CN205639526U - Excavator hydraulic variable speed shift system - Google Patents
Excavator hydraulic variable speed shift system Download PDFInfo
- Publication number
- CN205639526U CN205639526U CN201620324047.8U CN201620324047U CN205639526U CN 205639526 U CN205639526 U CN 205639526U CN 201620324047 U CN201620324047 U CN 201620324047U CN 205639526 U CN205639526 U CN 205639526U
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- China
- Prior art keywords
- gear
- clutch
- shaft
- housing
- shift system
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to an excavator hydraulic variable speed shift system, its characterized in that: including box, torque converter, oil pump, speed change mechanism and transfer case assembly, torque converter, oil pump, speed change mechanism and transfer case assembly all set up in the box, and torque converter's output is connected with speed change mechanism's input transmission, and speed change mechanism's output is connected with transfer case assembly's input transmission. Adopt the technical scheme of the utility model technical scheme after, with torque converter, speed change mechanism, oil pump and box of transfer case assembly sharing, the utility model discloses a letter of hydraulic variable speed shift system structure is gathered, power transmission path is succinct for system transmission stability saves occupation space more.
Description
Technical field
This utility model belongs to excavator technical field, is specifically related to a kind of excavator fluid power gear shift system.
Background technology
Change speed gear box is one of important drive disk assembly of excavator, speed and moment of torsion that it is responsible for transmitting electromotor pass to final transmission system, change the gear ratio between electromotor and wheel, the advance and the backward gear that realize excavator are handled, and cut off, in the case of may be implemented in electromotor operating, the power passing to running gear, to adapt to the needs of excavator operation and traveling, it is simple to the starting of electromotor and parking safety.
Traditional excavator fluid power gear shift system mainly uses manual shift structure, need to slam clutch during gearshift, by the power cut between electromotor and shifting system, after switching gear, then loosen the clutch so that carrying out power transmission between electromotor and shifting system.Using the gear shift system of this structure, need to slam continually and loosen the clutch, manipulation strength is relatively big, easily causes operator tired.
In traditional excavator fluid power gear shift system, fluid torque-converter, change speed gear box and transfer case assembly are split type, and whole gear shift system bulk is the hugest, takies more space.
In consideration of it, the problems referred to above are furtherd investigate by this case utility model people, this case is then had to produce.
Utility model content
The purpose of this utility model is to provide a kind of Stability Analysis of Structures, easy to operate, the excavator fluid power gear shift system that takes up room little.
In order to achieve the above object, the such technical scheme of this utility model employing:
Excavator fluid power gear shift system, including casing, fluid torque-converter, oil pump, gear and transfer case assembly, fluid torque-converter, oil pump, gear and transfer case assembly may be contained within casing, the outfan of fluid torque-converter is in transmission connection with the input of gear, and the outfan of gear is in transmission connection with the input of transfer case assembly.
nullAs a kind of optimal way of the present utility model，Described gear includes realizing forward range and retreating the first clutch axle assembly of gear switching、In order to realize low gear and the second clutch axle assembly of high speed gear switching、First power transmission shaft and second driving shaft，First clutch axle assembly、Second clutch axle assembly、First power transmission shaft and second driving shaft are all rotatably connected in described casing，Retrogressing clutch it is arranged with on first clutch axle assembly、The first gear coordinated with retrogressing clutch、Advance clutch and the 5th gear coordinated with advance clutch，Low speed clutch it is arranged with on second clutch axle assembly、The 4th gear coordinated with low speed clutch、High speed clutch and the eighth gear coordinated with high speed clutch，The outfan of second clutch axle assembly is in transmission connection with the input of described transfer case assembly，First power transmission shaft is provided with the second gear and the 6th gear，Second gear and the engagement of the first gear，Second driving shaft is provided with the 3rd gear and the 7th gear，7th gear and the engagement of the 6th gear，3rd gear and the engagement of the 4th gear，7th gear engages with eighth gear，The number of teeth of the 3rd gear is less than the 4th gear，The number of teeth of the 7th gear is more than eighth gear，5th gear and the engagement of the 7th gear.
As a kind of optimal way of the present utility model, it is fixed with the 9th gear on the outfan of described second clutch axle assembly, the first support shaft it is provided with in described casing, the tenth gear it is fixed with in first support shaft, tenth gear and the engagement of the 9th gear, it is provided with the second support shaft in described transfer case assembly, the two ends of the second support shaft are rotatably arranged in described casing, second support shaft is provided with the 11st gear engaged with the tenth gear, also include the first bevel gear, first bevel gear is fixed on the middle part of the second support shaft, it is provided with output shaft in described casing, output shaft is rotatably connected in described casing, one end of output shaft is the output unit stretching out described casing, the other end is the bevel gear part coordinated with the first bevel gear.
As a kind of optimal way of the present utility model, the two ends of described second support shaft are connected in described casing by clutch shaft bearing and the second bearing respectively.
As a kind of optimal way of the present utility model, described output shaft is vertically arranged with described second support shaft, and output shaft is rotatably connected in described casing by the 3rd bearing.
As a kind of optimal way of the present utility model, described casing includes in order to accommodating described fluid torque-converter and the first housing of described oil pump, the second housing in order to accommodating described gear and the 3rd housing in order to accommodating described transfer case assembly, the side of the second housing that the first housing is fixed by screw, the 3rd housing is fixed by screws in the opposite side of the second housing.
As a kind of optimal way of the present utility model, described fluid torque-converter includes housing, pump impeller, guide wheel, turbine, power shaft and output shaft, power shaft is connected with driving engine, output shaft is in transmission connection with the input of described gear, pump impeller is provided with conduit, output shaft wears in the catheter, and conduit stretches out housing and is rotatably arranged in described casing, and described oil pump and this conduit are in transmission connection and are positioned at outside housing.
As a kind of optimal way of the present utility model, also including fairlead, fairlead includes installation portion and the guide part being connected on installation portion, and guide part is arranged between the inwall of described output shaft and described conduit.
After using the technical scheme of the technical solution of the utility model, fluid torque-converter, gear, oil pump and transfer case assembly are shared a casing, fluid power gear shift system structure letter of the present utility model is gathered, drive path is succinct so that more preferably, saving takes up room drive system stability.
Accompanying drawing explanation
Fig. 1 is section view deployed configuration schematic diagram of the present utility model；
Fig. 2 is the enlarged drawing in Fig. 1 at A；
Fig. 3 is the enlarged drawing in Fig. 2 at B；
Fig. 4 be in Fig. 1 B-B to gear fit structure schematic diagram；
Fig. 5 be in Fig. 1 A-A to gear fit structure schematic diagram；
Fig. 6 be in Fig. 1 C-C to gear fit structure schematic diagram；
In figure:
1-the first gear 2-the second gear
3-the 3rd gear 4-the 4th gear
5-the 5th gear 6-the 6th gear
7-the 7th gear 8-eighth gear
9-the 9th gear 10-the tenth gear
11-the 11st gear 12-the first bevel gear
13-the first support shaft 21-the first housing
22-the second housing 23-the 3rd housing
30-first clutch axle assembly 31-retreats clutch
32-advance clutch 40-the first power transmission shaft
50-second driving shaft 60-second clutch axle assembly
61-low speed clutch 62-high speed clutch
70-fluid torque-converter 71-power shaft
72-housing 73-pump impeller
74-conduit 75-output shaft
76-installation portion 77-guide part
78-connecting plate 80-oil pump
90-the second support shaft 91-clutch shaft bearing
92-the second bearing 93-bevel gear part
94-output unit 95-the 3rd bearing
100-casing
Detailed description of the invention
In order to the technical solution of the utility model is explained further, it is described in detail below in conjunction with the accompanying drawings.
Referring to figs. 1 through Fig. 6, excavator fluid power gear shift system, including casing 100, fluid torque-converter 70, oil pump 80, gear and transfer case assembly, fluid torque-converter 70, oil pump 80, gear and transfer case assembly may be contained within casing 100, the outfan of fluid torque-converter 70 is in transmission connection with the input of gear, and the outfan of gear is in transmission connection with the input of transfer case assembly.Using this structure, fluid torque-converter 70, oil pump 80, gear and transfer case assembly are integrated in a casing, whole gear shift system structure is simpler gathers.
As a kind of optimal way of the present utility model, described gear includes realizing forward range and retreating the first clutch axle assembly 30 of gear switching, in order to realize low gear and the second clutch axle assembly 60 of high speed gear switching, first power transmission shaft 40 and second driving shaft 50, first clutch axle assembly 30, second clutch axle assembly 60, first power transmission shaft 40 and second driving shaft 50 are all rotatably connected in described casing 100, first clutch axle assembly 30, second clutch axle assembly 60, first power transmission shaft 40 and second driving shaft 50 4 be arranged in parallel.nullRetrogressing clutch 31 it is arranged with on first clutch axle assembly 30、The first gear 1 coordinated with retrogressing clutch 31、Advance clutch 32 and the 5th gear 5 coordinated with advance clutch 32，Low speed clutch 61 it is arranged with on second clutch axle assembly 60、The 4th gear 4 coordinated with low speed clutch 61、High speed clutch 62 and the eighth gear 8 coordinated with high speed clutch 62，The outfan of second clutch axle assembly 60 is in transmission connection with the input of described transfer case assembly，First power transmission shaft 40 is provided with the second gear 2 and the 6th gear 6，Second gear 2 engages with the first gear 1，Second driving shaft 50 is provided with the 3rd gear 3 and the 7th gear 7，7th gear 7 engages with the 6th gear 6，3rd gear 3 engages with the 4th gear 4，7th gear 7 engages with eighth gear 8，The number of teeth of the 3rd gear 3 is less than the 4th gear 4，The number of teeth of the 7th gear 7 is more than eighth gear 8，5th gear 5 engages with the 7th gear 7.Use this structure, control first clutch axle assembly 30 and second clutch axle assembly 60 by hydraulic oil, can realize advancing, fall back, at a high speed, the switching of lower-speed state, it is achieved the automatic catch control of excavator.
nullAs a kind of optimal way of the present utility model，It is fixed with the 9th gear 9 on the outfan of described second clutch axle assembly 60，The first support shaft 13 it is provided with in described casing 100，It is fixed with the tenth gear 10 in first support shaft 13，Tenth gear 10 engages with the 9th gear 9，The second support shaft 90 it is provided with in described transfer case assembly，The two ends of the second support shaft 90 are rotatably arranged in described casing 100，Second support shaft 90 is provided with the 11st gear 11 engaged with the tenth gear 10，Also include the first bevel gear 12，First bevel gear 12 is fixed on the middle part of the second support shaft 90，It is provided with output shaft in described casing 100，Output shaft is rotatably connected in described casing，One end of output shaft is the output unit 95 stretching out described casing 100，The other end is the bevel gear part 94 coordinated with the first bevel gear 12.As a kind of optimal way of the present utility model, the two ends of described second support shaft 90 are connected in described casing 100 by clutch shaft bearing 91 and the second bearing 92 respectively.Compared to cantilever structure of the prior art, using structure of the present utility model, the second support shaft 90 can the active force of dispersed first bevel gear 12 and not easy fracture such that it is able to ensure stable output.
In such scheme, retreat clutch 31, advance clutch 32, low speed clutch 61 and high speed clutch 62 identical with the cooperation principle of corresponding gear, it mainly includes piston, friction plate, shaping piece and back-moving spring, friction plate and shaping piece pressing is made by hydraulic oil, gear is rotated with corresponding clutch shaft assembly, carries out power transmission.
When using the technical solution of the utility model, its power transmission process is as follows:
1, ease astern: electromotor-fluid torque-converter-first clutch axle assembly the-the first gear the-the second gear the-the first power transmission shaft the-the six gear the-the seven gears-second driving shaft the-the three gear the-the four gears-second clutch axle assembly the-the nine gear the-the ten gear-the 11 gear the-the first bevel gear-output shaft.
2, high reverse: electromotor-fluid torque-converter-first clutch axle assembly the-the first gear the-the second gear the-the first power transmission shaft the-the six gear the-the seven gears-eighth gear-second clutch axle assembly the-the nine gear the-the ten gear-the 11 gear the-the first bevel gear-output shaft.
3, low-speed forward: electromotor-fluid torque-converter-first clutch axle assembly the-the five gear the-the seven gears-second driving shaft the-the three gear the-the four gears-second clutch axle assembly the-the nine gear the-the ten gear-the 11 gear the-the first bevel gear-output shaft.
4, advance at utmost speed: electromotor-fluid torque-converter-first clutch axle assembly the-the five gear the-the seven gears-eighth gear-second clutch axle assembly the-the nine gear the-the ten gear-the 11 gear the-the first bevel gear-output shaft.
Above-mentioned transmission road strength is succinct, can realize the walking of excavator by controlling hydraulic oil.
As a kind of optimal way of the present utility model, described output shaft is vertically arranged with described second support shaft 90, and output shaft is rotatably connected in described casing 100 by the 3rd bearing 95.
As a kind of optimal way of the present utility model, described casing includes in order to accommodating described fluid torque-converter 70 and the first housing 21 of described oil pump 80, the second housing 22 in order to accommodating described gear and the 3rd housing 23 in order to accommodating described transfer case assembly, the side of the second housing 22 that the first housing 21 is fixed by screw, 3rd housing 23 is fixed by screws in the opposite side of the second housing 22, and first housing the 21, second housing 22 and the 3rd housing 23 surround a casing.
As a kind of optimal way of the present utility model, described fluid torque-converter includes housing 72, pump impeller 73, guide wheel, turbine, power shaft 71 and output shaft 75, power shaft 71 is connected with driving engine, connecting plate 78 is specifically set on casing 100, electromotor is in transmission connection with this connecting plate 78 by flywheel, output shaft 75 is in transmission connection with the input of described gear, pump impeller 73 is provided with conduit 74, output shaft 75 is located in conduit 74, conduit 74 stretches out housing 72 and is rotatably arranged in described casing 100, described oil pump 80 is in transmission connection with this conduit 74 and is positioned at outside housing 72, specifically oil pump 80 set is through in this conduit 74, oil pump 80 and conduit 74 are by bonded.
Use this structure, electromotor drives pump impeller 73 to rotate by power shaft 71, and pump impeller 73 drives oil pump 80 to rotate, and oil pump 80 is divided into two-way, one road direction fluid torque-converter fuel feeding drives fluid torque-converter work, other hydraulic system fuel feeding of another road direction whole gear shift system.Wherein guide wheel and turbine structure all can use conventional structure of the prior art, and I will not elaborate.As preferably, described oil pump is crescent gear pump, and crescent gear pump is set in described conduit 74 by key.
As a kind of optimal way of the present utility model, also including fairlead, fairlead includes installation portion 76 and the guide part 77 being connected on installation portion 76, and guide part 77 is arranged between described output shaft 75 and the inwall of described conduit 74.
Product form of the present utility model is not limited to this case diagram and embodiment, and anyone carries out the suitably change of similar thinking to it or modifies, and all should be regarded as without departing from patent category of the present utility model.
Claims (8)
1. excavator fluid power gear shift system, it is characterised in that: include casing, fluid torque-converter,
Oil pump, gear and transfer case assembly, fluid torque-converter, oil pump, gear and transfer
Box assembly may be contained within casing, and the outfan of fluid torque-converter connects with the input transmission of gear
Connecing, the outfan of gear is in transmission connection with the input of transfer case assembly.
2. excavator fluid power gear shift system as claimed in claim 1, it is characterised in that: institute
State gear include realizing forward and the first clutch axle assembly retreating gear switch,
In order to realize low gear and high gear switching second clutch axle assembly, the first power transmission shaft and
Second driving shaft, first clutch axle assembly, second clutch axle assembly, the first power transmission shaft and
Two power transmission shafts are all rotatably connected in described casing, and first clutch axle assembly is arranged with retrogressing
Clutch with retreat clutch coordinates the first gear, advance clutch and with advance from
Close the 5th gear that mechanism coordinates, second clutch axle assembly is arranged with low speed clutch with low
The 4th gear that speed clutch coordinates, high speed clutch and coordinate with high speed clutch the
Octadentate is taken turns, and the outfan of second clutch axle assembly is in transmission connection with the input of described transfer case assembly,
First power transmission shaft is provided with the second gear and the 6th gear, the second gear and the first gear and engages, and second
Power transmission shaft is provided with the 3rd gear and the 7th gear, the 7th gear and the engagement of the 6th gear, the 3rd gear
Engaging with the 4th gear, the 7th gear engages with eighth gear, and the number of teeth of the 3rd gear is less than the 4th tooth
Wheel, the number of teeth of the 7th gear is more than eighth gear, the 5th gear and the engagement of the 7th gear.
3. excavator fluid power gear shift system as claimed in claim 2, it is characterised in that: institute
State and on the outfan of second clutch axle assembly, be fixed with the 9th gear, in described casing, be provided with first
Support shaft, the first support shaft is fixed with the tenth gear, the tenth gear and the engagement of the 9th gear, described
Being provided with the second support shaft in transfer case assembly, the two ends of the second support shaft are rotatably arranged in described case
Internal, the second support shaft is provided with the 11st gear engaged with the tenth gear, also includes the first umbrella
Gear, the first bevel gear is fixed on the middle part of the second support shaft, is provided with output shaft in described casing,
Output shaft is rotatably connected in described casing, and one end of output shaft is to stretch out described casing
Output unit, the other end is the bevel gear part coordinated with the first bevel gear.
4. excavator fluid power gear shift system as claimed in claim 3, it is characterised in that: described
The two ends of the second support shaft are connected in described casing by clutch shaft bearing and the second bearing respectively.
5. excavator fluid power gear shift system as claimed in claim 4, it is characterised in that: described
Output shaft is vertically arranged with described second support shaft, and described output shaft is rotatable by the 3rd bearing
Be connected in described casing.
6. excavator fluid power gear shift system as claimed in claim 5, it is characterised in that: institute
State casing to include in order to accommodating described fluid torque-converter and the first housing of described oil pump, in order to accommodating institute
State the second housing of gear and in order to house the 3rd housing of described transfer case assembly, the first shell
The side of the second housing that body is fixed by screw, the 3rd housing is fixed by screws in the second housing
Opposite side.
7. excavator fluid power gear shift system as claimed in claim 6, it is characterised in that: described
Fluid torque-converter includes housing, pump impeller, guide wheel, turbine, power shaft and output shaft, power shaft with
Driving engine connects, and output shaft is in transmission connection with the input of described gear, sets on pump impeller
Having conduit, output shaft to wear in the catheter, conduit stretches out housing and is rotatably arranged in described casing
In, described oil pump and this conduit are in transmission connection and are positioned at outside housing.
8. excavator fluid power gear shift system as claimed in claim 7, it is characterised in that: also wrap
Including fairlead, fairlead includes installation portion and the guide part being connected on installation portion, and guide part is arranged on
Between the inwall of described output shaft and described conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620324047.8U CN205639526U (en) | 2016-04-18 | 2016-04-18 | Excavator hydraulic variable speed shift system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620324047.8U CN205639526U (en) | 2016-04-18 | 2016-04-18 | Excavator hydraulic variable speed shift system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205639526U true CN205639526U (en) | 2016-10-12 |
Family
ID=57065669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620324047.8U Withdrawn - After Issue CN205639526U (en) | 2016-04-18 | 2016-04-18 | Excavator hydraulic variable speed shift system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205639526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697711A (en) * | 2016-04-18 | 2016-06-22 | 晋江市安海柳峰汽车配件工贸有限公司 | Hydraulic variable-speed shifting system of excavator |
-
2016
- 2016-04-18 CN CN201620324047.8U patent/CN205639526U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697711A (en) * | 2016-04-18 | 2016-06-22 | 晋江市安海柳峰汽车配件工贸有限公司 | Hydraulic variable-speed shifting system of excavator |
| CN105697711B (en) * | 2016-04-18 | 2018-01-09 | 晋江市安海柳峰汽车配件工贸有限公司 | Excavator fluid power gear shift system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161012 Effective date of abandoning: 20180109 |