CN203822735U - Proportional reversing valve core assembly - Google Patents
Proportional reversing valve core assembly Download PDFInfo
- Publication number
- CN203822735U CN203822735U CN201420155263.5U CN201420155263U CN203822735U CN 203822735 U CN203822735 U CN 203822735U CN 201420155263 U CN201420155263 U CN 201420155263U CN 203822735 U CN203822735 U CN 203822735U
- Authority
- CN
- China
- Prior art keywords
- spring
- valve core
- spring seat
- reversing valve
- core assembly
- 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 - Lifetime
Links
- 238000009434 installation Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Multiple-Way Valves (AREA)
- Springs (AREA)
Abstract
The utility model relates to a proportional reversing valve core assembly which comprises a spring pull rod, two identical cushion blocks, two spring seats with the same structure, a centralizing spring and a valve core, wherein threads are formed at one end of the spring pull rod, and the other end of the spring pull rod adopts an inner hexangular cylinder end adopting a countersink; a through hole is formed in the middle of each cushion block, one end adopts a plane, and the other end adopts a spherical surface; a through hole is formed in the middle of each spring seat, the excircle diameter of one end is large, and the excircle diameter of the other end is small, and a conical hole is formed in the large excircle end; the centralizing spring is mounted between the two spring seats with the same structure, and the two identical cushion blocks are mounted at the outer ends of the spring seats and matched with the conical holes; a threaded hole is formed in one end of the valve core, the threaded end of the spring pull rod is in screw-thread fit with the valve core and tightened with the valve core, the cushion blocks, the spring seats and the centralizing spring are fixed, and the distance between the spring seats meets the specified dimensional requirement. Compared with other products with the same structures, the proportional reversing valve core assembly is simple in structure, convenient to mount, higher in dimension control accuracy, good in repeatability and stable in performance, and can achieve mass production.
Description
Technical field
The utility model belongs to selector valve field, particularly relates to a kind of proportional reversing valve mangetic core assembly.
Background technique
The occasion of proportional reversing valve application is more and more extensive.Yet the research of proportional reversing valve and manufacture, also in a relatively backward state, cannot realize batch production at home, and product performance also exist unsettled problem simultaneously.
In the spare part of guide's proportional reversing valve, mangetic core assembly is the assembly of comparison core.Its structural behaviour quality is the performance of the whole guide proportion selector valve of impact directly.
One of mangetic core assembly structure generally adopting at present respectively adds a spring for spool two ends, this simple in structure but have drawback, because while guaranteeing that spool moves respectively to from left to right, the move distance error of both direction is controlled within limits, the conformity of just necessary strict control spring rigidity, the deviation of the rigidity between the spring of at least installing at spool two ends, free height etc. must be controlled in less scope, the spring pre compressed magnitude at spool two ends also will be controlled simultaneously, otherwise the stroke of spool side-to-side movement cannot guarantee symmetry.And pre compressed magnitude after control spring rigidity, free height and spring fitting is all more difficult, can reach by this way good control requirement cost be very high.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of proportional reversing valve mangetic core assembly, can solve the unreliable products performance and the poor problem of conformity that due to spring and spring fitting etc., cause at present.
The utility model solves the technological scheme that its technical problem adopts: a kind of proportional reversing valve mangetic core assembly is provided, comprise spring pull bar, spring pull bar is that one end has screw thread, the other end is hexagonal cylindrical end in counterbore, on described spring pull bar, cover has the first cushion block, the first spring seat, the second spring seat and the second cushion block successively, and the threaded end of spring pull bar and spool screw-thread fit are tightened, between the first spring seat and the second spring seat, cover has centralizing spring; The first cushion block and the second cushion block structure positioned opposite on spring pull bar that coexists mutually, and one end of its intermediate throughholes is planar ends, the other end is sphere end; The first spring seat and the second spring seat structure positioned opposite on spring pull bar that coexists mutually, and the through hole one end in the middle of it be large outer nose circle, the little outer nose circle of the other end, and outside greatly, nose circle has a conical bore.
The mode that the threaded end of employing spring pull bar and spool screw-thread fit are tightened can be fixed cushion block, spring seat and centralizing spring and make spring seat spacing reach the size requirement of regulation.Such mangetic core assembly is simple in structure, easy for installation, can reach higher installation dimension precision, when the installation form of a centralizing spring has been avoided in the past each spring of spool two ends, because spring rate is inconsistent, cause the asymmetric problem of spool side-to-side movement.This structure can meet processing in enormous quantities.
The sphere end of the first described cushion block coordinates installation with the conical bore of the large outer nose circle of the first spring seat.
The sphere end of the second described cushion block coordinates installation with the conical bore of the large outer nose circle of the second spring seat.
The lateral force producing while adopting the sphere end of cushion block and the conical bore of the large outer nose circle of spring seat to coordinate the mode of installing can avoid centralizing spring compression causes spring pull bar and the stressed generation deformation of spring seat, and then affecting valve core movement, this structure has advantages of reproducible, stable performance.
Between the first described spring seat and the second spring seat, pass through large outer nose circle location and installation centralizing spring separately.
Beneficial effect
The utility model has simple for structure, easy for installation compared with other infrastructure products of the same type, control size precision is higher, reproducible, and stable performance can meet production in enormous quantities.
Accompanying drawing explanation
Fig. 1 is the utility model spring pull bar outline drawing one.
Fig. 2 is the utility model spring pull bar outline drawing two.
Fig. 3 is the utility model cushion block sectional view.
Fig. 4 is the utility model spring seat sectional view.
Fig. 5 is the utility model spool outline drawing.
Fig. 6 is the sectional view of the utility model proportional reversing valve mangetic core assembly.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiments are only not used in restriction scope of the present utility model for the utility model is described.In addition should be understood that those skilled in the art can make various changes or modifications the utility model after having read the content of the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment 1
As shown in Fig. 1～Fig. 6, a kind of proportional reversing valve mangetic core assembly, comprises spring pull bar 1, two identical cushion blocks 2, two spring seats that structure is identical 3, centralizing spring 4 and spools 5.Described spring pull bar 1 is for there is screw thread one end, and the other end is interior hexagonal cylindrical end, and interior hexagonal is counterbore; It is plane that there are through hole, one end in described cushion block 2 its centres, and the other end is sphere; There is a through hole described spring seat 3 its centres, and one end outside diameter is large, and one end outside diameter is little, outside large, nose circle has a conical bore, centralizing spring 4 is installed between the spring seat 3 that these two structures are identical, and two identical cushion blocks 2 are installed on spring seat 3 outer ends, match with its conical bore; There is tapped hole described spool 5 one end, and the threaded end of spring pull bar 1 and spool 5 screw-thread fit are tightened, and cushion block 2, spring seat 3 and centralizing spring 4 are fixed and made spring seat 3 spacing reach the size requirement of regulation.
Claims (4)
1. a proportional reversing valve mangetic core assembly, comprise spring pull bar (1), spring pull bar (1) has screw thread for one end, the other end is hexagonal cylindrical end in counterbore, it is characterized in that: on described spring pull bar (1), cover has the first cushion block (2), the first spring seat (3), the second spring seat (6) and the second cushion block (7) successively, and the threaded end of spring pull bar (1) and spool (5) screw-thread fit are tightened, between the first spring seat (3) and the second spring seat (6), cover has centralizing spring (4); The first cushion block (2) and the second cushion block (7) structure upper positioned opposite of spring pull bar (1) that coexists mutually, and one end of its intermediate throughholes is planar ends, the other end is sphere end; The first spring seat (3) and the second spring seat (6) structure upper positioned opposite of spring pull bar (1) that coexists mutually, and the through hole one end in the middle of it be large outer nose circle, the little outer nose circle of the other end, and outside greatly, nose circle has a conical bore.
2. proportional reversing valve mangetic core assembly as claimed in claim 1, is characterized in that: the sphere end of described the first cushion block (2) coordinates installation with the conical bore of the large outer nose circle of the first spring seat (3).
3. proportional reversing valve mangetic core assembly as claimed in claim 1, is characterized in that: the sphere end of described the second cushion block (7) coordinates installation with the conical bore of the large outer nose circle of the second spring seat (6).
4. proportional reversing valve mangetic core assembly as claimed in claim 1, is characterized in that: between described the first spring seat (3) and the second spring seat (6), pass through large outer nose circle location and installation centralizing spring (4) separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420155263.5U CN203822735U (en) | 2014-04-01 | 2014-04-01 | Proportional reversing valve core assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420155263.5U CN203822735U (en) | 2014-04-01 | 2014-04-01 | Proportional reversing valve core assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822735U true CN203822735U (en) | 2014-09-10 |
Family
ID=51478244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420155263.5U Expired - Lifetime CN203822735U (en) | 2014-04-01 | 2014-04-01 | Proportional reversing valve core assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641236A (en) * | 2017-01-22 | 2017-05-10 | 山东科技大学 | AMT hydraulic gear shifting execution system having mechanical positioning and centering functions |
-
2014
- 2014-04-01 CN CN201420155263.5U patent/CN203822735U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641236A (en) * | 2017-01-22 | 2017-05-10 | 山东科技大学 | AMT hydraulic gear shifting execution system having mechanical positioning and centering functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |