CN208535133U - A kind of excavator running motor speed reducer - Google Patents
A kind of excavator running motor speed reducer Download PDFInfo
- Publication number
- CN208535133U CN208535133U CN201820936842.1U CN201820936842U CN208535133U CN 208535133 U CN208535133 U CN 208535133U CN 201820936842 U CN201820936842 U CN 201820936842U CN 208535133 U CN208535133 U CN 208535133U
- Authority
- CN
- China
- Prior art keywords
- connect
- ring gear
- gear
- planet
- ring
- 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
Links
Abstract
The utility model discloses a kind of excavator running motor speed reducers, it is characterized in that, including ring gear, ring gear is fastenedly connected with end cap, planetary gear speed reducing mechanism is equipped in ring gear, the other end of one end of planetary gear speed reducing mechanism and motor driven axis connection, planetary gear speed reducing mechanism is connect by plastic plug buffer structure with end cap；One end in ring gear is equipped with floating envelope with circle, floating envelope, which is matched, is equipped with the first O-ring seals between circle and ring gear, floating envelope is equipped with inner cavity with circle, inner cavity one end is equipped with step, step connect by V-type dustband with motor base, and floating envelope passes through float grease seal with circle inner cavity and connect with motor base groove inner cavity, set in ring gear there are two angular contact bearing, one angular contact bearing connect by adjusting gasket with motor base, another angular contact bearing is connect by half ring washer with two-stage planetary reduction mechanism.The utility model it is structurally reasonable it is simple and compact, impact is small, stability is high, transmission efficiency is high, cost is small, production and processing is convenient.
Description
Technical field
The utility model relates to a kind of excavator running motor speed reducers, belong to technical field of engineering machinery.
Background technique
Excavator is with running motor speed reducer mostly by motor drive shaft, sun gear, I and II planetary reducer at present
The main parts sizes such as structure, bearing, locking nut, float grease seal, ring gear, I and II baffle, end cap composition, the structure have
The advantages of compact-sized, low-speed big.But the primary planet deceleration mechanism of running motor speed reducer floating is in the work of outer power
With lower axial float, one baffle and needle bearing axial float are easy to damage, and then make to break inside reducer gear；Walk horse
Structure usually is adjusted with locking nut up to speed reducer adjustment bearing axial clearance, locking nut, which is easy to loosen, leads to planetary reducer
Structure axial float is bigger；In addition running motor speed reducer often uses float grease seal sealing structure easily to occur early stage leakage under bad working environments
Oily failure.
Summary of the invention
Technical problem to be solved by the utility model is: solving, primary planet deceleration mechanism is easy to damage, locking nut is easy
The problem of loosening, float grease seal oil leak.
In order to solve the above-mentioned technical problem, there is provided a kind of excavator running motors for the technical solution of the utility model
Speed reducer, which is characterized in that including ring gear, ring gear is fastenedly connected with end cap, and planetary gear speed reducing mechanism, row are equipped in ring gear
The other end of one end of star deceleration mechanism and motor driven axis connection, planetary gear speed reducing mechanism passes through plastic plug buffer structure and end cap
Connection；Planetary gear speed reducing mechanism includes primary planet deceleration mechanism and two-stage planetary reduction mechanism, and primary planet deceleration mechanism passes through
Primary planet wheel respectively with level-one sun gear external toothing, and ring gear internal messing, level-one sun gear and motor driven axis connection, one
Grade planetary gear speed reducing mechanism connect with secondary solar gear, two-stage planetary reduction mechanism pass through secondary planet wheel respectively with secondary solar gear
External toothing, with ring gear internal messing, two-stage planetary reduction mechanism is connect with motor base, and one end in ring gear is equipped with floating envelope and matches
Circle floats envelope with the first O-ring seals are equipped between circle and ring gear, floats envelope with circle and is equipped with inner cavity, inner cavity one end is equipped with step, platform
Rank is connect by V-type dustband with motor base, and floating envelope is connect by float grease seal with motor base groove inner cavity with circle inner cavity, internal tooth
It is set in circle there are two angular contact bearing, an angular contact bearing connect by adjusting gasket with motor base, another angular contact axis
It holds and is connect by half ring washer with two-stage planetary reduction mechanism.
Preferably, the primary planet deceleration mechanism, be equipped with planet carrier in two-stage planetary reduction mechanism, in planet carrier
Equipped with planetary gear, planetary gear is connect with needle bearing, and needle bearing is connect with planet wheel spindle；Planet wheel spindle passes through with planet carrier
Resilient key is fixed.
Preferably, the secondary solar gear is connect with the planet carrier of primary planet deceleration mechanism；Two-stage planetary reduction machine
The planet carrier of structure is connect with motor base；Angular contact bearing is connect by half ring washer with the planet carrier of two-stage planetary reduction mechanism.
Preferably, the second O-ring seals are equipped between the ring gear and end cap.
Preferably, the centre in the end cap is equipped with cylinder, and the center of cylinder is equipped with slot；Plastic plug buffer structure includes
Plastic plug and plastic washer, plastic plug are set in slot, and plastic washer is sheathed on cylinder.
The utility model it is structurally reasonable it is simple and compact, impact is small, stability is high, transmission efficiency is high, cost is small, production plus
Work is convenient, using the big bearing of plastic plug buffer structure, speed reducer between planetary gear speed reducing mechanism and end cap by adjusting gasket tune
Whole axial gap, semicircle retaining ring fixed structure, solve that primary planet deceleration mechanism is easy to damage, locking nut loosening causes to slow down
The problem of machine damages, to ensure that the normal work and stability of running motor speed reducer.The utility model floats common
Increase by one of V-type wiper seal on oil seal structure, efficiently solves soil, stone under bad working environments and enter walking
Float grease seal damage is caused early stage oil leakage fault occur inside motor reducer.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of excavator running motor speed reducer.
Specific embodiment
To be clearer and more comprehensible the utility model, hereby with preferred embodiment, and attached drawing is cooperated to be described in detail below.
The utility model is a kind of excavator running motor speed reducer, as shown in Figure 1 comprising ring gear 8, ring gear
8 are equipped with inner cavity, and interior intracavitary equipped with planetary gear speed reducing mechanism, planetary gear speed reducing mechanism includes level-one sun gear 16, secondary solar gear 10, one
Grade planetary gear speed reducing mechanism 11, two-stage planetary reduction machine mechanism 9, motor drive shaft couples with the spline of level-one sun gear 16, level-one
Planetary gear speed reducing mechanism 11 by primary planet wheel respectively with 16 external toothing of level-one sun gear, with 8 internal messing of ring gear, the second level sun
Wheel 10 couples with the primary planet carrier spline of primary planet deceleration mechanism 11, and two-stage planetary reduction mechanism 9 passes through secondary planet wheel
Respectively with 10 external toothing of secondary solar gear, with 8 internal messing of ring gear, the secondary planet frame and motor of two-stage planetary reduction mechanism 9
Seat spline connection；8 inner cavity one end of ring gear is sealed equipped with floating with circle 4, and floating envelope, which is matched, is equipped with the sealing of the first O shape between circle 4 and ring gear 8
Circle 3 floats envelope with circle 4 and is equipped with inner cavity, and inner cavity one end is equipped with step, and step is connect by V-type dustband 2 with motor base, and floating envelope is matched
4 inner cavities are enclosed to connect by float grease seal 1 with motor base groove inner cavity；Angular contact bearing 6 there are two being set in ring gear 8, an angle
Contact bearing 6 connect by adjusting gasket 5 with motor base, another angular contact bearing 6 is subtracted by half ring washer 7 with secondary planet
The secondary planet frame of fast mechanism 9 connects；8 other end of ring gear is fixedly connected with end cap 14 by screw 13, ring gear 8, end cap
The second O-ring seals 12 are equipped between 14；Centre in end cap 14 is equipped with cylinder, and the center of cylinder is equipped with slot, in end cap 14
It is equipped with plastic plug 17 in slot, is arranged with plastic washer 15 on the cylinder in end cap 14；Primary planet deceleration mechanism 11, secondary planet
Planet carrier is equipped in deceleration mechanism 9, and (planet carrier in primary planet deceleration mechanism 11 is primary planet carrier, two-stage planetary reduction
Planet carrier in mechanism 9 is secondary planet frame), planet carrier is interior to be equipped with planetary gear, and planetary gear is connect with needle bearing, needle bearing
It is connect with planet wheel spindle；Planet wheel spindle and planet carrier are fixed by resilient key.
When a kind of excavator provided by the utility model is worked with running motor speed reducer, hydraulic motor transmission axis rotation fortune
It is dynamic, it is transmitted on level-one sun gear 16 by spline connection, outside 11 planetary gear of primary planet deceleration mechanism and level-one sun gear 16
Engaged transmission, then by the internal messing with ring gear 8, ring gear 8 is driven to rotate, realize the utility model running motor speed reducer
Primary speed-down；Primary planet deceleration mechanism 11 rotates, and is transmitted to secondary solar gear 10 by the spline connection of primary planet carrier,
The planetary gear of two-stage planetary reduction mechanism 9 and 10 external toothing of secondary solar gear are driven, then pass through the internal messing with ring gear 8, band
Dynamic ring gear 8 rotates, and realizes the double reduction of the utility model running motor speed reducer.
The primary planet deceleration mechanism 11, two-stage planetary reduction mechanism 9 of the utility model are all made of planet carrier open type, row
Star-wheel and needle bearing are cooperatively connected, and needle bearing and planet wheel spindle are cooperatively connected, and planet wheel spindle and planet carrier are cooperatively connected, and
By the structure of the fixed planet wheel spindle of resilient key, the common resilient key baffle arrangement of planetary gear speed reducing mechanism is eliminated, is effectively prevented
Stop because axial float leads to resilient key, baffle, needle bearing damage, which had not only been easily installed operation, but also protected
Structural behaviour firm stable is demonstrate,proved；Plastic washer 15, plastic plug 17 between primary planet deceleration mechanism 11 and end cap 14 play
Buffer function efficiently reduces planetary gear speed reducing mechanism axial float and axial impact.
Two angular contact bearings 6 of the running motor speed reducer of the utility model are installed back-to-back, by adjusting the tune of gasket 5
Whole axial gap, and it is fixed by half ring washer 7, it eliminates with locking nut and adjusts the common structure of bearing axial clearance,
Effectively preventing locking nut loosening causes bearing load carrying capacity to decrease up to damage, and the utility model structure is more compact,
Part simply both easy to process, installation operations, in turn ensure structural behaviour firm stable.
The running motor speed reducer of the utility model uses 2 double sealing of float grease seal 1 and V-type dustband, when work, floats
Dynamic 1 one ring of oil sealing connect with circle 4 with floating envelope and rotates to be rotating ring, and another ring and motor base inner cavity groove are connected as stationary ring, and two rings are logical
The matching surface for crossing precise finiss constitutes the mechanical end face seal for preventing leakage；V-type dustband 2 and motor base, floating envelope are in circle 4
Chamber step is cooperatively connected, and is effectively prevented exterior earth, causes float grease seal to damage in sandstone enter motor and speed reducer gap
Oil leak.
Claims (5)
1. a kind of excavator running motor speed reducer, which is characterized in that including ring gear (8), ring gear (8) and end cap (14)
It is fastenedly connected, planetary gear speed reducing mechanism, one end of planetary gear speed reducing mechanism and motor driven axis connection, planet is equipped in ring gear (8)
The other end of deceleration mechanism is connect by plastic plug buffer structure with end cap (14)；Planetary gear speed reducing mechanism includes that primary planet slows down
Mechanism (11) and two-stage planetary reduction mechanism (9), primary planet deceleration mechanism (11) by primary planet wheel respectively with level-one too
Sun wheel (16) external toothing, with ring gear (8) internal messing, level-one sun gear (16) and motor driven axis connection, primary planet slow down
Mechanism (11) is connect with secondary solar gear (10), two-stage planetary reduction mechanism (9) by secondary planet wheel respectively with the second level sun
(10) external toothing is taken turns, with ring gear (8) internal messing, two-stage planetary reduction mechanism (9) is connect with motor base, in ring gear (8)
One end is equipped with floating envelope with circle (4), floats envelope with the first O-ring seals (3) are equipped between circle (4) and ring gear (8), floats envelope with circle
(4) it is equipped with inner cavity, inner cavity one end is equipped with step, and step is connect by V-type dustband (2) with motor base, floats envelope with circle (4) inner cavity
It is connect by float grease seal (1) with motor base groove inner cavity, sets that there are two angular contact bearing (6), a corner connections in ring gear (8)
Contact bearing (6) connect by adjusting gasket (5) with motor base, another angular contact bearing (6) passes through half ring washer (7) and second level
Planetary gear speed reducing mechanism (9) connection.
2. a kind of excavator running motor speed reducer as described in claim 1, which is characterized in that the primary planet subtracts
It is equipped with planet carrier on fast mechanism (11), two-stage planetary reduction mechanism (9), is equipped with planetary gear, planetary gear and needle roller in planet carrier
Bearing connection, needle bearing are connect with planet wheel spindle；Planet wheel spindle is fixed by resilient key with planet carrier.
3. a kind of excavator running motor speed reducer as claimed in claim 2, which is characterized in that the secondary solar gear
(10) it is connect with the planet carrier of primary planet deceleration mechanism (11)；The planet carrier and motor base of two-stage planetary reduction mechanism (9) connect
It connects；Angular contact bearing (6) is connect by half ring washer (7) with the planet carrier of two-stage planetary reduction mechanism (9).
4. a kind of excavator running motor speed reducer as described in claim 1, which is characterized in that the ring gear (8)
The second O-ring seals (12) are equipped between end cap (14).
5. a kind of excavator running motor speed reducer as described in claim 1, which is characterized in that in the end cap (14)
Centre be equipped with cylinder, the center of cylinder is equipped with slot；Plastic plug buffer structure includes plastic plug (17) and plastic washer (15), modeling
Material plug (17) is set in slot, and plastic washer (15) is sheathed on cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820936842.1U CN208535133U (en) | 2018-06-15 | 2018-06-15 | A kind of excavator running motor speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820936842.1U CN208535133U (en) | 2018-06-15 | 2018-06-15 | A kind of excavator running motor speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208535133U true CN208535133U (en) | 2019-02-22 |
Family
ID=65392414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820936842.1U Expired - Fee Related CN208535133U (en) | 2018-06-15 | 2018-06-15 | A kind of excavator running motor speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208535133U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547936A (en) * | 2018-06-15 | 2018-09-18 | 龙工（上海）精工液压有限公司 | Excavator running motor speed reducer |
-
2018
- 2018-06-15 CN CN201820936842.1U patent/CN208535133U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547936A (en) * | 2018-06-15 | 2018-09-18 | 龙工（上海）精工液压有限公司 | Excavator running motor speed reducer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108547936A (en) | Excavator running motor speed reducer | |
| CN101649816A (en) | Wind-power generating yaw speed reducer | |
| CN219366705U (en) | Novel planetary reducer | |
| CN105952849B (en) | A kind of planet optimization speed reducer | |
| CN203548785U (en) | Rotary driving device driven by double motors | |
| CN208535133U (en) | A kind of excavator running motor speed reducer | |
| CN203686069U (en) | Speed reducer with stable transmission | |
| CN202399133U (en) | Oil leakage preventing device for planetary grinding head | |
| CN202195011U (en) | Planetary speed reducer for floor polishing machine | |
| CN111425566A (en) | Walking motor speed reducer | |
| CN206637007U (en) | A kind of solid carving machine planetary reducer encapsulating structure | |
| CN214661776U (en) | Coaxial bevel gear speed reducer | |
| CN205911894U (en) | Well casement RV speed reducer | |
| CN206215932U (en) | A kind of sealing and the good main axle structure of anti-seismic performance | |
| CN212106807U (en) | Speed reducer for vertical transmission pump | |
| CN204253749U (en) | The speed reducer of a kind of involute gear and cycloidal gear combination transmission | |
| CN201396401Y (en) | Traveling planetary speed reducer | |
| CN210397672U (en) | Low-speed end structure of planetary gear box | |
| CN100470084C (en) | Star-wheel decelerator or speed regulator using mechanical core body | |
| CN209212896U (en) | Eccentrically arranged type mechanical reduction gear | |
| CN210566052U (en) | Planetary differential speed reducer | |
| CN201448196U (en) | Wind power generation yawing speed reducing device | |
| CN204664308U (en) | Spiral bevel gear speed reducer | |
| CN206723388U (en) | A kind of gear transmission structure of granulator | |
| CN201535236U (en) | Wind power generation planetary speed increaser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20190222 |