechanism;

[0038] 140-guide rail;

[0039] 150 - inclinometer;

[0040] 160-limited seat;

[0041] 170-slider;

[0042] 200-slewing mechanism;

[0043] 210- second driving mechanism;

[0044] 211-driving motor;

[0045] 212-reducer;

[0046] 220-slewing support seat;

[0047] 300-Basket for placing weights;

[0048] 310-limiting structure;

[0049] 400-Counterweight;

[0050] 410- cabinet;

[0051] 420-limit block;

[0052] 430-limit stop;

[0053] 440-lifting lug;

[0054] 450-weight material filling area;

[0055] 500-mounting base;

[0056] 600-connecting bolt;

[0057] 700-connector;

[0058] 710-bolt hole.

[0059] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0060] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0061] First, the nouns in the embodiments of the present application are explained:

[0062] Inclinometer: Inclinometer is an instrument used to measure the inclination angle of an object relative to the horizon. It is commonly used in geological exploration, construction, engineering surveying and other fields. There are many types of inclinometers, including electronic inclinometers, mechanical inclinometers and laser inclinometers.

[0063] Reducer: Reducer is a mechanical device used to reduce the output speed of the motor and increase the output torque. It achieves the conversion of speed and torque through gear transmission. Common types of reducers include gear reducers, worm gear reducers and planetary reducers.

[0064] The commonly used counterweight system for engineering machinery at present is to adjust the weight of the counterweight by changing the number or volume of the counterweight blocks. This counterweight system is more suitable for engineering machinery with a small range of center of gravity affected by the working range, but it cannot meet the requirements of equipment with a large center of gravity change affected by the working device. At the same time, by adding or reducing the counterweight blocks, the work is cumbersome and the efficiency is low. Therefore, a counterweight system that is easy to use and has low usage conditions is urgently needed. In view of the problems in the prior art, the technical concept of this application is:

[0065] A counterweight system is designed, which includes a counterweight moving mechanism and a slewing mechanism. The counterweight moving mechanism is connected to the slewing mechanism, and the slewing mechanism is used to drive the counterweight moving mechanism to rotate. The counterweight moving mechanism includes a guide structure and a load-bearing seat, the guide structure has a guide track, the load-bearing seat is connected to the guide track, and the load-bearing seat is used to carry the counterweight block. The function of the counterweight moving mechanism is to drive the load-bearing seat to move along the length direction of the guide track. By combining the rotation of the counterweight block and the movement on the guide track, the center of gravity of the engineering machinery can be flexibly adjusted.

[0066] A counterweight block is designed, and limit blocks and limit stops are respectively arranged at corresponding positions on the top and bottom of the counterweight block, so that the accommodating grooves of the limit blocks and the limit stops cooperate with each other, so that when the counterweight blocks are stacked up and down, the limit block on the top of the lower counterweight block can be inserted into the limit stop at the bottom of the upper counterweight block.

[0067] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0068] Embodiment 1

[0069] Figure 1 A schematic diagram of a counterweight system provided in an embodiment of the present application, such as Figure 1 As shown, the counterweight system includes a counterweight moving mechanism 100 and a slewing mechanism 200. The counterweight moving mechanism 100 is connected to the slewing mechanism 200. The slewing mechanism 200 is used to drive the counterweight moving mechanism 100 to rotate. The slewing mechanism 200 is installed on a mounting base 500 of an engineering machine that needs to adjust the center of gravity. The counterweight moving mechanism 100 is connected to a counterweight placement basket 300, and a counterweight block 400 is placed in the counterweight placement basket 300. The slewing mechanism 200 can realize its function in the following ways:

[0070] 1. Rotary motor: Directly use a rotary motor such as a servo motor or a stepper motor to drive the counterweight moving mechanism 100 to rotate. This method is suitable for applications that require precise control of the rotation angle and speed.

[0071] 2. Gear transmission system: The gear box transmits the rotational motion of the motor to the counterweight moving mechanism 100. Gear transmission can provide speed-up or speed-down functions and improve torque output.

[0072] 3. Worm gear mechanism: This mechanism can provide high torque output and self-locking function, suitable for applications that need to prevent reverse motion.

[0073] 4. Chain or belt drive: Power is transmitted from the motor to the counterweight moving mechanism 100 via a chain or belt, which is suitable for applications that require power to be transmitted within a certain distance.

[0074] 5. Rotary platform or turntable: Use a dedicated rotary platform or turntable to achieve rotary motion, usually for applications that require stable and precise rotation.

[0075] 6. Hydraulic or pneumatic rotary actuator: The rotary actuator is driven by a hydraulic or pneumatic system to achieve rotary motion, which is suitable for applications requiring high torque and simple control.

[0076] 7. Slewing bearing turntable bearing: Combining motor and slewing bearing, it can achieve large load and high precision rotation motion, and is often used in heavy machinery and equipment.

[0077] Figure 2 The schematic diagram of the structure of the counterweight moving mechanism provided in the embodiment of the present application is as follows: Figure 2 As shown, the counterweight moving mechanism 100 includes a guide structure 110 and a bearing seat 120. The guide structure 110 is provided with a first driving mechanism 130, and the guide structure 110 has a guide track 140. The bearing seat 120 is connected to the guide track 140, and the bearing seat 120 is used to carry the counterweight block 400.

[0078] The first driving mechanism 130 is connected to the load-bearing seat 120 , and is used to drive the load-bearing seat 120 to move along the length direction of the guide track 140 .

[0079] Figure 2 A possible implementation of the counterweight moving mechanism 100 is shown in FIG. Figure 2 As shown, the load-bearing seat 120 can be slidably connected to the guide track 140 through a slider 170, so that the load-bearing seat 120 can slide along the length direction of the guide track 140. A plurality of limit seats 160 can be provided on the guide structure 110, and the plurality of limit seats 160 are respectively provided on both sides of the moving direction of the load-bearing seat 120 to limit the moving stroke of the load-bearing seat 120.

[0080] The counterweight moving mechanism 100 can also be a mechanism with a telescopic rod. For example, the guide structure 110 can be a sleeve structure. The telescopic rod is placed in the sleeve structure, and the inner wall of the sleeve structure serves as the guide track 140. The telescopic rod is controlled by the first driving mechanism 130 to extend and retract so that the load-bearing seat 120 moves along the length direction of the guide track 140.

[0081] Figure 2 A possible implementation of the first driving mechanism 130 is shown in FIG. Figure 2The oil cylinder shown includes a piston rod connected to the bearing seat 120, and the oil cylinder drives the piston rod to move to drive the bearing seat 120 to move along the length direction of the guide track 140. Specifically, one end of the oil cylinder is connected to the guide structure 110 through a pin, and the piston rod is connected to the bearing seat 120 through a pin. The first driving mechanism 130 can also have other mechanisms to realize its function, such as a motor and gear transmission mechanism, a stepping motor, a servo motor, a pneumatic drive mechanism, a screw transmission mechanism, a chain transmission mechanism, etc.

[0082] refer to Figure 1 , Figure 2 , Figure 1 The counterweight placement basket 300 is placed on the load-bearing seat 120. To prevent the counterweight placement basket 300 from falling during the operation of the counterweight system, the counterweight placement basket 300 can be connected to the load-bearing seat 120 by multiple bolts, or by other detachable connection methods.

[0083] The working process of the counterweight system provided in the embodiment of the present application is described below.

[0084] After a certain engineering machinery is converted into the weight of the counterweight required by the counterweight system according to the change of the center of mass position of the required counterweight and the installation position of the counterweight system, a suitable counterweight placement basket 300 and a certain number of counterweight blocks 400 are selected according to the weight of the counterweight. After the counterweight placement basket 300 and the counterweight blocks 400 are determined, the counterweight system is installed on the installation base 500 of the engineering machinery counterweight system, and the counterweight placement basket 300 is placed on the load-bearing seat 120. After the installation is completed, after the counterweight moving mechanism 100 of the counterweight system is debugged to run normally, the counterweight blocks 400 determined in the early stage can be hoisted in the counterweight placement basket 300 one by one, and the installation of the counterweight blocks 400 is completed. After the counterweight blocks 400 are installed, the engineering machinery can be operated and debugged to verify the rationality of the selection of the counterweight blocks 400.

[0085] When the engineering machinery needs to work, the engineering machinery is adjusted to a horizontal state as a whole. At this time, according to the previous debugging results, the first driving mechanism 130 of the counterweight moving mechanism 100 can be controlled to push the bearing seat 120 to move a determined target distance on the guide track 140, and the slewing mechanism 200 is also in the initial state. When the engineering machinery starts to work, when it is detected that the engineering machinery has the risk of overturning, the first driving mechanism 130 of the counterweight moving mechanism 100 can be controlled to move, drive the bearing seat 120 to move on the guide track 140, and then change the position of the counterweight block 400 on the guide track 140, thereby changing the center of gravity position of the engineering machinery. At the same time, according to the deflection angle of the engineering machinery, it can be adjusted whether the slewing mechanism 200 drives the counterweight moving mechanism 100 to rotate to adjust the center of gravity of the engineering machinery. Through the combined control of the counterweight moving mechanism 100 and the slewing mechanism 200, the center of gravity of the counterweight can be made to fall on a certain fan-shaped surface, so that the center of gravity of the engineering machinery can be kept unchanged or changed very little under different working conditions, so that the stability of the whole machine can be further guaranteed.

