CN204000550U - A kind of energy saving type vibration system and road roller - Google Patents
A kind of energy saving type vibration system and road roller Download PDFInfo
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- CN204000550U CN204000550U CN201420413707.0U CN201420413707U CN204000550U CN 204000550 U CN204000550 U CN 204000550U CN 201420413707 U CN201420413707 U CN 201420413707U CN 204000550 U CN204000550 U CN 204000550U
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- hydraulic bidirectional
- displacement pump
- hydraulic
- plunger displacement
- controller
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Abstract
The utility model energy saving type vibration system and road roller, belong to technical field of engineering machinery, is specifically related to a kind of road roller vibrational system, comprises electric-control motor, hydraulic bidirectional plunger displacement pump, hydraulic bidirectional piston motor, controller, vibrating handle; Hydraulic bidirectional plunger displacement pump and the hydraulic bidirectional piston motor formation closed hydraulic loop that is connected in parallel, electric-control motor directly drives hydraulic bidirectional plunger displacement pump, and hydraulic bidirectional plunger displacement pump drives the rotation of hydraulic bidirectional piston motor; Vibrating handle is electrically connected with controller, and controller is electrically connected with electromagnetic valve DT1, DT2 in electric-control motor and hydraulic bidirectional plunger displacement pump respectively; The two-way discharge capacity of described hydraulic bidirectional plunger displacement pump is all in maximum displacement values.The utility model can make motor slow-speed of revolution operation, and bidirectional ram pumpage is in maximum value, and improves road roller vibrational system efficiency, and energy-saving and emission-reduction reduce user's operating cost.
Description
Technical field
The utility model belongs to technical field of engineering machinery, is specifically related to vibrotechnique and the power-saving technology of vibratory roller.
Background technology
At present, the closed circuit that the vibrational system of vibratory roller generally adopts hydraulic bidirectional plunger displacement pump and hydraulic bidirectional piston motor to form, hydraulic bidirectional piston motor drives the eccentric block in vibratory roller vibrating wheels to realize vibrating function, the power source in this loop is the motor with flexible shaft manipulation, and the rotating speed of motor cannot arbitrarily be adjusted.Be in maximum value because the coupling of hydraulic vibrating system can not make hydraulic bidirectional plunger pump delivery, therefore under the certain situation of engine speed, need to adjust hydraulic bidirectional plunger pump delivery limiter and reduce displacement value, ensure the operation frequency of road roller.And hydraulic bidirectional plunger displacement pump is most effective at maximum displacement values place, this just causes vibratory roller hydraulic bidirectional plunger displacement pump decrease in efficiency in hydraulic vibrating system in the time of operation, and motor needs high-speed cruising, increases energy consumption, noise level is higher, and promotes user's operating cost.
Summary of the invention
The problem existing for above-mentioned prior art, the utility model provides a kind of vibrational system and road roller to be in maximum value to realize hydraulic bidirectional plunger displacement pump discharge capacity, still ensures the operation frequency of vibratory roller when electric-control motor slow-speed of revolution operation.
To achieve these goals, the utility model is achieved through the following technical solutions:
A kind of vibrational system, comprises electric-control motor, hydraulic bidirectional plunger displacement pump, hydraulic bidirectional piston motor, controller, vibrating handle; Hydraulic bidirectional plunger displacement pump and the hydraulic bidirectional piston motor formation closed hydraulic loop that is connected in parallel, electric-control motor directly drives hydraulic bidirectional plunger displacement pump, and hydraulic bidirectional plunger displacement pump drives the rotation of hydraulic bidirectional piston motor; Vibrating handle is electrically connected with controller, and controller is electrically connected with electromagnetic valve DT1, DT2 in electric-control motor and hydraulic bidirectional plunger displacement pump respectively; The two-way discharge capacity of described hydraulic bidirectional plunger displacement pump is all in maximum displacement values.
Further, described vibrating handle transmits high frequency by a narrow margin or low-frequency high-amplitude work pattern information to controller.
Further, described vibrating handle is replaceable is button.
A kind of road roller, involving vibrations system and eccentric block, vibrational system drives eccentric block vibration.
Beneficial effect: this invention is easy and simple to handle, energy-saving and emission-reduction, environment-friendly high-efficiency, and do not change user's operation habit, make hydraulic bidirectional plunger displacement pump discharge capacity be in maximum value, the transmission efficiency that ensures hydraulic bidirectional plunger displacement pump is the highest, thereby promote the efficiency of vibrational system driving-chain, allow the electric-control motor slow-speed of revolution move to ensure the operation frequency of vibratory roller, motor moves in same power section, reduce engine speed, can save energy, reduce discharge, reduce user's use cost, also can promote complete machine noise level, strengthen the comfortableness of complete machine, and make road roller operation environmental protection more economically.
Brief description of the drawings
Fig. 1 is system construction drawing of the present utility model;
In figure: 1, vibrating handle (knob), 2, controller, 3, electric-control motor, 4, hydraulic bidirectional plunger displacement pump, 5, hydraulic bidirectional piston motor, 6, eccentric block.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
A kind of vibrational system, comprises electric-control motor 3, hydraulic bidirectional plunger displacement pump 4, hydraulic bidirectional piston motor 5, controller 2, vibrating handle (knob) 1.
Hydraulic bidirectional plunger displacement pump 4 and the hydraulic bidirectional piston motor 5 formation closed hydraulic loop that is connected in parallel, electric-control motor 3 directly drives hydraulic bidirectional plunger displacement pump 4, hydraulic bidirectional plunger displacement pump 4 provides hydraulic oil to drive hydraulic bidirectional piston motor 5 to rotate to hydraulic circuit, vibrating handle (knob) 1 is electrically connected with controller 2, transmits work pattern information to controller 2; Controller 2 is electrically connected with electromagnetic valve DT1, DT2 in electric-control motor 3 and hydraulic bidirectional plunger displacement pump 4 respectively.In the rotating speed of the work pattern information control electric-control motor 3 that controller 2 transmits according to vibrating handle 1 and hydraulic bidirectional plunger displacement pump 4, electromagnetic valve DT1, DT2's must dead electricity.
Utilize a forcing press for this vibrational system, vibrational system and eccentric block 6, the hydraulic bidirectional piston motor 5 of vibrational system drives the eccentric block 6 in vibratory roller vibrating wheels to realize the vibrating function of road roller.
The utility model joint vibrational system control procedure is as follows:
Energy saving type vibration system can realize high frequency by a narrow margin with two kinds of work pattern work of low-frequency high-amplitude.
When high frequency is by a narrow margin when operation, operator sets high frequency work pattern by a narrow margin by vibrating handle (knob) 1, vibrating handle (knob) 1 transmits high frequency work pattern information by a narrow margin to controller 2, the electromagnetic valve DT1 that controller 2 sends signal controlling hydraulic bidirectional plunger displacement pump 4 obtains electric and electromagnetic valve DT2 dead electricity, make hydraulic bidirectional plunger displacement pump 4 discharge capacities be in maximum value, controller 2 also sends signal and adjusts the rotating speed of electric-control motor 3, make electric-control motor 3 slow-speed of revolution operations, ensure the operation frequency of road roller, electric-control motor 3 drives hydraulic bidirectional plunger displacement pump 4 to provide hydraulic oil to closed hydraulic loop, hydraulic oil drives hydraulic bidirectional piston motor 5, hydraulic bidirectional piston motor 5 drives eccentric block 6 rotations to realize the operation by a narrow margin of road roller high frequency again.
In the time of low-frequency high-amplitude operation, operator sets low-frequency high-amplitude work pattern by vibrating handle (knob) 1, vibrating handle (knob) 1 transmits low-frequency high-amplitude work pattern information to controller 2, the electromagnetic valve DT2 that controller 2 sends signal controlling hydraulic bidirectional plunger displacement pump 4 obtains electric and electromagnetic valve DT1 dead electricity, make hydraulic bidirectional plunger displacement pump 4 opposite side discharge capacities be in maximum value, controller 2 also sends signal and adjusts the rotating speed of electric-control motor 3, make electric-control motor 3 slow-speed of revolution operations, ensure the operation frequency of road roller, electric-control motor 3 drives hydraulic bidirectional plunger displacement pump 4 to provide hydraulic oil to closed hydraulic loop, hydraulic oil drives hydraulic bidirectional piston motor 5, hydraulic bidirectional piston motor 5 drives eccentric block 6 rotations to realize the operation of road roller low-frequency high-amplitude again.
Energy saving type vibration system and road roller are in the time of operation, all allow the discharge capacity of hydraulic bidirectional plunger displacement pump 4 be in maximum value and adjust electric-control motor 3 slow-speed of revolution and move to ensure the operation frequency of road roller by controller 2, most effective while being in maximum value due to hydraulic bidirectional plunger displacement pump 4 discharge capacities, electric-control motor 3 slow-speed of revolution operations, can improve like this efficiency of road roller vibrational system, energy-saving and emission-reduction, reduce user's operating cost.
As an example of the operation of vibratory roller low-frequency high-amplitude example, the technical solution of the utility model is described further:
Be now 2200RPM by the engine speed of the road roller vibrational system in technology, hydraulic bidirectional plunger pump delivery is 75ml/r, and the discharge capacity of hydraulic bidirectional piston motor is 75ml/r.But for ensureing that vibration frequency is 28Hz, hydraulic bidirectional plunger pump delivery need to be set as to 65ml/r.In this system, the mechanical efficiency of gearbox is 0.98, the volumetric efficiency of hydraulic bidirectional plunger displacement pump is about 0.90, mechanical efficiency is about 0.86, the volumetric efficiency of hydraulic bidirectional piston motor is about 0.97, mechanical efficiency is about 0.86, therefore the gross efficiency of this system is 0.98 × 0.90 × 0.85 × 0.97 × 0.86=0.632.
In the utility model road roller vibrational system, hydraulic bidirectional plunger pump delivery is 75ml/r, and the discharge capacity of hydraulic bidirectional piston motor is 75ml/r, and for ensureing that vibration frequency is 28Hz, engine speed is adjusted into 1800RPM.In this system, the mechanical efficiency of gearbox is 0.98, the volumetric efficiency of hydraulic bidirectional plunger displacement pump is about 0.97, mechanical efficiency is about 0.86, the volumetric efficiency of hydraulic bidirectional piston motor is about 0.97, mechanical efficiency is about 0.86, therefore the gross efficiency of this system is 0.98 × 0.97 × 0.86 × 0.97 × 0.86=0.682, comparable current use system is saved 5% power consumption, engine speed is adjusted into 1800 RPM, can save 15% power consumption.Known, this system can consume 20% by saving power.
Claims (4)
1. a vibrational system, is characterized in that: comprise electric-control motor, hydraulic bidirectional plunger displacement pump, hydraulic bidirectional piston motor, controller, vibrating handle; Hydraulic bidirectional plunger displacement pump and the hydraulic bidirectional piston motor formation closed hydraulic loop that is connected in parallel, electric-control motor directly drives hydraulic bidirectional plunger displacement pump, and hydraulic bidirectional plunger displacement pump drives the rotation of hydraulic bidirectional piston motor; Vibrating handle is electrically connected with controller, and controller is electrically connected with electromagnetic valve DT1, DT2 in electric-control motor and hydraulic bidirectional plunger displacement pump respectively; The two-way discharge capacity of described hydraulic bidirectional plunger displacement pump is all in maximum displacement values.
2. vibrational system according to claim 1, described vibrating handle transmits high frequency by a narrow margin or low-frequency high-amplitude work pattern information to controller.
3. vibrational system according to claim 1 and 2, described vibrating handle is replaceable is button.
4. utilize a road roller for vibrational system as claimed in claim 1, it is characterized in that: involving vibrations system and eccentric block, vibrational system drives eccentric block vibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420413707.0U CN204000550U (en) | 2014-07-24 | 2014-07-24 | A kind of energy saving type vibration system and road roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420413707.0U CN204000550U (en) | 2014-07-24 | 2014-07-24 | A kind of energy saving type vibration system and road roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204000550U true CN204000550U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420413707.0U Active CN204000550U (en) | 2014-07-24 | 2014-07-24 | A kind of energy saving type vibration system and road roller |
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| CN (1) | CN204000550U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088215A (en) * | 2014-07-24 | 2014-10-08 | 徐工集团工程机械股份有限公司道路机械分公司 | Energy-saving type vibration system and road roller |
| CN111749084A (en) * | 2020-06-28 | 2020-10-09 | 三一汽车制造有限公司 | Control method of road roller and road roller |
-
2014
- 2014-07-24 CN CN201420413707.0U patent/CN204000550U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088215A (en) * | 2014-07-24 | 2014-10-08 | 徐工集团工程机械股份有限公司道路机械分公司 | Energy-saving type vibration system and road roller |
| CN111749084A (en) * | 2020-06-28 | 2020-10-09 | 三一汽车制造有限公司 | Control method of road roller and road roller |
| CN111749084B (en) * | 2020-06-28 | 2022-01-28 | 三一汽车制造有限公司 | Control method of road roller and road roller |
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| C14 | Grant of patent or utility model | ||
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