CN208468287U - A kind of hand-held type hydraulic breakup pick commutation valve body spool - Google Patents
A kind of hand-held type hydraulic breakup pick commutation valve body spool Download PDFInfo
- Publication number
- CN208468287U CN208468287U CN201820823629.XU CN201820823629U CN208468287U CN 208468287 U CN208468287 U CN 208468287U CN 201820823629 U CN201820823629 U CN 201820823629U CN 208468287 U CN208468287 U CN 208468287U
- Authority
- CN
- China
- Prior art keywords
- spool
- cylinder
- valve body
- hand
- type hydraulic
- 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
Abstract
The utility model discloses a kind of hand-held type hydraulic breakup pick commutation valve body spools, including the valve body that commutates, the lower part of the commutation valve body is provided with the first oil groove, cylinder in spool is provided in the middle part of side in the reversal valve body, the upper surface of cylinder is fixedly connected with cylinder on spool in the spool, the lower end of cylinder is fixedly connected with cylinder under spool in the spool, the lower end edge of cylinder is equipped with washer under the spool, the upper and lower ends of cylinder are provided with rubber ring in the spool, the second oil groove is provided in the spool on the outside of cylinder, support tube is provided on the inside of cylinder in the spool, spring is provided between cylinder in the support tube and spool, the support tube is fixedly connected by bracket with center-pole, the upper end of the center-pole is connect with lubricating oil pipe, the lubricating oil pipe is connect by branch pipe with oilhole, the side of the oilhole and oil guide groove connect It connects.Hand-held type hydraulic breakup pick commutation valve body spool, effectively reduces the friction between spool and valve body, prolongs the service life.
Description
Technical field
The utility model belongs to pick with spool technical field, and in particular to a kind of hand-held type hydraulic breakup pick commutation valve body valve
Core.
Background technique
Hydraulic breakup pick has the advantages that work efficiency is high, noise is small, highly reliable, small in volume, is suitable for pitch, water
The broken disintegration of road face, the crushing operation of armored concrete and 1 meter of diameter or less large volume building stones.Changing inside wherein
It is its critical component to valve body and spool, hydraulic directional valve is assemblied in the inside of pick body and outer cylinder, and top connects with valve plate
It closes, it is the core component of Hydraulic pick that lower part is engaged with flow cylinder, determines the frequency of reciprocating motion and its work of Hydraulic pick.
In valve body and valve core chamber, there are the gaps of very little；The oil for leading to impact piston upper end is closed and opened by the up and down motion of spool
Road, so as to achieve the purpose that piston up-down.
Hand-held type hydraulic breakup pick commutation valve body spool in use at present, due to the interior table in spool and valve body cooperation
Face is worn caused by not having enough lubrications and buffering, the two fit clearance that can be used for a long time because of tool to be increased, and is generated leakage, is caused
The reduced service life of Hydraulic pick.
Utility model content
The purpose of this utility model is to provide a kind of hand-held type hydraulic breakup pick commutation valve body spools, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the utility model provides the following technical solutions: a kind of hand-held type hydraulic breakup pick reversal valve
The lower part of body spool, including commutation valve body, the commutation valve body is provided with the first oil groove, sets in the middle part of side in the reversal valve body
It is equipped with cylinder in spool, the upper surface of cylinder is fixedly connected with cylinder on spool in the spool, the lower end of cylinder and spool in the spool
Lower cylinder is fixedly connected, and the lower end edge of cylinder is equipped with washer under the spool, and the upper and lower ends of cylinder are provided in the spool
Rubber ring is provided with the second oil groove on the outside of cylinder in the spool, is provided with support tube, the branch in the spool on the inside of cylinder
It is provided with spring between cylinder in support cylinder and spool, the support tube is fixedly connected by bracket with center-pole, the center-pole
Upper end is connect with lubricating oil pipe, and the lubricating oil pipe is connect by branch pipe with oilhole, and the side of the oilhole is connect with oil guide groove,
The oil guide groove is opened in the upper surface of fixed block, and the lower end of cylinder is fixedly mounted respectively under the upper end of cylinder and spool on the spool
There are valve plate and flow bucket.
Preferably, the side of the lubricating oil pipe is connected with four branch pipes, and four branch pipes respectively lead to four oilholes, and four
A oilhole is uniformly opened in the surrounding of cylinder on spool.
Preferably, spring is fixedly installed in the support tube and spool between cylinder and is no less than ten, and surround support tube
Outer surface be uniformly distributed.
Preferably, the upper and lower ends of the support tube by connecting plate be fixedly installed on spool respectively the lower end surface of cylinder and
The upper surface of cylinder under spool, and there are fit clearances between cylinder and change valve in the spool on the outside of support tube.
Preferably, the outer diameter of cylinder is greater than the outer diameter of cylinder under cylinder and spool on spool, and cylinder, spool on spool in the spool
The spool for collectively constituting reversal valve is fixedly mounted in cylinder from top to down under middle cylinder and spool.
Preferably, first oil groove is located at the outside of cylinder in spool, and the second oil groove is located at the inside of commutation valve body, and first
The width of oil groove and the second oil groove is not more than 1 millimeter, and depth is not less than 0.5 millimeter.
The technical effect and advantage of the utility model:
1, hand-held type hydraulic breakup pick commutation valve body spool, spool is up and down in commutation valve inner, first spool
The upper and lower ends of middle cylinder are provided with rubber ring, and the lower end of cylinder is fixedly installed with washer by edge under spool, guarantee
The steady up and down motion of spool and tentatively one buffering of offer, prevent the direct face in spool between cylinder and commutation valve body from connecing
Touching, and support tube is provided in spool on the inside of cylinder, and spring is provided in support tube and spool between cylinder, it is further to add
The buffering of strong spool and valve body guarantees that spool keeps being bonded for normal dynamics with commutation valve body always under hydraulic extruding, prevents
Only extrusion friction caused by pressure and cause abrasion aggravate.
2, the lower part of commutation valve body is provided with the first oil groove, is provided with the second oil groove on the outside of cylinder in spool, simultaneously
The upper end of center-pole is connect with lubricating oil pipe, and lubricating oil pipe is connect by branch pipe with oilhole, and the side of oilhole is connect with oil guide groove,
Oil guide groove is opened in the upper surface of fixed block, and while spool moves up and down, the lubricating oil pipe in center-pole upper end passes through branch
Pipe injects lubricating oil into oilhole, while lubricating oil is entered in the first oil groove and the second oil groove by oil guide groove, so that spool
Friction is moved up and down in reversal valve body and generates one layer of oil film in fit clearance, is played the role of buffering lubrication and is substantially reduced valve
Friction between core and valve body extends the service life of spool.
Detailed description of the invention
Fig. 1 is the main view of commutation valve body and spool；
Fig. 2 is the connection schematic diagram of cylinder and support tube in spool；
Fig. 3 is the top view of commutation valve body and spool；
Fig. 4 is the structural schematic diagram of the utility model.
In figure: 1 commutation valve body, cylinder under 2 spools, 3 flow buckets, 4 fit clearances, cylinder, 6 second oil grooves, 7 spools in 5 spools
Upper cylinder, 8 fixed blocks, 9 oil grooves, 10 center-poles, 11 springs, 12 washers, 13 brackets, 14 rubber rings, 15 valve plates, 16 edges, 17
First oil groove, 18 lubricating oil pipes, 19 branch pipes, 20 oilholes, 21 connecting plates, 22 support tubes.
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 describe, it is clear that the described embodiments are only a part of the embodiments 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
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of hand-held type hydraulic breakup pick commutation valve body spool as shown in Figs 1-4, including changes
To valve body 1, the lower part of the commutation valve body 1 is provided with the first oil groove 17, and the middle part of 1 inside of commutation valve body is provided with spool
Middle cylinder 5, the upper surface of cylinder 5 is fixedly connected with cylinder 7 on spool in the spool, cylinder 2 under the lower end of cylinder 5 and spool in the spool
It is fixedly connected, the lower end edge 16 of cylinder 2 is equipped with washer 12 under the spool, and the upper and lower ends of cylinder 5 are respectively provided in the spool
There is rubber ring 14, the outside of cylinder 5 is provided with the second oil groove 6 in the spool, and the inside of cylinder 5 is provided with support tube in the spool
22, spring 11 is provided in the support tube 22 and spool between cylinder 5, the support tube 22 is solid by bracket 13 and center-pole 10
Fixed connection, the upper end of the center-pole 10 are connect with lubricating oil pipe 18, and the lubricating oil pipe 18 is connected by branch pipe 19 and oilhole 20
It connects, the side of the oilhole 20 is connect with oil guide groove 9, and the oil guide groove 9 is opened in the upper surface of fixed block 8, on the spool
The lower end of cylinder 2 is fixedly installed with valve plate 15 and flow bucket 3 respectively under the upper end of cylinder 7 and spool.
Specifically, the side of the lubricating oil pipe 18 is connected with four branch pipes 19, and four branch pipes 19 respectively lead to four
Oilhole 20, four oilholes 20 are uniformly opened in the surrounding of cylinder 7 on spool, and the lubricating oil pipe 18 in 10 upper end of center-pole passes through
Branch pipe 19 injects lubricating oil into oilhole 20, while lubricating oil enters the first oil groove 17 and the second oil groove 6 by oil guide groove 9
In, so that spool moves up and down friction in commutation valve body 1 generates one layer of oil film in fit clearance, play the work of buffering lubrication
With the friction substantially reduced between spool and valve body, extend the service life of spool.
Specifically, being fixedly installed with spring 11 in the support tube 22 and spool between cylinder 5 is no less than ten, and around branch
The outer surface of support cylinder 22 is uniformly distributed, and the further buffering for reinforcing spool and the valve body 1 that commutates guarantees spool in hydraulic extruding
Under keep being bonded for normal dynamics with commutation valve body 1 always, prevent extrusion friction caused by pressure and abrasion caused to aggravate.
Specifically, the upper and lower ends of the support tube 22 are fixedly installed on spool under cylinder 7 respectively by connecting plate 21
The upper surface of cylinder 2 under end face and spool, and exist between cylinder 5 and change valve 1 between cooperation in the spool in the outside of support tube 22
Gap 4 guarantees that cylinder 5 is fixedly connected by support tube 22 with cylinder 2 under cylinder 7 on spool and spool in spool, is prevented hydraulic so that spring
5 deformed damaged of cylinder in 11 spools gone out.
Specifically, the outer diameter of cylinder 5 is greater than the outer diameter of cylinder 2 under cylinder 7 and spool on spool in the spool, and cylinder 7 on spool,
The spool main body for collectively constituting reversal valve is fixedly mounted in cylinder 2 from top to down under cylinder 5 and spool in spool, so that three different locations
Spool cylinder, be respectively formed different hydraulic forced areas, the movement velocity of hydraulic breakup pick performer improved, to improve
The working efficiency of hydraulic breakup pick.
Specifically, first oil groove 17 is located at the outside of cylinder 5 in spool, the second oil groove 6 is located at the interior of commutation valve body 1
The width of side, the first oil groove 17 and the second oil groove 6 is not more than 1 millimeter, and depth is not less than 0.5 millimeter, makes piston smoothly upper and lower
It moves back and forth, protects piston not frayed.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (6)
- The valve body spool 1. a kind of hand-held type hydraulic breakup pick commutates, including commutation valve body (1), it is characterised in that: the reversal valve The lower part of body (1) is provided with the first oil groove (17), and the middle part on the inside of commutation valve body (1) is provided with cylinder in spool (5), described The upper surface of cylinder (5) is fixedly connected with cylinder on spool (7) in spool, and cylinder (2) is solid under the lower end of cylinder (5) and spool in the spool Fixed to connect, the lower end edge (16) of cylinder (2) is equipped with washer (12) under the spool, the upper and lower ends of cylinder (5) in the spool It is provided with rubber ring (14), is provided with the second oil groove (6) on the outside of cylinder (5) in the spool, cylinder (5) is interior in the spool Side is provided with support tube (22), is provided with spring (11), the support tube between cylinder (5) in the support tube (22) and spool (22) it being fixedly connected by bracket (13) with center-pole (10), the upper end of the center-pole (10) is connect with lubricating oil pipe (18), The lubricating oil pipe (18) is connect by branch pipe (19) with oilhole (20), and the side of the oilhole (20) is connect with oil guide groove (9), The oil guide groove (9) is opened in the upper surface of fixed block (8), on the spool under the upper end of cylinder (7) and spool cylinder (2) lower end It is fixedly installed with valve plate (15) and flow bucket (3) respectively.
- The valve body spool 2. a kind of hand-held type hydraulic breakup pick according to claim 1 commutates, it is characterised in that: the lubrication The side of oil pipe (18) is connected with four branch pipes (19), and four branch pipes (19) respectively lead to four oilholes (20), described in four Oilhole (20) is uniformly opened in the surrounding of cylinder on spool (7).
- The valve body spool 3. a kind of hand-held type hydraulic breakup pick according to claim 1 commutates, it is characterised in that: the support Spring (11) is fixedly installed in cylinder (22) and spool between cylinder (5) and is no less than ten, and surrounds the outer surface of support tube (22) It is uniformly distributed.
- The valve body spool 4. a kind of hand-held type hydraulic breakup pick according to claim 1 commutates, it is characterised in that: the support Cylinder (22) upper and lower ends by connecting plate (21) be fixedly installed in respectively cylinder on spool (7) lower end surface and spool under cylinder (2) Upper surface, and there are fit clearance (4) between cylinder (5) and change valve (1) in the spool on the outside of support tube (22).
- The valve body spool 5. a kind of hand-held type hydraulic breakup pick according to claim 1 commutates, it is characterised in that: the spool The outer diameter of middle cylinder (5) is greater than the outer diameter of cylinder (2) under cylinder (7) and spool on spool, and cylinder (7) on spool, cylinder (5) and valve in spool The spool main body for collectively constituting reversal valve is fixedly mounted in cylinder (2) from top to down under core.
- The valve body spool 6. a kind of hand-held type hydraulic breakup pick according to claim 1 commutates, it is characterised in that: described first Oil groove (17) is located at the outside of cylinder (5) in spool, and the second oil groove (6) is located at the inside of commutation valve body (1), the first oil groove (17) and The width of second oil groove (6) is not more than 1 millimeter, and depth is not less than 0.5 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820823629.XU CN208468287U (en) | 2018-05-30 | 2018-05-30 | A kind of hand-held type hydraulic breakup pick commutation valve body spool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820823629.XU CN208468287U (en) | 2018-05-30 | 2018-05-30 | A kind of hand-held type hydraulic breakup pick commutation valve body spool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208468287U true CN208468287U (en) | 2019-02-05 |
Family
ID=65219557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820823629.XU Active CN208468287U (en) | 2018-05-30 | 2018-05-30 | A kind of hand-held type hydraulic breakup pick commutation valve body spool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208468287U (en) |
-
2018
- 2018-05-30 CN CN201820823629.XU patent/CN208468287U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105484963B (en) | Hydraulic pressure Pulp pump | |
| CN112780518B (en) | Double-cylinder pumping device with stroke controlled for viscous material | |
| AU2013265752B2 (en) | Percussion device | |
| CN208468287U (en) | A kind of hand-held type hydraulic breakup pick commutation valve body spool | |
| CN101963168A (en) | Hydro-cylinder for performing buffering by using floating one-way valve sheet | |
| CN111120739A (en) | Piston type sealing device for water suction effect of side suction port of trailing suction type dredge | |
| CN201730815U (en) | Non-leakage sealing assembly of reciprocating plunger pump | |
| CN203822741U (en) | Sealing structure of pumping cylinder rod | |
| CN110219334A (en) | A kind of hydraulic breaking hammer | |
| CN211371505U (en) | Piston type sealing device for water suction effect of side suction port of trailing suction type dredge | |
| CN215214178U (en) | Hydraulic cylinder with woven structure on inner surface of cylinder barrel | |
| CN202302042U (en) | Gate valve | |
| CN202300996U (en) | Piston, pumping mechanism and concrete pumping equipment | |
| CN203189033U (en) | Wear-resistant rubber disk and rotor type injection machine | |
| CN205478666U (en) | Pneumatic cylinder anti -clogging device | |
| CN214424814U (en) | Ultra-long stroke piston leakage-proof sealing combined structure for ultra-large tonnage telescopic oil cylinder | |
| CN219866267U (en) | Dust ring capable of reversely and rapidly releasing pressure for pump truck S valve bearing seat | |
| CN210218082U (en) | High-wear-resistance plunger sleeve structure | |
| CN219809074U (en) | Cylinder liner, engine and vehicle | |
| CN209781854U (en) | Novel tapering case of oil pressure ceramic plunger slush pump | |
| CN218862985U (en) | Wear-resistant piston for loader | |
| CN208203693U (en) | A kind of oil cylinder cylinder seat connection component | |
| CN2097276U (en) | Improved sand-preventing oil pump | |
| CN201884652U (en) | Double guide plunger sealing structure | |
| CN214305410U (en) | Grease overflow type sealing rotary valve device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |