CN203067374U - Rotary speed control system of engineering machinery hydraulic motor radiator and engineering machinery - Google Patents
Rotary speed control system of engineering machinery hydraulic motor radiator and engineering machinery Download PDFInfo
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- CN203067374U CN203067374U CN 201220728000 CN201220728000U CN203067374U CN 203067374 U CN203067374 U CN 203067374U CN 201220728000 CN201220728000 CN 201220728000 CN 201220728000 U CN201220728000 U CN 201220728000U CN 203067374 U CN203067374 U CN 203067374U
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- radiator
- engineering machinery
- hydraulic motor
- oil
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Abstract
The utility model discloses a rotary speed control system of an engineering machinery hydraulic motor radiator and engineering machinery. A flow regulating valve is arranged inside a radiator compensating oil way. Pressure oil output by a first hydraulic pump passes through the radiator compensating oil way and enters a radiator hydraulic motor through the flow regulating valve. In the state that an engine throttle of the engineering machinery is increased or decreased, a controlling device controls the flow regulating valve to regulate flow to enable the flow of the pressure oil entering the radiator hydraulic motor through the radiator compensating oil way to be decreased or increased. The rotary speed control system of the engineering machinery hydraulic motor radiator and the engineering machinery comprise the radiator compensating oil way, and are capable of controlling the flow of the pressure oil entering the radiator hydraulic motor to be decreased or increased and enabling the rotary speed of the radiator hydraulic motor basically not to change along the change of the engine throttle. In addition, the rotary speed control system and of the engineering machinery hydraulic motor radiator and the engineering machinery reduce waste of energy through controlling of flow, and control cost.
Description
Technical field
The utility model relates to technical field of engineering machinery, relates in particular to a kind of revolution speed control system and engineering machinery of engineering machinery radiator oil hydraulic motor.
Background technique
At present, engineering machinery, for example a kind of concrete pumping machinery often is in intermittent operating mode, and when to be expected, motor is the idling pattern, and during work, motor is the full load pattern.Because radiator fluid motor-driven oil pump is metering pump, so radiator real work operating mode is the same with complete machine, often is in intermittent operating mode, causes the radiator heat-dissipation decrease in efficiency over half.Fig. 1 is a kind of power relation figure of engineering machinery, and 3 curves among Fig. 1 are respectively complete machine working efficiency A, engine power B and radiator power C.
Fig. 2 is a kind of schematic representation of revolution speed control system of engineering machinery radiator oil hydraulic motor, as shown in Figure 2, radiator oil hydraulic motor 5 inserts the mode of hydraulic system: hydraulic oil comes out to enter 5 rotations of thermostat valve 4 back promotion radiator oil hydraulic motors by supercooler 7 back oil sump tanks through stirring valve 3 from oil hydraulic pump 1.For example: the arm-pump variable displacement pump in the concrete pumping machinery hydraulic-pressure pump, when pump truck was to be expected, boom system was not worked, and arm-pump is in no flow output operating mode substantially.Because there is a supply delay time in concrete pumping machinery in pumping, and motor is in idling mode in treating the material process, the rotating speed of motor reduces under the idling mode, cause the discharge capacity of main pump output hydraulic oil very little, and it is just littler through the flow of radiator oil hydraulic motor, cause radiator oil hydraulic motor rotating speed low, thereby influence radiating efficiency, and, because engine speed directly has influence on the hydraulic pressure pump delivery, unnecessary energy dissipation has been fallen therefore also to cause hydraulic system in the engine speed change.
Summary of the invention
In view of this, a technical problem to be solved in the utility model provides a kind of revolution speed control system of engineering machinery radiator oil hydraulic motor, has the compensation oil circuit, can control the flow that enters the radiator oil hydraulic motor and reduce or increase.
A kind of revolution speed control system of engineering machinery radiator oil hydraulic motor, the hydraulic system of described engineering machinery comprises the radiator oil feeding line, described control system comprises: control gear, first oil hydraulic pump and radiator compensation oil circuit; In described radiator compensation oil circuit, flow control valve is set; The pressure oil of described first oil hydraulic pump output compensates oil circuit, also enters described radiator oil hydraulic motor through described flow control valve by described radiator; The engine throttle of engineering machinery increase or the state that reduces under, described control gear is controlled described Flow-rate adjustment valve regulation flow, the flow that enters described radiator oil hydraulic motor is reduced or increases.
According to an embodiment of revolution speed control system of the present utility model, further, the hydraulic pressure multi-way valve of getting on the bus is set in the described radiator compensation oil circuit; In the get on the bus hydraulic oil outlet of multi-way valve of described hydraulic pressure described flow control valve is set; Wherein, the pressure oil of described first oil hydraulic pump output by described radiator compensation oil circuit, and enter described radiator oil hydraulic motor through get on the bus multi-way valve and described flow control valve of described hydraulic pressure.
According to an embodiment of revolution speed control system of the present utility model, further, described control gear comprises: throttle signal acquiring unit and control flow cell; Described throttle signal acquiring unit is connected with sensor on being arranged on engineering machinery chassis, obtains the throttle signal that described sensor is gathered, and described throttle signal is sent to described control flow cell; Described control flow cell sends the adjusting flux signal according to described throttle signal to described flow control valve; Wherein, described throttle signal comprises: throttle becomes big, throttle diminishes and throttle is constant.
According to an embodiment of revolution speed control system of the present utility model, further, described radiator oil hydraulic motor is sliding-vane motor or gear type motor.
According to an embodiment of revolution speed control system of the present utility model, further, described first oil hydraulic pump is gear pump, vane pump or plunger pump.
A kind of engineering machinery comprises the revolution speed control system of aforesaid engineering machinery radiator oil hydraulic motor.
Revolution speed control system and the engineering machinery of a kind of engineering machinery radiator oil hydraulic motor of the present utility model, has the compensation oil circuit, can control the flow that enters the radiator oil hydraulic motor reduces or increases the rotating speed that makes the radiator oil hydraulic motor not change with the variation of engine throttle substantially, reduce the waste of energy by the control of flow, controlled cost.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic representation of the power relation of a kind of engineering machinery of the prior art;
Fig. 2 is the schematic representation of the revolution speed control system of a kind of engineering machinery radiator oil hydraulic motor of the prior art;
Fig. 3 is the schematic representation according to an embodiment of the revolution speed control system of engineering machinery radiator oil hydraulic motor of the present utility model;
Fig. 4 is the schematic representation according to control gear among the embodiment of the revolution speed control system of engineering machinery radiator oil hydraulic motor of the present utility model.
Wherein: 1-oil hydraulic pump, 2-pump motor, 3-stirring motor, 4-thermostat valve, 5-radiator oil hydraulic motor, 6-stir combination brake switch and proporting, 7-hydraulic oil cooler, 11-oil hydraulic pump, 12-stirring combination brake switch and proporting, 13-pump motor, 14-stirring motor, 15-hydraulic oil cooler, 16-thermostat valve, 17-radiator oil hydraulic motor.
Embodiment
With reference to the accompanying drawings the utility model is described more fully, exemplary embodiment of the present utility model wherein is described.Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with figure and embodiment the technical solution of the utility model is carried out many-sided description.
Fig. 3 is the schematic representation according to an embodiment of the revolution speed control system of engineering machinery radiator oil hydraulic motor of the present utility model.As shown in Figure 3: a kind of revolution speed control system of engineering machinery radiator oil hydraulic motor, comprise the radiator oil feeding line, this radiator oil feeding line is with of the prior art consistent, and hydraulic oil comes out to enter 17 rotations of thermostat valve 16 back promotion radiator oil hydraulic motors by supercooler 15 back oil sump tanks through stirring valve 14 from oil hydraulic pump 11.
Control system of the present utility model comprises: control gear (not drawing among the figure), first oil hydraulic pump 20 and radiator compensation oil circuit." first " do not have other special implication for convenience.In radiator compensation oil circuit, flow control valve 18 is set; The pressure oil of first oil hydraulic pump, 20 outputs compensates oil circuit, also enters radiator oil hydraulic motor 17 through flow control valve 18 by radiator.The engine throttle of engineering machinery increase or the state that reduces under, control gear control flow control valve 18 is regulated flows, the flow that enters radiator oil hydraulic motor 17 is reduced or increases.After pressure oil flows through radiator oil hydraulic motor 17, drive radiator fan and rotate, flow is more big, and the speed-frequency of fan is more fast.
