Forestry chassis and forestry vehicles

Abstract

The present invention relates to a forest chassis and a forest vehicle, comprising: a front frame; a rear frame; and a pitch adjustment mechanism, wherein the pitch adjustment mechanism comprises an adjustment seat, a pitch axis, an intermediate connecting frame, an adjustment execution assembly and an adjustment drive assembly, wherein the adjustment seat is fixedly mounted on the rear frame, the pitch axis is arranged on the adjustment seat, and the pitch axis is rotationally connected to the intermediate connecting frame, the intermediate connecting frame is connected to the front frame, the adjustment drive assembly is arranged on the intermediate connecting frame and is drivingly connected to the adjustment execution assembly, and the adjustment execution assembly can rotate circumferentially in a vertical plane and slide with the adjustment seat to drive the front frame to actively adjust the pitch relative to the rear frame. The invention can enhance the passing ability of forest vehicles for various complex forest terrains, ensure the structural safety of the vehicle itself, and improve the service life.

Description

Technical Field

[0001] The invention relates to the technical field of forestry equipment, in particular to a forestry chassis and a forestry vehicle. Background Art

[0002] The operation of the chassis of forest vehicles in forest areas is the basis of modern forestry mechanized afforestation, tending, thinning and selective felling, and is the premise for realizing the automation and intelligence of modern forestry. The driving conditions in forest areas are harsh, with many terrain environments such as slopes, obstacles, deep depressions and steep convexities. The chassis of ordinary forest vehicles are difficult to adapt to the road conditions in forest areas. Therefore, it is very important to design and develop a special forest chassis suitable for forest vehicles. Summary of the invention

[0003] Based on this, it is necessary to provide a forest chassis and a forest vehicle, aiming to solve the problem that the existing technology has poor adaptability to forest roads.

[0004] A forest chassis, characterized by comprising:

[0005] Front frame;

[0006] rear frame; and

[0007] A pitch adjustment mechanism, the pitch adjustment mechanism comprises an adjustment seat, a pitch axis, an intermediate connecting frame, an adjustment execution assembly and an adjustment drive assembly, the adjustment seat is fixedly mounted on the rear frame body, the pitch axis is arranged on the adjustment seat, and the pitch axis is rotationally connected to the intermediate connecting frame, the intermediate connecting frame is connected to the front frame body, the adjustment drive assembly is arranged on the intermediate connecting frame and is drivingly connected to the adjustment execution assembly, the adjustment execution assembly can rotate circumferentially in a vertical plane and slidably cooperate with the adjustment seat to drive the front frame body to actively adjust the pitch relative to the rear frame body.

[0008] The forest chassis of this scheme is used in forest vehicles. It has active deformation performance, which can enhance the road contouring ability of the wheels, thereby achieving the purpose of vibration reduction and improving terrain passing ability, and meeting the requirements for driving on forest roads. Specifically, since the front frame and the rear frame are connected through the pitch adjustment mechanism, when the forest vehicle travels through a bumpy or obstacle-ridden forest road, the adjustment drive assembly starts and drives the adjustment execution assembly to rotate circumferentially in the vertical plane. The adjustment execution assembly can then slide back and forth relative to the adjustment seat and simultaneously apply a thrust force to the adjustment seat in the up and down directions. On this basis, the adjustment seat can drive the rear frame to rotate and swing upward or downward relative to the front frame in the vertical plane through the pitch axis, that is, the active pitch adjustment of the front frame and the rear frame to deflect and float up and down according to the terrain conditions is realized, which can not only effectively buffer and reduce external vibrations, but also help the forest chassis to climb over obstacles such as slopes, so that the wheels installed on the forest chassis can have the ability to follow the road surface (that is, ensure that the wheels are always close to the road surface according to the ups and downs of the road surface), enhance the forest vehicle's ability to pass various complex forest terrains, ensure the vehicle's own structural safety, and improve its service life.

[0009] In one embodiment, the adjustment seat is provided with an arc-shaped extending slide groove, and the adjustment execution component includes a slider, a rotating body, a connecting frame, a transmission wheel, a driving member and a driving wheel. The slider is slidably inserted in the slide groove, the rotating body is rotatably set on the slider, and the rotating body is connected to the transmission wheel, the transmission wheel is matched with the driving wheel, and the driving wheel is drivingly connected to the driving member, and the driving member is set on the intermediate connecting frame.

[0010] In one embodiment, the driving member is configured as a motor, the driving wheel is configured as a driving gear, the transmission wheel is configured as a transmission gear, the driving gear is meshed with the transmission gear, and the axle of the driving gear and the axle of the transmission gear are parallel to each other and are both in a horizontal plane.

[0011] In one of the embodiments, the sliding block is concavely provided with a spherical groove, the rotating body is configured as a spherical body, and the spherical body is rotatably installed in the spherical groove.

[0012] In one of the embodiments, the forest chassis also includes a deflection drive mechanism and a rotating hinge shaft, one end of the rotating hinge shaft is rotatably connected to the intermediate connecting frame, and the rotating hinge shaft can rotate and swing relative to the intermediate connecting frame in a horizontal plane, and the other end of the rotating hinge shaft is rotatably connected to the front frame body, and the rotating hinge shaft can twist relative to the front frame body in a vertical plane, and the deflection drive mechanism is connected between the rotating hinge shaft and the intermediate connecting frame, and the deflection drive mechanism is used to drive the front frame body to swing left or right relative to the rear frame body in a horizontal plane.

[0013] In one embodiment, the deflection drive mechanism includes a first deflection drive member and a second deflection drive member, wherein the drive seat of the first deflection drive member is hinged to the left side of the intermediate connecting frame, the drive rod of the first deflection drive member is hinged to the left side of the rotating hinge shaft, the drive seat of the second deflection drive member is hinged to the right side of the intermediate connecting frame, and the drive rod of the second deflection drive member is hinged to the right side of the rotating hinge shaft; wherein the first deflection drive member and the second deflection drive member are coplanarly arranged and arranged at an angle; the first deflection drive member and the second deflection drive member are used to output telescopic linear power.

[0014] In one embodiment, the forest chassis further includes four wheels, two of which are rotatably mounted on the left and right sides of the front frame body, and the remaining two wheels are rotatably mounted on the left and right sides of the rear frame body.

[0015] In one of the embodiments, the forest chassis also includes four amplitude adjustment mechanisms, two of which are respectively installed on the left and right sides of the front frame body, and the remaining two are respectively installed on the left and right sides of the rear frame body, and the wheels are rotationally installed on the amplitude adjustment mechanisms one by one.

[0016] In one embodiment, the amplitude adjustment mechanism includes a first amplitude frame, a second amplitude frame, a third amplitude frame, a first amplitude driving member and a second amplitude driving member, the first amplitude frame is connected to the driving shafts on the front frame body and the rear frame body, one end of the second amplitude frame is rotatably connected to the first amplitude frame, the third amplitude frame is rotatably arranged on the first amplitude frame, the driving seat of the first amplitude driving member is hinged to the first amplitude frame, the driving rod of the first amplitude driving member is hinged to the third amplitude frame, the driving seat of the second amplitude driving member is hinged to the third amplitude frame, and the driving rod of the second amplitude driving member is hinged to the second amplitude frame; wherein, the first amplitude driving member and the second amplitude driving member are used to output telescopic linear power.

[0017] A forest vehicle comprises the forest chassis as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic structural diagram of a forest chassis according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A structural diagram from another perspective;

[0022] Figure 3 for Figure 2 A structural diagram from another perspective;

[0023] Figure 4 for Figure 3 A structural diagram from another perspective;

[0024] Figure 5 for Figure 4 Schematic diagram of the local enlarged structure at point A in the middle.

[0025] Description of reference numerals:

[0026] 10. front frame; 20. middle connecting frame; 30. rear frame; 40. deflection drive mechanism; 41. first deflection drive member; 42. second deflection drive member; 50. pitch axis; 60. pitch adjustment mechanism; 61. adjustment seat; 611. slide groove; 62. slider; 63. rotating body; 64. connecting frame; 65. transmission wheel; 66. drive member; 67. driving wheel; 70. wheel; 80. amplitude adjustment mechanism; 81. first amplitude frame; 82. second amplitude frame; 83. third amplitude frame; 84. first amplitude drive member; 85. second amplitude drive member; 90. rotating hinge shaft. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0028] The embodiment of the present application provides a forest vehicle, which is used in patrol and other work situations in forest areas, and is used to load equipment such as logging, fire fighting, and detection. The base of the forest vehicle is a forest chassis. In this solution, the forest chassis has multi-degree-of-freedom deformation capabilities, which is conducive to enhancing the vibration reduction and ground contouring capabilities of the forest vehicle, as well as the ability to pass through various complex terrains.

[0029] like Figures 1 to 4 As shown, a forest chassis is shown in an embodiment of the present application, which includes: a front frame body 10, a rear frame body 30 and a pitch adjustment mechanism 60.

[0030] The pitch adjustment mechanism 60 includes an adjustment seat 61, a pitch axis 50, an intermediate connecting frame 20, an adjustment execution assembly and an adjustment drive assembly. The adjustment seat 61 is fixedly mounted on the rear frame body 30. The pitch axis 50 is arranged on the adjustment seat 61, and the pitch axis 50 is rotatably connected to the intermediate connecting frame 20. The intermediate connecting frame 20 is connected to the front frame body 10. The adjustment drive assembly is arranged on the intermediate connecting frame 20 and is drivingly connected to the adjustment execution assembly. The adjustment execution assembly can rotate circumferentially in a vertical plane and slidably cooperate with the adjustment seat 61 to drive the front frame body 10 to actively adjust the pitch relative to the rear frame body 20.

[0031] The forest chassis of this scheme is used in forest vehicles. It has active deformation performance, which can enhance the road contouring ability of the wheels, thereby achieving the purpose of vibration reduction and improving terrain passing ability, and meeting the requirements for driving on forest roads. Specifically, since the front frame body 10 and the rear frame body 20 are connected through the pitch adjustment mechanism 60, when the forest vehicle travels on a bumpy or obstacle-ridden forest road, the adjustment drive assembly is started and drives the adjustment actuator assembly to rotate circumferentially in the vertical plane, and the adjustment actuator assembly can then slide back and forth relative to the adjustment seat 61 and simultaneously apply a thrust force in the up and down directions to the adjustment seat 61. On this basis, the adjustment seat 61 can drive the rear frame body 20 to rotate and swing upward or downward relative to the front frame body 10 in the vertical plane through the pitch axis 50, that is, the active pitch adjustment of the front frame body 10 and the rear frame body 20 to deflect and float up and down according to the terrain conditions is realized, which can not only effectively buffer and reduce external vibrations, but also help the forest chassis to climb over obstacles such as slopes, so that the wheels 70 installed on the forest chassis can have the ability to follow the road surface (that is, to ensure that the wheels 70 are always close to the road surface according to the ups and downs of the road surface), enhance the forest vehicle's ability to pass various complex forest terrains, ensure the vehicle's own structural safety, and improve its service life.

[0032] In this embodiment, the forest chassis further includes four wheels 70, two of which are rotatably mounted on the left and right sides of the front frame 10, and the remaining two wheels 70 are rotatably mounted on the left and right sides of the rear frame 30. It can be understood that the four wheels 70 are arranged in a rectangular structure.

[0033] The forest chassis with a four-wheel structure can make the forest vehicle land smoothly, each wheel 70 has a relative velocity instant center when turning, has the characteristics of small turning radius, lightness and flexibility, etc. At the same time, it can solve the shortcomings of the traditional multi-wheel structure forest chassis: each wheel 70 has no relative velocity instant center when turning, the lateral friction of the wheel 70 is large when turning, which accelerates the wear of the tire, and the articulated structure or the steering structure is subjected to a large impact, which is easy to cause the structure to be damaged.

[0034] Please continue reading Figure 2 and Figure 5 In some embodiments, the adjustment seat 61 is provided with an arc-shaped extending slide groove 611, and the adjustment execution component includes a slider 62, a rotating body 63, a connecting frame 64, a transmission wheel 65, a driving member 66 and a driving wheel 67. The slider 62 is slidably inserted in the slide groove 611, the rotating body 63 is rotatably set on the slider 62, and the rotating body 63 is connected to the transmission wheel 65, the transmission wheel 65 is matched with the driving wheel 67 for transmission, and the driving wheel 67 is drivingly connected to the driving member 66, and the driving member 66 is set on the intermediate connecting frame 20.

[0035] As described in the above solution, the pitch adjustment mechanism 60 is used to adjust the front frame body 10 to pitch relative to the rear frame body 30 (the meaning of pitch can be understood as the front frame body 10 and the rear frame body 30 that were originally in a coplanar state becoming a non-coplanar state), and this pitch adjustment is achieved by active control. Specifically, the pitch adjustment mechanism 60 is provided with the power required for the pitch action by the adjustment drive component and the adjustment execution component working together.

[0036] When the forest vehicle is traveling on a bumpy road, in order to ensure that the four wheels 70 have the ability to follow the road surface, the wheels 70 can always effectively touch the ground, reduce the vibration of the vehicle when traveling, and improve the stability of the vehicle operation. According to the detection signal of the tilt sensor installed on the front frame body 10 and / or the rear frame body 30, the driving member 66 starts and drives the driving wheel 67 to rotate, and the driving wheel 67 synchronously drives the transmission wheel 65 to drive the connecting frame 64 to rotate clockwise or counterclockwise in the vertical plane. At this time, the rotating body 63 applies a downward or upward extrusion force to the slider 62, and the rotating body 63 starts to rotate relative to the slider 62. At the same time, the rotating body 63 pushes or pulls the slider 62 to slide in the slide groove 611, and finally the front frame body 10 swings upward or downward relative to the rear frame body 30, achieving the purpose of the above-mentioned active pitch adjustment.

[0037] Preferably, in the above embodiment, the driving member 66 is configured as a motor, the driving wheel 67 is configured as a driving gear, the transmission wheel 65 is configured as a transmission gear, the driving gear is meshed with the transmission gear, and the axle of the driving gear and the axle of the transmission gear are parallel to each other and are both in a horizontal plane. The driving structure composed of a motor and a gear pair has a stable power transmission and a stable transmission ratio, and is suitable for torsional driving of a front frame body 10 or a rear frame body 30 with a large load. In addition, the installation structure of the motor and the gear pair is compact and occupies a small space, which is conducive to the miniaturization design of the forest chassis.

[0038] Please continue reading Figure 2 and Figure 5 In some embodiments, the slider 62 is provided with a spherical groove, and the rotating body 63 is configured as a spherical body, which is rotatably installed in the spherical groove. The spherical body and the spherical groove are rotatably connected to each other to provide universal rotation capability, that is, the front frame body 10 is allowed to twist in any direction and at any angle in space relative to the rear frame body 30, so that the forest chassis can better adapt to various complex and changeable terrain environments.

[0039] Please continue reading Figure 1 and Figure 2 In addition, the forest chassis also includes a deflection drive mechanism 40 and a rotary hinge shaft 90, one end of the rotary hinge shaft 90 is rotatably connected to the intermediate connecting frame 20, and the rotary hinge shaft 90 can rotate and swing relative to the intermediate connecting frame 20 in a horizontal plane, and the other end of the rotary hinge shaft 90 is rotatably connected to the front frame body 10, and the rotary hinge shaft 90 can twist relative to the front frame body 10 in a vertical plane, and the deflection drive mechanism 40 is connected between the rotary hinge shaft 90 and the intermediate connecting frame 20, and the deflection drive mechanism 40 is used to drive the front frame body 10 to swing left or right relative to the rear frame body 20 in a horizontal plane.

[0040] When the forest vehicle travels on a bumpy forest road, under the condition that the rotating hinge shaft 90 provides rotational freedom, the intermediate connecting frame 20 can lead the rear frame body 20 to passively twist relative to the front frame body 10 following the ups and downs of the road, so as to achieve the purpose of adapting to the road surface.

[0041] Based on any of the above embodiments, the deflection drive mechanism 40 includes a first deflection drive member 41 and a second deflection drive member 42, wherein the drive seat of the first deflection drive member 41 is hinged to the left side of the intermediate connecting frame 20, the drive rod of the first deflection drive member 41 is hinged to the rotating hinge shaft 10, the drive seat of the second deflection drive member 42 is hinged to the right side of the intermediate connecting frame 20, and the drive rod of the second deflection drive member 42 is hinged to the rotating hinge shaft 10; wherein the first deflection drive member 41 and the second deflection drive member 42 are coplanarly arranged and arranged at an angle; wherein the first deflection drive member 41 and the second deflection drive member 42 are used to output telescopic linear power.

[0042] For example, the first deflection drive member 41 and the second deflection drive member 42 may be an electric push rod, a hydraulic cylinder, an oil cylinder, etc. Specifically, in this embodiment, the first deflection drive member 41 and the second deflection drive member 42 are hydraulic cylinders. When the first deflection drive member 41 drives the piston rod to extend and the second deflection drive member 42 drives the piston rod to retract, the front frame body 10 can be driven to swing toward the left relative to the rear frame body 30; on the contrary, when the first deflection drive member 41 drives the piston rod to retract and the second deflection drive member 42 drives the piston rod to extend, the front frame body 10 can be driven to swing toward the right relative to the rear frame body 30. In this way, the forest chassis and the forest vehicle have flexible steering and obstacle avoidance capabilities.

[0043] Of course, it is necessary to explain that the first deflection driving member 41 and the second deflection driving member 42 can also be replaced by springs, elastic columns, spring sheets, etc.

[0044] Please continue reading Figure 1 and Figure 3 Furthermore, in some other embodiments, the forest chassis also includes four amplitude adjustment mechanisms 80, two of which are respectively installed on the left and right sides of the front frame body 10, and the remaining two of which are respectively installed on the left and right sides of the rear frame body 30, and the wheels 70 are rotatably installed on the amplitude adjustment mechanisms 80 in a one-to-one manner.

[0045] By equipping the luffing adjustment mechanism 80, on the one hand, it helps to change the position of the center of gravity of the forest chassis and improve the stability of the forest chassis when operating on uneven roads; on the other hand, by adjusting the luffing adjustment mechanism 80, it also helps to achieve "step-by-step" crossing of obstacles and improve the obstacle crossing performance of the forest chassis.

[0046] Please continue reading Figure 1Specifically, the amplitude adjustment mechanism 80 includes a first amplitude frame 81, a second amplitude frame 82, a third amplitude frame 83, a first amplitude driving member 84, and a second amplitude driving member 85. The first amplitude frame 81 is connected to the driving shafts on the front frame body 10 and the rear frame body 30, one end of the second amplitude frame 82 is rotatably connected to the first amplitude frame 81, and the third amplitude frame 83 is rotatably set on the first amplitude frame 81. The driving seat of the first amplitude driving member 84 is hinged to the first amplitude frame 81, the driving rod of the first amplitude driving member 84 is hinged to the third amplitude frame 83, the driving seat of the second amplitude driving member 85 is hinged to the third amplitude frame 83, and the driving rod of the second amplitude driving member 85 is hinged to the second amplitude frame 82; wherein, the first amplitude driving member 84 and the second amplitude driving member 85 are used to output telescopic linear power.

[0047] For example, the first variable amplitude driving member 84 and the second variable amplitude driving member 85 can be an electric push rod, a hydraulic cylinder, an oil cylinder, etc. Specifically, in this embodiment, the first variable amplitude driving member 84 and the second variable amplitude driving member 85 adopt a hydraulic cylinder. When the first variable amplitude driving member 84 drives the piston rod to extend and the second variable amplitude driving member 85 drives the piston rod to retract, the third variable attachment frame gradually swings downward, and the second variable amplitude frame 82 also swings downward, and the wheel 70 is pressed downward toward the ground. In this way, under the reaction force of the ground, the front frame body 10, the middle connecting frame 20 and the rear frame body 30 are lifted and raised, and the center of gravity of the forest chassis and the ground clearance are adjusted, which enhances the stability and obstacle crossing ability of the forest chassis through uneven roads. On the contrary, the center of gravity and ground clearance of the forest chassis can be reduced, and the forest chassis and its forest vehicle are suitable for flat roads.

[0048] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0054] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Claims

1. A forest chassis, characterized in that: include: Front frame; Rear frame; as well as 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein the adjusting device is a wood-planer working table, and the adjusting device is a wood-planer working table. The adjusting device is a wood-planer working table, and the adjusting device is a wood-planer working table. The adjusting device is a wood-planer working table, and the adjusting device is a wood-planer working table. The adjusting device is a wood-planer working table, and the adjusting device is a wood-planer working table.

2. The forest chassis according to claim 1, characterized in that: The driving member is configured as a motor, the driving wheel is configured as a driving gear, the transmission wheel is configured as a transmission gear, the driving gear is meshed with the transmission gear, and the axle of the driving gear and the axle of the transmission gear are parallel to each other and are both in a horizontal plane.

3. The forest chassis according to claim 1, characterized in that: The sliding block is concavely provided with a spherical groove, the rotating body is configured as a spherical body, and the spherical body is rotatably installed in the spherical groove.

4. The forest chassis according to any one of claims 1 to 3, characterized in that: The forest chassis also includes a deflection drive mechanism and a rotating hinge shaft, one end of the rotating hinge shaft is rotatably connected to the intermediate connecting frame, and the rotating hinge shaft can rotate and swing relative to the intermediate connecting frame in a horizontal plane, and the other end of the rotating hinge shaft is rotatably connected to the front frame body, and the rotating hinge shaft can twist relative to the front frame body in a vertical plane, and the deflection drive mechanism is connected between the rotating hinge shaft and the intermediate connecting frame, and the deflection drive mechanism is used to drive the front frame body to swing left or right relative to the rear frame body in a horizontal plane.

5. The forest chassis according to claim 4, characterized in that: The deflection drive mechanism includes a first deflection drive member and a second deflection drive member, wherein the drive seat of the first deflection drive member is hinged to the left side of the intermediate connecting frame, the drive rod of the first deflection drive member is hinged to the left side of the rotating hinge shaft, the drive seat of the second deflection drive member is hinged to the right side of the intermediate connecting frame, and the drive rod of the second deflection drive member is hinged to the right side of the rotating hinge shaft; wherein the first deflection drive member and the second deflection drive member are coplanarly arranged and arranged at an angle; the first deflection drive member and the second deflection drive member are used to output telescopic linear power.

6. The forest chassis according to claim 5, characterized in that: The forest chassis also includes four wheels, two of which are rotatably mounted on the left and right sides of the front frame body, and the remaining two wheels are rotatably mounted on the left and right sides of the rear frame body.

7. The forest chassis according to claim 6, characterized in that: The forest chassis also includes four amplitude adjustment mechanisms, two of which are respectively installed on the left and right sides of the front frame body, and the remaining two are respectively installed on the left and right sides of the rear frame body, and the wheels are rotationally installed on the amplitude adjustment mechanisms in a one-to-one correspondence.

8. The forest chassis according to claim 7, characterized in that: The amplitude adjustment mechanism includes a first amplitude frame, a second amplitude frame, a third amplitude frame, a first amplitude driving member and a second amplitude driving member, the first amplitude frame is connected to the driving shafts on the front frame body and the rear frame body, one end of the second amplitude frame is rotatably connected to the first amplitude frame, the third amplitude frame is rotatably arranged on the first amplitude frame, the driving seat of the first amplitude driving member is hinged to the first amplitude frame, the driving rod of the first amplitude driving member is hinged to the third amplitude frame, the driving seat of the second amplitude driving member is hinged to the third amplitude frame, and the driving rod of the second amplitude driving member is hinged to the second amplitude frame; wherein, the first amplitude driving member and the second amplitude driving member are used to output telescopic linear power.

9. A forest vehicle, characterized in that: It comprises the forest chassis as described in any one of claims 1 to 8 above.

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