CN113389873A - Combined gear device for test - Google Patents
Combined gear device for test Download PDFInfo
- Publication number
- CN113389873A CN113389873A CN202110658391.6A CN202110658391A CN113389873A CN 113389873 A CN113389873 A CN 113389873A CN 202110658391 A CN202110658391 A CN 202110658391A CN 113389873 A CN113389873 A CN 113389873A
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- China
- Prior art keywords
- gear
- teeth
- sub
- tooth
- cover plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
Abstract
The invention relates to the technical field of manufacturing of mechanical test platforms, in particular to a combined gear device for tests, which is reasonable in structure and low in cost, is particularly suitable for vibration and noise tests of meshing transmission of a gear under the condition of damage and further improves the analysis and research efficiency of the vibration and the noise of the meshing transmission of the gear, and is provided with a gear body and gear teeth.
Description
The technical field is as follows:
the invention relates to the technical field of manufacturing of mechanical test platforms, in particular to a combined gear device for a test, which is reasonable in structure, low in cost and particularly suitable for a vibration and noise test of gear meshing transmission under the condition of damage, and further improves the efficiency of analyzing and researching the vibration and noise of the gear meshing transmission.
Background art:
the existing gears are rich in types, and comprise straight toothed cylindrical gears, helical toothed cylindrical gears, straight/helical bevel gears, spiral bevel gears and the like, although the gears are rich in types, each gear is single in structure, and gear teeth and a gear body are mostly integrated and cannot be disassembled. Therefore, when vibration analysis tests of meshing transmission under different gear breakage degrees are carried out, a large number of gears with different breakage conditions need to be provided to simulate various test states, and the broken gears after the tests have no use value, so that the test cost is high, and the waste of resources is caused.
The invention content is as follows:
aiming at the defects and shortcomings in the prior art, the invention provides the combined gear device for the test, which has a reasonable structure and low cost, is particularly suitable for the vibration and noise test of the meshing transmission of the gear under the condition of damage, and further improves the analysis and research efficiency of the vibration and noise of the meshing transmission of the gear.
The invention is achieved by the following measures:
the combined gear device for the test is provided with a gear body and gear teeth and is characterized in that a gear tooth mounting groove is formed in the gear body, the gear teeth are embedded and fixed in the gear tooth mounting groove, and the gear teeth are composed of more than two sub-teeth which are continuously arranged in the width direction of the gear teeth.
More than two sub-teeth with different widths are arranged in the gear teeth, so that simulation of different test states is facilitated.
The invention is used for forming more than two sub-teeth of the gear teeth, the adjacent sub-teeth are provided with matched embedded bulges or embedded grooves, or the adjacent sub-teeth are provided with matched embedded steps, and the more than two sub-teeth are embedded and connected with each other to form the gear teeth, thus being suitable for straight/helical gear test bodies.
The invention is used for forming more than two sub-teeth of the gear teeth, the sub-teeth are provided with pin holes, and the more than two sub-teeth are connected into the gear teeth through the fixed pin, so that the invention is suitable for straight/helical gear test bodies.
The gear tooth mounting groove on the gear body is internally provided with a strip rib, the bottoms of more than two sub-teeth in the gear tooth are provided with grooves matched with the strip rib, the more than two sub-teeth are sequentially buckled on the strip rib and are tightly pressed with each other, further, the gear tooth sub-tooth on the outermost side and the gear body are provided with matched screw holes, and the gear tooth sub-tooth on the outermost side and the gear body are locked through a locking screw.
The gear body is provided with an end cover plate for sealing the gear tooth mounting groove, the end cover plate is circular or annular, and a screw hole or a bolt hole is formed in the end cover plate and used for being locked and fixed with one end of a cylindrical gear body, sealing the gear tooth mounting groove and tightly pressing the gear tooth fixed in the gear tooth mounting groove; furthermore, the position of the threaded through hole on the end cover plate is provided with a boss structure, so that the plate structure can be protected from being damaged when the bolt is installed, and the boss structure is also arranged at the edge of the end cover plate and used for protecting the bolt installed inside from being damaged.
The bottom ends of more than two sub-teeth in the gear teeth are provided with bosses in interference fit with the gear tooth installation grooves, and each sub-tooth is installed on the gear body in interference fit.
Each gear tooth in the invention is independent, the technical scheme can provide four gear tooth assembly modes, one is as follows: each gear tooth is assembled by a plurality of sub-teeth in an embedding mode of concave-convex matching between adjacent sub-teeth and inclined surface contact, the sub-teeth are arranged on the gear body and are fastened by a left end cover plate and a right end cover plate by bolts to limit the axial positions of the sub-teeth relative to the gear, and the left end cover plate and the right end cover plate are respectively connected with the gear body by the bolts; secondly, the following steps: each gear tooth is formed by connecting a plurality of sub-teeth with through holes by long pins, the sub-teeth are arranged on the gear body and are fastened by a left end cover plate and a right end cover plate by bolts to limit the axial positions of the sub-teeth relative to the gear, and the left end cover plate and the right end cover plate are respectively connected with the gear body by bolts; thirdly, the method comprises the following steps: each gear tooth is formed by assembling each sub-tooth in a concave-convex fit mode, and each sub-tooth is installed on the gear body through a bolt; fourthly, the method comprises the following steps: the sub-teeth of each gear tooth are assembled in a concave-convex fit mode between the adjacent sub-teeth, and each sub-tooth is installed on the gear body in an interference fit mode; the gear teeth are damaged under different conditions, meshing transmission of the damaged gear can be realized, and the positions of the sub-teeth on the gear teeth can be changed to change the damage conditions of the meshed combined gear, so that various combined gears with different damage conditions can be combined by changing the positions of the sub-teeth with different damage conditions, and the meshing transmission of various gears with different damage conditions can be researched by using a small number of combined gears, so that the combined gear for the test can be widely applied to tests for researching vibration and noise of the gear under different damage conditions, resources can be saved, and the test cost can be greatly reduced.
Description of the drawings:
FIG. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of a gear tooth in embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of a gear body in embodiment 1 of the present invention.
FIG. 4 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 5 is a schematic structural view of a gear tooth in embodiment 2 of the present invention.
FIG. 6 is a schematic structural diagram of embodiment 3 of the present invention.
Fig. 7 is a structural schematic view of a gear body in embodiment 3 of the invention.
Fig. 8 is a schematic view of a gear tooth structure in embodiment 3 of the present invention.
FIG. 9 is a schematic structural view of embodiment 4 of the present invention.
Fig. 10 is a structural schematic view of a gear body in embodiment 4 of the invention.
Fig. 11 is a schematic view of a gear structure in embodiment 4 of the present invention.
Reference numerals: the gear comprises a gear body 1, gear teeth 2, a gear tooth mounting groove 3, sub-teeth 4, an embedding bulge 5, an embedding groove 6, an end cover plate 7, a pin hole 8, a fixing pin 9, an embedding step 10, a strip-shaped rib 11, a boss 12, a screw 13 and a spline hole 14.
The specific implementation mode is as follows:
the invention is further described below with reference to the accompanying drawings and examples.
Example 1:
as shown in fig. 1, fig. 2 and fig. 3, the present example provides a combined gear device of a spur gear for testing, which is provided with a gear body 1 and gear teeth 2, wherein the gear body 1 is provided with a gear tooth installation groove, the gear teeth are embedded and fixed in the gear tooth installation groove 3, and the gear teeth 1 are composed of more than two sub-teeth 4 which are continuously arranged along the width direction of the gear teeth; as shown in fig. 2, more than two sub-teeth 4 with different widths are arranged in the gear teeth 2, so that simulation of different test states is facilitated; more than two sub-teeth 4 for forming the gear teeth 2 are provided with matched embedded bulges 5 or embedded grooves 6 between the adjacent sub-teeth 4, and the more than two sub-teeth 4 are embedded and connected with each other to form the gear teeth 2;
the gear body 1 is provided with an end cover plate 7 for sealing the gear tooth mounting groove, the end cover plate 7 is circular or annular, and the end cover plate 7 is provided with a screw hole or a bolt hole for locking and fixing with one end of the cylindrical gear body 1, sealing the gear tooth mounting groove 3 and tightly pressing the gear tooth 2 fixed in the gear tooth mounting groove 3; the end cover plate is provided with a boss structure at the position of the threaded through hole, so that the plate structure can be protected from being damaged when the bolt is installed, and the boss structure is arranged at the edge of the end cover plate and used for protecting the bolt installed inside from being damaged.
