A counterweight device for engineering vehicles that can be quickly loaded and unloaded

Abstract

This utility model discloses a counterweight device for engineering vehicles that can be quickly loaded and unloaded, relating to the field of engineering vehicle technology. It includes a main counterweight frame and a counterweight block. A U-shaped frame is fixedly connected to the bottom of the main counterweight frame. A DC motor is fixedly connected to the inner wall of the U-shaped frame. A control turntable is fixedly connected to the output shaft of the DC motor. A control cam is rotatably connected to the upper surface of the control turntable. The control cam is slidably connected in a guide groove opened in a restricted linkage ring. An L-shaped guide rod is fixedly connected to one side of the restricted linkage ring, and one end of the L-shaped guide rod is fixedly connected to the lower surface of the counterweight placement frame. This application, through the arrangement of the main counterweight frame, counterweight block, U-shaped frame, DC motor, control turntable, control cam, restricted linkage ring, and L-shaped guide rod, can adapt to different center of gravity changes, achieving stronger balance with less weight, replacing fixed redundancy with dynamic adjustment, and ultimately improving safety, economy, and operational flexibility.

Description

Technical Field

[0001] This utility model relates to the field of engineering vehicle technology, specifically a counterweight device for engineering vehicles that can be quickly loaded and unloaded. Background Technology

[0002] Construction vehicles are a backbone of construction projects, significantly accelerating progress and greatly reducing manpower requirements. They are used for transportation, excavation, emergency repairs, and even combat operations.

[0003] A search revealed a Chinese patent with publication number CN204849887U, which discloses a counterweight device for an engineering vehicle. The device includes an engineering vehicle platform and a counterweight, which is embedded and fixed within a rear housing of the platform. This invention features a simple structure, reduced costs, a smaller turning radius, a lower center of gravity, good heat dissipation, ease of operation and maintenance, and improved aesthetics.

[0004] While the above solutions can improve the overall aesthetics of the machine, the counterweight devices in the aforementioned patents are difficult to adapt to different changes in the center of gravity. The aforementioned patents use welding to install the counterweight, which is low in cost but not adjustable, and must be installed according to the maximum working conditions, resulting in overloaded counterweights in non-extreme working conditions, increasing fuel consumption and tire wear. Therefore, we provide a counterweight device for engineering vehicles that can be quickly installed and removed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a counterweight device for engineering vehicles that can be quickly loaded and unloaded, so as to solve the problems raised in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a counterweight device for engineering vehicles that can be quickly loaded and unloaded, comprising a counterweight main frame and a counterweight block. A U-shaped frame is fixedly connected to the bottom of the counterweight main frame, a DC motor is fixedly connected to the inner wall of the U-shaped frame, a control turntable is fixedly connected to the output shaft of the DC motor, a control cam is rotatably connected to the upper surface of the control turntable, the control cam is slidably connected in a guide groove opened in a restricted linkage ring, an L-shaped guide rod is fixedly connected to one side of the restricted linkage ring, and one end of the L-shaped guide rod is fixedly connected to the lower surface of the counterweight placement frame. The tight fit between the components can effectively adapt to different center of gravity changes.

[0007] Preferably, the inner wall of the counterweight mounting frame is fixedly connected with seven counterweight partition plates, which allow the counterweight blocks to be installed separately.

[0008] Preferably, the counterweight mounting frame is threaded with a positioning wing bolt, which is inserted into a pre-reserved groove in the counterweight block. The counterweight block is placed in the counterweight mounting frame, which can apply a preliminary limiting effect to the counterweight block, which is beneficial for subsequent reinforcement.

[0009] Preferably, a U-shaped limiting frame is fixedly connected to the top of the counterweight main frame, and an L-shaped guide rod is slidably connected to the inner wall of the U-shaped limiting frame. The L-shaped guide rod can drive the counterweight placement frame to move synchronously.

[0010] Preferably, the lower surface of the counterweight placement frame is fixedly connected with four supporting casters. The arrangement of the supporting casters ensures that the counterweight placement frame can move smoothly.

[0011] Preferably, the counterweight main frame is provided with a movable groove, and a supporting movable wheel is provided in the movable groove. The provision of the supporting movable wheel reduces the frictional resistance between the counterweight main frame and the counterweight placement frame.

[0012] Preferably, a mounting plate is fixedly connected to one side of the counterweight main frame, and the mounting plate has bolt through holes. The design of the bolt through holes facilitates subsequent quick loading and unloading operations.

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

[0014] 1. This application, through the setting of a counterweight main frame, counterweight block, U-shaped frame, DC motor, control turntable, control cam, restricted linkage ring, and L-shaped guide rod, can achieve the purpose of adapting to different center of gravity changes, achieve stronger balance ability with less weight, replace fixed redundancy with dynamic adjustment, and ultimately improve safety, economy and operational flexibility.

[0015] 2. This application, through the setting of counterweight placement frame, counterweight partition plate, positioning wing bolts, U-shaped limit frame, support moving wheels, moving slide, mounting plate, and bolt through holes, can install counterweight blocks in an appropriate amount according to the actual needs of the engineering vehicle, solving the problem of needing to install according to the maximum working condition requirements, and achieving the effect of quick loading and unloading. Attached Figure Description

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

[0017] Figure 2 This is a three-dimensional structural diagram of the main counterweight frame of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the restricted linkage ring of this utility model;

[0019] Figure 4This is a three-dimensional structural diagram of the internal structure of the counterweight placement frame of this utility model.

[0020] The following are labeled in the diagram: 1. Counterweight main frame; 2. Counterweight block; 3. U-shaped frame; 4. DC motor; 5. Control turntable; 6. Control cam; 7. Restricted linkage ring; 8. L-shaped guide rod; 9. Counterweight placement frame; 10. Counterweight partition plate; 11. Positioning butterfly bolt; 12. U-shaped limit frame; 13. Support caster; 14. Moving slide; 15. Mounting plate; 16. Bolt through hole. 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] This utility model provides a technical solution for a counterweight device for engineering vehicles that can be quickly loaded and unloaded.

[0023] Please see Figure 1 and Figure 2 The device includes a counterweight main frame 1 and a counterweight block 2. A mounting plate 15 is fixedly connected to one side of the counterweight main frame 1. The mounting plate 15 has bolt through holes 16. The purpose of setting the mounting plate 15 is mainly to install the counterweight device on the engineering vehicle. The design of the bolt through holes 16 makes it easy for workers to quickly install the device using bolts.

[0024] Please see Figure 1 and Figure 2 The counterweight main frame 1 is provided with a movable slide 14, and a support movable wheel 13 is provided in the movable slide 14. The purpose of providing the movable slide 14 is to apply a position control effect to the support movable wheel 13, so that the support movable wheel 13 can only move left and right in a specified direction and will not tilt.

[0025] Please see Figure 2 and Figure 3 The top of the counterweight main frame 1 is fixedly connected to a U-shaped limiting frame 12, and an L-shaped guide rod 8 is slidably connected to the inner wall of the U-shaped limiting frame 12. The purpose of setting the U-shaped limiting frame 12 is to effectively control the L-shaped guide rod 8, thereby ensuring the stability of the L-shaped guide rod 8 during movement and thus strengthening the stability between components.

[0026] Please see Figure 1 and Figure 3The bottom of the counterweight main frame 1 is fixedly connected to a U-shaped frame 3, and the inner wall of the U-shaped frame 3 is fixedly connected to a DC motor 4. The purpose of setting the U-shaped frame 3 is to provide an installation position for the DC motor 4 and to protect the bottom of the DC motor 4, thus solving the problem of foreign objects impacting the bottom of the DC motor 4 during the movement of the engineering vehicle.

[0027] Please see Figure 3 The output shaft of the DC motor 4 is fixedly connected to the control turntable 5. The purpose of setting the DC motor 4 is to provide sufficient power support for the rotation of the control turntable 5. The DC motor 4 is a known technology, and this application will not elaborate on the model of the DC motor 4.

[0028] Please see Figure 3 The upper surface of the control turntable 5 is rotatably connected to the control cam 6. The control turntable 5 will apply a control effect to the control cam 6 to ensure that the control cam 6 can rotate in place. The control cam 6 is slidably connected in the guide groove opened in the restricted linkage ring 7. The purpose of setting the control cam 6 is to reduce the frictional resistance between the components, so that the control cam 6 can slide more smoothly in the guide groove opened in the restricted linkage ring 7.

[0029] Please see Figure 1 and Figure 3 An L-shaped guide rod 8 is fixedly connected to one side of the restricted linkage ring 7. The restricted linkage ring 7 and the L-shaped guide rod 8 are integrated into one piece, and the two maintain a linkage effect. One end of the L-shaped guide rod 8 is fixedly connected to the lower surface of the counterweight placement frame 9. By changing the position of the L-shaped guide rod 8, a force is provided for the movement of the counterweight placement frame 9.

[0030] Please see Figure 1 The lower surface of the counterweight placement frame 9 is fixedly connected with four support wheels 13. The purpose of setting four support wheels 13 is to reduce the frictional resistance between the components, so that the counterweight placement frame 9 can move more stably and ensure the stability of the counterweight placement frame 9 during movement.

[0031] Please see Figure 1 and Figure 4 The counterweight mounting frame 9 is threadedly connected with a positioning wing bolt 11. The positioning wing bolt 11 is inserted into the groove reserved in the counterweight block 2. The purpose of setting the positioning wing bolt 11 is to effectively restrict the counterweight block 2 by cooperating with the internal thread of the counterweight mounting frame 9 and changing the position of the positioning wing bolt 11 itself, so as to ensure the stability of the counterweight block 2 and prevent the counterweight block 2 from falling off the counterweight mounting frame 9.

[0032] Please see Figure 1 and Figure 4 The counterweight 2 is placed inside the counterweight mounting frame 9. The inner wall of the counterweight mounting frame 9 is fixedly connected with a counterweight partition plate 10. There are seven counterweight partition plates 10 in total. The purpose of setting the counterweight partition plates 10 is to allow the counterweight 2 to be installed individually according to actual needs, which is beneficial for the subsequent loading and unloading of individual counterweight 2.

[0033] Working principle: In use, the mounting plate 15 is installed on the engineering vehicle by bolts passing through the bolt through-hole 16. At this time, the counterweight device is in a suspended state. Then, according to the actual counterweight requirements of the engineering vehicle, the counterweight block 2 is inserted flat into the counterweight mounting frame 9. By manually rotating the positioning wing bolt 11, the positioning wing bolt 11 is inserted into the reserved groove of the counterweight block 2, thus quickly completing the installation of the counterweight block 2. This counterweight increases the weight to counteract the overturning moment generated by the load of the engineering vehicle, preventing the vehicle from overturning or becoming unbalanced. Furthermore, by placing a single counterweight block 2, the need for multiple counterweight blocks is eliminated. The installation under maximum operating conditions leads to overload of the vehicle's counterweight under non-extreme conditions, increasing fuel consumption and tire wear. Finally, the DC motor 4 is started to work, driving the control turntable 5 to rotate, which changes the position of the control cam 6. The control cam 6 can drive the L-shaped guide rod 8 to slide within the U-shaped limit frame 12 through the restricted linkage ring 7, thereby changing the position of the counterweight mounting frame 9 through the L-shaped guide rod 8. This causes the position of the counterweight block 2 within the counterweight mounting frame 9 to change synchronously. This "position-for-weight" design solves the pain points of traditional counterweights being bulky and inefficient.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A counterweight device for engineering vehicles that can be quickly loaded and unloaded, comprising a main counterweight frame (1) and a counterweight block (2), characterized in that: The bottom of the counterweight main frame (1) is fixedly connected to a U-shaped frame (3), the inner wall of the U-shaped frame (3) is fixedly connected to a DC motor (4), the output shaft of the DC motor (4) is fixedly connected to a control turntable (5), the upper surface of the control turntable (5) is rotatably connected to a control cam (6), the control cam (6) is slidably connected in the guide groove opened in the restricted linkage ring (7), and an L-shaped guide rod (8) is fixedly connected to one side of the restricted linkage ring (7). One end of the L-shaped guide rod (8) is fixedly connected to the lower surface of the counterweight placement frame (9).

2. The quick-loading and unloading counterweight device for engineering vehicles according to claim 1, characterized in that: The inner wall of the counterweight placement frame (9) is fixedly connected with counterweight partition plates (10), and there are seven counterweight partition plates (10) in total.

3. The quick-loading and unloading counterweight device for engineering vehicles according to claim 1, characterized in that: The counterweight placement frame (9) is threaded with a positioning wing bolt (11), which is inserted into the groove reserved in the counterweight block (2), and the counterweight block (2) is placed in the counterweight placement frame (9).

4. The quick-loading and unloading counterweight device for engineering vehicles according to claim 1, characterized in that: The top of the counterweight main frame (1) is fixedly connected to a U-shaped limiting frame (12), and the inner wall of the U-shaped limiting frame (12) is slidably connected to an L-shaped guide rod (8).

5. The quick-loading and unloading counterweight device for engineering vehicles according to claim 1, characterized in that: The lower surface of the counterweight placement frame (9) is fixedly connected with four support wheels (13).

6. The quick-loading and unloading counterweight device for engineering vehicles according to claim 1, characterized in that: The counterweight main frame (1) is provided with a movable slide (14), and a supporting movable wheel (13) is provided in the movable slide (14).

7. The quick-loading and unloading counterweight device for engineering vehicles according to claim 1, characterized in that: The counterweight main frame (1) is fixedly connected to one side of a mounting plate (15), and the mounting plate (15) has bolt through holes (16).

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