CN202031900U - Hand-operated directional valve for small and medium size hydraulic press - Google Patents
Hand-operated directional valve for small and medium size hydraulic press Download PDFInfo
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- CN202031900U CN202031900U CN 201120048770 CN201120048770U CN202031900U CN 202031900 U CN202031900 U CN 202031900U CN 201120048770 CN201120048770 CN 201120048770 CN 201120048770 U CN201120048770 U CN 201120048770U CN 202031900 U CN202031900 U CN 202031900U
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Abstract
An embodiment of the utility model discloses a hand-operated directional valve for a small and medium size hydraulic press. The hand-operated directional valve comprises a valve core, a valve body, an end cover, a rotating arm, an installing plate, a connection shaft and a bearing seat, wherein the end cover is arranged on the valve body; the valve core is matched with an inner cavity of the valve body, one end of the valve core which extends outside of the end cover is provided with a positioning column perpendicular to an axis of the valve core; the bearing seat is arranged on the installing plate, the installing plate is arranged on the valve body; and the rotating arm is broken line shaped, one end of the rotating arm is provided with a chute for containing the positioning column, the positioning column can slide in the chute, a corner of the rotating arm is hinged to the bearing seat through the connection shaft, the other end of the rotating arm extends towards a length direction of the installing plate and is provided with an installation part thereon. A linkage mechanism can be directly connected to the hand-operated directional valve of the embodiment of the utility model, therefore, when a drift diameter of the hand-operated directional valve is designed to be large, a user can complete a reversing motion smoothly by using a small active force with the effect of the linkage mechanism, thereby raising work efficiency of the small and medium size hydraulic press.
Description
Technical field
The utility model relates to Hydraulic Field, more particularly, relates to a kind of hand-operated direction valve of middle-size and small-size hydraulic press.
Background technique
At present, in middle-size and small-size hydraulic press, the operating grip of hand-operated direction valve directly links to each other with spool, realizes the commutation action by the manipulation operations handle.And when practical operation, the latus rectum of selector valve is big more, the push-pull effort that acts on the operating grip accordingly will be big more, therefore in order to reduce the push-pull effort that operator act on operating grip, less with the design of the latus rectum of hand-operated direction valve often, less latus rectum greatly reduces the working efficiency of middle-size and small-size hydraulic press.
The model utility content
In view of this, the utility model provides a kind of hand-operated direction valve of middle-size and small-size hydraulic press, to be implemented under the latus rectum prerequisite that increases hand-operated direction valve, reduces to save the active force that acts on the hand-operated direction valve, improves the working efficiency of middle-size and small-size hydraulic press.
For achieving the above object, the utility model provides following technological scheme:
A kind of hand-operated direction valve of middle-size and small-size hydraulic press comprises spool, valve body, end cap, pivoted arm, mounting plate, coupling shaft and bearing support, and wherein, described end cap is arranged on the described valve body; Described spool matches with the inner chamber of described valve body, and the end that described spool stretches out described end cap is provided with the locating column perpendicular to described valve core axis; Described bearing support is arranged on the described mounting plate, and described mounting plate is arranged on the described valve body; Described pivoted arm is a polyline shaped, the one end is provided with the chute that can hold described locating column, described locating column can slide in described chute, the corner of described pivoted arm is articulated in described bearing support by described coupling shaft, the described pivoted arm the other end extends to the length direction of described mounting plate, and it is provided with assembly department.
Preferably, in the hand-operated direction valve of above-mentioned middle-size and small-size hydraulic press, the inner chamber of described valve body comprises first cavity and second cavity; Described valve body is provided with first outlet that is connected with described first cavity and second outlet that is connected with described second cavity, and by changing the import that described valve element position can be connected with described first cavity and second cavity respectively.
Preferably, in the hand-operated direction valve of above-mentioned middle-size and small-size hydraulic press, described spool middle part is provided with drainback passage, and the circular hole that can be communicated with described drainback passage and described first cavity and described second cavity.
Preferably, in the hand-operated direction valve of above-mentioned middle-size and small-size hydraulic press, described valve body is provided with the oil return end cap, and described oil return end cap comprises shell, oil back chamber and return opening, described shell and described valve body closely cooperate, and described oil back chamber is communicated with described return opening and described drainback passage.
Preferably, in the hand-operated direction valve of above-mentioned middle-size and small-size hydraulic press, described oil return end cap and described pivoted arm are oppositely arranged.
Preferably, in the hand-operated direction valve of above-mentioned middle-size and small-size hydraulic press, described chute is a U type chute.
Preferably, in the hand-operated direction valve of above-mentioned middle-size and small-size hydraulic press, described mounting plate is installed on the described valve body by bolt.
Preferably, in the hand-operated direction valve of above-mentioned middle-size and small-size hydraulic press, described coupling shaft by Bearing Installation on described bearing support.
From technique scheme as can be seen, among the utility model embodiment by pivoted arm is set on hand-operated direction valve, chute on an end of pivoted arm matches with locating column, the other end can connect the labour-saving linkage mechanism by assembly department, by mechanics principle as can be known, when linkage mechanism drove the pivoted arm rotation, locating column can be realized the relative movement of spool at body cavity by the relative movement in chute, thereby realized switch operation.Because the hand-operated direction valve among the utility model embodiment is installing connecting rods mechanism directly, therefore, when the latus rectum of this hand-operated direction valve designs greatly, under the effect of linkage mechanism, the operator uses less action force still can finish the commutation action smoothly, has improved the working efficiency of middle-size and small-size hydraulic press.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the hand-operated direction valve that is used for middle-size and small-size hydraulic press that Fig. 1 provides for the utility model embodiment;
The pivoted arm that Fig. 2 provides for the utility model embodiment and the connection diagram of spool;
The structural representation of the spool that Fig. 3 provides for the utility model embodiment;
The structural representation of the pivoted arm that Fig. 4 provides for the utility model embodiment;
Structural representation when the import P that Fig. 5 provides for the utility model embodiment is communicated with outlet A;
Structural representation when the import P that Fig. 6 provides for the utility model embodiment is communicated with outlet B.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment discloses a kind of hand-operated direction valve of middle-size and small-size hydraulic press, to be implemented under the latus rectum prerequisite that increases hand-operated direction valve, reduces to save the active force that acts on the hand-operated direction valve, improves the working efficiency of middle-size and small-size hydraulic press.
Please refer to hand-operated direction valve shown in Figure 1, this hand-operated direction valve comprises spool 5, valve body 3, end cap 4, pivoted arm 6, mounting plate 7, coupling shaft 9 and bearing support 8, and wherein, end cap 4 is arranged on the valve body 3; Spool 5 matches with the inner chamber of valve body 3, and the end that spool 5 stretches out end cap 4 is provided with the locating column 12 perpendicular to spool 5 axis; Bearing support 8 is arranged on the mounting plate 7, and mounting plate 7 is arranged on (mounting plate 7 can be welded on the valve body 3, also can dismountablely be installed on the valve body 3, is installed on the valve body 3 by bolt among the utility model embodiment) on the valve body 3; Pivoted arm 6 is a polyline shaped, the one end is provided with the chute 64 that can hold locating column 12, and locating column 12 can slide in chute 64, and the corner 62 of pivoted arm 6 is articulated in described bearing support 8 by coupling shaft 9, pivoted arm 6 the other ends extend to the length direction of mounting plate 7, and it is provided with assembly department.
Wherein assembly department can be provided with threaded screw rod, is used to be provided with a series of forms such as through hole of bolt.
Among the utility model embodiment by pivoted arm 6 is set on hand-operated direction valve, chute 64 on an end of pivoted arm 6 matches with locating column 12, the other end can connect the labour-saving linkage mechanism by assembly department, by mechanics principle as can be known, when linkage mechanism drives pivoted arm 6 rotations, direction shown in the curved arrow shown in Figure 2, locating column 12 can be realized the relative movement of spool 5 at valve body 3 inner chambers by the relative movement in chute 64, direction shown in the straight arrows as shown in Figure 2, thus realize switch operation.Because the hand-operated direction valve among the utility model embodiment is installing connecting rods mechanism directly, therefore, when the latus rectum of this hand-operated direction valve designs greatly, under the effect of linkage mechanism, the operator uses less action force still can finish the commutation action smoothly, has improved the working efficiency of middle-size and small-size hydraulic press.
In the utility model embodiment, the structure of selector valve can be identical with existing manual reverse of direction valve arrangement, also can be different.Hand-operated direction valve drainback passage can be arranged on the valve body 3 usually, and drainback passage can design on valve body 3 equally among the utility model embodiment owing to structural limitations in the prior art.In addition,, therefore,, prolong the working life of valve body 3, also drainback passage can be arranged on the spool 5 for easy to process because that the latus rectum of hand-operated direction valve can design among the utility model embodiment is bigger.Need carefully to describe the concrete structure of valve body 3 for this reason.
Please refer to Fig. 1 and in conjunction with shown in Figure 3.The inner chamber of valve body 3 comprises first cavity 31 and second cavity 32 in the utility model embodiment; The second outlet B that valve body 3 is provided with the first outlet A that is connected with first cavity 31 and is connected with second cavity 32, and by changing the import P that spool 5 positions can be connected with first cavity 31 and second cavity 32 respectively.
When drainback passage being arranged on the spool 5, need to be provided with some return openings on the valve body 3, when the first outlet A was connected with import P, drainback passage 51 was communicated with the one or more of second cavity 32 and some return openings; As the second outlet B when being connected with import P, one or more in drainback passage 51 connection first cavitys 31 and the some return openings.
Among the utility model embodiment, in order to simplify the structure of valve body 3, the cavity design of valve body 3 is become connected state, the one end is provided with end cap 4, and the other end is provided with oil return end cap 11.Wherein, oil return end cap 11 comprises shell, oil back chamber and oil return inlet T, and shell and valve body 3 closely cooperate, and oil back chamber is communicated with oil return inlet T and drainback passage 51.
The operating process of this hand-operated direction valve is as follows: at first, linkage mechanism is connected on the assembly department, import P links to each other with in-line 10, and the first outlet A links to each other with epicoele pipeline 1, and the second outlet B links to each other with cavity of resorption pipeline 2.Secondly, the operator manually by linkage mechanism, makes pivoted arm 6 be in position shown in Figure 5, and high pressure oil in-line 10 communicates with first cavity 31, and first cavity 31 communicates with the oil cylinder epicoele by epicoele pipeline 1.The oil of oil cylinder cavity of resorption communicates with second cavity 32, and the oil of second cavity 32 has circular hole 52 to communicate with drainback passage 51 by the external diameter of spool 5, and this moment, slide block moved work downwards.
Work finishes, and the operator manually by linkage mechanism, makes pivoted arm 6 be in position shown in Figure 6, and high pressure oil in-line 10 communicates with second cavity 32, and second cavity 32 communicates with the oil cylinder epicoele.The oil of oil cylinder cavity of resorption communicates with first cavity 31, and first cavity 31 communicates with drainback passage 51.Slide block upwards ran to and stopped this moment.
The utility model is with the manual reverse of direction control valve unit that stimulates the menstrual flow greatly, be used in the middle-size and small-size hydraulic press, particularly suitable changes flexibly the working state of hydraulic press fast in the alignment technology of axial workpiece, make the oil cylinder of hydraulic press can fast transition descending, the action of compacting, backhaul.To satisfy technological requirement to different product.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (8)
1. the hand-operated direction valve of a middle-size and small-size hydraulic press, it is characterized in that, comprise spool (5), valve body (3), end cap (4), pivoted arm (6), mounting plate (7), coupling shaft (9) and bearing support (8), wherein, described end cap (4) is arranged on the described valve body (3); Described spool (5) matches with the inner chamber of described valve body (3), and the end that described spool (5) stretches out described end cap (4) is provided with the locating column (12) perpendicular to described spool (5) axis; Described bearing support (8) is arranged on the described mounting plate (7), and described mounting plate (7) is arranged on the described valve body (3); Described pivoted arm (6) is a polyline shaped, the one end is provided with the chute (64) that can hold described locating column (12), described locating column (12) can slide in described chute (64), the corner (62) of described pivoted arm (6) is articulated in described bearing support (8) by described coupling shaft (9), described pivoted arm (6) the other end extends to the length direction of described mounting plate (7), and it is provided with assembly department.
2. the hand-operated direction valve of middle-size and small-size hydraulic press according to claim 1 is characterized in that, the inner chamber of described valve body (3) comprises first cavity (31) and second cavity (32); Described valve body (3) is provided with first outlet (A) that is connected with described first cavity (31) and second outlet (B) that is connected with described second cavity (32), and by changing the import (P) that described spool (5) position can be connected with described first cavity (31) and second cavity (32) respectively.
3. the hand-operated direction valve of middle-size and small-size hydraulic press according to claim 2, it is characterized in that, described spool (5) middle part is provided with drainback passage (51), and the circular hole (52) that can be communicated with described drainback passage (51) and described first cavity (31) and described second cavity (32).
4. the hand-operated direction valve of middle-size and small-size hydraulic press according to claim 3, it is characterized in that, described valve body (3) is provided with oil return end cap (11), described oil return end cap (11) comprises shell, oil back chamber and return opening (T), described shell and described valve body (3) closely cooperate, and described oil back chamber is communicated with described return opening (T) and described drainback passage (51).
5. the hand-operated direction valve of middle-size and small-size hydraulic press according to claim 4 is characterized in that, described oil return end cap (11) is oppositely arranged with described pivoted arm (6).
6. the hand-operated direction valve of middle-size and small-size hydraulic press according to claim 1 is characterized in that, described chute (64) is a U type chute.
7. the hand-operated direction valve of middle-size and small-size hydraulic press according to claim 1 is characterized in that, described mounting plate (7) is installed on the described valve body (3) by bolt.
8. the hand-operated direction valve of middle-size and small-size hydraulic press according to claim 1 is characterized in that, described coupling shaft (9) by Bearing Installation on described bearing support (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120048770 CN202031900U (en) | 2011-02-25 | 2011-02-25 | Hand-operated directional valve for small and medium size hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120048770 CN202031900U (en) | 2011-02-25 | 2011-02-25 | Hand-operated directional valve for small and medium size hydraulic press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202031900U true CN202031900U (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120048770 Expired - Fee Related CN202031900U (en) | 2011-02-25 | 2011-02-25 | Hand-operated directional valve for small and medium size hydraulic press |
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| Country | Link |
|---|---|
| CN (1) | CN202031900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033441A (en) * | 2014-06-27 | 2014-09-10 | 四川建设机械（集团）股份有限公司 | Manual reversing valve |
-
2011
- 2011-02-25 CN CN 201120048770 patent/CN202031900U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033441A (en) * | 2014-06-27 | 2014-09-10 | 四川建设机械（集团）股份有限公司 | Manual reversing valve |
| CN104033441B (en) * | 2014-06-27 | 2016-03-09 | 四川建设机械（集团）股份有限公司 | Hand-operated direction valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20190225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |