Gear shifting device for cab rotating platform

Abstract

The invention discloses a cab rotating platform gear shifting device which is composed of a gear shifting mechanism operating rod, a gear shifting mechanism connecting piece and a gearbox gear shifting fork, and the gear shifting mechanism connecting piece penetrates through an inner ring of a slewing bearing to be connected with the gear shifting mechanism operating rod and the gearbox gear shifting fork. The connecting piece of the gear shifting mechanism is a flexible shaft or a hard shaft. The gear shifting mechanism is simple in structure, and gear shifting operation of the cab rotating platform can be achieved when a power transmission system is separated from a cab.

Description

Technical Field

[0001] The invention relates to a gear shifting device for a cab rotary platform, belonging to the technical field of engineering machinery and agricultural machinery. Background Art

[0002] Engineering machines and agricultural machines of various purposes meet various operation requirements, realize functions such as collection, transportation, and farming, and achieve the purpose of multi-purpose. As a multi-purpose agricultural machine, it needs to undertake multiple operation modes. In order to improve work efficiency and safety during use, agricultural machinery needs to be equipped with a cab rotating platform that can operate gear shifting, so that the driver can operate various electromechanical and hydraulic working devices in the cab that can rotate 360°. At present, there is no machine in the industry that can achieve full rotation with the power transmission system separated from the cab. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a gear shifting device integrated in a cab rotating platform, so as to realize the gear shifting operation of the cab rotating platform when a power transmission system is separated from the cab.

[0004] The technical solution of the present invention is as follows: a cab rotating platform shifting device, including a driving rotating platform assembly, a cab platform, a seat, a hydraulic steering system, an accelerator, a brake and a clutch pedal, an electromechanical and hydraulic pilot operating box and a handle of a working device, and a shifting mechanism operating assembly.

[0005] The shift mechanism is fixed on the slewing bearing base component and extends into the cab through the hollow central swivel joint. The seat, steering gear, and electromechanical hydraulic operation system are fixed on the driving swivel platform assembly. The driving swivel platform assembly is provided with a slewing bearing base and a swivel platform. A slewing bearing is provided between the slewing bearing base and the swivel platform. The swivel platform is installed on the slewing bearing base through the slewing bearing. A hollow central swivel joint is also provided between the swivel bearing base and the swivel platform. The shift mechanism is fixed on the slewing bearing base and the frame. The other end extends upward from the hollow central swivel joint into the interior of the cab. The shift mechanism is provided with a gear lever and a shift connector.

[0006] The rotating platform and the shift mechanism are relatively independent and do not interfere with each other. The shift connection part is a connection part between the joystick of the shift mechanism and the gearbox shift fork. The cab is fixed on the rotating platform and can rotate 360 ​​degrees with the rotating platform. The shift mechanism is fixed on the slewing bearing base and does not rotate with the rotating platform.

[0007] The shift mechanism is installed on the slewing bearing base and fixed to the frame beam. The upper end operating lever of the shift mechanism is fixed on the upper end of the connecting piece extending out of the hollow of the rotary joint. It mainly includes a shift operating lever, a connecting piece, and a gearbox fork.

[0008] The upper end of the shift mechanism is the shift operating mechanism, and the shift connecting piece passes through the hollow of the central rotating joint to the gearbox under the frame, and the lower end of the connecting piece is connected to the gear shift fork of the gearbox. The forward, neutral and reverse gears are realized by operating the corresponding gear position of the joystick. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0010] Explanation of the reference numerals: 1. Cab rotating platform, 2. Slewing bearing, 3. Slewing bearing base, 4. Central rotating joint, 5. Central rotating joint anti-rotation device, 6. Shift mechanism lever, 7. Shift mechanism connecting part, 8. Gearbox, 9. Gearbox shift fork. DETAILED DESCRIPTION

[0011] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementations.

[0012] like Figure 1 As shown, the shifting device of the cab rotating platform is composed of a shifting mechanism operating lever 6, a shifting mechanism connecting member 7 and a gearbox shift fork 9. The shifting mechanism connecting member 7 passes through the inner ring of the slewing bearing to connect the shifting mechanism operating lever 6 and the gearbox shift fork 9. The shifting lever 6 shifts the gears by pulling the gearbox shift mechanism connecting member 7 to position the shift fork 9 to different gears, thereby realizing the gear switching during driving.

[0013] The cab platform 1 is connected to the rotating ring gear of the slewing bearing 2 by bolts, the fixed ring gear of the slewing bearing 2 is fixed to the slewing bearing base 3 by bolts, and the slewing bearing base 3 is fixed to the frame beam; the rotor of the central swivel joint 4 is fixed to the cab rotating platform 1 by screws, and the swivel joint stopper 5 fixes the stator of the central swivel joint 4 to the bottom plate of the slewing bearing base 3.

[0014] One end of the shift mechanism connecting member 7 passes through the hollow of the central rotary joint 4 and extends to the cab to be fixed on the shift mechanism operating rod 6, and the other end of the shift mechanism connecting member 7 is fixed on the shift fork 9 on the gearbox 8 on the vehicle frame.

[0015] Working state of the present invention.

[0016] Change of driving direction.

[0017] When driving forward, the slewing bearing 2 drives the cab on the driving rotating platform 1 to rotate forward, and the shift mechanism operates the various gears during driving, namely forward, neutral and reverse gear.

[0018] When driving in reverse, the slewing bearing 2 drives the cab on the driving rotating platform 1 to rotate toward the rear, and the shift mechanism operates the various gears during driving, namely forward, neutral and reverse gear.

[0019] When the cab rotates to any direction, the slewing bearing 2 drives the cab on the driving rotating platform 1 to rotate to a certain position, and the shift mechanism operates the various gears during driving, such as forward gear, neutral gear and reverse gear.

[0020] The present invention has a simple structure and can realize the gear shifting operation of the cab rotating platform when the power transmission system is separated from the cab.

Claims

1. A cab rotating platform shift device, consisting of a shift mechanism operating lever, a shift mechanism connecting member and a gearbox shift fork, characterized in that: The gear shift mechanism connecting piece passes through the inner ring of the slewing bearing to connect the gear shift mechanism operating rod and the gearbox shift fork.

2. A platform shifting device as claimed in claim 1, characterized in that: The gear shift mechanism connecting piece is a flexible shaft.

3. A platform shifting device as claimed in claim 1, characterized in that: The gear shift mechanism connecting piece is a hard shaft.

4. A platform shifting device as claimed in claim 1, characterized in that: The shift mechanism is fixed to the slewing support base and to the vehicle frame.

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