CN209654340U - A kind of master cylinder of hydraulic press - Google Patents
A kind of master cylinder of hydraulic press Download PDFInfo
- Publication number
- CN209654340U CN209654340U CN201821925433.8U CN201821925433U CN209654340U CN 209654340 U CN209654340 U CN 209654340U CN 201821925433 U CN201821925433 U CN 201821925433U CN 209654340 U CN209654340 U CN 209654340U
- Authority
- CN
- China
- Prior art keywords
- end cap
- piston
- cylinder
- left end
- hydraulic fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000012530 fluid Substances 0.000 claims abstract description 29
- 239000000872 buffer Substances 0.000 claims abstract description 9
- 230000003139 buffering effect Effects 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- -1 timber Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Actuator (AREA)
Abstract
The utility model relates to a kind of master cylinders of hydraulic press.It includes left end cap, sealing element, dustband, piston rod, piston, limited block, right end cap, cylinder barrel, the left end cap, the cylinder barrel, the right end cap passes through screw rod, nut, washer connection, the piston is set in cylinder barrel to be cooperated with cylinder barrel, described piston rod one end is connect by limited block with piston, the other end runs through the left end cap, it is characterized by: the thin wall type cylinder outside piston is extended in the both ends setting of the piston, multiple U-lags are opened up on the end face of the thin wall type cylinder as first-level buffer, the limit hydraulic fluid port being connected to in cylinder barrel is equipped on the left end cap and right end cap, the two limit hydraulic fluid ports connect solenoid valve by oil pipe, stroke plate is additionally provided on the left end cap, screw thread is equipped with travel switch on the stroke plate, the solenoid valve electric signal connects travel switch, solenoid valve is controlled using travel switch On-off realize level 2 buffering.The utility model is buffered by firsts and seconds guarantees that piston will not hit cylinder cover.
Description
Technical field
The utility model relates to a kind of hydraulic presses, more particularly to a kind of master cylinder of hydraulic press.
Background technique
Hydraulic press is a kind of machinery that the products such as metal, plastics, rubber, timber, powder are processed using hydrostatic pressure.
It is usually used in pressing process and block pressing forming process, such as: forging and stamping, punching press, cold-extruded, alignment, bending, flange, process of sheet drawing, powder
Metallurgy, press fitting etc..
In existing main oil cylinder of oil press:
Some is not provided with buffering, and oil cylinder piston is caused to hit oil cylinder end when piston rod stretches out the limit and returns to terminal location
Lid, generates biggish vibration and noise.
Some returns to terminal location in cylinder piston rod and first-level buffer is arranged, and cylinder piston rod is being moved to close to return eventually
It can slow down when end, but not be avoided that oil cylinder piston hits cylinder cover still, and stretch out extreme end without slow in cylinder piston rod
Punching, generates vibration and oil cylinder piston hits cylinder cover phenomenon.
Some two-way first-level buffers of setting, when this kind is buffered in cylinder piston motion to buffer position, flow is gradually reduced,
The movement velocity of oil cylinder piston is gradually reduced, and can be played certain buffer function, but is not still avoided that cylinder piston motion
Cylinder cover is hit when to end.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of master cylinder of hydraulic press.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of master cylinder of hydraulic press, the master cylinder of the hydraulic press include left end cap, sealing element, dustband, piston rod,
Piston, limited block, right end cap, cylinder barrel, the left end cap, the cylinder barrel, the right end cap are connected by screw rod, nut, washer,
The piston is set in cylinder barrel to be cooperated with cylinder barrel, and described piston rod one end is connect by limited block with piston, and the other end runs through institute
State left end cap, it is characterised in that: the thin wall type cylinder outside piston, the thin wall type cylinder are extended in the both ends setting of the piston
End face on open up multiple U-lags as first-level buffer, be equipped with the limit being connected to in cylinder barrel on the left end cap and right end cap
Position hydraulic fluid port, the two limit hydraulic fluid ports are additionally provided with stroke plate on the left end cap by oil pipe connection solenoid valve, on the stroke plate
Screw thread is equipped with travel switch, and the solenoid valve electric signal connects travel switch, utilizes the on-off of travel switch control solenoid valve
Realize level 2 buffering.
It is side outside the left end cap in a kind of preferred embodiment of the master cylinder of hydraulic press provided by the utility model
Shape, the side open-blind hole of opposite cylinder barrel, the blind hole are arrived in the piston rod movement close to when stretching out extreme position and the work
The thin wall type cylinder clearance fit of plug, and the hydraulic fluid port of connection blind hole is provided on the left end cap, the hydraulic fluid port is apart from blind hole
The length of the size > thin wall type cylinder of end, the hydraulic fluid port include oil inlet and oil outlet, and the oil inlet is connected to oil outlet.
It is side outside the right end cap in a kind of preferred embodiment of the master cylinder of hydraulic press provided by the utility model
Shape, the side open-blind hole of opposite cylinder barrel, the blind hole are arrived in the piston rod movement close to when returning to terminal location and the work
The thin wall type cylinder clearance fit of plug, and the hydraulic fluid port of connection blind hole is provided on the left end cap, the hydraulic fluid port is apart from blind hole
The length of the size > thin wall type cylinder of end, the hydraulic fluid port include oil inlet and oil outlet, and the oil outlet is connected to oil inlet.
In a kind of preferred embodiment of the master cylinder of hydraulic press provided by the utility model, the travel switch includes position
The first stroke switch of extreme position is stretched out in piston rod and positioned at the second stroke switch for returning to terminal location.
In a kind of preferred embodiment of the master cylinder of hydraulic press provided by the utility model, the solenoid valve is two two
Three-way electromagnetic valve, obtains electric Shi Liantong, and when power loss is obstructed.
In a kind of preferred embodiment of the master cylinder of hydraulic press provided by the utility model, the thin-walled at the piston both ends
Type tube body opens up 4 U-lags, and 4 U-lags are distributed in thin wall type cylinder.
In a kind of preferred embodiment of the master cylinder of hydraulic press provided by the utility model, the U-lag is by symmetrical
Two sections of circular arcs are constituted, 25 °≤α≤30 ° of angle between two strings of two sections of circular arcs.
Compared with prior art, the beneficial effect of the master cylinder of hydraulic press provided by the utility model is: by oil cylinder
Arc-shaped slot to be opened on piston cylinder, is buffered as the two-way first order, this kind of structure piston gradually changes when moving to buffer position,
Circular arc smooth transition, the size variation amplitude of oil liquid flow is continuously slow, will not generate vibration；By the way that travel switch, electricity is arranged
Magnet valve is buffered as the two-way second level, and when cylinder piston rod, which moves to, to be stretched out the limit and return to terminal location, travel switch is sent out
Instruction, solenoid valve obtain it is electric, solenoid valve connection, the pressure at oil cylinder piston both ends is equal at this time, and oil cylinder piston stop motion will not be hit
Hit cylinder cover.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings, in which:
Fig. 1 is the structural schematic diagram of the master cylinder of hydraulic press provided by the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
All other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the master cylinder of the hydraulic press includes left end cap 1, sealing element 2, dustband 3, piston rod 4, piston
9, limited block 10, right end cap 15, cylinder barrel 16, the left end cap 1, the cylinder barrel 16, the right end cap 15 by screw rod, nut,
Washer connection, the piston 9 is set in cylinder barrel 16 to be cooperated with cylinder barrel 16, and described 4 one end of piston rod passes through limited block 10 and piston 9
Connection, the other end run through the left end cap 1, and the thin wall type cylinder outside piston 9 is extended in the both ends setting of the piston 9, described
Multiple U-lags are opened up on the end face of thin wall type cylinder as first-level buffer, are equipped on the left end cap 1 and right end cap 15 and cylinder
The limit hydraulic fluid port 13 and limit hydraulic fluid port 153 being connected in cylinder 16, the limit hydraulic fluid port 13 and limit hydraulic fluid port 153 are connected by oil pipe 14
Solenoid valve 8 is additionally provided with stroke plate 7 on the left end cap 1, and screw thread is equipped with travel switch 6, the electromagnetism on the stroke plate 7
8 electric signal of valve connects travel switch 6, realizes level 2 buffering using the on-off that travel switch 6 controls solenoid valve 8.That is: the described piston
Bar 4 moves to travel switch 6 when stretching out the limit and returning to terminal location and sends instructions, and solenoid valve 8 obtains electric, the connection of solenoid valve 8, at this time
The pressure at 9 both ends of oil cylinder piston is equal, 9 stop motion of oil cylinder piston, will not hit oil cylinder left end cap 1 or right end cap 15, realizes
Second level buffering.
Be outside the left end cap 1 it is rectangular, the side open-blind hole of opposite cylinder barrel 16, the blind hole is transported in the piston rod 4
It moves close to thin wall type cylinder clearance fit when stretching out extreme position with the piston 9, and the left end cap 1 is provided with connection
The hydraulic fluid port of blind hole, the length L2 of the size L1 > thin wall type cylinder of end of the hydraulic fluid port apart from blind hole, the hydraulic fluid port include into
Hydraulic fluid port 11 and oil outlet 12, the oil inlet 11 are connected to oil outlet 12.
Be outside the right end cap 15 it is rectangular, the side open-blind hole of opposite cylinder barrel 16, the blind hole is transported in the piston rod 4
It moves close to thin wall type cylinder clearance fit when returning to terminal location with the piston 9, and is provided on the left end cap 15
It is connected to the hydraulic fluid port of blind hole, the length L3 of the size L4 > thin wall type cylinder of end of the hydraulic fluid port apart from blind hole, the hydraulic fluid port packet
Oil inlet 151 and oil outlet 152 are included, the oil outlet 151 is connected to oil inlet 152.
The travel switch 6 includes stretching out the first stroke switch 61 of extreme position positioned at piston rod 4 and being located to return eventually
The second stroke switch 62 of end position.
The solenoid valve 8 is two-position two-way solenoid valve, obtains electric Shi Liantong, and when power loss is obstructed.
The 9 both ends thin wall type cylinder of piston opens up 4 U-lags, and 4 U-lags are distributed in thin wall type cylinder.
The U-lag is made of symmetrical two sections of circular arcs, 25 °≤α≤30 ° of angle between two strings of two sections of circular arcs.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Using equivalent structure or equivalent flow shift made by the utility model description, it is applied directly or indirectly in other phases
The technical field of pass similarly includes within the scope of patent protection of the utility model.
Claims (7)
1. a kind of master cylinder of hydraulic press, including left end cap, sealing element, dustband, piston rod, piston, limited block, right end cap,
Cylinder barrel, by screw rod, nut, washer connection, the piston is set in cylinder barrel for the left end cap, the cylinder barrel, the right end cap
Cooperate with cylinder barrel, described piston rod one end is connect by limited block with piston, and the other end runs through the left end cap, and feature exists
In: the thin wall type cylinder outside piston is extended in the both ends setting of the piston, opens up multiple U on the end face of the thin wall type cylinder
Shape slot is equipped with the limit hydraulic fluid port being connected to in cylinder barrel, two limits on the left end cap and right end cap as first-level buffer
Hydraulic fluid port connects solenoid valve by oil pipe, is additionally provided with stroke plate on the left end cap, screw thread is equipped with stroke and opens on the stroke plate
It closes, the solenoid valve electric signal connects travel switch, realizes level 2 buffering using the on-off of travel switch control solenoid valve.
2. the master cylinder of hydraulic press according to claim 1, it is characterised in that: be outside the left end cap it is rectangular, relatively
The side open-blind hole of cylinder barrel, the blind hole is in the piston rod movement to thin-walled when approaching stretching extreme position with the piston
The cooperation of type tube body space, and the hydraulic fluid port of connection blind hole, the ruler of end of the hydraulic fluid port apart from blind hole are provided on the left end cap
The length of very little > thin wall type cylinder, the hydraulic fluid port include oil inlet and oil outlet, and the oil inlet is connected to oil outlet.
3. the master cylinder of hydraulic press according to claim 1, it is characterised in that: be outside the right end cap it is rectangular, relatively
The side open-blind hole of cylinder barrel, the blind hole is in the piston rod movement to thin-walled when approaching return terminal location with the piston
The cooperation of type tube body space, and the hydraulic fluid port of connection blind hole, the ruler of end of the hydraulic fluid port apart from blind hole are provided on the left end cap
The length of very little > thin wall type cylinder, the hydraulic fluid port include oil inlet and oil outlet, and the oil outlet is connected to oil inlet.
4. the master cylinder of hydraulic press according to claim 1, it is characterised in that: the travel switch includes being located at piston rod
Stretch out the first stroke switch of extreme position and positioned at the second stroke switch for returning to terminal location.
5. the master cylinder of hydraulic press according to claim 1, it is characterised in that: the solenoid valve is bi-bit bi-pass electromagnetism
Valve, obtains electric Shi Liantong, and when power loss is obstructed.
6. the master cylinder of hydraulic press according to claim 1, it is characterised in that: the thin wall type cylinder at the piston both ends is opened
If 4 U-lags, 4 U-lags are distributed in thin wall type cylinder.
7. the master cylinder of hydraulic press according to claim 6, it is characterised in that: the U-lag is by symmetrical two sections of circular arcs
It constitutes, 25 °≤α≤30 ° of angle between two strings of two sections of circular arcs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821925433.8U CN209654340U (en) | 2018-11-21 | 2018-11-21 | A kind of master cylinder of hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821925433.8U CN209654340U (en) | 2018-11-21 | 2018-11-21 | A kind of master cylinder of hydraulic press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209654340U true CN209654340U (en) | 2019-11-19 |
Family
ID=68506543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821925433.8U Expired - Fee Related CN209654340U (en) | 2018-11-21 | 2018-11-21 | A kind of master cylinder of hydraulic press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209654340U (en) |
-
2018
- 2018-11-21 CN CN201821925433.8U patent/CN209654340U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2006021076A8 (en) | Hydraulic drive system and method of operating a hydraulic drive system | |
| CN201155492Y (en) | Mechanical servo valve and hydraulic circuit applying same | |
| CN203926222U (en) | For the buffering control device of double-acting hydraulic cylinder | |
| CN201148948Y (en) | Magnetic control automatic reversing controlled gas drive hydraulic pump | |
| CN209654340U (en) | A kind of master cylinder of hydraulic press | |
| CN213360612U (en) | Hydraulic cylinder base of integrated reversing valve | |
| CN204436946U (en) | The permanent throttling buffering mechanism of a kind of oil hydraulic cylinder | |
| CN205117877U (en) | Single pole two -way ram formula pneumatic cylinder | |
| CN103867524A (en) | Double-acting second-level hydraulic cylinder | |
| CN205715034U (en) | Bulky refuse station push pedal impact-reducing hydraulic system | |
| CN208719061U (en) | A kind of adjustable hydraulic cylinder of bidirectional buffering speed | |
| CN202228770U (en) | Fast-discharging slow-feeding air valve with large draft diameter | |
| CN208531363U (en) | It is mute without impact Mobile garbage compression box hydraulic system | |
| CN209999738U (en) | buffer structure of hydraulic press for producing spherical pins | |
| CN204114294U (en) | Remote control Quick-closing check valve | |
| CN210770570U (en) | Three-position type straight stroke air cylinder | |
| CN209012512U (en) | A kind of large size ball valve aperture accuracy-control system | |
| CN108999833B (en) | Cylinder structure and locomotive | |
| CN206368863U (en) | Forming mill hydraulic control system | |
| CN112780633A (en) | Double-cylinder hydraulic oil cylinder | |
| CN105782160A (en) | Single-rod inlet and outlet bi-direction equal-load hydraulic cylinder | |
| CN102359648B (en) | Large- through-diameter rapid-discharging slow-intake gas valve | |
| CN201771889U (en) | Novel hydraulic cylinder with variable throttling buffer structure | |
| CN206206308U (en) | A kind of oil cylinder | |
| CN102537180B (en) | Proportional master control hydraulic damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191119 |