CN103758175A - Variable speed control device for sliding type loader - Google Patents
Variable speed control device for sliding type loader Download PDFInfo
- Publication number
- CN103758175A CN103758175A CN201310735546.7A CN201310735546A CN103758175A CN 103758175 A CN103758175 A CN 103758175A CN 201310735546 A CN201310735546 A CN 201310735546A CN 103758175 A CN103758175 A CN 103758175A
- Authority
- CN
- China
- Prior art keywords
- oil
- control device
- variable speed
- oil cylinder
- sliding type
- 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.)
- Pending
Links
Images
Abstract
The invention discloses a variable speed control device for a sliding type loader. The variable speed control device comprises an oil cylinder and a motor variable speed oil cylinder. The oil cylinder is communicated with the motor variable speed oil cylinder through an oil pipe, the oil pipe is provided with a hand pump and an oil line control device, the hand pump provides power of hydraulic oil in the oil pipe, and the oil line control device controls the oil pipe to be connected or disconnected. Due to the fact that the sliding type loader variable speed control device is an independent hydraulic system, the sliding type loader variable speed control device does not interfere with an engine driving system and is convenient in a mounting mode; due to the fact that a hand pump hydraulic system is adopted to replace a guide hydraulic system, a gear pump is not used, the hand pump hydraulic system is not installed with an engine, a mounting opening of the engine is reduced, the pump does not work when the speed is not changed, the energy demand is reduced, and engine power can be reduced. The sliding type loader variable speed control device is simpler in structure, the cost of the sliding type loader is greatly reduced, and the problem that the sliding type loader directly operates the hydraulic system and a variable speed motor cannot be installed is solved.
Description
Technical field
The present invention relates to technical field of engineering machinery, especially a kind of wheel type excavator speed-change control device.
Background technology
Wheel type excavator has two kinds of speed both at home and abroad at present, a kind of is single speed, another is for there being speed shelves speed change, this speed shelves speed change is mainly on car load, to fill miniature gear pump at present, and hydraulic oil is input to makeshift valve, by controlling reversal valve, hydraulic oil is delivered to the oil cylinder of controlling speed changing function, the work that gear pump also can not continue in speed change at vehicle, consumed power, direct manipulation hydraulic system sliding loader, owing to there is no miniature gear pump, just cannot be realized speed change.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of wheel type excavator speed-change control device, simpler in structure, reduce significantly the cost of sliding loader.
In order to realize foregoing invention object, the invention provides following technical scheme: a kind of wheel type excavator speed-change control device, comprise oil cylinder and motor speed varying oil cylinder, described oil cylinder is communicated with described motor speed varying oil cylinder through oil pipe; On described oil pipe, be provided with manual pump and oil route controller, described manual pump provides hydraulic oil power in described oil pipe; Described oil route controller is controlled opening or closing of described oil pipe.
Further, between described oil route controller and described motor speed varying oil cylinder, threeway is set, two output circuits of this threeway are all communicated with described motor speed varying oil cylinder.
Further, described oil route controller is comprised of with the mechanism that opens one way valve one way valve.
Compared with prior art, the present invention has the following advantages: owing to being hydraulic system independently, do not interfere with engine driving system, mounting means is convenient, owing to adopting manual pump hydraulic system to replace leading hydraulic system, do not use gear pump, do not install with motor, reduced the installing port of motor, not air pump inoperative when speed change, reduce energy demand, can reduce engine power.Structurally simpler, significantly reduce the cost of sliding loader, solved the problem that sliding loader direct manipulation hydraulic system cannot fill variable speed driver.
Accompanying drawing explanation
Fig. 1 is principle schematic of the present invention;
Fig. 2 is oil route controller structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, describe the present invention, the description of this part is only exemplary and explanatory, should not have any restriction to protection scope of the present invention.
A kind of wheel type excavator speed-change control device as shown in Figure 1, comprises oil cylinder 1 and motor speed varying oil cylinder 4, and described oil cylinder 1 is communicated with described motor speed varying oil cylinder 4 through oil pipe; On described oil pipe, be provided with manual pump 2 and oil route controller 3, described manual pump 2 provides hydraulic oil power in described oil pipe; Described oil route controller 3 is controlled opening or closing of described oil pipe.
As shown in Figure 2, on oil route controller 3, include long pedal assembly 31, one-way valve opens pedal assembly 32, one way valve 33 parts, long pedal assembly 31 rotates and promotes both variable-ratios of manual pump 2 working barrel oil, 32 motions of one-way valve opens pedal assembly had both become another speed, the long pedal assembly 31 of control device is a logical relation with one-way valve opens assembly 32, can be connected and be realized by other device, control device be arranged on vehicle frame.
Normally open need to be connected to corresponding gear according to gear, after manual pump 2 work, start to have hydraulic oil to enter oil cylinder 4 and promote oil cylinder work speed change, after manual pump 2 unclamps owing to there being unmarried valve hydraulic oil to reflux, need speed change with control device, to open one way valve 33, oil cylinder is got back to normally open.Realized saving energy consumption, reduced the pump quantity connecting on motor, assembling is controlled simple, works more reliable, and cost is lower.Solved and be not with leading hydraulic system sliding loader speed change scheme.
By allowing manual pump 2 working barrel oil realize speed change, open one way valve and both realized another speed that changes to, as do not operated the locking of all assurance speed, are all the scope of protection of the invention.
Wheel type excavator speed-change control device of the present invention, oil cylinder 1 fuel feeding oil-feed pump, manual pump 2 provides pressure oil, and oil route controller 3 carries out the switching of high, low speed shelves, and motor is carried out oil cylinder 4 and is promoted motor speed varying.
Claims (3)
1. a wheel type excavator speed-change control device, is characterized in that: comprise oil cylinder and motor speed varying oil cylinder, described oil cylinder is communicated with described motor speed varying oil cylinder through oil pipe; On described oil pipe, be provided with manual pump and oil route controller, described manual pump provides hydraulic oil power in described oil pipe; Described oil route controller is controlled opening or closing of described oil pipe.
2. wheel type excavator speed-change control device as claimed in claim 1, is characterized in that: between described oil route controller and described motor speed varying oil cylinder, threeway is set, two output circuits of this threeway are all communicated with described motor speed varying oil cylinder.
3. wheel type excavator speed-change control device as claimed in claim 1 or 2, is characterized in that: described oil route controller is comprised of with the mechanism that opens one way valve one way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310735546.7A CN103758175A (en) | 2013-12-28 | 2013-12-28 | Variable speed control device for sliding type loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310735546.7A CN103758175A (en) | 2013-12-28 | 2013-12-28 | Variable speed control device for sliding type loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103758175A true CN103758175A (en) | 2014-04-30 |
Family
ID=50525484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310735546.7A Pending CN103758175A (en) | 2013-12-28 | 2013-12-28 | Variable speed control device for sliding type loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103758175A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2578587Y (en) * | 2002-09-19 | 2003-10-08 | 卢山 | Hydraulic regulator |
| CN200975168Y (en) * | 2006-09-25 | 2007-11-14 | 天津鼎盛工程机械有限公司 | Engineering machinery engine bonnet and opening gear of driving room |
| JP2008215528A (en) * | 2007-03-06 | 2008-09-18 | Shin Caterpillar Mitsubishi Ltd | Hydraulic control circuit in construction machine |
| CN201354075Y (en) * | 2008-12-19 | 2009-12-02 | 常州科研试制中心有限公司 | Automatic hydraulic brake system of vehicle |
| WO2011073721A1 (en) * | 2009-12-17 | 2011-06-23 | Volvo Compact Equipment Sas | Construction equipment machine with improved boom suspension |
| CN202789795U (en) * | 2012-06-15 | 2013-03-13 | 江苏柳工机械有限公司 | Hydraulic system of skid steer loader |
| CN101558243B (en) * | 2006-12-15 | 2013-05-08 | 株式会社小松制作所 | Engine load control device of work vehicle |
| CN103307137A (en) * | 2013-06-27 | 2013-09-18 | 中国北方车辆研究所 | AMT clutch manual emergency control device |
-
2013
- 2013-12-28 CN CN201310735546.7A patent/CN103758175A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2578587Y (en) * | 2002-09-19 | 2003-10-08 | 卢山 | Hydraulic regulator |
| CN200975168Y (en) * | 2006-09-25 | 2007-11-14 | 天津鼎盛工程机械有限公司 | Engineering machinery engine bonnet and opening gear of driving room |
| CN101558243B (en) * | 2006-12-15 | 2013-05-08 | 株式会社小松制作所 | Engine load control device of work vehicle |
| JP2008215528A (en) * | 2007-03-06 | 2008-09-18 | Shin Caterpillar Mitsubishi Ltd | Hydraulic control circuit in construction machine |
| CN201354075Y (en) * | 2008-12-19 | 2009-12-02 | 常州科研试制中心有限公司 | Automatic hydraulic brake system of vehicle |
| WO2011073721A1 (en) * | 2009-12-17 | 2011-06-23 | Volvo Compact Equipment Sas | Construction equipment machine with improved boom suspension |
| CN202789795U (en) * | 2012-06-15 | 2013-03-13 | 江苏柳工机械有限公司 | Hydraulic system of skid steer loader |
| CN103307137A (en) * | 2013-06-27 | 2013-09-18 | 中国北方车辆研究所 | AMT clutch manual emergency control device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103671335A (en) | Load-sensitive electric proportional multi-loop valve | |
| CN203113417U (en) | Univariate hydraulic system of loading machine | |
| CN103806498B (en) | Excavator hydraulic system | |
| CN105626844A (en) | Hydraulic control system of wet type double-clutch speed changing box | |
| TWM449089U (en) | Hydraulic system, drive system and electric vehicle | |
| CN108999826A (en) | Raise boring machine multifunction hydraulic integrates valve group | |
| CN203255243U (en) | Hybrid vehicle steering control device | |
| US20080112818A1 (en) | Auxiliary Energy-Accumulation And Flow-Enhancement Device For Hydraulic System Of Concrete Pump | |
| CN112943752A (en) | Special gearbox hydraulic circuit for hybrid power | |
| CN201809801U (en) | Control integration module of excavator hydraulic pilot oil source | |
| CN110578794A (en) | Hydraulic control oil way of special DHT hybrid transmission | |
| CN201553113U (en) | Hydraulic system for crawler traction engines | |
| CN213017371U (en) | Double-pump coupling hydraulic control system of automobile gearbox | |
| CN103498491A (en) | Bucket rod prior control loop of excavator and bucket rod control method | |
| CN201255147Y (en) | Multifunction driving liquid controlled valve | |
| CN103362899A (en) | Pilot, heat dissipation and integration hydraulic system and loading machine | |
| CN203062948U (en) | Hydraulic pilot control system of oil-liquid hybrid power concrete mixer truck | |
| CN102530784A (en) | Work arm hydraulic system of high-altitude operation vehicle and high-altitude operation vehicle with the hydraulic system | |
| WO2024001145A1 (en) | Hydraulic power system, work machine, and control method for hydraulic power system | |
| CN204898749U (en) | Excavator hydraulic system with energy repayment function | |
| CN103758175A (en) | Variable speed control device for sliding type loader | |
| CN110588631B (en) | Control method of hybrid power system | |
| CN201944036U (en) | Energy-conservation hydraulic system for loader | |
| CN205207642U (en) | Two fast automatic transmission liquid accuse gear shift systems | |
| CN203230645U (en) | Dual-energy-saving combination hydraulic valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140430 |
|
| RJ01 | Rejection of invention patent application after publication |