CN204741863U - Reduction gear that harvester was used - Google Patents

Abstract

A reduction gear box for a harvester, which mainly includes a box body, an input shaft installed in the box body, a clutch is installed on the input shaft and connected to a driving gear looped on the input shaft through the clutch, the driving gear The gear meshes with a driven gear fixedly mounted on the output shaft; a driving bevel gear is also fixedly mounted on the input shaft, and the driving bevel gear meshes with a driven bevel gear fixedly mounted on the pulley shaft; the The input shaft and the pulley shaft are respectively supported in the box through their respective bearings, and the input shaft and the pulley shaft are arranged perpendicular to each other; the clutch is a hydraulically controlled friction clutch, which includes an external friction clutch with a piston inside and meshing with each other. The clutch shell of the internal friction plate and the internal friction plate, the internal teeth of the internal friction plate are meshed with the integrated clutch seat on the driving gear; one end of the pulley shaft is connected with an oil pump, and the other end of the pulley shaft is equipped with a pulley, and Output via belt.

Description

A reduction gearbox for a harvester

technical field

The utility model relates to a reduction gear box for harvesters with deceleration (or speed up) and multi-head simultaneous output, which belongs to the technical field of power transmission.

Background technique

The existing gearbox structure mainly includes the box body, input shaft parts and output shaft parts, etc. Generally, the input and output are in parallel directions. Even if there is one input and multiple outputs, then there are multiple parallel outputs. Therefore, the existing gearbox structure changes There are not many, so there is no special structure for special needs, such as the special reduction gearbox for harvesters. The used power transmission of the current harvester has only the clutch deceleration gearbox that utilizes the clutch to carry out the clutch, a simple clutch or a clutch and a gear combination, and its structure is relatively complicated, inconvenient to use, and poor in reliability.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art, and to provide a reduction gear box for harvesters with simple structure, convenient use and installation, and good reliability.

The purpose of this utility model is accomplished through the following technical solutions, a reduction gear box for harvesters, which mainly includes a box body, an input shaft installed in the box body, a clutch is installed on the input shaft and passes through the clutch Connected with a driving gear looped on the input shaft, the driving gear meshes with a driven gear fixedly installed on the output shaft; an active bevel gear is also fixedly installed on the input shaft, and the active bevel gear is fixedly installed with the The driven bevel gear on the pulley shaft is meshed; the input shaft and the pulley shaft are respectively supported in the box through their respective bearings, and the input shaft and the pulley shaft are arranged perpendicularly to each other.

The clutch is a hydraulically controlled friction clutch, which includes a clutch housing with a piston, an outer friction plate and an inner friction plate that are meshed with each other. Engagement; the piston and the return spring are on the input shaft at the same time and are close together; one end of the pulley shaft is connected to an oil pump, and the oil pump is connected to the clutch control valve through the oil circuit and when the oil pump is working, the hydraulic oil It is fed into the clutch control valve; the other end of the pulley shaft is equipped with a pulley and is output through the belt.

The utility model is improved on the basis of the prior art according to the market demand. It installs a set of hydraulic clutch on the existing deceleration gear box. After the control valve on the hydraulic clutch acts, after clutching, it decides Whether the output shaft is rotating. And on the input shaft is equipped with a constant rotation driving bevel gear, on the pulley shaft is equipped with a driven bevel gear meshed with each other, through the pulley shaft and the pulley on the pulley shaft to output power at the other end; to achieve double output and simultaneous right-angle The output uses the effective combination of hydraulic clutch, cylindrical gear and bevel gear to achieve the required working conditions and improve economic benefits.

The utility model has completed the power input (prime mover) by a diesel engine, so that one input drives two outputs; that is, the belt pulley output and the output through the clutch. The output of the pulley is constant rotation, and the output through the clutch is controlled by the control valve; when power output is required, turn the handle of the control valve to make the clutch combine and the output shaft rotates.

The utility model effectively solves the requirement of one machine with two outputs, and at the same time utilizes the meshing of clutches and gears to achieve controllable parallel output; uses the meshing of bevel gears to perform 90-degree right-angle output; has the advantages of simple structure, convenient use and installation, and high reliability. Good features.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Fig. 2 is a schematic diagram of the cross-sectional structure along line A-A of Fig. 1 .

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings: shown in Figures 1 and 2, a reduction gear box for a harvester described in the utility model mainly includes a box body 10, and the gear box installed in the box body Input shaft 1, a clutch is installed on the input shaft 1 and is connected with a driving gear 6 looped on the input shaft 1 through the clutch, and the driving gear 6 is meshed with a driven gear 13 fixedly installed on the output shaft; A driving bevel gear 9 is also fixedly installed on the input shaft 1 described above, and the driving bevel gear 9 meshes with the driven bevel gear 22 fixedly installed on the pulley shaft 23; the input shaft 1 and the pulley shaft 23 pass through their respective The bearings are supported in the casing, and the input shaft 1 and the pulley shaft 23 are arranged perpendicular to each other, that is, the pulley shaft 23 has two bearings supported on the casing 10, and is output at 90 degrees horizontally with the input shaft 1.

As shown in the figure, the clutch is a hydraulically controlled friction clutch, which includes a clutch housing 4 in which a piston 5, an interengaging outer friction plate 16 and an inner friction plate 15 are housed, and the inner teeth of the inner friction plate 15 and the The clutch seat connected as one on the driving gear 6 is engaged; the piston 5 and the return spring 17 are simultaneously on the input shaft 1 and are closely attached together; one end of the pulley shaft 23 is connected with an oil pump 20, and the oil pump 20 The hydraulic oil is sent to the clutch control valve 7 when the oil pump is working; the other end of the pulley shaft 23 is equipped with a pulley and is output through a belt.

When the handle of the control valve is turned, the working oil of the control valve enters the working piston through the working oil circuit. The piston pushes the piston to move under the pressure of the working oil, and presses the inner and outer friction plates, so that the clutch housing fixed on the input shaft passes through the outer friction plates, inner friction plates, and the clutch seat on the driving gear to drive the driving gear to rotate, and at the same time make the driven gear rotate. The driven gear and the output shaft rotate together. The power is output through the output shaft.

Because the driving bevel gear is fixedly installed on the input shaft at the same time, when the input shaft rotates, the driving bevel gear drives the driven bevel gear fixed on the pulley shaft to rotate together. A pulley is installed on the pulley shaft, and the pulley outputs power through the belt.

Embodiment: As shown in FIGS. 1 and 2 , the input shaft 1 is supported on the casing 10 through the bearing 2 and the bearing 8 . A clutch housing 4 is fixedly mounted on the input shaft 1 . Piston 5 is housed in the clutch casing 4, and the outer friction plate 16 that is engaged with each other is housed in the clutch casing 4 simultaneously, and inner friction plate 15, the internal tooth of inner friction plate 15 is meshed with the clutch seat on the driving gear 6. The piston 5 and the return spring 17 are pressed against the input shaft 1 simultaneously. The driving gear 6 is installed on the relatively rotatable input shaft 1 and meshes with the driven gear 13 on the output shaft 12 . A driven gear 13 is fixedly installed on the output shaft 12 , and the output shaft 12 has a bearing 14 and a bearing 11 supported on the casing 10 .

The driving bevel gear 9 is fixedly installed on the input shaft 1, and meshes with the driven bevel gear 22 fixedly installed on the pulley shaft 23, and the pulley shaft 23 is supported on the casing 10 by the bearing 21 and the bearing 24.

When the input shaft 1 rotated, the driving bevel gear 9 fixed on the input shaft 1 drove the driven bevel gear 22 fixed on the pulley shaft 23 to rotate, so that the pulley shaft 23 was rotated, and the power was transmitted from the pulley shaft 23. The other end of the pulley shaft 23 is connected with the oil pump 20, and the oil pump works after the oil pump 20 rotates, and the hydraulic oil enters the control valve 7.

When the handle on the control valve 7 is turned to the combined position, the working oil in the control valve 7 enters the working chamber of the clutch housing 4 through the working oil circuit 18, pushes the piston 5 to move, and presses the internal and external friction plates. The power of the diesel engine passes through the clutch housing 4 from the input shaft 1, the outer friction plate 16, the inner friction plate 15, the clutch seat on the driving gear 6, and through the driving gear 6, the driven gear 13, and the output shaft 12 outputs the power.

When the operating handle on the operating valve 7 is turned to the disengaged position, the working oil is returned from the working oil circuit 18, and the piston 5 returns the piston to its original position under the action of the return spring 17.

The utility model realizes one input and two output functions according to different requirements.

Claims (2)

1. the reduction gear box of a grain header, it mainly comprises a casing (10), be arranged on the power shaft (1) in casing, this power shaft (1) is provided with a clutch and by this clutch be connected the driving gear (6) of a kink on power shaft (1), this driving gear (6) and is fixedly mounted on driven gear on output shaft (13) and is meshed; It is characterized in that described power shaft (1) is also installed with a driving bevel gear (9), this driving bevel gear (9) engages with the driven bevel pinion (22) be fixedly mounted on Pulley shaft (23); Described power shaft (1) and Pulley shaft (23) are bearing in casing (10) respectively by respective bearing, and power shaft (1) and Pulley shaft (23) are in being mutually arranged vertically.

2. according to the reduction gear box of grain header according to claim 1, it is characterized in that described clutch is the slip clutch of hydraulic control, it comprises one built with the clutch outer member (4) of piston (5), intermeshing outside friction disc (16) and inner attrition piece (15), and the internal tooth of inner attrition piece (15) is meshed with driving gear (6) first line of a couplet all-in-one-piece clutch base; Piston (5) is gone up and is close together at power shaft (1) with return spring (17) simultaneously; One end of described Pulley shaft (23) is connected with an oil pump (20), and described oil pump (20) to be connected with clutch application valve (7) by oil circuit and when operation of oil pump, hydraulic oil to be sent into clutch application valve (7); The other end of Pulley shaft (23) is equipped with belt pulley, and is exported by belt.