Forestry machine cab mechanism and forestry machine

Abstract

The application belongs to the technical field of engineering machinery, and particularly relates to a cab mechanism for forestry machinery and the forestry machinery. The cab mechanism comprises a cab, a height increasing frame and a rotating table. The height increasing frame is rotationally connected with the rotating table, the cab is connected with the height increasing frame, and the rotating table is provided with a turnover driving member for driving the height increasing frame to rotate. The cab is arranged on the height increasing frame, so that the requirement for the height of the field of view during operation is met. Meanwhile, the height increasing frame is driven to turn over by the turnover driving member, the cab and the height increasing frame can be conveniently turned over by 90 degrees, the height of the whole vehicle is reduced without removing the cab, and the problem of overheight during transportation of the forestry machinery is avoided. One end of the height increasing frame is rotationally connected with the rotating table through a hinged shaft, and the height increasing frame is turned over by a telescopic rod which drives a movable shaft and a connecting rod to move. The direction and turnover process of the telescopic rod are limited by a limiting rocker and the hinged shaft. The turnover driving member in the application has a simple structure and high reliability.

Description

Technical Field

[0001] This application belongs to the field of engineering machinery technology, and in particular relates to a cab mechanism for forestry machinery and forestry machinery. Background Technology

[0002] During forestry machinery operations, to ensure operators have a sufficient field of vision, a cab extender needs to be installed on the turntable. One solution is to design the extender height according to the height restrictions for transporting forestry machinery. However, to prevent the machinery from exceeding height limits during transport, the design height of the extender is limited, resulting in insufficient operator visibility. Another solution is to design the extender height based on the actual operational needs on-site. To ensure sufficient operator visibility, the extender is usually designed to be higher, leading to the problem of the machinery exceeding height limits for transport. To enable transport, the cab and related pipelines often need to be dismantled and transported separately to the work site before reassembling the cab and related pipelines. This on-site assembly work is extensive, and the related pipelines are complex. For operators unfamiliar with the vehicle, the risk of abnormalities after assembly is high, reducing on-site operational efficiency. Summary of the Invention

[0003] To address the aforementioned problems in the existing technology, this application provides a cab mechanism for forestry machinery and forestry machinery, which can solve the problem of excessive height during the transportation of forestry machinery.

[0004] To achieve the above objectives, the technical solution provided in this application is as follows:

[0005] In a first aspect, this application provides a cab mechanism for forestry machinery, including a cab, a booster frame, and a turntable. The booster frame is rotatably connected to the turntable, and the cab is connected to the booster frame. A tilting drive component for driving the booster frame to rotate is provided on the turntable.

[0006] Optionally, the turntable is provided with a hinged mounting base, and the extension frame is rotatably connected to the hinged mounting base via a hinge shaft. The flipping drive component includes a telescopic rod, a limiting rocker arm, a connecting rod, and a movable shaft. The telescopic rod and the limiting rocker arm are both rotatably connected to the turntable, and the connecting rod is rotatably connected to the extension frame. The end of the connecting rod away from the extension frame, the end of the telescopic rod and the end of the limiting rocker arm away from the turntable are all rotatably connected to the movable shaft.

[0007] Optionally, the telescopic rod is rotatably connected to the turntable via a first shaft, and the limiting rocker arm is rotatably connected to the turntable via a second shaft, wherein the second shaft is located on the side of the first shaft opposite to the hinge mounting base.

[0008] Optionally, the riser frame is provided with a third shaft, and the connecting rod is rotatably connected to the riser frame through the third shaft. The third shaft and the hinge shaft are not on the same straight line.

[0009] Optionally, the riser is equipped with a ladder.

[0010] Optionally, a limiting buffer block is provided on the turntable, and the limiting buffer block is in contact with the riser.

[0011] Optionally, when the telescopic rod is extended to the first length, the booster frame is in a horizontal state; when the telescopic rod is shortened to the second length, the booster frame is in a flipped state; the driver's cab is installed on the top wall of the booster frame when the booster frame is in a horizontal state.

[0012] Optionally, the control lines of the cab are arranged in the cavity of the booster frame, and the booster frame is equipped with an inspection door.

[0013] Secondly, this application provides a forestry machine having the driver's cab mechanism for forestry machinery described in the first aspect.

[0014] Compared with the prior art, this application has at least the following beneficial effects:

[0015] This application satisfies the visibility height requirements during operation by mounting the cab on the extension frame. At the same time, the extension frame can be easily rotated by 90° by using a tilting drive, which reduces the overall vehicle height without removing the cab and avoids the problem of excessive height during the transportation of forestry machinery.

[0016] One end of the riser is rotatably connected to the turntable via a hinge shaft. The telescopic rod can drive the movable shaft and connecting rod to move, thereby realizing the flipping of the riser. The limit rocker and the hinge shaft limit the direction of the telescopic rod and the flipping process. The flipping drive component in this application has a simple structure and high reliability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a driver's cab mechanism for forestry machinery in an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the turntable structure in an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the riser structure in an embodiment of this application;

[0021] Figure 4 This is a schematic diagram of the structure of the forestry machinery cab mechanism in the embodiment of this application when it is not flipped over;

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Cab; 2. Extension frame; 21. Third axle; 211. Hinge seat; 22. Ladder; 23. Inspection door; 24. Hinge block; 3. Turntable; 31. Hinge mounting seat; 32. First axle; 33. Second axle; 34. Limit buffer block; 4. Tilting drive component; 41. Telescopic rod; 42. Limit rocker arm; 43. Connecting rod; 44. Movable axle. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use.

[0025] Example 1

[0026] like Figures 1-4 As shown, a driver's cab mechanism for forestry machinery includes a driver's cab 1, a booster frame 2, and a turntable 3. The booster frame 2 is rotatably connected to the turntable 3, and the driver's cab 1 is connected to the booster frame 2. The turntable 3 is provided with a tilting drive component 4 for driving the booster frame 2 to rotate.

[0027] This application satisfies the visibility height requirements during operation by setting the cab 1 on the extension frame 2. At the same time, the extension frame 2 can be rotated by the tilting drive 4, which can easily rotate the cab 1 and the extension frame 2 by 90°, reducing the overall vehicle height without removing the cab 1 and avoiding the problem of excessive height during the transportation of forestry machinery.

[0028] Example 2

[0029] The difference between this embodiment and embodiment 1 is that: a hinge mounting base 31 is fixed on the turntable 3, and a hinge block 24 is provided on the riser 2. The hinge block 24 is rotatably connected to the hinge mounting base 31 through a hinge shaft. The flipping drive component 4 includes a telescopic rod 41, a limiting rocker arm 42, a connecting rod 43, and a movable shaft 44. The telescopic rod 41 and the limiting rocker arm 42 are both rotatably connected to the turntable 3, and the connecting rod 43 is rotatably connected to the riser 2. The end of the connecting rod 43 away from the riser 2, and the ends of the telescopic rod 41 and the limiting rocker arm 42 away from the turntable 3 are all rotatably connected to the movable shaft 44.

[0030] In this embodiment, the telescopic rod 41 is rotatably connected to the turntable 3 via the first shaft 32, and the limiting rocker arm 42 is rotatably connected to the turntable 3 via the second shaft 33. The second shaft 33 is located on the side of the first shaft 32 away from the hinge mounting base 31. The riser frame 2 is provided with a third shaft 21, and a hinge base 211 is provided on the third shaft 21. The connecting rod 43 is rotatably connected to the riser frame 2 via the hinge base 211. The third shaft 21 and the hinge shaft are not on the same straight line.

[0031] When the telescopic rod 41 is extended to the first length, the extension frame 2 is in a horizontal state; when the telescopic rod 41 is shortened to the second length, the extension frame 2 is in a flipped state; the cab 1 is installed on the top wall of the extension frame 2 when the extension frame 2 is in a horizontal state, so as to meet the requirements of the operating field of vision height and avoid the problem of excessive transportation height.

[0032] One end of the riser 2 is rotatably connected to the turntable 3 via a hinge shaft. The telescopic rod 41 can drive the movable shaft 44 and the connecting rod 43 to move, thereby realizing the flipping of the riser 2. The limiting rocker arm 42 and the hinge shaft limit the direction of the telescopic rod 41 and the flipping process. The flipping drive component 4 has a simple structure and high reliability.

[0033] The booster frame 2 is equipped with a ladder 22, which allows operators to enter the cab 1 when needed.

[0034] The turntable 3 is equipped with a limiting buffer block 34. In this embodiment, the buffer block is composed of a pad and an elastic pad. When the telescopic rod 41 is at the second length, the limiting buffer block 34 is in contact with the riser 2, so that the flipping process can form a buffer to avoid excessive impact force from damaging the riser 2. The riser 2 is also shock-absorbing and supported during transportation.

[0035] The control lines of the cab 1 are arranged in the cavity of the booster frame 2. The booster frame 2 is equipped with a maintenance door 23, through which maintenance can be carried out inside the booster frame 2.

[0036] This application also provides a forestry machine having the aforementioned driver's cab mechanism, which can simultaneously meet the visibility height requirement and avoid excessive height issues without disassembly.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A cab mechanism for forestry machinery, characterized in that, It includes a driver's cab, a booster frame, and a turntable. The booster frame is rotatably connected to the turntable, and the driver's cab is connected to the booster frame. The turntable is equipped with a tilting drive for driving the booster frame to rotate. The turntable is provided with a hinged mounting base, and the extension frame is rotatably connected to the hinged mounting base via a hinge shaft. The flipping drive component includes a telescopic rod, a limiting rocker arm, a connecting rod, and a movable shaft. The telescopic rod and the limiting rocker arm are both rotatably connected to the turntable, and the connecting rod is rotatably connected to the extension frame. The end of the connecting rod away from the extension frame, the end of the telescopic rod and the end of the limiting rocker arm away from the turntable are all rotatably connected to the movable shaft.

2. The driver's cab mechanism for forestry machinery according to claim 1, characterized in that, The telescopic rod is rotatably connected to the turntable via a first shaft, and the limiting rocker arm is rotatably connected to the turntable via a second shaft, the second shaft being located on the side of the first shaft opposite to the hinge mounting base.

3. The driver's cab mechanism for forestry machinery according to claim 1, characterized in that, The riser frame is equipped with a third shaft, and the connecting rod is rotatably connected to the riser frame through the third shaft. The third shaft and the hinge shaft are not on the same straight line.

4. The driver's cab mechanism for forestry machinery according to claim 1, characterized in that, The riser is equipped with a ladder.

5. The driver's cab mechanism for forestry machinery according to claim 1, characterized in that, A limit buffer block is provided on the turntable, and the limit buffer block is in contact with the riser.

6. The driver's cab mechanism for forestry machinery according to claim 1, characterized in that, When the telescopic rod is extended to the first length, the booster frame is in a horizontal state; when the telescopic rod is shortened to the second length, the booster frame is in a flipped state; the driver's cab is installed on the top wall of the booster frame when the booster frame is in a horizontal state.

7. The driver's cab mechanism for forestry machinery according to claim 1, characterized in that, The control lines of the driver's cab are arranged in the cavity of the booster frame, which is equipped with an inspection door.

8. A forestry machinery, characterized in that, It is provided with a driver's cab mechanism for forestry machinery as described in any one of claims 1-7.

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