Bevel gear

Abstract

The utility model relates to a helical gear, which comprises an input sleeve and an output sleeve, the output ring is coaxially connected with the input sleeve, and helical teeth are arranged on the outer ring of the output ring; the connecting part is connected with the input sleeve and the output ring; the positioning groove is formed in the upper surface of the connecting part; the input shaft is connected with the input sleeve, and helical teeth of the output shaft are meshed with helical teeth on the output ring, so that coaxial connection of the output shaft and the input shaft is realized; the positioning groove is formed in the surface of the connecting part, and a positioning protrusion matched with the positioning groove is arranged on the surface of the output shaft. In this way, when the output shaft is matched with the bevel gear, the positioning groove needs to be matched with the positioning protrusion, then the output shaft is positioned, matching of the characteristics of the input shaft and the characteristics of the output shaft is achieved, and positioning matching of the output shaft and the input shaft is achieved.

Description

Technical Field

[0001] The utility model relates to the field of gears, in particular to a helical gear. Background Art

[0002] Gears are used to transmit power between the input and output shafts. In certain scenarios, it is necessary to ensure that the input and output shafts are coaxially mounted, and the features on the input and output shafts need to be positioned and set.

[0003] Conventional helical gears can only achieve coaxial arrangement of the output and input shafts, but cannot locate the features on the input and output shafts. Therefore, positioning the input and output shafts requires visual feature judgment and robotic arm rotation to achieve self-rotation of the output or input shaft.

[0004] In summary, how to achieve the positioning and coordination of the output shaft and the input shaft has become an urgent problem that researchers in this field need to solve. Utility Model Content

[0005] The technical problem to be solved by the utility model is: how to realize the positioning and matching of the output shaft and the input shaft;

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] The utility model is a helical gear, comprising: an input sleeve; an output ring, which is coaxially connected to the input sleeve and has helical teeth on its outer ring; a connecting portion, which connects the input sleeve and the output ring; and a positioning groove, which is provided on the upper surface of the connecting portion.

[0008] In this solution, the input shaft is connected to the input sleeve, and the helical teeth of the output shaft mesh with the helical teeth on the output ring, thereby realizing a coaxial connection between the output shaft and the input shaft; a positioning groove is provided on the surface of the connecting portion, and a positioning protrusion matching the positioning groove is provided on the surface of the output shaft;

[0009] In this way, when the output shaft is matched with the helical gear, the positioning groove needs to be matched with the positioning protrusion, and then the output shaft is positioned, so that the features on the input shaft and the output shaft are matched, thereby achieving the positioning match of the output shaft and the input shaft.

[0010] To illustrate the specific structure of the connecting part, the connecting part adopted by the present invention includes: a horizontal support member, which connects the input sleeve and the output ring, and has the positioning groove on its surface; an oblique support member, which connects the input sleeve and the output ring;

[0011] In this solution, the oblique support members and the horizontal support members jointly connect the input sleeve and the output ring to ensure the connection strength between the input sleeve and the output ring.

[0012] In order to dissipate heat from and reduce the weight of the gear, the present utility model is such that the horizontal support member and the inclined support member are both provided with weight-reducing and heat-dissipating holes;

[0013] By providing the weight-reducing and heat-dissipating holes, heat dissipation and weight reduction of the gear can be achieved.

[0014] In order to illustrate the specific structure of the input sleeve, the present utility model is such that the inner hole of the input sleeve is provided with splines;

[0015] In this solution, splines are provided at the end of the input shaft, and the input sleeve is also provided with splines. The input shaft is inserted into the inner hole of the input sleeve, and the transmission of the torque of the input shaft is achieved through the cooperation of the splines.

[0016] In order to illustrate the specific structure of the positioning groove, the present utility model is such that the included angle between every two of the positioning grooves is 60°;

[0017] In this way, the positioning protrusion on the output shaft can be matched with any one of the positioning grooves, and there are 6 equally spaced positioning grooves.

[0018] In this solution, the positioning groove also functions as an oil reservoir. In order to achieve lubrication at the helical teeth, the present utility model is such that each of the positioning grooves is provided with an oil port extending towards the helical teeth;

[0019] In this way, the positioning grooves not engaged with the positioning protrusions can store lubricating oil. During the rotation of the helical gear, due to the centrifugal force, the lubricating oil will be centrifuged from the oil port to the helical teeth to achieve lubrication of the helical teeth.

[0020] The beneficial effects of the present utility model: The present utility model is a helical gear. The input shaft is connected to the input sleeve, and the helical teeth of the output shaft are engaged with the helical teeth on the output ring to achieve coaxial connection of the output shaft and the input shaft; the positioning grooves are provided on the surface of the connecting portion, and positioning protrusions matching the positioning grooves are provided on the surface of the output shaft; in this way, when the output shaft is matched with the helical gear, it is necessary to match the positioning grooves with the positioning protrusions, thereby positioning the output shaft, achieving the matching of the features on the input shaft and the output shaft, and realizing the positioning cooperation of the output shaft and the input shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0022] Figure 1 is the top view of the present utility model;

[0023] Figure 2 is Figure 1 the sectional view taken along B-B in

[0024] Figure 3 is Figure 1 the sectional view taken along C-C in

[0025] Figure 4 is the bottom view of the present utility model;

[0026] In the figure: 1 - input sleeve, 11 - spline, 2 - output ring, 3 - helical teeth, 4 - connecting part, 41 - horizontal support, 42 - inclined support, 5 - positioning groove, 6 - weight-reducing and heat-dissipating hole, 7 - oil port. Detailed implementation manners

[0027] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0028] As Figures 1-4 shown, the present utility model is a helical gear, including: an input sleeve 1; an output ring 2, which is coaxially connected to the input sleeve 1, and helical teeth 3 are provided on the outer ring thereof; a connecting part 4, which connects the input sleeve 1 and the output ring 2; a positioning groove 5, which is provided on the upper surface of the connecting part 4;

[0029] In this solution, the input shaft is connected to the input sleeve, and the helical teeth of the output shaft are engaged with the helical teeth on the output ring to realize the coaxial connection of the output shaft and the input shaft; the positioning groove is provided on the surface of the connecting part, and a positioning protrusion matching the positioning groove is provided on the surface of the output shaft;

[0030] In this way, when the output shaft is matched with the helical gear, it is necessary to match the positioning groove with the positioning protrusion, and then position the output shaft, so as to match the features on the input shaft and the output shaft, and realize the positioning cooperation of the output shaft and the input shaft.

[0031] As Figures 1-4 shown, in order to illustrate the specific structure of the connecting part, the present utility model adopts that the connecting part 4 includes: a horizontal support 41, which connects the input sleeve 1 and the output ring 2, and the positioning groove 5 is provided on its surface; an inclined support 42, which connects the input sleeve 1 and the output ring 2;

[0032] In this solution, the inclined support and the horizontal support jointly connect the input sleeve and the output ring to ensure the connection strength between the input sleeve and the output ring.

[0033] As Figures 1-4 shown, in order to dissipate heat and reduce the weight of the gear, the present utility model adopts that weight-reducing and heat-dissipating holes 6 are provided on both the horizontal support 41 and the inclined support 42;

[0034] By providing the weight-reducing and heat-dissipating holes, heat dissipation and weight reduction of the gear can be achieved.

[0035] As Figures 1-4As shown, to illustrate the specific structure of the input sleeve, the present utility model adopts that the inner hole of the input sleeve 1 is provided with a spline 11;

[0036] In this solution, the end of the input shaft is provided with a spline, and the input sleeve is also provided with a spline. The input shaft is inserted into the inner hole of the input sleeve, and the transmission of the torque of the input shaft is realized through the cooperation of the splines.

[0037] As Figures 1-4 shown, to illustrate the specific structure of the positioning groove, the present utility model adopts that the included angle between every two of the positioning grooves 5 is 60°;

[0038] In this way, the positioning protrusion on the output shaft can cooperate with any one of the positioning grooves, and there are 6 equally spaced positioning grooves.

[0039] As Figures 1-4 shown, in this solution, the positioning groove also functions as an oil storage. To achieve the lubrication of the helical teeth, the present utility model adopts that each positioning groove 5 is provided with an oil port 7 extending towards the helical teeth 3;

[0040] In this way, the positioning grooves not cooperating with the positioning protrusions can store lubricating oil. During the rotation of the helical gear, due to the centrifugal force, the lubricating oil will be centrifuged from the oil port to the helical teeth to achieve the lubrication of the helical teeth.

[0041] Taking the above ideal embodiments of the present utility model as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A helical gear, characterized in that, Comprising: Input sleeve; Output ring, coaxially connected to the input sleeve, with helical teeth provided on its outer ring; Connecting part, connecting the input sleeve and the output ring; Positioning groove, provided on the upper surface of the connecting part; Each of the positioning grooves is provided with an oil port extending towards the helical teeth.

2. A helical gear according to claim 1, characterized in that, The connecting part includes: Horizontal support member, connecting the input sleeve and the output ring, with the positioning groove provided on its surface; Oblique support member, connecting the input sleeve and the output ring.

3. A helical gear according to claim 2, characterized in that, Both the horizontal support member and the oblique support member are provided with weight-reducing and heat-dissipating holes.

4. A helical gear according to claim 1, characterized in that, The inner hole of the input sleeve is provided with splines.

5. A helical gear according to claim 1, characterized in that, Six positioning grooves are provided, and the angle between every two positioning grooves is 60°.

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