Engineering vehicle ballast device with locking structure

Abstract

The utility model provides a kind of engineering vehicle counterweight device with locking structure, it is related to engineering vehicle counterweight technical field, including mounting seat, the counterweight seat is slidably connected on the mounting seat, multiple counterweight blocks are inserted in the inside of the counterweight seat, the locking mechanism of the counterweight block fixedly equipped on the counterweight seat, the locking mechanism includes sliding insertion rod sliding in the both sides of counterweight seat, the both sides of the counterweight block are equipped with the fixed insertion hole corresponding with sliding insertion rod, by the locking mechanism being set, the inside of fixed insertion hole is inserted by one end of sliding plate, counterweight block is stably installed in the inside of counterweight seat, prevent the damage of counterweight block from falling out from inside of counterweight seat when engineering vehicle appears to jolt or tilt, and the position of counterweight seat on mounting seat is adjusted under the action of driving mechanism, so as to adjust the position of multiple counterweight blocks on mounting seat to adjust the gravity position of vehicle overall, improve the stability and security in the process of engineering vehicle operation.

Description

Technical Field

[0001] This utility model relates to a counterweight device, specifically a counterweight device for engineering vehicles with a locking structure, belonging to the field of engineering vehicle counterweight technology. Background Technology

[0002] During the operation of engineering vehicles (such as cranes, excavators, forklifts, etc.), the counterweight device is a key component to ensure the stability and safety of the vehicle. Because engineering vehicles may bear uneven loads during lifting, transportation or operation, the center of gravity may shift. If there is no effective counterweight adjustment mechanism, it is easy to cause the vehicle to overturn, structural damage or even safety accidents. Therefore, the rational design of the counterweight device to dynamically adjust the center of gravity of the vehicle is the core requirement to improve the safety and efficiency of engineering vehicle operation.

[0003] Chinese Patent Publication No. CN204849887U discloses a counterweight device for an engineering vehicle, belonging to the field of engineering machinery technology. It includes an engineering vehicle platform 1 and a counterweight 2, the counterweight 2 being embedded and fixed in the rear housing of the engineering vehicle platform 2. This utility model has a simple structure, reduces costs, decreases the overall turning radius, lowers the center of gravity, improves heat dissipation, facilitates operation and maintenance, and enhances the aesthetics of the overall machine.

[0004] However, the inventor of the above-mentioned device believes that there are certain defects. In the actual operation of the engineering vehicle, the position and weight of the counterweight fixed at the rear of the engineering vehicle are already limited in the operation, making it inconvenient to adjust the position of the counterweight according to the load at the other end of the engineering vehicle, which affects the stability of the engineering vehicle during operation. Therefore, this utility model provides an engineering vehicle counterweight device with a locking structure. Summary of the Invention

[0005] (a) Technical problems to be solved The purpose of this invention is to provide a counterweight device for engineering vehicles with a locking structure to solve the above-mentioned problems, thereby addressing the issue in the prior art that it is inconvenient to adjust the position of the counterweight according to the load at the other end of the engineering vehicle, which affects the stability of the engineering vehicle during operation.

[0006] (II) Technical Solution This utility model is achieved through the following technical solution: a counterweight device for an engineering vehicle with a locking structure, including a mounting base, a counterweight seat slidably connected to the mounting base, multiple counterweight blocks inserted inside the counterweight seat, a locking mechanism for fixing the counterweight blocks on the counterweight seat, the locking mechanism including sliding rods sliding on both sides of the counterweight seat, fixing holes corresponding to the sliding rods on both sides of the counterweight blocks, a driving mechanism for controlling the sliding of the counterweight seat at the bottom of the counterweight seat, a sliding plate fixedly connected to the other end of the sliding rod, an L-shaped sliding rod fixedly connected to the sliding plate, a fixing plate fixedly connected to the mounting base, an extrusion groove on the fixing plate, and one end of the L-shaped sliding rod located inside the extrusion groove.

[0007] Preferably, both sides of the counterweight are fixedly connected to a fixing frame, the sliding plate is slidably connected inside the fixing frame, and the L-shaped slide rod slides on the fixing frame. The fixing frame supports the sliding plate to slide inside it.

[0008] Preferably, the extrusion groove consists of a groove and two horizontal grooves. The groove is located between the two horizontal grooves. When one end of the L-shaped slide rod slides into the groove of the extrusion groove, it pulls the sliding plate out from the inside of the fixed insertion hole. When one end of the L-shaped slide rod slides into the horizontal groove of the extrusion groove, it pushes the sliding plate into the fixed insertion hole.

