CN213981751U

CN213981751U - Tractor power output device with pneumatic disc brake

Info

Publication number: CN213981751U
Application number: CN202023025252.XU
Authority: CN
Inventors: 王波; 丁宇; 何继凤
Original assignee: Xuzhou Kat Agricultural Equipment Co ltd
Current assignee: Xuzhou Kat Agricultural Equipment Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-08-17
Anticipated expiration: 2030-12-15

Abstract

The utility model provides a tractor power take-off with pneumatic disc brake, which comprises a gearbox shell, wherein a wet clutch hub body shaft is arranged in the gearbox shell, a transmission gear is arranged on the wet clutch hub body shaft, and the transmission gear is jointed with or separated from the wet clutch hub body shaft through a wet clutch friction pair; a power output flange is fixed at the output end of the hub body shaft of the wet clutch, a metal brake disc is installed on the power output flange, and a pneumatic clamp for limiting the metal brake disc to act is installed on the gearbox shell; the device is easy to overhaul and replace, has low requirement on machining precision, and can adjust the magnitude of the braking torque by changing the diameter of the metal brake disc; air is adopted as a braking medium, so that pollution is avoided.

Description

Tractor power output device with pneumatic disc brake

Technical Field

The utility model relates to a tractor field, concretely relates to take tractor power take off of pneumatic disc brake.

Background

The existing tractor mostly adopts a wet clutch as a power output device, and in order to solve the problem of belt drainage of the wet clutch, a hydraulic brake is usually required to be installed in a gearbox for braking. In order to arrange the hydraulic brake, a pressure oil duct needs to be added in the shaft of the wet clutch, so that the processing difficulty of the shaft is increased, and the risk of pressure oil leakage is also increased. Meanwhile, as the hydraulic brake is arranged in the gearbox, the hydraulic brake is not easy to find out in time when damaged, the fault judgment difficulty is high, and the disassembly and maintenance are difficult.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a take tractor power take off of pneumatic disc brake.

A tractor power output device with a pneumatic disc brake comprises a gearbox shell, wherein a wet clutch hub body shaft is arranged in the gearbox shell through a bearing, a transmission gear is arranged on the wet clutch hub body shaft, and the transmission gear is connected with or separated from the wet clutch hub body shaft through a wet clutch friction pair; the output end of the wet clutch hub body shaft is fixed with a power output flange through a spline, a metal brake disc is installed on the power output flange, and a pneumatic clamp used for limiting the metal brake disc to act is installed on the gearbox shell.

Preferably, a bent plate is fixed on the gearbox shell through a bolt, and the pneumatic clamp is fixedly connected with the bent plate through a bolt.

The utility model has the advantages that: install the metal brake disc outside the gearbox to brake it through pneumatic clamp, easily overhaul on the one hand, change, the machining precision requires lowly, and the size of braking moment of torsion can be adjusted to the diameter that changes the metal brake disc, and on the other hand adopts the air as the braking medium, can directly discharge to the atmosphere, pollution-free.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

the figures in the drawings represent:

1. the transmission comprises a gearbox shell 2, a wet clutch hub body shaft 3, a transmission gear 4, a wet clutch friction pair 5, a power output flange 6, a metal brake disc 7, a pneumatic clamp 8, a bolt 9 and a bent plate.

Detailed Description

The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

As shown in fig. 1, the tractor power output device with the pneumatic disc brake comprises a gearbox housing 1, a wet clutch hub body shaft 2 is installed in the gearbox housing 1 through a bearing, a transmission gear 3 is installed on the wet clutch hub body shaft 2, and the transmission gear 3 is connected with or separated from the wet clutch hub body shaft 2 through a wet clutch friction pair 4.

The output end of the wet clutch hub body shaft 2 is fixed with a power output flange 5 through a spline, a metal brake disc 6 is installed on the power output flange 5, and a pneumatic clamp 7 used for limiting the metal brake disc 6 to move is installed on the gearbox shell 1. The pneumatic clamp 7 is fixedly connected with a bent plate 9 through a bolt 8, and the bent plate 9 is fixedly connected with the gearbox shell 1 through the bolt 8.

The power is input to the transmission gear 3 by the PTO output shaft of the tractor, when the wet clutch friction pair 4 is combined, the transmission gear 3 is combined with the wet clutch hub body shaft 2, at the moment, no compressed air enters the pneumatic clamp 7, the metal brake disc 6 is in a release state, and the power is transmitted to the wet clutch hub body shaft 2 through the transmission gear 3 and is output by the power output flange 5. When the wet clutch friction pair 4 is separated, the transmission gear 3 idles, oil exists in the wet clutch friction pair 4 to form 'belt exhaust', the wet clutch hub body shaft 2 slightly rotates, at the moment, compressed air enters the pneumatic clamp 7 to enable the pneumatic clamp 7 to clamp and fix the metal brake disc 6, so that the wet clutch hub body shaft 2 is braked, the 'belt exhaust' phenomenon is eliminated, and the power output flange 5 is ensured to be completely static.

Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.

Claims

1. A tractor power take-off with pneumatic disc brake, includes the gearbox casing, install wet clutch hub body axle through the bearing in the gearbox casing, install drive gear on the wet clutch hub body axle, drive gear through wet clutch friction pair with the wet clutch hub body axle joint or separation, its characterized in that: the output end of the wet clutch hub body shaft is fixed with a power output flange through a spline, a metal brake disc is installed on the power output flange, and a pneumatic clamp used for limiting the metal brake disc to act is installed on the gearbox shell.

2. A tractor power take-off with a pneumatic disc brake as claimed in claim 1, characterised in that: the gearbox shell is fixedly provided with a bent plate through bolts, and the pneumatic clamp is fixedly connected with the bent plate through bolts.