CN209477147U - The anti-eccentric overloading protector of binary channels - Google Patents
The anti-eccentric overloading protector of binary channels Download PDFInfo
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- CN209477147U CN209477147U CN201822026348.4U CN201822026348U CN209477147U CN 209477147 U CN209477147 U CN 209477147U CN 201822026348 U CN201822026348 U CN 201822026348U CN 209477147 U CN209477147 U CN 209477147U
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Abstract
The utility model provides the anti-eccentric overloading protector of binary channels; it is related to punching machine technical field; including successively combine cylinder block, cylinder body, oil pressure seat and unload wedge, set on the cylinder block and the air driven pump of cylinder interior, the oil sucting valve in oil pressure seat, delivery valve and corresponding oil pressure suction inlet, oil pressure delivery outlet, oil drain valve and corresponding bleed outlet set on unloading in wedge, the release piston set on unloading in wedge, travel switch electric wiring and pneumatics entrance and the anti-bias mounted mechanism on oil pressure seat.The utility model binary channels unbalanced-loading preventing structure, can make the double-crankshaft punching machine for meeting large-tonnage (200t or more), fill up the demand in market, can not only protect punching apparatus, moreover it is possible to be hardly damaged protector itself.
Description
Technical field
The utility model relates to the anti-eccentric overloading protectors of punching machine overload protection more particularly to binary channels.
Background technique
Oil pump overload is when typically occur in winter low temperature, after Wind turbines defect is shut down for a long time temperature reduction compared with
More, oil viscosity addition, heavier loads when forming pump start cause Oil pump electrical machinery to overload.Second the reason is that some use year
Longer unit is limited, Oil pump electrical machinery output shaft oil sealing aging causes oil bad into connecting terminal box formation termination contact, three-phase
The phenomenon that oil pump overloads, severeer situation is presented in current imbalance, and oil even can largely enter Oil pump electrical machinery winding, destroys
Winding air gap forms apparatus overload.Oil sealing should be replaced after above-mentioned condition is presented, cleans connecting terminal box and machine winding, and add
From the beginning restore operating after temperature is uninteresting.
Excess load protection device for oil pump makes to install and use on punching machine, to the excess load oil inside detection sliding block oil hydraulic cylinder
Pressure pressure, when overload situations occur when, quickly supply the service pressure of oil cylinder, can eliminate punching machine in punching course because
Pressure is generated when oil temperature rises rises suffered influence.
Current overloading protector generally only apply in 160t uniaxial punching machine below by limit, but in large-tonnage twin shaft punching machine
Protection on there is missing because big in punching machine tonnage, when oil pressure is big, the case where being easy to appear unbalance loading, not only influences to protect
Shield can also damage protective device, therefore the overloading protector of structure type has not obviously been suitable for large-tonnage punching machine at present.
And current overload protection device haves the shortcomings that stability is not high, the service life is short, pump head oil pump capacity is few, and
Structure is complicated, and easily worn part is more, processes many and diverse, maintenance difficult, mostly uses output one-way valve, and input is also check valve, output
It is mostly unidirectionally integral type, can not repairs, can only all replace, result in waste of resources；And input check valve be it is split type, main part is only
It is fixed by lute, is easily detached from and loses when transport or branch mailbox are installed, and oil pressure delivery outlet is single, is not able to satisfy a variety of
The demand of punching apparatus.
Based on this, the applicant specializes in this, develops the anti-eccentric overloading protector of binary channels, this case by
This is generated.
Utility model content
In order to solve drawbacks described above existing in the prior art, the utility model provides the anti-eccentric overload of binary channels and protects
Device is protected, for the use of large-tonnage double-crankshaft punching machine, has the characteristics that unbalanced-loading preventing, stability are preferable.
To achieve the goals above, the technical solution that the utility model is taken is as follows:
The anti-eccentric overloading protector of binary channels, including successively combine cylinder block, cylinder body, oil pressure seat and unload wedge, if
In the cylinder block and the air driven pump of cylinder interior, the oil sucting valve in oil pressure seat, delivery valve and the sucking of corresponding oil pressure
Mouth, oil pressure delivery outlet, set on the oil drain valve and corresponding bleed outlet unloaded in wedge, set on release piston, the stroke unloaded in wedge
Switch electric wiring and pneumatics entrance and the anti-bias mounted mechanism on oil pressure seat.
Preferably, the anti-bias mounted mechanism includes two unbalanced-loading preventing spools and two delivery valve seats, it is described two anti-bias
Spool is carried to be set to inside oil pressure seat and connect with described two delivery valve seats respectively by oil pipeline, described two delivery valve seats
It is connect by oil pipeline with delivery valve.
Preferably, described two delivery valve seats pass through oil pipeline respectively and two go out there are two the delivery valve sets
Oil valve connection.
Preferably, the unbalanced-loading preventing spool includes steel ball and valve block, steel ball is located at outside, and valve block is located inside.
Preferably, the air driven pump includes being set to the intracorporal air rammer of the cylinder, the gas in the cylinder block
Dynamic reversing arrangement and wherein one end are movably installed in the air rammer in the air driving reversing device and with air rammer linkage
Bar, the pneumatic piston rod other end lead to the oil pipeline in the oil pressure seat.
Preferably, the air driving reversing device includes successively combining pneumatic control valve seat, steel ball, the reversing cover of installation
Cylinder, reversal valve, scavenging air valve and Reversing valve plate, the pneumatic control valve seat are fixed on inside cylinder block, the reversing sleeve installation
In in pneumatic control valve seat, the reversal valve is installed on pneumatic control valve seat and is sheathed on the reversing sleeve, described to change
Air valve is sheathed on reversal valve, and the Reversing valve plate is sheathed on the reversal valve.
Preferably, the oil drain valve includes main valve one, main valve two, the main valve plug cooperated with main valve two, is fixed on release
Main valve guide sleeve in seat and the spring between main valve one and main valve two；The main valve one is movably installed in main valve guide sleeve
Between main valve two.
Preferably, the release piston and main valve plug contradict.
Preferably, the main valve for being fixed in wedge and cooperating with main valve one that unloads seals.
Preferably, being equipped with constant-voltage equipment in the oil pressure seat.
Working principle of the utility model is:
Pneumatic reversing principle: gas source is connected, air pressure is by air inlet joint chair, into the chamber one of cylinder block, since air pressure is made
With, push Reversing valve plate contact envelope pressure with scavenging air valve so that air pressure can only past cylinder block there are fabrication hole push, push simultaneously
Air rammer moves right, and air rammer drives pneumatic piston rod, when the small head end of pneumatic piston rod is detached from reversal valve, Reversing valve plate
When, the chamber (chamber two) that gas source air pressure is contacted from original pneumatic piston rod with reversal valve enters chamber three, due to reversing sleeve
It is equipped with venthole, therefore the chamber tee joint of chamber two and reversal valve and reversing sleeve composition, to push reversal valve to the right
Movement, after withstanding Reversing valve plate, separated with scavenging air valve so that Reversing valve plate contact with reversal valve seal press, while scavenging air valve with change
To valve group at chamber four (push chamber) air pressure through cylinder block there are fabrication hole be vented, what steel ball and reversal valve formed
Also there are air pressures in chamber two and chamber three (commutation chamber), push chamber without pressure at this time, pneumatic living due to the reversed elastic force of spring
Stopper rod moves downward reset, when pneumatic piston rod being driven to move downward shock steel ball, so that the air pressure of commutation chamber is zero, commutation
Valve commutates again, when gas source air pressure pushes Reversing valve plate and air rammer again, so that piston rod or so shuttling movement.
Anti- bias overdrive principle: piston motion starts, and oil sucting valve steel ball, which is opened, is pumped into oil, when piston rod moves right, two
Side delivery valve steel ball is opened, and is entered in the delivery valve seat of two sides by oil circuit, two sides are fuel-displaced；Delivery valve seat and each point of two-way, oil
On the one hand pressure enters punching apparatus to be protected by oil pressure delivery outlet, on the other hand enter unbalanced-loading preventing spool, unbalanced-loading preventing spool
Interior steel ball is opened, and oil pressure enters in main valve, pushes main valve, and the linkage of release piston is detached from switch lever and travel switch, contact
It is powered, opens protection.
In the initial state, the valve block in unbalanced-loading preventing spool is in closed state, and the steel ball in unbalanced-loading preventing spool is in freely
Sliding mode is without determining position.When the punching apparatus that the unbalance loading mechanism of wherein side is connected breaks down, oil pressure is increased, and two
Side delivery valve oil pressure generates deviation, and due to oily differential pressure action, oil pressure pushes the steel ball top of the side unbalanced-loading preventing spool to valve block, makes original
This valve block in closed state is opened, and permeability enters internal oil pressure pipeline, so that internal oil pressure increases, to push the other side
The valve block of unbalanced-loading preventing spool opens permeability, and the steel ball of the side is pushed to slide in and out to closure oil sealing；When oil pressure reaches overload point
It is overloaded by discharge mechanism, overloads moment, since internal oil pressure declines, external oil pressure recoil pushes the side unbalanced-loading preventing spool
Steel ball disengages it and opens valve block, emptying release, to protect machinery equipment.
When oil pressure and air pressure keep balancing, oil pressure has pushed main valve one, spring and main valve two, and pushes up to main valve guide bush movement
Stop, while release piston is opened to the right by main valve plug, so that switch lever is detached from travel switch, travel switch contact is powered, opens
Open protection.
The utility model is able to achieve following technical effect:
(1) binary channels unbalanced-loading preventing structure can make the double-crankshaft punching machine for meeting large-tonnage (200t or more), fill up the need in market
It asks, punching apparatus can not only be protected, moreover it is possible to be hardly damaged protector itself.
(2) it unloads in wedge and is contradicted by the compression spring of strength and release piston, can make overload pressure is permanent to keep stablizing, unload
Wedge is additionally provided with regulator bolts, as pressure regulation foundation, can meet the pressure demand of different punching machine tonnages.
(3) protector overall stability is good, the service life is long, pump head oil pump capacity is big, and pump head design is simple, components not rapid wear
Consumption, stability is strong, and flow is full, and assembly is quick, easy to maintenance.
(4) envelope pressure is not likely to produce fatigue compared to soft envelope pressure part using hard envelope inside protector.
(5) apparatus structure is simplified, and reduces the use of fragile part, convenient for disassembly and assembly, and maintenance is quick, pneumatic commutation movement
High stability, overload intensity is high, overloads receiving often.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of the anti-eccentric overloading protector of the present embodiment binary channels；
Fig. 2 is the top view of the anti-eccentric overloading protector of the present embodiment binary channels；
Fig. 3 is the main view of the anti-eccentric overloading protector of the present embodiment binary channels.
Mark explanation: air driving reversing device 1, pneumatic control valve seat 11, reversing sleeve 12, reversal valve 13, scavenging air valve 14 change
To valve block 15, steel ball 16, air rammer 21, piston rod 22, piston rod microcephaly 23, piston pad 24, air inlet joint chair 31, gas connects 32,
Pneumatics entrance 33, silencing cotton 34, air cylinder base 35, reset spring 36, chamber 1, chamber 2 42, chamber 3 43, chamber four
44, oil sucting valve 5, oil suction valve guide 51, delivery valve 6, oil pipeline 61, oil pressure delivery outlet 62, unbalanced-loading preventing spool 71, delivery valve seat
72, valve block 73, oil drain valve 8, main valve 1, main valve 2 82, spring 83, main valve envelope 84, main valve guide sleeve 85, main valve plug 86, release
Piston 87, compression spring 88, regulator bolts 89, travel switch 91, switch lever 92, AB Air Bleed valve 93, constant pressure valve 94, steel ball
95, cylinder block A, cylinder body B, oil pressure seat C, unload wedge D.
Specific embodiment
In order to make the attainable technical effect of technological means and its institute of the utility model, more perfect take off can be become apparent from
Dew, hereby provides one embodiment, and be described in detail as follows in conjunction with attached drawing:
As shown in Figure 1-3, the anti-eccentric overloading protector of the binary channels of the present embodiment, including successively combine cylinder block A,
Cylinder body B, oil pressure seat C and unload wedge D, the air driven pump inside cylinder block A and cylinder body B, the oil sucting valve 5 in oil pressure seat C,
Delivery valve 6 and corresponding oil pressure suction inlet, oil pressure delivery outlet 62 set on the oil drain valve 8 unloaded in wedge D and are accordingly released
Mouth, the release piston 87 set on unloading in wedge D, travel switch electric wiring and pneumatics entrance 33 and on oil pressure seat C
Anti-bias mounted mechanism.Anti-bias mounted mechanism includes two unbalanced-loading preventing spools 71 and two delivery valve seats 72, and two unbalanced-loading preventing spools 71 are set
It is connect respectively with two delivery valve seats 72 inside oil pressure seat C and through oil pipeline 61, two delivery valve seats 72 pass through oil pressure
Pipeline 61 is connect with delivery valve 6.There are two delivery valve 6 is set, two delivery valve seats 72 are gone out by oil pipeline 61 and two respectively
Oil valve 6 connects.Unbalanced-loading preventing spool 71 includes steel ball 95 and valve block 73, and steel ball 95 is located at outside, and valve block 73 is located inside.
Air driven pump includes the air rammer 21 being set in cylinder body B, the air driving reversing device 1 in cylinder block A, Yi Jiqi
The piston rod 22 that middle one end is movably installed in air driving reversing device 1 and links with piston 21,22 other end of piston rod, which leads to, to be set
Oil pipeline 61 in oil pressure seat C.
Air driving reversing device 1 includes successively combining the pneumatic control valve seat 11 of installation, steel ball 16, reversing sleeve 12, commutation
Valve 13, scavenging air valve 14 and Reversing valve plate 15, pneumatic control valve seat 11 are fixed on inside cylinder block A, and reversing sleeve 12 is installed on gas
In dynamic regulating valve seat 11, reversal valve 13 is installed on pneumatic control valve seat 11 and is sheathed on reversing sleeve 12, and 14 sets of scavenging air valve
On reversal valve 13, Reversing valve plate 15 is sheathed on reversal valve 13, and steel ball 16 is installed in reversing sleeve 12, piston rod 22 1
End is movably installed in reversing sleeve 12, and cylinder block A is equipped with pneumatics entrance 33.
Oil drain valve 8 includes main valve 1, main valve 2 82, the main valve plug 86 cooperated with main valve 2 82, is fixed on and unloads in wedge D
Main valve guide sleeve 85 and the spring 83 between main valve 1 and main valve 2 82；Main valve 1 is movably installed in main valve and leads
Between set 85 and main valve 2 82.Release piston 87 and main valve plug 86 contradict.It unloads and is fixed in wedge D and the cooperation of main valve 1
Main valve envelope 84.It unloads in wedge D and is contradicted by the compression spring 88 of strength and release piston 87, and be equipped with regulator bolts 89.Stroke
Switching electric wiring includes travel switch 91, travel switch contact and switch lever 92, and switch lever 92 is installed on release piston 87.
AB Air Bleed valve 93 and constant pressure valve 94 are additionally provided at the top of oil pressure seat C.
The above content is combination preferred embodiments of the present invention to further detailed made by provided technical solution
Describe in detail bright, and it cannot be said that the utility model specific implementation is confined to these above-mentioned explanations, technology affiliated for the utility model
For the those of ordinary skill in field, without departing from the concept of the premise utility, several simple deductions can also be made
Or replacement, it all shall be regarded as belonging to the protection scope of the utility model.
Claims (9)
1. the anti-eccentric overloading protector of binary channels, it is characterised in that: including successively combine cylinder block, cylinder body, oil pressure seat and
Wedge is unloaded, set on the cylinder block and the air driven pump of cylinder interior, the oil sucting valve in oil pressure seat, delivery valve and corresponding
Oil pressure suction inlet, oil pressure delivery outlet are lived set on the oil drain valve and corresponding bleed outlet unloaded in wedge, set on the release unloaded in wedge
Plug, travel switch electric wiring and pneumatics entrance and the anti-bias mounted mechanism on oil pressure seat；The air driven pump includes being set to
The intracorporal air rammer of the cylinder, the air driving reversing device in the cylinder block and wherein one end is movably installed in institute
The pneumatic piston rod in air driving reversing device and with air rammer linkage is stated, the pneumatic piston rod other end leads to set on described
Oil pipeline in oil pressure seat.
2. the anti-eccentric overloading protector of binary channels as described in claim 1, it is characterised in that: the anti-bias mounted mechanism includes
Two unbalanced-loading preventing spools and two delivery valve seats, described two unbalanced-loading preventing spools are set to inside oil pressure seat and by oil pipeline point
It is not connect with described two delivery valve seats, described two delivery valve seats are connect by oil pipeline with delivery valve.
3. the anti-eccentric overloading protector of binary channels as claimed in claim 2, it is characterised in that: the delivery valve is equipped with two
A, described two delivery valve seats pass through oil pipeline respectively and connect with two delivery valves.
4. the anti-eccentric overloading protector of binary channels as claimed in claim 2, it is characterised in that: the unbalanced-loading preventing spool includes
Steel ball and valve block, steel ball are located at outside, and valve block is located inside.
5. the anti-eccentric overloading protector of binary channels as described in claim 1, it is characterised in that: the air driving reversing device packet
Include pneumatic control valve seat, steel ball, reversing sleeve, reversal valve, scavenging air valve and the Reversing valve plate for successively combining installation, the pneumatic tune
Section valve seat is fixed on inside cylinder block, and the reversing sleeve is installed in pneumatic control valve seat, and the reversal valve is installed on pneumatically
It on regulating valve seat and is sheathed on the reversing sleeve, the scavenging air valve is sheathed on reversal valve, and the Reversing valve plate is sheathed on
On the reversal valve.
6. the anti-eccentric overloading protector of binary channels as claimed in claim 2, it is characterised in that: the oil drain valve includes main valve
One, main valve two, cooperate with main valve two main valve plug, be fixed on and unload main valve guide sleeve in wedge and be set to main valve one and main valve
Spring between two；The main valve one is movably installed between main valve guide sleeve and main valve two.
7. the anti-eccentric overloading protector of binary channels as claimed in claim 6, it is characterised in that: the release piston and main valve
Core contradicts.
8. the anti-eccentric overloading protector of binary channels as claimed in claim 6, it is characterised in that: described to unload fixed in wedge set
There is the main valve cooperated with main valve one to seal.
9. the anti-eccentric overloading protector of binary channels as described in claim 1, it is characterised in that: be equipped with perseverance in the oil pressure seat
Pressure device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822026348.4U CN209477147U (en) | 2018-12-04 | 2018-12-04 | The anti-eccentric overloading protector of binary channels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822026348.4U CN209477147U (en) | 2018-12-04 | 2018-12-04 | The anti-eccentric overloading protector of binary channels |
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| CN209477147U true CN209477147U (en) | 2019-10-11 |
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| CN201822026348.4U Active CN209477147U (en) | 2018-12-04 | 2018-12-04 | The anti-eccentric overloading protector of binary channels |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382456A (en) * | 2018-12-04 | 2019-02-26 | 嵊州市元昊机械有限公司 | The anti-eccentric overloading protector of binary channels |
-
2018
- 2018-12-04 CN CN201822026348.4U patent/CN209477147U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382456A (en) * | 2018-12-04 | 2019-02-26 | 嵊州市元昊机械有限公司 | The anti-eccentric overloading protector of binary channels |
| CN109382456B (en) * | 2018-12-04 | 2024-05-03 | 嵊州市元昊机械有限公司 | Double-channel eccentric overload protector |
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