CN208966559U - Spool, delay braking valve and plunger pump - Google Patents
Spool, delay braking valve and plunger pump Download PDFInfo
- Publication number
- CN208966559U CN208966559U CN201821494581.9U CN201821494581U CN208966559U CN 208966559 U CN208966559 U CN 208966559U CN 201821494581 U CN201821494581 U CN 201821494581U CN 208966559 U CN208966559 U CN 208966559U
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- core
- draining
- spool
- drain pan
- oilhole
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Abstract
The utility model provides a kind of spool, delay braking valve and plunger pump, which includes core shell and the core that is placed in core shell, is provided with draining component on core；Wherein, core shell has the inlet and outlet being oppositely arranged, and core includes the first end and second end being oppositely arranged, and inlet and outlet is arranged correspondingly with first end and second end；Draining component includes the drain pan being arranged on core circumferential surface, is throttled by drain pan to oil liquid.
Description
Technical field
The utility model relates to Hydraulic Fields, in particular to a kind of spool, delay braking valve and plunger pump.
Background technique
Delay braking valve be in hydraulic rotary motor be used for delay braking valve body, the effect of delay braking valve be make it is hydraulic
Rotary motor rotation enters back into on-position after stopping, and movable friction plate therein and static friction plate is thus avoided to deposit between
Dynamic friction is generated, and then in very big pressure to prevent causing very big abrasion to hydraulic rotary motor and its control for brake component
Even directly contribute damage.
By taking the patent of Publication No. CN202971387U as an example, a kind of hydraulic motor with time-lag action of the patent disclosure
Brake control.Fig. 1 is the schematic diagram for the hydraulic motor brake control that the prior art provides, shown referring to Fig.1, the control
The delay component of device processed includes delay spool 15, damping plug 14, spring 16 and strainer 12, wherein delay spool is from motor shell
One end of body is disposed with spring mounting hole, damping plug mounting hole and strainer fixation hole to the one end for controlling valve chest；Spring
The aperture of mounting hole is greater than the aperture of damping plug mounting hole, and spring is arranged in spring mounting hole, and spring one end is fixed on motor
On shell；Damping plug is fixed in damping plug mounting hole, and damping hole is provided on damping plug；The diameter of strainer is pacified greater than damping plug
The aperture in hole is filled, strainer is fixed in strainer fixation hole.
Above-mentioned delay component is set, and the oil liquid in brake piston seal chamber will be by the delay group during flowing back to fuel tank
Part, the damping hole in component on damping plug that is delayed can effectively limit the flow that oil liquid flows back to fuel tank, simultaneously because damping hole
Damping action, generate certain pressure difference before and after delay component, when the pressure difference reaches a certain level, delay spool overcomes spring
Active force move right, be even switched off the path that oil liquid flows back to mailbox to turn down, until damping hole before and after pressure difference and bullet
The spring force of spring balances each other, and oil liquid could gradually flow back to fuel tank.
The motor brake control of above-mentioned patent disclosure, although realizing the purpose of delay braking, for realizing
The structure of the delay component of delay braking is excessively complicated, causes maintenance cost and difficulty high, while causing processing cost and difficulty
It is high.
Utility model content
The utility model provides a kind of spool, it is intended to solve the above-mentioned technical problems in the prior art.
The utility model provides a kind of spool, which includes core shell and the core that is placed in the core shell, the core
On be provided with draining component；Wherein,
The core shell has the inlet and outlet being oppositely arranged, and the core includes the first end being oppositely arranged and second
End, the import and the outlet are arranged correspondingly with the first end and the second end；
The draining component includes the drain pan being arranged on the core circumferential surface, is saved by the drain pan to oil liquid
Stream.
Further, the second end is taper and is clamped with the outlet；By the first end to the second end
Direction, the draining component include sequentially connected draining group and the drain pan, and the drain pan is arranged in the second end
Male cone (strobilus masculinus) on.
Further, the draining group includes oil leak hole group；The oil leak hole group includes the first oilhole of angled setting
With the second oilhole；
By the first end to the direction of the second end, first oilhole, second oilhole and the drain pan
It is sequentially connected.
Further, first oilhole is along the axially extending of the core；
Second oilhole the radially extending along the core.
Further, the draining group further includes the draining plane being formed on the outer peripheral surface of the core；
The inner wall interval of the draining plane and the core shell forms draining space, second oilhole and the drain pan
It is connected by the draining plane.
Further, the draining group includes respectively along two be diametrically arranged the draining plane of the core and two
A drain pan；
Two draining planes are connect correspondingly with the both ends of second oilhole；
Two draining planes are connect correspondingly with two drain pans.
Further, the core is ball valve core；
The drain pan is annular groove.
Further, the cross-sectional shape of the drain pan is triangle.
Further, the core shell is screw plug.
Spool provided by the utility model includes core shell and the core that is placed in core shell, is provided with draining component on core；
Wherein, core shell has the inlet and outlet being oppositely arranged, and core includes the first end and second end being oppositely arranged, inlet and outlet
It is arranged correspondingly with first end and second end；Draining component includes the drain pan being arranged on core circumferential surface, by the draining
Slot throttles to oil liquid.
Wherein, the spool that core shell and core are constituted is equivalent to a throttle part, which passes through letting out on core
Oil groove throttles.The entire spool is placed in the control port of delay braking valve or other Hydraulic Elements, to substitute knot
The brake spool or throttling valve core of structure complexity.It is provided by the utility model compared to the patent of Publication No. CN202971387U
Valve core structure is simple, can directly be installed in existing delay braking valve to realize braking, reduces delay spool, damping
The components such as plug, spring and strainer can simplify the structure of entire brake valve, reduce maintenance cost.
The another object of the utility model, which also resides in, provides a kind of delay braking valve, which includes as described above
Spool.
Further, including valve body and guide's slide core；
The piston chamber that the valve body has brake chamber and connect with the brake chamber, the spool are placed in the brake chamber
Interior, guide's slide core is placed in the piston chamber；
One end of the brake chamber is provided with contacting wall, and the oil-through hole through its thickness is provided in the contacting wall, described
Drain pan connection corresponding with the oil-through hole in the draining component of spool.
The beneficial effect of delay braking valve provided by the utility model compared with the prior art is same as the utility model offer
Spool than in the beneficial effect of the prior art, details are not described herein again.
The another object of the utility model, which also resides in, provides a kind of plunger pump, which includes spool as described above；
Alternatively,
Including delay braking valve as described above.
The beneficial effect of plunger pump provided by the utility model compared with the prior art, is same as valve provided by the utility model
Core is than in the beneficial effect of the prior art, details are not described herein again.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages are illustrating
Structure specifically noted by book, claims and attached drawing is achieved and obtained.
Detailed description of the invention
It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not
It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is the schematic diagram for the hydraulic motor brake control that the prior art provides；
Fig. 2 is the schematic diagram for the delay braking valve that the utility model embodiment provides；
Fig. 3 is the schematic diagram of the core for the spool that the utility model embodiment provides；
Fig. 4 is the left view of Fig. 3；
Fig. 5 is the B-B cross-sectional view of Fig. 3.
Icon:
10- core shell；20- core；201- drain pan；202- draining group；The first oilhole of 2021-；The second oilhole of 2022-；
2023- draining plane；100- spool；200- guide's slide core.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Fig. 2 is the schematic diagram for the delay braking valve that the utility model embodiment provides；Fig. 3 is the utility model embodiment party
The schematic diagram of the core for the spool that formula provides；Fig. 4 is the left view of Fig. 3；Fig. 5 is the B-B cross-sectional view of Fig. 3.
The structure and working principle of delay braking valve applied by spool is first described in detail in the present embodiment, to mention to the present embodiment
The application of the spool of confession, which is made, to be elaborated.
Referring to shown in Fig. 2, delay braking valve provided in this embodiment, when SH hydraulic fluid port leads to guide oil, guide's slide core is in
Right positions, the control oil from PG hydraulic fluid port successively pass through e-f-b-a oil duct, finally reach A mouthfuls, open motor brake,
D to B mouthfuls of oil duct is simultaneously closed off, oil liquid is without spool and the drain pan of spool at this time；When the obstructed guide oil of SH hydraulic fluid port, first
Slide guide core is in leftward position, and e oil duct to f oil duct is blocked, and opens simultaneously d to B mouthfuls of channel, at this point, motor brake
Pressure oil is entered by A mouthfuls in the channel a of valve body, by a-b oil duct, reaches spool provided in this embodiment, letting out through spool
Oil groove throttling, throttling produces delay time at this time, and oil liquid finally reaches B mouthfuls of progress drainings using C-d-B after throttling.
Spool 100 provided in this embodiment is mounted in the brake chamber of braking valve body, and above-mentioned guide's slide core 200 is installed
In piston chamber, brake chamber and piston chamber are arranged in parallel and are connected by d oil duct.
Referring to shown in Fig. 2 to Fig. 5, in the present embodiment, spool 100 includes core shell 10 and the core 20 being placed in core shell 10,
Draining component is provided on core 20；Wherein, core shell 10 has the inlet and outlet being oppositely arranged, and core 20 includes being oppositely arranged
First end and second end, inlet and outlet is arranged correspondingly with first end and second end；Draining component includes that setting exists
Drain pan 201 on 20 circumferential surface of core, throttles to oil liquid by drain pan 201.
Wherein, the spool that core shell 10 and core 20 are constituted is equivalent to a throttle part, which passes through on core
Drain pan throttle.The entire spool is placed in the control port of delay braking valve or other Hydraulic Elements, to replace
For complicated brake spool or throttling valve core.Compared to the patent of Publication No. CN202971387U, the utility model is mentioned
The valve core structure of confession is simple, can directly be installed in existing delay braking valve to realize braking, reduces delay spool, resistance
The components such as Ni Sai, spring and strainer can simplify the structure of entire brake valve, reduce maintenance cost.
Wherein, core 20 be preferably poppet valve core or ball valve core, core shell 10 be preferably screw plug, the screw plug by external screw thread with
The inner wall of brake chamber connects.
Wherein, screw plug has the first cavity and the second cavity, wherein the first cavity is six for accommodating core, the second cavity
The spool is placed in the brake chamber of valve body by angle cavity for installing the spool by installation part.First cavity and the second cavity
Between by above-mentioned outlet, the ring diameter of the ring diameter of the outlet less than the first cavity and the second cavity.
Wherein, when core 20 is poppet valve core, the second end of core 20 is taper and is clamped with outlet, by the first of core 20
It holds to the direction of the second end of core, draining component includes sequentially connected draining group 202 and drain pan 201, and drain pan 201 is set
It sets on the male cone (strobilus masculinus) of second end, which matches the channel to form draining with the opening's edge of outlet, and oil liquid passes through the channel
It is intracavitary into C, and then B mouthfuls are reached by d oil duct.Preferably, the cross-sectional shape of drain pan 201 is triangle, it is not easy to quilt
Foreign matter and impurity clamping stagnation can make brake lag valve long-term work, to reduce maintenance and cleaning frequency.
In the present embodiment, draining group 202 includes oil leak hole group；Oil leak hole group includes the first oilhole 2021 of angled setting
With the second oilhole 2022；By the direction of first end to second end, the first oilhole 2021, the second oilhole 2022 and drain pan 201 according to
Secondary connection.Preferably, the first oilhole 2021 is along the axially extending of core 20, the second radially extending along core 20 of oilhole 2022,
Second oilhole 2022 diametrically runs through core 20.
Draining group 202 further includes the draining plane 2023 being formed on the outer peripheral surface of core 20；Draining plane 2023 and core
The inner wall interval of shell 10 forms draining space, and the second oilhole 2022 is connect with drain pan 201 by draining plane 2023, as a result,
Oil liquid is guided by the center of core 20 to outer peripheral surface by the first oilhole 2021, the second oilhole 2022 and drain pan 201
On, drain pan 201 is entered by the position of outer peripheral surface, and then realize the purpose of delay and throttling.
Preferably, draining group 202 includes respectively along two be diametrically arranged the draining plane 2023 and two of core 20
A drain pan 201；Two draining planes 2023 are connect correspondingly with the both ends of the second oilhole 2022；Two draining planes
2023 connect correspondingly with two drain pans 201.
Certainly, in other embodiments, the quantity of drain pan can be one, a drain pan and one of draining plane
Connection.
Wherein, core 20 is ball valve core, and drain pan 201 is annular groove, by the length of the extending direction of annular groove and core shell 10
It is consistent to spend direction, the oil liquid from b oil duct is guided by annular groove to outlet.
The another object of the utility model embodiment, which also resides in, provides a kind of delay braking valve, which includes such as
On spool.
In the present embodiment, brake valve includes valve body and guide's slide core 200, and valve body has a brake chamber and connect with brake chamber
Piston chamber, spool 100 are placed in brake chamber, and guide's slide core 200 is placed in piston chamber；One end of brake chamber is provided with contacting wall,
The oil-through hole through its thickness is provided in the contacting wall, the drain pan 201 in the draining component of spool 100 and the oil-through hole pair
It should be connected to.
It is practical new to be same as this for the beneficial effect of delay braking valve provided by the embodiment of the utility model compared with the prior art
The spool that type embodiment provides is than in the beneficial effect of the prior art, details are not described herein again.
The another object of the utility model embodiment, which also resides in, provides a kind of plunger pump, which includes valve as above
Core, or including delay braking valve as above.
The beneficial effect of plunger pump provided by the embodiment of the utility model compared with the prior art is same as the utility model reality
The spool of example offer is applied than in the beneficial effect of the prior art, details are not described herein again.
Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for
For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model
Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (12)
1. a kind of spool, it is characterised in that: including core shell (10) and the core (20) being placed in the core shell (10), the core
(20) draining component is provided on；Wherein,
The core shell (10) has the inlet and outlet that is oppositely arranged, and the core (20) includes the first end being oppositely arranged and the
Two ends, the import and the outlet are arranged correspondingly with the first end and the second end；
The draining component includes the drain pan (201) being arranged on the core (20) circumferential surface, right by the drain pan (201)
Oil liquid throttles.
2. spool according to claim 1, it is characterised in that:
The second end is taper and is clamped with the outlet；By the first end to the direction of the second end, the draining
Component includes sequentially connected draining group (202) and the drain pan (201), and the drain pan (201) is arranged described second
On the male cone (strobilus masculinus) at end.
3. spool according to claim 2, it is characterised in that:
The draining group (202) includes oil leak hole group；The oil leak hole group include angled setting the first oilhole (2021) and
Second oilhole (2022)；
By the first end to the direction of the second end, first oilhole (2021), second oilhole (2022) and institute
Drain pan (201) is stated to be sequentially connected.
4. spool according to claim 3, it is characterised in that:
First oilhole (2021) is along the axially extending of the core (20)；
Second oilhole (2022) the radially extending along the core (20).
5. spool according to claim 3, it is characterised in that:
The draining group (202) further includes the draining plane (2023) being formed on the outer peripheral surface of the core (20)；
The inner wall interval of the draining plane (2023) and the core shell (10) forms draining space, second oilhole (2022)
It is connect with the drain pan (201) by the draining plane (2023).
6. spool according to claim 5, it is characterised in that:
The draining group (202) include respectively along two be diametrically arranged the draining plane (2023) of the core (20) and
Two drain pans (201)；
Two draining planes (2023) connect correspondingly with the both ends of second oilhole (2022)；
Two draining planes (2023) connect correspondingly with two drain pans (201).
7. spool according to claim 1, it is characterised in that:
The core (20) is ball valve core；
The drain pan (201) is annular groove.
8. spool according to claim 2, it is characterised in that: the cross-sectional shape of the drain pan (201) is triangle.
9. spool according to claim 1, it is characterised in that: the core shell (10) is screw plug.
10. a kind of delay braking valve, it is characterised in that: including spool as claimed in any one of claims 1-9 wherein (100).
11. delay braking valve according to claim 10, it is characterised in that: including valve body and guide's slide core (200)；
The piston chamber that the valve body has brake chamber and connect with the brake chamber, the spool (100) are placed in the brake chamber
Interior, guide's slide core (200) is placed in the piston chamber；
One end of the brake chamber is provided with contacting wall, and the oil-through hole through its thickness, the spool are provided in the contacting wall
(100) drain pan (201) connection corresponding with the oil-through hole in draining component.
12. a kind of plunger pump, it is characterised in that: including spool as claimed in any one of claims 1-9 wherein (100)；Or
Including the delay braking valve as described in any one of claim 10-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821494581.9U CN208966559U (en) | 2018-09-12 | 2018-09-12 | Spool, delay braking valve and plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821494581.9U CN208966559U (en) | 2018-09-12 | 2018-09-12 | Spool, delay braking valve and plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208966559U true CN208966559U (en) | 2019-06-11 |
Family
ID=66755033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821494581.9U Active CN208966559U (en) | 2018-09-12 | 2018-09-12 | Spool, delay braking valve and plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208966559U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799094A (en) * | 2018-09-12 | 2018-11-13 | 杭州力龙液压有限公司 | Spool, delay braking valve and plunger pump |
-
2018
- 2018-09-12 CN CN201821494581.9U patent/CN208966559U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799094A (en) * | 2018-09-12 | 2018-11-13 | 杭州力龙液压有限公司 | Spool, delay braking valve and plunger pump |
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