CN110486343A - A kind of spiral push-bench drive hydraulic system principle - Google Patents
A kind of spiral push-bench drive hydraulic system principle Download PDFInfo
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- CN110486343A CN110486343A CN201910749366.1A CN201910749366A CN110486343A CN 110486343 A CN110486343 A CN 110486343A CN 201910749366 A CN201910749366 A CN 201910749366A CN 110486343 A CN110486343 A CN 110486343A
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- valve
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1086—Drives or transmissions specially adapted therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
Abstract
A kind of spiral push-bench drive hydraulic system principle, include: constant-pressure variable pump, pumping hole check valve, syncmotor, one-way throttle valve, hydraulic cylinder, the overflow valve, filter for forming hydraulic cylinder control loop, forms the counterbalance valve, hydraulic motor, composition heat-radiation loop heat exchange check valve, heat exchanger of motor control circuit；Improvements introduced is: the heat exchanger in heat-radiation loop moves to cylinder circuit filter and is installed in series on oil return box branch road.Load-sensitive formula proportional multi-path reversing valve is packed into hydraulic motor control loop and cylinder circuit；The element shares for two circuits.The positive effect of the present invention is: load-sensitive formula proportional multi-path reversing valve can control the direction of motion and speed of executive component, and the speed is not dependent on load, be able to achieve multiple executive components simultaneously, it is independent with friction speed and pressure duty, until the summation of flow reaches the flow of pump, when the flow needed for executive component is greater than the flow that hydraulic pump can be provided, system will give the assignment of traffic of hydraulic pump to each executive component pari passu, simplify hydraulic system composition, the movement relation for having coordinated executive component improves the efficiency and performance of hydraulic system.
Description
Technical field
The invention belongs to fluid pressure actuators, and in particular to spiral push-bench drive hydraulic system principle.
Background technique
As the Rapid Expansion and road of city domain increase, China's most cities existing rain dirt discharge of pipes pressure day
Benefit increases, and some is no longer satisfied discharge needs, needs to build or be transformed again.Using traditional pipe laying construction, exist
Long construction period, a large amount of repeated construction serious to road damage influence very big etc. drawbacks to urban transportation, environment.Therefore,
Urban Underground pipeline trenchless prop pipelining technique under low traffic impact is come into being.Spiral push-bench is existing small-bore pipe
The professional equipment of road laying construction, at present spiral push-bench complete production tube be laid with each step in, be required to linear motion and
The combination of two kinds of circular motion movements, linear motion generally realize that circular motion uses mechanical (electricity earliest using hydraulic cylinder
Machine+retarder) Lai Shixian due to jacking construction complex geologic conditions causes load changeable, and this load unevenness drives equipment
Moving cell impact is larger, and mechanical driving is easily damaged.With the raising of the manufacturing capacity and precision of Hydraulic Elements, the driving side
Formula is generally replaced by hydraulic motor driving method at present.
Existing spiral push-bench drive hydraulic system principle is as shown in Figure 1.Include three component units: hydraulic motor enclosed control
Circuit processed, system oil liquid heat-radiation loop, hydraulic cylinder control loop.
Hydraulic motor enclosed control loop: it is made of part 1 to part 12.Part 1 is constant flow formula variable pump, is returned for the enclosed
The dynamical element on road provides pressure oil for 11 hydraulic motor of part, and hydraulic pump inlet port is straight by pipeline with hydraulic motor oil discharge outlet
Connect connected, the oil liquid of hydraulic motor discharge is sent directly into hydraulic pump without the fuel tank that flows back, this is the essential characteristic of closed circuit.Part
2 for the coaxial concatenated gear pump of part 1, play the role of slippage pump in the circuit, mainly make up oil liquid through hydraulic motor
Flow loss (oil liquid that interior leakage and more oil valve including motor swap out) after work done.Part 3 is check valve, and protection pump is not rushed
It hits；Part 4 is circuit safety valve, protection system safety.Part 5 is overflow valve, sets the system pressure of repairing pump loop.Part 6.1 is
Multiple directional control valve is manually controlled, effect is the direction for controlling opening and closing and the positive and negative rotation of hydraulic motor.7 two check valves of part
Be balance valve action with part 8 it is to guarantee that hydraulic motor runs smoothly in closed circuit, does not occur revolving speed non-uniform phenomenon.Part 7
Effect is to prevent the outer impact for carrying variation to pump.Two overflow valves on 8 balanced valve of part are mainly when filtering out motor operation
Excessive impact keeps motor operation steady.The more oil valve of part 9 and 10 counterbalance valve collective effect of part are to guarantee have when motor operation enough
Back pressure, and circuit oil pressure be higher than counterbalance valve setting pressure when, by pressure oil off-load oil return box, while keeping low pressure pressure
Power.It is mainly used for releasing the hot oil in closed system.It is usually used in closed circuit, utilizes the pressure of high pressure chest and low pressure chamber
Difference carries out draining to closed system, main to play cooling heat spreading function.The effect of 12 filter of part is that motor oil liquid is filled into repairing
Filtration.
