CN210531261U - Hydraulic control system for vibration station and vibration table - Google Patents
Hydraulic control system for vibration station and vibration table Download PDFInfo
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- CN210531261U CN210531261U CN201921666791.6U CN201921666791U CN210531261U CN 210531261 U CN210531261 U CN 210531261U CN 201921666791 U CN201921666791 U CN 201921666791U CN 210531261 U CN210531261 U CN 210531261U
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Abstract
The utility model discloses a vibration station hydraulic control system and a vibration platform, wherein, the vibration station hydraulic control system comprises an oil tank, a lift cylinder control loop, a clamping cylinder control loop, a first sequence valve and a second sequence valve; the first sequence valve is communicated with a third hydraulic control port of the first branch oil way and the second hydraulic control reversing valve so as to lead the third branch oil way to be communicated with the oil inlet pipe; the second sequence valve is communicated with the fourth oil distribution channel and a second hydraulic control port of the first hydraulic control reversing valve so as to enable the second oil distribution channel to be communicated with the oil inlet pipe. The utility model discloses technical scheme realizes that lift cylinder does the order linkage that the withdrawal action was just done to the clamp cylinder after the withdrawal action, and the clamp cylinder is done and is stretched out the order linkage that the action was just done to lift cylinder after the action.
Description
Technical Field
The utility model relates to a vibration control technical field, in particular to station hydraulic control system vibrates and platform vibrates.
Background
The vibrating table is a common device on a PC (Precast Concrete) production line, and after the Concrete is distributed, the vibrating table needs to be vibrated to achieve the purposes of discharging excess air in the Concrete, leveling and tightly falling the surface of the Concrete, and the like.
The vibrating platform is generally composed of a lifting wheel conveying system and a plurality of mutually independent vibrating frames. The lifting wheel conveying system comprises a plurality of lifting wheels, the lifting wheels can drive the die table to rise or fall under the action of the lifting oil cylinder, when the lifting wheels rise, the height of the lifting wheels is the same as that of other fixed wheels on the PC production line, the die table is not in contact with the vibrating frame and can be transported on the production line; when the lifting wheel descends, the mould platform is placed on the vibrating frame, and the vibrating motor drives the mould platform to vibrate, so that the vibrating operation of concrete is realized. In the vibrating process, the clamping oil cylinder is required to control the clamping device to clamp the die table so as to achieve a better vibrating effect, and in the transporting and lifting processes of the die table, the clamping device is required to be loosened, otherwise the die table or equipment is possibly damaged. Therefore, the action sequence of the hydraulic oil cylinder of the vibrating table is retraction of the lifting oil cylinder → retraction of the clamping oil cylinder → extension of the lifting oil cylinder.
In the related technology, two electromagnetic directional valves are respectively and correspondingly arranged for the lifting oil cylinder and the clamping oil cylinder for independent control, and the two electromagnetic directional valves are respectively operated manually according to a working sequence to control the action sequence of the two oil cylinders, so that the risk of action sequence errors is easily caused.
The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a station hydraulic control system vibrates, aims at realizing the order linkage of lift cylinder and clamping cylinder, improves the accuracy of action order.
In order to achieve the above object, the utility model provides a station hydraulic control system vibrates, include:
an oil tank having an oil inlet pipe and an oil return pipe;
the lifting oil cylinder control loop comprises a lifting oil cylinder, a first hydraulic control reversing valve and a first working oil path, wherein the first working oil path is communicated with the lifting oil cylinder and the first hydraulic control reversing valve, the first hydraulic control reversing valve is communicated with the oil inlet pipe and the first working oil path, and the first hydraulic control reversing valve is communicated with the oil return pipe and the first working oil path; the first working oil way comprises a first oil dividing way communicated with a rod cavity of the lifting oil cylinder and a second oil dividing way communicated with a rodless cavity of the lifting oil cylinder;
the clamping oil cylinder control loop comprises a clamping oil cylinder, a second hydraulic control reversing valve and a second working oil path, the second working oil path is communicated with the clamping oil cylinder and the second hydraulic control reversing valve, the second hydraulic control reversing valve is communicated with the oil inlet pipe and the second working oil path, and the second hydraulic control reversing valve is communicated with the oil return pipe and the second working oil path; the second working oil way comprises a third oil dividing way communicated with a rod cavity of the clamping oil cylinder and a fourth oil dividing way communicated with a rodless cavity of the clamping oil cylinder;
the first sequence valve is communicated with the first oil distribution passage and a third hydraulic control port of the second hydraulic control reversing valve so as to enable the third oil distribution passage to be communicated with the oil inlet pipe; and
and the second sequence valve is communicated with the fourth oil distribution way and a second hydraulic control port of the first hydraulic control reversing valve so as to enable the second oil distribution way to be communicated with the oil inlet pipe.
In an embodiment of the present invention, the oil-feeding device further includes a switching control loop, the switching control loop includes a three-position four-way valve and a third working oil path, the three-position four-way valve communicates the oil-feeding pipe and the third working oil path, and the three-position four-way valve communicates the oil-returning pipe and the third working oil path; the third working oil way comprises a fifth oil dividing way and a sixth oil dividing way, and the fifth oil dividing way is communicated with the three-position four-way valve and a first hydraulic control port of the first hydraulic control reversing valve; and the sixth oil distribution path is communicated with the three-position four-way valve and a fourth hydraulic control port of the second hydraulic control reversing valve.
In an embodiment of the present invention, the three-position four-way valve is a three-position four-way solenoid valve.
In an embodiment of the present invention, the second oil distribution path is connected in series with a first hydraulic lock, so as to maintain the pressure of the rodless cavity of the lift cylinder.
In an embodiment of the present invention, a second hydraulic lock is connected in series to the third oil dividing passage, so as to maintain the pressure of the rod chamber of the clamping cylinder.
The utility model discloses an in the embodiment, still include the oil pump, the oil pump establish ties in advance on the oil pipe.
The utility model discloses an in the embodiment, still include with the parallelly connected overflow valve of oil pump, the oil inlet of overflow valve with the oil-out intercommunication of oil pump, the oil-out of overflow valve with the oil tank intercommunication.
The utility model discloses an in the embodiment, still include the filter, the filter establish ties in advance oil pipe, and be located the oil pump with between the oil tank.
In an embodiment of the present invention, the hydraulic control system for the vibration station includes a plurality of lift cylinders and a plurality of clamping cylinders, and the plurality of lift cylinders are connected in parallel and then connected in series with the first working oil path; and the plurality of clamping oil cylinders are connected in parallel and then are connected in series with the second working oil way.
In order to achieve the above object, the present invention further provides a vibrating table, which comprises a support, a lifting wheel, a clamping mechanism and the above hydraulic control system for vibrating station, wherein the clamping mechanism is arranged on the support, and the lifting cylinder is connected with the lifting wheel and drives the lifting wheel to move up and down; the clamping oil cylinder is connected with the clamping mechanism and drives the clamping mechanism to move in a clamping or loosening mode.
In the technical proposal of the utility model, a first hydraulic control reversing valve is communicated with an oil tank and a lifting oil cylinder, a second hydraulic control reversing valve is communicated with the oil tank and a clamping oil cylinder, when vibration is needed, the first hydraulic control reversing valve is controlled to communicate the first oil dividing passage with the oil inlet pipe and communicate the second oil dividing passage with the oil return pipe, so that the lifting oil cylinder retracts to drive the die table to descend, and because the first oil distribution passage is communicated with the third hydraulic control port of the second hydraulic control reversing valve through the first sequence valve, so that the clamping oil cylinder does not act before the lifting oil cylinder retracts to the proper position until the pressure in the system is higher than the set pressure of the first sequence valve, the first sequence valve is conducted to control the second hydraulic control reversing valve to communicate the third oil distribution passage with the oil inlet pipe and communicate the fourth oil distribution passage with the oil return pipe, so that the clamping oil cylinder retracts to clamp the die table, therefore, the sequential linkage function that the clamping oil cylinder does the retraction action after the lifting oil cylinder does the retraction action is realized; after the vibrating operation is finished, the second hydraulic control reversing valve is controlled to be communicated with the fourth oil distributing channel and the oil inlet pipe, the third oil distributing channel is communicated with the oil return pipe, the clamping oil cylinder stretches out to loosen the die table, the second sequence valve is communicated with the second hydraulic control port of the first hydraulic control reversing valve to control the first hydraulic control reversing valve to be communicated with the first oil distributing channel and the oil return pipe, the lifting oil cylinder does not move before the clamping oil cylinder stretches out, after the pressure in the system is known to be larger than the set pressure of the second sequence valve, the second sequence valve is communicated to control the first hydraulic control reversing valve to be communicated with the first oil distributing channel and the oil return pipe, the lifting oil cylinder stretches out to drive the die table to leave the vibrating frame, and sequential linkage of stretching out operation of the lifting oil cylinder after the clamping oil cylinder does stretching operation is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a hydraulic schematic diagram of an embodiment of the hydraulic control system of the vibration station of the present invention;
FIG. 2 is an enlarged view of a portion of the first pilot operated directional control valve of FIG. 1;
fig. 3 is an enlarged view of a portion of the second hydraulically controlled directional valve of fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
110 | |
| 120 | |
200 | Control loop of |
| 210 | |
220 | First hydraulic |
| 221 | First |
222 | Second |
| 223 | |
224 | |
| 230 | First |
231 | First |
| 232 | Second |
300 | Clamping |
| 310 | Clamping |
320 | Second hydraulic |
| 330 | Second |
321 | Third |
| 322 | Fourth |
323 | The |
| 324 | The |
331 | Third |
| 332 | Fourth |
400 | |
| 500 | |
600 | |
| 610 | Three-position four- |
620 | Third |
| 621 | Fifth oil-dividing |
622 | Sixth |
| 710 | First |
720 | Second |
| 800 | |
900 | Overflow valve |
| A00 | Filter |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a station hydraulic control system vibrates mainly improves to the flexible working sequence of the lift cylinder 210 in the platform that vibrates and the tight hydro-cylinder 310 of clamp. A lifting mechanism (not shown) in the vibrating table conveys the mould table to the position above the working station, the lifting oil cylinder 210 retracts to drive the mould table to descend so as to be contacted with a vibrating frame (not shown), the clamping oil cylinder 310 retracts to clamp the mould table, and then the mould table is driven to vibrate by a vibrating motor (not shown) so as to finish the vibrating operation of concrete; after the vibrating operation is completed, the clamping cylinder 310 is extended to release the mold table, and the lifting cylinder 210 is extended out of the lifting mold table to move upward to leave the vibrating frame, and then the vibrated mold table is conveyed to the next process step through the conveying system.
In the embodiment of the present invention, as shown in fig. 1, fig. 2 and fig. 3, the hydraulic control system for a vibrating station includes:
a fuel tank 100, said fuel tank 100 having an inlet pipe 110 and an outlet pipe 120;
the lift cylinder control circuit 200 comprises a lift cylinder 210, a first hydraulic control directional control valve 220 and a first working oil path 230, wherein the first working oil path 230 is communicated with the lift cylinder 210 and the first hydraulic control directional control valve 220, the first hydraulic control directional control valve 220 is communicated with the oil inlet pipe 110 and the first working oil path 230, and the first hydraulic control directional control valve 220 is communicated with the oil return pipe 120 and the first working oil path 230; the first working oil path 230 includes a first oil dividing path 231 communicating with a rod chamber of the lift cylinder 210 and a second oil dividing path 232 communicating with a rodless chamber of the lift cylinder 210; the first pilot operated directional valve 220 has a first pilot port 221 and a second pilot port 222.
The clamping cylinder control circuit 300 comprises a clamping cylinder 310, a second hydraulic control reversing valve 320 and a second working oil path 330, wherein the second working oil path 330 is communicated with the clamping cylinder 310 and the second hydraulic control reversing valve 320, the second hydraulic control reversing valve 320 is communicated with the oil inlet pipe 110 and the second working oil path 330, and the second hydraulic control reversing valve 320 is communicated with the oil return pipe 120 and the second working oil path 330; the second working oil path 330 includes a third branch oil path 331 communicating with the rod chamber of the clamping cylinder 310 and a fourth branch oil path 334 communicating with the rod-less chamber of the clamping cylinder 310; the second pilot operated directional valve 320 has a third pilot port 321 and a fourth pilot port 322.
A first sequence valve 400, wherein the first sequence valve 400 communicates the first branch oil passage 231 with the third hydraulic control port 321 of the second hydraulic control directional control valve 320, so that the third branch oil passage 331 communicates with the oil inlet pipe 110; and a second sequence valve 500, wherein the second sequence valve 500 communicates the fourth branch oil passage 332 with the second hydraulic control port 222 of the first hydraulic control directional valve 220, so that the second branch oil passage 232 is communicated with the oil inlet pipe 110.
The lift cylinder control circuit 200 is mainly used for controlling the extending and retracting actions of the lift cylinder 210, and the first hydraulic control directional valve 220 is connected to the oil tank 100 through the oil inlet pipe 110 and the oil return pipe 120, and is connected to the lift cylinder 210 through the first working oil path 230.
When the lift cylinder 210 needs to retract, the first hydraulic control directional valve 220 is located at the first working position 223, at this time, the first oil distribution passage 231 is communicated with the oil inlet pipe 110, the second oil distribution passage 232 is communicated with the oil return pipe 120, oil in the oil tank 100 sequentially passes through the oil inlet pipe 110, the first hydraulic control directional valve 220 and the first oil distribution passage 231 to a rod cavity of the lift cylinder 210, and simultaneously oil in a rodless cavity of the lift cylinder 210 sequentially passes through the second oil distribution passage 232, the first hydraulic control directional valve 220 and the oil return pipe 120 to return to the oil tank 100, so that a function of pushing a rod in the lift cylinder 210 to retract inwards is achieved.
When the lift cylinder 210 needs to extend, the first hydraulic control directional control valve 220 is located at the second working position 224, at this time, the first oil distribution path 231 is communicated with the oil return pipe 120, the second oil distribution path 232 is communicated with the oil inlet pipe 110, oil in the oil tank 100 sequentially passes through the oil inlet pipe 110, the first hydraulic control directional control valve 220 and the second oil distribution path 232 to a rodless cavity of the lift cylinder 210, and simultaneously, oil in a rod cavity of the lift cylinder 210 sequentially passes through the first oil distribution path 231, the first hydraulic control directional control valve 220 and the oil return pipe 120 to return to the oil tank 100, so that a function of pushing a rod in the lift cylinder 210 to extend outwards is achieved.
The clamping cylinder control circuit 300 is mainly used for controlling the extending and retracting actions of the clamping cylinder 310, and the second hydraulic control directional valve 320 is connected with the oil tank 100 through the oil inlet pipe 110 and the oil return pipe 120, and is connected with the clamping cylinder 310 through a second working oil path 330.
When the clamping cylinder 310 needs to retract, the second hydraulic control directional valve 320 is located at the third working position 323, at this time, the third oil dividing path 331 is communicated with the oil inlet pipe 110, the fourth oil dividing path 332 is communicated with the oil return pipe 120, oil in the oil tank 100 sequentially passes through the oil inlet pipe 110, the second hydraulic control directional valve 320 and the third oil dividing path 331 to a rod cavity of the clamping cylinder 310, and simultaneously oil in a rodless cavity of the clamping cylinder 310 sequentially passes through the fourth oil dividing path 332, the second hydraulic control directional valve 320 and the oil return pipe 120 to return to the oil tank 100, so that a function of pushing a rod in the clamping cylinder 310 to retract inwards is achieved.
When the clamping cylinder 310 needs to extend, the second hydraulic control directional control valve 320 is located at the fourth working position 324, at this time, the third oil dividing path 331 is communicated with the oil return pipe 120, the fourth oil dividing path 332 is communicated with the oil inlet pipe 110, oil in the oil tank 100 sequentially passes through the oil inlet pipe 110, the second hydraulic control directional control valve 320 and the fourth oil dividing path 332 to a rodless cavity of the clamping cylinder 310, and simultaneously oil in a rod cavity of the clamping cylinder 310 sequentially passes through the third oil dividing path 331, the second hydraulic control directional control valve 320 and the oil return pipe 120 to return to the oil tank 100, so that a function of pushing a rod in the clamping cylinder 310 to retract inwards is achieved.
The first sequence valve 400 is communicated with the first oil distribution channel 231 and the fourth hydraulic control port 322 of the second hydraulic control reversing valve 320, when the lifting cylinder 210 retracts to drive the mold table to descend, because the set pressure of the first sequence valve 400 is greater than the maximum required pressure for retracting the lifting cylinder 210, the clamping cylinder 310 does not work at the moment, when the lifting cylinder 210 retracts to the right position, the system pressure continues to rise, when the pressure is greater than the set pressure of the first sequence valve 400, the first sequence valve 400 is conducted, the pressure oil enters the fourth hydraulic control port 322 of the second hydraulic control reversing valve 320, the second hydraulic control reversing valve 320 is located at the third working position 323, and the clamping cylinder 310 retracts to lock the mold table, so that the sequential linkage function that the clamping cylinder 310 retracts after the lifting cylinder 210 retracts is realized.
After vibrating, the clamping cylinder 310 extends to open the die table, because the set pressure of the second sequence valve 500 is greater than the maximum required pressure of the clamping cylinder 310, the lifting cylinder 210 does not work, when the clamping cylinder 310 extends to a position, the system pressure continues to rise, when the pressure is greater than the set pressure of the second sequence valve 500, the second sequence valve 500 is conducted, pressure oil enters the second hydraulic control port 222 of the first hydraulic control reversing valve 220, the first hydraulic control reversing valve 220 is located at the second working position 224, and the lifting cylinder 210 extends to lift the die table, so that the sequential linkage function that the lifting cylinder 210 extends after the clamping cylinder 310 extends to work is realized.
It will be appreciated that the retraction of the lift cylinder 210 and clamp cylinder 310 prior to tamping and the extension of the lift cylinder 210 and clamp cylinder 310 after tamping may be independent of each other, provided that the retraction prior to tamping is ensured to be linked in sequence or the extension after tamping is ensured to be linked in sequence. When the lift cylinder 210 needs to retract, the pressure oil required at the first hydraulic control port 221 of the first hydraulic control directional control valve 220 may be supplied to the oil tank 100, or may be supplied through an external oil supply system. Similarly, when the clamping cylinder 310 needs to be extended, the pressure oil required by the third hydraulic control port 321 of the second hydraulic control directional valve 320 can be supplied to the oil tank 100, or can be supplied through an external oil supply system.
In the technical scheme of the utility model, the first hydraulic control directional control valve 220 communicates the oil tank 100 and the lift cylinder 210, the second hydraulic control directional control valve 320 communicates the oil tank 100 and the clamping cylinder 310, when vibration is needed, the first hydraulic control directional control valve 220 is controlled to communicate the first oil distribution channel 231 with the oil inlet pipe 110, the second oil distribution channel 232 with the oil return pipe 120, so that the lift cylinder 210 does retraction action to drive the mold table to descend, and because the first oil distribution channel 231 is communicated with the third hydraulic control port 321 of the second hydraulic control directional control valve 320 through the first sequence valve 400, the clamping cylinder 310 is not operated before the lift cylinder 210 retracts in place, until the pressure in the system is greater than the set pressure of the first sequence valve 400, the first sequence valve is conducted 400 to control the second hydraulic control directional control valve 320 to communicate the third oil distribution channel 331 with the oil inlet pipe 110, the fourth oil distribution channel 332 is communicated with the oil return pipe 120, so that the clamping cylinder 310 does retraction action to clamp the mold table, thereby realizing the sequential linkage function that the clamping cylinder 310 does the retracting action after the lifting cylinder 210 does the retracting action; after vibrating, the second hydraulic control directional control valve 320 is controlled to communicate the fourth oil distribution passage 332 with the oil inlet pipe 110 and communicate the third oil distribution passage 331 with the oil return pipe 120, so that the clamping cylinder 310 extends to loosen the die table, and since the fourth oil distribution passage 332 is communicated with the second hydraulic control port 222 of the first hydraulic control directional control valve 220 through the second sequence valve 500, the lifting cylinder 210 is not operated before the clamping cylinder 310 extends to the proper position, and after knowing that the pressure in the system is higher than the set pressure of the second sequence valve 500, the second sequence valve is communicated 500 to control the first hydraulic control directional control valve 220 to communicate the first oil distribution passage 231 with the oil return pipe 120 and communicate the second oil distribution passage 232 with the oil inlet pipe 110, so that the lifting cylinder 210 extends to drive the die table to leave the vibrating frame, thereby realizing the sequential linkage function that the lifting cylinder 210 extends after the clamping cylinder 310 extends.
