CN208831651U - A kind of milling machine driving speed reducer - Google Patents
A kind of milling machine driving speed reducer Download PDFInfo
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- CN208831651U CN208831651U CN201821523883.4U CN201821523883U CN208831651U CN 208831651 U CN208831651 U CN 208831651U CN 201821523883 U CN201821523883 U CN 201821523883U CN 208831651 U CN208831651 U CN 208831651U
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Abstract
The utility model discloses a kind of milling machine driving speed reducers, including double-row roller bearing, shaft end block plate, input flange, sealing ring, deflation bar, input shaft, front end shell, planetary reduction gear assembly and output flange, the input shaft is installed in front end shell by double-row roller bearing, input flange is set in the one end of input shaft being located on the outside of front end shell, input flange and input shaft are keyed, shaft end block plate is fastened by bolts part and is installed on the shaft end of input shaft and to input flange axial restraint, the outside installation set of input flange, sealing ring is set between set and front end shell, the connection of the upper end of end cap and second sleeve, spring is provided between end cap and piston, the utility model has the beneficial effects that speed reducer uses mechanical input, transmission efficiency is high, it high-power can input, speed reducer inner space is big, good heat dissipation effect , internal heat is discharged in due course by deflation bar, prevents internal high temperature.
Description
Technical field
The utility model belongs to pavement construction machinery milling machine equipment technical field, and in particular to a kind of driving speed reducer.
Background technique
The development of pavement milling machine and engineer application have longer history, have accumulated experience abundant, current 31, Xu
Work, Zhong Lianchong section etc. are to represent company constantly to put out a new product, and meet market needs, but failure rate is generally higher, as core
Heart milling and planing drum drives speed reducer, generally can not meet its poor working conditions needs, there is warm raising, oil leak, broken teeth, repairs and be stranded
Difficulty etc., and be essentially all many unfavorable factors such as power is small, transmission efficiency is low using hydraulic-driven, also in the early stage of development.
Utility model content
It increased for the driving speed reducer temperature of pavement milling machine in the prior art, be essentially all using hydraulic-driven, power
The problem of small, many unfavorable factors such as transmission efficiency is low, provide a kind of milling machine driving speed reducer.
A kind of milling machine driving speed reducer, including double-row roller bearing, shaft end block plate, input flange, sealing ring, deflation
Bar, input shaft, front end shell, planetary reduction gear assembly and output flange,
The input shaft is installed in front end shell by double-row roller bearing, and input flange is set in being located at for input shaft
One end on the outside of front end shell, input flange and input shaft are keyed, and shaft end block plate is fastened by bolts part and is installed on input shaft
Shaft end and to input flange axial restraint, sealing ring is arranged between set and front end shell in the outside installation set of input flange,
The front end shell is connect with planetary reduction gear assembly, and output flange and the transmission connection of planetary reduction gear assembly connect, defeated
Enter axis and planetary reduction gear assembly be sequentially connected,
The deflation bar is installed in front end shell, including first sleeve, baffle, second sleeve, end cap, spring and work
Plug, the lower end of the first sleeve and front end shell inside are connected to and are connected through a screw thread, the lower end spiral shell of upper end and second sleeve
Line connects, and lower end opens up small through hole in second sleeve, and upper end opens up large through-hole, and the small through hole is connected to large through-hole, described
Piston is located in large through-hole, and the upper end connection of end cap and second sleeve is provided with spring between end cap and piston, second sleeve
Upper end opens up air vent, and the air vent is connected to large through-hole, and the first sleeve lower part is staggeredly equipped with several block baffles
To form labyrinth type venting channels.
Preferably, the planetary reduction gear assembly includes fixing shell, ring gear, planetary gear, planet carrier and sun gear,
The sun gear is set on input shaft, and with planetary gear engaged transmission, fixed shell and front end shell pass through spiral shell
The connection of bolt fastener, ring gear are set to fixed enclosure interior and planetary gear engaged transmission, and planetary gear is installed on planet carrier
On, the periphery of planet carrier is machined with key, and the output flange inner hole is machined with keyway compatible with key, output flange and planet
Frame key connection.
The utility model has the beneficial effects that
Speed reducer uses mechanical input, and transmission efficiency is high, high-power can input, and speed reducer inner space is big, heat dissipation effect
Fruit is good, is discharged by deflation bar to internal heat in due course, prevents internal high temperature.
Detailed description of the invention
Fig. 1 is an embodiment of the present invention overall structure schematic diagram；
Fig. 2 is an embodiment of the present invention planetary reduction gear assembly transmission principle figure；
Fig. 3 is an embodiment of the present invention planet carrier structure schematic diagram；
Fig. 4 is an embodiment of the present invention deflation rod structure schematic diagram；
Fig. 5 is an embodiment of the present invention deflation bar deflation status figure.
Specific embodiment
Below with reference to the attached drawing in the utility model embodiment, the technical solution of the utility model is described further.
A kind of milling machine driving speed reducer, including double-row roller bearing 1, shaft end block plate 2, input flange 3, sealing ring 4,
Deflation bar 5, input shaft 6, front end shell 7, planetary reduction gear assembly 8 and output flange 9,
The input shaft 6 is installed in front end shell 7 by double-row roller bearing 1, and input flange 3 is set in input shaft 6
The one end for being located at the outside of front end shell 7, input flange 3 and input shaft 6 be keyed, and shaft end block plate 2 is fastened by bolts part peace
Shaft end loaded on input shaft 6 and to 3 axial restraint of input flange, the outside installation set 31 of input flange 3, set 31 and front end shell
Sealing ring 4 is set between 7,
The front end shell 7 is connect with planetary reduction gear assembly 8, and output flange 9 and the transmission connection of planetary reduction gear assembly 8 connect
It connecing, input shaft and planetary reduction gear assembly 8 are sequentially connected,
The deflation bar 5 is installed in front end shell 7, including first sleeve 51, baffle 52, second sleeve 53, end cap 55,
Spring 56 and piston 57 are connected to and are connected through a screw thread inside the lower end of the first sleeve 51 and front end shell 7, upper end and the
The lower thread of two sleeves 53 connects, and lower end opens up small through hole 532 in second sleeve 53, and upper end opens up large through-hole 533, described
Small through hole 532 is connected to large through-hole 533, and the piston 57 is located in large through-hole 533, and the upper end of end cap 55 and second sleeve 53 connects
It connects, spring 56 is provided between end cap 55 and piston 57, the upper end of second sleeve 53 opens up air vent 531, the air vent
531 are connected to large through-hole 533, and it is logical to form labyrinth type ventilation that 51 lower part of first sleeve is staggeredly equipped with several block baffles 52
Road.
As shown in Figure 1, speed reducer uses mechanical input, transmission efficiency is high, high-power can input, speed reducer inner space
Greatly, good heat dissipation effect discharges internal heat in due course by deflation bar 5, prevents internal high temperature.
As shown in figure 4, being the conventional sense schematic diagram of gas-tight bar 5, there is no hot gas or hot gas less inside front end shell 7
In the case where, under the action of spring 56, piston 57 is crushed on the step surface between small through hole 532 and large through-hole 533, by
The sealing of one sleeve 51.When generating amount of heat inside front end shell 7, air pressure inside increases, under the action of hot gas gram
The effect for taking spring 56 pushes up piston 57, as shown in figure 5, when piston 57 reaches the upper end of second sleeve 53, piston 57
Positioned at the upside of air vent 531, venting channels conducting, hot gas enters first sleeve 51 from shell 3, by second sleeve 53 from putting
Stomata 531 is discharged, and can effectively radiate, prevent 7 internal temperature of front end shell excessively high.
The planetary reduction gear assembly 8 includes fixed shell 81, ring gear 82, planetary gear 83, planet carrier 84 and sun gear
61,
The sun gear 61 is set on input shaft 6, with 83 engaged transmission of planetary gear, fixed shell 81 and front end shell
7 are fastened by bolts part connection, and ring gear 82 is set to fixed 81 inside of shell and 83 engaged transmission of planetary gear, planetary gear
83 are installed on planet carrier 84, and the periphery of planet carrier 84 is machined with key 841, and 9 inner hole of output flange is machined with and 841 phase of key
The keyway of adaptation, output flange 9 and planet carrier 84 are keyed.
As shown in Figure 1, 2, the sun gear 61 on input shaft 6 is slowed down by primary planet pinion, is exported by planet carrier 84,
Planet carrier 84 drives 9 output torque of output flange.
It will be appreciated that the embodiments of the present invention while there has been shown and described that, for the common skill of this field
For art personnel, it is possible to understand that can be carried out to these embodiments in the case where not departing from the principles of the present invention and spirit
A variety of change, modification, replacement and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (2)
1. a kind of milling machine driving speed reducer, which is characterized in that including double-row roller bearing (1), shaft end block plate (2), input
Flange (3), sealing ring (4), deflation bar (5), input shaft (6), front end shell (7), planetary reduction gear assembly (8) and output flange
(9),
The input shaft (6) is installed in front end shell (7) by double-row roller bearing (1), and input flange (3) is set in input
The one end of axis (6) being located on the outside of front end shell (7), input flange (3) and input shaft (6) are keyed, and shaft end block plate (2) passes through
Bolt fastener is installed on the shaft end of input shaft (6) and to input flange (3) axial restraint, and the outside of input flange (3) is installed
It covers (31), covers and sealing ring (4) are set between (31) and front end shell (7),
The front end shell (7) connect with planetary reduction gear assembly (8), and output flange (9) and planetary reduction gear assembly (8) are sequentially connected
Connection, input shaft and planetary reduction gear assembly (8) are sequentially connected,
The deflation bar (5) is installed on front end shell (7), including first sleeve (51), baffle (52), second sleeve (53),
End cap (55), spring (56) and piston (57), the lower end of the first sleeve (51) and front end shell (7) inside are connected to and pass through
It being threadedly coupled, upper end is connect with the lower thread of second sleeve (53), and lower end opens up small through hole (532) in second sleeve (53),
Upper end opens up large through-hole (533), and the small through hole (532) is connected to large through-hole (533), and the piston (57) is located at large through-hole
(533) in, end cap (55) is connect with the upper end of second sleeve (53), is provided with spring between end cap (55) and piston (57)
(56), the upper end of second sleeve (53) opens up air vent (531), and the air vent (531) is connected to large through-hole (533), institute
It states first sleeve (51) lower part and is staggeredly equipped with several block baffles (52) to form labyrinth type venting channels.
2. milling machine as described in claim 1 driving speed reducer, which is characterized in that the planetary reduction gear assembly (8) includes
Fixed shell (81), ring gear (82), planetary gear (83), planet carrier (84) and sun gear (61),
The sun gear (61) is set on input shaft (6), with planetary gear (83) engaged transmission, fixed shell (81) and front end
Shell (7) is fastened by bolts part connection, and ring gear (82) is set to inside fixed shell (81) and engages with planetary gear (83)
Transmission, planetary gear (83) are installed on planet carrier (84), and the periphery of planet carrier (84) is machined with key (841), the output method
Blue (9) inner hole is machined with to be keyed with key (841) compatible keyway, output flange (9) and planet carrier (84).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821523883.4U CN208831651U (en) | 2018-09-18 | 2018-09-18 | A kind of milling machine driving speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821523883.4U CN208831651U (en) | 2018-09-18 | 2018-09-18 | A kind of milling machine driving speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208831651U true CN208831651U (en) | 2019-05-07 |
Family
ID=66313674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821523883.4U Active CN208831651U (en) | 2018-09-18 | 2018-09-18 | A kind of milling machine driving speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208831651U (en) |
-
2018
- 2018-09-18 CN CN201821523883.4U patent/CN208831651U/en active Active
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