CN201735857U - Processing cutter used for manufacturing circular arc chamfer angles in shape like duplex rack-rail gear teeth - Google Patents
Processing cutter used for manufacturing circular arc chamfer angles in shape like duplex rack-rail gear teeth Download PDFInfo
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- CN201735857U CN201735857U CN201020287741XU CN201020287741U CN201735857U CN 201735857 U CN201735857 U CN 201735857U CN 201020287741X U CN201020287741X U CN 201020287741XU CN 201020287741 U CN201020287741 U CN 201020287741U CN 201735857 U CN201735857 U CN 201735857U
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- circular arc
- rack rails
- process tool
- chamfering
- gear tooth
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Abstract
A processing cutter used for manufacturing circular arc chamfer angles in the shape of duplex rack-rail gear teeth comprises a processing cutter used for processing outer-side circular arc chamfer angles in the shape of rack-rail gear teeth and a processing cutter used for processing inner-side circular arc chamfer angles in the shape of rack-rail gear teeth; and circular arc structures of chamfer angles R4 are adopted at the grinding heads of the processing cutters used for processing outer/inner-side circular arc chamfer angles in the shape of rack-rail gear teeth.
Description
Technical field:
The utility model relates to rack rails wheel process tool technical field, particularly a kind of coal-winning machine duplex rack rails form of gear tooth circular arc chamfering process tool.
Background technology:
Along with the development of colliery to the high-yield and high-efficiency direction, require more and more higher to coal-winning machine: power wants big, and it is high that reliability is wanted.Like this, the tractive force of coal-winning machine and hauling speed are also in corresponding increase, and the impulsive force that coal-winning machine walking rack rails wheel is subjected to is also increasing, thereby in actual use rack rails wheel intensity is had very high requirement.Large-scale coal-winning machine MG650/1630-WD finds in the coal mining process: the active force between rack rails wheel and the pin row engagement causes losing efficacy because of rack rails wheel moment broken teeth sometimes.In order to address this problem, improve the service life of rack rails wheel, we analyze the fracture of duplex rack rails wheel, find out the main cause of its broken tooth failure, and have carried out research of technique.
Summary of the invention:
The utility model easily forms lower net carbide of toughness or massive carbide for the wedge angle position that solves the rack rails gear teeth, in use this position is the easiest cracks, thereby cause the technical problem of rack rails wheel broken teeth.The utility model proposes a kind of instrument that adds that is used to make duplex rack rails form of gear tooth circular arc chamfering, comprising the process tool that is used to process rack rails form of gear tooth outer arc chamfering, the described process tool that is used to process rack rails form of gear tooth outer arc chamfering comprises handle of a knife 1, drives wheel disc 2, cutter hub 3, neck 4 and bistrique 5, wherein has the arc structure of chamfering R4 at bistrique 5 places of process tool.Described process tool also comprises the process tool that is used to process rack rails form of gear tooth inner arc chamfering, the described process tool that is used to process rack rails form of gear tooth inner arc chamfering comprises handle of a knife 1, drives wheel disc 2, cutter hub 3, neck 4 and bistrique 6, wherein has the arc structure of chamfering R4 at bistrique 6 places of process tool.
Described process tool is applied to the three-shaft linkage CNC milling machine and processes circular arc chamfering.
The utility model adopts aforesaid circular arc chamfering process tool, change the profile of tooth chamfering of rack rails wheel the circular arc chamfering of R4 into after, improved the tissue morphology of carbide and the technical problem that stress is concentrated herein, eliminated the broken teeth phenomenon of duplex rack rails wheel.
Description of drawings:
Fig. 1: the side view and the front view of the duplex rack rails wheel that the utility model is related.
Fig. 2: the utility model is used to make the process tool of duplex rack rails form of gear tooth outer arc chamfering.
Fig. 3: the utility model is used to make the process tool of duplex rack rails form of gear tooth inner arc chamfering.
The specific embodiment:
In the rack rails wheel and pin row engagement process that coal-winning machine is used, often the discovery rack rails is taken turns repeatedly the phenomenon of broken teeth, through the research staff of the present utility model analysis of testing, draw according to the survey report analysis result: rack rails form of gear tooth wedge angle position is when the heat treatment carburizing, relative other position height of concentration of carbon herein, easily form lower net carbide or the massive carbide of toughness, sharp corner is that stress is concentrated the position simultaneously, therefore, in use, position is the easiest cracks for this, thereby causes rack rails wheel broken teeth.According to the check analysis result and through the utility model research staff's repetition test, the utility model adopts the circular arc chamfering that the profile of tooth chamfering of rack rails wheel is changed into R4, concentrates to reduce herein stress, improves the tissue morphology of carbide.
The duplex rack rails is taken turns as shown in Figure 1, and Fig. 1 is the side view and the front view of the related duplex rack rails wheel of the utility model.As can be seen from Figure 1, left side profile of tooth both ends of the surface are the inclined-plane, and the profile of tooth root is made up of circular arc and the root circle of 2-R22, and the outside all will the arc chord angle of falling R4 in the profile of tooth.Learn that from general cutter handbook round tool R is greater than 22 in the standard R4, so standard cutter can not be used for processing the R4 circular arc chamfering in the outside in the duplex rack rails form of gear tooth, and the present invention is intended to design the dedicated tool of the arc chord angle of falling R4.
The utility model is used to process the design of R4 circular arc chamfering cutter: design R4 arc forming face according to profile of tooth both ends of the surface bevel angle, the size of the R of root circle place has determined the diameter of knife bar, material and the hardness of selecting blade according to the material and the hardness of rack rails wheel.Design tooth profile outside R4 circular arc chamfering cutter is as shown shown in 2, Fig. 2 is used to make the process tool of duplex rack rails form of gear tooth outer arc chamfering for the utility model, it comprises handle of a knife 1, drives wheel disc 2, cutter hub 3, neck 4 and bistrique 5, wherein has the arc structure of chamfering R4 at bistrique 5 places of process tool.Again as shown in Figure 3 according to the inboard R4 circular arc chamfering of flank of tooth Design of length profile of tooth cutter, Fig. 3 is used to make the process tool of duplex rack rails form of gear tooth inner arc chamfering for the utility model, it comprises handle of a knife 1, drives wheel disc 2, cutter hub 3, neck 4 and bistrique 6, wherein has the arc structure of chamfering R4 at bistrique 6 places of process tool.
Utilize outside circular arc chamfering in Fig. 2, the cutter shown in Figure 3 processing rack rails form of gear tooth, because the profile of tooth end face is the inclined-plane, must program with the CNC milling machine of three-shaft linkage and Mastercam three-dimensional software and process outside circular arc chamfering in the rack rails form of gear tooth, therefore select VMC1250 three-shaft linkage CNC milling machine for use.In process of the test, speed of mainshaft S is 800 rev/mins, and feed speed F is 300mm/ minute, and primary feed is finished the R4 circular arc chamfering, and needing the time is 20 minutes.
After utilizing processing of the present utility model R4 circular arc chamfering cutter to change the profile of tooth chamfering of rack rails wheel the circular arc chamfering of R4 into, improved that the tissue morphology and the stress of carbide are concentrated herein.By type approval test, the broken teeth phenomenon of duplex rack rails wheel is almost eliminated.Utilize dedicated tool of the present utility model will process rack rails form of gear tooth chamfering and all make circular arc chamfering into, solved the broken teeth phenomenon of rack rails wheel in the coal mining process.
Though the utility model is described with reference to a plurality of embodiment; but the utility model is not limited to the foregoing description; be to be understood that those skilled in the art can carry out the suitable new embodiment that is combined to form to the parts that relate in the foregoing description, all should fall within the protection domain of the present utility model in the various tangible modifications and variations of carrying out on the basis that does not break away from the utility model principle.
Claims (3)
1. process tool that is used to make duplex rack rails form of gear tooth circular arc chamfering, it comprises the process tool that is used to process rack rails form of gear tooth outer arc chamfering, the described process tool that is used to process rack rails form of gear tooth outer arc chamfering comprises handle of a knife (1), drives wheel disc (2), cutter hub (3), neck (4) and bistrique (5), wherein locates to have the arc structure of chamfering R4 at the bistrique (5) of process tool.
2. the process tool that is used to make duplex rack rails form of gear tooth circular arc chamfering as claimed in claim 1, it is characterized in that, described process tool also comprises the process tool that is used to process rack rails form of gear tooth inner arc chamfering, the described process tool that is used to process rack rails form of gear tooth inner arc chamfering comprises handle of a knife (1), drives wheel disc (2), cutter hub (3), neck (4) and bistrique (6), wherein locates to have the arc structure of chamfering R4 at the bistrique (6) of process tool.
3. the process tool that is used to make duplex rack rails form of gear tooth circular arc chamfering as claimed in claim 1 or 2 is characterized in that described process tool is applied to the three-shaft linkage CNC milling machine and processes circular arc chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020287741XU CN201735857U (en) | 2010-08-11 | 2010-08-11 | Processing cutter used for manufacturing circular arc chamfer angles in shape like duplex rack-rail gear teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020287741XU CN201735857U (en) | 2010-08-11 | 2010-08-11 | Processing cutter used for manufacturing circular arc chamfer angles in shape like duplex rack-rail gear teeth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201735857U true CN201735857U (en) | 2011-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020287741XU Expired - Fee Related CN201735857U (en) | 2010-08-11 | 2010-08-11 | Processing cutter used for manufacturing circular arc chamfer angles in shape like duplex rack-rail gear teeth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201735857U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270680A (en) * | 2016-08-26 | 2017-01-04 | 西安煤矿机械有限公司 | The processing method of profile of tooth seamed edge rounded corner inside a kind of duplex rack rails wheel |
| CN109530766A (en) * | 2018-12-19 | 2019-03-29 | 西安煤矿机械有限公司 | A kind of processing method for processing guide slip shoe groove |
| CN112620758A (en) * | 2020-12-16 | 2021-04-09 | 中国航发哈尔滨轴承有限公司 | Tool and method for machining inner fillet of squirrel cage |
-
2010
- 2010-08-11 CN CN201020287741XU patent/CN201735857U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270680A (en) * | 2016-08-26 | 2017-01-04 | 西安煤矿机械有限公司 | The processing method of profile of tooth seamed edge rounded corner inside a kind of duplex rack rails wheel |
| CN109530766A (en) * | 2018-12-19 | 2019-03-29 | 西安煤矿机械有限公司 | A kind of processing method for processing guide slip shoe groove |
| CN112620758A (en) * | 2020-12-16 | 2021-04-09 | 中国航发哈尔滨轴承有限公司 | Tool and method for machining inner fillet of squirrel cage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Xi'an Coal Mining Machinery Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: XI'AN COAL MINING MACHINERY Co.,Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20190811 |