Self-propelled conveyor and chassis thereof

Abstract

The utility model discloses a self-propelled conveyor and a chassis thereof. The chassis comprises a frame and two crawler devices, the frame is a multi-span frame and is provided with a lower-layer space for mounting a hydraulic system and an upper-layer space for mounting an electrical system; the two crawler belt devices are respectively arranged on the left side and the right side of the frame and drive the frame to walk and move. The chassis is designed to be composed of the frame and the two crawler belt devices and is matched with the frame to be a multi-span type frame, so that the installation height of the platform is effectively reduced to 800 mm from original 1200 mm and is reduced by 33%, the gravity center of the whole mechanism is obviously reduced, and the overall walking stability is greatly improved by reducing the gravity center of a conveyor which is a machine with the high gravity center. Compared with the prior art, the crawler trolley has the advantages that large shaking is avoided during walking, normal running is facilitated, meanwhile, a slewing bearing and a slewing platform are omitted, a mounting seat for mounting the slewing bearing on the crawler trolley is omitted, and the manufacturing cost is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of transport vehicles, and in particular to a self-propelled transport vehicle and its chassis. Background Technology

[0002] Self-propelled transport vehicles, as the name suggests, are mechanical devices capable of autonomously transporting materials without external traction or propulsion. These devices are widely used in agriculture, industry, construction, logistics, and many other fields to improve transportation efficiency and reduce labor costs. With continuous technological advancements, self-propelled transport vehicles will become more intelligent and automated, providing more efficient and convenient transportation solutions for various industries. However, it is also necessary to be aware of the potential safety hazards and environmental issues they may pose during use, and to strengthen supervision and protective measures.

[0003] The chassis of current self-propelled transport vehicles mainly consists of three major components: the undercarriage, the slewing platform, and the slewing bearing. This structure is widely used in current construction machinery. However, for self-propelled transport vehicles, there are several drawbacks:

[0004] 1. The overall height of the upper platform is too high, resulting in an excessively high center of gravity for the entire machine. This can cause significant shaking during movement, which is detrimental to normal operation.

[0005] 2. Since self-propelled transporters do not require slewing during operation, the slewing bearing structure is not needed, increasing manufacturing costs.

[0006] Therefore, it is necessary to improve the current self-propelled transport aircraft. Utility Model Content

[0007] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide a self-propelled transport vehicle and its chassis, which can effectively solve the problems of high center of gravity and high manufacturing cost of existing self-propelled transport vehicles.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A chassis includes a frame and two track devices; the frame is a multi-span frame, having a lower space for installing a hydraulic system and an upper space for installing an electrical system; the two track devices are respectively disposed on the left and right sides of the frame, and the two track devices drive the frame to move.

[0010] As a preferred embodiment, the frame includes a lower plate and an upper plate, which are spaced apart vertically from each other. Multiple support plates are welded between the upper plate and the lower plate, forming the aforementioned lower space between the upper plate and the lower plate, and forming the aforementioned upper space above the upper plate.

[0011] As a preferred embodiment, a through hole is formed vertically through the middle of the frame, and the hydraulic system includes a hydraulic valve that is recessed and placed in the through hole.

[0012] As a preferred embodiment, the electrical system includes a motor, an electrical control cabinet, and a radiator. The upper plate is provided with a first mounting plate for mounting the motor, a second mounting plate for mounting the electrical control cabinet, a third mounting plate for mounting the radiator, and a fourth mounting plate for mounting the oil tank. The first and second mounting plates are located on the left and right sides of one end of the upper plate, respectively, and the third and fourth mounting plates are located on the left and right sides of the other end of the upper plate, respectively.

[0013] A self-propelled transporter includes a chassis as described above, a support mechanism, and a conveying device; the support mechanism is disposed on the chassis, and the conveying device is disposed on the support mechanism.

[0014] As a preferred embodiment, the front and rear sides of the chassis are respectively provided with a first connecting seat and a second connecting seat. The support mechanism includes a first support component and a second support component. The lower ends of the first support component and the second support component are respectively connected and fixed to the first connecting seat and the second connecting seat. The upper ends of the first support component and the second support component are separated from each other and are both fixedly connected to the conveying device.

[0015] As a preferred embodiment, the first support assembly includes two first support rods, multiple first crossbars, and a first fixed seat; the first connecting seat consists of two separate first support rods, which are separated to the left and right and extend upward at an angle. The lower ends of the two first support rods are fixedly connected to the two first connecting seats respectively. The multiple first crossbars are arranged parallel to each other at intervals. The two ends of each first crossbar are welded and fixed to the two first support rods respectively. The two ends of the first fixed seat are fixedly connected to the upper ends of the two first support rods respectively, and the first fixed seat is fixedly connected to the conveying device.

[0016] As a preferred option, a connecting rod connects the bottommost first crossbar to the chassis.

[0017] As a preferred embodiment, the second support assembly includes two second support rods, multiple second crossbars, and a second fixed seat; the second connecting seat consists of two separate second support rods, which are separated to the left and right and extend upward at an angle. The lower ends of the two second support rods are fixedly connected to the two second connecting seats respectively. The multiple second crossbars are arranged parallel to each other at intervals. The two ends of each second crossbar are welded and fixed to the two second support rods respectively. The two ends of the second fixed seat are fixedly connected to the upper ends of the two second support rods respectively, and the second fixed seat is fixedly connected to the conveying device.

[0018] As a preferred embodiment, the conveying device is a belt conveyor.

[0019] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0020] First, by designing the chassis to consist of a frame and two tracked devices, and using a multi-span frame, the platform installation height is effectively reduced from the original 1200mm to 800mm, a reduction of 33%. The overall center of gravity of the mechanism is significantly lowered. In machinery like transport aircraft with a high center of gravity, lowering the center of gravity greatly improves the overall stability of the walking system, reducing vibrations during movement and facilitating normal operation. At the same time, the number of slewing bearings and slewing platforms is reduced, and the mounting brackets used for installing slewing bearings on the tracked undercarriage are also eliminated, resulting in a significant reduction in manufacturing costs.

[0021] Second, by setting the first connecting seat and the second connecting seat on the front and rear sides of the chassis respectively, and cooperating with the support mechanism including the first support component and the second support component, the first support component and the second support component are respectively installed and connected to the first connecting seat and the second connecting seat, the overall structure is stronger and has better stability and durability than the original slewing platform, which can increase the load-bearing capacity by 20%.

[0022] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0023] Figure 1 This is a perspective view of a preferred embodiment of the present utility model;

[0024] Figure 2 This is a perspective view of another preferred embodiment of the present invention;

[0025] Figure 3 This is a three-dimensional schematic diagram of the chassis in a preferred embodiment of the present invention;

[0026] Figure 4 This is a three-dimensional schematic diagram of the chassis from another angle in a preferred embodiment of the present invention;

[0027] Figure 5 This is a three-dimensional schematic diagram of the frame in a preferred embodiment of the present invention;

[0028] Figure 6 This is a three-dimensional schematic diagram of the frame from another angle in a preferred embodiment of the present invention;

[0029] Figure 7 This is a perspective view of the first support component in a preferred embodiment of the present invention;

[0030] Figure 8This is a three-dimensional schematic diagram of the second support component in a preferred embodiment of the present invention.

[0031] Explanation of reference numerals in the attached diagram:

[0032] 10. Chassis 11. Frame

[0033] 111. Lower layer board; 112. Upper layer board

[0034] 113. Support plate; 114. First mounting plate

[0035] 115. Second mounting plate; 116. Third mounting plate

[0036] 117. Fourth mounting plate; 12. Track assembly

[0037] 13. First connecting seat; 14. Second connecting seat

[0038] 101. Lower Space 102. Upper Space

[0039] 103, Through hole 20, Support mechanism

[0040] 21. First support assembly; 211. First support rod

[0041] 212, First crossbar; 213, First fixed seat

[0042] 214. First reinforcing plate; 215. Connecting rod

[0043] 22. Second support assembly; 221. Second support rod

[0044] 222, Second crossbar; 223, Second fixed seat

[0045] 224. Second reinforcing plate; 30. Conveying device

[0046] 40. Hydraulic system 41. Hydraulic valve

[0047] 50. Electrical system 51. Motor

[0048] 52. Electrical control cabinet 53. Radiator

[0049] 60. Fuel tank. Detailed Implementation

[0050] Please refer to Figures 1 to 8 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a chassis 10, a support mechanism 20, and a conveying device 30.

[0051] The chassis 10 includes a frame 11 and two track devices 12. The frame 11 is a multi-span frame, and the frame 12 has a lower space 101 for installing the hydraulic system 40 and an upper space 102 for installing the electrical system 50, avoiding design overlap, reducing interference, and improving the convenience of equipment maintenance. The two track devices 12 are respectively located on the left and right sides of the frame 11, and the two track devices 12 drive the frame 11 to move.

[0052] Specifically, the frame 11 includes a lower plate 111 and an upper plate 112, which are spaced vertically apart. Multiple support plates 113 are welded between the upper plate 112 and the lower plate 111, forming the aforementioned lower space 101 between them. An upper space 102 is formed above the upper plate 112. The support plates 113, the upper plate 112, and the lower plate 111 are all made of high-strength steel plates. Furthermore, a through hole 103 is formed vertically through the middle of the frame 11, penetrating both the upper plate 112 and the lower plate 111. The hydraulic system 40 includes a hydraulic valve 41, which is recessed and placed within the through hole 103, further saving installation space and facilitating maintenance of the hydraulic valve 41 from the bottom. Furthermore, the electrical system 50 includes a motor 51, an electrical control cabinet 52, and a radiator 53. The upper plate 112 is provided with a first mounting plate 114 for mounting the motor 51, a second mounting plate 115 for mounting the electrical control cabinet 52, a third mounting plate 116 for mounting the radiator 53, and a fourth mounting plate 117 for mounting the oil tank 60. The first mounting plate 114 and the second mounting plate 115 are respectively located on the left and right sides of one end of the upper plate 112, and the third mounting plate 116 and the fourth mounting plate 117 are respectively located on the left and right sides of the other end of the upper plate 112. Furthermore, the chassis 10 has a first connecting seat 13 and a second connecting seat 14 respectively located on its front and rear sides. There are two first connecting seats 13, arranged separately on the left and right sides, both of which are welded and fixed to the lower plate 111 and upper plate 112 of the frame 11. Similarly, there are two second connecting seats 14, also arranged separately on the left and right sides, both of which are welded and fixed to the lower plate 111 and upper plate 112 of the frame 11. The structure of the frame 11 is easy to standardize and modularize, integrating auxiliary welding fixtures with the main component installation load-bearing center, saving costs and facilitating pre-assembly of main components for overall assembly, thus shortening the manufacturing period. When the frame 11 adopts this multi-span integral frame, the overall structure has good integrity and rigidity, and the design of the motor 51 mounting location also achieves good seismic resistance.

[0053] The support mechanism 20 is mounted on the chassis 10, and the conveying device 30 is mounted on the support mechanism 20. In this embodiment, the support mechanism 20 includes a first support component 21 and a second support component 22. The lower ends of the first support component 21 and the second support component 22 are respectively connected and fixed to the first connecting seat 13 and the second connecting seat 14, which greatly reduces the installation height of the lower end of the first support component 21 and the second support component 22. The upper ends of the first support component 21 and the second support component 22 are separate from each other and are both fixedly connected to the conveying device 30. The height of the first support component 21 is different from the height of the second support component 22. Specifically:

[0054] like Figure 7 As shown, the first support assembly 21 includes two first support rods 211, multiple first crossbars 212, and a first fixing seat 213. The two first support rods 211 are arranged separately to the left and right and extend upward at an incline. The lower ends of the two first support rods 211 are fixedly connected to the two first connecting seats 13 respectively. The multiple first crossbars 212 are arranged parallel to each other at intervals. The two ends of each first crossbar 212 are welded and fixed to the two first support rods 211 respectively. The two ends of the first fixing seat 213 are fixedly connected to the upper ends of the two first support rods 210 respectively, and the first fixing seat 213 is fixedly connected to the conveying device 30. In addition, a first reinforcing plate 214 is welded and fixed between the outer side of each first crossbar 212 and the outer side of the first support rod 211 to increase the structural strength of the connection and improve the support strength. Furthermore, a connecting rod 215 connects the lowermost first crossbar 212 to the chassis 10 to improve the connection support strength.

[0055] like Figure 8 As shown, the second support assembly 22 includes two second support rods 221, multiple second crossbars 222, and a second fixing seat 223. The two second support rods 221 are arranged separately to the left and right and extend upward at an angle. The lower ends of the two second support rods 221 are fixedly connected to the two second connecting seats 14 respectively. The multiple second crossbars 222 are arranged parallel to each other at intervals. The two ends of each second crossbar 222 are welded and fixed to the two second support rods 221 respectively. The two ends of the second fixing seat 223 are fixedly connected to the upper ends of the two second support rods 221 respectively, and the second fixing seat 223 is fixedly connected to the conveying device 30. In addition, a second reinforcing plate 224 is welded and fixed between the outer side of each second crossbar 222 and the outer side of the second support rod 221 to increase the structural strength of the connection and improve the support strength.

[0056] The conveying device 30 is a belt conveyor, and its specific structure and working principle are existing technologies. The specific structure and working principle of the conveying device 30 will not be described in detail here.

[0057] The working principle of this embodiment is described in detail below:

[0058] During operation, the control system controls the track device 12, causing the track device 12 to drive the conveyor to move. When it reaches the place where materials need to be conveyed, the track device 12 stops moving, and then the conveying device 30 is started to convey the materials.

[0059] The key design features of this invention are as follows: First, by designing the chassis as a frame and two tracked devices, with the frame being a multi-span frame, the platform installation height is effectively reduced from the original 1200mm to 800mm, a reduction of 33%. This significantly lowers the overall center of gravity, which greatly improves the overall stability of transport machinery with its high center of gravity, reducing vibrations during movement and facilitating normal operation. It also significantly reduces the turning radius on roads, making movement easier. Simultaneously, it eliminates the need for a slewing bearing and slewing platform, and the mounting base for the slewing bearing on the tracked undercarriage is eliminated, resulting in a substantial reduction in manufacturing costs. Second, by installing a first connecting seat and a second connecting seat on the front and rear sides of the chassis, respectively, and coordinating with a support mechanism including a first support component and a second support component, which are respectively connected to the first and second connecting seats, the overall structure is stronger and offers better stability and durability than the original slewing platform, increasing load-bearing capacity by 20%.

[0060] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A chassis, characterized in that: It includes a frame and two track devices; the frame is a multi-span frame, which has a lower space for installing a hydraulic system and an upper space for installing an electrical system; the two track devices are respectively located on the left and right sides of the frame, and the two track devices drive the frame to move.

2. The chassis according to claim 1, characterized in that: The frame includes a lower plate and an upper plate, which are spaced apart vertically from each other. Multiple support plates are welded between the upper plate and the lower plate, forming the aforementioned lower space between the upper plate and the lower plate, and forming the aforementioned upper space above the upper plate.

3. The chassis according to claim 2, characterized in that: A through hole is formed vertically through the middle of the frame, and the hydraulic system includes a hydraulic valve that is recessed and placed in the through hole.

4. The chassis according to claim 2, characterized in that: The electrical system includes a motor, an electrical control cabinet, and a radiator. The upper plate is provided with a first mounting plate for mounting the motor, a second mounting plate for mounting the electrical control cabinet, a third mounting plate for mounting the radiator, and a fourth mounting plate for mounting the oil tank. The first and second mounting plates are located on the left and right sides of one end of the upper plate, respectively, and the third and fourth mounting plates are located on the left and right sides of the other end of the upper plate, respectively.

5. A self-propelled transport vehicle, characterized in that: It includes a chassis as described in any one of claims 1-4, a support mechanism, and a conveying device; the support mechanism is disposed on the chassis, and the conveying device is disposed on the support mechanism.

6. The self-propelled transporter according to claim 5, characterized in that: The chassis is respectively provided on the front and rear sides of the first connecting seat and the second connecting seat. The support mechanism includes a first support component and a second support component. The lower end of the first support component and the lower end of the second support component are respectively connected and fixed to the first connecting seat and the second connecting seat. The upper end of the first support component and the upper end of the second support component are separated from each other and are both fixedly connected to the conveying device.

7. The self-propelled transporter according to claim 6, characterized in that: The first support assembly includes two first support rods, multiple first crossbars, and a first fixed seat. The first connecting seat consists of two separate first support rods, which are separated to the left and right and extend upward at an angle. The lower ends of the two first support rods are fixedly connected to the two first connecting seats respectively. The multiple first crossbars are arranged in parallel with vertical spacing. The two ends of each first crossbar are welded and fixed to the two first support rods respectively. The two ends of the first fixed seat are fixedly connected to the upper ends of the two first support rods respectively, and the first fixed seat is fixedly connected to the conveying device.

8. The self-propelled transporter according to claim 7, characterized in that: The first crossbar at the bottom is connected to the chassis by a connecting rod.

9. The self-propelled transporter according to claim 6, characterized in that: The second support assembly includes two second support rods, multiple second crossbars, and a second fixed seat. The second connecting seat consists of two separate second support rods. The two second support rods are separated to the left and right and extend upward at an angle. The lower ends of the two second support rods are fixedly connected to the two second connecting seats respectively. The multiple second crossbars are arranged parallel to each other at intervals. The two ends of each second crossbar are welded and fixed to the two second support rods respectively. The two ends of the second fixed seat are fixedly connected to the upper ends of the two second support rods respectively, and the second fixed seat is fixedly connected to the conveying device.

10. The self-propelled transporter according to claim 5, characterized in that: The conveying device is a belt conveyor.

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