Detachable tracked vehicle with CVT and reverse

Abstract

The invention provides a detachable type caterpillar having infinitely variable transmission and reversing functions, belongs to the field of caterpillars, and solves the technical problem of providing the detachable type caterpillar having the infinitely variable transmission and reversing functions. A variable speed differential system is adopted, the size and weight of assemblies are reduced, steering is performed while cone-ring infinitely variable transmission is adopted, the rotating radius is controlled freely, a reversing system is added, thus the caterpillar can truly freely run, suspension assemblies can be detached freely, and the total weight of the caterpillar body is decomposed, so that grown people can handle freely. The detachable type caterpillar having the infinitely variable transmission and reversing functions is technically characterized by comprising a pedal, a supporting frame, a drive assembly, the suspension assemblies and an operating lever. The pedal is arranged on the supporting frame, the supporting frame is of a frame structure, the drive assembly is arranged in a cavity in the supporting frame, spline shafts used for insertion of the suspension assemblies are arranged on both sides of the supporting frame, and the two suspension assemblies are inserted into two sides of the supporting frame. The detachable type caterpillar having the infinitely variable transmission and reversing functions can be widely applied to the field of caterpillars.

Description

technical field [0001] The invention discloses a detachable crawler vehicle with stepless speed change and reverse gear, belonging to the technical field of crawler vehicles. Background technique [0002] As a walking tool with strong cross-country performance and adaptability to harsh environments and road conditions, personal crawler vehicles are increasingly used by people. The crawler vehicles in the prior art need two sets of systems on speed change and steering, i.e. speed change system and steering system, the transmission system usually uses a conveyor belt type continuously variable speed change, the traditional continuously variable transmission actuator requires a large power when the speed ratio changes, causing unnecessary delay in the shifting process, the steering system is also On the basis of belt transmission, the differential speed of the left and right crawlers is realized by cooperating with variable diameter pulleys. This method will cause the crawler v...

AI Technical Summary

Problems solved by technology

[0002] As a walking tool with strong cross-country performance and adaptability to harsh environments and road conditions, personal crawler vehicles are increasingly used by people. The crawler vehicles in the prior art need two sets of systems on speed change and steering, i.e. speed change system and steering system, the transmission system usually uses a conveyor belt type continuously variable speed change, the traditional continuously variable transmission actuator requires a large power when the speed ratio changes, causing unnecessary delay in the shifting process, the steering system is also On the basis of belt transmission, the differential speed of the left and right crawlers is realized by cooperating with variable diameter pulleys. This method will cause the crawler vehicle to have a large turning radius and is difficult to turn; using these two systems will occupy a large area in the vehicle body. Part of the space, the weight of the overall equipment is relatively large. At the same time, the tracked vehicles in the prior art have no reversing function, and it is impossible to realize the reverse driving of the two tracks to turn on the spot. , it is impossible to realize the random driving of the tracked vehicle

[0003] At present, the weight of the smallest personal crawler vehicle on the market reaches 90 kg, which means that in areas where driving is impossible, such as rivers or climbing steep slopes, more than two manpower are needed to carry the crawler vehicle. In areas where it is usually difficult for humans to walk, it is almost impossible for many people to lift the tracked vehicle to walk under the condition of walking difficulty, which reduces the scope of application of the tracked vehicle

[0004] In terms of operation, in the prior art, the position of the adjustment wheel of the variable-diameter pulley used in the steering system needs to be controlled by the angle of the pedal under the user's foot. When driving tangentially on a slope, due to gravity, the user’s body will inevitably tilt to the outside. At this time, in order to balance the force on the body’s feet, it will be transferred to the inside of the pedal, resulting in a change in the angle of the pedal, so that the tracked vehicle will automatically turn when climbing a steep slope. and difficult to control the direction

[0005] For the reversing system, in the prior art, a shift fork is used to adjust the spline sleeve. However, for crawler vehicles, the reversing system is exposed to the outside for a long time, and impurities will inevitably adhere to the surface of the shift fork. Wear and tear, affecting service life

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