A track-type undercarriage and excavator capable of carrying tyres

Abstract

The utility model discloses a caterpillar walking device and excavator of loadable tire mainly applies to excavator, including lower frame, caterpillar, pilot wheel and drive wheel, two outer sides of lower frame are fixed with one symmetrically arranged tire mounting seat in the part of being close to pilot wheel, when the excavator needs to change the field, the tire is assembled on tire mounting seat, makes pilot wheel end caterpillar to be suspended on the ground. The utility model can help the caterpillar type hydraulic excavator with frequent long-distance change of field requirement to realize quick change of field. The tire is convenient to install, and is used in collocation with mine truck, can greatly prolong the service life of four-wheel one belt, and also can save the flat car expense, and is economic and suitable.

Description

Technical Field

[0001] This utility model relates to a tracked walking device that can be loaded with tires, belonging to the field of excavator walking structure technology. Background Technology

[0002] Currently, hydraulic excavators are divided into tracked hydraulic excavators and wheeled hydraulic excavators. Tracked hydraulic excavators have strong off-road capabilities, good passability, high load-bearing capacity, strong climbing ability, high stability, and durability. However, they have a slow travel speed and cause significant damage to the ground surface, making them unsuitable for driving on flat surfaces such as concrete. Wheeled hydraulic excavators, on the other hand, have high mobility, are easy to move between sites, travel at high speeds, and cause less damage to the ground. However, they have weaker passability and climbing ability, limited load-bearing capacity, and poorer stability.

[0003] Tracked hydraulic excavators and wheeled hydraulic excavators cannot have their chassis quickly changed, thus preventing them from integrating their respective advantages and compensating for each other's shortcomings. However, in large-scale mining and other situations requiring operations across multiple locations, the frequent relocation of tracked excavators is not only time-consuming but also causes significant wear and tear on their wheels; using flatbed trucks for transport is both expensive and inconvenient. Therefore, there is an urgent need to solve the problem of frequent relocation for tracked hydraulic excavators. Summary of the Invention

[0004] This utility model provides a tracked walking device that can be loaded with tires. A tire mounting seat is welded to the outside of the guide wheel seat, which facilitates the temporary installation and removal of tires. It is suitable for hydraulic excavators that have both frequent relocation needs and complex mining operation requirements.

[0005] This utility model is achieved according to the following technical solution:

[0006] In the first aspect, this utility model provides a tracked walking device that can be loaded with tires, mainly used in excavators. It includes a chassis, tracks, idler wheels and drive wheels. On the two outer sides of the chassis, there is a symmetrically arranged tire mounting seat near the idler wheel. When the excavator needs to be moved, a tire is mounted on the tire mounting seat, so that the track at the idler wheel end is suspended above the ground.

[0007] In some embodiments, the tire mounting base includes a bearing and a mounting disc, the bearing is mounted on the outer side of the lower frame, the mounting disc is rotatably supported on the bearing, and the tire is mounted on the mounting disc.

[0008] In some embodiments, the mounting plate is a flange with a plurality of mounting holes evenly arranged along its entire circumference at its edge. The mounting holes correspond one-to-one with the through holes on the tire, and the tire is mounted on the flange by bolts and nuts arranged around the circumference.

[0009] In some embodiments, the central region of the flange is provided as a convex groove, the outer end of the bearing is inserted into the groove, and a bearing is fixed between the opposing circumferential surfaces of the two, so that the relative rotation of the two can be achieved by the bearing.

[0010] In some embodiments, the bearing is welded to the outer surface of the lower frame.

[0011] In some embodiments, the inner surface structure of the bearing seat is a flange, and the flange has a plurality of mounting holes evenly arranged along its entire circumference at its edge. The mounting holes correspond one-to-one with the threaded holes on the underframe, and the bearing seat is mounted on the underframe by bolts arranged around the circumference.

[0012] In some embodiments, the underframe includes an H-frame and two guide wheel seats. The two guide wheels are symmetrically welded to the two ends of the same side of the H-frame. The guide wheels are rotatably supported in the guide wheel seats, and the tire mounting seat is fixed to the outer side of the guide wheel seat.

[0013] Secondly, this utility model provides an excavator, including the aforementioned tracked walking device capable of carrying tires.

[0014] The beneficial effects of this utility model are:

[0015] This technology enables tracked hydraulic excavators working in large mines and requiring frequent long-distance relocations to achieve rapid site changes. The tires are easy to install and can be used with mining trucks, significantly extending the lifespan of the four wheels and tracks, while also saving on flatbed truck costs, making it economical and practical. Attached Figure Description

[0016] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the structure of a tracked walking device that can be equipped with tires according to the present invention (without tires installed).

[0019] Figure 2 This is a schematic diagram of the structure of a tracked walking device that can be equipped with tires according to the present invention (with tires installed).

[0020] Figure 3 This is a schematic diagram of the tire mounting bracket of this utility model (a is a perspective view, b is a side view).

[0021] Figure 4 This is a structural schematic diagram of the excavator according to the present invention.

[0022] Attached diagram labels: 1-Tire mounting bracket, 2-Lower frame, 3-Tire, 4-Bolt, 5-Nut, 11-Axle seat, 12-Mounting plate, 21-H-frame, 22-Guide wheel seat.

[0023] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Currently available hydraulic excavators are only available in tracked and wheeled types. Wheeled excavators are not suitable for mining operations, so tracked hydraulic excavators are used. Tracked excavators rely mainly on flatbed trucks for long-distance relocation, while they travel on their own four wheels for short-distance relocation.

[0028] Traditional tracked hydraulic excavators suffer from slow movement, damage to concrete roads, and difficulty in relocation, typically requiring flatbed trucks for transport. While wheeled excavators can solve these mobility issues, they are unsuitable for complex terrains such as mines. Furthermore, prolonged, long-distance self-propelled movement of tracked hydraulic excavators places excessive wear and tear on the four wheels and tracks. Therefore, this invention provides a tracked walking device that can be equipped with tires, solving the problem of frequent relocation for tracked hydraulic excavators.

[0029] like Figure 1 , Figure 2 , Figure 4 As shown, a tracked walking device capable of mounting tires is mainly used in excavators. It includes a lower frame 2, tracks, idler wheels, and drive wheels. On the two outer sides of the lower frame 2, near the idler wheels, there is a symmetrically arranged tire mounting seat 1. When the excavator needs to be moved, tires 3 are mounted on the tire mounting seats 1, so that the track at the idler wheel end is suspended above the ground. Then, the excavator is hung on the rear of a mining car by a working device. The mining car drives the excavator with the tires mounted to achieve rapid relocation without damaging the cement road surface.

[0030] The following provides a further explanation of the specific structure of the aforementioned tire mounting bracket.

[0031] like Figure 3 As shown, the tire mounting base 1 includes a bearing 11 and a mounting plate 12. The bearing 11 is mounted on the outer side of the lower frame 2, and the mounting plate 12 is rotatably supported on the bearing 11. The tire 3 is mounted on the mounting plate 12.

[0032] Further options, such as Figure 2 , Figure 3 As shown, the mounting plate 12 is a flange. The flange has multiple mounting holes evenly arranged along its entire circumference. The mounting holes correspond one-to-one with the through holes on the tire. The tire 3 is mounted on the flange by bolts 4 and nuts 5 arranged around the circumference.

[0033] Further options, such as Figure 3 As shown, the central area of ​​the flange is designed as a convex groove, the outer end of the bearing seat 11 is inserted into the groove, and a bearing is fixed between the two opposing circumferential surfaces, so that the relative rotation of the two can be achieved through the bearing.

[0034] It should be noted that the structural form of the tire mounting bracket can vary, but its essence remains a bearing, axle, and flange structure. For example, in addition to being welded to the frame, the axle bracket can also be designed as an assembly bracket, assembled onto the frame. Specifically, the inner surface of the axle bracket is designed as a flange, and the edge of this flange has multiple mounting holes evenly arranged along its entire circumference. These mounting holes correspond one-to-one with the threaded holes on the underframe, and the axle bracket is mounted onto the underframe using bolts arranged around the circumference.

[0035] Further options, such as Figure 1 As shown, the lower frame 2 includes an H-frame 21 and two guide wheel seats 22. The two guide wheels are symmetrically welded to the two ends of the same side of the H-frame. The guide wheels are rotatably supported in the guide wheel seats 22, and the tire mounting seat 1 is fixed to the outer side of the guide wheel seat 22.

[0036] The following describes the working process of applying the aforementioned tire-loadable tracked walking device to an excavator.

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a tire mounting seat 1 is added to the outside of the guide seat of the tracked hydraulic excavator, which allows for the temporary installation and removal of the tire 3. When relocation is required, simply use the working device to lift the lower vehicle on the guide wheel side, and then install the tire 3 onto the tire mounting seat 1 using bolts 4 and nuts 5. Adjust the working device to lower the lower vehicle. At this time, the guide wheel end is in contact with the ground through the tire 3, and the guide wheel end track is suspended above the ground, but the drive wheel side track is still in contact with the ground. Then, turn the upper vehicle 180 degrees, hang the working device on the mining truck, and lift the drive wheel end of the lower vehicle. At this time, the excavator is supported by the contact between the tire 3 on the guide wheel side and the ground, and the contact between the working device and the mining truck. Start the mining truck to move the excavator to another location. The tire mounting seat 1 is welded to the outside of the guide wheel seat 22 of the lower frame 2 and includes a bearing, which allows the flange to rotate freely. The tire 3 is installed on the flange using bolts 4 and nuts 5.

[0038] In summary, this utility model provides a tracked walking device that can be equipped with tires, achieving the following functions and effects:

[0039] This utility model provides a tire-mountable tracked walking device that enables tracked hydraulic excavators working in large mines and requiring frequent long-distance relocations to achieve rapid site transfers. The tires are easy to install and, when used with mining trucks, can greatly extend the service life of the four wheels and tracks, while also saving on flatbed truck costs, making it economical and practical.

[0040] The excavator provided by this utility model is described below. The excavator described below can be referred to in correspondence with the tracked walking device with tires described above.

[0041] like Figure 4 As shown, the excavator provided by this utility model may include a tracked walking device capable of carrying tires as described in any of the above embodiments.

[0042] The beneficial effects achieved by the excavator provided by this utility model are consistent with the beneficial effects achieved by the tracked walking device that can be loaded with tires provided by this utility model, so they will not be repeated here.

[0043] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0044] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A tracked walking device capable of mounting tires, mainly used in excavators, comprising a chassis, tracks, idler wheels, and drive wheels, characterized in that: The two outer sides of the underframe each have a symmetrically arranged tire mounting seat fixed near the guide wheel. When the excavator needs to be moved, tires are mounted on the tire mounting seats so that the track at the end of the guide wheel is suspended above the ground.

2. The tracked walking device capable of carrying tires according to claim 1, characterized in that: The tire mounting base includes a bearing seat and a mounting circular plate. The bearing seat is mounted on the outer side of the lower frame, and the mounting circular plate is rotatably supported on the bearing seat. The tire is mounted on the mounting circular plate.

3. The tracked walking device capable of carrying tires according to claim 2, characterized in that: The mounting plate is a flange, and the flange has multiple mounting holes evenly arranged along its entire circumference. The mounting holes correspond one-to-one with the through holes on the tire. The tire is mounted on the flange by bolts and nuts arranged around the circumference.

4. A tracked walking device capable of carrying tires according to claim 3, characterized in that: The central area of ​​the flange is provided with an outwardly convex groove, the outer end of the bearing is inserted into the groove, and a bearing is fixed between the two opposing circumferential surfaces, so that the relative rotation of the two can be achieved by the bearing.

5. A tracked walking device capable of carrying tires according to claim 2, characterized in that: The axle seat is welded to the outer surface of the lower frame.

6. A tracked walking device capable of carrying tires according to claim 2, characterized in that: The inner side of the bearing seat is a flange, and the flange has multiple mounting holes evenly arranged along its entire circumference. The mounting holes correspond one-to-one with the threaded holes on the underframe. The bearing seat is installed on the underframe by bolts arranged around the circumference.

7. A tracked walking device capable of carrying tires according to claim 1, characterized in that: The lower frame includes an H-frame and two guide wheel seats. The two guide wheels are symmetrically welded to the two ends of the same side of the H-frame. The guide wheels are rotatably supported in the guide wheel seats. The tire mounting seat is fixed to the outer side of the guide wheel seat.

8. An excavator, characterized in that: Includes the tire-loadable tracked walking device as described in any one of claims 1 to 7.

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