CN203051685U - Variable gear - Google Patents
Variable gear Download PDFInfo
- Publication number
- CN203051685U CN203051685U CN 201220754470 CN201220754470U CN203051685U CN 203051685 U CN203051685 U CN 203051685U CN 201220754470 CN201220754470 CN 201220754470 CN 201220754470 U CN201220754470 U CN 201220754470U CN 203051685 U CN203051685 U CN 203051685U
- Authority
- CN
- China
- Prior art keywords
- gear
- shaft hole
- axis hole
- circle
- variable gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model belongs to mechanical transmission parts, and relates to a variable gear. The variable gear comprises a gear main body, a shaft hole formed in the center of the gear main, and a shaft hole extension segment. The shaft hole extension segment is fixedly connected with the gear main body and is in a tubular shape. The axial projection of an inner circle of the shaft hole extension segment and the axial projection of the inner circle of the shaft hole are concentric circles with the same diameters. According to the variable gear, internal splines are arranged on the inner circle of the shaft hole, and external splines are arranged on the outer circle of the shaft hole extension segment. Variable gear sets with different rotational speed ratios can be matched according to work demands, and therefore installation is simpler and more convenient, and slipping can be prevented.
Description
Technical field
The utility model belongs to mechanical transmission part, relates to a kind of speed change gear.
Background technique
Gear transmission is most widely used a kind of type of belt drive in the mechanical transmission, and it is mainly used to transmit the rotation motion of two between centers, can also realize the conversion between rotation motion and the straight line motion.Gear transmission is compared with other forms of mechanical transmission, and the advantage that has is, can transmit motion and power between any diaxon in space, also can reduce rotating speed and or improve rotating speed according to work requirements.General speed change gear partner is installed in axle respectively with big small gear to go up or small gear is fixed on the gearwheel with screw, and assembling is complicated, and the loosening of screw also can be made troubles to work.
The model utility content
The purpose of this utility model is will solve the deficiencies in the prior art part and a kind of speed change gear is provided.Can be according to work requirements, the speed change gear group of collocation different rotating speeds ratio makes and installs easier and can prevent from skidding.
A kind of speed change gear comprises gear body, is located at the axis hole of Gear center, and it is characterized in that: also comprise the axis hole prolonged section, described axis hole prolonged section is fixedlyed connected with gear body; This axis hole prolonged section is tubular, in it in circle and the described axis hole circle in the axial direction be projected as isometrical concentric circle.
Circle is provided with internal spline in the axis hole described in the utility model; Described axis hole prolonged section cylindrical is provided with external splines.
Compare with prior art and the utlity model has following characteristics and beneficial effect:
1, gear described in the utility model was fixed on small gear on the axis hole prolonged section of gearwheel in when work by spline, made to install easier and prevent from skidding.
2, by the fixing big small gear of spline, the integrated speed change gear group of comparing can have more the requirement of work and the combination of the different rotating speeds ratio of arranging in pairs or groups.
Description of drawings
Fig. 1 is the utility model front elevational schematic.
Fig. 2 looks schematic representation for the utility model left side.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further details.
Embodiment sees Fig. 1, and is shown in Figure 2:
Speed change gear described in the utility model comprises gear body 1, is located at the axis hole 2 of Gear center, and it is characterized in that: also comprise axis hole prolonged section 3, described axis hole prolonged section 3 is fixedlyed connected with gear body 1; This axis hole prolonged section 3 is tubular, in it in circle and described axis hole 2 circle in the axial direction be projected as isometrical concentric circle.Circle is provided with internal spline 4 in the described axis hole 2, axis hole 2 and axle is matched, and guaranteed can not skid between rotation process axis and axis hole 2.
Described axis hole prolonged section 3 cylindricals are provided with external splines 5.When work, selecting good and original gear has a certain proportion of ordinary gear two according to work requirements, be provided with internal spline in the axis hole of gear two, the gear two that chooses is set on the axis hole prolonged section 3 of gear body 1, match with the external splines on gear prolonged section 3 cylindricals, form a speed change gear combination.Integral body is installed on the axle again.The gear of different gear ratios can arbitrarily be arranged in pairs or groups, and assembles easier.
Claims (2)
1. speed change gear comprises gear body, is located at the axis hole of Gear center, and it is characterized in that: also comprise the axis hole prolonged section, described axis hole prolonged section is fixedlyed connected with gear body; This axis hole prolonged section is tubular, in it in circle and the described axis hole circle in the axial direction be projected as isometrical concentric circle.
2. speed change gear according to claim 1 is characterized in that: the round internal spline that is provided with in the described axis hole; Described axis hole prolonged section cylindrical is provided with external splines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220754470 CN203051685U (en) | 2012-12-24 | 2012-12-24 | Variable gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220754470 CN203051685U (en) | 2012-12-24 | 2012-12-24 | Variable gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051685U true CN203051685U (en) | 2013-07-10 |
Family
ID=48734640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220754470 Expired - Fee Related CN203051685U (en) | 2012-12-24 | 2012-12-24 | Variable gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051685U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524847A (en) * | 2016-06-21 | 2017-12-29 | 博格华纳公司 | With the gear drive component of one and its manufacture method in first choice gear and the second selection gear |
-
2012
- 2012-12-24 CN CN 201220754470 patent/CN203051685U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524847A (en) * | 2016-06-21 | 2017-12-29 | 博格华纳公司 | With the gear drive component of one and its manufacture method in first choice gear and the second selection gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20141224 |
|
| EXPY | Termination of patent right or utility model |