CN201882864U - Full hydraulic transmission forklift driven by double static-pressure motors - Google Patents
Full hydraulic transmission forklift driven by double static-pressure motors Download PDFInfo
- Publication number
- CN201882864U CN201882864U CN2010201967438U CN201020196743U CN201882864U CN 201882864 U CN201882864 U CN 201882864U CN 2010201967438 U CN2010201967438 U CN 2010201967438U CN 201020196743 U CN201020196743 U CN 201020196743U CN 201882864 U CN201882864 U CN 201882864U
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- pressure system
- drive
- efficiency pressure
- hydraulic efficiency
- 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 - Lifetime
Links
Images
Landscapes
- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model provides a full hydraulic transmission forklift driven by double static-pressure motors, comprising a rear counter weight, a steering axle, a protective frame, an engine, an engine cover, a drive axle, a gantry and a storage rack which are arranged on a rack, and a drive control hydraulic system, a hydraulic system and two static-pressure motors are arranged on the rack. The full hydraulic transmission forklift driven by double static-pressure motors is characterized in that the drive axle is in a splitting type, one end of each split drive axle is connected with wheels, and the other end of the split drive axle is connected with the static-pressure motors, so that the wheels are driven directly by the two static-pressure motors, two static-pressure motors are connected with the drive control hydraulic system which is connected with the hydraulic system which is connected with the engine. In the full hydraulic transmission forklift, two static-pressure motors are adopted to drive the wheels to rotate directly, a complex middle power transmission mechanism is removed, the transmission efficiency is improved, the material consumption is reduced, and the operating and maintaining properties of the forklift are improved.
Description
Technical field
The utility model relates to the fork truck technical field, specifically a kind of all-hydraulic transmission counterbalanced lift truck that adopts double static pressure motor to drive.
Background technology
At present, the counterbalanced lift truck product of mass selling on the market, drive part are explosive motor and by power-transfer clutch or turbine transformer transmission of power are arrived change speed gear box, pass to semiaxis through main reduction gear, diff again, the drive wheels rotation.This mechanical type driving system exists complex structure, and speed ratio is fixed, and costs an arm and a leg fault pilosity, operating noise height, the shortcoming that labour intensity is big.Can keep in repair after must dismantling driving engine, change speed gear box, drive axle after driving system breaks down.
The utility model content
The purpose of this utility model is to improve the deficiencies in the prior art, provides a kind of simple in structure, easy and simple to handle, easy to repair, can realize the full hydraulic driving forklift that infinite variable speed double static pressure motor drives.
For achieving the above object, the utility model is taked following technical scheme:
The fork truck of the all-hydraulic transmission that a kind of double static pressure motor drives, it includes back counterweight, steeraxle, overhead guard, driving engine, bonnet, drive axle, door frame, shelf and hydraulic efficiency pressure system, described each parts are arranged on the frame, also are provided with drive controlling hydraulic efficiency pressure system and two hydrostatic machines on this frame; Described drive axle is split type, each divides an end of drive axle to connect wheel, the other end connects a described hydrostatic machine, two these hydrostatic machines connect described drive controlling hydraulic efficiency pressure system, described drive controlling hydraulic efficiency pressure system connects described hydraulic efficiency pressure system, described hydraulic efficiency pressure system connects described driving engine, and described hydraulic efficiency pressure system provides power by described driving engine.
Hydrostatic machine wherein is the abbreviation of static pressure CD-ROM drive motor.
The settings of parts on frame such as back counterweight, steeraxle, overhead guard, driving engine, bonnet, drive axle, door frame, shelf and hydraulic efficiency pressure system on the described fork truck are identical with fork truck of the prior art with mutual connection structure.
The connection structure of above-mentioned hydrostatic machine and described minute drive axle can be: drive axle comprised an axle tube in described minute, one drive wheel semiaxis is set in this axle tube, one end of this drive wheel semiaxis connects the wheel hub of wheel, described hydrostatic machine and axle tube connect firmly, and the output shaft of described hydrostatic machine connects firmly by a coupler and described drive wheel semiaxis.
Can on the casing of hydrostatic machine and described axle tube, flange be set, tie bolt on two flanges, tie bolt on two flanges, hydrostatic machine is bolted on the axle tube of drive axle with flange.
