Crawler crane counterweight device

Abstract

The utility model relates to the technical field of crawler crane counterweight devices, and discloses a crawler crane counterweight device, which comprises a crawler crane body, a counterweight block and a counterweight frame, a protective assembly is arranged outside the counterweight frame, the protective assembly comprises a connecting plate, a bolt, a sliding block and an adaptive block, the connecting plate is connected with protective cotton through a telescopic spring, and the connecting plate is connected with the counterweight block through the bolt. The protective cotton is connected with a threaded block through a fixing block, through the arrangement of the protective assembly, after a worker completes the installation operation of the balancing weight in the counterweight frame, the fixing block is moved to the position above the threaded block through the tensile force of a telescopic spring, then the fixing block is fixed through a bolt, and in the process, the protective cotton is fixed to the position above the threaded block. The protective cotton starts to be unfolded and gradually covers the balancing weight in the counterweight frame completely, so that on one hand, the balancing weight can be prevented from being damaged due to accidental impact, and on the other hand, the balancing weight can be prevented from being eroded by environmental factors such as dust, moisture and corrosive gas to a certain extent.

Description

Technical Field

[0001] This utility model relates to the technical field of counterweight devices for crawler cranes, and in particular to a counterweight device for crawler cranes. Background Technology

[0002] Crawler cranes, widely used in large-scale engineering construction such as building, bridges, ports, and energy, offer advantages such as large lifting capacity and the ability to operate in complex terrain. They play a crucial role in the hoisting of large components and the installation of high-altitude equipment, efficiently completing vertical lifting and horizontal movement of heavy objects, making them an indispensable piece of equipment in modern engineering construction.

[0003] The applicant discovered through a search that a Chinese patent discloses "A Counterweight Device for a Tracked Crane," with publication number "CN214693000U." This patent mainly uses a counterweight component to facilitate the adjustment of the counterweight block's position, thereby facilitating the balance between the boom and the jib, ensuring the stability of the tracked crane's operation, and improving the practicality of the tracked crane's counterweight device. However, this patent cannot effectively protect the counterweight block. Therefore, in actual use, the counterweight block may be damaged due to accidental collisions. At the same time, environmental factors such as dust, moisture, and corrosive gases can also corrode the counterweight block. Therefore, we propose a counterweight device for a tracked crane. Utility Model Content

[0004] The purpose of this utility model is to provide a counterweight device for crawler cranes to solve the problem mentioned in the background art that the counterweight block cannot be effectively protected. In actual use, the counterweight block may be damaged due to accidental collisions. At the same time, environmental factors such as dust, moisture, and corrosive gases will also have an corrosive effect on the counterweight block.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tracked crane counterweight device, comprising a tracked crane body, a counterweight block, and a counterweight frame. The counterweight frame is provided with a protective component on its exterior. The protective component includes a connecting plate, bolts, a slider, and an adapter block. The connecting plate is connected to protective cotton through a telescopic spring, and the protective cotton is connected to a threaded block through a fixing block.

[0006] As a preferred embodiment, the connecting plate is fixedly installed on the front of the counterweight frame, and three sets of telescopic springs are provided. One end of each set of telescopic springs is fixedly connected to the surface of the connecting plate, and the other end of each set of telescopic springs is fixedly connected to one side of the protective cotton.

[0007] As a preferred embodiment, the other side of the protective cotton is fixedly connected to one side of the fixing block, the other side of the fixing block is fixedly connected to the circumferential surface of the threaded block, and the bolt is threadedly connected to the inner wall of the threaded block.

[0008] As a preferred embodiment, the adapter block is fixedly installed on the front of the counterweight frame, the adapter block is located below the threaded block, the bolt is threadedly connected to the inner wall of the adapter block, a sliding groove is provided on the upper part of the surface of the counterweight frame, the top of the protective cotton is fixedly connected to the slider, and the slider is slidably connected inside the sliding groove.

[0009] As a preferred embodiment, the counterweight is provided with a connecting component on its exterior. The connecting component includes a connecting block, a bolt, and a screw rod. The connecting block is fixedly installed on the top of the counterweight. Both the connecting block and the top of the counterweight frame are provided with insertion holes.

[0010] As a preferred embodiment, the plug is inserted into the inside of the socket, and a fixing bolt is rotatably connected to the bottom of the plug. The screw rod is threadedly connected to the end of the fixing bolt away from the plug. The bottom of the counterweight frame is provided with an installation groove adapted to the counterweight block. A threaded connector is fixedly installed on the bottom inner wall of the installation groove, and the bottom of the counterweight block is threadedly connected to the threaded connector.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. With the protective components in place, after the workers have completed the installation of the counterweight inside the counterweight frame, the fixing block is moved to the position above the threaded block by the tension of the telescopic spring, and then bolts are used to fix it. During this process, the protective cotton begins to unfold and gradually covers the counterweight inside the counterweight frame completely. This can prevent the counterweight from being damaged by accidental impact, and can also block environmental factors such as dust, moisture, and corrosive gases from corroding the counterweight to a certain extent.

