CN213360666U - Proportional integrated hydraulic control system for pile driver - Google Patents
Proportional integrated hydraulic control system for pile driver Download PDFInfo
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- CN213360666U CN213360666U CN202022180136.9U CN202022180136U CN213360666U CN 213360666 U CN213360666 U CN 213360666U CN 202022180136 U CN202022180136 U CN 202022180136U CN 213360666 U CN213360666 U CN 213360666U
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Abstract
The utility model discloses a pile driver is with integrated hydraulic control system of proportion, it belongs to engineering machine tool technical field. The control method solves the defects of poor control precision, serious pipeline interference and high cost of the traditional pile driver in the prior art. The main structure of the device comprises a working device, an integrated proportional control valve group, a main control valve, a pilot pump and a main pump, wherein the main pump is connected with the working device through the main control valve and the integrated proportional control valve group, and the pilot pump is connected with a control signal end of the main control valve through the integrated proportional control valve group. The utility model discloses mainly used is on engineering machine tools such as pile driver.
Description
The technical field is as follows:
the utility model belongs to the technical field of engineering machine tool, specifically speaking especially relates to a proportional integration hydraulic control system for pile driver.
Background art:
with the development of economy and the progress of society, the safety requirement on construction on soft geology is higher and higher, the pile driver is used as an essential engineering machine for carrying out construction site pile enclosing, most of the existing pile drivers are machines modified on the basis of a common excavator, and the performance is relatively poor.
Present pile driver mostly is makeed into on having the excavator basis, in order to realize the operation of the many actions of pile driver, present pile driver principle utilizes a plurality of solenoid valves, control corresponding gyration, press from both sides tightly, action such as pile, the pile driver has removed equipment on the basis of traditional excavator, change into the pile driver tup, and the pile driver tup generally includes the pile, press from both sides tightly, three work such as gyration, traditional pile driver realizes the control to the action of tup through the solenoid valve of difference, realize squeezing into the underground with the steel sheet pile. It has the following disadvantages: 1. the slewing mechanism is controlled by a switching value electromagnetic valve, and rotates at the maximum speed after being electrified, so that the control precision is poor, the speed cannot be controlled by people, and the fine adjustment of a slewing turntable cannot be realized; 2. the multiple electromagnetic valves are utilized, the integration level is low, the number of hydraulic pipelines is large, the pipelines are seriously interfered, and the cost is high.
The invention content is as follows:
the to-be-solved technical problem of the utility model is overcome prior art not enough, provide a proportional integration hydraulic control system for pile driver, its integrated proportional control valves realizes integrating the control, realizes the control to a plurality of actions through a valves, and the system pipeline is simpler.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
the proportional integrated hydraulic control system for the pile driver comprises a working device, an integrated proportional control valve group, a main control valve, a pilot pump and a main pump, wherein the main pump is connected with the working device through the main control valve and the integrated proportional control valve group, and the pilot pump is connected with a control signal end of the main control valve through the integrated proportional control valve group.
Preferably, the integrated proportional control valve group comprises a clamping solenoid valve, a constant-clamping solenoid valve, a rotary control proportional solenoid valve and a pile-driving control proportional pilot valve, wherein an oil port a of the main control valve is respectively connected with the clamping solenoid valve, the constant-clamping solenoid valve, the rotary control proportional solenoid valve and the working device, and an oil port B of the main control valve is respectively connected with the clamping solenoid valve, the constant-clamping solenoid valve and the rotary control proportional solenoid valve through a first check valve.
Preferably, the working device includes a clamping cylinder, a swing motor, and a vibration motor.
Preferably, the clamping solenoid valve and the all-time clamping solenoid valve are connected in parallel and then connected with the clamping cylinder, the rotary control proportional solenoid valve is connected with the rotary motor, and the pilot pump is connected with the control signal end of the main control valve through the pile driving control proportional pilot valve.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the rotation is controlled by a rotation control proportional solenoid valve, and when an electric proportional shifting piece on the pilot handle is operated, the rotation speed of the turntable can be accurately controlled by controlling the angle for shifting the electric proportional shifting piece, namely the larger the shifting angle of the electric proportional shifting piece is, the faster the rotation speed is;
2. the integrated proportional control valve group is designed into a cartridge valve, the reliability of the cartridge valve is higher, integrated control is realized by the integrated proportional control valve group, control over a plurality of actions is realized by one existing valve group, and a system pipeline is simpler.
Description of the drawings:
fig. 1 is a hydraulic schematic diagram of the present invention.
In the figure: 1. a working device; 2. integrating a proportional control valve bank; 3. a first check valve; 4. clamping the electromagnetic valve; 5. clamping the electromagnetic valve all the time; 6. a rotary control proportional solenoid valve; 7. a pile driving control proportional pilot valve; 8. an overflow valve; 9. a master control valve; 10. clamping the oil cylinder; 11. a pilot pump; 12. a rotary motor; 13. a main pump; 14. a hydraulic oil tank; 15. a vibration motor; 16. a second one-way valve; 17. and a third one-way valve.
The specific implementation mode is as follows:
the present invention will be further described with reference to the following specific embodiments and accompanying drawings.
Example 1:
as shown in fig. 1, a proportional integrated hydraulic control system for a pile driver comprises a working device 1, an integrated proportional control valve bank 2, a main control valve 9, a pilot pump 11 and a main pump 13, wherein the main pump 13 is connected with the working device 1 through the main control valve 9 and the integrated proportional control valve bank 2, and the pilot pump 11 is connected with a control signal end of the main control valve 9 through the integrated proportional control valve bank 2. The oil suction ports of the pilot pump 11 and the main pump 13 are connected with a hydraulic oil tank 14, and the oil return ports of the integrated proportional control valve bank 2 and the main control valve 9 are connected back to the hydraulic oil tank 14.
Example 2:
the utility model provides a pile driver is with proportion integration hydraulic control system, integrated proportional control valves 2 is including pressing from both sides tight solenoid valve 4, all the time press from both sides tight solenoid valve 5, gyration control proportional solenoid valve 6 and pile control proportional pilot valve 7, and the hydraulic fluid port A of main control valve 9 is connected with the vibrating motor 15 who presss from both sides tight solenoid valve 4, all the time press from both sides tight solenoid valve 5, gyration control proportional solenoid valve 6 and equipment 1 respectively, and hydraulic fluid port B is connected with pressing from both sides tight solenoid valve 4, all the time press from both sides tight solenoid valve 5 and gyration control proportional solenoid valve 6 respectively through first check valve 3.
The rotation control part in the working device 1 adopts an electric proportional pedal and a rotation control proportional electromagnetic valve 6 for control, the control signal is proportional quantity, the action fine adjustment of the working device 1 can be realized, and the control precision is higher compared with the electromagnetic valve of switching quantity.
The integrated proportional control valve group 2 is fixedly arranged on a beam above a main control valve 9 of the excavator, the integrated proportional control valve group 2 consists of four parts, and is used for respectively controlling four actions of clamping, always clamping, rotating and piling, wherein the clamping electromagnetic valve 4 and the rotating proportional control electromagnetic valve 6 are normally open, and when a control signal is obtained, a clamping oil cylinder 10 and a rotating motor 12 on the working device 1 are respectively controlled, so that four actions of opening and closing a clamping nozzle and left rotating and right rotating of a turntable are realized; the clamping control part is always clamped, and the normal close quantity is adopted during the piling action (linked with the piling action), so that the clamping force of the system on the steel sheet pile can be always kept during the piling. The main working part utilizes a foot-operated proportional valve to realize proportional control on the main control valve 9, utilizes the main control valve 9 to control the action of the vibration motor 15, and simultaneously proportional signals can realize obtaining different vibration frequencies according to the force of treading the pedal by feet.
The working device 1 includes a clamping cylinder 10, a swing motor 12, and a vibration motor 15. The clamping electromagnetic valve 4 and the all-time clamping electromagnetic valve 5 are connected in parallel and then connected with the clamping oil cylinder 10, the rotary control proportional electromagnetic valve 6 is connected with the rotary motor 12, and the pilot pump 11 is connected with the control signal end of the main control valve 9 through the pile driving control proportional pilot valve 7. The other portions are the same as in example 1.
Operation control of the working apparatus 1 during non-vibration operation:
in the clamping nozzle control, the side a1 of the clamping electromagnetic valve 4 is electrified, the side a4 of the pile driving control proportional pilot valve 7 is electrified simultaneously (the side a1 is linked with the side a 4), the main control valve 9 works at the right position, working high-pressure oil enters a large cavity of the clamping oil cylinder 10 through the main control valve 9, the first one-way valve 3 and the left side of the clamping electromagnetic valve 4, and the clamping nozzle is clamped; similarly, the side b1 of the clamping solenoid valve 4 is electrified (the side b1 is also linked with the side a 4), and the clamping nozzle is released.
Rotation control: the side a3 of the rotary control proportional electromagnetic valve 6 is electrified, the side a4 of the pile-driving control proportional pilot valve 7 is electrified simultaneously (a3 is linked with a 4), the master control valve 9 works at the right position, working high-pressure oil enters the left side of the rotary motor 12 through the master control valve 9, the first one-way valve 3 and the left side of the rotary control proportional electromagnetic valve 6, and the rotary table of the working device 1 rotates clockwise; similarly, the side b3 of the rotary control proportional solenoid valve 6 is electrified (b3 is also linked with a 4), and the rotary disc of the working device 1 rotates anticlockwise; the rotation is controlled by an electric proportional solenoid valve, and when an electric proportional shifting piece on the pilot handle is operated, the accurate control of the rotation speed of the turntable can be realized by controlling the angle of shifting the electric proportional shifting piece, namely, the larger the angle shifted by the electric proportional shifting piece is, the faster the rotation speed is.
Control of the working apparatus 1 during vibration operation:
pile driving control: the b4 side of the pile control proportional pilot valve 7 is electrified, the pilot oil pushes the main control valve 9 to the left for working, the working oil directly enters the oil inlet of the vibration motor 15 through the left side of the main control valve 9 to realize main vibration control, and the return oil of the vibration motor 15 directly returns to the hydraulic oil tank 14 through an external pipeline.
Clamping control all the time: when the b4 side of the pile control proportional pilot valve 7 is electrified, the pile driving action is realized at the moment, meanwhile, the a2 side of the clamping electromagnetic valve 5 is always electrified (the a2 and the b4 are linked), high-pressure working oil from the left side of the main control valve 9 is divided into one path, the one path flows into the large cavity of the clamping oil cylinder 10 through the second one-way valve 16, the clamping electromagnetic valve 5 and the third one-way valve 17 all the time, and the large cavity of the clamping oil cylinder 10 is always communicated with the high-pressure oil phase when the vibration motor 15 works, so that the steel sheet pile is clamped by the maximum clamping force, and the overflow valve 8 plays a role in overload.
Claims (4)
1. The utility model provides a pile driver is with proportion integration hydraulic control system which characterized in that: including equipment (1), integrated proportional control valves (2), main control valve (9), pilot pump (11) and main pump (13), main pump (13) are connected with equipment (1) through main control valve (9) and integrated proportional control valves (2), pilot pump (11) are connected with the control signal end of main control valve (9) through integrated proportional control valves (2).
2. The proportional integrated hydraulic control system for a pile driver of claim 1, wherein: the integrated proportional control valve group (2) comprises a clamping electromagnetic valve (4), a clamping electromagnetic valve (5), a rotary control proportional electromagnetic valve (6) and a piling control proportional pilot valve (7), an oil port A of a main control valve (9) is respectively connected with the clamping electromagnetic valve (4), the clamping electromagnetic valve (5), the rotary control proportional electromagnetic valve (6) and a working device (1), and an oil port B is respectively connected with the clamping electromagnetic valve (4), the clamping electromagnetic valve (5) and the rotary control proportional electromagnetic valve (6) through a first check valve (3).
3. The proportional integrated hydraulic control system for a pile driver of claim 2, wherein: the working device (1) comprises a clamping oil cylinder (10), a rotary motor (12) and a vibration motor (15).
4. The proportional integrated hydraulic control system for a pile driver of claim 3, wherein: the clamping electromagnetic valve (4) and the all-time clamping electromagnetic valve (5) are connected in parallel and then connected with the clamping oil cylinder (10), the rotary control proportional electromagnetic valve (6) is connected with the rotary motor (12), and the pilot pump (11) is connected with the control signal end of the main control valve (9) through the pile driving control proportional pilot valve (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022180136.9U CN213360666U (en) | 2020-09-28 | 2020-09-28 | Proportional integrated hydraulic control system for pile driver |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022180136.9U CN213360666U (en) | 2020-09-28 | 2020-09-28 | Proportional integrated hydraulic control system for pile driver |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339342A (en) * | 2021-06-08 | 2021-09-03 | 山东临工工程机械有限公司 | Pile driver assists utensil hydraulic system and hydraulic pile driver |
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- 2020-09-28 CN CN202022180136.9U patent/CN213360666U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339342A (en) * | 2021-06-08 | 2021-09-03 | 山东临工工程机械有限公司 | Pile driver assists utensil hydraulic system and hydraulic pile driver |
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