According to an embodiment of the present utility model, the hydraulic pressure multi-way valve 19 of getting on the bus is set in the radiator compensation oil circuit, also can be solenoid valve etc.In the get on the bus hydraulic oil outlet of multi-way valve 19 of hydraulic pressure flow control valve 18 is set; Wherein, the pressure oil of first oil hydraulic pump 20 output compensates oil circuit, and enters radiator oil hydraulic motor 17 through get on the bus multi-way valve 19 and flow control valve 18 of hydraulic pressure by radiator.
The revolution speed control system of engineering machinery radiator oil hydraulic motor of the present utility model, engineering machinery comprises concrete pumping machinery, hoist etc., make the rotating speed of radiator oil hydraulic motor not change the variation that has greatly with engine throttle, thereby reduced the consume of the energy.
The radiator oil hydraulic motor that comprises the engineering machinery of concrete pumping machinery, hoist etc., the variation of through-current capacity has caused radiator oil hydraulic motor change in rotational speed, therefore, can utilize and make the constant way of radiator oil hydraulic motor through-current capacity make radiator oil hydraulic motor invariablenes turning speed.
Connect the through-current capacity that flow control valve is regulated the radiator oil hydraulic motor in get on the bus multi-way valve outlet of hydraulic pressure, read in addition and recording engine throttle information, according to an embodiment, can be according to last second engine throttle situation, make flow control valve corresponding with engine throttle thereby regulate flow control valve, thereby make that the change of radiator rotating speed and engine throttle is basic irrelevant in long-time.
By reading engine speed data and itself and present engine rotating speed being compared, preliminary trend according to the programmed decision rotating speed of having set, regulate flow control valve according to this trend, make by the displacement variation of flow control valve little, thereby make and have nothing to do through the flow of radiator oil hydraulic motor and the variation of engine throttle, can take full advantage of existing resource, the arm-pump that will be in the supply delay time fully utilizes, for the radiator oil hydraulic motor provides power, improve radiator oil hydraulic motor speed range.
Fig. 4 is the schematic representation according to control gear among the embodiment of the revolution speed control system of engineering machinery radiator oil hydraulic motor of the present utility model.As shown in Figure 4: control gear 21 comprises: throttle signal acquiring unit 22 and control flow cell 23; Throttle signal acquiring unit 22 is connected with sensor 25 on being arranged on engineering machinery chassis, obtains the throttle signal that sensor 25 is gathered, and throttle signal is sent to control flow cell 23; Control flow cell 23 sends the adjusting flux signal according to throttle signal to flow control valve 24; Wherein, throttle signal comprises: throttle becomes big, throttle diminishes and throttle is constant.
According to an embodiment of the present utility model, at first read the throttle signal on chassis by throttle signal acquiring unit 22, can in the oil circuit by the gas pedal on base plate or motor sensor collection throttle signal be set.Throttle signal acquiring unit 22 converts physical signalling to digital quantity.
Secondly, control flow cell 23 is compared the rule of the setting in this digital quantity storage and the memory control device 21, draws that signal becomes big, diminishes, constant three kinds of forms, controls flow cell 23 then and this form is translated as the signal of controlling flow control valve.
The controlling party of flow control valve 24 is to changing on the contrary with the semaphore of dynamics and front, and being reacted on the engine speed is engine speed when becoming big, and flow control valve diminishes; When engine speed reduced, it is big that flow control valve becomes.Engine speed if constant then this moment flow control valve play a simple leakage compensation effect.
The size of radiator oil hydraulic motor rotating speed and engine throttle is irrelevant substantially, means that the rotating speed of radiator oil hydraulic motor is constant substantially when the engine throttle variation causes engine speed to change.For example, the efficient of radiator is constant when idling or jib height difference cause engine speed to change, thereby has caused the energy utilization rate of hydraulic system to improve.
According to an embodiment of the present utility model, the radiator oil hydraulic motor is sliding-vane motor or gear type motor etc.First oil hydraulic pump is gear pump, vane pump or plunger pump etc.
According to an embodiment of the present utility model, a kind of engineering machinery, for example, concrete pumping machinery, Hoisting Machinery etc. comprise the revolution speed control system of engineering machinery radiator oil hydraulic motor as above.