[0086] When the construction machinery has finished its work and needs to be moved to another site, the counterweight moving mechanism 100 and the slewing mechanism 200 are adjusted to their initial positions to ensure the stability of the equipment during the transfer.

[0087] The counterweight system provided in the embodiment of the present application can also improve its automation by adding other sensors. A stroke sensor can be set in the first driving mechanism 130 to monitor the movement stroke of the bearing seat 120 in real time, for example, it can be realized by detecting the movement stroke of the cylinder piston rod through the stroke sensor; an inclinometer 150 can be set to detect the inclination angle of the counterweight system relative to the horizontal plane, and the inclinometer 150 can be set on the guide structure 110 of the counterweight moving mechanism 100; a pressure sensor can be set on the bearing seat 120 to detect the weight of the counterweight block 400; an angle sensor can be set in the slewing mechanism 200 to detect the rotation angle of the counterweight moving mechanism 100.

[0088] After adding the above-mentioned sensors, during the stage of placing the counterweight 400, when the pressure sensor of the load-bearing seat 120 detects whether the weight of the counterweight 400 reaches a predetermined mass; during the operation of the engineering machinery, the inclinometer 150 can detect the inclination angle of the engineering machinery relative to the horizontal plane, and then, according to the inclination angle, the moving distance of the counterweight 400 on the load-bearing seat 120 on the guide rail 140 and the rotation angle of the counterweight moving mechanism 100 can be determined, and then, when the first driving mechanism 130 drives the load-bearing seat 120 to move on the guide rail 140, the moving stroke of the load-bearing seat 120 can be detected by the stroke sensor, thereby accurately controlling the moving distance of the counterweight 400 on the load-bearing seat 120, and the rotation angle of the counterweight moving mechanism 100 can be detected by the above-mentioned angle sensor, thereby accurately controlling the rotation angle of the counterweight 400 on the load-bearing seat 120.

[0089] Embodiment 2

[0090] Figure 3 A schematic diagram of a rotary mechanism provided in an embodiment of the present application, such as Figure 3 As shown, the slewing mechanism 200 includes a second driving mechanism 210 and a slewing support seat 220, and the counterweight moving mechanism 100 is connected to the slewing support seat 220;

[0091] The second driving mechanism 210 includes a driving motor 211 and a reducer 212. The driving motor 211 is connected to the reducer 212, and the reducer 212 is connected to the slewing support seat 220. The second driving mechanism 210 is configured such that the driving motor 211 drives the reducer 212 to rotate, and the rotation of the reducer 212 drives the slewing support seat 220 to rotate.

[0092] Specifically, the swivel support seat 220 can be a turntable bearing, the reducer 212 is connected to the rotating part of the swivel support seat 220, the output end of the motor rotates to drive the reducer 212 to rotate, and the rotation of the reducer 212 drives the rotating part of the swivel support seat 220 to rotate. The top end of the rotating part of the swivel support seat 220 can be connected to the counterweight moving mechanism 100 in Example 1 by bolts, and the bottom end of the swivel support seat 220 is connected to the mounting base 500 by bolts, so that the configuration system is installed on the mounting base 500.

[0093] The swivel mechanism 200 may also be provided with an angle sensor, and the angle sensor detects the rotation angle of the swivel support seat 220 , and specifically, the rotation angle of the rotating component of the swivel support seat 220 .

[0094] The slewing mechanism 200 provided in this embodiment can realize large-load and high-precision rotational motion through the configuration of the reducer 212 and the turntable bearing. At the same time, the angle sensor can detect the rotation angle of the slewing support seat 220, and then accurately control the rotation angle of the counterweight moving mechanism 100, thereby improving the accuracy of the center of gravity adjustment.

[0095] Embodiment 3

[0096] Figure 4 This is a schematic diagram of a counterweight block provided in an embodiment of the present application. The counterweight block 400 can be applied to the counterweight system provided in the above-mentioned embodiment. Figure 4 As shown, the counterweight block 400 includes a box body 410, and the counterweight material is filled in the box body 410. Specifically, the box body 410 can be made of welded steel plates, and in actual manufacturing, the counterweight block 400 becomes a standard block with a fixed weight. Figure 5A schematic diagram of counterweight material filling is provided in an embodiment of the present application. A plurality of rectangular frames may be divided out on the inner side of the box body 410. The counterweight material filling area 450 within the rectangular frame may be filled with scraps, iron sand and other raw materials, thereby reducing the manufacturing cost of the counterweight block 400.

[0097] A limit block 420 is provided on the top of the box body 410, and a limit stop 430 is provided on the bottom of the box body 410 at a corresponding position of the limit block 420. The limit block 420 cooperates with the accommodating groove of the limit stop 430 so that the limit block 420 of one counterweight block 400 can be inserted into the limit stop 430 of another counterweight block 400. Figure 6 A schematic diagram of stacking counterweight blocks provided in an embodiment of the present application is shown in FIG. Figure 6 As shown, since the stop block 420 cooperates with the receiving groove of the stop stop 430, and the positions of the two correspond, when the counterweight blocks 400 are stacked up and down, the stop block 420 on the top of the lower counterweight block 400 can be inserted into the receiving groove of the stop stop 430 at the bottom of the upper counterweight block 400. Since the counterweight system provided by the embodiment of the present application has a counterweight moving mechanism 100 and a rotating mechanism 200 that can drive the counterweight block 400 to move, in order to prevent the counterweight block 400 from falling, the coordination design of the stop block 420 and the stop stop 430 can improve the stability of the counterweight block 400 when stacked up and down. Optionally, a plurality of stop blocks 420 and stop stop 430 can be provided on the box 410 of each counterweight block 400.

[0098] Figure 7 A schematic diagram of a weight placement basket provided in an embodiment of the present application, such as Figure 7 As shown, the bottom of the counterweight placement basket 300 may be provided with a plurality of limiting structures 310, the position of the limiting structures 310 corresponds to the position of the limiting stop 430 at the bottom of the counterweight block 400, and the appearance of the limiting structures 310 is consistent with the limiting block 420, so that when the counterweight block 400 is placed in the basket, the limiting structures 310 can be inserted into the limiting stop 430 at the bottom of the counterweight block 400, thereby stabilizing the position of the counterweight block 400 in the basket. In practical applications, the counterweight placement basket 300 may have different sizes to adapt to different counterweight block 400 placement methods. Figure 8 This is a schematic diagram of the placement of double-row counterweight blocks provided in an embodiment of the present application. Fig. 9 A schematic diagram of placing a single row of counterweight blocks provided in an embodiment of the present application is shown in FIG. Figure 8 , Fig. 9 As shown, the counterweight blocks 400 provided in the embodiment of the present application can be placed in at least double rows or single rows, and can also be placed in multiple rows such as three rows or four rows.

[0099] To facilitate the placement of the counterweight 400, Figure 4As shown, a plurality of symmetrically arranged lifting ears 440 are provided on the side of the box body 410. Through the lifting ears 440, the counterweight block 400 can be conveniently hoisted and placed in the counterweight placement basket 300, further improving the convenience of adjusting the center of gravity of the engineering machinery.

[0100] Considering that the counterweight system provided in the embodiment of the present application has a counterweight moving mechanism 100 and a rotating mechanism 200 that can drive the counterweight block 400 to move, in order to further improve the stability of the counterweight block 400 when stacked, as shown in FIG. Figure 4 As shown, the box body 410 is provided with a connecting piece 700 at the position of each lifting ear 440, and a bolt hole 710 is provided on the connecting piece 700;

[0101] The connecting member 700 is configured such that when multiple counterweight blocks 400 are stacked up and down and the limit block 420 of the lower counterweight block 400 is inserted into the limit stop 430 of the upper counterweight block 400, bolts are passed through the corresponding upper and lower bolt holes 710 to connect the multiple counterweight blocks 400.

[0102] Fig.10 The schematic diagram of the bolt connection of the counterweight block provided in the embodiment of the present application is as follows: Fig.10 As shown, when the counterweight blocks 400 are stacked up and down, on the one hand, the limit block 420 at the top of the lower counterweight block 400 can be inserted into the limit stop 430 at the bottom of the upper counterweight block 400, and on the other hand, the connecting bolts 600 can be used to pass through the bolt holes 710 corresponding to the counterweight blocks 400 stacked up and down, and the counterweight blocks 400 stacked up and down can be connected together by the connecting bolts 600. Through the design of the limit block 420, the limit stop 430, and the connecting member 700 of the counterweight block 400, the stability of the counterweight block 400 on the counterweight system provided in the embodiment of the present application can be improved. In addition, since the counterweight blocks 400 are connected together by the detachable connection methods such as the limit block 420 and the limit stop 430 plug-in and bolt connection, the connection and disassembly of the counterweight block 400 are relatively convenient.

[0103] It should be noted that the counterweight block 400 and the counterweight placement basket 300 provided in this embodiment can be applied not only to the counterweight system provided in the embodiment of the present application, but also to other types of counterweight devices for adjusting the center of gravity of equipment, and are also not limited to the application in the field of engineering machinery counterweight technology. For example, the counterweight block 400 can be miniaturized and applied to counterweight devices in other fields. The drawings of this application do not limit the appearance of the limit block 420, the limit stop 430, the connector 700, and the lifting lug 440 and the location of these components. For example, the lifting lug 440 can be designed to protrude from the side of the box body 410, rather than being arranged in a groove on the side of the box body 410 as shown in the drawings. The lifting lug 440 can be arranged on the same side of the box body 410 as the limit block 420 and the limit stop 430.

[0104] Finally, it should be noted that those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art not disclosed by the present invention, are not limited to the precise structure described above and shown in the drawings, and may be modified and changed in various ways without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A counterweight system, characterized in that: The system comprises a counterweight moving mechanism (100) and a rotating mechanism (200), wherein the counterweight moving mechanism (100) is connected to the rotating mechanism (200), and the rotating mechanism (200) is used to drive the counterweight moving mechanism (100) to rotate; The counterweight moving mechanism (100) comprises a guide structure (110) and a load-bearing seat (120); the guide structure (110) is provided with a first driving mechanism (130); the guide structure (110) has a guide track (140); the load-bearing seat (120) is connected to the guide track (140); and the load-bearing seat (120) is used to bear a counterweight block (400); The first driving mechanism (130) is connected to the load-bearing seat (120), and the first driving mechanism (130) is used to drive the load-bearing seat (120) to move along the length direction of the guide track (140).

2. The counterweight system according to claim 1, characterized in that: The load-bearing seat (120) is provided with a sliding block (170), and the sliding block (170) is slidably connected to the guide rail (140) so that the load-bearing seat (120) slides on the guide rail (140).

3. The counterweight system according to claim 2, characterized in that: The guide structure (110) is provided with a plurality of limit seats (160), and the plurality of limit seats (160) are respectively arranged on both sides of the moving direction of the load-bearing seat (120) to limit the moving stroke of the load-bearing seat (120).

4. The counterweight system according to claim 1, characterized in that: The first driving mechanism (130) comprises an oil cylinder, a piston rod of which is connected to the load-bearing seat (120), and the oil cylinder drives the piston rod to move so as to drive the load-bearing seat (120) to move along the length direction of the guide track (140).

5. The counterweight system according to claim 1, characterized in that: The first driving mechanism (130) further comprises a travel sensor, and the travel sensor is used to detect the movement travel of the load-bearing seat (120).

6. The counterweight system according to claim 1, characterized in that: The slewing mechanism (200) comprises a second driving mechanism (210) and a slewing support seat (220), and the counterweight moving mechanism (100) is connected to the slewing support seat (220); The second driving mechanism (210) comprises a driving motor (211) and a reducer (212); the driving motor (211) is connected to the reducer (212); the reducer (212) is connected to the slewing support seat (220); the second driving mechanism (210) is configured such that the driving motor (211) drives the reducer (212) to rotate, and the rotation of the reducer (212) drives the slewing support seat (220) to rotate.

7. The counterweight system according to claim 6, characterized in that: The slewing mechanism (200) further comprises an angle sensor, wherein the angle sensor is used to detect the rotation angle of the slewing support seat (220).

8. The counterweight system according to claim 1, characterized in that: The system further comprises an inclinometer (150), wherein the inclinometer (150) is used to detect the inclination angle of the system relative to a horizontal plane.

9. A counterweight, characterized in that: The counterweight block (400) comprises a box body (410), and the box body (410) is filled with counterweight material; A limit block (420) is provided on the top of the box body (410), and a limit stop (430) is provided on the bottom of the box body (410) at a position corresponding to the limit block (420). The limit block (420) cooperates with a receiving groove of the limit stop (430) so that the limit block (420) of one counterweight block (400) can be inserted into the limit stop (430) of another counterweight block (400).

10. The counterweight according to claim 9, characterized in that: A plurality of symmetrically arranged lifting ears (440) are provided on the side of the box body (410); a connecting piece (700) is provided on the box body (410) at the position of each lifting ear (440); and a bolt hole (710) is provided on the connecting piece (700); The connecting member (700) is configured such that when a plurality of the counterweight blocks (400) are stacked up and down and the limit block (420) of the lower counterweight block (400) is inserted into the limit stop (430) of the upper counterweight block (400), bolts are passed through the corresponding bolt holes (710) to connect the plurality of counterweight blocks (400).

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