Particularly, one motor positioning step can be set on the output shaft of described hydrostatic machine, one endoporus step is set in the mouth of pipe of described axle tube, on this endoporus step against an end that sets firmly a bearing, at the other end of this bearing against an end that sets firmly a spacer, motor positioning step on the described hydrostatic machine is against the other end that is installed in this spacer, on this bearing cone, set firmly gear coupling in, the coupling end setting of described drive wheel semiaxis and hydrostatic machine output shaft and described in the external tooth of gear coupling coupling, be plugged in this and be connected and fixed in gear coupling.
Described bearing also can be self-aligning ball bearing for being deep groove ball bearing, perhaps is self-aligning roller bearing.
Connect wheel on this wheel nave, wheel nave is provided with braking mechanism same as the prior art.
Described hydraulic efficiency pressure system is included in the Hydraulic Elements and the Hydraulic Pump of all fuel feeding such as mechanism that turn to lifting, leaning device and control steeraxles such as the described door frame of control, shelf in the existing fork truck, and its connection structure is a prior art.
Hydraulic Pump in this hydraulic efficiency pressure system is a volume adjustable hydraulic pump, and it is connected with described driving engine, and this connection structure is a prior art.Volume adjustable hydraulic pump in this hydraulic efficiency pressure system is connected with described drive controlling hydraulic efficiency pressure system by hydraulic tubing, and this drive controlling hydraulic efficiency pressure system is connected with two described hydrostatic machines.
Described controllable capacity pump is an autonomous type plunger variable Hydraulic Pump.
The rotating speed of above-mentioned hydrostatic machine, rotation direction, stop to control by the drive controlling hydraulic efficiency pressure system, with the stepless change of realizing fork truck, forward-reverse and about turn to.
Described drive controlling hydraulic efficiency pressure system comprises two groups of check valves, a change-over valve and a Das Gaspedal, two groups of check valves are connected with two described hydrostatic machines respectively, described change-over valve is connected with two groups of these check valves, this change-over valve connects the volume adjustable hydraulic pump in the described hydraulic efficiency pressure system, then connect described driving engine, described Das Gaspedal connects described driving engine; A hydraulic steering gear that comprises in the described hydraulic efficiency pressure system, it connects and composes two every group by control oil pipe and two groups of described check valves and turns to hydraulic control one-way valve to be connected with described hydrostatic machine with two oil return hydraulic control one-way valves cooperations, this hydraulic steering gear connects hydraulic efficiency gear on the described steeraxle by oil pipe simultaneously, and this is a prior art.
Described change-over valve can be manual two position and four-way reversing valves.Be connected with the manual lever of fork truck in the use, regulate change-over valve, realize the conversion that moves forward and backward of fork truck by control lever.
Described drive axle is split type, and each divides an end of drive axle to connect wheel, and the other end connects a described hydrostatic machine, makes described wheel by these two hydrostatic machine direct drives.
The output shaft of described hydrostatic machine connects firmly by a coupler and described drive wheel semiaxis, makes the output shaft of described hydrostatic machine directly moment of torsion be passed to the drive wheel semiaxis by described coupler, the drive wheels rotation.
Tie bolt on two flanges, tie bolt on two flanges, hydrostatic machine are bolted to flange on the axle tube of drive axle hydrostatic machine are bolted on the axle tube of drive axle with flange.
This drive controlling hydraulic efficiency pressure system is connected with two described hydrostatic machines, makes the controllable capacity pump fuel feeding that above-mentioned hydrostatic machine is driven by driving engine, and described controllable capacity pump can be an autonomous type plunger variable Hydraulic Pump.This controllable capacity pump is hydraulic efficiency pressure system lifting, the power element fuel feeding that tilts, turn to simultaneously.
Described hydraulic steering gear is connected the diff that then substitutes existing fork truck and realizes this fork-truck steering under the drive of steeraxle with the drive controlling hydraulic efficiency pressure system.
The beneficial effects of the utility model are:
1, the fork truck of the all-hydraulic transmission of this double static pressure motor driving is compared with the hydraulic transmission fork truck with traditional machinery, full hydraulic driving forklift need not to install complicated drivings device such as power-transfer clutch, change speed gear box, main reduction gear, diff, has advantage simple in structure, easy and simple to handle, for ease of maintenaince.
2, this full hydraulic driving forklift has been removed the intermediate transfer link of moment substantially, the driving efficiency height, and loss in efficiency is little, helps improving efficiency of energy utilization.
3, this full hydraulic driving forklift has been stopped the noise that the machine driven system gear mesh produces, and the complete machine noise obviously descends, and helps improving working environment, and the protection operator's is healthy.
Description of drawings
Fig. 1 is the structural representation of the fork truck of the all-hydraulic transmission that drives of the double static pressure motor that provides of the utility model.
Fig. 2 is the transmission principle scheme drawing of the fork truck of the all-hydraulic transmission that drives of the double static pressure motor that provides of the utility model.
Fig. 3 is the drive controlling hydraulic efficiency pressure system part control principle scheme drawing of of the present utility model full hydraulic driving forklift.
Fig. 4 is the sectional structure scheme drawing of drive part of the present utility model.
Fig. 5 is the main TV structure scheme drawing of axle tube in the drive part of the present utility model.
Fig. 6 is the left TV structure scheme drawing of Fig. 5.
Fig. 7 is the main TV structure scheme drawing of interior gear coupling in the drive part of the present utility model.
Fig. 8 is the left TV structure scheme drawing of Fig. 7.
The specific embodiment
Referring to Fig. 1～shown in Figure 7: the full hydraulic driving forklift that a kind of double static pressure motor drives, it includes back counterweight 1, steeraxle 2, overhead guard 3, driving engine 4, frame 5, bonnet 6, drive axle 7, door frame 8, shelf 9, hydraulic efficiency pressure system 11, described each parts are set on frame 5, except that drive axle 7, the miscellaneous part of described fork truck is identical with common fork truck.
On this frame, also be provided with a drive controlling hydraulic efficiency pressure system 10, two hydrostatic machines 13, described drive axle is split type, each divides an end of drive axle 7 to connect the wheel (not shown), the other end connects a described hydrostatic machine 13, make described wheel by these two hydrostatic machine 13 direct drives, two these hydrostatic machines 13 connect described drive controlling hydraulic efficiency pressure system 10, and described drive controlling hydraulic efficiency pressure system 10 connects described hydraulic efficiency pressure system 11, and described hydraulic efficiency pressure system 11 connects described driving engine 4.
The utility model promptly be original fork truck be used for pick out a hydraulic circuit to hydraulic efficiency pressure system 11 such as the lifting of door frame 8, steeraxle 2 etc., the power element fuel feeding that tilts, turn to, form a drive controlling hydraulic efficiency pressure system 10, replace original by driving engine 4 to mechanical transmission mechanisms such as the power-transfer clutch the wheel, change speed gear box, main reduction gear, difies.
Above-mentioned drive controlling hydraulic efficiency pressure system 10 by two four-way hand change over valves 24, four oil return hydraulic control one-way valves 25, four turn to hydraulic control one-way valve 26 and Das Gaspedal 27 to form, with moving velocity, the forward-reverse of control fork truck with turn to.
Concrete structure in existing hydraulic efficiency pressure system 11, comprises a volume adjustable hydraulic pump 12 referring to Fig. 2, and it is connected with driving engine 4, and this connection structure is a prior art.This volume adjustable hydraulic pump 12 is connected with fluid control part 28 of the prior art, simultaneously, this hydraulic efficiency pressure system is connected with described drive controlling hydraulic efficiency pressure system 10 by hydraulic tubing, this drive controlling hydraulic efficiency pressure system 10 is connected with two hydrostatic machines 13, make controllable capacity pump 12 fuel feeding that above-mentioned hydrostatic machine 13 is driven by driving engine 4, controllable capacity pump 12 is autonomous type plunger variable Hydraulic Pumps.
As shown in Figure 3, described drive controlling hydraulic efficiency pressure system comprises two groups of check valves, a change-over valve 24 and a Das Gaspedal 27, two groups of check valves are connected with two hydrostatic machines 13 respectively, change-over valve 24 is connected with two groups of these check valves, the volume adjustable hydraulic pump 12 that change-over valve 24 connects in the hydraulic efficiency pressure system 11, then connect described driving engine 4, Das Gaspedal 27 connects driving engine 4; A hydraulic steering gear 23 that comprises in the hydraulic efficiency pressure system 11, it connects and composes two every group by control oil pipe 23a with two groups of described check valves and turns to hydraulic control one-way valve 26 to cooperate with two oil return hydraulic control one-way valves 25, be connected with hydrostatic machine 13, this hydraulic steering gear 23 connects hydraulic efficiency gear (not shown) on the described steeraxle 2 by oil pipe simultaneously.
Change-over valve 24 can be manual two position and four-way reversing valves, and manual handle 10a wherein is arranged in the operator's compartment, regulates change-over valve by control lever 10a, realizes the conversion that moves forward and backward of fork truck.
And described hydraulic steering gear 23, just have in the hydraulic efficiency pressure system 11 on original fork truck, it is to be used to control the hydraulic actuating cylinder that fork truck rear wheel steeraxle 2 turns to, in the present embodiment, be on this hydraulic steering gear 23, to pick out control oil pipe 23a, be connected to turning on the hydraulic control one-way valve 26 in two groups of described check valves, this hydraulic steering gear 23 still can be manually to control by the direction rotating disk 11a in the operator's compartment.Rotate this hydraulic steering gear 23, its oil outlet pipe has pressure oil and flows out, pressure will pass to the Long-distance Control mouth that turns to hydraulic control one-way valve in one group of check valve of a side by control oil pipe 23a, it is coupler lock that in the work this turns to hydraulic control one-way valve, and the also locking simultaneously of corresponding oil return hydraulic control one-way valve, this side hydrostatic machine quits work, and turn to hydraulic control one-way valve and oil return hydraulic control one-way valve non-latching in one group of check valve of opposite side, this side hydrostatic machine works on, at this moment, hydraulic steering gear 23 ground as prior art is controlled for the steeraxle 2 of a corresponding side simultaneously, makes this fork truck realize turning under the drive of steeraxle 2.
Above-mentioned fork truck, when Das Gaspedal is stepped on diverse location 27 times, driving engine 4 drives the different flow of controllable capacity pump 12 outputs with different rotating speeds and gives hydrostatic machine 13, realizes the stepless change of fork truck.The manual handle 10a that is provided with in the operator's compartment by the overhead guard formation handles the handle of two four-way hand change over valves 24, and hydraulic oil enters two hydrostatic machines 13 from different hydraulic fluid ports, realizes moving forward and backward of fork truck.Rotate the direction rotating disk 11a of hydraulic steering gear 23, a side turns to hydraulic control one-way valve 26 to accept the hydraulic pressure command SELF CL that the Long-distance Control oral instructions come, and left and right sides hydrostatic machine 13 1 side work one side is static, and fork truck is realized turning under the drive of steeraxle 2.
The structure of described drive controlling hydraulic efficiency pressure system can have various ways, everyly can control hydrostatic machine running and can all be fine by the hydraulic control system that hydraulic steering gear is controlled simultaneously.
As shown in Figure 4, divide drive axle 7 to comprise an axle tube 15, one drive wheel semiaxis 16 is set in this axle tube 15, one end of this drive wheel semiaxis 16 connects the wheel hub of wheel, hydrostatic machine 13 and axle tube 15 (shown in Fig. 5,6) connect firmly, and the output shaft 21 of hydrostatic machine 13 connects firmly with drive wheel semiaxis 16 by a coupler 17.
Particularly, on the casing of hydrostatic machine 13 and axle tube 15, flange is set, tie bolt 20 on two flanges, hydrostatic machine 13 usefulness flanges are bolted on the axle tube 15 of drive axle, the output shaft 21 of hydrostatic machine directly passes to moment of torsion the drive wheel semiaxis by described coupler 17, the drive wheels rotation.
One motor positioning step 22 is set on the output shaft of hydrostatic machine, one endoporus step is set in the mouth of pipe of axle tube 15, on this endoporus step against fixing a deep groove ball bearing 18, at an end of this ball-bearing casing 18 against setting firmly a spacer 19, motor positioning step on the hydrostatic machine 13 is against the other end that is installed in spacer 19, on the inner ring of this ball-bearing casing 18, set firmly in one gear coupling 17 (as Fig. 7, shown in 8), the external tooth of the coupling end setting of drive wheel semiaxis 16 and hydrostatic machine output shaft 21 and interior gear coupling 17 couplings is plugged in this and is connected and fixed in gear coupling 17.
Therefore, above-mentioned hydrostatic machine 13 is fixed on the drive wheel axle tube 15 by bolt 20, and hydrostatic machine output shaft 21 directly passes to moment of torsion drive wheel semiaxis 16 by interior gear coupling 17, and drive wheels 14 is rotated.Interior gear coupling 17 is fixed on by deep groove ball bearing 18 among the endoporus of axle tube 15, and motor positioning step 22 is pressed on bearing 18 on the endoporus step of axle tube 15 by spacer 19, effective location of gear coupling 17 in realizing.
Aforementioned deep groove ball bearing can be replaced with self-aligning ball bearing or self-aligning roller bearing.
Autonomous type plunger variable Hydraulic Pump 12 fuel feeding that above-mentioned hydrostatic machine 13 is driven by driving engine 4, this pump simultaneously for the hydraulic efficiency pressure system lifting, tilt, turn to modulated pressure element 28 fuel feeding of power element.
The utility model has been removed complicated intermediate power transmission mechanism, thereby has been improved driving efficiency owing to adopt two hydrostatic machine direct drive wheel revolutionss, has reduced material consumption, has improved the Operation and maintenance performance of fork truck product.
Connect wheel on this wheel nave, wheel nave is provided with braking mechanism, and described braking mechanism and prior art are just the same, parking brake (Parking) stop with liquid (when travelling) combine, do not give unnecessary details at this.
Claims (9)
1. the full hydraulic driving forklift that drives of a double static pressure motor, it is characterized in that: it includes the back counterweight, steeraxle, overhead guard, driving engine, bonnet, drive axle, door frame, shelf and hydraulic efficiency pressure system, described each parts are arranged on the frame, it is characterized in that: on this frame, also be provided with a drive controlling hydraulic efficiency pressure system and two hydrostatic machines, described drive axle is split type, each divides an end of drive axle to connect wheel, the other end connects a described hydrostatic machine, two these hydrostatic machines connect described drive controlling hydraulic efficiency pressure system, described drive controlling hydraulic efficiency pressure system connects described hydraulic efficiency pressure system, and described hydraulic efficiency pressure system connects described driving engine.
2. the full hydraulic driving forklift that double static pressure motor according to claim 1 drives, it is characterized in that: the connection structure of described hydrostatic machine and described minute drive axle is: drive axle comprised an axle tube in described minute, one drive wheel semiaxis is set in this axle tube, one end of this drive wheel semiaxis connects the wheel hub of wheel, described hydrostatic machine and axle tube connect firmly, and the output shaft of described hydrostatic machine connects firmly by a coupler and described drive wheel semiaxis.
3. the full hydraulic driving forklift that double static pressure motor according to claim 2 drives, it is characterized in that: on the casing of described hydrostatic machine and described axle tube, flange is set, tie bolt on two flanges, hydrostatic machine is bolted on the axle tube of drive axle with flange.
4. the full hydraulic driving forklift that double static pressure motor according to claim 3 drives, it is characterized in that: a motor positioning step is set on the output shaft of described hydrostatic machine, one endoporus step is set in the mouth of pipe of described axle tube, on this endoporus step against an end of fixing bearing, at the other end of this bearing against an end that sets firmly a spacer, motor positioning step on the described hydrostatic machine is against the other end that is installed in this spacer, on this bearing cone, set firmly gear coupling in, the coupling end setting of described drive wheel semiaxis and hydrostatic machine output shaft and described in the external tooth of gear coupling coupling, be plugged in this and be connected and fixed in gear coupling.
5. the full hydraulic driving forklift that double static pressure motor according to claim 4 drives, it is characterized in that: described bearing is a deep groove ball bearing, perhaps is self-aligning ball bearing, perhaps is self-aligning roller bearing.
6. the full hydraulic driving forklift that double static pressure motor according to claim 1 drives, it is characterized in that: a volume adjustable hydraulic pump that comprises in the described hydraulic efficiency pressure system is connected with described driving engine, described volume adjustable hydraulic pump in this hydraulic efficiency pressure system is connected with described drive controlling hydraulic efficiency pressure system by hydraulic tubing, and this drive controlling hydraulic efficiency pressure system is connected with two described hydrostatic machines.
7. the full hydraulic driving forklift that double static pressure motor according to claim 6 drives, it is characterized in that: described controllable capacity pump is an autonomous type plunger variable Hydraulic Pump.
8. the full hydraulic driving forklift that drives according to claim 1 or 6 described double static pressure motors, it is characterized in that: described drive controlling hydraulic efficiency pressure system comprises two groups of check valves, a change-over valve and a Das Gaspedal, two groups of check valves are connected with two described hydrostatic machines respectively, described change-over valve is connected with two groups of these check valves, this change-over valve connects the volume adjustable hydraulic pump in the described hydraulic efficiency pressure system, then connect described driving engine, described Das Gaspedal connects described driving engine; A hydraulic steering gear that comprises in the described hydraulic efficiency pressure system, it connects and composes two every group by control oil pipe and two groups of described check valves and turns to hydraulic control one-way valve to be connected with described hydrostatic machine with two oil return hydraulic control one-way valves cooperations, and this hydraulic steering gear connects hydraulic efficiency gear on the described steeraxle by oil pipe simultaneously.
9. the full hydraulic driving forklift that double static pressure motor according to claim 8 drives, it is characterized in that: described change-over valve is manual two position and four-way reversing valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201967438U CN201882864U (en) | 2010-05-20 | 2010-05-20 | Full hydraulic transmission forklift driven by double static-pressure motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201967438U CN201882864U (en) | 2010-05-20 | 2010-05-20 | Full hydraulic transmission forklift driven by double static-pressure motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201882864U true CN201882864U (en) | 2011-06-29 |
Family
ID=44180402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201967438U Expired - Lifetime CN201882864U (en) | 2010-05-20 | 2010-05-20 | Full hydraulic transmission forklift driven by double static-pressure motors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201882864U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863433A (en) * | 2010-05-20 | 2010-10-20 | 谷维才 | Full hydraulic driving forklift driven by double static pressure motor |
| CN102502458A (en) * | 2011-10-17 | 2012-06-20 | 无锡汇丰机器有限公司 | Counterbalanced forklift with compressing device |
| CN103660928A (en) * | 2013-12-27 | 2014-03-26 | 谷维才 | Autonomous-heat-exchange parallel-connection closed type forklift static-pressure drive system |
-
2010
- 2010-05-20 CN CN2010201967438U patent/CN201882864U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863433A (en) * | 2010-05-20 | 2010-10-20 | 谷维才 | Full hydraulic driving forklift driven by double static pressure motor |
| CN102502458A (en) * | 2011-10-17 | 2012-06-20 | 无锡汇丰机器有限公司 | Counterbalanced forklift with compressing device |
| CN102502458B (en) * | 2011-10-17 | 2015-07-15 | 无锡汇丰机器有限公司 | Counterbalanced forklift with compressing device |
| CN103660928A (en) * | 2013-12-27 | 2014-03-26 | 谷维才 | Autonomous-heat-exchange parallel-connection closed type forklift static-pressure drive system |
| CN103660928B (en) * | 2013-12-27 | 2016-09-21 | 阜阳市兴华机械装备有限公司 | Independent hot exchange enclosed fork truck hydrostatic drive system in parallel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105114588B (en) | Geometric five-stage type hydraulic mechanical compound stepless transmission device | |
| CN102649446B (en) | Hydraulic steering wheel steering brake control device of crawler walking machine | |
| CN101863433B (en) | Full hydraulic driving forklift driven by double static pressure motor | |
| CN203780640U (en) | Walking assembly of caterpillar vehicle | |
| CN105270469A (en) | Motor-driven steering system based on full-hydraulic steering gear | |
| CN201882864U (en) | Full hydraulic transmission forklift driven by double static-pressure motors | |
| CN103660928B (en) | Independent hot exchange enclosed fork truck hydrostatic drive system in parallel | |
| CN201980082U (en) | Hydraulically-driven walking device of maize harvesting machine | |
| CN203681279U (en) | Hydrostatic and mechanical combined four-wheel drive transmission device of harvesting machine | |
| CN201461919U (en) | Mechanical and hydraulic drive gear box | |
| CN204942457U (en) | Direct-connected and the double dynamical input device of hydrostatic stepless three fast formula in parallel of a kind of machinery | |
| CN105235508A (en) | Two-gear four-wheel hydraulic stepless variable speed drive axle assembly for large harvester | |
| CN201161631Y (en) | Down-hole trackless plastic core-rubber-tire vehicle | |
| CN102090219A (en) | Hydraulic drive traveling device for maize harvesting machine | |
| CN203537892U (en) | Traveling stepless speed change device of corn combined harvester | |
| CN103120058B (en) | With the hydraulic system of rice transplanter of automatic differential lock function | |
| CN103109630B (en) | The hydraulic system of the rice transplanter of the electrodeless adjustment of spacing in the rows | |
| CN205632112U (en) | Concrete mixing transport vechicle actuating system that traveles | |
| CN206306839U (en) | A kind of aerial work platform four-wheel-driven control system | |
| CN203681267U (en) | Automatic heat exchange parallel closed forklift static driving system | |
| CN203044776U (en) | Closed loop for traveling of forging manipulator | |
| CN2730925Y (en) | Transmission device for hydraulic driven road roller | |
| CN202390745U (en) | Novel driving mechanism of road roller | |
| CN201360434Y (en) | Chassis of combine | |
| CN203078292U (en) | Driving hydraulic system for walking of universal forklift |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110629 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |