CN212899213U - Piston quick-dismantling type hydraulic driving device for hydraulic pile hammer - Google Patents
Piston quick-dismantling type hydraulic driving device for hydraulic pile hammer Download PDFInfo
- Publication number
- CN212899213U CN212899213U CN202020939719.2U CN202020939719U CN212899213U CN 212899213 U CN212899213 U CN 212899213U CN 202020939719 U CN202020939719 U CN 202020939719U CN 212899213 U CN212899213 U CN 212899213U
- Authority
- CN
- China
- Prior art keywords
- piston
- oil
- hydraulic
- quick
- valve body
- 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.)
- Active
Links
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model relates to a but hydraulic pressure is piston quick detach formula hydraulic drive device for pile hammer, including first pneumatic cylinder, piston, the piston includes piston head, piston rod, piston head is equipped with the sealing washer locating hole, first pneumatic cylinder is connected with the valve body, the valve body is connected with the oil blanket lid, the valve body is equipped with the oil blanket mounting hole, the valve body is located the oil blanket mounting hole and is equipped with first inlet port, a serial communication port, be equipped with installation space between oil blanket mounting hole inner wall and the first oil pocket indoor wall of first pneumatic cylinder, oil blanket mounting hole internal diameter is greater than the first oil pocket internal diameter of first pneumatic cylinder, can dismantle in the installation space and be connected with the quick detach sleeve, the beneficial effects of the utility model are that: the quick-change sleeve is additionally arranged, so that the piston can be quickly changed, a sealing ring on the piston is not damaged, and the piston can be repeatedly utilized.
Description
Technical Field
The utility model relates to an engineering machine tool, concretely relates to but hydraulic pressure is piston quick detach formula hydraulic drive device for pile hammer.
Background
The hydraulic pile hammer is an impact pile driving machine, which mainly strikes a pile body in a free-falling mode, and after a preset height is lifted through a hydraulic system, acceleration energy is obtained from the hydraulic system to improve the impact speed to strike the pile body.
Hydraulic pile hammer mainly includes valve and pneumatic cylinder, prior art is shown as attached 1 to 2, because be equipped with the piston in the pneumatic cylinder, when the piston need be dismantled and change, because be equipped with oilhole 8 in the valve body, be equipped with the multiunit sealing washer on the piston simultaneously, when dismantling and change the piston, the sealing washer can be extruded in the oilhole 8, for avoiding sealing washer on the piston etc. by extrusion wearing and tearing, need whole dismantlement, dismantle the valve body is whole earlier, then change the piston dismantling, the process is loaded down with trivial details, it is consuming time long, extravagant manpower and materials.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough to above-mentioned prior art provides a but hydraulic pressure is quick detach formula hydraulic drive device of piston for pile hammer, adds the quick change sleeve, but makes piston quick replacement and do not harm the sealing washer on the piston, makes its reuse.
In order to achieve the above purpose, the utility model provides a following technical scheme: a piston quick-dismantling hydraulic driving device for a hydraulic pile hammer comprises a first hydraulic cylinder, wherein a first oil cavity with oil stored in the hollow interior of the first hydraulic cylinder is arranged in the first hydraulic cylinder, a piston capable of doing reciprocating linear motion along the axis of the first oil cavity is arranged in the first oil cavity, the piston comprises a piston head and piston rods arranged at two ends of the axis of the piston head, a plurality of groups of sealing ring positioning holes are arranged at the piston head, one end of the first hydraulic cylinder is connected with a valve body, the middle part of the valve body is detachably connected with an oil seal cover, the valve body is provided with an oil seal mounting hole capable of being detachably connected with the oil seal cover, a first oil inlet hole capable of being communicated with the first oil cavity is arranged in the oil seal mounting hole of the valve body, and the mounting space is arranged between the inner wall of the oil seal mounting hole and the inner wall of the first oil cavity of the, the oil seal installation hole internal diameter is greater than the first oil cavity internal diameter of first pneumatic cylinder, the quick detach sleeve can be dismantled in the installation space and be connected with.
Adopt above-mentioned technical scheme, through set up installation space in the valve body, can dismantle in the installation space and connect quick detach sleeve, quick detach sleeve replaces piston direct and valve body contact, can avoid sealing washer on the piston etc. to be pushed into in the all kinds of grooves in the valve body when the piston passes through quick detach sleeve, avoid damage such as sealing washer, make its circulated utilization, simultaneously compare with prior art, needn't dismantle wholly when dismantling the change piston, only need utilize quick detach sleeve can realize quick replacement piston, can not harm the sealing washer on the piston simultaneously.
The technical scheme can be further set as follows: the quick detach sleeve includes quick detach portion and spacing portion, the quick detach portion includes wears to locate the piston via hole at quick detach sleeve middle part along quick detach sleeve axis direction.
By adopting the technical scheme, the piston can be pulled out through the piston through hole by arranging the piston through hole in the quick-release sleeve; during the dismantlement, demolish the oil blanket earlier, insert the oil blanket mounting hole with quick detach sleeve, at last with the piston take out can, this in-process, quick detach sleeve replaces valve body and piston contact, plays the guard action to the piston, avoids all kinds of sealing washers on the piston etc. to be extruded into all kinds of downtheholes of connecting the price to avoid damaging sealing washer etc. can realize quick detach simultaneously, need not dismantle whole.
The technical scheme can be further set as follows: the limiting part comprises a limiting boss arranged at one end of the periphery of the quick-release sleeve.
By adopting the technical scheme, the quick-release sleeve can be limited by arranging the limiting part, and the quick-release sleeve can be prevented from falling into the piston.
The technical scheme can be further set as follows: inclined planes are arranged at the upper end and the lower end of the quick-release part.
By adopting the technical scheme, the inclined plane plays a guiding role, and the piston can quickly enter the quick-release sleeve.
The technical scheme can be further set as follows: the first hydraulic cylinder is linked with a second hydraulic cylinder, a second oil cavity is arranged between the first hydraulic cylinder and the second hydraulic cylinder, a second oil inlet hole which can be communicated with the second oil cavity is formed in the valve body corresponding to the second hydraulic cylinder, and an oil passing hole which can be communicated with the first oil cavity and the second oil cavity is formed in the first hydraulic cylinder relative to the other end of the valve body.
The technical scheme can be further set as follows: the valve body is provided with a first mounting hole capable of being in sealing connection with the first hydraulic cylinder, the first oil inlet hole is formed in the upper portion of the first mounting hole, the valve body is further provided with a second mounting hole capable of being in sealing connection with the second hydraulic cylinder, and the second oil inlet hole is formed in the upper portion of the second mounting hole.
Adopt above-mentioned technical scheme, through addding the second pneumatic cylinder, can increase the logical area of staying of fluid, reduce the temperature rise under the high pressure, adopt single pneumatic cylinder to release the oil circuit that needs to connect 8 among the prior art in order to realize reciprocating transport and the water conservancy diversion of fluid, and this structure only needs to connect 4 oil circuits, the reducible oil leak structure point of event, reduce the oil leak risk, simultaneously because the first pneumatic cylinder atress that is located the second pneumatic cylinder changes more complicatedly, the piston reciprocates in first pneumatic cylinder with fluid simultaneously, so during the pneumatic cylinder maintenance, only need change first pneumatic cylinder can, cost of maintenance reduces.
The technical scheme can be further set as follows: and a reinforcing support body is arranged on the periphery of the middle part of the second hydraulic cylinder.
The technical scheme can be further set as follows: the reinforcing support bodies respectively correspond to reinforcing ribs at two ends of the second hydraulic cylinder.
Adopt above-mentioned technical scheme, because the pneumatic cylinder is whole longer, atress and self application of force are great, through strengthening the supporter in second pneumatic cylinder middle part periphery setting, can strengthen pneumatic cylinder overall stability, delay the whole deformation of pneumatic cylinder, prolong its life.
The utility model has the advantages that: by adopting the technical scheme, the mounting space is arranged in the valve body, and the quick-release sleeve is detachably connected in the mounting space, so that the sealing ring and the like at the head of the piston can be prevented from being damaged and can be recycled; by additionally arranging the second hydraulic cylinder, the through area of oil can be enlarged, the temperature rise under high pressure can be reduced, oil leakage structure points can be reduced, the oil leakage risk can be reduced, and the maintenance cost can be reduced; the supporting body is strengthened through the arrangement, the overall stability of the hydraulic cylinder can be enhanced, the overall deformation of the hydraulic cylinder is delayed, and the service life of the hydraulic cylinder is prolonged.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic cross-sectional front view of the prior art;
FIG. 2 is a schematic cross-sectional view of a prior art valve body;
fig. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a perspective view of the quick release sleeve of the present invention;
fig. 5 is a schematic sectional view of the valve body of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 3 to 5, a quick-release hydraulic driving device for a piston 2 of a hydraulic pile hammer includes a first hydraulic cylinder 1, a first oil chamber 11 with oil stored therein is disposed in the first hydraulic cylinder 1, a piston 2 capable of performing reciprocating linear motion along an axis of the first oil chamber 11 is disposed in the first oil chamber 11, the piston 2 includes a piston head 21 and piston rods 22 disposed at two ends of the axis of the piston head 21, a seal ring positioning hole 211 is disposed on the piston head 21, a valve body 3 is connected to one end of the first hydraulic cylinder 1, an oil seal cover is detachably connected to a middle portion of the valve body 3, the valve body 3 is provided with an oil seal mounting hole 31 detachably connected to the oil seal cover, a first oil inlet hole 32 capable of communicating with the first oil chamber 11 is disposed in the oil seal mounting hole 31, a mounting space 33 is disposed between an inner wall of the oil seal mounting hole 31 and an inner wall of the first oil chamber 11 of the first hydraulic cylinder 1 in a direction perpendicular to the axis of the oil seal mounting hole 31, the internal diameter of the oil seal mounting hole 31 is greater than the 11 internal diameters of the first oil chamber of the first hydraulic cylinder 1, the quick-release sleeve 4 can be detachably connected in the mounting space 33, the quick-release sleeve 4 comprises a quick-release portion and a limiting portion, the quick-release portion comprises a piston via hole 41 which is arranged at the middle part of the quick-release sleeve 4 in a penetrating manner along the axial direction of the quick-release sleeve 4, the internal diameter of the piston via hole 41 is the same as the internal diameter of the first oil chamber 11, the limiting portion comprises a limiting boss 42 arranged at one end of the periphery of the quick-release sleeve 4, and inclined.
The first hydraulic cylinder 1 is linked with a second hydraulic cylinder 5, a second oil chamber 51 is arranged between the first hydraulic cylinder 1 and the second hydraulic cylinder 5, the valve body 3 is provided with a second oil inlet hole 34 corresponding to the second hydraulic cylinder 5 to be communicated with the second oil chamber 51, the other end of the first hydraulic cylinder 1 opposite to the valve body 3 is provided with an oil passing hole 12 for communicating the first oil chamber 11 with the second oil chamber 51, a first mounting hole 35 capable of being hermetically connected with the first hydraulic cylinder 1 is arranged in the valve body 3, the first oil inlet hole 32 is arranged at the upper part of the first mounting hole 35, the valve body 3 is further provided with a second mounting hole 36 which can be connected with the second hydraulic cylinder 5 in a sealing manner, the second oil inlet hole 34 is arranged at the upper part of the second mounting hole 36, the periphery of the middle part of the second hydraulic cylinder 5 is provided with a reinforced support body 6, and the reinforced support body 6 respectively corresponds to the reinforcing ribs 7 at two ends of the second hydraulic cylinder 5.
Claims (8)
1. The utility model provides a but hydraulic pile hammer is with piston quick detach formula hydraulic drive device, includes first pneumatic cylinder, be equipped with the first oil cavity that inside cavity storage has fluid in the first pneumatic cylinder, the piston that can follow first oil cavity axis and make reciprocating linear motion is indoor to be equipped with, the piston includes piston head and arranges the piston rod at piston head axis both ends in, piston head is equipped with a plurality of sealing washer locating holes, first pneumatic cylinder one end is connected with the valve body, the valve body middle part can be dismantled and be connected with the oil blanket lid, the valve body is equipped with can dismantle the oil blanket mounting hole of being connected with the oil blanket lid, the valve body is located the oil blanket mounting hole and is equipped with the first inlet port that can switch on with first oil cavity, its characterized in that: perpendicular to oil blanket mounting hole axis direction is equipped with installation space between oil blanket mounting hole inner wall and the first oil pocket indoor wall of first pneumatic cylinder, oil blanket mounting hole internal diameter is greater than the first oil pocket internal diameter of first pneumatic cylinder, the detachable quick detach sleeve that is connected with in the installation space.
2. The piston quick-release type hydraulic driving device for the hydraulic pile driving hammer as claimed in claim 1, wherein: the quick detach sleeve includes quick detach portion and spacing portion, the quick detach portion includes wears to locate the piston via hole at quick detach sleeve middle part along quick detach sleeve axis direction.
3. The piston quick-release type hydraulic driving device for the hydraulic pile driving hammer as claimed in claim 2, wherein: the limiting part comprises a limiting boss arranged at one end of the periphery of the quick-release sleeve.
4. The piston quick-release type hydraulic driving device for the hydraulic pile driving hammer as claimed in claim 2, wherein: inclined planes are arranged at the upper end and the lower end of the quick-release part.
5. The piston quick-release type hydraulic driving device for the hydraulic pile driving hammer as claimed in claim 1, wherein: the first hydraulic cylinder is linked with a second hydraulic cylinder, a second oil cavity is arranged between the first hydraulic cylinder and the second hydraulic cylinder, a second oil inlet hole which can be communicated with the second oil cavity is formed in the valve body corresponding to the second hydraulic cylinder, and an oil passing hole which can be communicated with the first oil cavity and the second oil cavity is formed in the first hydraulic cylinder relative to the other end of the valve body.
6. The piston quick-release type hydraulic driving device for the hydraulic pile driving hammer as claimed in claim 5, wherein: the valve body is provided with a first mounting hole capable of being in sealing connection with the first hydraulic cylinder, the first oil inlet hole is formed in the upper portion of the first mounting hole, the valve body is further provided with a second mounting hole capable of being in sealing connection with the second hydraulic cylinder, and the second oil inlet hole is formed in the upper portion of the second mounting hole.
7. The piston quick-release type hydraulic driving device for the hydraulic pile driving hammer as claimed in claim 5, wherein: and a reinforcing support body is arranged on the periphery of the middle part of the second hydraulic cylinder.
8. The piston quick-release hydraulic driving device for the hydraulic pile driving hammer as claimed in claim 7, wherein: the reinforcing support bodies respectively correspond to reinforcing ribs at two ends of the second hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020939719.2U CN212899213U (en) | 2020-05-28 | 2020-05-28 | Piston quick-dismantling type hydraulic driving device for hydraulic pile hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020939719.2U CN212899213U (en) | 2020-05-28 | 2020-05-28 | Piston quick-dismantling type hydraulic driving device for hydraulic pile hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212899213U true CN212899213U (en) | 2021-04-06 |
Family
ID=75267171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020939719.2U Active CN212899213U (en) | 2020-05-28 | 2020-05-28 | Piston quick-dismantling type hydraulic driving device for hydraulic pile hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212899213U (en) |
-
2020
- 2020-05-28 CN CN202020939719.2U patent/CN212899213U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202690570U (en) | Hydraulic cylinder, hydraulic circuit, material pumping system and engineering machinery | |
| CN216008879U (en) | Gland, hydraulic end and plunger pump | |
| CN103174699A (en) | Servo hydraulic cylinder | |
| CN113898574A (en) | Gland, hydraulic end and plunger pump | |
| CN212899213U (en) | Piston quick-dismantling type hydraulic driving device for hydraulic pile hammer | |
| CN110219334A (en) | A kind of hydraulic breaking hammer | |
| CN110219851B (en) | Piston guide structure of hydraulic breaking hammer | |
| CN210160224U (en) | High-strength main shaft structure | |
| CN204239224U (en) | A kind of high-pressure plunger oil seal of pull rod assembly | |
| CN215804368U (en) | High-pressure and high-temperature hard rock drilling device | |
| CN212775014U (en) | Cylinder body seal structure in hydraulic breaking hammer | |
| CN115405586A (en) | Middle cylinder assembly of hydraulic breaking hammer | |
| CN213419613U (en) | Bushing type wear-resistant stop pin | |
| CN213700000U (en) | Supporting structure of quartering hammer | |
| CN102678540A (en) | Hydraulic oil cylinder, hydraulic oil circuit, material pumping system, and engineering machinery | |
| CN212297112U (en) | Hydraulic driving device of hydraulic pile hammer | |
| CN108239978B (en) | Differential hydraulic pile hammer | |
| CN109281604B (en) | Striking machine core for hydraulic crushing and hydraulic crushing hammer | |
| CN214888058U (en) | Quick-change oil cylinder | |
| CN217814247U (en) | Cylinder structure in hydraulic breaking hammer | |
| CN111577703A (en) | Hydraulic driving device of hydraulic pile hammer | |
| CN219318185U (en) | Hydraulic tamper refitted breaking hammer with self-lubricating structure | |
| CN219560914U (en) | Hydraulic locking device | |
| CN214171002U (en) | Anti-leakage die assembly oil cylinder of injection blow molding machine | |
| CN213332056U (en) | Linear bearing for high-pressure grouting pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |