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Fixed shaft gear forward and reverse mechanism for special vehicles

A technology for special vehicles and gears, which is applied to belts/chains/gears, controlled components, mechanical equipment, etc., can solve the problems of narrow torque variation range, the engine cannot be reversed, and the rotational speed variation range is small, and achieves low manufacturing process requirements. , Improve maneuverability and compact structure

Inactive Publication Date: 2021-09-03
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 1) The speed variation range is small;
[0010] 2) The range of torque variation is narrow;
[0011] 3) The engine cannot be reversed
However, each gear in the mechanism bears greater internal force, which puts forward higher technological requirements for manufacturing

Method used

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  • Fixed shaft gear forward and reverse mechanism for special vehicles
  • Fixed shaft gear forward and reverse mechanism for special vehicles
  • Fixed shaft gear forward and reverse mechanism for special vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: Such as Figure 1-3 As shown, the present invention provides a special vehicle for a shaft gear positive and inverted mechanism, including an input shaft 1 and an output shaft 2, and a first gear 3 and a second gear 4 are connected, the first gear 3. The gear 3 is rotated from the input shaft 1, and the second gear 4 is fixed to the input shaft 1, and the first gear 3 is provided with a first mobile tooth sleeve 5 between the second gear 4, the output shaft 2. The upper hand is connected to the third gear 6 and the fourth gear 7, the third gear 6 is fixed to the output shaft 2, the fourth gear 7 rotates to the output shaft 2, the third gear 6 and the fourth gear The second mobile tooth sleeve 8 is provided between 7, and the first gear 3 is engaged between the third gear 6, and the second gear 4 is engaged between the fourth gear 9.

[0039] Between the input shaft 1 and the first gear 3, a bearing is provided between the output shaft 2 and the fourth gear 7, and ...

Embodiment 2

[0046] Embodiment 2: The tooth sleeve manipulating assembly is a mechanical manipulating assembly including a tie rod, a pull arm, a fork shaft, and a fork 12, which is fixedly connected to the mobile tooth sleeve. The axial movement of the mobile tooth sleeve is controlled. That is, the axial movement of the moving tooth sleeve is achieved by mechanical connection. The first moving tooth sleeve 5 and the second moving tooth package 8 are respectively coupled to the respective fork 12, respectively, and the tensile rod can be pulled, the arm, the fork shaft, and the fork 12, thereby causing the mobile tooth sleeve to the left or right Move, thereby achieving connection or separation between two gears.

Embodiment 3

[0047] Example 3: Figure 4 As shown, on the basis of the first example, the tooth sleeve manipulating assembly is a hydraulic operating assembly, the hydraulic manipulation assembly including a hydraulic cylinder 10, a piston 11, a fork 12, and a reset spring, the piston 11 side and hydraulic pressure. The cylinder 10 is connected, and the other side of the piston 11 is fixed to one end of the fork 12, the other end of the fork 12 is fixed to the moving tooth sleeve, the diater 12 distal piston 11 side, and a reset spring is connected. The fork 12 far piston 11 is further provided with a position sensor and / or a limiter 14.

[0048] That is, the connection or separation of the mobile tooth sleeve is achieved by hydraulic manner. The specific piston 11 is located within the housing 15, and the piston 11 is connected to the hydraulic cylinder 10, and the other side of the piston 11 is fixed to the front end 12, and the fork 12 is fixed to the mobile tooth sleeve, and the fork is f...

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Abstract

The invention discloses a fixed shaft gear forward and reverse mechanism for special vehicles. The mechanism comprises an input shaft and an output shaft, the input shaft is sleeved with a first gear and a second gear, the first gear is rotationally connected with the input shaft, the second gear is fixedly connected with the input shaft, a first movable gear sleeve is arranged between the first gear and the second gear, the output shaft is sleeved with a third gear and a fourth gear, the third gear is fixedly connected with the output shaft, the fourth gear is rotationally connected with the output shaft, a second movable gear sleeve is arranged between the third gear and the fourth gear, the first gear is meshed with the third gear, and the second gear is meshed with the fourth gear through a fifth gear. The forward gear driving function of the vehicle can be achieved, rapid reverse driving of the vehicle can also be achieved, the vehicle has high maneuverability, the forward and reverse mechanism and a front transmission box are integrally designed, the sharing of a gear mechanism is achieved, the size and weight of a system are reduced, the work is reliable, and the requirement for the rapid reverse gear driving function of the special vehicle is met.

Description

Technical field [0001] The present invention relates to the field of special vehicles, and more particularly to a non-shaft gear of special vehicles. Background technique [0002] The function and function of the drive system is to transmit the power of the engine as much as possible to the drive wheel, while the vehicle needs to meet multiple requirements: [0003] 1) Power transmission, change traction and driving speed; [0004] 2) The maximum resistance between the road surface and the minimum resistance is greater than a certain value; [0005] 3) Cold, and some vehicle requirements can be rushing at high speed; [0006] 4) Can cut off the power to start the engine or brake vehicle; [0007] 5) Can quickly consume the kinetic energy of the vehicle, and reduce the speed reduction and parking. [0008] However, insufficient performance in power devices is mainly reflected in the following points: [0009] 1) The range of rotational speeds is small; [0010] 2) Torque variation...

Claims

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Application Information

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IPC IPC(8): F16H57/023F16H63/32F16H63/40F16H61/04
CPCF16H57/023F16H63/32F16H63/40F16H61/0403
Inventor 韩立金刘辉项昌乐韩全福牛志亮许日明徐丽丽李宏才
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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