Example 2:
as shown in fig. 4 and 5, the present example provides a straight/helical tooth cylindrical combined gear device for testing, which is provided with a gear body 1 and gear teeth 2, wherein the gear body 1 is provided with a gear tooth installation groove 3, the gear teeth 2 are embedded and fixed in the gear tooth installation groove 3, and the gear teeth 2 are composed of more than two sub-teeth 4 which are continuously arranged along the width direction of the gear teeth;
more than two sub-teeth 4 for forming the gear teeth 2 are provided with pin holes 8, and the more than two sub-teeth 8 are connected into the gear teeth 2 through a fixing pin 9 so as to be suitable for a straight/helical cylindrical gear test body.
Example 3:
as shown in fig. 6, 7 and 8, the present example provides a straight/helical bevel gear combined gear device for testing, which is provided with a gear body 1 and a gear tooth 2, wherein the gear body 1 is provided with a gear tooth installation groove 3, the gear tooth 2 is embedded and fixed in the gear tooth installation groove 3, and the gear tooth 2 is composed of more than two sub-teeth 4 continuously arranged along the width direction of the gear tooth 2; more than two sub-teeth 4 used for forming the gear teeth 2 are provided with a matched embedded step 10 between the adjacent sub-teeth 4, and the more than two sub-teeth 4 are embedded and connected with each other to form the gear teeth 2;
be equipped with bar muscle 11 in the teeth of a cogwheel mounting groove 3 on the gear body 1, in the teeth of a cogwheel 2 more than two sub-tooth 4 bottoms be equipped with bar muscle 11 complex recess, the sub-tooth 4 more than two lock in proper order is on bar muscle 11 to compress tightly each other through gomphosis step 10, be equipped with matched with screw hole on the sub-tooth 4 in the outside and the gear body 1, accomplish the locking of the sub-tooth 4 in the outside and gear body 1 through locking screw.
Example 4:
as shown in fig. 9, 10 and 11, the present example provides a spiral bevel gear assembly for testing, which includes a gear body 1 and gear teeth 2, wherein the gear body 1 is provided with a gear tooth installation groove 3, the gear teeth 2 are embedded and fixed in the gear tooth installation groove 3, and the gear teeth 2 are composed of more than two sub-teeth 4 continuously arranged along a gear tooth width direction; the bottom end of each sub-tooth 4 in the gear teeth 2 is provided with a boss 12 which is in interference fit with the gear tooth installation groove 3, and each sub-tooth 4 is installed on the gear body 1 through interference fit; more than two sub-teeth 4 with different widths are arranged in the gear teeth 2, so that simulation of different test states is facilitated.
The technical scheme of the invention can provide four combined gears for test, which are respectively a straight-tooth cylindrical combined gear, a helical-tooth cylindrical combined gear, a straight/helical-tooth combined bevel gear and a helical-tooth combined bevel gear; each gear tooth on the combined gear is independent, and the gear tooth has four assembling modes, one is: each gear tooth is assembled by a plurality of sub-teeth in an embedding mode of concave-convex matching and inclined surface contact between adjacent sub-teeth. The sub-teeth are arranged on the gear body and are fastened by the left cover plate and the right cover plate through bolts to limit the axial positions of the sub-teeth relative to the gear, and the left cover plate and the right cover plate are connected with the gear body through bolts respectively. Secondly, the following steps: each gear tooth is connected by a plurality of sub-teeth with through holes by long pins. The sub-teeth are arranged on the gear body and are fastened by the left cover plate and the right cover plate through bolts to limit the axial positions of the sub-teeth relative to the gear, and the left cover plate and the right cover plate are connected with the gear body through bolts respectively. Thirdly, the method comprises the following steps: each gear tooth is formed by assembling each sub-tooth in a concave-convex fit mode, and each sub-tooth is installed on the gear body through a bolt. Fourthly, the method comprises the following steps: the sub-teeth of each gear tooth are assembled in a concave-convex fit mode between the adjacent sub-teeth, and each sub-tooth is installed on the gear body in an interference fit mode.
The combined gear for testing can be widely applied to tests for researching vibration and noise of the gear under different damage conditions, so that resources can be saved, and the test cost can be greatly reduced.
Claims (9)
1. The combined gear device for the test is provided with a gear body and gear teeth and is characterized in that a gear tooth mounting groove is formed in the gear body, the gear teeth are embedded and fixed in the gear tooth mounting groove, and the gear teeth are composed of more than two sub-teeth which are continuously arranged in the width direction of the gear teeth.
2. The composite gear device for testing as claimed in claim 1, wherein more than two sub-teeth with different widths are provided in said gear teeth.
3. The composite gear device for testing according to claim 1, wherein, of the two or more sub-teeth for forming the gear teeth, a fitting protrusion or a fitting groove is provided between adjacent sub-teeth, or a fitting step is provided between adjacent sub-teeth, and the two or more sub-teeth are fitted and connected with each other to form the gear teeth.
4. The composite gear device for testing as claimed in claim 1, wherein the pin hole is formed in at least two of the sub-teeth constituting the gear teeth, and the at least two sub-teeth are connected to each other by the fixing pin to form the gear teeth.
5. The combined gear device for the test according to claim 1, wherein a bar-shaped rib is arranged in the gear tooth mounting groove on the gear body, grooves matched with the bar-shaped rib are arranged at the bottoms of more than two sub-teeth in the gear tooth, and the more than two sub-teeth are sequentially buckled on the bar-shaped rib and are mutually compressed.
6. The combined gear device for the test according to claim 5, wherein the outermost gear teeth and the gear body are provided with matching screw holes, and the outermost gear teeth and the gear body are locked by locking screws.
7. The combined gear device for the test according to claim 1, wherein the gear body is provided with an end cover plate for closing the gear tooth installation groove, the end cover plate is circular or annular, and a screw hole or a bolt hole is formed in the end cover plate and used for being locked and fixed with one end of the cylindrical gear body, closing the gear tooth installation groove and pressing the gear tooth fixed in the gear tooth installation groove.
8. A composite gear unit for testing as claimed in claim 7, wherein the threaded through holes in the end cover plates are provided with bosses to protect the cover plate from damage during bolt installation and bosses are provided on the edges to protect the internally installed bolts from damage.
9. The composite gear device for the test according to claim 1, wherein the bottom ends of more than two sub-teeth of the gear teeth are provided with bosses in interference fit with the gear tooth installation grooves, and each sub-tooth is installed on the gear body through interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110658391.6A CN113389873B (en) | 2021-06-10 | 2021-06-10 | Combined gear device for test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110658391.6A CN113389873B (en) | 2021-06-10 | 2021-06-10 | Combined gear device for test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113389873A true CN113389873A (en) | 2021-09-14 |
| CN113389873B CN113389873B (en) | 2022-05-31 |
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ID=77620902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110658391.6A Active CN113389873B (en) | 2021-06-10 | 2021-06-10 | Combined gear device for test |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002032745A1 (en) * | 2000-10-16 | 2002-04-25 | Caterpillar Inc. | Reduced sound transmitting sprocket for track-type machines |
| JP2003106393A (en) * | 2001-09-28 | 2003-04-09 | Kohara Gear Industry Co Ltd | Rack structure |
| US20030083166A1 (en) * | 2000-05-10 | 2003-05-01 | Jeff A. Greene | Multilayered flexible drive sprocket |
| CN105952865A (en) * | 2016-06-30 | 2016-09-21 | 王建法 | Inserting type gear |
| CN110173554A (en) * | 2019-05-15 | 2019-08-27 | 薛江波 | A kind of planetary gear |
| CN110410481A (en) * | 2019-09-04 | 2019-11-05 | 沧州市永高农牧机械科技有限公司 | A kind of elastic reset gear teeth driving wheel |
| CN111365232A (en) * | 2020-03-27 | 2020-07-03 | 武汉理工大学 | Gear pump experiment platform and gear damage detection method |
-
2021
- 2021-06-10 CN CN202110658391.6A patent/CN113389873B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030083166A1 (en) * | 2000-05-10 | 2003-05-01 | Jeff A. Greene | Multilayered flexible drive sprocket |
| WO2002032745A1 (en) * | 2000-10-16 | 2002-04-25 | Caterpillar Inc. | Reduced sound transmitting sprocket for track-type machines |
| JP2003106393A (en) * | 2001-09-28 | 2003-04-09 | Kohara Gear Industry Co Ltd | Rack structure |
| CN105952865A (en) * | 2016-06-30 | 2016-09-21 | 王建法 | Inserting type gear |
| CN110173554A (en) * | 2019-05-15 | 2019-08-27 | 薛江波 | A kind of planetary gear |
| CN110410481A (en) * | 2019-09-04 | 2019-11-05 | 沧州市永高农牧机械科技有限公司 | A kind of elastic reset gear teeth driving wheel |
| CN111365232A (en) * | 2020-03-27 | 2020-07-03 | 武汉理工大学 | Gear pump experiment platform and gear damage detection method |
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| Publication number | Publication date |
|---|---|
| CN113389873B (en) | 2022-05-31 |
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