CN2505458Y - Static pressure driving device for loader - Google Patents

Static pressure driving device for loader Download PDF

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Publication number
CN2505458Y
CN2505458Y CN 01270906 CN01270906U CN2505458Y CN 2505458 Y CN2505458 Y CN 2505458Y CN 01270906 CN01270906 CN 01270906 CN 01270906 U CN01270906 U CN 01270906U CN 2505458 Y CN2505458 Y CN 2505458Y
Authority
CN
China
Prior art keywords
static pressure
loader
driving
actuating device
driving engine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 01270906
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Chinese (zh)
Inventor
董志广
许红旗
肖红路
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHONGWAIJIAN DEVELOPMENT CO Ltd
Original Assignee
ZHONGWAIJIAN DEVELOPMENT CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHONGWAIJIAN DEVELOPMENT CO Ltd filed Critical ZHONGWAIJIAN DEVELOPMENT CO Ltd
Priority to CN 01270906 priority Critical patent/CN2505458Y/en
Application granted granted Critical
Publication of CN2505458Y publication Critical patent/CN2505458Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a static pressure driving device for loader with the function of energy conservation. A motor is provided with a static pressure driving device directly or through a transfer case to put the loader into operation. No use is made of a hydrotransmitter in the utility model, and both a driven pump and driven motor are designed according to the output characteristic curve of the motor. Therefore full use is made of the power of motor to ensure that the motor can work under the power rating, thereby effectively and drastically saving fuel and protecting the motor.

Description

Loader static pressure actuating device
Technical field
The utility model belongs to construction machinery and equipment to be improved, and particularly relates to a kind of energy-conservation loader static pressure actuating device that has.
Background technology
In present known loader, especially more than 3 tons or 3 tons in the loader of tonnage, its mechanical drive partly is made up of associated mechanical parts such as driving engine, turbine transformer, change speed gear boxs.It drives majority is to adopt mechanical hydraulic transmission mode, and promptly driving engine passes through turbine transformer, change speed gear box, transmission shaft successively, bridge (containing wheel) before and after driving.In this mechanical hydraulic transmission, must utilize turbine transformer, and it self structurally, it is lower to have the shortcoming-efficient that overcomes not too easily.So be with regard to the weak point that causes loader: cal val is bigger, the complete machine loss in efficiency is higher, so oil consumption is higher, forms the waste that the fuel oil energy should not take place.
Summary of the invention
The utility model provides a kind of energy-conservation loader static pressure actuating device that has for solving the technical matters that exists in the known technology.
The technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is:
The utility model connects driving engine, driver's cab and back axle by afer bay, and connecting forebay and propons, the power of driving engine drives forward and backward bridge respectively through transmission shaft, the apparatus for work that front end has scraper bowl is installed on the forebay, be assembled into loader machinery complete machine, and oil pump, oil motor, valve, oil cylinder, form jointly with the organic connection of pipeline pipe fitting, it is characterized in that driving engine directly, also can be equipped with the static pressure actuating device that makes loader operation by auxiliary gear box.
The utility model can also adopt following technical measures:
Described static pressure actuating device can be a driving engine connects driving pump in the driving pump assembly by auxiliary gear box, and it and CD-ROM drive motor are linked to be enclosed variable hydraulic circuit; This CD-ROM drive motor drags the change speed gear box that is provided with two output shafts, and an one output shaft driving rear axle, and another output shaft drives propons.
Described static pressure actuating device also can be a driving engine connects driving pump in the driving pump assembly by auxiliary gear box, and it and CD-ROM drive motor are linked to be enclosed variable hydraulic circuit; This CD-ROM drive motor direct drive is provided with the back axle of an output shaft, and its output shaft drives propons.
Advantage and the good effect that the utlity model has are: this device is owing to cancelled turbine transformer; and driving pump and CD-ROM drive motor are that the output characteristic curve according to driving engine is provided with; so can make full use of the power of driving engine; the guarantee driving engine is worked under the rating horsepower condition, can save fuel oil and protection driving engine effectively significantly.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the static pressure of the utility model embodiment 1 drives the asphalt principle scheme drawing;
Fig. 3 is that the static pressure of the utility model embodiment 2 drives the asphalt principle scheme drawing.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
This device comprises that driving engine 1 directly or by auxiliary gear box 4 is equipped with the static pressure actuating device, makes the loader operation.Specific embodiment can have a plurality of, and existing two embodiment that only have typicalness elaborate.
Embodiment 1; See also Fig. 1, Fig. 2, this device comprises that afer bay 2 is connecting driving engine 1, driver's cab and back axle 3, also connects forebay 7 and propons 8 simultaneously, and the apparatus for work that front end has scraper bowl is installed on the forebay 7, is assembled into loader machinery complete machine.Auxiliary gear box 4 is housed on driving engine 1.This auxiliary gear box 4 is provided with casing and Transmission, is intended to that single head is imported transfer and becomes bull output, utilizes its driving pump 14 in the driving pump assembly 15 that is rigidly connected at this for different.Said driving pump assembly 15, be that conventional driving pump assembly (is represented with long and two-short dash line among Fig. 2, dotted line among the figure is represented its control loop), it also is provided with solenoid directional control valve 16, oil cylinder 17, quantitative gear pump 18 and the pressure valve 19 etc. that can control himself except that the driving pump 14 that plays the role of a nucleus.Driving pump 14 is linked to be enclosed variable hydraulic circuit with CD-ROM drive motor 12, and their control, matching way all are that characteristic working curve according to driving engine 1 designs.Quantitative gear pump 18 in the driving pump assembly also is rigidly connected with driving engine 1, the rotating speed of driving engine 1 just can directly influence the delivery rate size of quantitative gear pump 18, and its pressure oil output is divided into two-way by a pressure valve 19: one tunnel repairing road as device; The oil cylinder 17 of another road by solenoid directional control valve 16 control of access driving pumps 14 discharge capacities is again with the discharge capacity of these oil cylinder 17 controlling and driving pumps 14.In a word, the rotating speed of driving engine 1 height can influence the displacement size of driving pump 14, and the throttle of driving engine 1 is chaufeur control, and chaufeur then can realize regulating road speed by the throttle of control driving engine 1 like this.Therefrom also as can be seen, the high pressure of this device also influences the discharge capacity of driving pump 14 and CD-ROM drive motor 12 simultaneously to some extent, mainly be when the pressure of device is higher, the swash plate pivot angle of driving pump 14, CD-ROM drive motor 12 the two control discharge capacity can be made corresponding action, makes driving engine 1 non-overloading under the situation that as far as possible satisfies operating mode.Also be provided with micrometering valve 13 in this device, this is because during the loader general job, also will walk.When if operation need be exerted oneself greatly suddenly, chaufeur then can be controlled the speed of a motor vehicle by handling micrometering valve 13, allows the horsepower output of driving engine try one's best to the apparatus for work supply, to ensure the needs in the operation.In this static pressure actuating device, also be provided with CD-ROM drive motor 12 and drag a change speed gear box 11 that is shaped on two output shafts, said these two output shafts, one of them is a driving rear axle 3; Another is to drive propons.To described related content, carry out organic connection with pipeline and pipe fitting, and the cooperation of associated mechanical part, can realize that the static pressure of loader drives.
Embodiment 2, see also Fig. 1, Fig. 3, the basic structure of this embodiment and embodiment 1 is identical, its difference only has a bit, promptly cancel CD-ROM drive motor 12 and change speed gear box 11 among the embodiment 1, and be provided with the CD-ROM drive motor 22 that two parallel connections at this, and common direct drive is shaped on the back axle 21 of an output shaft, and said this output shaft drives propons again.

Claims (3)

1. loader static pressure actuating device, comprise that afer bay (2) connects driving engine (1), driver's cab and back axle, and connecting forebay (7) and propons (8), the power of driving engine drives forward and backward bridge respectively through transmission shaft, forebay is installed with the apparatus for work that front end has scraper bowl on (7), be assembled into loader machinery complete machine, and oil pump, oil motor, valve, oil cylinder, form jointly with the organic connection of pipeline pipe fitting, it is characterized in that: driving engine (1) directly, also can be equipped with the static pressure actuating device that makes loader operation by auxiliary gear box (4).
2. loader static pressure actuating device according to claim 1, it is characterized in that: the static pressure actuating device, can be that driving engine (1) passes through the driving pump (14) in auxiliary gear box (4) the connection driving pump assembly (15), it and CD-ROM drive motor (12) be linked to be enclosed variable hydraulic circuit; This CD-ROM drive motor (12) drags the change speed gear box (11) that is provided with two output shafts, and an one output shaft driving rear axle (3), and another output shaft drives propons.
3. loader static pressure actuating device according to claim 1, it is characterized in that: the static pressure actuating device, also can be that driving engine (1) passes through the driving pump in auxiliary gear box (4) the connection driving pump assembly (15), it and CD-ROM drive motor (22) be linked to be enclosed variable hydraulic circuit; This CD-ROM drive motor (22) direct drive is provided with the back axle (21) of an output shaft, and its output shaft drives propons.
CN 01270906 2001-11-15 2001-11-15 Static pressure driving device for loader Expired - Fee Related CN2505458Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 01270906 CN2505458Y (en) 2001-11-15 2001-11-15 Static pressure driving device for loader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 01270906 CN2505458Y (en) 2001-11-15 2001-11-15 Static pressure driving device for loader

Publications (1)

Publication Number Publication Date
CN2505458Y true CN2505458Y (en) 2002-08-14

Family

ID=33676446

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 01270906 Expired - Fee Related CN2505458Y (en) 2001-11-15 2001-11-15 Static pressure driving device for loader

Country Status (1)

Country Link
CN (1) CN2505458Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102555805A (en) * 2011-12-15 2012-07-11 中联重科股份有限公司 Motor vehicle, control system of rear vehicle part of motor vehicle and vehicle speed control method
CN103836181A (en) * 2014-02-28 2014-06-04 龙工(上海)机械制造有限公司 Loader static pressure transmission control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102555805A (en) * 2011-12-15 2012-07-11 中联重科股份有限公司 Motor vehicle, control system of rear vehicle part of motor vehicle and vehicle speed control method
CN103836181A (en) * 2014-02-28 2014-06-04 龙工(上海)机械制造有限公司 Loader static pressure transmission control system

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GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee