CN209041230U - Tower crane jacks hydraulic power system - Google Patents
Tower crane jacks hydraulic power system Download PDFInfo
- Publication number
- CN209041230U CN209041230U CN201821819367.6U CN201821819367U CN209041230U CN 209041230 U CN209041230 U CN 209041230U CN 201821819367 U CN201821819367 U CN 201821819367U CN 209041230 U CN209041230 U CN 209041230U
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- mouthfuls
- hydraulic power
- tower crane
- power system
- fuel tank
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Abstract
The utility model provides a kind of tower crane jacking hydraulic power system comprising has: fuel tank, reversal valve, executing agency and oil pressure monitoring alarm.Fuel feeding motor pump group, fuel feeding motor pump group include motor and oil pump, and motor driven oil pump rotates, and the import of oil pump is connected with fuel tank.Reversal valve is three-position four-way valve, and three-position four-way valve includes A mouthfuls, B mouthfuls, P mouthfuls and T mouthfuls, and P mouthfuls are connected with the outlet of oil pump, and T mouthfuls are connected with fuel tank.Executing agency includes the piston piece of first chamber, second chamber and isolation first chamber, second chamber, and A mouthfuls are connected with first chamber, and B mouthfuls are connected with second chamber.Oil pressure monitoring alarm is for monitoring oil pressure and sounding an alarm, on the pipeline that the outlet that oil pressure monitoring alarm is installed on oil pump is connected with P mouthfuls.This system can monitor in time oil pressure faults and alarm rapidly, to remind operator to handle.
Description
Technical field
The utility model relates to a kind of tower cranes to jack hydraulic power system.
Background technique
During tower crane is built, dismantled, tower crane jacking hydraulic power system is usually used in completing heavy duty jacking, heavy duty
Decline, empty three kinds of different work of stopper rod of accepting orders for repairs or processing.Because tower crane volume is larger, heavier-weight, smoothly to realize that jacking need to be using big
The fuel feeding motor pump group of power improves power.In the actual operation process, tower is be easy to cause because fuel feeding motor pump group power is excessive
It is unstable that machine jacks oil pressure in hydraulic power system, if the power for adjusting fuel feeding motor pump group not in time may cause pipeline oil and press through
Height will cause pipe breakage in the case where superelevation oil pressure, generate safety accident.The existing way for solving the problems, such as this is in pipe
Road installation pressure gauge, to detect the oil pressure of oil circuit.But the defect of this mode is, operator is needed at every moment to dig-in
The reading of pressure gauge, so that oil pressure problem occurs in time.This detection mode is time-consuming and laborious, manpower is caused to waste.
Utility model content
The technical problems to be solved in the utility model is to overcome tower crane jacking hydraulic power system in the prior art
The time-consuming and laborious defect of the mode of middle detection oil pressure provides a kind of tower crane jacking hydraulic power system convenient for detecting oil pressure.
The utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of tower crane jacking hydraulic power system, it is characterized in that comprising have:
Fuel tank；
Fuel feeding motor pump group, the fuel feeding motor pump group include motor and oil pump, and oil pump described in the motor driven rotates,
The import of the oil pump is connected with the fuel tank；
Reversal valve, the reversal valve are three-position four-way valve, and the three-position four-way valve includes A mouthfuls, B mouthfuls, P mouthfuls and T mouthfuls, described
P mouthfuls are connected with the outlet of the oil pump, and described T mouthfuls is connected with the fuel tank；When the reversal valve is located at left position, the A
Mouth is connected with described P mouthfuls, and described B mouthfuls is connected with described T mouthfuls；When the reversal valve is located at middle position, A mouthfuls described, the described B
Mouthful, it is described P mouthful and it is described T mouthfuls it is interconnected；When the reversal valve is located at right position, described A mouthfuls is connected with described T mouthfuls, the B
Mouth is connected with described P mouthfuls；
Executing agency, the executing agency include first chamber, second chamber and the isolation first chamber, described second
The piston piece of chamber, described A mouthfuls is connected with the first chamber, and described B mouthfuls is connected with the second chamber；With
Oil pressure monitoring alarm, the oil pressure monitoring alarm is for monitoring oil pressure and sounding an alarm, the oil pressure monitoring
On the pipeline that the outlet that alarm is installed on the oil pump is connected with described P mouthfuls.
Preferably, the reversal valve is switched equipped with manual reverse of direction.
In the present solution, manual reverse of direction switch is easy to operate, securely and reliably.
Preferably, the tower crane jacking hydraulic power system further includes balanced valve, described B mouthfuls is connected to by the balanced valve
In the second chamber, the balanced valve includes load port and low pressure port, and the load port is connected with the second chamber, institute
Low pressure port is stated to be connected with described B mouthfuls.
In the present solution, balanced valve can generate back pressure, make movement steady.
Preferably, the tower crane jacking hydraulic power system further includes low pressure relief valve, one end of the low pressure relief valve
It is connected on the pipeline that the low pressure port is connected with described B mouthfuls, the other end of the low pressure relief valve is connected with the fuel tank
It is logical.
In the present solution, the oil circuit that low pressure relief valve is used to prevent low pressure port from leading to fuel tank occurs unexpected when B mouthfuls of drainings
When load causes oil return unsmooth, timely draining decompression；When B mouthfuls of oil inlets, low pressure relief valve is for controlling input pressure, to guarantee
Heavily loaded slowly decline.
Preferably, the tower crane jacking hydraulic power system further includes high-pressure overflow valve, one end of the high-pressure overflow valve
It is connected on the pipeline that the outlet of the oil pump is connected with described P mouthfuls, the other end of the high-pressure overflow valve and the fuel tank
It is connected.
In the present solution, high-pressure overflow valve is used to control the oil pressure exported from oil pump, guarantee oil pressure is stablized.
Preferably, the tower crane jacking hydraulic power system further includes safety valve, one end of the safety valve is connected to institute
It states on the pipeline that the outlet of oil pump is connected with described P mouthfuls, the other end of the safety valve is connected with the fuel tank.
When in the present solution, safety valve is used to prevent the oil outlet pipe of oil pump from unexpected high pressure occur, timely draining decompression.
Preferably, the tower crane jacking hydraulic power system further includes alarming for detecting the oil temperature of oil temperature in the fuel tank
Device, the oil temperature alarm are installed on the fuel tank.
It is sounded an alarm in time when in the present solution, oil temperature alarm is in high oil temperature, to carry out cooling operation in time.
Preferably, the tower crane jacking hydraulic power system further includes the liquid level warning for detecting liquid level in the fuel tank
Device, the liquid level alarm are installed on the fuel tank.
It is sounded an alarm in time when in the present solution, liquid level of the liquid level alarm in fuel tank is too low, in order to timely repairing.
Preferably, the tower crane jacking hydraulic power system further includes liquidometer, the liquidometer is for showing the oil
Liquid level in case, the liquidometer are installed on the fuel tank.
In the present solution, liquidometer is used to observe the specific liquid level amount in fuel tank.
Preferably, the tower crane jacking hydraulic power system further includes air cleaner, the air cleaner is installed on
On the fuel tank, the import of the oil pump connects the fuel tank by the air cleaner.
In the present solution, air cleaner can prevent dust, impurity in air from entering in fuel tank.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get the utility model respectively compared with
Good example.
The positive effect of the utility model is: in this system, when there is unexpected high pressure in oil pump output pipe, and oil
Pressure monitoring alarm can monitor that concurrent responding is responded in time and operator is reminded to carry out urgent decompression processing, avoid safe thing
Therefore.
Detailed description of the invention
Fig. 1 is the schematic perspective view that tower crane jacks hydraulic power system in the preferred embodiment in the utility model, wherein
Executing agency is removed.
Fig. 2 is the schematic view of the front view of Fig. 1 neutral body structure.
Fig. 3 is the left view structural representation of Fig. 1 neutral body structure, wherein fuel tank is removed.
Fig. 4 is the overlooking structure diagram of Fig. 1 neutral body structure.
Fig. 5 is the right side structural representation of Fig. 1 neutral body structure, wherein fuel tank is removed.
Fig. 6 is that the tower crane of the utility model preferred embodiment jacks the schematic diagram of hydraulic power system.
Description of symbols:
Fuel tank 10
Fuel feeding motor pump group 20
Motor 21
Oil pump 22
Reversal valve 30
A mouth 31
B mouth 32
P mouth 33
T mouth 34
Manual reverse of direction switch 35
Executing agency 40
First chamber 41
Second chamber 42
Piston piece 43
Oil pressure monitoring alarm 50
Balanced valve 60
Load port 61
Low pressure port 62
Low pressure relief valve 70
High-pressure overflow valve 80
Safety valve 90
Oil temperature alarm 100
Liquid level alarm 110
Liquidometer 120
Air cleaner 130
Filter 140
Electric cabinet 150
Specific embodiment
A preferred embodiment is named, and completely illustrates the utility model in conjunction with attached drawing to become apparent from.
Fig. 1-Fig. 6 shows a kind of tower crane jacking hydraulic power system comprising has: fuel tank 10, executes machine at reversal valve 30
Structure 40 and oil pressure monitoring alarm 50.Fuel feeding motor pump group 20, fuel feeding motor pump group 20 include motor 21 and oil pump 22, motor 21
Oil pump 22 is driven to rotate, the import of oil pump 22 is connected with fuel tank 10.Reversal valve 30 is three-position four-way valve, and three-position four-way valve includes
A mouth 31, B mouth 32, P mouth 33 and T mouth 34, P mouth 33 are connected with the outlet of oil pump 22, and T mouth 34 is connected with fuel tank 10.Reversal valve
30 be located at left position when, A mouth 31 is connected with P mouth 33, and B mouth 32 is connected with T mouth 34；When reversal valve 30 is located at middle position, A mouth 31, B
Mouth 32, P mouth 33 and T mouth 34 are interconnected；When reversal valve 30 is located at right position, A mouth 31 is connected with T mouth 34, B mouth 32 and P mouth 33
It is connected.Executing agency 40 includes the piston piece of first chamber 41, second chamber 42 and isolation first chamber 41, second chamber 42
It is connected with first chamber 41 for 43, A mouthful 31, B mouth 32 is connected with second chamber 42.Oil pressure monitoring alarm 50 is for monitoring oil
It presses and sounds an alarm, on the pipeline that the outlet that oil pressure monitoring alarm 50 is installed on oil pump 22 is connected with P mouth 33.
In the present embodiment, executing agency 40 is hydraulic cylinder, and first chamber 41 is rodless cavity, and second chamber 42 is to have bar
Chamber, piston piece 43 are piston rod.When reversal valve 30 is in left position, oil pump 22 is taken out under the driving of motor 21 from fuel tank 10 outward
Oil liquid, then oil liquid enters P mouth 33, A mouth 31, enters back into rodless cavity, and piston rod is pushed to move to rod chamber；At this time rod chamber into
Row oil return campaign, the oil liquid in rod chamber passes through B mouth 32, T mouth 34, then flows back into fuel tank 10.Above-mentioned oil circuit process is realized
The function of piston rod jacking heavy duty.When reversal valve 30 is in right position, oil pump 22 under the driving of motor 21 from fuel tank 10 to
Outer oil pumping liquid, then oil liquid enters P mouth 33, B mouth 32, enters back into rod chamber, and piston rod is pushed to move to rodless cavity；At this time without bar
Chamber carries out oil return campaign, and the oil liquid in rodless cavity passes through A mouth 31, T mouth 34, then flows back into fuel tank 10.Above-mentioned oil circuit process is
Realize the function of piston rod heavy load descending or unloaded decline.
Under weight load condition, if reversal valve 30 breaks down suddenly, it is easy to generate safety accident.The present embodiment
In, reversal valve 30 is hand-operated direction valve 30, and reversal valve 30 is equipped with manual reverse of direction switch 35.35 operation side of manual reverse of direction switch
Just, securely and reliably.
In practical applications, if load jacks, the speed for needing to jack can be slowly steady, avoid accelerating to cause suddenly
Accident.In the present solution, tower crane jacking hydraulic power system further includes balanced valve 60, B mouth 32 passes through balanced valve 60 and is connected to the
Two chambers 42, balanced valve 60 include load port 61 and low pressure port 62, and load port 61 is connected with second chamber 42, low pressure port 62 and
B mouth 32 is connected.When in load jacking state, rod chamber to realize oil return it has to be ensured that the oil pressure in rod chamber is not small
In the setting pressure of balanced valve 60, otherwise the oil circuit of rod chamber oil return is obstructed.And the pressure for being used to be connected balanced valve 60 just can
Enough control rod chamber is not in the case where rising rapidly suddenly, so that proof load jacking movement is steady.And when hydraulic cylinder needs
When wanting non-loaded rapid decrease, 60 pairs of the balanced valve oil liquid entered in rod chamber have no inhibition, hydraulic so as to guarantee
Cylinder realizes non-loaded rapid decrease.
In addition, tower crane jacking hydraulic power system further includes low pressure relief valve 70, one end of low pressure relief valve 70 is connected to
On the pipeline that low pressure port 62 is connected with B mouth 32, the other end of low pressure relief valve 70 is connected with fuel tank 10.When hydraulic cylinder is to having
Rod cavity movement, unexpected load, which occurs, in the oil return line that low pressure relief valve 70 is used to prevent low pressure port 62 from leading to fuel tank 10 leads to oil return
When unsmooth, timely draining decompression.When hydraulic cylinder is in heavy load descending state, low pressure relief valve 70 enters rod chamber for controlling
Interior oil pressure makes its oil pressure be not more than the setting pressure of low pressure relief valve 70, thus under guaranteeing hydraulic cylinder under heavy loads slowly
Drop.
In practical applications, motor 21 and oil pump 22, which match, is difficult to provide the stable oil pressure of setting, generally can all deposit
In the problem that oil pressure is excessively high or oil pressure is unstable.In the present embodiment, in order to guarantee input executing agency 40 oil pressure keep one
A stable setting pressure, tower crane jacking hydraulic power system further include high-pressure overflow valve 80, and one end of high-pressure overflow valve 80 connects
It is connected on the pipeline that the outlet of oil pump 22 is connected with P mouth 33, the other end of high-pressure overflow valve 80 is connected with fuel tank 10.If oily
The oil pressure of 22 output of pump is higher than the setting pressure of high-pressure overflow valve 80, then high-pressure overflow valve 80, which automatically opens, is depressured, to protect
Demonstrate,prove the setting pressure that output oil pressure is equal to high-pressure overflow valve 80.
In addition, tower crane jacking hydraulic power system further includes safety valve 90, one end of safety valve 90 is connected to oil pump 22
It exports on the pipeline being connected with P mouth 33, the other end of safety valve 90 is connected with fuel tank 10.Safety valve 90 is for preventing oil pump
When there is unexpected high pressure and the failure of high-pressure overflow valve 80 in 22 oil outlet pipe, timely draining decompression.The setting pressure of safety valve 90
Greater than the setting pressure of high-pressure overflow valve 80, when high-pressure overflow valve 80 can work normally, safety valve 90 does not work.
Tower crane jacking hydraulic power system further includes the oil temperature alarm 100 for detecting oil temperature in fuel tank 10, oil temperature report
Alert device 100 is installed on fuel tank 10.Oil temperature alarm 100 sounds an alarm in time in high oil temperature, to cool down in time
Operation.
Tower crane jacking hydraulic power system further includes the liquid level alarm 110 for detecting liquid level in fuel tank 10, liquid level report
Alert device 110 is installed on fuel tank 10.It is sounded an alarm in time when liquid level of the liquid level alarm 110 in fuel tank 10 is too low, in order to
Timely repairing.
Tower crane jacking hydraulic power system further includes liquidometer 120, and liquidometer 120 is used to show the liquid level in fuel tank 10,
Liquidometer 120 is installed on fuel tank 10.Liquidometer 120 is used to observe the specific liquid level amount in fuel tank 10.
It further includes air cleaner 130 that tower crane, which jacks hydraulic power system, and air cleaner 130 is installed on fuel tank 10,
The import of oil pump 22 connects fuel tank 10 by air cleaner 130.Air cleaner 130 can prevent dust in air, miscellaneous
Matter enters in fuel tank 10.
In addition, tower crane jacking hydraulic power system further includes filter 140, the both ends of filter 140 are separately connected fuel tank
10 and oil pump 22 import, for filtering out the impurity mixed in oil liquid.
Tower crane jacking hydraulic power system further includes electric cabinet 150, is equipped with control switch in electric cabinet 150 and (does not show in figure
Out), control switch is electrically connected to motor 21, and control switch is used to control the switch of motor 21.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and the protection scope of the utility model is defined by the appended claims.Those skilled in the art
Under the premise of without departing substantially from the principles of the present invention and essence, many changes and modifications may be made,
But these change and modification each fall within the protection scope of the utility model.
Claims (10)
1. a kind of tower crane jacks hydraulic power system, which is characterized in that it includes:
Fuel tank；
Fuel feeding motor pump group, the fuel feeding motor pump group include motor and oil pump, and the rotation of oil pump described in the motor driven is described
The import of oil pump is connected with the fuel tank；
Reversal valve, the reversal valve are three-position four-way valve, and the three-position four-way valve includes A mouthfuls, B mouthfuls, P mouthfuls and T mouthfuls, P mouthfuls described
It is connected with the outlet of the oil pump, described T mouthfuls is connected with the fuel tank；When the reversal valve is located at left position, described A mouthfuls with
Described P mouthfuls is connected, and described B mouthfuls is connected with described T mouthfuls；When the reversal valve is located at middle position, A mouthfuls described, described B mouthfuls, institute
P mouthfuls and described T mouthfuls are stated to be interconnected；When the reversal valve is located at right position, described A mouthfuls is connected with described T mouthfuls, described B mouthfuls with
Described P mouthfuls is connected；
Executing agency, the executing agency include first chamber, second chamber and the isolation first chamber, the second chamber
Piston piece, described A mouthfuls is connected with the first chamber, and described B mouthfuls is connected with the second chamber；With
Oil pressure monitoring alarm, the oil pressure monitoring alarm is for monitoring oil pressure and sounding an alarm, the oil pressure monitoring, alarming
On the pipeline that the outlet that device is installed on the oil pump is connected with described P mouthfuls.
2. tower crane as described in claim 1 jacks hydraulic power system, which is characterized in that the reversal valve is equipped with and changes manually
To switch.
3. tower crane as described in claim 1 jacks hydraulic power system, which is characterized in that the tower crane jacks hydraulic power system
System further includes balanced valve, and described B mouthfuls is connected to the second chamber by the balanced valve, the balanced valve include load port and
Low pressure port, the load port are connected with the second chamber, and the low pressure port is connected with described B mouthfuls.
4. tower crane as claimed in claim 3 jacks hydraulic power system, which is characterized in that the tower crane jacks hydraulic power system
System further includes low pressure relief valve, and one end of the low pressure relief valve is connected to the pipeline that the low pressure port is connected with described B mouthfuls
On, the other end of the low pressure relief valve is connected with the fuel tank.
5. tower crane as described in claim 1 jacks hydraulic power system, which is characterized in that the tower crane jacks hydraulic power system
System further includes high-pressure overflow valve, what the outlet that one end of the high-pressure overflow valve is connected to the oil pump was connected with described P mouthfuls
On pipeline, the other end of the high-pressure overflow valve is connected with the fuel tank.
6. tower crane as claimed in claim 5 jacks hydraulic power system, which is characterized in that the tower crane jacks hydraulic power system
System further includes safety valve, on the pipeline that the outlet that one end of the safety valve is connected to the oil pump is connected with described P mouthfuls, institute
The other end for stating safety valve is connected with the fuel tank.
7. tower crane as described in claim 1 jacks hydraulic power system, which is characterized in that the tower crane jacks hydraulic power system
System further includes the oil temperature alarm for detecting oil temperature in the fuel tank, and the oil temperature alarm is installed on the fuel tank.
8. tower crane as described in claim 1 jacks hydraulic power system, which is characterized in that the tower crane jacks hydraulic power system
System further includes the liquid level alarm for detecting liquid level in the fuel tank, and the liquid level alarm is installed on the fuel tank.
9. tower crane as described in claim 1 jacks hydraulic power system, which is characterized in that the tower crane jacks hydraulic power system
System further includes liquidometer, and the liquidometer is used to show the liquid level in the fuel tank, and the liquidometer is installed on the fuel tank.
10. tower crane as described in claim 1 jacks hydraulic power system, which is characterized in that the tower crane jacks hydraulic power
System further includes air cleaner, and the air cleaner is installed on the fuel tank, and the import of the oil pump passes through the sky
Air cleaner connects the fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821819367.6U CN209041230U (en) | 2018-11-06 | 2018-11-06 | Tower crane jacks hydraulic power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821819367.6U CN209041230U (en) | 2018-11-06 | 2018-11-06 | Tower crane jacks hydraulic power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209041230U true CN209041230U (en) | 2019-06-28 |
Family
ID=67041059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821819367.6U Active CN209041230U (en) | 2018-11-06 | 2018-11-06 | Tower crane jacks hydraulic power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209041230U (en) |
-
2018
- 2018-11-06 CN CN201821819367.6U patent/CN209041230U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 600, changta Road, Songjiang District, Shanghai, 201617 Patentee after: Shanghai shengkesisi Hydraulic Co.,Ltd. Address before: No. 600, changta Road, Songjiang District, Shanghai, 201600 Patentee before: SHANGHAI SUCCESS HYDRAULICS PRESS Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Hydraulic power system for tower crane jacking Effective date of registration: 20230105 Granted publication date: 20190628 Pledgee: Agricultural Bank of China Limited Shanghai Songjiang Sub-branch Pledgor: Shanghai shengkesisi Hydraulic Co.,Ltd. Registration number: Y2023980030417 |