System oil liquid heat-radiation loop: it is made of part 13, part 14, part 15 etc..Part 13 be and the coaxial concatenated gear of part 1
Pump, part 14 are check valve, and part 15 is heat exchanger.The effect in the circuit is mainly that hydraulic motor closed circuit oil liquid temperature rise is larger,
The circuit is autonomous system heat-radiation loop.It can make the cooling for effectively realizing oil liquid.
Hydraulic cylinder control loop: it is made of part 16 to the elements such as part 21.Part 16 is constant-pressure axial variable piston pump, for this time
The power unit on road.Part 17 is pumping hole check valve, and for protection pump by the impact of outer loads, it is manual that part 6.2 acts on identical with part 6.1
Multiple directional control valve is controlled, effect is to control stretching motion and the start and stop of hydraulic cylinder.16 overflow valve of part is the circuit safety valve, protection
System element safety.Part 18 is syncmotor, and effect is to control the synchronous working of two hydraulic cylinders.Part 19 is one-way throttle valve, is made
With the speed for stretching and the contraction for being two oil cylinders of control.
The hydraulic system of above-mentioned spiral push-bench is controlled using closed circuit, and Driven by Hydraulic Cylinder uses open circuit control
System, two circuits are respectively driven using two hydraulic pumps, the two independent operating, need in actual operation device operator according to
Experience human intervention controls two kinds of movement combinations, but the speed that two kinds move and load easily occurs not in different geological conditions
There is a kind of move and has overloaded stopping in matching, and another movement also continues running, and tooling damage occurs, stratum local pressure is not
It caves in, the problems such as push pipe precision not can guarantee, seriously affects construction speed and quality.
Summary of the invention
The object of the present invention is to provide a kind of spiral push-bench drive hydraulic system principles, control for spiral push pipe machine operation,
Overcome existing hydraulic system above shortcomings,
The present invention includes: to form the constant-pressure variable pump of hydraulic cylinder control loop, pumping hole check valve, syncmotor, unidirectional
Throttle valve, hydraulic cylinder, overflow valve, filter, the counterbalance valve, hydraulic motor, composition heat-radiation loop for forming motor control circuit change
Hot check valve, heat exchanger；
Improvements introduced is: hydraulic cylinder control loop removes hand-operated direction valve, motor control circuit remove volume adjustable hydraulic pump,
Slippage pump, check valve, overflow valve, repairing overflow valve, hand-operated direction valve, check valve, balanced valve, more oil valve, filter, radiate back
Filter, hydraulic pump are removed in road, and heat exchanger moves to cylinder circuit filter and is installed in series on oil return box branch road.In hydraulic horse
Up to loading load-sensitive formula proportional multi-path reversing valve in control loop and cylinder circuit；The element shares for two circuits.
Load-sensitive formula proportional multi-path reversing valve in the hydraulic motor loop be mounted on pumping hole check valve with it is hydraulic
Between motor, specifically it is connected as the oil inlet of hydraulic motor and two oil circuits of oil return opening and load-sensitive formula proportional multi-path commutates
The integrated middle position of valve is that two output oil ports of the reversing slide valve of Y type are respectively connected with；Load-sensitive formula in the cylinder circuit
Proportional multi-path reversing valve is mounted between pumping hole check valve, heat exchanger and hydraulic cylinder, be specifically connected as hydraulic cylinder rod chamber and
The middle position that two oil circuits and load-sensitive formula proportional multi-path reversing valve of rodless cavity integrate is two outputs of O-shaped reversing slide valve
Hydraulic fluid port is respectively connected with, and oil circuit is connect with the valve precompensation device that load-sensitive formula proportional multi-path reversing valve integrates where pumping hole check valve
The ad hoc pressure oil oil inlet P of block is connected, the valve that oil circuit where heat exchanger and load-sensitive formula proportional multi-path reversing valve integrate
The ad hoc oil return box interface R of precompensation device link block is connected.
The positive effect of the present invention is: can control the movement of executive component based on load-sensitive formula proportional multi-path reversing valve
Direction and movement velocity, and the movement velocity is not dependent on load, and it is simultaneously and mutually independent to be able to achieve multiple executive components
With friction speed and pressure duty, until the summation of all partial discharges reaches the flow of pump, needed for executive component
When flow is greater than the flow that hydraulic pump can be provided, system will give the assignment of traffic of hydraulic pump to each executive component pari passu,
Rather than the executive component of the lower load pressure of flow, hydraulic system composition is simplified, the movement relation of executive component has been coordinated,
Improve the efficiency and performance of hydraulic system.
Detailed description of the invention
Fig. 1 is existing spiral push pipe machine hydraulic system structure chart.
Fig. 2 is spiral push pipe machine hydraulic system structure chart of the present invention.
Specific embodiment
Referring to Fig.2, the present invention includes: to form the constant-pressure variable pump 16 of hydraulic cylinder control loop, pumping hole check valve 17, same
Walk motor 18, one-way throttle valve 19, hydraulic cylinder 20, overflow valve 21, filter 12, form motor control circuit counterbalance valve 10,
Hydraulic motor 11, composition heat-radiation loop heat exchange check valve 14, heat exchanger 15；
Load-sensitive formula proportional multi-path reversing valve 22 is packed into hydraulic motor loop and cylinder circuit.
The connection relationship of each element of complete hydraulic system of the present embodiment is: 16 pressure oil port of constant-pressure variable pump and pumping hole
Check valve 17 is connected, and swash plate control port is connected with 21 oil inlet of overflow valve.21 oil outlet of overflow valve and 15 oil inlet of heat exchanger
Mouth is connected, and 15 oil outlet of heat exchanger is connected with the oil inlet of filter 12, and 12 oil outlet of filter is connected with fuel tank.Filter 12
Oil inlet is connected with heat exchange 14 oil inlet of check valve simultaneously, and heat exchange 14 oil outlet of check valve is connected in fuel tank.Pumping hole check valve 17
The ad hoc pressure oil oil inlet P for the valve precompensation device link block that oil outlet and load-sensitive formula proportional multi-path reversing valve 22 integrate
Be connected, the ad hoc oil return box interface R of the integrated valve precompensation device link block of load-sensitive formula proportional multi-path reversing valve 22 with change
Hot 12 oil inlet of device is connected；The integrated middle position of load-sensitive formula proportional multi-path reversing valve is O-shaped reversing slide valve and syncmotor
18 oil inlets are connected, and 18 oil outlet of syncmotor is connected with hydraulic cylinder rodless cavity, hydraulic cylinder rod chamber and one-way throttle valve 19 into
Hydraulic fluid port is connected, and the middle position that 19 vent line of one-way throttle valve and load-sensitive formula proportional multi-path reversing valve 22 integrate is O-shaped commutation
Slide valve is connected.The integrated middle position of load-sensitive formula proportional multi-path reversing valve is that the reversing slide valve of Y type and hydraulic motor 11 pass in and out oil
Mouth is connected, and 11 drain tap of hydraulic motor is connected with 10 oil inlet of counterbalance valve, and 10 oil outlet of counterbalance valve is connected with fuel tank.
Claims (2)
1. a kind of spiral push-bench drive hydraulic system principle, comprising: constant-pressure variable pump, the pumping hole list of composition hydraulic cylinder control loop
To valve, syncmotor, one-way throttle valve, hydraulic cylinder, overflow valve, filter, the counterbalance valve of motor control circuit, hydraulic horse are formed
It reaches, form heat-radiation loop heat exchange check valve, heat exchanger；
It is characterized in that: heat exchanger moves to cylinder circuit filter and is installed in series on oil return box branch road in heat-radiation loop；In liquid
Load-sensitive formula proportional multi-path reversing valve is packed into pressure motor control loop and cylinder circuit；The element shares for two circuits；
Load-sensitive formula proportional multi-path reversing valve in the hydraulic motor loop is mounted on pumping hole check valve and hydraulic motor
Between, specifically it is connected as the oil inlet of hydraulic motor and two oil circuits of oil return opening and load-sensitive formula proportional multi-path reversing valve collection
At middle position be that two output oil ports of reversing slide valve of Y type are respectively connected with；Load-sensitive formula ratio in the cylinder circuit
Multiple directional control valve is mounted between pumping hole check valve, heat exchanger and hydraulic cylinder, is specifically connected as the rod chamber of hydraulic cylinder and without bar
The middle position that two oil circuits and load-sensitive formula proportional multi-path reversing valve of chamber integrate is two output oil ports of O-shaped reversing slide valve
It is respectively connected with, the valve precompensation device link block that oil circuit where pumping hole check valve and load-sensitive formula proportional multi-path reversing valve integrate
Ad hoc pressure oil oil inlet P is connected, and mends before the valve that oil circuit where heat exchanger is integrated with load-sensitive formula proportional multi-path reversing valve
The ad hoc oil return box interface R for repaying device link block is connected.
2. a kind of spiral push-bench drive hydraulic system principle according to claim 1, it is characterised in that: the connection of each element is closed
System is: constant-pressure variable pump pressure oil port is connected with pumping hole check valve, and swash plate control port is connected with overflow valve oil inlet；It overflows
Stream valve oil outlet be connected with heat exchanger oil inlet, heat exchanger oil outlet is connected with the oil inlet of filter, filter oil outlet and
Fuel tank is connected；Filter oil inlet is connected with heat exchange check valve oil inlet simultaneously, and heat exchange check valve oil outlet is connected with fuel tank；Pump
The ad hoc pressure oil for the valve precompensation device link block that mouth check valve oil outlet and load-sensitive formula proportional multi-path reversing valve integrate
Oil inlet P is connected, the ad hoc oil return box interface R of the integrated valve precompensation device link block of load-sensitive formula proportional multi-path reversing valve
It is connected with 12 oil inlet of heat exchanger；The integrated middle position of load-sensitive formula proportional multi-path reversing valve be O-shaped reversing slide valve with it is synchronous
Motor oil inlet is connected, and syncmotor oil outlet is connected with hydraulic cylinder rodless cavity, hydraulic cylinder rod chamber and one-way throttle valve oil inlet
Mouth is connected, and one-way throttle valve vent line is O-shaped reversing slide valve phase with the middle position that load-sensitive formula proportional multi-path reversing valve integrates
Even；The integrated middle position of load-sensitive formula proportional multi-path reversing valve is that the reversing slide valve of Y type is connected with hydraulic motor oil inlet and outlet, liquid
Pressure motor drain tap is connected with counterbalance valve oil inlet, and counterbalance valve oil outlet is connected with fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910749366.1A CN110486343A (en) | 2019-08-14 | 2019-08-14 | A kind of spiral push-bench drive hydraulic system principle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910749366.1A CN110486343A (en) | 2019-08-14 | 2019-08-14 | A kind of spiral push-bench drive hydraulic system principle |
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| CN110486343A true CN110486343A (en) | 2019-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910749366.1A Pending CN110486343A (en) | 2019-08-14 | 2019-08-14 | A kind of spiral push-bench drive hydraulic system principle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197602A (en) * | 2020-01-14 | 2020-05-26 | 宝鸡石油机械有限责任公司 | Seabed base plate hydraulic system and energy-saving control method of system |
| CN111396408A (en) * | 2020-04-20 | 2020-07-10 | 中铁工程装备集团有限公司 | Stroke control device and method for slurry shield crusher |
| CN112796689A (en) * | 2021-02-03 | 2021-05-14 | 江苏中煤矿山设备有限公司 | Pressure-adjustable pump truck for punching and drilling |
-
2019
- 2019-08-14 CN CN201910749366.1A patent/CN110486343A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111197602A (en) * | 2020-01-14 | 2020-05-26 | 宝鸡石油机械有限责任公司 | Seabed base plate hydraulic system and energy-saving control method of system |
| CN111197602B (en) * | 2020-01-14 | 2022-05-13 | 宝鸡石油机械有限责任公司 | Seabed base plate hydraulic system and energy-saving control method of system |
| CN111396408A (en) * | 2020-04-20 | 2020-07-10 | 中铁工程装备集团有限公司 | Stroke control device and method for slurry shield crusher |
| CN111396408B (en) * | 2020-04-20 | 2022-03-04 | 中铁工程装备集团有限公司 | Stroke control device and method for slurry shield crusher |
| CN112796689A (en) * | 2021-02-03 | 2021-05-14 | 江苏中煤矿山设备有限公司 | Pressure-adjustable pump truck for punching and drilling |
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