Crawler crane
By decomposing and combining the crawler crane into a combined vehicle crawler truck and counterweight crawler truck, the problems of high cost and low usage frequency of super-large tonnage crawler cranes are solved, and higher load capacity and flexibility are achieved, equipment costs are reduced, and equipment costs are reduced. Stability requirements for minimizing construction area.
Patent Information
- Application Number
- CN202420341523.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-02-23
AI Technical Summary
The cost of ultra-large tonnage crawler cranes is high and the frequency of use is low, resulting in an increase in the idle rate of equipment and the counterweight cannot be off the ground when lifting the weight, which affects the flexibility and convenience of use of equipment.
By decomposing and combining the two crawler cranes into a combined vehicle crawler and a counterweight crawler, the wheel pitch and lifting capacity of the combined vehicle crawler can be increased, so that the counterweight crawler can achieve counterweight off the ground and walk with the combined vehicle crawler truck. , reduce costs and improve equipment utilization.
It achieves higher loading capacity and flexibility, reduces equipment costs, improves the frequency and convenience of equipment, and meets the stability requirements of minimizing construction areas.
Smart Images
Figure CN222272210U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lifting equipment, in particular to a crawler crane. Background Art
[0002] The use of super-large tonnage crawler cranes is often limited to a few large-scale working conditions, and the frequency of use in actual work is not high. In addition, the cost of super-large tonnage crawler cranes is relatively high, and the requirements for ground, assembly and safety are also high. At the same time, as the construction progresses, the construction area is getting smaller and smaller, and the construction scope of super-large tonnage crawler cranes is limited, resulting in an increase in the idle rate of equipment.
[0003] In addition, this type of crawler crane can only lift the rear counterweight off the ground and move with the front vehicle when the hook lifts a large load. Once the heavy object falls to the ground, the super-lifted counterweight must also fall to the ground. At this time, in order to move the entire vehicle, the rear counterweight must be removed and transported, which is extremely inconvenient to use. Utility Model Content
[0004] The utility model provides a crawler crane, which is used to solve the defects of high cost and high idle rate of super-large tonnage crawler cranes in the prior art.
[0005] The utility model provides a crawler crane, which is composed of a first crawler crane and a second crawler crane, and comprises:
[0006] The combined crawler vehicle comprises a first crawler front frame and a first crawler rear frame;
[0007] A counterweight crawler vehicle, comprising a second crawler front frame and a second crawler rear frame;
[0008] The first crawler front frame and the second crawler rear frame are decomposed from the first crawler crane, the length of the first crawler front frame is greater than the length of the second crawler rear frame, and the length of the first crawler front frame is greater than the length of the second crawler front frame;
[0009] The second crawler front frame and the first crawler rear frame are decomposed from the second crawler crane, the first crawler rear frame is longer than the second crawler front frame, and the first crawler rear frame is longer than the second crawler rear frame.
[0010] According to the crawler crane provided by the utility model, a first reducer is provided in both the first crawler front frame and the first crawler rear frame, a second reducer is provided in both the second crawler front frame and the second crawler rear frame, and the torque of the first reducer is greater than that of the second reducer.
[0011] According to the crawler crane provided by the utility model, the track gauge of the combined crawler vehicle is greater than the track gauge of the counterweight crawler vehicle.
[0012] According to the crawler crane provided by the utility model, the track gauge of the counterweight crawler vehicle is the same as the track gauge of the first crawler crane and / or the second crawler crane.
[0013] According to the crawler crane provided by the utility model, the combined crawler vehicle includes a first chassis, the first chassis includes a first front crossbeam and a first rear crossbeam, both ends of the first front crossbeam are connected to the first crawler front frame, both ends of the first rear crossbeam are connected to the first crawler rear frame, and a slewing bearing is arranged between the first front crossbeam and the first rear crossbeam.
[0014] According to the crawler crane provided by the utility model, the first chassis also includes a first longitudinal beam and a second longitudinal beam, the first longitudinal beam and the second longitudinal beam are respectively arranged on both sides of the slewing bearing, and the two ends of the first longitudinal beam and the second longitudinal beam are respectively connected to the first front cross beam and the first rear cross beam.
[0015] According to the crawler crane provided by the utility model, the counterweight crawler vehicle comprises a second chassis, and a counterweight tray is arranged on the second chassis.
[0016] According to the crawler crane provided by the utility model, the second chassis includes a second front crossbeam and a second rear crossbeam, both ends of the second front crossbeam are connected to the second crawler front frame, both ends of the second rear crossbeam are connected to the second crawler rear frame, and the length of the second front crossbeam is smaller than that of the first front crossbeam.
[0017] According to the crawler crane provided by the utility model, a plurality of load-bearing grooves are evenly distributed on the counterweight tray.
[0018] According to the crawler crane provided by the utility model, the first crawler front frame and the first crawler rear frame are both provided with a first crossbeam connecting structure, and the ends of the first front crossbeam and the first rear crossbeam are connected to the first crossbeam connecting structure;
[0019] The second crawler front frame and the second crawler rear frame are both provided with a second crossbeam connecting structure, and the ends of the second front crossbeam and the second rear crossbeam are connected to the second crossbeam connecting structure.
[0020] The utility model provides a crawler crane, which is composed of a first crawler crane and a second crawler crane, and comprises a combined crawler vehicle and a counterweight crawler vehicle. The crawler frame of the combined crawler vehicle is formed by combining a longer first crawler front frame in the first crawler crane and a longer first crawler rear frame in the second crawler crane, and the crawler frame of the counterweight crawler vehicle is formed by combining a shorter second crawler rear frame in the first crawler crane and a shorter second crawler front frame in the second crawler crane, thereby increasing the wheelbase and the hoisting capacity of the combined crawler vehicle, and the counterweight crawler vehicle can realize the counterweight off the ground and travel with the combined crawler vehicle, thereby improving the flexibility and the utilization rate of the equipment and reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 It is a structural schematic diagram of a crawler crane provided by an embodiment of the utility model;
[0023] Figure 2 It is a structural schematic diagram of a combined crawler vehicle provided by an embodiment of the utility model;
[0024] Figure 3 It is a side view of a combined crawler vehicle provided by an embodiment of the utility model;
[0025] Figure 4 It is a structural schematic diagram of a counterweight tracked vehicle provided in an embodiment of the utility model.
[0026] Reference numerals:
[0027] 1. Combined crawler vehicle; 11. First crawler front frame; 12. First crawler rear frame; 13. First reducer; 14. First front crossbeam; 15. First rear crossbeam; 16. First longitudinal beam; 17. Second longitudinal beam;
[0028] 2. Counterweight crawler vehicle; 21. Second crawler front frame; 22. Second crawler rear frame; 23. Second speed reducer; 24. Pallet.
[0029] 3. Crane arm. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] Combine the following Figures 1 to 4 A crawler crane provided in an embodiment of the utility model is described.
[0032] The crawler crane provided in this embodiment is formed by disassembling and assembling a first crawler crane and a second crawler crane, and includes: a combined crawler vehicle 1 and a counterweight crawler vehicle 2.
[0033] The combined crawler vehicle 1 comprises a first crawler front frame 11 and a first crawler rear frame 12 , and the counterweight crawler vehicle 2 comprises a second crawler front frame 21 and a second crawler rear frame 22 .
[0034] The first crawler front frame 11 and the second crawler rear frame 22 are decomposed from the first crawler crane, the length of the first crawler front frame 11 is greater than the length of the second crawler rear frame 22 , and the length of the first crawler front frame 11 is greater than the length of the second crawler front frame 21 .
[0035] The second crawler front frame 21 and the first crawler rear frame 12 are decomposed from the second crawler crane. The length of the first crawler rear frame 12 is greater than that of the second crawler front frame 21 , and the length of the first crawler rear frame 12 is greater than that of the second crawler rear frame 22 .
[0036] That is to say, the lengths of the first crawler front frame 11 and the second crawler rear frame 22 constituting the first crawler crane are different, and the lengths of the second crawler front frame 21 and the first crawler rear frame 12 constituting the second crawler crane are also different. When the two crawler cranes are disassembled and assembled into the combined crawler vehicle 1 and the counterweight crawler vehicle 2 of the utility model, the longer first crawler front frame 11 of the first crawler crane and the longer first crawler rear frame 12 of the second crawler crane form the crawler frame of the combined crawler vehicle 1, and the shorter second crawler rear frame 22 of the first crawler crane and the shorter second crawler front frame 21 of the second crawler crane form the crawler frame of the counterweight crawler vehicle 2, thereby increasing the wheelbase and lifting capacity of the combined crawler vehicle 1, and the counterweight crawler vehicle 2 can realize the counterweight off the ground and move with the combined crawler vehicle 1.
[0037] It can be seen from the above scheme that the combined crawler vehicle 1 and the counterweight crawler vehicle 2 provided by the utility model are composed of two crawler cranes that are disassembled and assembled. When lifting heavy objects, there is no need to purchase a crawler crane with a larger tonnage. The longer crawler frames of the two basic crawler cranes are recombined to form the crawler frame of the combined crawler vehicle 1, and the shorter crawler frames of the two basic crawler cranes are recombined to form the counterweight crawler vehicle 2, thereby increasing the front and rear wheelbases of the combined crawler vehicle 1, meeting the requirements for stability, and improving the lifting capacity. Through combination, it can become a crawler crane with a larger lifting capacity, and the counterweight can be placed on the counterweight crawler vehicle 2 to achieve movement, thereby improving flexibility and equipment utilization and reducing costs.
[0038] In this embodiment, the first crawler front frame 11 and the first crawler rear frame 12 are both provided with a first reducer 13, the second crawler front frame 21 and the second crawler rear frame 22 are both provided with a second reducer 23, and the torque of the first reducer 13 is greater than that of the second reducer 23. That is, the two crawler frames of the first crawler crane and the second crawler crane, which are longer and contain the first reducer 13 with large torque, are respectively combined to form the combined crawler vehicle 1, and the two crawler frames of the first crawler crane and the second crawler crane, which are shorter and contain the second reducer 23 with small torque, are respectively combined to form the counterweight crawler vehicle 2.
[0039] With such arrangement, since the combined crawler vehicle 1 is used to meet the requirements of lifting super-large tonnage heavy objects, the driving force is provided thereto by the first speed reducer 13 with large torque to meet the movement requirements.
[0040] In this embodiment, the first crawler front frame 11 and the first crawler rear frame 12 are both provided as a pair, located on both sides of the combined crawler vehicle 1, and the first crawler front frame 11 and the first crawler rear frame 12 on the same side are connected to be used for sleeve connection of crawlers. Similarly, the second crawler front frame 21 and the second crawler rear frame 22 are both provided as a pair, located on both sides of the counterweight crawler vehicle 2, and the second crawler front frame 21 and the second crawler rear frame 22 on the same side are connected.
[0041] Furthermore, the track gauge of the combined crawler vehicle 1 is greater than the track gauge of the counterweight crawler vehicle 2. By increasing the track gauge of the combined crawler vehicle 1, that is, the distance between the two crawlers, the stability and the lifting capacity of the whole vehicle are improved.
[0042] In this embodiment, the track gauge of the counterweight crawler vehicle 2 is the same as the track gauge of the first crawler crane and / or the second crawler crane. The track gauge of the counterweight crawler vehicle 2 may be the same as the track gauge of the first crawler crane, or the track gauge of the counterweight crawler vehicle 2 is the same as the track gauge of the second crawler crane. Preferably, the track gauge of the counterweight crawler vehicle 2 is the same as the track gauge of both the first crawler crane and the second crawler crane. That is to say, the original chassis beams of the first crawler crane and the second crawler crane can be directly used as the chassis beams of the combined counterweight crawler vehicle 2. By increasing the length of the beams and replacing the original chassis beams as the chassis beams of the combined crawler vehicle 1, the track gauge of the combined crawler vehicle 1 can be increased.
[0043] Specifically, Figure 2 As shown, the combined crawler vehicle 1 includes a first chassis, the first chassis includes a first front cross beam 14 and a first rear cross beam 15, both ends of the first front cross beam 14 are connected to the first crawler front frame 11, both ends of the first rear cross beam 15 are connected to the first crawler rear frame 12, and the first front cross beam 14 and the first rear cross beam 15 have the same length. The counterweight crawler vehicle 2 includes a second chassis, a counterweight tray 24 is arranged on the second chassis, the second chassis includes a second front cross beam and a second rear cross beam, both ends of the second front cross beam are connected to the second crawler front frame 21, both ends of the second rear cross beam are connected to the second crawler rear frame 22, the second front cross beam and the second rear cross beam have the same length, and the length of the second front cross beam is less than that of the first front cross beam 14.
[0044] With such arrangement, the beams of the first crawler crane and the second crawler crane can continue to be used as the front and rear beams of the combined counterweight crawler vehicle 2, while the first front beam 14 and the first rear beam 15 of the combined crawler vehicle 1 are additional components that replace the original beams to increase the track gauge of the combined crawler vehicle 1.
[0045] In this embodiment, the first crawler front frame 11 and the first crawler rear frame 12 are both provided with a first crossbeam connecting structure, and the ends of the first front crossbeam 14 and the first rear crossbeam 15 are connected to the first crossbeam connecting structure; the second crawler front frame 21 and the second crawler rear frame 22 are both provided with a second crossbeam connecting structure, and the ends of the second front crossbeam and the second rear crossbeam are connected to the second crossbeam connecting structure. The first crossbeam connecting structure and the second crossbeam connecting structure can be connecting plates, which are connected to the ends of the crossbeams through pin shafts.
[0046] Optionally, since the first crawler front frame 11 and the first crawler rear frame 12 are relatively long, a plurality of first beam connection structures may be provided corresponding to the ends of the first front beam 14 and the first rear beam 15 to improve the connection reliability between the beam and the crawler frame.
