CN217177289U

CN217177289U - T-shaped gear box with cambered surface embedding device

Info

Publication number: CN217177289U
Application number: CN202220826543.9U
Authority: CN
Inventors: 叶正彪
Original assignee: Wenling Guosheng Gearbox Co ltd
Current assignee: Wenling Guosheng Gearbox Co ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-08-12
Anticipated expiration: 2032-04-11

Abstract

The utility model belongs to the technical field of agricultural machinery accessories, concretely relates to T type gear box with cambered surface gomphosis ware, including initiative bevel gear, driven bevel gear, the main tank body, driven bevel gear and driven shaft are fixed as an organic whole, and the driven shaft both ends are installed on the main tank body through the bearing, initiative bevel gear passes through the bearing and installs on the main tank body, and initiative bevel gear front end and driven bevel gear mesh, and the rear end is provided with cambered surface gomphosis cover, and cambered surface gomphosis cover includes the gomphosis auxiliary cover that is fixed as an organic whole with initiative bevel gear and gomphosis main cover of gomphosis above the gomphosis auxiliary cover; the main embedded sleeve is provided with a spline hole and is in spline connection with the driving shaft, and the compression spring is sleeved on the driving shaft and tightly pressed at the rear end of the main embedded sleeve; the embedding end surfaces of the embedding main sleeve and the embedding auxiliary sleeve are provided with a spiral ascending arc inclined surface and a step surface for transmitting torque. The utility model provides a take T type gear box of cambered surface gomphosis ware sets up separable cambered surface gomphosis cover structure to reduce transmission loss, increase of service life.

Description

T-shaped gear box with cambered surface embedding device

Technical Field

The utility model belongs to the technical field of the agricultural machinery accessory, concretely relates to take T type gear box of cambered surface gomphosis ware.

Background

At present, the T-shaped gear box technology can be widely applied to the production field of engineering machinery and agricultural machinery. In particular to an agricultural product which is drawn by a tractor and has a power output shaft of the tractor. Such as straw returning machines, rotary cultivators, square and round bale banders, etc., which are characterized by high-speed rotation of working parts and large inertia torque.

The traditional T-shaped gearbox is composed of a pair of bevel gears, is very common and mainly used for transmitting power and reversing power, and a driving shaft of the T-shaped gearbox is fixed with a main gear and a driven shaft of the T-shaped gearbox is fixed with a driven gear. The main problems with this type of T-gear box are: when the rotary tiller works, the driving shaft drives the driven shaft to rotate through gear transmission, the driven shaft outputs torque to drive the cutter shaft of the rotary tiller to rotate at a high speed, when a main tractor stops, the power of the driving shaft is cut off instantly, the driving shaft continues to rotate under the influence of inertia of a machine tool rotating at a high speed to generate torque, and huge inertia moment is reversed to the driving shaft and the driven shaft of the T-shaped gear box, so that the transmission shaft connected with the gearbox and the tractor is damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a take T type gear box of cambered surface gomphosis ware sets up separable cambered surface gomphosis cover structure to reduce transmission loss, increase of service life.

The purpose of the utility model is realized like this: a T-shaped gear box with an arc surface embedding device comprises a driving bevel gear, a driven bevel gear and a main box body, wherein the driven bevel gear and a driven shaft are fixed into a whole; the main embedded sleeve is provided with a spline hole and is in spline connection with the driving shaft, and the compression spring is sleeved on the driving shaft and tightly pressed at the rear end of the main embedded sleeve; the embedding end surfaces of the embedding main sleeve and the embedding auxiliary sleeve are provided with a spiral ascending arc inclined surface and a step surface for transmitting torque.

Furthermore, the number of the step surfaces is 1-8, and the arc inclined surfaces between the step surfaces are rotationally and symmetrically distributed.

Furthermore, the driving bevel gear is rotatably connected to the lower end of the driving shaft, the upper end of the driving shaft is mounted on the clutch shell through a bearing, and the clutch shell covers the top of the main box body.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

the embedded main sleeve can slide on the driving shaft and is pressed on the embedded auxiliary sleeve by a pressure spring so as to realize forward power transmission; when the motor is driven reversely, the arc inclined plane pushes the embedded main sleeve to slide backwards and automatically separate.

When the cutter shaft of the main machine works, the driving shaft inputs power, the driving bevel gear is driven to rotate through the cambered surface embedded sleeve, meanwhile, the driven shaft also rotates together, and the output power drives the cutter shaft of the main machine to rotate at a high speed. When the power of the driving shaft is cut off and stopped, the driven shaft rotates under the action of the inertia force of the cutter shaft of the main machine, the driven bevel gear continues to drive the main bevel gear to rotate, the arc inclined plane on the embedding main sleeve at the rear end of the main bevel gear pushes the arc inclined plane on the embedding auxiliary sleeve to slide backwards, the arc embedding sleeve is separated, the power is cut off, the driving shaft cannot rotate, and the reverse opening and closing effect is achieved. At the moment, the T-shaped gearbox is in a no-load idle running state, the whole T-shaped gearbox and the link transmission shaft are effectively protected, and the defects of the existing gearbox are overcome.

Drawings

FIG. 1 is an external view of a T-shaped gearbox according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a T-shaped gearbox in an embodiment of the present invention;

FIG. 3 is a drawing showing the driving shaft and the driven shaft in accordance with the embodiment of the present invention;

FIG. 4 is a fitting and fitting view of the upper arc surface of the driving shaft according to the embodiment of the present invention;

FIG. 5 is an exploded view of the embodiment of the present invention showing the structure of the cambered surface engaging sleeve and the driving shaft;

FIG. 6 is a view showing a structure of the fitting main sleeve according to the embodiment of the present invention;

FIG. 7 is a view showing the parts of the drive bevel gear according to the embodiment of the present invention;

fig. 8 is a structural diagram of the fitting sleeve of the drive bevel gear and the cambered surface in the embodiment of the present invention.

Reference numerals: 1a, a main box body; 1b, a clutch housing; 2. a drive shaft; 2a, a spline; 3. a driven shaft; 4. embedding the main sleeve; 4a, a step surface; 4b, arc inclined plane; 4c, spline holes; 5. a bearing; 6. a bearing; 7. a drive bevel gear; 71. embedding the auxiliary sleeve; 7a, a step surface; 7b, arc inclined plane; 8. a driven bevel gear.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

A T-shaped gear box with an arc surface embedding device combines the figures 1 and 2, and comprises a driving shaft 2 and a driven shaft 3, wherein the driven shaft 3 is fixedly provided with a driven bevel gear 8, and two ends of the driven shaft 3 are arranged on a main box body 1a through bearings; the lower end of the driving shaft 2 is rotatably connected with a driving bevel gear 7, and the driving bevel gear 7 is fixed at an opening at the top of the main box body 1a through a bearing; the front end of the driving bevel gear 7 is meshed with the driven bevel gear 8, and the rear end is provided with an arc surface embedded sleeve.

Referring to fig. 2-8, the cambered surface engaging includes a fixed engaging main sleeve 4 and an engaging auxiliary sleeve 71, the engaging auxiliary sleeve 71 is integrally disposed at the rear end of the driving bevel gear 7, a spline hole 4c is disposed at the center of the engaging main sleeve 4, and is sleeved on the driving shaft 2, and is spline-connected with the driving shaft 2 and axially slidable; the upper end of the driving shaft 2 is installed on a clutch housing 1b through a bearing, and the clutch housing 1b covers the top opening of the main box body 1 a. A pressure spring is sleeved on the driving shaft 2 and tightly propped against the end face of the embedded main sleeve 4, so that the embedded main sleeve 4 and the embedded auxiliary sleeve 71 are pressed tightly; the other end of the pressure spring is propped against the inner ring of the bearing of the driving shaft 2.

With reference to fig. 5 to 7, the fitting surface of the fitting main sleeve 4 is provided with a circular arc inclined surface that rises spirally and a step surface that transmits torque; the fitting surface of the sub-fitting 71 is similarly provided with a spirally rising circular-arc inclined surface and a stepped surface for transmitting torque. The arc inclined plane on the embedding main sleeve 4 is attached to the arc inclined plane of the embedding auxiliary sleeve 71, when the power-driven embedded type power transmission device works, the driving shaft 2 inputs power, the step surface on the embedding main sleeve 4 is close to the step surface on the embedding auxiliary sleeve 71, and finally the embedding auxiliary sleeve 71 is driven to rotate together. After the power of the driving shaft 2 is cut off and stopped, specifically referring to fig. 8, the driven shaft 3 rotates under the action of the inertia force of the main cutter shaft, the driven bevel gear 8 continues to drive the driving bevel gear 7 to rotate, the circular arc inclined plane 7b on the rear end embedding auxiliary sleeve 71 of the driving bevel gear 7 pushes the circular arc inclined plane 4b on the embedding main sleeve 4 to slide backwards, the cambered embedding sleeve is separated, the power is cut off, the driving shaft 2 cannot rotate, and the reverse opening and closing effect is achieved.

The number of the arc inclined planes on the embedding main sleeve 4 and the embedding auxiliary sleeve 71 is 1-8 respectively, the arc inclined planes are rotationally and symmetrically distributed, and the step surfaces are distributed between the two arc inclined planes.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a take T type gearbox of cambered surface gomphosis ware, includes initiative bevel gear (7), driven bevel gear (8), main tank body (1a), and driven bevel gear (8) are fixed as an organic whole with driven shaft (3), and driven shaft (3) both ends are passed through the bearing and are installed on main tank body (1a), its characterized in that: the bevel gear mechanism is characterized in that the driving bevel gear (7) is mounted on the main box body (1a) through a bearing, the front end of the driving bevel gear (7) is meshed with the driven bevel gear (8), the rear end of the driving bevel gear is provided with an arc surface embedded sleeve, and the arc surface embedded sleeve comprises an embedded auxiliary sleeve (71) fixed with the driving bevel gear (7) into a whole and an embedded main sleeve (4) embedded above the embedded auxiliary sleeve (71); the main embedding sleeve (4) is provided with a spline hole (4c) and is in spline connection with the driving shaft (2), and the pressure spring is sleeved on the driving shaft (2) and is tightly pressed at the rear end of the main embedding sleeve (4); the fitting end surfaces of the main fitting sleeve (4) and the auxiliary fitting sleeve (71) are provided with arc inclined surfaces (4b, 7b) which rise spirally and step surfaces (4a, 7a) for transmitting torque.

2. The T-shaped gearbox with cambered surface embedding device as claimed in claim 1, characterized in that: the number of the step surfaces is 1-8, and the arc inclined surfaces between the step surfaces are rotationally and symmetrically distributed.

3. The T-shaped gearbox with cambered surface embedding device as claimed in claim 1, characterized in that: the driving bevel gear (7) is rotatably connected to the lower end of the driving shaft (2), the upper end of the driving shaft (2) is mounted on the clutch housing (1b) through a bearing, and the clutch housing (1b) covers the top of the main box body (1 a).