[0009] Preferably, a fixed sliding rod is fixedly connected to the top of the mounting base, and a bottom sliding block is fixedly connected to the bottom of the counterweight base. The bottom sliding block is slidably connected to the fixed sliding rod, and the sliding trajectory of the counterweight base is restricted by the action of the bottom sliding block and the fixed sliding rod.

[0010] Preferably, the bottom of the bottom slider is rotatably connected to a movable wheel, which slides on the top of the mounting base to support the counterweight seat sliding on the mounting base.

[0011] Preferably, the counterweight base has multiple partitions fixedly connected inside, the partitions dividing the interior of the mounting base into multiple mounting slots, and the counterweight blocks are inserted into the interior of the mounting slots, so that the multiple counterweight blocks are installed separately under the action of the partitions.

[0012] Preferably, the driving mechanism includes a rotating rod rotatably connected to the bottom of the counterweight base, a driving gear fixedly connected to the rotating rod, and a fixed rack plate fixedly connected to the top of the mounting base. The driving gear meshes with the fixed rack plate and drives the rotating rod to rotate. Under the meshing action of the driving gear and the fixed rack plate, the entire counterweight base slides on the mounting base.

[0013] Preferably, the driving mechanism further includes a motor and a gearbox fixed to the bottom of the counterweight base. The rotating rod is rotatably connected inside the gearbox. The gearbox is equipped with a worm gear assembly that connects the motor output shaft and the rotating rod. A lifting ring is fixedly connected to the top of the counterweight block. The rotating rod is driven to rotate by starting the motor under the action of the worm gear assembly.

[0014] This utility model provides a counterweight device for engineering vehicles with a locking structure, which has the following beneficial effects: 1. This device, through a locking mechanism, allows one end of the sliding plate to be inserted into the fixed socket, stably installing the counterweight inside the counterweight seat. This prevents the counterweight from falling out of the counterweight seat and being damaged when the engineering vehicle bumps or tilts. Under the action of the drive mechanism, the counterweight seat slides on the mounting base, thereby adjusting the position of multiple counterweights on the mounting base to adjust the overall center of gravity of the vehicle, improving the stability and safety of the engineering vehicle during operation.

[0015] 2. The device drives the counterweight seat to slide on the mounting base via a drive mechanism. When the counterweight seat slides to the center of the mounting base, it pulls the L-shaped slide rod away from the fixed frame under the action of the compression groove, causing multiple sliding rods to slide on the outer surface of the counterweight seat. This allows one end of the sliding rod to be pulled out from one end of the fixed insertion hole, automatically releasing the locking and fixing effect on the counterweight block, making it easy to increase or decrease the number of counterweight blocks. Attached Figure Description

[0016] Figure 1 This is a perspective view of the entire utility model; Figure 2 This is a perspective view of the counterweight seat of this utility model; Figure 3 For the present utility model Figure 1 Enlarged view at point A; Figure 4 This is a perspective view of the bottom of the counterweight base of this utility model; Figure 5 This is a schematic diagram of the counterweight structure of this utility model.

[0017] [Explanation of Key Component Symbols] 1. Mounting base; 11. Fixed slide rod; 12. Fixed rack plate; 2. Counterweight base; 21. Partition plate; 22. Bottom slide block; 23. Moving wheel; 3. Counterweight block; 31. Fixed insertion hole; 32. Lifting ring; 4. Sliding insertion rod; 41. Sliding plate; 5. Fixing frame; 6. L-shaped slide rod; 7. Fixing plate; 71. Extrusion groove; 8. Rotating rod; 81. Gearbox; 82. Motor; 9. Drive gear. Detailed Implementation

[0018] This utility model embodiment provides a counterweight device for engineering vehicles with a locking structure. Example 1:

[0019] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A counterweight device for an engineering vehicle with a locking structure includes a mounting base 1, a counterweight seat 2 slidably connected to the mounting base 1, multiple counterweight blocks 3 inserted inside the counterweight seat 2, and multiple partitions 21 fixedly connected inside the counterweight seat 2. The partitions 21 divide the interior of the mounting base 1 into multiple mounting slots, and the counterweight blocks 3 are inserted into the mounting slots. The partitions 21 separate the multiple counterweight blocks 3 during installation. By driving the counterweight seat 2 to slide on the mounting base 1, the mounting base 1 is installed at one end of the engineering vehicle. By driving the counterweight seat 2 to slide on the mounting base 1, the position of the multiple counterweight blocks 3 on the mounting base 1 is adjusted to adjust the overall center of gravity of the vehicle.