[0047] In some embodiments, a slewing bearing is arranged between the first front cross beam 14 and the first rear cross beam 15. The slewing bearing is used to connect a turntable, on which the boom 3 is arranged.
[0048] Furthermore, the first chassis also includes a first longitudinal beam 16 and a second longitudinal beam 17 . The first longitudinal beam 16 and the second longitudinal beam 17 are respectively arranged on both sides of the slewing bearing, and both ends of the first longitudinal beam 16 and the second longitudinal beam 17 are respectively connected to the first front cross beam 14 and the first rear cross beam 15 .
[0049] In this way, by adding the first longitudinal beam 16 and the second longitudinal beam 17, which are respectively connected to the first front cross beam 14 and the first rear cross beam 15 on both sides of the slewing bearing, the structural stability of the chassis of the combined crawler vehicle 1 and the load-bearing capacity during hoisting are improved.
[0050] Reference Figure 4 In this embodiment, a plurality of load-bearing grooves are evenly distributed on the counterweight tray 24, which are used to place the counterweight block in the weighing groove, thereby improving the reliability of the connection between the counterweight block and the counterweight tray 24.
[0051] A slewing bearing is also provided between the second front cross beam and the second rear cross beam, and the slewing bearing is used to drive the counterweight tray 24 to rotate, so that when the boom 3 on the first chassis rotates, the counterweight tray 24 rotates with the counterweight block.
[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A crawler crane, characterized in that: It is composed of the first crawler crane and the second crawler crane, including: A combined crawler vehicle (1) comprises a first crawler front frame (11) and a first crawler rear frame (12); A counterweight crawler vehicle (2) comprises a second crawler front frame (21) and a second crawler rear frame (22); The first crawler front frame (11) and the second crawler rear frame (22) are decomposed from the first crawler crane, the length of the first crawler front frame (11) is greater than the length of the second crawler rear frame (22), and the length of the first crawler front frame (11) is greater than the length of the second crawler front frame (21); The second crawler front frame (21) and the first crawler rear frame (12) are decomposed from the second crawler crane, the length of the first crawler rear frame (12) is greater than the length of the second crawler front frame (21), and the length of the first crawler rear frame (12) is greater than the length of the second crawler rear frame (22).
2. The crawler crane according to claim 1, characterized in that: The first crawler front frame (11) and the first crawler rear frame (12) are both provided with a first reducer (13), the second crawler front frame (21) and the second crawler rear frame (22) are both provided with a second reducer (23), and the torque of the first reducer (13) is greater than that of the second reducer (23).
3. The crawler crane according to claim 1, characterized in that: The track gauge of the combined crawler vehicle (1) is greater than the track gauge of the counterweight crawler vehicle (2).
4. The crawler crane according to claim 3, characterized in that: The track gauge of the counterweight crawler vehicle (2) is the same as the track gauge of the first crawler crane and / or the second crawler crane.
5. The crawler crane according to claim 3, characterized in that: The combined crawler vehicle (1) comprises a first chassis, the first chassis comprises a first front cross beam (14) and a first rear cross beam (15), the two ends of the first front cross beam (14) are connected to the first crawler front frame (11), the two ends of the first rear cross beam (15) are connected to the first crawler rear frame (12), and a slewing bearing is arranged between the first front cross beam (14) and the first rear cross beam (15).
6. The crawler crane according to claim 5, characterized in that: The first chassis further comprises a first longitudinal beam (16) and a second longitudinal beam (17), wherein the first longitudinal beam (16) and the second longitudinal beam (17) are respectively arranged on both sides of the slewing bearing, and the two ends of the first longitudinal beam (16) and the second longitudinal beam (17) are respectively connected to the first front cross beam (14) and the first rear cross beam (15).
7. The crawler crane according to claim 5, characterized in that: The counterweight crawler vehicle (2) comprises a second chassis, on which a counterweight tray (24) is arranged.
8. The crawler crane according to claim 7, characterized in that: The second chassis comprises a second front cross beam and a second rear cross beam, the two ends of the second front cross beam are connected to the second crawler front frame (21), the two ends of the second rear cross beam are connected to the second crawler rear frame (22), and the length of the second front cross beam is shorter than that of the first front cross beam (14).
9. The crawler crane according to claim 7, characterized in that: The counterweight tray (24) is evenly distributed with a plurality of load-bearing grooves.
10. The crawler crane according to claim 8, characterized in that: The first crawler front frame (11) and the first crawler rear frame (12) are both provided with a first crossbeam connecting structure, and the ends of the first front crossbeam (14) and the first rear crossbeam (15) are connected to the first crossbeam connecting structure; The second crawler front frame (21) and the second crawler rear frame (22) are both provided with a second crossbeam connecting structure, and the ends of the second front crossbeam and the second rear crossbeam are connected to the second crossbeam connecting structure.