[0013] 2. After the workers place the counterweight inside the counterweight frame using the set connection components, they use threaded connectors to fix the counterweight in the designated position inside the counterweight frame. Then, they use bolts to further stabilize its position. Finally, they use fixing bolts and screws to fix the position of the counterweight inside the counterweight frame. This ensures that it will not shift during operation and keeps the crawler crane body balanced when lifting heavy objects. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the protective component structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the connection component structure of this utility model.

[0018] In the diagram: 1. Tracked crane body; 2. Counterweight block; 3. Counterweight frame; 6. Mounting slot; 4. Protective components; 401. Connecting plate; 402. Telescopic spring; 403. Protective cotton; 404. Fixing block; 405. Threaded block; 406. Bolt; 407. Sliding block; 408. Adaptor block; 409. Slide groove; 5. Connecting components; 501. Connecting block; 502. Bolt; 503. Fixing bolt; 504. Screw rod; 505. Threaded connector; 506. Insertion hole. Detailed Implementation

[0019] 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.

[0020] Example 1:

[0021] Please see the appendix Figure 1 - Appendix Figure 3 A counterweight device for a crawler crane includes a crawler crane body 1, a counterweight block 2, and a counterweight frame 3. A protective component 4 is provided on the outside of the counterweight frame 3. The protective component 4 includes a connecting plate 401, bolts 406, a slider 407, and an adapter block 408. The connecting plate 401 is connected to a protective cotton 403 via a telescopic spring 402. The protective cotton 403 is connected to a threaded block 405 via a fixing block 404. The connecting plate 401 is fixedly installed on the front of the counterweight frame 3. Three sets of telescopic springs 402 are provided. One end of each set of three sets of telescopic springs 402 is fixedly connected to the surface of the connecting plate 401, and the other end of each set of three sets of telescopic springs is fixedly connected to... One side of the protective cotton 403 is fixedly connected, and the other side of the protective cotton 403 is fixedly connected to one side of the fixing block 404. The other side of the fixing block 404 is fixedly connected to the circumferential surface of the threaded block 405. The bolt 406 is threadedly connected to the inner wall of the threaded block 405. The adapter block 408 is fixedly installed on the front of the counterweight frame 3. The adapter block 408 is located below the threaded block 405. The bolt 406 is threadedly connected to the inner wall of the adapter block 408. A sliding groove 409 is provided at the upper part of the surface of the counterweight frame 3. The top of the protective cotton 403 is fixedly connected to the slider 407. The slider 407 is slidably connected to the inside of the sliding groove 409.

[0022] The inner wall of the adapter block 408 is provided with a threaded groove, and the bolt 406 is threadedly connected to the inner wall of the threaded groove. The protective cotton 403 can extend and retract synchronously with the telescopic spring 402. When the protective cotton 403 is not needed, the upper and lower surfaces of the slider 407 are provided with protrusions. These protrusions can not only slide in the slide groove 409, but also prevent the protective cotton 403 from falling off accidentally.

[0023] Specifically, through the protective component 4, after the staff completes the installation of the counterweight 2 inside the counterweight frame 3, the fixing block 404 is moved to the position above the threaded block 405 by the tension of the telescopic spring 402, and then fixed with bolts 406. During this process, the protective cotton 403 begins to unfold, gradually covering the counterweight 2 inside the counterweight frame 3 completely. This can prevent the counterweight 2 from being damaged by accidental impact, and can also block environmental factors such as dust, moisture, and corrosive gases from corroding the counterweight 2 to a certain extent.

[0024] Example 2:

[0025] Please see the appendix Figure 1 Appendix Figure 3 and appendix Figure 4 Furthermore, based on Embodiment 1, the counterweight 2 is provided with a connecting component 5 on its exterior. The connecting component 5 includes a connecting block 501, a plug 502, and a screw rod 504. The connecting block 501 is fixedly installed on the top of the counterweight 2. The top of both the connecting block 501 and the counterweight frame 3 are provided with a socket 506. The plug 502 is inserted into the socket 506. The bottom of the plug 502 is rotatably connected to a fixing plug 503. The screw rod 504 is threadedly connected to the end of the fixing plug 503 away from the plug 502. The bottom of the counterweight frame 3 is provided with a mounting groove 6 adapted to the counterweight 2. A threaded connector 505 is fixedly installed on the bottom inner wall of the mounting groove 6. The bottom of the counterweight 2 is threadedly connected to the threaded connector 505.

[0026] The bottom of the counterweight frame 3 has a threaded groove adapted to the screw rod 504. The fixing bolt 503 is threadedly connected to the bottom of the counterweight frame 3 through the screw rod 504, thereby fixing the counterweight block 2 inside the counterweight frame 3. A rotating rod is fixedly connected inside the fixing bolt 503 near the insertion bolt 502. The rotating rod is rotatably connected to the inner wall of the bottom of the insertion bolt 502, thus forming a rotatable connection relationship between the fixing bolt 503 and the bottom of the insertion bolt 502. The bottom of the counterweight block 2 has a threaded groove adapted to the threaded connector 505.

[0027] Specifically, through the set connection component 5, the operator places the counterweight 2 inside the counterweight frame 3, and then uses the threaded connector 505 to fix the counterweight 2 in the designated position inside the counterweight frame 3. Then, the position is further stabilized by the bolt 502, and the position of the counterweight 2 inside the counterweight frame 3 is finally fixed by the fixing bolt 503 and the screw rod 504. This ensures that it will not shift during operation, so that the crawler crane body 1 remains balanced during the lifting of heavy objects.

[0028] Working principle of this utility model: This utility model is a counterweight device for a crawler crane. First, the operator places the counterweight block 2 into the mounting groove 6 inside the counterweight frame 3. Then, the operator rotates the counterweight block 2 to initially fix it inside the counterweight frame 3. Next, the bolt 502 is inserted into the insertion hole 506. Then, the fixing bolt 503 is manually bent to make it fit tightly against the inner top wall of the counterweight frame 3. Finally, the fixing bolt 503 is fixed to the inner top wall of the counterweight frame 3 by the screw rod 504, completing the fixed installation operation of the counterweight block 2 inside the counterweight frame 3. Next, before the crawler crane body 1 is started, the operator manually holds the threaded block 405 and pulls it to the top of the adapter block 408. During this process, the telescopic spring 402 is in a stretched state, and the slider 407 slides inside the slide groove 409. The protective cotton 403 completely covers the counterweight block 2 inside the counterweight frame 3. Then, the operator uses the bolt 406 to thread the threaded block 405 and the adapter block 408 to complete the protection operation of the counterweight block 2. Finally, the operator begins to operate the crawler crane body 1.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A counterweight device for a crawler crane, comprising a crawler crane body (1), a counterweight block (2), and a counterweight frame (3), characterized in that: The counterweight frame (3) is provided with a protective component (4) on its exterior. The protective component (4) includes a connecting plate (401), bolts (406), sliders (407) and adapter blocks (408). The connecting plate (401) is connected to a protective cotton (403) via a telescopic spring (402). The protective cotton (403) is connected to a threaded block (405) via a fixing block (404).

2. The counterweight device for a crawler crane according to claim 1, characterized in that: The connecting plate (401) is fixedly installed on the front of the counterweight frame (3). Three sets of telescopic springs (402) are provided. One end of the three sets of telescopic springs (402) is fixedly connected to the surface of the connecting plate (401), and the other end of the three sets of telescopic springs (402) is fixedly connected to one side of the protective cotton (403).

3. The counterweight device for a crawler crane according to claim 2, characterized in that: The other side of the protective cotton (403) is fixedly connected to one side of the fixing block (404), and the other side of the fixing block (404) is fixedly connected to the circumferential surface of the threaded block (405). The bolt (406) is threadedly connected to the inner wall of the threaded block (405).

4. The counterweight device for a crawler crane according to claim 3, characterized in that: The adapter block (408) is fixedly installed on the front of the counterweight frame (3). The adapter block (408) is located below the threaded block (405). The bolt (406) is threadedly connected to the inner wall of the adapter block (408). A sliding groove (409) is provided on the upper part of the surface of the counterweight frame (3). The top of the protective cotton (403) is fixedly connected to the slider (407). The slider (407) is slidably connected to the inside of the sliding groove (409).

5. A counterweight device for a crawler crane according to claim 4, characterized in that: The counterweight (2) is provided with a connecting component (5) on its exterior. The connecting component (5) includes a connecting block (501), a plug (502), and a screw rod (504). The connecting block (501) is fixedly installed on the top of the counterweight (2). The top of the connecting block (501) and the counterweight frame (3) are both provided with a socket (506).

6. The counterweight device for a crawler crane according to claim 5, characterized in that: The plug (502) is inserted into the inside of the socket (506). The bottom of the plug (502) is rotatably connected to the fixing plug (503). The screw rod (504) is threadedly connected to the end of the fixing plug (503) away from the plug (502). The bottom of the counterweight frame (3) is provided with an installation groove (6) adapted to the counterweight block (2). A threaded connector (505) is fixedly installed on the bottom inner wall of the installation groove (6). The bottom of the counterweight block (2) is threadedly connected to the threaded connector (505).

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