[0020] Please refer to it again. Figure 1 , Figure 2 and Figure 3 The counterweight base 2 is provided with a locking mechanism for fixing the counterweight block 3. The locking mechanism includes a sliding rod 4 that slides on both sides of the counterweight base 2. The two sides of the counterweight block 3 are provided with fixing holes 31 corresponding to the sliding rod 4. The counterweight block 3 is stably installed inside the counterweight base 2 by inserting one end of the sliding rod 4 into the fixing hole 31.

[0021] Please refer to it again. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The other end of the sliding rod 4 is fixedly connected to a sliding plate 41, and an L-shaped sliding rod 6 is fixedly connected to the sliding plate 41. A fixing plate 7 is fixedly connected to the mounting base 1. The fixing plate 7 has an extrusion groove 71. One end of the L-shaped sliding rod 6 is located in the extrusion groove 71. The L-shaped sliding rod 6 is L-shaped. The extrusion groove 71 consists of a groove and two horizontal grooves. The groove is located in the middle of the two horizontal grooves. When one end of the L-shaped sliding rod 6 slides in the groove of the extrusion groove 71, it pulls the sliding plate 41 out from the inside of the fixing hole 31. When one end of the fixing frame 5 slides in the horizontal groove of the extrusion groove 71, it causes the L-shaped sliding rod 6 to slide towards the counterweight base 2, inserting the sliding plate 41 into the inside of the fixing hole 31, thus completing the automatic fixing of the counterweight block 3. Example 2:

[0022] Please refer to it again. Figure 1 , Figure 2 , Figure 3 and Figure 4The counterweight seat 2 has fixed frames 5 on both sides. The sliding plate 41 is slidably connected inside the fixed frame 5. The L-shaped sliding rod 6 slides on the fixed frame 5. Side sliding grooves are opened at both ends of the fixed frame 5. The two ends of the sliding plate 41 slide inside the side sliding grooves. The two ends of the sliding plate 41 are connected to the fixed frame 5 by springs. Under the action of the sliding plate 41, multiple sliding rods 4 slide together.

[0023] Please refer to it again. Figure 1 , Figure 2 , Figure 4 and Figure 5 The top of the mounting base 1 is fixedly connected to a fixed slide rod 11, and the bottom of the counterweight base 2 is fixedly connected to a bottom slide block 22. The bottom slide block 22 is slidably connected to the fixed slide rod 11, and the bottom of the bottom slide block 22 is rotatably connected to a movable wheel 23. The movable wheel 23 slides on the top of the mounting base 1. The sliding trajectory of the counterweight base 2 is limited by the bottom slide block 22 and the fixed slide rod 11, and the bottom of the counterweight base 2 is supported by the movable wheel 23, so that the counterweight base 2 can slide on the mounting base 1 as a whole. Example 3:

[0024] Please refer to it again. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The bottom of the counterweight seat 2 is provided with a drive mechanism for controlling the sliding of the counterweight seat 2. The drive mechanism includes a rotating rod 8 rotatably connected to the bottom of the counterweight seat 2, a drive gear 9 fixedly connected to the rotating rod 8, and a fixed rack plate 12 fixedly connected to the top of the mounting base 1. The drive gear 9 meshes with the fixed rack plate 12. By driving the rotating rod 8 to rotate at the bottom of the drive gear 9, the meshing action of the drive gear 9 and the fixed rack plate 12 drives the entire counterweight seat 2 to slide on the mounting base 1.

[0025] Please refer to it again. Figure 1 , Figure 2 and Figure 4 The drive mechanism also includes a motor 82 and a gearbox 81 fixed to the bottom of the counterweight 2. The rotating rod 8 is rotatably connected inside the gearbox 81. The gearbox 81 is equipped with a worm gear assembly that connects the output shaft of the motor 82 and the rotating rod 8. The worm gear assembly includes a worm wheel fixed to the outer surface of the rotating rod 8 and a worm fixed to the end of the output shaft of the motor 82. The worm wheel and the worm mesh with each other. The worm is driven to rotate by starting the motor 82. The meshing action of the worm wheel and the worm drives the rotating rod 8 to rotate. A lifting ring 32 is fixedly connected to the top of the counterweight 3. The lifting ring 32 facilitates the lifting of the counterweight 3 by lifting equipment.

[0026] Working principle: The mounting base 1 is installed on the engineering vehicle. The starting motor 82 drives the rotating rod 8 to rotate under the action of the worm gear assembly. The drive gear 9 and the fixed rack plate 12 drive the counterweight seat 2 to slide on the mounting base 1. The counterweight seat 2 is adjusted to the middle position of the mounting base 1. The counterweight block 3 is hoisted and installed in the mounting groove inside the counterweight seat 2 by the hoisting equipment. The number of counterweight blocks 3 installed is adjusted according to the usage requirements. After installation, the counterweight seat 2 is driven to slide on the mounting base 1, so that one end of the L-shaped slide rod 6 slides into the horizontal groove of the extrusion groove 71. Under the connection of the sliding plate 41, the sliding rod 4 is pushed to insert into the inside of the fixed insertion hole 31 to fix the counterweight seat 2 inside the counterweight block 3. By driving the counterweight seat 2 to slide on the mounting base 1, the position of multiple counterweight blocks 3 on the mounting base 1 is adjusted to adjust the overall center of gravity of the vehicle.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A counterweight device for an engineering vehicle with a locking structure, comprising a mounting base (1), characterized in that: A counterweight seat (2) is slidably connected to the mounting base (1). Multiple counterweight blocks (3) are inserted inside the counterweight seat (2). A locking mechanism for fixing the counterweight blocks (3) is provided on the counterweight seat (2). The locking mechanism includes sliding rods (4) that slide on both sides of the counterweight seat (2). Fixed insertion holes (31) corresponding to the sliding rods (4) are opened on both sides of the counterweight blocks (3). A driving mechanism for controlling the sliding of the counterweight seat (2) is provided at the bottom of the counterweight seat (2). The other end of the sliding rod (4) is fixedly connected to a sliding plate (41), and an L-shaped sliding rod (6) is fixedly connected to the sliding plate (41). A fixing plate (7) is fixedly connected to the mounting base (1), and an extrusion groove (71) is provided on the fixing plate (7). One end of the L-shaped sliding rod (6) is located inside the extrusion groove (71).

2. The engineering vehicle counterweight device with a locking structure according to claim 1, characterized in that: The counterweight seat (2) is fixedly connected to a fixed frame (5) on both sides. The sliding plate (41) is slidably connected inside the fixed frame (5). The L-shaped slide rod (6) slides on the fixed frame (5).

3. The engineering vehicle counterweight device with a locking structure according to claim 1, characterized in that: The extrusion groove (71) consists of a groove and two horizontal grooves, with the groove located between the two horizontal grooves.

4. The engineering vehicle counterweight device with a locking structure according to claim 1, characterized in that: The top of the mounting base (1) is fixedly connected to a fixed slide rod (11), and the bottom of the counterweight base (2) is fixedly connected to a bottom slide block (22), which is slidably connected to the fixed slide rod (11).

5. A counterweight device for an engineering vehicle with a locking structure according to claim 4, characterized in that: The bottom of the bottom slider (22) is rotatably connected to a movable wheel (23), which slides on the top of the mounting base (1).

6. The engineering vehicle counterweight device with a locking structure according to claim 1, characterized in that: The counterweight base (2) has multiple partitions (21) fixedly connected inside. The partitions (21) divide the interior of the mounting base (1) into multiple mounting slots. The counterweight block (3) is inserted into the interior of the mounting slot.

7. A counterweight device for an engineering vehicle with a locking structure according to claim 1, characterized in that: The driving mechanism includes a rotating rod (8) rotatably connected to the bottom of the counterweight (2), a driving gear (9) fixedly connected to the rotating rod (8), and a fixed rack plate (12) fixedly connected to the top of the mounting base (1). The driving gear (9) meshes with the fixed rack plate (12).

8. A counterweight device for an engineering vehicle with a locking structure according to claim 7, characterized in that: The drive mechanism also includes a motor (82) and a gearbox (81) fixed at the bottom of the counterweight (2). The rotating rod (8) is rotatably connected inside the gearbox (81). The gearbox (81) is provided with a worm gear assembly that connects the output shaft of the motor (82) and the rotating rod (8). The top of the counterweight (3) is fixedly connected with a lifting ring (32).

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