Revolution speed control system and the engineering machinery of engineering machinery radiator oil hydraulic motor of the present utility model, engineering machinery comprises concrete pump, hoist etc., has radiator oil hydraulic motor compensation oil circuit, can control the flow that enters the radiator oil hydraulic motor reduces or increases, the rotating speed of radiator oil hydraulic motor is not changed with the variation of engine throttle substantially, reduce the waste of energy by the control of flow, controlled cost.
Description of the present utility model provides for example with for the purpose of describing, and is not exhaustively or with the utility model to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present utility model and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiments that have various modifications that the utility model design is suitable for special-purpose.
Claims (6)
1. the revolution speed control system of an engineering machinery radiator oil hydraulic motor, the hydraulic system of described engineering machinery comprises the radiator oil feeding line, it is characterized in that, described revolution speed control system comprises:
Control gear, first oil hydraulic pump and radiator compensation oil circuit; In described radiator compensation oil circuit, flow control valve is set; The pressure oil of described first oil hydraulic pump output compensates oil circuit, also enters described radiator oil hydraulic motor through described flow control valve by described radiator;
The engine throttle of engineering machinery increase or the state that reduces under, described control gear is controlled described Flow-rate adjustment valve regulation flow, the flow that enters the pressure oil of described radiator oil hydraulic motor by described radiator compensation oil circuit is reduced or increases.
2. revolution speed control system as claimed in claim 1 is characterized in that:
The hydraulic pressure multi-way valve of getting on the bus is set in the described radiator compensation oil circuit; In the get on the bus hydraulic oil outlet of multi-way valve of described hydraulic pressure described flow control valve is set;
Wherein, the pressure oil of described first oil hydraulic pump output by described radiator compensation oil circuit, and enter described radiator oil hydraulic motor through get on the bus multi-way valve and described flow control valve of described hydraulic pressure.
3. revolution speed control system as claimed in claim 1 is characterized in that:
Described control gear comprises: throttle signal acquiring unit and control flow cell;
Described throttle signal acquiring unit is connected with sensor on being arranged on engineering machinery chassis, obtains the throttle signal that described sensor is gathered, and described throttle signal is sent to described control flow cell;
Described control flow cell sends the adjusting flux signal according to described throttle signal to described flow control valve;
Wherein, described throttle signal comprises: throttle becomes big, throttle diminishes and throttle is constant.
4. revolution speed control system as claimed in claim 1 is characterized in that:
Described radiator oil hydraulic motor is sliding-vane motor or gear type motor.
5. revolution speed control system as claimed in claim 1 is characterized in that:
Described first oil hydraulic pump is gear pump, vane pump or plunger pump.
6. engineering machinery is characterized in that:
Comprise the revolution speed control system as any described engineering machinery radiator oil hydraulic motor of claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220728000 CN203067374U (en) | 2012-12-26 | 2012-12-26 | Rotary speed control system of engineering machinery hydraulic motor radiator and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220728000 CN203067374U (en) | 2012-12-26 | 2012-12-26 | Rotary speed control system of engineering machinery hydraulic motor radiator and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203067374U true CN203067374U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220728000 Expired - Lifetime CN203067374U (en) | 2012-12-26 | 2012-12-26 | Rotary speed control system of engineering machinery hydraulic motor radiator and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203067374U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115388068A (en) * | 2022-04-06 | 2022-11-25 | 广州多钛克机械科技有限公司 | Hydraulic power equipment control system and hydraulic power equipment thereof |
-
2012
- 2012-12-26 CN CN 201220728000 patent/CN203067374U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115388068A (en) * | 2022-04-06 | 2022-11-25 | 广州多钛克机械科技有限公司 | Hydraulic power equipment control system and hydraulic power equipment thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XUZHOU XUGONG SCHWING MACHINERY CO., LTD. Free format text: FORMER OWNER: XCMG CONSTRUCTION MACHINERY CO., LTD. Effective date: 20130710 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130710 Address after: 221004 No. 29, Peach Road, Xuzhou economic and Technological Development Zone, Jiangsu, Xuzhou Patentee after: XUZHOU XCMG SCHWING MACHINERY Co.,Ltd. Address before: 221004 Industrial Zone, Xuzhou Economic Development Zone, Jiangsu Patentee before: XUZHOU CONSTRUCTION MACHINERY GROUP Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |