CN204477274U - A kind of planet carrier be used on retarder - Google Patents
A kind of planet carrier be used on retarder Download PDFInfo
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- CN204477274U CN204477274U CN201520106441.XU CN201520106441U CN204477274U CN 204477274 U CN204477274 U CN 204477274U CN 201520106441 U CN201520106441 U CN 201520106441U CN 204477274 U CN204477274 U CN 204477274U
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- planet
- planet carrier
- wheel shaft
- retarder
- stand
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Abstract
The utility model relates to the transmission device of mechanical field, especially relates to a kind of planet carrier be used on retarder, is applied on excavator hydraulic motor retarder.The novel planetary shelf structure that the utility model provides, the planet wheel shaft that planet carrier seat is wholely set, splined hole, described planet wheel shaft is positioned at planet stand surrounding, and described splined hole is positioned at planet stand central position, and is provided with spline double wedge in described splined hole.Compared with prior art advantageously, the integral type planet carrier structure noise reduction capability after casting is strong, and damping property is good for the utility model; Multiple planet wheel shafts after casting are clamped one time processing, and position degree precision is high, improves gear-driven stationarity; Planet carrier structure after casting reduces component number, improves workability during assembling, compact structure simultaneously, and the holistic cost produced in batches is reduced.
Description
Technical field
The utility model relates to a kind of planet carrier, especially for use in the planet carrier on retarder.
Background technique
Planet carrier is one of main member of planetary type gear transmission unit, and planet wheel shaft is contained on planet carrier.When planet wheel is as basic building block, it bears the maximum part of moment of face in mechanism.Structural design and the manufacture of planet wheel shaft have a significant impact the bearing capacity, noise and vibration etc. of the load distribution between each planet wheel and transmission device.In prior art, the planet wheel shaft of oil hydraulic motor retarder planet carrier and planet stand are steel part, and are split type.Excavator hydraulic motor especially running motor requires stable drive, and noise decibel is low, can bear certain load.And there is the accumulation of multiple part's machining errors in split type vibrational power flow, the problem that gear transmission stationarity reduces, and also the noise reduction power of steel part is low, damping difference, in addition split type number of parts is more, and workability during assembling is poor, and the holistic cost produced in batches is improved relatively.
Model utility content
The machining error existed for the split type planet carrier structure existed in prior art, assembling operation are poor, noise reduction and damping property relatively weak, produce the large problem of cost in batches, the utility model provides that a kind of noise reduction is high, cost of production is low, is used in the planet carrier on retarder.
For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions:
This planet carrier be used on retarder, it comprises planet stand 2, is positioned at least one planet wheel shaft 1 on planet stand 2 periphery, and described planet wheel shaft 1 top is respectively arranged with the pin-and-hole of mounting spring pin.Its special way is: planet stand 2 and planet wheel shaft 1 are integral type structure.
Further, described planet stand 2 is round structure, and described planet wheel shaft 1 is three, is distributed on the same standard pitch circle of planet stand 2.
Further, be provided with splined hole 3 in the central position of planet carrier seat 2, to install driving gear.When the carrier of planet carrier as elementary or intergrade planet wheel shaft, its central position is provided with splined hole 3, so that by this splined hole connection for transmission gear.When the carrier of planet carrier as end planet wheel shaft, its central position is provided with splined hole 3, accepts and exports carrier.
Further, planet stand 2 and planet wheel shaft 1 are made for cast iron materials.It is low that cast iron has cost, and hardness is high, has excellent casting, cutting and wear-resisting property, and high weakening, to improving the precision of planet carrier, working life and noise reductionly laying a good foundation.
Compared with prior art advantageously, the noise reduction capability of the integral type planet carrier structure after casting is strong, and damping property is good for the utility model; Multiple planet wheel shafts after casting are clamped one time processing, and position degree precision is high, improves gear-driven stationarity; Planet carrier structure after casting reduces component number, improves workability during assembling, compact structure simultaneously, and the holistic cost produced in batches is reduced.Particularly when planet carrier is cast iron materials, its cost is low, easily processes, and wear resistance and noise reduction advantage manifest further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is that the A-A of Fig. 1 is to sectional view;
Description of symbols: 1, planet wheel shaft, 2, planet stand, 3, splined hole, 4, spring pin hole, 5, spline tooth.
Embodiment
Provide embodiment of the present utility model below in conjunction with Fig. 1 and Fig. 2, the utility model further illustrated:
Be described for the primary planet carrier be used on excavator hydraulic motor retarder.Be used in planet carrier structure on retarder as shown in Figure 1 and Figure 2.Planet stand 2 and planet wheel shaft 1 are cast iron materials, shaping through one-step casting, and then form through cutting.Splined hole 3 can be cast in the lump when casting planet stand 2 and planet wheel shaft 1 and form, and also can form through following process.Planet wheel shaft 1 is three, and they are distributed on the identical graduation circle of planet stand 2, and the top of each planet wheel shaft 1 all has the spring pin hole 4 of mounting spring pin.Splined hole 3 is positioned at the central position of planet stand 2, and the peripheral teeth of splined hole 3 is spline tooth 5, and the quantity of its tooth needs to arrange routinely.
The present embodiment only provides the specific embodiment with three planet wheel shafts, the design of part feature that can assemble according to specific needs, arranges 1,2,4,5 or multiple planet wheel shaft.
Embodiment recited above is described preferred implementation of the present utility model, not limits design of the present utility model and scope.Under the prerequisite not departing from the utility model design concept, the various modification that related domain ordinary person makes the technical solution of the utility model and improvement, all should drop into protection domain of the present utility model.
Claims (5)
1. one kind is used in the planet carrier on retarder, it comprises planet stand (2), be positioned at least one planet wheel shaft (1) on planet stand (2) periphery, described planet wheel shaft (1) top is provided with the pin-and-hole of mounting spring pin, it is characterized in that: planet wheel shaft (1) and planet stand (2) are integral type structure.
2. a kind of planet carrier be used on retarder as claimed in claim 1, it is characterized in that: described planet stand (2) is round structure, described planet wheel shaft (1) is three, is distributed on the same standard pitch circle of planet stand (2).
3. a kind of planet carrier be used on retarder as claimed in claim 1 or 2, is characterized in that: be provided with splined hole (3) in the central position of planet carrier seat (2).
4. a kind of planet carrier be used on retarder as claimed in claim 1 or 2, is characterized in that: planet stand (2) and planet wheel shaft (1) are made for cast iron materials.
5. a kind of planet carrier be used on retarder as claimed in claim 3, is characterized in that: planet stand (2) and planet wheel shaft (1) are made for cast iron materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520106441.XU CN204477274U (en) | 2015-02-14 | 2015-02-14 | A kind of planet carrier be used on retarder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520106441.XU CN204477274U (en) | 2015-02-14 | 2015-02-14 | A kind of planet carrier be used on retarder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204477274U true CN204477274U (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520106441.XU Active CN204477274U (en) | 2015-02-14 | 2015-02-14 | A kind of planet carrier be used on retarder |
Country Status (1)
| Country | Link |
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| CN (1) | CN204477274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020216487A1 (en) * | 2019-04-25 | 2020-10-29 | Robert Bosch Gmbh | Electromechanical braking pressure generator having a transmission and method for manufacturing a transmission for an electromechanical braking pressure generator |
-
2015
- 2015-02-14 CN CN201520106441.XU patent/CN204477274U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020216487A1 (en) * | 2019-04-25 | 2020-10-29 | Robert Bosch Gmbh | Electromechanical braking pressure generator having a transmission and method for manufacturing a transmission for an electromechanical braking pressure generator |
| US12060045B2 (en) | 2019-04-25 | 2024-08-13 | Robert Bosch Gmbh | Electromechanical brake pressure generator including a gear and method for manufacturing a gear for an electromechanical brake pressure generator |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |