CN106425969B - A kind of hydraulic spanner - Google Patents
A kind of hydraulic spanner Download PDFInfo
- Publication number
- CN106425969B CN106425969B CN201611219835.1A CN201611219835A CN106425969B CN 106425969 B CN106425969 B CN 106425969B CN 201611219835 A CN201611219835 A CN 201611219835A CN 106425969 B CN106425969 B CN 106425969B
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- China
- Prior art keywords
- oil
- valve
- hydraulic
- combiner
- hydraulic spanner
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The present invention provides a kind of hydraulic spanners, comprising: by oil supply system, oil-control system and executes wrench body and center distance regulating mechanism that system is constituted；Wherein: oil supply system is connected with oil-control system；Oil-control system is connected with the system of execution；Center distance regulating mechanism install on a performing system, for adjust the center of hydraulic spanner away from.The present invention can realize nut is operated while, be capable of the center of flexible modulation spanner away from enabling spanner to carry out while operate the bolt of different size two sides, the user experience is improved.
Description
Technical field
The present invention relates to track wrench technical fields, more specifically to a kind of hydraulic spanner.
Background technique
Currently, mostly carrying out pine to bolt using spanner when railroad ties, engineering construction, mine etc. are built and are safeguarded
Tight operation.Existing spanner General Central can not achieve output torque by sleeve to different size two sides away from being unable to adjust
Bolt is carried out while being operated, so that user experience is poor.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of hydraulic spanner, it is capable of the center of flexible modulation spanner away from making
Obtaining spanner can carry out while operate to the bolt of different size two sides, and the user experience is improved.
To achieve the above object, the present invention provides a kind of hydraulic spanners, comprising: by oil supply system, oil-control system and holds
The wrench body and center distance regulating mechanism that row system is constituted；Wherein:
The oil supply system is connected with the oil-control system；
The oil-control system is connected with the execution system；
The center distance regulating mechanism is mounted in the execution system, for adjust the center of the hydraulic spanner away from.
Preferably, the oil supply system includes: the first oil pump, the second oil pump and system overflow valve；Wherein:
First oil pump is connected by oil transportation oil pipe with the system overflow valve.
Preferably, the oil-control system includes: check valve, unloading overflow valve, reversal valve, the first flow divider-combiner, second
Flow divider-combiner and torque adjusting valve；Wherein:
Second oil pump is connected with the check valve and unloading overflow valve respectively by oil transportation oil pipe；
The check valve and the unloading overflow valve are connected with the reversal valve respectively by oil transportation oil pipe；
The reversal valve also passes through oil transportation oil pipe and is connected with first oil pump；
First flow divider-combiner and the second flow divider-combiner are connected by oil transportation oil pipe with the reversal valve；
The torque adjusting valve is connected by oil transportation oil pipe with the reversal valve.
Preferably, the execution system includes: the first motor and the second motor；Wherein:
First motor and the second motor are shunted with first flow divider-combiner and second respectively by oil transportation oil pipe
Combiner valve is connected.
Preferably, the hydraulic spanner further include: petrol engine and clutch；Wherein:
The petrol engine is connected by the clutch with first oil pump and the second oil pump.
Preferably, the clutch is centrifugal clutch.
Preferably, the hydraulic spanner further include: the pressure gauge being mounted between the system overflow valve and reversal valve.
Preferably, the hydraulic spanner further include: the cooler being mounted between the reversal valve and fuel tank.
Preferably, the reversal valve is three position four-way directional control valve.
Preferably, the center distance regulating mechanism is equipped with positive and reverse return screw rod.
It can be seen from the above technical scheme that a kind of hydraulic spanner provided by the invention, including by oil supply system, oil-control
System and the wrench body and center distance regulating mechanism for executing system composition；Oil supply system is connected with oil-control system；Oil-control system
System is connected with the system of execution；Center distance regulating mechanism install on a performing system, for adjust the center of hydraulic spanner away from.Pass through
Oil supply system provides hydraulic oil, the control of hydraulic oil flow direction and pressure is carried out by oil-control system, to control spanner to spiral shell
Female degree of tightening adjusts hydraulic spanner by center distance regulating mechanism by execution system to tighten and unscrew to nut
Center away from, realize nut is operated while, be capable of the center of flexible modulation spanner away from enabling spanner to difference
The bolt of size two sides is carried out while being operated, and the user experience is improved.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of hydraulic spanner embodiment 1 disclosed by the invention；
Fig. 2 is the hydraulic schematic diagram of one of hydraulic spanner ontology disclosed by the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, being a kind of structural schematic diagram of hydraulic spanner embodiment 1 disclosed by the invention, which can
To include: by oil supply system 101, oil-control system 102 and to execute wrench body and center distance regulating mechanism that system 103 is constituted
104；Wherein:
Oil supply system 101 is connected with oil-control system 102；
Oil-control system 102 is connected with system 103 is executed；
Center distance regulating mechanism 104 is mounted in execution system 103, for adjust the center of hydraulic spanner away from.
In the above-described embodiments, hydraulic spanner provides hydraulic oil by oil supply system, passes through oil-control system when executing work
System carries out the control of hydraulic oil flow direction and pressure, to control spanner to the degree of tightening of nut, by executing system to right
Nut tightens and unscrews, and adjusts the center of hydraulic spanner away from being operated realizing to nut by center distance regulating mechanism
Meanwhile, it is capable to which the center of flexible modulation spanner is away from enabling spanner to carry out while operate the bolts of different size two sides, mention
User experience is risen.
Specifically, one of hydraulic schematic diagram of hydraulic spanner ontology is as shown in Figure 2, comprising: the first oil pump 201,
Two oil pumps 202, system overflow valve 203, check valve 204, unloading overflow valve 205, reversal valve 206, the first flow divider-combiner 207,
Second flow divider-combiner 208, torque adjusting valve 209, the first motor 210, the second motor 211, pressure gauge 212；Wherein:
First oil pump 201 is connected by oil transportation oil pipe with system overflow valve 203；
Second oil pump 202 is connected with check valve 204 and unloading overflow valve 205 respectively by oil transportation oil pipe；
Check valve 204 and unloading overflow valve 205 are connected with reversal valve 206 respectively by oil transportation oil pipe；
Reversal valve 206 is also connected by oil transportation oil pipe with the first oil pump 201；
First flow divider-combiner 207 and the second flow divider-combiner 208 are connected by oil transportation oil pipe with reversal valve 206；
Torque adjusting valve 209 is connected by oil transportation oil pipe with reversal valve 206；
First motor 210 and the second motor 211 are shunted with the first flow divider-combiner 207 and second respectively by oil transportation oil pipe
Combiner valve 208 is connected；
Pressure gauge 212 is mounted between system overflow valve 203 and reversal valve 206.
Specifically, hydraulic spanner provided by the invention is described in detail below.
The oil circuit direction of the entire hydraulic system of hydraulic spanner provided by the invention and fuel feeding transfer pass through " plug-in type a liquid
Pressure integrated valve block " is realized that structure is very compact.This hydraulic spanner designs using double motor and passes through six hydraulic valve tune
Section, to realize the precision for improving output torque and realize that output torque passes through sleeve to sleeper two sides bolt while tightening；It is logical
Special center distance regulating mechanism design is crossed to require to adapt to the different of China railways.Center distance regulating mechanism is mounted on the first motor
In the mounting base of the second motor, positive and reverse return screw rod is housed, when forward direction is twisted, center is reversed when twisting away from reduction, center away from becoming larger,
Realize system centre away from adjustable；System by system overflow valve as input original part, by torque adjusting valve as when tightening
Torque adjusting and control original part.The oil circuit direction of the supply that system is tightened and unscrewed is controlled by reversal valve, remaining hydraulic valve
Realization system shunts and the functions such as decompression protection.
In actual application, hydraulic spanner can be by petrol engine, clutch, the first oil pump, the second oil pump, system
Overflow valve, reversal valve, the first flow divider-combiner, the second flow divider-combiner, check valve, unloading overflow valve, torque adjusting valve, first
The composition such as motor, the second motor, center distance regulating mechanism, pressure gauge, cooler.
Hydraulic spanner guarantees that spanner can work, by oil-control system progress hydraulic oil by the oil supply system of offer hydraulic oil
Flow direction, pressure control, to control spanner to the degree of tightening of nut；Execution system is to tighten nut and unscrew.
Oil supply system is by system overflow valve, and wherein system overflow valve passes through artificial regulating system pressure height, dextrorotation pressure
Increase, derotation pressure reduction, in spanner factory, system pressure is adjusted to 1617MPa, and wherein pressure is according to the function of petrol engine
Rate determines, does not have to adjust again after regulating, guarantees system pressure；First oil pump, the second oil pump, oil transportation oil pipe composition.
Maximum output torque value and motor rotary speed to guarantee default is steady, and hydraulic spanner provided by the invention uses
Unloading overflow valve is controlled, and unloading overflow valve is connected with the second oil pump, and the control pressure adjustable of the valve is typically set at
8MPa.When system pressure is lower than 8MPa, the first oil pump and the second oil pump are turned simultaneously to system fuel feeding with increasing the idle running of motor
Speed；When system pressure is higher than 8MPa, check valve is locked, makes the second oil pump no longer to system fuel feeding, the oil of the second oil pump output
Fuel tank is flowed back to by unloading overflow valve, realizes off-load.
Oil-control system includes three position four-way directional control valve, and there are three types of working conditions for three position four-way directional control valve tool: including positive guide
Oily, reversed Oil Guide and empty stream.Hydraulic spanner is by that can guarantee that spanner only uses one using this working characteristics of three-position four-way valve
Set oil supply system can be completed to nut tighten or unscrewing operation.
Hydraulic spanner provided by the invention is worked by two hydraulic motors of a hydraulic system while manipulation, by using
First flow divider-combiner and the second flow divider-combiner, regardless of motor load changes, can to guarantee that motor obtains roughly the same
Flow, is unlikely to allow two motor stalls.
Torque adjusting valve is mounted on dextrorotation oil circuit, so that hydraulic motor is obtained different pressure by changing pressure height
Difference, to reach the different torque purposes of output, to control hydraulic spanner to the degree of tightening of nut, hydraulic spanner provided by the invention
Adjusting pressure limit is 80Nm-420Nm.
Execution system includes that the first motor and the second motor and petroleum pipeline are constituted, and the first motor and the second motor all have
Two oil transportation mouths, the two oil transportation mouths all have oil inlet, fuel-displaced function.First motor and the second motor have power output end,
The sleeve of twisting nut is installed on power output end.
The specific work process of hydraulic spanner provided by the invention are as follows: hydraulic spanner output is divided into three kinds of states, positive, anti-
To, it is unloaded.When hydraulic oil is by being in empty stream mode in the switch of reversal valve 3-position 4-way in oil supply system and entrance reversal valve
When, system no pressure starts petrol engine independently without any load, and hydraulic system is in off-load shape
State.When hydraulic oil is by being in positive Oil Guide state in the switch of reversal valve 3-position 4-way in oil supply system and entrance reversal valve
When, hydraulic oil enters the first motor and the second motor by oil pipe, so that the first motor and the second motor are in two flow distributing and collectings
Under valve action, by the adjusting of torque adjusting valve pressure size, hydraulic spanner exports different torques, tightens nut, realizes two
It is rotated forward while a motor, nut function is tightened in output torque realization.When hydraulic oil by oil supply system and enter reversal valve in,
When the switch of reversal valve 3-position 4-way is in reversed Oil Guide state, hydraulic oil enters the first motor and the second horse by oil pipe
It reaches, so that the first motor and the second motor be under two flow distributing and collecting valve actions, while inverting loosening nut, realizes two motors
While loosening nut function.
Hydraulic spanner is connect using the detachable mounting means of ut socket with motor output end, and sleeve can be designed as difference
Nut button bowl-type formula.Hydraulic spanner provided by the invention is in view of oil temperature can improve hydraulic oil during the work time, to reduce
The hydraulic oil of higher temperature, which flows back into hydraulic oil container, accelerates hydraulic oil aging due to caused by high temperature acceleration, and hydraulic spanner is set
Cooler is counted.Cooler is mounted between reversal valve and fuel tank, carries out cooling to hydraulic oil so that hydraulic fluid temperature reduces, so
After return in fuel tank.Another effect of cooler is the job stability for improving detent system, can from hydraulic working oil property
Know, when hydraulic oil high oil temperature, hydraulic system pressure is reduced, it will the forms of motion for causing hydraulic system to be transmitted " loses
Very ".When hydraulic oil oil temperature increases, hydraulic oil is thinning, exacerbation is let out in system, pressure reduces, at this point, the every offer of hydraulic oil
When 100ml hydraulic oil, it may be 1.8mm, even 1.6mm that the moving distance of execution unit, which will be less than about 2mm,.
Pressure of the pressure gauge to observe hydraulic oil has also been devised in hydraulic spanner provided by the invention, and pressure gauge, which is mounted on, is
It unites between overflow valve and reversal valve.This spanner uses petrol engine as the driving device of oil pump, and petrol engine passes through clutch
Device is connected with the first oil pump and the second oil pump.Clutch is centrifugal clutch, when using centrifugal clutch, only when oil pump drives
When device runs to certain speed, centrifugal clutch can just realize the connection of oil pump and oil pump driving device.Using centrifugation clutch
Device can be avoided, especially winter, and oil pump driving device directly drives oil pump and the locking phenomenon that occurs, additionally it is possible to drive in oil pump
Dynamic device rotary speed separates when very low with the realization of oil pump, in the idling state, realize energy-efficient purpose.
In conclusion present invention is mainly used for the elastic operations of the track bolt in railway construction maintenance, while can expand
Open up to bridge construction, robot control, building, engineering construction etc. stronger labour in need carry out the occasion of elasticity bolt.
Being able to solve bushing core in the prior art, away from cannot be adjusted, torque precision is not high, and cannot be simultaneously to two nuts in left and right
The problems such as tightening or unscrewing.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with it is other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (7)
1. a kind of hydraulic spanner characterized by comprising the spanner sheet being made of oil supply system, oil-control system and execution system
Body and center distance regulating mechanism；Wherein:
The oil supply system is connected with the oil-control system；
The oil-control system is connected with the execution system；
The center distance regulating mechanism is mounted in the execution system, for adjust the center of the hydraulic spanner away from；
The oil supply system includes: the first oil pump, the second oil pump and system overflow valve；Wherein: first oil pump passes through oil transportation
Oil pipe is connected with the system overflow valve；
The oil-control system include: check valve, unloading overflow valve, reversal valve, the first flow divider-combiner, the second flow divider-combiner and
Torque adjusting valve；Wherein: second oil pump is connected with the check valve and unloading overflow valve respectively by oil transportation oil pipe；It is described
Check valve and the unloading overflow valve are connected with the reversal valve respectively by oil transportation oil pipe；The reversal valve also passes through oil transportation oil
Pipe is connected with first oil pump；First flow divider-combiner and the second flow divider-combiner pass through oil transportation oil pipe and the commutation
Valve is connected；The torque adjusting valve is connected by oil transportation oil pipe with the reversal valve；
The execution system includes: the first motor and the second motor；Wherein: first motor and the second motor pass through oil transportation oil
Pipe is connected with first flow divider-combiner and the second flow divider-combiner respectively.
2. hydraulic spanner according to claim 1, which is characterized in that further include: petrol engine and clutch；Wherein:
The petrol engine is connected by the clutch with first oil pump and the second oil pump.
3. hydraulic spanner according to claim 2, which is characterized in that the clutch is centrifugal clutch.
4. hydraulic spanner according to claim 3, which is characterized in that further include: it is mounted on the system overflow valve and changes
To the pressure gauge between valve.
5. hydraulic spanner according to claim 4, which is characterized in that further include: be mounted on the reversal valve and fuel tank it
Between cooler.
6. hydraulic spanner according to claim 5, which is characterized in that the reversal valve is three position four-way directional control valve.
7. hydraulic spanner according to claim 6, which is characterized in that the center distance regulating mechanism is equipped with positive and reverse return spiral shell
Bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611219835.1A CN106425969B (en) | 2016-12-26 | 2016-12-26 | A kind of hydraulic spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611219835.1A CN106425969B (en) | 2016-12-26 | 2016-12-26 | A kind of hydraulic spanner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106425969A CN106425969A (en) | 2017-02-22 |
| CN106425969B true CN106425969B (en) | 2019-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611219835.1A Active CN106425969B (en) | 2016-12-26 | 2016-12-26 | A kind of hydraulic spanner |
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| Country | Link |
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| CN (1) | CN106425969B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107932391B (en) * | 2017-11-20 | 2019-06-14 | 新沂市新维气体有限公司 | A kind of explosion-proof type spanner under Flammable atmosphere |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201128065Y (en) * | 2007-12-25 | 2008-10-08 | 成都四方瑞邦测控科技有限责任公司 | Hydraulic bolt spanner for high speed rail |
| CN102742390A (en) * | 2012-07-09 | 2012-10-24 | 华南农业大学 | Hydraulic front driving type paddy field four-wheel chassis differential steering structure |
| CN203185236U (en) * | 2013-04-18 | 2013-09-11 | 重庆鼎誉机电有限公司 | Hydraulic spanner |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61192423A (en) * | 1985-02-19 | 1986-08-27 | Mazda Motor Corp | Between-axis distance adjusting positioner for plural tools |
| DE3613691A1 (en) * | 1986-04-23 | 1987-10-29 | Anton Wagner | Wheel-nut wrench |
| DE102008019765A1 (en) * | 2008-04-18 | 2009-10-22 | Hohmann, Jörg | Method and device for controlling a hydraulically operated power wrench |
| CN202448078U (en) * | 2012-02-20 | 2012-09-26 | 重庆运达科技有限公司 | Internal combustion hydraulic bolt spanner for railway |
| CN203236408U (en) * | 2013-04-07 | 2013-10-16 | 山东科技大学 | Novel diameter-variable screwing mechanism |
| CN104924259A (en) * | 2015-06-01 | 2015-09-23 | 中国科学院西安光学精密机械研究所 | Special torque screwdriver connector for assembly of optical system |
-
2016
- 2016-12-26 CN CN201611219835.1A patent/CN106425969B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201128065Y (en) * | 2007-12-25 | 2008-10-08 | 成都四方瑞邦测控科技有限责任公司 | Hydraulic bolt spanner for high speed rail |
| CN102742390A (en) * | 2012-07-09 | 2012-10-24 | 华南农业大学 | Hydraulic front driving type paddy field four-wheel chassis differential steering structure |
| CN203185236U (en) * | 2013-04-18 | 2013-09-11 | 重庆鼎誉机电有限公司 | Hydraulic spanner |
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| Publication number | Publication date |
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| CN106425969A (en) | 2017-02-22 |
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