CN105156602A - Multi-functional postpositional transfer case with three output shafts - Google Patents
Multi-functional postpositional transfer case with three output shafts Download PDFInfo
- Publication number
- CN105156602A CN105156602A CN201510546695.8A CN201510546695A CN105156602A CN 105156602 A CN105156602 A CN 105156602A CN 201510546695 A CN201510546695 A CN 201510546695A CN 105156602 A CN105156602 A CN 105156602A
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- Prior art keywords
- gear
- transfer case
- output shaft
- shaft
- putting
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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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/091—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears including a single countershaft
- F16H3/0915—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears including a single countershaft with coaxial input and output shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2306/00—Shifting
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a multi-functional postpositional transfer case with three output shafts. The postpositional transfer case comprises a gearbox, a transfer case arranged at the front end of the gearbox, and a clutch arranged at the rear end of the gearbox, wherein an input shaft is fixedly mounted in the gearbox; two ends of the input shaft respectively extend into the clutch and the transfer case; the transfer case comprises a transfer case casing, a first output shaft, a second output shaft, a middle shaft and a third output shaft; a first gear is arranged on the input shaft; a second gear is in meshed connection with the first gear; a third gear is arranged on the middle shaft; the third gear is in meshed connection with the second gear; the input shaft and the first output shaft are arranged coaxially; the second output shaft, the middle shaft and the third output shaft are sequentially arranged coaxially; shifting gear sleeves are respectively connected to the first output shaft, the second output shaft and the third output shaft; corresponding external splines are arranged on the first gear and the third gear respectively; shifting devices are respectively connected to the shifting gear sleeves. The multi-functional postpositional transfer case disclosed by the invention is simple in structure and convenient to maintain, and can independently supply multiple power outputs.
Description
Technical field
The present invention relates to a kind of speed change gear, particularly relate to a kind of multi-functional three and export rear transfer case.
Background technique
Existing rear-mounted transfer case exists speed ratio to be fixed, cannot change, assembling is complicated, maintenance is inconvenient, and take up room large defect, and transfer case generally additionally can only export a power, more Power output cannot be provided, arbitrarily can not carry out putting into gear gear shift operation simultaneously, all can not put into gear when travelling and stop and carry out transfer output, demand widely can not be met.
Summary of the invention
A kind of multi-functional three are the object of the present invention is to provide to export rear transfer case, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technological scheme: a kind of multi-functional three export rear transfer case, the clutch comprising gearbox, be arranged on the transfer case of gearbox rear end, be arranged on gearbox front end;
Described gearbox comprises gear box casing and input shaft, and described input shaft is fixedly mounted in gear box casing, and one end of described input shaft to be stretched in transfer case and is arranged with the first gear, and the other end of described input shaft stretches into clutch;
Described transfer case comprises transfer case housing, the first output shaft, the second output shaft, jack shaft, the 3rd output shaft, described first output shaft and input shaft are coaxially arranged in transfer case housing, described first output shaft one end adjacent with input shaft is set with first by external splines and puts into gear tooth cover, and one end that described first gear is adjacent with the first output shaft is provided with tooth of putting into gear with described first and overlaps corresponding external splines, described first gears meshing is connected with the second gear, described second gears meshing is connected with the 3rd gear, described 3rd geared sleeve is located on described jack shaft, described second output shaft, jack shaft and the 3rd output shaft are coaxially arranged in transfer case housing successively, described second output shaft one end adjacent with jack shaft is set with second by external splines and puts into gear tooth cover, one end that described jack shaft is adjacent with the second output shaft is provided with tooth of putting into gear with second and overlaps corresponding external splines, described 3rd output shaft one end adjacent with jack shaft is equipped with the 3rd by spline housing and is put into gear tooth cover, one end that described jack shaft is adjacent with the second output shaft is provided with tooth of putting into gear with the 3rd and overlaps corresponding external splines, described first tooth cover, second tooth cover, the 3rd tooth cover outer surface of putting into gear of putting into gear of putting into gear is provided with fork slot, and the described first tooth cover second tooth cover, the 3rd tooth cover of putting into gear of putting into gear of putting into gear is connected to gearshift.
In technique scheme, the piston rod that described gearshift comprises cylinder and coordinates with cylinder, one end that described piston rod stretches out cylinder is provided with shift fork, the other end of described shift fork inserts corresponding fork slot, one end that described piston rod is positioned at cylinder is provided with Returnning spring, cylinder rodless cavity is provided with suction port.
In technique scheme, described gearshift is anchoring.
In technique scheme, described transfer case housing is dismountable is arranged on gear box casing rear end.
In technique scheme, described transfer case housing and described transmission housing body by integral forming.
Technique effect of the present invention with advantage is: the present invention is by arranging the second output shaft and the 3rd output shaft of the coaxial setting parallel with input shaft, and the first output shaft coaxially to arrange with input shaft, totally three output shafts obtain power from input shaft respectively, each input shaft all can work independently, and also can accomplish that bull exports simultaneously; Simplify redundant structure, be not only convenient to production and processing, after decreasing number of spare parts, the also maximized volume decreasing whole transfer case, is accomplishing, under the condition that bull exports, to decrease occupying upper beam space, and greatly reduce cost of production simultaneously; Present invention overcomes general transmission gear ratio can not change, can only the defect of the supporting a kind of vehicle of a kind of speed ratio, speed ratio can be changed for different situations, adapt to the use under various condition; Adopt the design that transfer case is rearmounted, not only transmitting torque is large, nor easy generation with miscellaneous part is conflicted; By putting into gear, tooth cover transmits outputting power to three output shafts, operation of putting into gear is carried out by the gearshift such as anchoring or Pneumatic actuator, not only gearshift is steadily quick, do not affect by engine speed, and output power is unaffected, loss during power stage is little, and all can power taking export when still stopping regardless of vehicle operating, using scope is more wide, can be used for the speed change power taking of four-wheel drive vehicle, transfer is to vehicle front-rear axle respectively, ensures power character and the passing ability of vehicle, decreases vehicle oil consumption simultaneously; Centered by input shaft axis, also multiple transfer case can be set in gearbox rear end, each transfer case all obtains power from input shaft, thus accomplish multiple double end output shaft outputting power, obtain more component to meet user demand widely, transfer case case both dismountablely can be installed in gearbox rear portion simultaneously, convenient installation and repairing, and can during fabrication by transfer case case with transmission case is one-body molded is made into an entirety, strengthen the mechanical strength of whole transfer device, meet operation and the use of high strength.In sum, structure of the present invention is simple, volume is little, easy to use, cost is low, it is adjustable to export speed ratio, and output power is large, bull outputting power can be accomplished, of many uses, being suitable for the use of any vehicle, is the power takeoff of a kind of worth large-scale popularization and use.
Accompanying drawing explanation
Fig. 1 is the sectional view of the embodiment of the present invention 1;
Fig. 2 is the sectional view of the embodiment of the present invention 2;
The drawing reference numeral of embodiment illustrates:
1, gearbox; 2, transfer case; 3, clutch; 4, gear box casing;
5, input shaft; 6, the first gear; 7, transfer case housing;
8, the first output shaft; 9, the second output shaft; 10, jack shaft;
11, the 3rd output shaft; 12, the second gear; 13, the 3rd gear;
14, first to put into gear tooth cover; 15, second to put into gear tooth cover;
16, the 3rd to put into gear tooth cover; 17, cylinder; 18, piston rod;
19, shift fork; 20, Returnning spring; 21, suction port.
Embodiment
For ease of better understanding object of the present invention, structure, feature and effect etc., existing the present invention is described in further detail with specific embodiment by reference to the accompanying drawings.
Embodiment 1
Multi-functional three in the present invention export rear transfer case, the clutch 3 as shown in Figure 1, comprising gearbox 1, be arranged on the transfer case 2 of gearbox 1 rear end, be arranged on gearbox 1 front end;
Gearbox 1 comprises gear box casing 4 and input shaft 5, and input shaft 5 is fixedly mounted in gear box casing 4, and one end of input shaft 5 to be stretched in transfer case 2 and is arranged with the first gear 6, and the other end of input shaft 5 stretches into clutch 3;
Transfer case 2 comprises transfer case housing 7, first output shaft 8, second output shaft 9, jack shaft 10, the 3rd output shaft 11, first output shaft 8 and input shaft 5 are coaxially arranged in transfer case housing 7, first output shaft 8 one end adjacent with input shaft 5 is set with the first tooth of putting into gear by external splines and overlaps the 14, first gear 6 one end adjacent with the first output shaft 8 and be provided with tooth of putting into gear with first and overlap 14 corresponding external spliness, first gear 6 has been connected with a joggle the second gear 12, second gears meshing is connected with the 3rd gear 13, 3rd gear 13 is set on jack shaft 10, second output shaft 9, jack shaft 10 and the 3rd output shaft 11 are coaxially arranged in transfer case housing 7 successively, second output shaft 9 one end adjacent with jack shaft 10 is set with the second tooth of putting into gear by external splines and overlaps 15, one end that jack shaft 10 is adjacent with the second output shaft 9 is provided with tooth of putting into gear with second and overlaps 15 corresponding external spliness, 3rd output shaft 11 one end adjacent with jack shaft 10 is equipped with the 3rd tooth of putting into gear by spline housing and is overlapped 16, one end that jack shaft 10 is adjacent with the second output shaft 9 is provided with tooth of putting into gear with the 3rd and overlaps 16 corresponding external spliness, first tooth cover 14, second tooth cover the 15, the 3rd tooth of putting into gear of putting into gear of putting into gear overlaps 16 outer surfaces and is provided with fork slot, and the first tooth cover 14, second tooth cover the 15, the 3rd tooth cover 16 of putting into gear of putting into gear of putting into gear is connected to gearshift, the piston rod 18 that gearshift comprises cylinder 17 and coordinates with cylinder, one end that piston rod 18 stretches out cylinder is provided with shift fork 19, the other end of shift fork 19 inserts corresponding fork slot, one end that piston rod 18 is positioned at cylinder is provided with Returnning spring 20, cylinder rodless cavity is provided with suction port 21.Transfer case housing 6 is mounted by means of bolts on gear box casing 4 rear end.
Working principle of the present invention is: power is sent to the first gear 6 by input shaft 5 successively, the second gear 12 be connected with a joggle with the first gear 6, the 3rd gear 13 be connected with a joggle with the second gear 12, the work of three output shafts is controlled subsequently: when needs second output shaft 9 works by gearshift, pressurized air is passed into suction port 21, promote piston rod 18 to move vertically, thus drive shift fork 19 to move, shift fork 19 drives the second tooth cover of putting into gear 15 to move axially, make second put into gear tooth cover 15 and second output shaft 9 by while spline joint, also the with three gear 13 passes through spline joint, thus power is sent to the second output shaft 9 outputting power from the 3rd gear 13, after stopping passes into pressurized air, Returnning spring 20 promotes piston rod 18 and resets, shift fork 19 is driven to move, shift fork 19 drives the second tooth of putting into gear to overlap 15 returns, second tooth cover 15 of putting into gear to depart from the 3rd gear 13 and is connected, stop outputting power.Control the first tooth cover 14, second tooth cover the 15, the 3rd tooth cover 16 of putting into gear of putting into gear of putting into gear respectively by corresponding gearshift to accomplish to control the first output shaft 8, second output shaft 9 respectively and the 3rd output shaft 11 exports respectively and stops outputting power.
Embodiment 2
Multi-functional three in the present invention export rear transfer case, the clutch 3 as shown in Figure 2, comprising gearbox 1, be arranged on the transfer case 2 of gearbox 1 rear end, be arranged on gearbox 1 front end;
Gearbox 1 comprises gear box casing 4 and input shaft 5, and input shaft 5 is fixedly mounted in gear box casing 4, and one end of input shaft 5 to be stretched in transfer case 2 and is arranged with the first gear 6, and the other end of input shaft 5 stretches into clutch 3;
Transfer case 2 comprises transfer case housing 7, first output shaft 8, second output shaft 9, jack shaft 10, the 3rd output shaft 11, first output shaft 8 and input shaft 5 are coaxially arranged in transfer case housing 7, first output shaft 8 one end adjacent with input shaft 5 is set with the first tooth of putting into gear by external splines and overlaps the 14, first gear 6 one end adjacent with the first output shaft 8 and be provided with tooth of putting into gear with first and overlap 14 corresponding external spliness, first gear 6 has been connected with a joggle the second gear 12, second gear 12 has been connected with a joggle the 3rd gear 13, 3rd gear 13 is set on jack shaft 10, second output shaft 9, jack shaft 10 and the 3rd output shaft 11 are coaxially arranged in transfer case housing 7 successively, second output shaft 9 one end adjacent with jack shaft 10 is set with the second tooth of putting into gear by external splines and overlaps 15, one end that jack shaft 10 is adjacent with the second output shaft 9 is provided with tooth of putting into gear with second and overlaps 15 corresponding external spliness, 3rd output shaft 11 one end adjacent with jack shaft 10 is equipped with the 3rd tooth of putting into gear by spline housing and is overlapped 16, one end that jack shaft 10 is adjacent with the second output shaft 9 is provided with tooth of putting into gear with the 3rd and overlaps 16 corresponding external spliness, first tooth cover 14, second tooth cover the 15, the 3rd tooth of putting into gear of putting into gear of putting into gear overlaps 16 outer surfaces and is provided with fork slot, and the first tooth cover 14, second tooth cover the 15, the 3rd tooth cover 16 of putting into gear of putting into gear of putting into gear is connected to gearshift, gearshift is anchoring.Transfer case housing 6 is mounted by means of bolts on gear box casing 4 rear end.
Working principle of the present invention is: power is sent to the first gear 6 by input shaft 5 successively, the second gear 12 be connected with a joggle with the first gear 6, the 3rd gear 13 be connected with a joggle with the second gear 12, the work of three output shafts is controlled subsequently: when needs second output shaft 9 works by gearshift, shift fork 19 is driven to move by anchoring, shift fork 19 drives the second tooth cover of putting into gear 15 to move axially, make second put into gear tooth cover 15 and second output shaft 9 by while spline joint, also the with three gear 13 passes through spline joint, thus power is sent to the second output shaft 9 from the 3rd gear 13, outputting power, when needs stop outputting power, drive shift fork 19 return by anchoring, the second put into gear tooth cover 15 and the 3rd gear 13 is departed from, and the second output shaft 9 stops outputting power, control the first tooth cover 14, second tooth cover the 15, the 3rd tooth cover 16 of putting into gear of putting into gear of putting into gear respectively by corresponding gearshift to accomplish to control the first output shaft 8, second output shaft 9 respectively and the 3rd output shaft 11 exports respectively and stops outputting power.
Last it is noted that the foregoing is only the preferred embodiments of the present invention; be not limited to the present invention; although with reference to previous embodiment to invention has been detailed description; for a person skilled in the art; it still can be modified to the technological scheme described in foregoing embodiments; or equivalent replacement is carried out to wherein portion of techniques feature; within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. multi-functional three export a rear transfer case, it is characterized in that: the clutch (3) comprising gearbox (1), be arranged on the transfer case (2) of gearbox (1) rear end, be arranged on gearbox (1) front end;
Described gearbox (1) comprises gear box casing (4) and input shaft (5), described input shaft (5) is fixedly mounted in gear box casing (4), one end of described input shaft (5) to be stretched in transfer case (2) and is arranged with the first gear (6), and the other end of described input shaft (5) stretches into clutch (3);
Described transfer case (2) comprises transfer case housing (7), the first output shaft (8), the second output shaft (9), jack shaft (10), the 3rd output shaft (11), described first output shaft (8) and input shaft (5) are coaxially arranged in transfer case housing (7), described first output shaft (8) one end adjacent with input shaft (5) is set with first by external splines and puts into gear tooth cover (14), and described first gear (6) one end adjacent with the first output shaft (8) is provided with the corresponding external splines of tooth cover (14) of putting into gear with described first, described first gear (6) has been connected with a joggle the second gear (12), described second gears meshing is connected with the 3rd gear (13), described 3rd gear (13) is set on described jack shaft (10), described second output shaft (9), jack shaft (10) and the 3rd output shaft (11) are coaxially arranged in transfer case housing (7) successively, described second output shaft (9) one end adjacent with jack shaft (10) is set with second by external splines and puts into gear tooth cover (15), one end that described jack shaft (10) is adjacent with the second output shaft (9) is provided with the corresponding external splines of tooth cover (15) of putting into gear with second, described 3rd output shaft (11) one end adjacent with jack shaft (10) is equipped with the 3rd by spline housing and is put into gear tooth cover (16), one end that described jack shaft (10) is adjacent with the second output shaft (9) is provided with the corresponding external splines of tooth cover (16) of putting into gear with the 3rd, described first tooth cover (14), second tooth cover (15), the 3rd tooth cover (16) outer surface of putting into gear of putting into gear of putting into gear is provided with fork slot, and the described first tooth cover (14), second tooth cover (15), the 3rd tooth cover (16) of putting into gear of putting into gear of putting into gear is connected to gearshift.
2. multi-functional three according to claim 1 export rear transfer case, it is characterized in that: the piston rod (18) that described gearshift comprises cylinder (17) and coordinates with cylinder, one end that described piston rod (18) stretches out cylinder is provided with shift fork (19), the other end of described shift fork (19) inserts corresponding fork slot, one end that described piston rod (18) is positioned at cylinder is provided with Returnning spring (20), cylinder rodless cavity is provided with suction port (21).
3. Multifunction parallel double end dual output rear transfer case according to claim 1, is characterized in that: described gearshift is anchoring.
4. multi-functional three according to any one of claim 1-3 export rear transfer case, it is characterized in that: described transfer case housing (7) is dismountable is arranged on gear box casing (4) rear end.
5. multi-functional three according to any one of claim 1-3 export rear transfer case, it is characterized in that: described transfer case housing (7) is one-body molded with described gear box casing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510546695.8A CN105156602A (en) | 2015-08-28 | 2015-08-28 | Multi-functional postpositional transfer case with three output shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510546695.8A CN105156602A (en) | 2015-08-28 | 2015-08-28 | Multi-functional postpositional transfer case with three output shafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105156602A true CN105156602A (en) | 2015-12-16 |
Family
ID=54797575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510546695.8A Pending CN105156602A (en) | 2015-08-28 | 2015-08-28 | Multi-functional postpositional transfer case with three output shafts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105156602A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757188A (en) * | 2016-05-05 | 2016-07-13 | 云梦县取力器厂 | Multifunctional output gearbox |
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|---|---|---|---|---|
| CN1948789A (en) * | 2006-11-08 | 2007-04-18 | 贵州凯星液力传动机械有限公司 | Large distance drop transfer case |
| CN201078439Y (en) * | 2007-08-27 | 2008-06-25 | 王巧扣 | Force adopting equipment with adjustable speed ratio |
| CN201410994Y (en) * | 2008-11-10 | 2010-02-24 | 泰安航天特种车有限公司 | Automobile special for workover rig in oil field |
| CN201566484U (en) * | 2009-11-03 | 2010-09-01 | 三江瓦力特特种车辆有限公司 | Vehicular full-power multi-output transmission device of transfer case |
| CN101922447A (en) * | 2010-09-30 | 2010-12-22 | 无锡英特帕普威孚液压有限责任公司 | Multi-head hydraulic pump testing device |
| CN201808454U (en) * | 2010-09-30 | 2011-04-27 | 无锡英特帕普威孚液压有限责任公司 | Hydrostatic transmission case |
| CN204186889U (en) * | 2014-10-20 | 2015-03-04 | 福建尚锟齿轮箱制造有限公司 | Front and back drive the rear transfer case of independent separate |
| CN205036799U (en) * | 2015-08-28 | 2016-02-17 | 云梦县取力器厂 | Three multi -functional rearmounted transfer cases of output |
-
2015
- 2015-08-28 CN CN201510546695.8A patent/CN105156602A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1948789A (en) * | 2006-11-08 | 2007-04-18 | 贵州凯星液力传动机械有限公司 | Large distance drop transfer case |
| CN201078439Y (en) * | 2007-08-27 | 2008-06-25 | 王巧扣 | Force adopting equipment with adjustable speed ratio |
| CN201410994Y (en) * | 2008-11-10 | 2010-02-24 | 泰安航天特种车有限公司 | Automobile special for workover rig in oil field |
| CN201566484U (en) * | 2009-11-03 | 2010-09-01 | 三江瓦力特特种车辆有限公司 | Vehicular full-power multi-output transmission device of transfer case |
| CN101922447A (en) * | 2010-09-30 | 2010-12-22 | 无锡英特帕普威孚液压有限责任公司 | Multi-head hydraulic pump testing device |
| CN201808454U (en) * | 2010-09-30 | 2011-04-27 | 无锡英特帕普威孚液压有限责任公司 | Hydrostatic transmission case |
| CN204186889U (en) * | 2014-10-20 | 2015-03-04 | 福建尚锟齿轮箱制造有限公司 | Front and back drive the rear transfer case of independent separate |
| CN205036799U (en) * | 2015-08-28 | 2016-02-17 | 云梦县取力器厂 | Three multi -functional rearmounted transfer cases of output |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757188A (en) * | 2016-05-05 | 2016-07-13 | 云梦县取力器厂 | Multifunctional output gearbox |
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Application publication date: 20151216 |