CN201679948U - Planet carrier component of cutting reducer for mining - Google Patents
Planet carrier component of cutting reducer for mining Download PDFInfo
- Publication number
- CN201679948U CN201679948U CN2010201931898U CN201020193189U CN201679948U CN 201679948 U CN201679948 U CN 201679948U CN 2010201931898 U CN2010201931898 U CN 2010201931898U CN 201020193189 U CN201020193189 U CN 201020193189U CN 201679948 U CN201679948 U CN 201679948U
- Authority
- CN
- China
- Prior art keywords
- planet wheel
- planet carrier
- wheel shaft
- planet
- hole
- 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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Classifications
-
- 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
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
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- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The utility model relates to a planet carrier component of cutting reducer for mining, which comprises a planet carrier and a planet wheel axle assembled on the planet carrier. One side wall of the planet carrier is provided with a front hole, and the other side wall of the planet carrier is provided with a back hole. The planet wheel axle is inserted from the back hole to the front hole. The front end of the planet wheel axle is connected in the front hole, and the back end of the planet wheel axle is connected in the back hole. The utility model is characterized in that: the hole diameter of the front hole is smaller than that of the back hole; the outer diameter of the front end of the planet wheel axle is smaller than that of the back end of the planet wheel; the front end of the planet wheel axle is connected with the front hole through transition fit; and the back end of the planet wheel axle is connected with the back hole through interference fit. The planet wheel axle penetrates from the back hole with large hole diameter and can pass through quickly. The assembling is more convenient and the assembling efficiency can be improved effectively. According to the utility model, the rigidity of the planet carrier can be effectively improved on the basis that the prior transmission structure of the reducer is not damaged.
Description
Technical field
The utility model belongs to machining manufacturing technology field, relates to a kind of appurtenances of retarder, specifically is a kind of mining cut retarder planet carrier parts.
Background technique
Retarder is the independently enclosed transmission device between prime mover and the working machine, and it is used for reducing and increasing torque, to satisfy need of work.Plane table thermoconductivity meter is the main type of speed reducer, and planet carrier is the critical piece in the plane table thermoconductivity meter, also be comparatively complicated parts, the type of planet carrier mainly contains three kinds of double-walled integrated type, double-walled split and single wall formulas, and planet carrier can adopt method manufacturings such as casting, forging and welding.
The cut retarder is the vitals on the coal winning machine, the planet carrier structure that is applied in the cut retarder at present is mainly the double-walled integrated type, two hole size unanimities that are used for the home row spider gear shaft, planet wheel shaft are interted in two holes, are transition fit between planet wheel shaft and the hole.Because two hole size unanimities, the efficiency of assembling of planet wheel shaft and planet carrier is lower.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of mining efficiently cut retarder planet carrier parts simple in structure, easy to assembly are provided, and it has strengthened the rigidity of planet carrier by increasing the installation magnitude of interference of planet wheel shaft.
The technological scheme that provides according to the utility model, described mining cut retarder planet carrier parts comprise planet carrier and are assemblied in planet wheel shaft on the planet carrier, on a sidewall of planet carrier, offer preceding hole, on another sidewall of planet carrier, offer metapore, planet wheel shaft is inserted into preceding hole via metapore, the front end of planet wheel shaft is connected in the preceding hole, and the rear end of planet wheel shaft is connected in the metapore; It is characterized in that: the aperture in described preceding hole is less than the aperture of metapore, and the front end external diameter of described planet wheel shaft is less than the rear end external diameter, adopts transition fit to connect between planet wheel shaft front end and the preceding hole, and the employing interference fit connects between planet wheel shaft rear end and the metapore.
As further improvement of the utility model, the aperture in described preceding hole is than the little 2～3mm in the aperture of metapore.
As further improvement of the utility model, the fit tolerance between described planet wheel shaft front end and the preceding hole is a H/js level transition fit tolerance, and the fit tolerance between planet wheel shaft rear end and the metapore is a H/r level interference fit tolerance.
As further improvement of the utility model, preceding hole on described planet wheel shaft and the planet carrier and metapore adopt the temperature differential method assembling to connect.
The utility model compared with prior art, advantage is: bigger metapore penetrates planet wheel shaft from the aperture, can pass through fast, assembles more conveniently, can effectively improve efficiency of assembling.The utility model can effectively increase the rigidity of planet carrier on the basis of not destroying former speed reducer drive mechanism.
Description of drawings
Fig. 1 is the structural representation of the utility model preferred embodiment.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in the figure: the mining cut retarder planet carrier parts among the embodiment comprise planet carrier 1 and are assemblied in planet wheel shaft 2 on the planet carrier 1, on a sidewall of planet carrier 1, offer preceding hole 3, on another sidewall of planet carrier 1, offer metapore 4, planet wheel shaft 2 is inserted into preceding hole 3 via metapore 4, the front end of planet wheel shaft 2 is connected in the preceding hole 3, and the rear end of planet wheel shaft 2 is connected in the metapore 4; The aperture in described preceding hole 3 is less than the aperture of metapore 4; As preferably, the aperture in preceding hole 3 is than the little 2～3mm in the aperture of metapore 4 in the utility model.The front end external diameter of described planet wheel shaft 2 is less than the rear end external diameter, adopts transition fit to connect between planet wheel shaft 2 front ends and the preceding hole 3, and the fit tolerance between planet wheel shaft 2 front ends and the preceding hole 3 is preferably H/js level transition fit tolerance; Adopt interference fit to connect between planet wheel shaft 2 rear ends and the metapore 4, the fit tolerance between planet wheel shaft 2 rear ends and the metapore 4 is preferably H/r level interference fit tolerance.
Preceding hole 3 on planet wheel shaft 2 of the present utility model and the planet carrier 1 and metapore 4 adopt the temperature differential methods assembling to connect.During assembling, planet wheel shaft 2 is at first made freezing processing, makes its reduced diameter; Planet wheel shaft 2 is packed into from metapore 4 ends then, because the point diameter of planet wheel shaft 2 is less than metapore 4 apertures, planet wheel shaft 2 can pass through metapore 4 fast; Planet wheel shaft 2 passes other parts such as spacer, bearing, planet wheel again by behind the metapore 4, in the front loaded preceding hole 3 of last planet wheel shaft 2, finishes thereby assemble in the shortest time.After the assembling, planet wheel shaft 2 is pressed thin, and preceding hole 3, metapore 4 are swollen, and produces very big radial pressure between matching surface, comes transmitting torque and axial force by the frictional force that is accompanied during work, make planet carrier rigidity increase greatly.
Claims (4)
1. mining cut retarder planet carrier parts, comprise planet carrier (1) and be assemblied in planet wheel shaft (2) on the planet carrier (1), on a sidewall of planet carrier (1), offer preceding hole (3), on another sidewall of planet carrier (1), offer metapore (4), planet wheel shaft (2) is inserted into preceding hole (3) via metapore (4), the front end of planet wheel shaft (2) is connected in the preceding hole (3), and the rear end of planet wheel shaft (2) is connected in the metapore (4); It is characterized in that: the aperture in described preceding hole (3) is less than the aperture of metapore (4), the front end external diameter of described planet wheel shaft (2) is less than the rear end external diameter, adopt transition fit to connect between planet wheel shaft (2) front end and preceding hole (3), the employing interference fit connects between planet wheel shaft (2) rear end and the metapore (4).
2. mining cut retarder planet carrier parts as claimed in claim 1, it is characterized in that: the aperture in described preceding hole (3) is than the little 2～3mm in aperture of metapore (4).
3. mining cut retarder planet carrier parts as claimed in claim 1, it is characterized in that: the fit tolerance between described planet wheel shaft (2) front end and preceding hole (3) is a H/js level transition fit tolerance, and the fit tolerance between planet wheel shaft (2) rear end and the metapore (4) is a H/r level interference fit tolerance.
4. mining cut retarder planet carrier parts as claimed in claim 1 is characterized in that: preceding hole (3) on described planet wheel shaft (2) and the planet carrier (1) and metapore (4) adopt the temperature differential method assembling to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201931898U CN201679948U (en) | 2010-05-18 | 2010-05-18 | Planet carrier component of cutting reducer for mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201931898U CN201679948U (en) | 2010-05-18 | 2010-05-18 | Planet carrier component of cutting reducer for mining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201679948U true CN201679948U (en) | 2010-12-22 |
Family
ID=43344992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201931898U Expired - Fee Related CN201679948U (en) | 2010-05-18 | 2010-05-18 | Planet carrier component of cutting reducer for mining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201679948U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358569A (en) * | 2014-09-17 | 2015-02-18 | 三一重型装备有限公司 | Coal cutter and travel unit's transmission mechanism |
| CN104747656A (en) * | 2015-03-18 | 2015-07-01 | 成都飞机工业（集团）有限责任公司 | Speed increasing device |
-
2010
- 2010-05-18 CN CN2010201931898U patent/CN201679948U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358569A (en) * | 2014-09-17 | 2015-02-18 | 三一重型装备有限公司 | Coal cutter and travel unit's transmission mechanism |
| CN104747656A (en) * | 2015-03-18 | 2015-07-01 | 成都飞机工业（集团）有限责任公司 | Speed increasing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20140518 |