CN109114170B

CN109114170B - Bidirectional constant-speed output gear structure

Info

Publication number: CN109114170B
Application number: CN201811199500.7A
Authority: CN
Inventors: 李敏; 李玉洁; 柳金梅; 张红
Original assignee: Greenman Machinery Co
Current assignee: Greenman Machinery Co
Priority date: 2018-10-15
Filing date: 2018-10-15
Publication date: 2023-06-20
Anticipated expiration: 2038-10-15
Also published as: CN109114170A

Abstract

The invention discloses a two-way constant-speed output gear meshing structure, which comprises an input shaft and an output shaft, wherein an included angle alpha between the central line of the input shaft and the central line of the output shaft is 110-130 degrees, a first driving bevel gear and a second driving bevel gear are fixedly arranged at the tail end of the input shaft at intervals, a first driven bevel gear meshed with the first driving bevel gear is fixedly arranged on the output shaft, a second driven bevel gear meshed with the second driving bevel gear is sleeved on the output shaft in a hollow mode, the second driven bevel gear comprises a bevel gear part and a connecting part which are integrally formed, the first driving bevel gear, the second driving bevel gear and the second driven bevel gear turn the same, and the first driven bevel gear and the second driven bevel gear turn the opposite directions. The invention has more reasonable and novel structure and is more suitable for human operation.

Description

Bidirectional constant-speed output gear structure

Technical Field

The invention relates to a bidirectional constant-speed output gear structure.

Background

The included angle between the input shaft and the output shaft in the gear meshing structure of the bidirectional constant-speed output shaft in the prior art is 90 degrees and is in a vertical state, and the structure is mostly used for mechanical products such as a double-wheel anisotropic cutting machine, a brush cutter, a cleaning machine and the like, because the structure is required to be planar cutting during cutting, people are easily injured during bevel cutting, the inclined plane cutting is dangerous, an operator can only squat to level, then cutting operation is performed, the labor intensity is high, the operation is inconvenient, and time and labor are wasted.

Disclosure of Invention

The invention aims to provide a bidirectional constant-speed output gear structure, wherein an included angle alpha between an input shaft and an output shaft is 110-130 degrees, preferably 120 degrees, and the structure is more reasonable and novel and is more suitable for human operation.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the utility model provides a two-way constant speed output gear structure, it includes input shaft and output shaft, and contained angle alpha between this input shaft central line and this output shaft central line is 110 ~ 130 degrees, and the tail end interval of this input shaft has set firmly first initiative bevel gear and second initiative bevel gear, has set firmly on this output shaft with this first initiative bevel gear engaged first driven bevel gear, and this output shaft sky the cover has the second driven bevel gear with this second initiative bevel gear engagement, and this second driven bevel gear includes integrated into one piece's bevel gear portion and connecting portion, first initiative bevel gear the second initiative bevel gear with the second driven bevel gear turns to the same, and this first driven bevel gear turns to opposite with this second driven bevel gear.

Preferably, the angle α between the input shaft centerline and the output shaft centerline is 120 degrees.

Preferably, the first drive bevel gear, the second drive bevel gear and the input shaft are connected by keys or integrally formed.

Preferably, the first driven bevel gear and the output shaft are connected by a key or integrally formed.

The lower end of the output shaft is connected with the forward working part, and the connecting part of the second driven bevel gear is connected with the reverse working part.

Preferably, the bidirectional constant speed output gear structure further comprises a housing, a bearing is arranged between the top end of the output shaft and the housing, and a bearing is sleeved between the input shaft above the first drive bevel gear and the housing.

The invention has the beneficial effects that:

1. the bidirectional constant-speed output gear structure is mainly used as a working head component of mechanical products such as a cutting machine, a brush cutter, a cleaning machine and the like, is suitable for standing operation of operators, has low labor intensity and is convenient to operate; when the device is particularly used on a cutting machine, when a forest fire disaster occurs, the device is particularly outstanding in fire scene cleaning, time and labor are saved, and the injury to operators caused by standing operation relative to bending or squatting operation can be greatly reduced. The invention has more reasonable structure, less abrasion of gears, longer service life and time and labor saving.

2. The gear structure used as a transmission mode of bidirectional constant-speed output is used for transmission with an input angle of 110-130 degrees, the input range and the space are larger and more flexible, and the transmission modes can be diversified.

3. The novel structure can lead operators to be far away from the cut objects as the working head parts of mechanical products such as cutting machines, brush cutters, cleaning machines and the like. Such as an emergency rescue cutter, with which an operator can be kept away from the object to be cut. Thereby avoiding the risk of injury to dangerous objects around the cut object.

4. As a forest fire scene cleaning machine, the device can be operated by an operator in a standing mode, is labor-saving and efficient, and avoids personal injury.

Drawings

Fig. 1 is a schematic structural view of a bidirectional constant speed output gear structure according to the present invention.

Fig. 2 is a schematic view of a usage state structure of the present invention.

1. Input shaft, 11, first drive bevel gear, 12, second drive bevel gear, 2, output shaft, 21: first driven bevel gear, 3, second driven bevel gear, 31: bevel gear portion, 32: connection part, A: bearing, 4: a shell body B: bearing, C: bearing, 51: forward working part, 52: reverse working member.

Detailed Description

Referring to fig. 1 to 2, the bidirectional constant speed output gear structure of the present invention includes an input shaft 1 and an output shaft 2, an included angle α 110-130 degrees, preferably α is 120 degrees, between a center line 01 of the input shaft 1 and a center line 02 of the output shaft 2, a first drive bevel gear 11 and a second drive bevel gear 12 are fixed on a tail end of the input shaft 1 at intervals, a first driven bevel gear 21 meshed with the first drive bevel gear 11 is fixed on the output shaft 2, a second driven bevel gear 3 meshed with the second drive bevel gear 12 is hollow and sleeved on the output shaft 2 through a bearing a, the second driven bevel gear 3 includes integrally formed bevel gear portions 31 and connecting portions 32, the bevel gear portions 31 are meshed with tooth portions of the second drive bevel gear 12, the first drive bevel gear 11, the second drive bevel gear 12 and the second driven bevel gear 3 are identical in rotation direction, and the first driven bevel gear 21 and the second driven bevel gear 3 are opposite in rotation direction; the first drive bevel gear 11 and the second drive bevel gear 12 have the same number of teeth, and the first driven bevel gear 21 and the second driven bevel gear 3 have the same number of teeth.

Preferably, the first drive bevel gear 11, the second drive bevel gear 12 and the input shaft 1 are connected by keys.

The first drive bevel gear 11, the second drive bevel gear 12 and the input shaft 1 are integrally formed.

Preferably, the first driven bevel gear 21 and the output shaft 2 are connected by a key.

The first driven bevel gear 21 and the output shaft 2 are integrally formed.

The upper end of the input shaft is drivingly connected to the power unit, the lower end of the output shaft is connected to the forward working member 51, and the connecting portion 32 of the second driven bevel gear is connected to the reverse working member 52.

The motor drive bevel gear further comprises a shell 4, a bearing B is arranged between the top end of the output shaft 2 and the shell 4, and two bearings C are sleeved between the input shaft 1 above the first drive bevel gear 11 and the shell 4 at intervals.

According to the bidirectional constant-speed output gear structure, the included angle alpha between the center line of the input shaft and the center line of the output shaft is 120 degrees, so that the output flexibility is improved. The angle enables the design of the transmission structure to be more convenient or enables the operator of the product to operate more comfortably and safely. The cutting machine is mainly used in mechanical products such as a cutting machine, a brush cutter, a cleaning machine and the like, and is convenient to operate, safe and labor-saving when cutting.

The above embodiments are provided to illustrate the present invention and not to limit the present invention, so that the substitution of equivalent elements is still within the scope of the present invention. In view of the above, it will be apparent to those skilled in the art that the present invention can achieve the above-mentioned objects, and it is in accordance with the patent statutes that the present invention is filed accordingly.

Claims

1. A two-way constant speed output gear structure, its characterized in that: the cutting device is used for cutting and comprises an input shaft and an output shaft, wherein an included angle alpha between the central line of the input shaft and the central line of the output shaft is 110-130 degrees, a first driving bevel gear and a second driving bevel gear are fixedly arranged at the tail end of the input shaft at intervals, a first driven bevel gear meshed with the first driving bevel gear is fixedly arranged on the output shaft, a second driven bevel gear meshed with the second driving bevel gear is sleeved on the upper space of the output shaft, the second driven bevel gear comprises a bevel gear part and a connecting part which are integrally formed, the first driving bevel gear, the second driving bevel gear and the second driven bevel gear turn the same, the first driven bevel gear and the second driven bevel gear turn opposite, the lower end of the output shaft is connected with a forward working part, and the connecting part of the second driven bevel gear is connected with a reverse working part.

2. The bi-directional constant velocity output gear structure according to claim 1, wherein: the included angle alpha between the center line of the input shaft and the center line of the output shaft is 120 degrees.

3. A bi-directional constant velocity output gear structure according to claim 1 or 2, wherein: the first drive bevel gear, the second drive bevel gear and the input shaft are connected through keys or integrally formed.

4. A bi-directional constant velocity output gear structure according to claim 3 wherein: the first driven bevel gear and the output shaft are connected through keys or integrally formed.

5. The bi-directional constant velocity output gear structure according to claim 1, wherein: the driving bevel gear further comprises a shell, a bearing is arranged between the top end of the output shaft and the shell, and a bearing is sleeved between the input shaft above the first driving bevel gear and the shell.