Further, referring to fig. 1, the hydraulic control system for the vibrating station further includes a switching control circuit 600, the switching control circuit 600 includes a three-position four-way valve 610 and a third working oil path 620, the three-position four-way valve 610 communicates the oil inlet pipe 110 with the third working oil path 620, and the three-position four-way valve 610 communicates the oil return pipe 120 with the third working oil path 620; the third working oil path 620 includes a fifth oil path 621 and a sixth oil path 622, and the fifth oil path 621 communicates the three-position four-way valve 610 with the first hydraulic control port 221 of the first hydraulic control directional control valve 220; the sixth oil distribution passage 622 communicates the three-position four-way valve 610 with the fourth hydraulic control port 322 of the second hydraulic control directional control valve 320.
The switching control circuit 600 mainly switches the actions before and after the vibration operation:
before the vibrating operation, the three-position four-way valve 610 is controlled to communicate the fifth oil dividing passage 621 with the oil inlet pipe 110, so that the oil in the oil tank 100 can reach the first hydraulic control port 221 to control the first hydraulic control directional valve 220 to be switched to the first working position 223 for operation, and further, after the lifting oil cylinder 210 retracts to drive the die table to descend to be in contact with the vibrating frame, the clamping oil cylinder 310 retracts to clamp the die table.
After the vibrating operation is finished, the three-position four-way valve 610 is controlled to communicate the sixth oil distributing passage 622 with the oil inlet pipe 110, so that the oil in the oil tank 100 can reach the fourth hydraulic control port 322 to control the second hydraulic control reversing valve 320 to be switched to the fourth working position 324 for working, and the lifting oil cylinder 210 does the extending action to drive the die table to ascend and leave the vibrating frame after the clamping oil cylinder 310 extends out and releases the die table.
In practical applications, the specific structure of the three-position four-way valve 610 may be determined according to practical situations, such as a three-position four-way solenoid valve, a three-position four-way hydraulic control valve, or a three-position four-way electro-hydraulic valve. In the embodiment of the present invention, in consideration of convenience of control, it is preferable to use a three-position four-way solenoid valve.
In an embodiment of the present invention, referring to fig. 1, a first hydraulic lock 710 is connected in series to the second oil distribution path 232 to maintain the pressure of the rodless cavity of the lift cylinder 210. After the vibration is finished, the lifting oil cylinder 210 stretches out to drive the die table to ascend and leave the vibrating frame, then the die table can be transported away from the vibrating station through the conveying system, and in the transportation process, in order to prevent the lifting oil cylinder 210 from retracting and interfering, the first hydraulic lock 710 is arranged on the second oil distribution way 232 to maintain the pressure of the rodless cavity of the lifting oil cylinder 210, so that the phenomenon that the rod of the lifting oil cylinder 210 retracts is avoided.
In an embodiment of the present invention, referring to fig. 1, a second hydraulic lock 720 is connected in series to the third oil dividing path 331 to maintain the pressure of the rod chamber of the clamping cylinder 310. In the vibrating process, the clamping cylinder 310 is in a retracting state, and at this time, in order to prevent the clamping cylinder 310 from being loosened in the vibrating process, the second hydraulic lock 720 is arranged on the third oil dividing path 331 so as to maintain pressure in the rod cavity of the clamping cylinder 310 and avoid the phenomenon that the rod of the clamping cylinder 310 extends out.
In an embodiment of the present invention, referring to fig. 1, the hydraulic control system further includes an oil pump 800, and the oil pump 800 is connected in series to the oil inlet pipe 110. The main function of oil pump 800 is to provide power for supplying oil, so that the oil in oil tank 100 can smoothly enter into each control valve and actuator.
In an embodiment of the present invention, referring to fig. 1, the hydraulic control system further includes an overflow valve 900 connected in parallel to the oil pump 800, an oil inlet of the overflow valve 900 is communicated with an oil outlet of the oil pump 800, and an oil outlet of the overflow valve 900 is communicated with the oil tank 120. The relief valve 900 mainly functions to ensure the pumping pressure of the oil pump 800 and to stabilize the pressure.
In an embodiment of the present invention, referring to fig. 1, the hydraulic control system further includes a filter a00, the filter a00 is connected in series to the oil inlet pipe 110 and is located between the oil pump 800 and the oil tank 100. Filter a00 mainly serves as a filter to prevent impurities from entering oil pump 800 and damaging oil pump 800.
Further, referring to fig. 1, the hydraulic control system for the vibrating station includes a plurality of lift cylinders 210 and a plurality of clamping cylinders 310, and after being connected in parallel, the plurality of lift cylinders 210 are connected in series with the first working oil path 230; the plurality of clamping cylinders 310 are connected in parallel and then connected in series to the second hydraulic fluid passage 330. The plurality of lift cylinders 210 are connected in parallel and then connected in series with the first working oil path 230, so that the plurality of lift cylinders 210 can act simultaneously, and the die table is more stable in the ascending or descending process. After being connected in parallel, the clamping cylinders 310 are connected in series with the second working oil path 330, so that the clamping cylinders 310 can act simultaneously, the die table can receive clamping forces at different positions, and the die table is more stable in the vibrating process.
The utility model also provides a platform vibrates, this platform vibrates include support (not shown), lifting wheel (not shown), clamping mechanism (not shown) and the station hydraulic control system vibrates, and this station hydraulic control system vibrates's concrete structure refers to above-mentioned embodiment, because this platform vibrates has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is not repeated here one by one again. Wherein, the clamping mechanism is arranged on the bracket, and the lifting oil cylinder 210 is connected with the lifting wheel and drives the lifting wheel to move up and down; the clamping cylinder 310 is connected to the clamping mechanism and drives the clamping mechanism to move in a clamping or unclamping motion.
The lifting wheels convey the mould platform to the position above the vibrating station, the lifting oil cylinder 210 drives the lifting wheels to move downwards to drive the mould platform to move downwards to be in contact with the vibrating frame, then the clamping oil cylinder 310 drives the clamping mechanism to clamp the mould platform, and the mould platform is vibrated by a vibrating motor (not shown); after vibrating, the clamping cylinder 310 drives the clamping mechanism to loosen the die table, the lifting cylinder 210 drives the lifting wheels to move upwards to drive the die table to leave the vibrating frame, and then the lifting wheels convey the vibrated die table away.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A hydraulic control system for a vibration station, comprising:
an oil tank having an oil inlet pipe and an oil return pipe;
the lifting oil cylinder control loop comprises a lifting oil cylinder, a first hydraulic control reversing valve and a first working oil path, wherein the first working oil path is communicated with the lifting oil cylinder and the first hydraulic control reversing valve, the first hydraulic control reversing valve is communicated with the oil inlet pipe and the first working oil path, and the first hydraulic control reversing valve is communicated with the oil return pipe and the first working oil path; the first working oil way comprises a first oil dividing way communicated with a rod cavity of the lifting oil cylinder and a second oil dividing way communicated with a rodless cavity of the lifting oil cylinder;
the clamping oil cylinder control loop comprises a clamping oil cylinder, a second hydraulic control reversing valve and a second working oil path, the second working oil path is communicated with the clamping oil cylinder and the second hydraulic control reversing valve, the second hydraulic control reversing valve is communicated with the oil inlet pipe and the second working oil path, and the second hydraulic control reversing valve is communicated with the oil return pipe and the second working oil path; the second working oil way comprises a third oil dividing way communicated with a rod cavity of the clamping oil cylinder and a fourth oil dividing way communicated with a rodless cavity of the clamping oil cylinder;
the first sequence valve is communicated with the first oil distribution passage and a third hydraulic control port of the second hydraulic control reversing valve so as to enable the third oil distribution passage to be communicated with the oil inlet pipe; and
and the second sequence valve is communicated with the fourth oil distribution way and a second hydraulic control port of the first hydraulic control reversing valve so as to enable the second oil distribution way to be communicated with the oil inlet pipe.
2. The hydraulic vibration station control system according to claim 1, further comprising a switching control circuit, wherein the switching control circuit comprises a three-position four-way valve and a third working oil path, the three-position four-way valve communicates the oil inlet pipe and the third working oil path, and the three-position four-way valve communicates the oil return pipe and the third working oil path; the third working oil way comprises a fifth oil dividing way and a sixth oil dividing way, and the fifth oil dividing way is communicated with the three-position four-way valve and a first hydraulic control port of the first hydraulic control reversing valve; and the sixth oil distribution path is communicated with the three-position four-way valve and a fourth hydraulic control port of the second hydraulic control reversing valve.
3. The system of claim 2, wherein the three-position, four-way valve is a three-position, four-way solenoid valve.
4. A hydraulic control system for a vibrating station according to any one of claims 1 to 3, wherein a first hydraulic lock is connected in series to the second branch passage to maintain pressure in the rodless chamber of the lift cylinder.
5. A hydraulic control system for a vibrating station according to any one of claims 1 to 3, wherein a second hydraulic lock is connected in series to the third oil dividing passage to maintain pressure in the rod chamber of the clamping cylinder.
6. A hydraulic control system for a vibrating station according to any one of claims 1 to 3, further comprising an oil pump connected in series to the oil inlet pipe.
7. The hydraulic vibration station control system according to claim 6, further comprising an overflow valve connected in parallel with the oil pump, an oil inlet of the overflow valve being communicated with an oil outlet of the oil pump, and an oil outlet of the overflow valve being communicated with the oil tank.
8. The system of claim 6, further comprising a filter connected in series with the oil feed tube and located between the oil pump and the oil tank.
9. The hydraulic control system for the vibrating station according to any one of claims 1 to 3, wherein the hydraulic control system for the vibrating station comprises a plurality of lifting cylinders and a plurality of clamping cylinders, and the plurality of lifting cylinders are connected in parallel and then connected in series with the first working oil path; and the plurality of clamping oil cylinders are connected in parallel and then are connected in series with the second working oil way.
10. A vibrating table, comprising:
a support;
a lifting wheel;
the clamping mechanism is arranged on the bracket; and
the hydraulic control system is as claimed in any one of claims 1 to 9, and the lifting oil cylinder is connected with the lifting wheel and drives the lifting wheel to move up and down; the clamping oil cylinder is connected with the clamping mechanism and drives the clamping mechanism to move in a clamping or loosening mode.
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| CN201921666791.6U CN210531261U (en) | 2019-09-30 | 2019-09-30 | Hydraulic control system for vibration station and vibration table |
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| CN201921666791.6U CN210531261U (en) | 2019-09-30 | 2019-09-30 | Hydraulic control system for vibration station and vibration table |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI755182B (en) * | 2020-12-02 | 2022-02-11 | 武漢機械股份有限公司 | Energy-saving hydraulic system |
| CN114151397A (en) * | 2021-11-08 | 2022-03-08 | 上海中联重科桩工机械有限公司 | Sleeve clamping device and full-sleeve full-slewing drilling machine |
-
2019
- 2019-09-30 CN CN201921666791.6U patent/CN210531261U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI755182B (en) * | 2020-12-02 | 2022-02-11 | 武漢機械股份有限公司 | Energy-saving hydraulic system |
| CN114151397A (en) * | 2021-11-08 | 2022-03-08 | 上海中联重科桩工机械有限公司 | Sleeve clamping device and full-sleeve full-slewing drilling machine |
| CN114151397B (en) * | 2021-11-08 | 2024-04-09 | 上海中联重科桩工机械有限公司 | Casing clamping device and full casing full-circle drilling machine |
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