Polymorphic chassis and mechanical equipment

Abstract

The utility model discloses a polymorphic chassis and mechanical equipment, the polymorphic chassis comprises a chassis center frame, a connecting frame and a track frame, the connecting frame is respectively connected with the chassis center frame and the track frame; the connecting frame comprises a first connecting frame or a second connecting frame, and the first connecting frame or the second connecting frame is connected with the chassis center frame and the track frame; in the first chassis form, the first connecting frame is respectively connected with the chassis center frame and the track frame; in the second chassis form, the second connecting frame is connected with the chassis center frame and the track frame. By adopting the first connecting frame or the second connecting frame and alternatively connecting the first connecting frame or the second connecting frame with the chassis center frame and the track frame, chassis with different bearing capacities or different body types can be assembled, and when the performance of the whole vehicle needs to be changed, the performance of the whole vehicle can be changed only by replacing part of components of the chassis; and a whole set of new chassis system does not need to be purchased again.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to a multi-form chassis and mechanical equipment. Background Art

[0002] Large-scale machinery plays a vital role in construction projects and disaster relief operations. Typically, large-scale machinery consists of a chassis (tracked chassis) and a superstructure. The chassis is responsible for both traveling and carrying the superstructure, while the superstructure is used for the primary rescue mission.

[0003] Due to the inherently slow speed of large machinery, most large machinery currently requires transportation to the construction site or accident site before it can begin operations. However, when a severe natural disaster such as an earthquake or mudslide strikes a construction site, roads become blocked and vehicles cannot pass normally. This can prevent large machinery from reaching the construction site in a timely manner, delaying the construction period or missing valuable rescue time. To address such situations, large machinery is typically disassembled (including the large chassis), then manually transported (or lifted by helicopter) to the disaster area for reassembly. Furthermore, at construction sites with narrow entrances or where it is difficult for large machinery to reach on its own, the chassis must also be disassembled and transported before reassembly.

[0004] However, the chassis design of existing large-scale mechanical equipment is mostly welded and assembled as a whole, which is heavy and bulky, making it quite difficult to transport, resulting in low transfer efficiency. Although a small number of large-scale mechanical equipment have detachable chassis, they can only be assembled into a chassis of one size after production is completed. When a larger or smaller chassis is needed, the entire chassis can only be replaced. The overall cost of the chassis system is high, there are currently no interchangeable main modules, and the resource utilization rate of each module is low. When the performance of the entire vehicle needs to be upgraded, an entire new chassis system can only be purchased. If the customer requires a performance upgrade, the entire chassis system also needs to be purchased again. As an important component of the entire vehicle, the chassis system accounts for a large proportion of the cost of the entire vehicle, and the cost of a new purchase is not cost-effective. Utility Model Content

[0005] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a multi-form chassis and mechanical equipment to solve the problem of high cost of upgrading a detachable chassis in the prior art.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] The utility model provides a multi-form chassis, comprising a chassis center frame, a connecting frame and a crawler frame;

[0008] The connecting frame includes a first connecting frame or a second connecting frame, and the first connecting frame or the second connecting frame is connected to the chassis center frame and the crawler frame;

[0009] In the first chassis form, the first connecting frame is connected to the chassis center frame and the track frame respectively; in the second chassis form, the second connecting frame is connected to the chassis center frame and the track frame respectively.

[0010] Furthermore, the length of the first connecting frame is smaller than the length of the second connecting frame, or the length and width of the first connecting frame are smaller than the length and width of the second connecting frame;

[0011] The crawler frame includes a first crawler frame and a second crawler frame, and the length of the first crawler frame is smaller than the length of the second crawler frame.

[0012] Furthermore, the first connecting frame includes a first cross frame, and in the first chassis form, the first cross frame is connected to the chassis center frame and the first crawler frame respectively;

[0013] The second connecting frame includes a second cross frame and a longitudinal frame. In the second chassis form, the second cross frame is respectively connected to the chassis center frame and the longitudinal frame, and the longitudinal frame is respectively connected to the chassis center frame, the second cross frame and the second crawler frame.

[0014] Furthermore, the first connecting frame includes a first cross frame, and in the first chassis form, the first cross frame is connected to the chassis center frame and the first crawler frame respectively;

[0015] The second connecting frame includes a first cross frame and an extension frame. In the second chassis form, the first cross frame is connected to the extension frame and the second crawler frame respectively, and the extension frame is connected to the chassis center frame and the first cross frame respectively.

[0016] Furthermore, the second connecting frame also includes a widening frame. In the second chassis form, the first cross frame is respectively connected to the growth frame and the widening frame, the growth frame is respectively connected to the chassis center frame and the first cross frame, and the widening frame is respectively connected to the first cross frame and the second crawler frame.

[0017] Furthermore, the first track frame includes a track frame front section and a track frame rear section, and the track frame front section and the track frame rear section are connected.

[0018] The second track frame includes the track frame front section, the track frame rear section and the track frame middle section, and the track frame middle section is connected to the track frame front section and the track frame rear section respectively.

[0019] Furthermore, the width of the first connecting frame is smaller than the width of the second connecting frame, and the crawler frame includes a first crawler frame.

[0020] Furthermore, the first connecting frame includes a first cross frame, and in the first chassis form, the first cross frame is connected to the chassis center frame and the first crawler frame respectively;

[0021] The second connecting frame includes a first cross frame and a width-enhancing frame. In the second chassis form, the first cross frame is respectively connected to the width-enhancing frame and the chassis center frame, and the width-enhancing frame is respectively connected to the first cross frame and the first crawler frame.

[0022] Furthermore, the first track frame includes a track frame front section and a track frame rear section, and the track frame front section and the track frame rear section are connected.

[0023] The present application also provides a mechanical device comprising the multi-morphological chassis as described above.

[0024] The beneficial effects of the present invention are as follows: by adopting the first connecting frame or the second connecting frame and selectively connecting them with the chassis center frame and the track frame, chassis with different load-bearing capacities or sizes can be assembled. When it is necessary to change the performance of the entire vehicle, most of the main components of the original chassis system are retained. The performance of the entire vehicle can be changed by simply replacing some components of the chassis and combining them into a new chassis system. This can greatly reduce the procurement cost of customers when the performance of the entire vehicle needs to be upgraded, and there is no need to repurchase a whole new chassis system. The interchangeability of the chassis system is improved, the development, design and verification cycles are saved, and the development efficiency can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of various components of the multi-form chassis in the first embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the disassembled structure of the multi-form chassis in the first chassis form in the first embodiment of the present invention;

[0027] Figure 3 This is a schematic structural diagram of the multi-form chassis in the first chassis form in the first embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the disassembled structure of the multi-form chassis in the second chassis form in the first embodiment of the present invention;

[0029] Figure 5 This is a schematic structural diagram of the multi-form chassis in the second chassis form in the first embodiment of the present invention;

[0030] Figure 6This is a schematic diagram of the disassembled structure of the multi-form chassis in the second chassis form in the second embodiment of the present invention;

[0031] Figure 7 This is a schematic structural diagram of the multi-form chassis in the second chassis form in the second embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the disassembled structure of the multi-form chassis in the second chassis form in the third embodiment of the present invention;

[0033] Figure 9 This is a schematic structural diagram of the multi-form chassis in the second chassis form in the third embodiment of the present invention.

[0034] In the figure: chassis center frame 10, connecting frame 20, first connecting frame 20a, second connecting frame 20b, first cross frame 21, second cross frame 22, longitudinal frame 23, extension frame 24, widening frame 25, track frame 30, first track frame 30a, second track frame 30b, track frame front section 31, track frame rear section 32, track frame middle section 33. DETAILED DESCRIPTION

[0035] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose of the present invention, the following, in conjunction with the accompanying drawings and preferred embodiments, describes in detail the specific implementation, structure, features, and effects of the multi-form chassis and mechanical equipment proposed in the present invention:

[0036] [Example 1]

[0037] Figure 1 It is a schematic structural diagram of various components of the multi-form chassis in the first embodiment of the present invention. Figure 2 This is a schematic diagram of the disassembled structure of the multi-form chassis in the first chassis form in Example 1 of the present invention.

[0038] Figure 3 This is a schematic structural diagram of the multi-form chassis in the first chassis form in the first embodiment of the present invention.

[0039] Figure 4 This is a schematic diagram of the disassembled structure of the multi-form chassis in the second chassis form in the first embodiment of the present invention. Figure 5 This is a schematic structural diagram of the multi-form chassis in the second chassis form in the first embodiment of the present invention.

[0040] like Figures 1 to 5As shown, a multi-form chassis provided by the first embodiment of the present invention includes a chassis center frame 10, a connecting frame 20, and a track frame 30. The connecting frame 20 is connected to the chassis center frame 10 and the track frame 30, respectively. The connecting frame 20 is detachably connected to both the chassis center frame 10 and the track frame 30. For example, the connecting frame 20 and the chassis center frame 10 are detachably connected by a pin and a pin hole, and the connecting frame 20 and the track frame 30 are detachably connected by a pin and a pin hole. Of course, a detachable connection can also be achieved by using nuts and bolts.

[0041] The connecting frame 20 includes a first connecting frame 20a and / or a second connecting frame 20b. The first connecting frame 20a and the second connecting frame 20b have different lengths and / or widths. The first connecting frame 20a or the second connecting frame 20b is connected to the chassis center frame 10 and the track frame 30. That is, either the first connecting frame 20a is connected to the chassis center frame 10 and the track frame 30, or the second connecting frame 20b is connected to the chassis center frame 10 and the track frame 30. In the first chassis configuration, the first connecting frame 20a is connected to the chassis center frame 10 and the track frame 30, respectively; in the second chassis configuration, the second connecting frame 20b is connected to the chassis center frame 10 and the track frame 30, respectively. In this embodiment, the connecting frame 20 includes a first connecting frame 20a and a second connecting frame 20b. The first connecting frame 20a and the second connecting frame 20b have different lengths and widths. The length and width of the first connecting frame 20a are both smaller than those of the second connecting frame 20b. The length is the dimension in the extension direction of the crawler frame 30, that is, the front-to-back direction of the movement of the mechanical equipment; the width is the dimension perpendicular to the extension direction of the crawler frame 30, that is, the left-to-right direction of the movement of the mechanical equipment.

[0042] In this embodiment, the track frame 30 includes a first track frame 30a and a second track frame 30b. The length of the first track frame 30a is shorter than that of the second track frame 30b. The first track frame 30a includes a front track frame section 31 and a rear track frame section 32, which are connected. That is, the first track frame 30a is assembled by the front track frame section 31 and the rear track frame section 32 to form the shorter first track frame 30a. The second track frame 30b includes the front track frame section 31, the rear track frame section 32, and a middle track frame section 33. The middle track frame section 33 is respectively connected to the front track frame section 31 and the rear track frame section 32. That is, the second track frame 30b is assembled by the front track frame section 31, the rear track frame section 32, and the middle track frame section 33 to form the longer first track frame 30a. When changing the length of the first track frame 30a and the second track frame 30b, the front track frame section 31 and the rear track frame section 32 can be retained, and the length of the first track frame 30a and the second track frame 30b can be adjusted by simply removing and installing the middle track frame section 33. The front track frame section 31 and the rear track frame section 32 are detachably connected, and the middle track frame section 33 is detachably connected to the front track frame section 31 and the rear track frame section 32, respectively. For example, the detachable connection is achieved by the cooperation of a pin and a pin hole. Of course, the detachable connection can also be achieved by the cooperation of a nut and a bolt.

[0043] like Figure 2 and Figure 3 As shown, the first connecting frame 20a includes a first cross frame 21. In the first chassis form, the first cross frame 21 is connected to the chassis center frame 10 and the first track frame 30a. That is, the first chassis form is formed by assembling the chassis center frame 10, the first cross frame 21 and the first track frame 30a, so that it can be applied to smaller mechanical equipment. Figure 4 and Figure 5 As shown, the second connecting frame 20b includes a second transverse frame 22 and a longitudinal frame 23. In the second chassis configuration, the second transverse frame 22 is connected to the chassis center frame 10 and the longitudinal frames 23, respectively. The longitudinal frames 23 are connected to the chassis center frame 10, the second transverse frame 22, and the second track frames 30b, respectively. In other words, the second chassis configuration is formed by assembling the chassis center frame 10, the second transverse frame 22, the longitudinal frames 23, and the second track frames 30b. This makes the chassis suitable for larger machines.

[0044] Furthermore, there is one chassis center frame 10, two connecting frames 20, and two track frames 30. The track frames 30 are located on both sides of the chassis, and each track frame 30 is connected to the chassis center frame 10 via a corresponding connecting frame 20. That is, in this embodiment, there are two first cross frame 21, two second cross frame 22, two longitudinal frames 23, two track frame front sections 31, two track frame rear sections 32, and two track frame middle sections 33.

[0045] The present application adopts two connecting frames 20 of different lengths and / or widths, and selectively assembles them with the chassis center frame 10 and the track frame 30, so that chassis of different lengths and / or widths can be assembled to make the load-bearing capacity or body shape of the chassis different. When the performance of the whole vehicle needs to be changed, most of the main components of the original chassis system are retained. The performance of the whole vehicle can be changed by simply replacing some components of the chassis and combining them into a new chassis system. This can greatly reduce the procurement cost of customers when the performance of the whole vehicle needs to be upgraded, and there is no need to repurchase a whole new chassis system; the interchangeability of the chassis system is improved, the development, design and verification cycle is saved, and the development efficiency can be greatly improved.

[0046] [Example 2]

[0047] Figure 6 This is a schematic diagram of the disassembled structure of the multi-form chassis in the second chassis form in the second embodiment of the present invention. Figure 7 This is a schematic diagram of the structure of the multi-form chassis in the second chassis form in the second embodiment of the present invention. Figure 6 and Figure 7 As shown, the multi-form chassis provided by the second embodiment of the present invention is different from the one provided by the first embodiment ( Figures 1 to 5 ) are substantially the same, except that, in this embodiment:

[0048] The first connecting frame 20a and the second connecting frame 20b have different lengths. The first connecting frame 20a is shorter than the second connecting frame 20b, and the width of the first connecting frame 20a is the same as the width of the second connecting frame 20b. The length refers to the dimension in the extension direction of the crawler frame 30, i.e., the front-to-back direction of the mechanical equipment movement; the width refers to the dimension perpendicular to the extension direction of the crawler frame 30, i.e., the left-to-right direction of the mechanical equipment movement.

[0049] In this embodiment, reference Figure 2 and Figure 3 As shown, the first connecting frame 20a includes a first cross frame 21. In the first chassis configuration, the first cross frame 21 is connected to the chassis center frame 10 and the first track frame 30a. In other words, the first chassis configuration is formed by assembling the chassis center frame 10, the first cross frame 21, and the first track frame 30a. This makes the chassis suitable for smaller machines.

[0050] like Figure 6 and Figure 7As shown, the second connecting frame 20b includes a first cross frame 21 and an extension frame 24. In the second chassis configuration, the first cross frame 21 is connected to the extension frame 24 and the second crawler frame 30b, respectively. The extension frame 24 is connected to the chassis center frame 10 and the first cross frame 21. Thus, the second chassis configuration is formed by assembling the chassis center frame 10, the first cross frame 21, the extension frame 24, and the second crawler frame 30b. This makes the chassis suitable for longer machines. There are two extension frames 24.

[0051] In another embodiment, the length and width of the first connecting frame 20a and the second connecting frame 20b are different, and the length and width of the first connecting frame 20a are both smaller than the length and width of the second connecting frame 20b. The second connecting frame 20b includes a first cross frame 21, an extension frame 24, and a widening frame 25. In the second chassis form, the first cross frame 21 is connected to the extension frame 24 and the widening frame 25, respectively. The extension frame 24 is connected to the chassis center frame 10 and the first cross frame 21, respectively. The widening frame 25 is connected to the first cross frame 21 and the second crawler frame 30b, respectively. That is, the second chassis form is formed by assembling the chassis center frame 10, the first cross frame 21, the extension frame 24, the widening frame 25, and the second crawler frame 30b, so that it can be used for longer and wider mechanical equipment. Among them, the number of the extension frame 24 and the widening frame 25 is two.

[0052] The second connecting frame 20 b is formed by the first cross frame 21 and the extension frame 24 , so that the first cross frame 21 can be used in both the first chassis form and the second chassis form, thereby reducing the number of parts of the entire chassis system and lowering the cost.

[0053] It should be understood by those skilled in the art that the remaining structures and working principles of this embodiment are the same as those of the first embodiment and will not be described in detail here.

[0054] [Example 3]

[0055] Figure 8 This is a schematic diagram of the disassembled structure of the multi-form chassis in the second chassis form in the third embodiment of the present invention. Figure 9 This is a schematic diagram of the structure of the multi-form chassis in the second chassis form in the third embodiment of the present invention. Figure 8 and Figure 9 As shown, the multi-form chassis provided in the third embodiment of the present invention is different from the one in the first embodiment ( Figures 1 to 5 ) are substantially the same, except that, in this embodiment:

[0056] The first connecting frame 20a and the second connecting frame 20b have different widths. The width of the first connecting frame 20a is smaller than the width of the second connecting frame 20b, and the length of the first connecting frame 20a is the same as the length of the second connecting frame 20b. The length refers to the dimension in the extension direction of the crawler frame 30, i.e., the front-to-back direction of the mechanical equipment movement; the width refers to the dimension perpendicular to the extension direction of the crawler frame 30, i.e., the left-to-right direction of the mechanical equipment movement.

[0057] In this embodiment, the track frame 30 includes a first track frame 30a, and the first track frame 30a includes a front track frame section 31 and a rear track frame section 32. The front track frame section 31 and the rear track frame section 32 are connected, that is, in the first chassis form and the second chassis form, the size of the track frame 30 is the same, and the size of the track frame 30 does not need to be changed.

[0058] In this embodiment, reference Figure 2 and Figure 3 As shown, the first connecting frame 20a includes a first cross frame 21. In the first chassis configuration, the first cross frame 21 is connected to the chassis center frame 10 and the first track frame 30a. In other words, the first chassis configuration is formed by assembling the chassis center frame 10, the first cross frame 21, and the first track frame 30a. This makes the chassis suitable for smaller machines.

[0059] like Figure 8 and Figure 9 As shown, the second connecting frame 20b includes a first cross frame 21 and a width-enhancing frame 25. In the second chassis configuration, the first cross frame 21 is connected to the width-enhancing frame 25 and the chassis center frame 10, respectively. The width-enhancing frame 25 is connected to the first cross frame 21 and the first track frame 30a. Thus, the second chassis configuration is formed by assembling the chassis center frame 10, the first cross frame 21, the width-enhancing frame 25, and the first track frame 30a. This makes the second chassis configuration suitable for wider machinery and equipment. There are two width-enhancing frames 25.

[0060] The second connecting frame 20b is formed by the first cross frame 21 and the widening frame 25, so that the first cross frame 21 and the first track frame 30a can be used in both the first chassis form and the second chassis form, thereby reducing the number of parts of the entire chassis system and lowering costs.

[0061] It should be understood by those skilled in the art that the remaining structures and working principles of this embodiment are the same as those of the first embodiment and will not be described in detail here.

[0062] The present application also provides a mechanical device including the multi-modal chassis described above. When the performance of the entire vehicle needs to be modified, most of the main components of the original chassis system can be retained. The performance of the entire vehicle can be modified by simply replacing some of the chassis components and combining them into a new chassis system. This can significantly reduce the procurement cost of customers who need to upgrade the performance of the entire vehicle, eliminating the need to purchase an entire new chassis system. This improves the interchangeability of the chassis system, shortens the development, design, and verification cycles, and significantly improves development efficiency.

[0063] In this document, directional terms such as "up," "down," "left," "right," "front," and "back" are defined based on the positions of structures in the accompanying drawings and their relative positions to each other, for the sake of clarity and convenience in presenting the technical solution. It should be understood that the use of these directional terms does not limit the scope of protection claimed in this application. It should also be understood that the terms "first" and "second," etc., used herein, are used solely for distinctions and are not intended to limit quantity or order.

[0064] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to the technical content disclosed above without departing from the scope of the technical solution of the present invention, which are equivalent embodiments of equivalent changes. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A multi-form chassis, characterized in that: It comprises a chassis center frame (10), a connecting frame (20) and a crawler frame (30); The connecting frame (20) includes a first connecting frame (20a) or a second connecting frame (20b), and the first connecting frame (20a) or the second connecting frame (20b) is connected to the chassis center frame (10) and the crawler frame (30); In the first chassis form, the first connecting frame (20a) is connected to the chassis center frame (10) and the crawler frame (30) respectively; In the second chassis form, the second connecting frame (20b) is respectively connected to the chassis center frame (10) and the crawler frame (30).

2. The multi-form chassis according to claim 1, characterized in that: The length of the first connecting frame (20a) is smaller than the length of the second connecting frame (20b), or the length and width of the first connecting frame (20a) are both smaller than the length and width of the second connecting frame (20b); The crawler frame (30) comprises a first crawler frame (30a) and a second crawler frame (30b), wherein the length of the first crawler frame (30a) is smaller than the length of the second crawler frame (30b).

3. The multi-form chassis according to claim 2, characterized in that: The first connecting frame (20a) includes a first transverse frame (21), and in the first chassis form, the first transverse frame (21) is respectively connected to the chassis center frame (10) and the first crawler frame (30a); The second connecting frame (20b) includes a second transverse frame (22) and a longitudinal frame (23). In the second chassis form, the second transverse frame (22) is respectively connected to the chassis center frame (10) and the longitudinal frame (23), and the longitudinal frame (23) is respectively connected to the chassis center frame (10), the second transverse frame (22) and the second crawler frame (30b).

4. The multi-form chassis according to claim 2, characterized in that: The first connecting frame (20a) includes a first transverse frame (21), and in the first chassis form, the first transverse frame (21) is respectively connected to the chassis center frame (10) and the first crawler frame (30a); The second connecting frame (20b) includes a first transverse frame (21) and an extension frame (24); in the second chassis form, the first transverse frame (21) is respectively connected to the extension frame (24) and the second crawler frame (30b); and the extension frame (24) is respectively connected to the chassis center frame (10) and the first transverse frame (21).

5. The multi-form chassis according to claim 4, characterized in that: The second connecting frame (20b) also includes a widening frame (25). In the second chassis form, the first cross frame (21) is connected to the growth frame (24) and the widening frame (25) respectively, the growth frame (24) is connected to the chassis center frame (10) and the first cross frame (21) respectively, and the widening frame (25) is connected to the first cross frame (21) and the second crawler frame (30b) respectively.

6. The multi-form chassis according to any one of claims 2 to 5, characterized in that: The first crawler frame (30a) comprises a crawler frame front section (31) and a crawler frame rear section (32), and the crawler frame front section (31) and the crawler frame rear section (32) are connected; The second track frame (30b) comprises the track frame front section (31), the track frame rear section (32) and the track frame middle section (33), and the track frame middle section (33) is respectively connected to the track frame front section (31) and the track frame rear section (32).

7. The multi-form chassis according to claim 1, characterized in that: The width of the first connecting frame (20a) is smaller than the width of the second connecting frame (20b), and the crawler frame (30) includes a first crawler frame (30a).

8. The multi-form chassis according to claim 7, characterized in that: The first connecting frame (20a) includes a first transverse frame (21), and in the first chassis form, the first transverse frame (21) is respectively connected to the chassis center frame (10) and the first crawler frame (30a); The second connecting frame (20b) includes a first transverse frame (21) and a width-enhancing frame (25). In the second chassis form, the first transverse frame (21) is respectively connected to the width-enhancing frame (25) and the chassis center frame (10), and the width-enhancing frame (25) is respectively connected to the first transverse frame (21) and the first crawler frame (30a).

9. The multi-form chassis according to claim 7 or 8, characterized in that: The first crawler frame (30a) comprises a crawler frame front section (31) and a crawler frame rear section (32), and the crawler frame front section (31) and the crawler frame rear section (32) are connected.

10. A mechanical device, characterized in that: Comprising a multi-morphous chassis as described in any one of claims 1-9.

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