Mountain excavation operation vehicle

Abstract

The invention relates to the technical field of engineering vehicle chassis, in particular to a mountain excavation operation vehicle which comprises a vehicle frame formed by vertically welding transverse pipes at the two ends of two parallel longitudinal pipes. The four sets of wheels are distributed at the four ends of the two transverse pipes and used for bearing the frame in a rolling mode; the wheel is formed by sleeving a tire with a wheel ring, the wheel ring is sleeved with a suspension, the suspension is provided with a short pipe along the axis of the wheel ring, and a first connecting rod is welded to the portion, on the outer wall of the short pipe, of the suspension in an X-shaped layout mode. The height of the vehicle chassis can be increased by more than two times, the trafficability of the mountain excavation operation vehicle in complex mountain terrains can be obviously improved, and the vehicle chassis can be better prevented from being scratched by ground protrusions; the problem that in the prior art, due to the fact that a suspension and a transmission shaft need to be connected to the axis positions of the wheels, the trafficability and safety of the wheels on complex mountain terrains or when the wheels meet protrusions are affected is effectively solved.

Description

Technical Field

[0001] This invention relates to the field of engineering vehicle chassis technology, and in particular to a mountain excavation vehicle. Background Technology

[0002] Miniature excavators are well-suited for excavation work in dense forests due to their small size and light weight. Currently, miniature excavators are mainly divided into tracked and wheeled types. Tracked chassis are prone to damaging the ground and generally have a slow speed, making it inconvenient to move between work sites and requiring specialized vehicles for transportation. Wheeled chassis, on the other hand, are more flexible than tracked chassis because they have rubber tires and are more maneuverable. However, the disadvantages of wheeled chassis are that, in addition to the superior all-terrain performance of tracks compared to tires, the suspension and drive shaft of wheeled chassis need to be connected to the axle of the wheels, which can negatively impact the passability and safety when encountering complex mountainous terrain or protrusions. Therefore, this invention proposes a mountain excavator that eliminates the traditional drive shaft and connects the frame to the upper part of the wheels. Summary of the Invention

[0003] In view of the problems that the suspension and drive shaft of the wheeled mountain excavator in the above or prior art need to be connected to the axle of the wheel, which affects the passability and safety of the wheel when encountering complex mountain terrain or protrusions, the present invention is proposed.

[0004] Therefore, the purpose of this invention is to provide a mountain excavation vehicle.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a mountain excavation vehicle, comprising: a frame, consisting of two parallel longitudinal tubes with horizontal tubes welded vertically at both ends; wheels, four sets of wheels distributed at the four ends of the two horizontal tubes for rolling support of the frame; each wheel consists of a rim fitted with a tire, and the rim is fitted with a suspension, the suspension having a short tube along the rim axis, a first connecting rod welded to the outer wall of the short tube in an "X" shape, the connecting rod having a second connecting rod welded parallel to the rim at the four corners of the "X" shape, and both ends of the second connecting rod having rollers rotatably fitted onto them, the rollers being in rolling connection with the inner circumferential wall of the rim, the horizontal tube fitting into the top opening of the "X" shape and welded and fixed to the connecting rod; the rim extending into an annular portion to one side of the tire, and the outer circumferential wall of the annular portion having toothed grooves arranged in a circular array about the annular portion, a drive motor being provided at the top of the horizontal tube, and the output shaft of the drive motor being connected to a drive wheel that meshes with the toothed grooves.

[0006] As a preferred embodiment of the mountain excavation vehicle of the present invention, wherein: both ends of the roller are provided with connecting rods, and the connecting rods between the two rollers on the connecting rods are arranged in an "M" shape.

[0007] As a preferred embodiment of the mountain excavation vehicle of the present invention, the cross-sectional profile of the horizontal tube is an inverted trapezoid, and the suspension tilt angle of the "X"-shaped layout is in close contact with the inclined surfaces on both sides of the horizontal tube.

[0008] As a preferred embodiment of the mountain excavation vehicle of the present invention, wherein: a connecting rod 3 is vertically and fixedly connected between the two connecting rods 2 at the bottom of the "X"-shaped layout of the suspension.

[0009] As a preferred embodiment of the mountain excavation vehicle of the present invention, the wheel rim is hollow inside and has a uniform wall thickness. A support ring is fixedly connected inside the wheel rim. The support rings are evenly distributed along the axial direction of the wheel rim. The adjacent support rings form a 60-degree angle. The cross-section of the wheel rim and the support rings is composed of the outer wall cross-section of the wheel rim, the inner wall cross-section, and the cross-section of the adjacent support rings, forming a trapezoidal profile.

[0010] As a preferred embodiment of the mountain excavation vehicle of the present invention, the inner circumferential wall of the wheel rim is provided with a groove along its circumference, and the groove is provided between two adjacent support rings. A pair of grooves are provided at both ends of the wheel rim, and the grooves are connected to the rollers at the corresponding roller positions.

[0011] As a preferred embodiment of the mountain excavation vehicle of the present invention, the two ends of the wheel rim are coaxially covered with circular baffles, and the horizontal tube passes through the baffles, and both baffles are fixedly connected to the short tube.

[0012] As a preferred embodiment of the mountain excavation vehicle of the present invention, a sealing ring is fitted inside the annular portion of the wheel rim, the sealing ring is circular, and the sealing ring closes the tooth groove from the inside of the wheel rim.

[0013] As a preferred embodiment of the mountain excavation vehicle of the present invention, wherein: an elastic steel wire ring is provided inside the sealing ring, and the outer peripheral wall of the sealing ring is provided with protrusions in a ring array, and the protrusions are sleeved with the tooth groove.

[0014] As a preferred embodiment of the mountain excavation vehicle of the present invention, a motor base is welded to the upper surface of the horizontal tube, and the housing of the drive motor is fixedly connected to the motor base, and the drive wheel is rotatably connected to the motor base.

[0015] The beneficial effects of the mountain excavator of the present invention: The mountain excavator of the present invention replaces the traditional wheel spokes by incorporating an "X"-shaped suspension inside the wheel rim to roll and support the top and bottom of the rim. The frame and the top of the suspension are connected by a "trapezoidal" horizontal tube adapted to the shape of the suspension, so that the frame is connected to the upper part of the wheel rim axis. This can increase the height of the chassis relative to the traditional wheeled running gear by more than twice, which can significantly improve the passability of the mountain excavator in complex mountainous terrain and better avoid the scraping of the chassis by ground protrusions. It effectively solves the problem in the prior art that the suspension and drive shaft of the existing wheeled mountain excavator need to be connected to the wheel axis, which affects the passability and safety of the wheels when encountering complex mountainous terrain or protrusions. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the chassis structure of a mountain excavator.

[0018] Figure 2 This is a schematic diagram of the wheel structure.

[0019] Figure 3 for Figure 2 A schematic diagram of the structure after the baffle is disassembled.

[0020] Figure 4 This is a cross-sectional view of the wheel rim.

[0021] Figure 5 This is a sectional view of the assembly structure of the wheel rim and the seal ring.

[0022] Figure 6 for Figure 5 Enlarged view of the structure at point A in the middle.

[0023] In the diagram: 100, frame; 101, longitudinal tube; 102, transverse tube; 103, motor mount; 104, drive motor; 105, drive wheel; 200, wheel; 201, tire; 202, suspension; 2021, short tube; 2022, connecting rod one; 2023, connecting rod two; 2024, connecting rod three; 203, roller; 204, wheel rim; 2041, annular part; 2042, support ring; 2043, groove; 2044, toothed groove; 205, sealing ring; 2051, wire ring; 2052, protrusion; 206, baffle. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Example, refer to Figures 1-6 This embodiment provides a mountain excavation vehicle, which improves the passability of the wheel 200 when encountering complex terrain or ground protrusions by moving the connection between the frame 100 and the wheel 200 to the upper part of the wheel 200.

[0026] The present invention includes a frame 100, which is composed of two parallel longitudinal tubes 101 with transverse tubes 102 welded vertically at both ends; four sets of wheels 200 are distributed at the four ends of the two transverse tubes 102 for rolling support of the frame 100; each wheel 200 consists of a rim 204 fitted with a tire 201, and a suspension 202 is fitted onto the rim 204. A short tube 2021 is provided along the axis of the rim 204 in the suspension 202. A connecting rod 2022 is welded to the outer wall of the short tube 2021 in an "X" shape. The connecting rod is located at the four corners of the "X" shape, parallel to the rim 204. The connecting rod 2023 has rollers 203 rotatably sleeved at both ends. The rollers 203 are in rolling connection with the inner circumferential wall of the wheel rim 204. The horizontal tube 102 is sleeved in the top opening of the "X"-shaped layout and welded to the connecting rod. The wheel rim 204 extends into an annular portion 2041 to one side of the tire 201. The outer circumferential wall of the annular portion 2041 is provided with toothed grooves 2044. The toothed grooves 2044 are arranged in a ring array about the annular portion 2041. The top end of the horizontal tube 102 is provided with a drive motor 104. The output shaft of the drive motor 104 is connected to a drive wheel 105 that meshes with the toothed grooves 2044.

[0027] Specifically, the inner circumferential wall of the wheel rim 204 is provided with a groove 2043 recessed around its circumference, and the groove 2043 is located between two adjacent support rings 2042. A pair of grooves 2043 are provided at both ends of the wheel rim 204, and the grooves 2043 are in rolling connection with the rollers 203 at the corresponding positions. The upper surface of the horizontal tube 102 is welded with a motor base 103, and the housing of the drive motor 104 is fixedly connected to the motor base 103. The drive wheel 105 is rotatably connected to the motor base 103.

[0028] This invention provides a mountain excavation vehicle, primarily featuring a wheeled high-chassis walking structure. The purpose is to raise the connection height between the frame 100 and the wheels 200. This is achieved by embedding an "X"-shaped suspension 202 within the wheel rim 204 of the wheel 200, providing rolling support to the top and bottom of the rim 204, replacing traditional wheel spokes. A trapezoidal cross tube 102, adapted to the shape of the suspension 202, connects the top of the frame 100 and the suspension 202, allowing the frame 100 to connect to the upper part of the wheel rim 204's axis. By stamping toothed grooves 2044 into the wheel rim 204, the entire rim 204 is considered part of a transmission reducer. The drive motor 104 directly drives the wheel 105 to rotate via the drive wheel 105. Each wheel 200 is independently controlled by a drive motor 104. Besides forward and backward movement, similar to a tracked walking mechanism, the vehicle's steering is controlled by adjusting the speed difference between the wheels 200 on both sides of the vehicle. (See reference...) Figure 1 and Figure 2 With the same wheel diameter of 200, this invention can increase the chassis height by more than two times, which can significantly improve the passability of the mountain excavator in complex mountainous terrain and better avoid the scraping of the chassis by ground protrusions.

[0029] To achieve the above-mentioned objectives, the present invention also provides the following technical details:

[0030] First, the wheel rim 204 of the wheel 200 is different from the single-wall structure of the traditional wheel hub. Since the wheel rim 204 of the wheel 200 of the present invention is separate from the suspension 202 that replaces the spokes, higher requirements are placed on the structural strength of the wheel rim 204.

[0031] refer to Figure 4 The structure of the wheel rim 204 is as follows: the interior of the wheel rim 204 is hollow and the wall thickness of the wheel rim 204 is uniform. A support ring 2042 is fixedly connected inside the wheel rim 204. The support rings 2042 are evenly distributed along the axial direction of the wheel rim 204. The adjacent support rings 2042 form a 60-degree angle. The cross-section of the wheel rim 204 and the support rings 2042 is composed of the outer wall section, the inner wall section and the adjacent support rings 2042, forming a trapezoidal profile. The support rings 2042 divide the internal cavity of the wheel rim 204 into multiple smaller annular cavities, thereby increasing the structural strength and compressive strength of the wheel rim 204 and preventing the wheel rim 204 from deforming under load.

[0032] Secondly, the three-dimensional structure of suspension 202, refer to Figure 4The structure consists of rollers 203 with connecting rods 2022 at both ends, and connecting rods 2022 on the two rollers 2023 arranged in an "M" shape. The cross-sectional profile of the transverse tube 102 is an inverted trapezoid. The "X"-shaped suspension 202 is fitted with the inclined surfaces on both sides of the transverse tube 102. A connecting rod 2024 is vertically fixed between the two connecting rods 2023 at the bottom of the "X"-shaped suspension 202. The projection of the suspension 202 along the axis of the wheel 200 is an "X"-shaped layout. The connecting rods 2022 on both sides of the suspension 202 are... 22. The connecting rods 2022 at both ends of the roller 203 are parallel to each other and perpendicular to the short tube 2021, and are responsible for supporting both ends of the roller 203. The connecting rods 2022 between the pair of rollers 203 have one end connected to the short tube 2021 that is close to each other, and one end connected to the connecting rod 2023 that is far away from each other. Together with the connecting rod 3024, the upper and lower parts of the suspension 202 form two "pyramid" shaped "hourglass" structures with opposite apexes. The purpose is to increase the anti-deformation performance of the suspension 202 in the direction of the wheel 200 axis, as well as the load-bearing performance in the vertical direction.

[0033] Thirdly, the self-protection function of the 204 rims, see reference. Figure 2 and Figure 3 The four wheel rims 204 have circular baffles 206 coaxially covering the openings at both ends, and the horizontal tube 102 passes through the baffles 206. Both baffles 206 are fixedly connected to the short tube 2021. This is mainly to prevent foreign objects from entering the grooves 2043 inside the wheel rims 204 and causing the rollers 203 to roll and get stuck.

[0034] refer to Figure 5 and Figure 6 A sealing ring 205 is fitted inside the annular portion 2041 of the wheel rim 204. The sealing ring 205 is circular and closes the tooth groove 2044 from inside the wheel rim 204. An elastic steel wire ring 2051 is provided inside the sealing ring 205. The outer peripheral wall of the sealing ring 205 has protrusions 2052 distributed in a circular array, and the protrusions 2052 fit into the tooth groove 2044. The sealing ring 205 is made of rubber and is kept circular by the built-in steel wire ring 2051, which also provides the recovery force after being compressed and deformed. The protrusions 2052 can temporarily seal the tooth groove 2044 to prevent foreign objects from entering the tooth groove 2044. The protrusions 2052 at the drive wheel 105 are directly pressed into the tooth groove 2044 by the wheel teeth. After leaving the drive wheel 105, they are reset by the elastic force of the steel wire ring 2051.

[0035] In summary, the present invention provides a mountain excavator that replaces traditional wheel spokes by embedding an "X"-shaped suspension 202 within the wheel rim 204 of the wheel 200 to provide rolling support to the top and bottom of the rim 204. A trapezoidal cross tube 102, adapted to the shape of the suspension 202, connects the frame 100 and the top of the suspension 202, allowing the frame 100 to be connected to the upper part of the wheel rim 204 axis. With the same wheel 200 diameter, the present invention can increase the chassis height by more than two times, significantly improving the mountain excavator's passability in complex mountain terrain and better avoiding scraping of the chassis by ground protrusions. This effectively solves the problem in the prior art where the suspension 202 and drive shaft need to be connected to the wheel 200 axis, affecting the passability and safety of the wheel 200 in complex mountain terrain or when encountering protrusions.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A mountain excavation vehicle, characterized in that, include: The frame (100) is composed of two parallel longitudinal tubes (101) with transverse tubes (102) welded vertically at both ends; Wheels (200), four sets of wheels (200) are distributed at the four ends of two horizontal tubes (102) for rolling support of the frame (100). The wheel (200) consists of a wheel rim (204) fitted with a tire (201), and the wheel rim (204) is fitted with a suspension (202). The suspension (202) has a short tube (2021) along the axis of the wheel rim (204). The suspension (202) has a connecting rod (2022) welded to the outer wall of the short tube (2021) in an "X" shape. The connecting rod is located at the four corners of the "X" shape and parallel to the wheel rim (204) with a connecting rod (2023). Both ends of the connecting rod (2023) are rotatably fitted with rollers (203). The rollers (203) are rollingly connected to the inner circumferential wall of the wheel rim (204). The horizontal tube (102) is fitted into the top opening of the "X" shape and welded and fixed to the connecting rod. The wheel rim (204) extends an annular portion (2041) to one side of the tire (201), and the outer peripheral wall of the annular portion (2041) is provided with a toothed groove (2044). The toothed groove (2044) is arranged in a ring array about the annular portion (2041). The top end of the horizontal tube (102) is provided with a drive motor (104), and the output shaft of the drive motor (104) is connected to a drive wheel (105) that meshes with the toothed groove (2044).

2. The mountain excavation vehicle as described in claim 1, characterized in that: Both ends of the roller (203) are connected by a first link (2022), and the first link (2022) between the two rollers (203) on the second link (2023) is distributed in an "M" shape.

3. The mountain excavation vehicle as described in claim 2, characterized in that: The cross-sectional profile of the horizontal tube (102) is an inverted trapezoid, and the inclination angle of the suspension (202) with an "X" shape is in contact with the inclined surfaces on both sides of the horizontal tube (102).

4. The mountain excavation vehicle as described in claim 3, characterized in that: The suspension (202) has a vertically fixed connection between two connecting rods two (2023) at the bottom of the "X"-shaped layout, and a connecting rod three (2024).

5. The mountain excavation vehicle as described in claim 1, characterized in that: The rim (204) is hollow inside and has a uniform wall thickness. A support ring (2042) is fixedly connected inside the rim (204). The support rings (2042) are evenly distributed along the axial direction of the rim (204). The adjacent support rings (2042) form a 60-degree angle. The cross-section of the rim (204) and the support rings (2042) is composed of the outer wall cross-section, the inner wall cross-section, and the cross-section of the adjacent support rings (2042) to form a trapezoidal profile.

6. The mountain excavation vehicle as described in claim 5, characterized in that: The inner circumferential wall of the wheel rim (204) is provided with a groove (2043) along its circumference, and the groove (2043) is provided between two adjacent support rings (2042). A pair of grooves (2043) are provided at both ends of the wheel rim (204), and the grooves (2043) are in rolling connection with the rollers (203) at the corresponding positions.

7. The mountain excavation vehicle as described in claim 1, characterized in that: Both ends of the wheel rim (204) are coaxially covered with circular baffles (206), and the horizontal tube (102) passes through the baffles (206). Both baffles (206) are fixedly connected to the short tube (2021).

8. The mountain excavation vehicle as described in claim 1, characterized in that: A sealing ring (205) is fitted inside the annular portion (2041) of the wheel rim (204). The sealing ring (205) is circular and closes the tooth groove (2044) from inside the wheel rim (204).

9. The mountain excavation vehicle as described in claim 8, characterized in that: The sealing ring (205) is provided with an elastic steel wire ring (2051), and the outer peripheral wall of the sealing ring (205) is provided with protrusions (2052) arranged in a ring array, and the protrusions (2052) are sleeved with the tooth groove (2044).

10. The mountain excavation vehicle as described in claim 1, characterized in that: The upper surface of the horizontal tube (102) is welded with a motor base (103), and the housing of the drive motor (104) is fixedly connected to the motor base (103), and the drive wheel (105) is rotatably connected to the motor base (103).

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