CN208487168U - Hydraulic transmission gearbox for minitype wheeled digging machine - Google Patents
Hydraulic transmission gearbox for minitype wheeled digging machine Download PDFInfo
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- CN208487168U CN208487168U CN201821101056.6U CN201821101056U CN208487168U CN 208487168 U CN208487168 U CN 208487168U CN 201821101056 U CN201821101056 U CN 201821101056U CN 208487168 U CN208487168 U CN 208487168U
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Abstract
The utility model discloses a kind of hydraulic transmission gearboxes for minitype wheeled digging machine, including fluid torque-converter, oil pump assy and cabinet, cabinets cavity is equipped with reverse gear group interconnected, two third gear transmission groups and output transmission group, fluid torque-converter is connect with a reverse gear group, power taking mouth is provided in cabinet, oil pump assy is installed on cabinet and extends to be formed in power taking mouth with fluid torque-converter and connects, oil pump assy also passes through oil circuit and connect with a reverse gear group and two third gear transmission groups, the transmission case connecting with output transmission group is also installed on cabinet, the outbound course of transmission case is vertical with the output outbound course of transmission group.The transfer gear box have the advantages that it is simple and compact for structure, low in cost, using efficient.
Description
Technical field
The utility model relates generally to hydraulic transmission gearbox more particularly to a kind of fluid power for minitype wheeled digging machine passes
Dynamic gearbox.
Background technique
Various infrastructure projects largely use digging machine.Digging machine is generally divided into large-scale digging machine and Miniature digging machine by kerb weight.It is whole
Standby weight is regarded as Miniature digging machine less than 10 tons.According to present application trend, Miniature digging machine uses more and more extensive.It is small-sized
Digging machine is divided into two types, i.e. crawler type and wheeled.Wheel excavator compared with crawler type digging machine, its advantage is that: structure is relatively simple
It is single；It can voluntarily transition；Auxiliary ensures and maintainability is good.The disadvantage is that: in exceedingly odious use environment, applicability is not as good as shoe
Belt.
The transmission system of domestic minitype wheeled digging machine only has two classes at present.The first kind is static pressure transmission.Its advantage is to dig
Good operation performance when pick.Its disadvantage is: digging machine manufacture, use and maintenance cost are higher；Shift must stop when digging machine is walked.
Second class is machine driving.The gearbox that its gearbox generally selects ready-made jubilee wagen to use.Digging machine manufacture
And cost is relatively low for working service；But the climbing capacity of digging machine is not so good as the first kind, and gear shift operation labor intensity is larger.
Therefore many main engine plants propose, it is desirable to have transmission system of a Novel gear box as minitype wheeled digging machine, it can
The advantages of in summary transmission system, cost is not higher than static pressure transmission, to meet the market demand.
Utility model content
The technical problems to be solved in the utility model be overcome the deficiencies of the prior art and provide it is a kind of it is simple and compact for structure,
It is low in cost, use efficiently be used for minitype wheeled digging machine hydraulic transmission gearbox.
In order to solve the above technical problems, the utility model uses following technical scheme:
A kind of hydraulic transmission gearbox for minitype wheeled digging machine, including fluid torque-converter, oil pump assy and cabinet, institute
Cabinets cavity is stated equipped with reverse gear group interconnected, two third gear transmission groups and output transmission group, the fluid torque-converter
It is connect with a reverse gear group, power taking mouth is provided in the cabinet, the oil pump assy is installed on cabinet and extends to power taking
It being formed and is connected with fluid torque-converter in mouthful, oil pump assy also passes through oil circuit and connect with a reverse gear group and two third gear transmission groups,
The transmission case connecting with output transmission group, outbound course and the output transmission group of the transmission case are also installed on the cabinet
Outbound course is vertical.
As a further improvement of the above technical scheme:
The hydraulic oil trend for control oil pump assembly is installed on the cabinet to realize the control assembly of gear switch.
The one reverse gear group includes the first transmission shaft, first clutch drum, back gear and a shelves gear, and described the
One transmission shaft is connect with fluid torque-converter, and the first clutch drum, back gear and a shelves gear are installed in the first transmission shaft
Upper and back gear and a shelves gear set up separately in first clutch drum two sides, and the back gear is connect with output transmission group, institute
It states first clutch drum and a shelves gear is connect with two third gear transmission groups.
The two third gear transmission group includes second driving shaft, second clutch drum, intermediate gear, third gear and the second biography
Moving gear, the second clutch drum, intermediate gear, third gear and the second transmission gear be installed on second driving shaft and
Intermediate gear and third gear set up separately in second clutch drum two sides, and the third gear and first clutch drum connect, described
Second clutch drum is connect with a shelves gear, and second transmission gear is connect with output transmission group, on first transmission shaft
It is also installed with the first transmission gear, the intermediate gear is connect with the first transmission gear.
The output gear that the output transmission group includes output shaft and is installed on output shaft, the output gear and second
Transmission gear connection.
The transmission case includes that box shell sets within it drive bevel gear, driven wheel of differential and the transmission output shaft of chamber, institute
It states box shell to connect with box sealing, the drive bevel gear is connect with output transmission group, and the transmission output shaft is by from mantle
Gear is connect with drive bevel gear, and the output end of the transmission output shaft is connected with output flange.
The oil pump assy includes oil pump, pump gear, idle pulley and two splines, the idle pulley be mounted in power taking mouth and with
Fluid torque-converter connection, the pump gear are mounted in power taking mouth and connect with idle pulley, it is arranged in pump gear in two splines
In a spline is connect with oil pump, the high pressure main oil pump of another spline and wheel excavator connects.
Compared with the prior art, the advantages of the utility model are:
The hydraulic transmission gearbox for minitype wheeled digging machine of the utility model in the structure, passes through a reverse gear
Group, two third gear transmission groups and output transmission group can be realized ahead three gear, retreat a gear, and transmission ratio is reasonable, adapts to
Short distance voluntarily hauling operation when digging machine transition；Using hydraulic power mode, shift is steady, and vehicle operation drives without pause and transition in rhythm or melody sense
Member's labor intensity reduces；Meanwhile main oil pump power taking mouth can provide full engine power output, and it is tight to meet wheel excavator inner space
Gather requirement, manufacturing cost is lower than static pressure transmission；The outbound course of transmission case is vertical with the output outbound course of transmission group, that is, is driven
The outbound course of case is downward, the requirement of 4 wheel driven needed for adapting to wheel excavator.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the utility model.
Each label indicates in figure:
1, fluid torque-converter；2, oil pump assy；21, oil pump；22, pump gear；23, idle pulley；24, spline；3, cabinet；31,
Power taking mouth；4, a reverse gear group；41, the first transmission shaft；42, first clutch drum；43, back gear；44, a shelves gear；
45, the first transmission gear；5, two third gear transmission group；51, second driving shaft；52, second clutch drum；53, intermediate gear；54,
Third gear；55, the second transmission gear；6, transmission group is exported；61, output shaft；62, output gear；7, transmission case；71, box shell；
72, drive bevel gear；73, driven wheel of differential；74, transmission output shaft；75, output flange；8, assembly is controlled.
Specific embodiment
The utility model is described in further details below with reference to Figure of description and specific embodiment.
As shown in Figure 1, a kind of embodiment of the utility model for the hydraulic transmission gearbox of minitype wheeled digging machine, the change
Fast luggage includes fluid torque-converter 1, oil pump assy 2 and cabinet 3,3 inner cavity of cabinet be equipped with reverse gear group 4 interconnected,
Two third gear transmission groups 5 and output transmission group 6, fluid torque-converter 1 are connect with a reverse gear group 4, and power taking mouth is provided in cabinet 3
31, oil pump assy 2 is installed on cabinet 3 and extends to be formed in power taking mouth 31 with fluid torque-converter 1 and connects, and oil pump assy 2 is also logical
It crosses oil circuit to connect with a reverse gear group 4 and two third gear transmission groups 5, the biography connecting with output transmission group 6 is also installed on cabinet 3
The outbound course of dynamic case 7, transmission case 7 is vertical with the output outbound course of transmission group 6.In the structure, pass through a reverse gear group
4, two third gear transmission groups 5 and output transmission group 6 can be realized ahead three gear, retreat a gear, and transmission ratio is reasonable, adapts to
Short distance voluntarily hauling operation when digging machine transition；Using hydraulic power mode, shift is steady, and vehicle operation drives without pause and transition in rhythm or melody sense
Member's labor intensity reduces；Meanwhile main oil pump power taking mouth can provide full engine power output, and it is tight to meet wheel excavator inner space
Gather requirement, manufacturing cost is lower than static pressure transmission；The outbound course of transmission case 7 is vertical with the output outbound course of transmission group 6, that is, passes
The outbound course of dynamic case 7 is downward, the requirement of 4 wheel driven needed for adapting to wheel excavator.
In the present embodiment, it is installed on box body 3 and moves towards for the hydraulic oil of control oil pump assembly 2 to realize gear switch
Control assembly 8.The control assembly 7 reaches the hydraulic oil pump of control oil pump assembly 2 to a reverse gear group 4 and two third gear transmission groups
5 and oil circuit on-off realize gear automatically switch, improve the degree of automation, reduce the labor intensity of driver.
In the present embodiment, a reverse gear group 4 includes the first transmission shaft 41, first clutch drum 42,43 and of back gear
One shelves gear 44, the first transmission shaft 41 are connect with fluid torque-converter 1, first clutch drum 42, back gear 43 and a shelves gear
44 are installed on the first transmission shaft 41 and back gear 43 and a shelves gear 44 set up separately in 42 two sides of first clutch drum, reverse gear
Gear 43 is connect with output transmission group 6, and first clutch drum 42 and a shelves gear 44 are connect with two third gear transmission groups 5.The knot
In structure, when needing to fall back, control assembly 8 makes gear switch to reverse gear by oil pump assy 2, and back gear 43 is logical at this time
Output transmission group 6 is crossed to be exported；When switching to one grade of gear, first clutch drum 42 drives a shelves gear 44 and two third gear
Transmission group 5 forms connection, and two third gear transmission groups 5 are exported by exporting transmission group 6 again, simple and reliable for structure.
In the present embodiment, two third gear transmission groups 5 include second driving shaft 51, second clutch drum 52, intermediate gear 53, three
Shelves gear 54 and the second transmission gear 55, second clutch drum 52, intermediate gear 53, third gear 54 and the second transmission gear 55
It is installed on second driving shaft 51 and intermediate gear 53 and third gear 54 sets up separately in 52 two sides of second clutch drum, third gear tooth
Wheel 54 is connect with first clutch drum 42, and second clutch drum 52 is connect with a shelves gear 44, the second transmission gear 55 and output
Transmission group 6 connects, and the first transmission gear 45 is also installed on the first transmission shaft 41, and intermediate gear 53 and the first transmission gear 45 connect
It connects.In the structure, when switching to two grades of gears, second clutch drum 52 drives the first transmission gear 45 to connect with intermediate gear 53
It connects, then is exported by the second transmission gear 55 and output transmission group 6；When switching to third gear gear, second clutch drum
52 drive third gear 54 to connect with first clutch drum 42, then are carried out by the second transmission gear 55 and output transmission group 6 defeated
Out, simple and reliable for structure.
In the present embodiment, output transmission group 6 includes output shaft 61 and the output gear 62 being installed on output shaft 61, output
Gear 62 is connect with the second transmission gear 55.In the structure, all gears are finally by output gear 62 and output shaft
61 are exported, simple for structure.
In the present embodiment, transmission case 7 includes that box shell 71 sets within it the drive bevel gear 72 of chamber, 73 and of driven wheel of differential
Transmission output shaft 74, box shell 71 and cabinet 3 are tightly connected, and drive bevel gear 72 is connect with output transmission group 6, transmission output shaft 74
It is connect by driven wheel of differential 73 with drive bevel gear 72, the output end of transmission output shaft 74 is connected with output flange 75.The knot
In structure, the power of output shaft 61 is transferred to drive bevel gear 72, the transmission formed by drive bevel gear 72 and driven wheel of differential 73
Pair turns to power, is switched to straight down by level, then carries out output drive by transmission output shaft 74 and output flange 75
Dynamic digging machine is mobile, the requirement of 4 wheel driven needed for adapting to wheel excavator.
In the present embodiment, oil pump assy 2 includes oil pump 21, pump gear 22, idle pulley 23 and two splines 24, and idle pulley 23 is installed
It is connect in power taking mouth 31 and with fluid torque-converter 1, pump gear 22 is mounted in power taking mouth 31 and connect with idle pulley 23, two flowers
Key 24 is arranged in pump gear 22 that one of them connect with oil pump 21, the high pressure main oil pump of another spline 24 and wheel excavator connects
It connects.In the structure, a part of torque is passed to idle pulley 23 through the driving gear on fluid torque-converter 1 by fluid torque-converter 1, lazy
Wheel 23 drives pump gear 22 again, and a spline 24 driving oil pump 21 of pump gear 22 works, and provides fluid torque-converter 1 working oil
Hydraulic oil needed for liquid, shift, cooling, lubrication；The hydraulic oil that transmission case 7 is cooling, lubrication is required.On the other hand, another is spent
Key 24 is connect with the high pressure main oil pump of wheel excavator, is the power taking mouth of the external main oil pump of minitype wheeled digging machine, the high pressure of digging machine
Main oil pump can be mounted on this power taking mouth, and the oil liquid of high pressure main oil pump output is used for the excacation of digging machine.
In the present embodiment, fluid torque-converter 1 is that non-dismountable formula structure is welded in whole punching.The torque-converters of this structure adapts to
In mass production, manufacturing cost is low, and compared with the cast type torque-converters of similar performance, cost only has 60% of the latter or so,
It is easy to carry out the quality control produced in enormous quantities.
In the utility model, the power transmission line of one grade of advance are as follows: 1 → first clutch of fluid torque-converter drum 42 → mono-
44 → second clutch of shelves gear drum, 52 → the second 55 → output gear of transmission gear, 62 → output shaft 61；The power of two grades of advance
Transfer route are as follows: 1 → the first transmission gear 45 → intermediate gear, 53 → second clutch drum 52 → the second of fluid torque-converter transmission
55 → output gear of gear, 62 → output shaft 61；The power transmission line of advance third gear are as follows: 1 → first clutch of fluid torque-converter
52 → the second 55 → output gear of transmission gear, 62 → output shaft 61 of drum 42 → third gear, 54 → second clutch drum；Reverse drive gear
Power transmission line are as follows: fluid torque-converter 1 → first clutch drum 42 → back gear, 43 → output gear, 62 → output shaft
61。
Although the utility model is disclosed as above with preferred embodiment, it is not intended to limit the utility model.It is any
Those skilled in the art, in the case where not departing from technical solutions of the utility model range, all using the disclosure above
Technology contents many possible changes and modifications are made to technical solutions of the utility model, or be revised as the equivalent of equivalent variations
Embodiment.Therefore, all contents without departing from technical solutions of the utility model, according to the utility model technical spirit to the above reality
Any simple modifications, equivalents, and modifications that example is done are applied, should all be fallen in the range of technical solutions of the utility model protection.
Claims (8)
1. a kind of hydraulic transmission gearbox for minitype wheeled digging machine, including fluid torque-converter (1), oil pump assy (2) and case
Body (3), it is characterised in that: cabinet (3) inner cavity is equipped with reverse gear group (4) interconnected, two third gear transmission groups (5)
With output transmission group (6), the fluid torque-converter (1) connect with a reverse gear group (4), is provided with and takes in the cabinet (3)
Power mouth (31), the oil pump assy (2) are installed on cabinet (3) and extend in power taking mouth (31) and formed with fluid torque-converter (1)
Connection, oil pump assy (2) are also connect by oil circuit with a reverse gear group (4) and two third gear transmission groups (5), the cabinet (3)
On be also installed with output transmission group (6) transmission case (7) that connect, the outbound course of the transmission case (7) with export transmission group
(6) outbound course is vertical.
2. the hydraulic transmission gearbox according to claim 1 for minitype wheeled digging machine, it is characterised in that: the cabinet
(3) the hydraulic oil trend for control oil pump assembly (2) is installed on to realize the control assembly (8) of gear switch.
3. the hydraulic transmission gearbox according to claim 2 for minitype wheeled digging machine, it is characterised in that: described one falls
Shelves transmission group (4) includes the first transmission shaft (41), first clutch drum (42), back gear (43) and a shelves gear (44), institute
It states the first transmission shaft (41) to connect with fluid torque-converter (1), the first clutch drum (42), back gear (43) and one grade of tooth
Wheel (44) is installed on the first transmission shaft (41) and back gear (43) and a shelves gear (44) set up separately in first clutch drum
(42) two sides, the back gear (43) connect with output transmission group (6), the first clutch drum (42) and a shelves gear
(44) it is connect with two third gear transmission groups (5).
4. the hydraulic transmission gearbox according to claim 3 for minitype wheeled digging machine, it is characterised in that: described 23
Shelves transmission group (5) includes second driving shaft (51), second clutch drum (52), intermediate gear (53), third gear (54) and the
Two transmission gears (55), the second clutch drum (52), intermediate gear (53), third gear (54) and the second transmission gear
(55) it is installed on second driving shaft (51) and intermediate gear (53) and third gear (54) sets up separately in second clutch drum (52)
Two sides, the third gear (54) connect with first clutch drum (42), the second clutch drum (52) and a shelves gear
(44) it connects, second transmission gear (55) connect with output transmission group (6), is also installed on first transmission shaft (41)
First transmission gear (45), the intermediate gear (53) connect with the first transmission gear (45).
5. the hydraulic transmission gearbox according to claim 4 for minitype wheeled digging machine, it is characterised in that: the output
Transmission group (6) includes output shaft (61) and the output gear (62) being installed on output shaft (61), the output gear (62) with
Second transmission gear (55) connection.
6. being used for the hydraulic transmission gearbox of minitype wheeled digging machine according to any one of claim 2 to 5, feature exists
It include that box shell (71) sets within it drive bevel gear (72), driven wheel of differential (73) and the transmission of chamber in: the transmission case (7)
Output shaft (74), the box shell (71) and cabinet (3) are tightly connected, and the drive bevel gear (72) and output transmission group (6) are even
It connects, the transmission output shaft (74) is connect by driven wheel of differential (73) with drive bevel gear (72), the transmission output shaft
(74) output end is connected with output flange (75).
7. being used for the hydraulic transmission gearbox of minitype wheeled digging machine according to any one of claim 2 to 5, feature exists
In: the oil pump assy (2) includes oil pump (21), pump gear (22), idle pulley (23) and two splines (24), the idle pulley (23)
Be mounted in power taking mouth (31) and connect with fluid torque-converter (1), the pump gear (22) be mounted on power taking mouth (31) it is interior and with
Idle pulley (23) connection, two splines (24) are arranged in pump gear (22) one of spline (24) and connect with oil pump (21), is another
One spline (24) connect with the high pressure main oil pump of wheel excavator.
8. the hydraulic transmission gearbox according to claim 6 for minitype wheeled digging machine, it is characterised in that: the oil pump
Assembly (2) includes oil pump (21), pump gear (22), idle pulley (23) and two splines (24), and the idle pulley (23) is mounted on power taking
It is connect in mouth (31) and with fluid torque-converter (1), the pump gear (22) is mounted in power taking mouth (31) and connects with idle pulley (23)
Connect, two splines (24) be arranged in pump gear (22) one of splines (24) connect with oil pump (21), another spline
(24) it is connect with the high pressure main oil pump of wheel excavator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821101056.6U CN208487168U (en) | 2018-07-12 | 2018-07-12 | Hydraulic transmission gearbox for minitype wheeled digging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821101056.6U CN208487168U (en) | 2018-07-12 | 2018-07-12 | Hydraulic transmission gearbox for minitype wheeled digging machine |
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| Publication Number | Publication Date |
|---|---|
| CN208487168U true CN208487168U (en) | 2019-02-12 |
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ID=65246131
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821101056.6U Active CN208487168U (en) | 2018-07-12 | 2018-07-12 | Hydraulic transmission gearbox for minitype wheeled digging machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN208487168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288139A (en) * | 2020-02-24 | 2020-06-16 | 山东临工工程机械有限公司 | Planetary gearbox assembly |
-
2018
- 2018-07-12 CN CN201821101056.6U patent/CN208487168U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288139A (en) * | 2020-02-24 | 2020-06-16 | 山东临工工程机械有限公司 | Planetary gearbox assembly |
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