CN209164225U - A kind of balanced valve of split type structure - Google Patents
A kind of balanced valve of split type structure Download PDFInfo
- Publication number
- CN209164225U CN209164225U CN201822009525.8U CN201822009525U CN209164225U CN 209164225 U CN209164225 U CN 209164225U CN 201822009525 U CN201822009525 U CN 201822009525U CN 209164225 U CN209164225 U CN 209164225U
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- spring
- valve
- valve body
- piston
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Abstract
The utility model discloses a kind of balanced valves of split type structure, including spring pocket, the lateral wall right part of the spring pocket is equipped with spring pocket sealing ring, the left end of the spring pocket is threaded with swivel nut, middle part of the swivel nut or so, which is run through, is equipped with screw rod, the lateral wall left part of the screw rod is threaded with nut, the inside left end of the spring pocket is equipped with piston, the outboard sidewalls of the piston are equipped with piston seal, the right end of the spring pocket is threaded with valve body, the lateral wall bilateral symmetry of the valve body is equipped with valve seals, the inside left end of the valve body is equipped with spring pad, the inside of the spring pocket and between piston and spring pad be equipped with pressure spring, the inside of the valve body and the right end of spring pad be equipped with valve pocket, the lateral wall left part of the valve pocket and the inner sidewall right part of valve body are equipped with valve pocket sealing ring, this is practical It is novel to simplify production and processing technology, it ensure that precision, saved production cost, effectively improve the qualification rate of product.
Description
Technical field
The utility model relates to balanced valve technical field, specific field is a kind of balanced valve of split type structure.
Background technique
Balanced valve is a kind of valve of specific function, and valve itself is only have using function and place without special character
Difference, in certain industries, balanced valve is exactly the combination valve of hydraulic control one-way valve and safety valve, enters hydraulic cylinder piston to prevent
The blocking device that the liquid of chamber and rod end chamber is flow backwards.When plunger shaft or rod end chamber are more than set pressure, safety valve pressure release,
Play the role of protecting hydraulic cylinder, for existing balance valve body using monolithic construction, body length is long, two inner hole rulers
Very little, surface roughness and Geometrical Tolerance Principle are all very high, are extremely difficult to Design Requirement Drawing, also difficulty produces qualified products.
Utility model content
The purpose of this utility model is to provide a kind of balanced valves of split type structure, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the utility model provides the following technical solutions: a kind of balanced valve of split type structure, including
The lateral wall right part of spring pocket, the spring pocket is equipped with spring pocket sealing ring, and the left end of the spring pocket is threaded with swivel nut,
Middle part of the swivel nut or so, which is run through, is equipped with screw rod, and the lateral wall left part of the screw rod is threaded with nut, the spring pocket
Inside left end be equipped with piston, the outboard sidewalls of the piston are equipped with piston seal, and the right end screw thread of the spring pocket connects
It is connected to valve body, the lateral wall bilateral symmetry of the valve body is equipped with valve seals, and the inside left end of the valve body is equipped with spring pad,
The inside of the spring pocket and between piston and spring pad be equipped with pressure spring, the inside of the valve body and the right side in spring pad
End is equipped with valve pocket, and the lateral wall left part of the valve pocket and the inner sidewall right part of valve body are equipped with valve pocket sealing ring, the spring pad
Inside be equipped with spring base, reset spring is equipped between the spring base and valve body, inside of the valve pocket or so is through being equipped with
Valve rod, the lateral wall left part of the valve rod are equipped with check ring, and the right end of the valve body is equipped with cylinder ports, the side wall of the valve body
For the side wall right part of right part and valve pocket respectively uniformly through pressure oil port is equipped with, the side wall left part of the valve body, which runs through, is equipped with control liquid
Mouthful.
Preferably, the left end of the swivel nut is threaded with shield.
Preferably, the spring pocket sealing ring, piston seal, valve seals and valve pocket sealing ring are by nitrile rubber
Material is made.
Preferably, the pressure spring is made of alloy spring wire 60Si2Mn material.
Preferably, the outer portion to form balanced valve is connected between the spring pocket and valve body by fine thread.
Compared with prior art, the utility model has the beneficial effects that a kind of balanced valve of split type structure, by existing knot
Valve body in structure is decomposed into two parts, respectively spring pocket and valve body, and two parts are connected with fine thread, and junction applies sealing
Glue sealing, this structure greatly simplifie production and processing technology, ensure that precision, saved production cost, effectively improved
The qualification rate of product.
Detailed description of the invention
Fig. 1 is the agent structure schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model spring pocket；
Fig. 3 is the structural schematic diagram of the utility model valve rod.
In figure: 1- spring pocket, 2- spring pocket sealing ring, 3- swivel nut, 4- screw rod, 5- nut, 6- piston, 7- piston seal
Circle, 8- valve body, 9- valve seals, 10- spring pad, 11- pressure spring, 12- valve pocket, 13- valve pocket sealing ring, 14- spring base,
15- reset spring, 16- valve rod, 17- check ring, 18- cylinder ports, 19- pressure oil port, 20- control liquid mouth, 21- shield.
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.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of balanced valve of split type structure, including bullet
Spring set 1, is divided into the mode that spring pocket is connect with valve body for the valve body of script, and two parts part is threadedly attached in one
It rises, junction applies sealant sealing, this structure greatly simplifies production and processing technology, ensure that precision, saved and be produced into
This, effectively improves the qualification rate of product, and the lateral wall right part of the spring pocket is equipped with spring pocket sealing ring 2, with outside
When device connects, guarantee the airtightness of junction, the left end of the spring pocket is threaded with swivel nut 3, and swivel nut is threaded in
The left end of spring pocket, passes through for screw rod, and middle part of the swivel nut or so, which is run through, is equipped with screw rod 4, and the middle part of screw rod is equipped with prominent
Rising can be mobile with piston, and the lateral wall left part of the screw rod is threaded with nut 5, can drive spiral shell by adjusting nut
Bar rotation, so that screw rod be driven to move left and right, the inside left end of the spring pocket is equipped with piston 6, and the left end of piston is equipped with groove,
For accommodating the protrusion on screw rod, bolt moves right can move right with piston, and the outboard sidewalls of the piston are all provided with
There is piston seal 7, piston seal ensure that the leakproofness of junction between piston and screw rod, ensure that piston and spring pocket
Between junction leakproofness, the right end of the spring pocket is threaded with valve body 8, and valve body and spring pocket are threaded in one
It rises, coats the stability that sealant sealing guarantees connection in junction, it is close that the lateral wall bilateral symmetry of the valve body is equipped with valve body
Seal 9, valve seals ensure that leakproofness when connecting with external device (ED), and the inside left end of the valve body is equipped with spring pad
10, spring pad can be moved left and right in the inside of valve body, and the left end of valve body contacts fixation with pressure spring, the right end of spring pad with
Valve pocket contact, the inside of the spring pocket and between piston and spring pad be equipped with pressure spring 11, the left end of pressure spring with
The right end of piston is connected and fixed, and right end and the spring base of pressure spring are connected and fixed, can by rotation screw rod band piston to
It moves right, pressure spring is compressed, adjust the pressure of pressure spring, the inside of the valve body and be equipped with valve in the right end of spring pad
Set 12, valve pocket can be moved left and right in the inside of valve body, and the left end of valve pocket is contacted with the right end of spring pad, can mutually push a left side
It moves right, the lateral wall left part of the valve pocket and the inner sidewall right part of valve body are equipped with valve pocket sealing ring 13, and valve pocket sealing ring is protected
The leakproofness of junction between valve pocket and valve body is demonstrate,proved, the inside of the spring pad is equipped with spring base 14, and spring socket sleeve is in valve rod
Outside, the left end of spring base limited by check ring, and the right part of spring base is covered in the inside of reset spring, and spring base
Left part right end the right end of reset spring is blocked, between the spring base and valve body be equipped with reset spring 15, reset spring with
Pressure spring makes device be in the state position of a balance, and inside of the valve pocket or so, which is run through, is equipped with valve rod 16, and valve rod can
To move left and right in valve pocket, the folding of cylinder ports is controlled together with valve pocket, the lateral wall left part of the valve rod is equipped with spring
Retaining ring 17, check ring are equipped with cylinder ports 18 for fixing limited spring seat, the right end of the valve body, and cylinder ports pass through exterior tube
Road couples with oil cylinder, and pressure oil can be through the into or out oil cylinder of cylinder ports, the side wall right part of the valve body and the side wall of valve pocket
Respectively uniformly through pressure oil port 19 is equipped with, pressure oil port is used to pressure oil is added or is discharged balanced valve, the valve body right part
Side wall left part run through and be equipped with control liquid mouth 20, control liquid mouth is for being added or be discharged control liquid.
Specifically, the left end of the swivel nut is threaded with shield 21, shield plays the role of protecting screw rod and bolt,
The bolt after regulating and screw rod is avoided to be changed by externalities.
Specifically, the spring pocket sealing ring, piston seal, valve seals and valve pocket sealing ring are by butyronitrile rubber
Glue material is made, and nitrile rubber oil resistivity is fabulous, and wearability is higher, and heat resistance is preferable, and bonding force is strong, can guarantee to connect
The leakproofness at place.
Specifically, the pressure spring is made of alloy spring wire 60Si2Mn material, alloy spring wire
60Si2Mn material plasticity is low, and elasticity is strong, and resistance to stress ability is strong.
Specifically, the outer portion to form balanced valve is connected between the spring pocket and valve body by fine thread, it will be former
The outer portion for the balanced valve that some is integrally connected together is divided into spring pocket and valve body, and is linked together by fine thread,
Production and processing technology can be simplified, guarantee machining accuracy.
Working principle: the balanced valve in the utility model is suitable for the shovel plate oil cylinder and lifting oil of tunneling machine hydraulic system
The preparatory setting of cylinder, balanced valve pressure drives screw rod and piston to move left and right by rotating nut, changes the compression of pressure spring
Degree changes the setting of balanced valve operating pressure, and when to oil cylinder piston chamber feed flow, pressure oil enters flat through pressure oil port
It weighing after valve, pushes valve rod to move to right, cylinder ports are opened, pressure oil enters oil cylinder piston chamber through cylinder ports, after stopping feed flow, valve rod
Cylinder ports are closed in reset, and when oil cylinder piston cavity pressure is more than the pressore setting of pressure spring, valve pocket overcomes pressure spring
Power be moved to the left, open valve rod open cylinder ports, from cylinder ports through pressure oil port pressure release, piston cavity pressure reaches and adjusts oil liquid
When pressing spring dynamic balance, cylinder ports are closed, and when oil liquid is to oil cylinder piston rod cavity feed flow, control liquid enters valve pocket through controlling liquid mouth
Piston end pushes valve pocket to be moved to the left, and opens cylinder ports, and oil cylinder piston chamber oil liquid returns liquid through cylinder ports to pressure oil port, simultaneously
System oil liquid opens cylinder ports of another group of balanced valve to rod end chamber feed flow will be in existing structure to rod end chamber feed flow
Valve body is decomposed into spring pocket and valve body two parts, this structure greatly simplifies production and processing technology, ensure that precision, saves
Production cost, effectively improves the qualification rate of product.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of balanced valve of split type structure, including spring pocket (1), it is characterised in that: the lateral wall of the spring pocket (1) is right
Portion is equipped with spring pocket sealing ring (2), and the left end of the spring pocket (1) is threaded with swivel nut (3), the middle part of the swivel nut (3)
Left and right is through screw rod (4) are equipped with, and the lateral wall left part of the screw rod (4) is threaded with nut (5), the spring pocket (1)
Internal left end is equipped with piston (6), and the outboard sidewalls of the piston (6) are equipped with piston seal (7), the spring pocket (1)
Right end is threaded with valve body (8), and the lateral wall bilateral symmetry of the valve body (8) is equipped with valve seals (9), the valve body
(8) inside left end is equipped with spring pad (10), the inside of the spring pocket (1) and sets between piston (6) and spring pad (10)
Have pressure spring (11), the inside of the valve body (8) and the right end of spring pad (10) be equipped with valve pocket (12), the valve pocket (12)
Lateral wall left part and the inner sidewall right part of valve body (8) be equipped with valve pocket sealing ring (13), the inside of the spring pad (10) is set
Have spring base (14), be equipped with reset spring (15) between the spring base (14) and valve body (8), the inside of the valve pocket (12) is left
The right side is through valve rod (16) are equipped with, and the lateral wall left part of the valve rod (16) is equipped with check ring (17), the right end of the valve body (8)
Equipped with cylinder ports (18), the side wall right part of the valve body (8) and the side wall right part of valve pocket (12) are respectively uniformly through equipped with pressure
Hydraulic fluid port (19), the side wall left part of the valve body (8), which runs through, is equipped with control liquid mouth (20).
2. a kind of balanced valve of split type structure according to claim 1, it is characterised in that: the left end of the swivel nut (3)
It is threaded with shield (21).
3. a kind of balanced valve of split type structure according to claim 1, it is characterised in that: the spring pocket sealing ring
(2), piston seal (7), valve seals (9) are made with valve pocket sealing ring (13) of nitrile rubber.
4. a kind of balanced valve of split type structure according to claim 1, it is characterised in that: the pressure spring (11) by
Alloy spring wire 60Si2Mn material is made.
5. a kind of balanced valve of split type structure according to claim 1, it is characterised in that: the spring pocket (1) and valve
Body connects the outer portion to form balanced valve by fine thread between (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822009525.8U CN209164225U (en) | 2018-12-03 | 2018-12-03 | A kind of balanced valve of split type structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822009525.8U CN209164225U (en) | 2018-12-03 | 2018-12-03 | A kind of balanced valve of split type structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209164225U true CN209164225U (en) | 2019-07-26 |
Family
ID=67341678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822009525.8U Active CN209164225U (en) | 2018-12-03 | 2018-12-03 | A kind of balanced valve of split type structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209164225U (en) |
-
2018
- 2018-12-03 CN CN201822009525.8U patent/CN209164225U/en active Active
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