CN203656547U - Auxiliary oil draining valve and centralized lubrication device - Google Patents
Auxiliary oil draining valve and centralized lubrication device Download PDFInfo
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- CN203656547U CN203656547U CN201420034178.3U CN201420034178U CN203656547U CN 203656547 U CN203656547 U CN 203656547U CN 201420034178 U CN201420034178 U CN 201420034178U CN 203656547 U CN203656547 U CN 203656547U
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- 238000005461 lubrication Methods 0.000 title claims abstract description 38
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 6
- 240000006909 Tilia x europaea Species 0.000 claims description 6
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 6
- 239000004571 lime Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 145
- 239000000314 lubricant Substances 0.000 description 54
- 230000001050 lubricating effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 239000002828 fuel tank Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The utility model discloses an auxiliary oil draining valve which comprises a valve spool, a spring and a valve body with a valve cavity. The valve spool is positioned in the valve cavity, the lower limit position of the valve spool is determined by a limit part on the lower side of the valve cavity, the side face of the valve cavity is provided with a limit step, the valve spool is provided with a positioning shoulder and a passage, two ends of the spring are abutted to the limit step and the positioning shoulder respectively, and the passage is communicated with an oil inlet hole and an oil outlet hole of the valve cavity when the valve spool moves upwards in the valve cavity by a preset distance and compresses the spring. After an oil supply line supplies oil to a distributor through the auxiliary oil draining valve, a two-position three-way valve at an outlet of a lubrication pump firstly drains the oil, pressure in the oil supply line is reduced, the spring in the auxiliary oil draining valve is abutted to the valve spool to return to an original position, a vacuum cavity is formed by the valve cavity at the upper end of the valve spool when the valve spool moves, lubrication oil at an inlet of the distributor can enter the vacuum cavity, the pressure of the lubrication oil at the inlet of the distributor cannot remain, and the distributor can normally run when working next time. The utility model further discloses a centralized lubrication device with the auxiliary oil draining valve.
Description
Technical field
The utility model relates to lubrication technical field, particularly relates to a kind of auxiliary draining valve.In addition the utility model also relates to a kind of centralized lubrication device with above-mentioned auxiliary draining valve.
Background technique
Lubricant oil can reduce the friction ractor between transmission part, reduces surface friction drag, slows down wearing and tearing, in mechanical transmission, conventionally by centralized lubrication device, lubricating point is transmitted to lubricant oil.
Please refer to Fig. 1, Fig. 1 is a kind of structural representation of typical centralized lubrication device.Centralized lubrication device comprises fuel tank 100, lubricant pump 200, distributor 300 and oil feed line 400, the interior storage lubricant oil of fuel tank 100 also offers lubricant pump 200, lubricant pump 200 is connected with multiple distributors 300 by oil feed line 400, and distributor 300 connects each lubricating point.
When the work of centralized lubrication device, lubricant pump 200 is given distributor 300 by oil feed line 400 by lubricating pump, and distributor 300, according to the needs of each lubricating point, provides corresponding lubricant oil to each lubricating point.After having worked, when lubricant pump 200 is out of service, lubricant oil in oil feed line 400 need to be discharged, especially make the lubricating oil pressure of distributor 300 ingress decline rapidly, make the oil supply component in distributor 300 overcome oil pressure and reset, while work, distributor 300 could normal operation next time.
Conventionally, be provided with two-position three-way valve in the outlet port of lubricant pump 200, the first valve position of two-position three-way valve is communicated with lubricant pump 200 and oil feed line 400, the second valve position are communicated with oil feed line 400 and fuel tank 100, can discharge the lubricant oil in oil feed line 400.For the lower lubricant oil of stickiness, two-position three-way valve can be discharged the lubricant oil in oil feed line 400, the oil pressure of distributor 300 ingress is declined rapidly, but, for the higher lubricant oil of stickiness, when two-position three-way valve is positioned at the second valve position, lubricating oil viscosity resistance hysteresis in oil feed line 400 is too large, the residual a large amount of lubricant oil of meeting, distributor 330 is positioned at the end of oil feed line 400, the ingress of distributor 300 can remain very large oil pressure, oil supply component in distributor 300 cannot be resetted by oil pressure retardance, while work next time, distributor 300 cannot normally move, and then centralized lubrication device cannot normally be worked.
Therefore, designing a kind of auxiliary draining valve for centralized lubrication device, can fully reduce the lubricant oil residual pressure of the ingress of distributor, distributor can normally be moved, is that those skilled in the art are badly in need of the technical problem solving at present.
Model utility content
The purpose of this utility model is to provide a kind of auxiliary draining valve, and in centralized lubrication device, this auxiliary draining valve can fully reduce the lubricant oil residual pressure of the ingress of distributor, and distributor can normally be moved.Another object of the present utility model is to provide a kind of centralized lubrication device with above-mentioned auxiliary draining valve.
In order to realize above-mentioned technical purpose, the utility model provides a kind of auxiliary draining valve, comprises spool, spring and has the valve body of valve pocket; Described spool is positioned at described valve pocket, and the downside of described valve pocket is provided with bounding means, and described bounding means is determined the limit inferior position of described spool;
The downside of described spool is provided with the oil inlet hole of described valve pocket, and the upper-end surface of described valve body is provided with the oil outlet of described valve pocket, and the side of described valve pocket has the limited step towards downside; The outside of described spool lower end has the locating shoulder towards upside, and described limited step is supported in the upper end of described spring, and described locating shoulder is supported in lower end;
Described spool has path, the first port of described path is positioned at the bottom of described spool, can be communicated with described oil inlet hole, the second port is positioned at the side on described spool top, described spool can compress the described spring intended distance that moves up in described valve pocket, and described the second port is communicated with described oil outlet.
Preferably, described path comprises first path with described the first port and the alternate path with described the second port, and described the first port is positioned at the lower end surface of described spool, and described the first path and described alternate path are in the internal communication of described spool.
Preferably, described spool comprises the valve core and the valve core case that match, and described valve core case has described locating shoulder, and the top of described valve core has described second port of described path.
Preferably, described path is the elongated slot that described spool side vertically distributes.
Preferably, described limited step comprises spring limited step and spool limited step, described spring limited step is positioned at the upside of described spool limited step, described spring limited step is supported in the upper end of described spring, and described spool limited step coordinates the limes superiors position that can determine described spool with described locating shoulder.
Preferably, described valve pocket is the through hole on described valve body vertical direction, and the inwall of described valve pocket and the side slip of described spool that are positioned at described limited step upside are sealed and matched.
Preferably, described valve body comprises the upper valve body and the lower valve body that match, the boss that described bounding means is described lower valve inner, and the lower end of described upper valve body forms described limited step in described lower valve body.
Preferably, the upper end of described valve pocket has reaming.
Preferably, described bounding means is valve seat or the circlip coordinating with described valve body.
The utility model also provides a kind of centralized lubrication device, comprise distributor and oil feed line, also comprise the auxiliary draining valve described in above-mentioned any one, described oil feed line is connected with described distributor by described auxiliary draining valve, and described auxiliary draining valve is positioned at the ingress of described distributor.
Preferably, described centralized lubrication device comprises the combination of multiple described auxiliary draining valves and described distributor, and each described combination is connected in parallel in described oil feed line.
The auxiliary draining valve that the utility model provides, comprises spool, spring and has the valve body of valve pocket; Spool is positioned at valve pocket, and the downside of valve pocket is provided with bounding means, and bounding means is determined the limit inferior position of spool; The downside of spool is provided with the oil inlet hole of valve pocket, and the upper-end surface of valve body is provided with the oil outlet of valve pocket, and the side of valve pocket has the limited step towards downside; The outside of spool lower end has the locating shoulder towards upside, and limited step is supported in the upper end of spring, and locating shoulder is supported in lower end; Spool has path, and the first port of path is positioned at the bottom of spool, can be communicated with oil inlet hole, and the second port is positioned at the side on spool top, spool can be in valve pocket the Compress Spring intended distance that moves up, the second port is communicated with oil outlet.
This auxiliary draining valve is arranged in centralized lubrication device, and is positioned at the ingress of distributor, the oil inlet hole of auxiliary draining valve connects oil feed line, and oil outlet connects distributor.When lubricant pump work, lubricant oil is introduced into the oil inlet hole of auxiliary draining valve by oil feed line, and the first port that can inlet passage, now, the second port of path is not communicated with oil outlet, lubricant oil extruding spool, spool is moved up in valve pocket and Compress Spring, after mobile intended distance, the second port of path is communicated with oil outlet, and oil feed line provides lubricant oil by auxiliary draining valve to distributor.
After fuel feeding completes, lubricant pump quits work, be first oil feed line oil extraction by the two-position three-way valve in lubricant pump outlet port, make the pressure decreased in oil feed line, now, in auxiliary draining valve, spring is supported spool, the pressure that spool can overcome in valve pocket and oil feed line moves down, spool is got back to initial position after moving intended distance, in the process that spool moves, intended distance can make the valve pocket of spool upper end form vacuum chamber, the lubricant oil of distributor ingress can enter vacuum chamber, reduce the pressure of the lubricant oil of distributor ingress, oil supply component in distributor can overcome pressure and reset.
Under the assistance of auxiliary draining valve, even if the stickiness of lubricant oil is higher, also can fully reduce the lubricant oil residual pressure of the ingress of distributor, the oil supply component in distributor can normally reset, distributor can normally move, and the centralized lubrication device at distributor place also can normally be worked.
Concrete, the structure of spool inner gateway can have various ways, and when spool Compress Spring moves up, path can be communicated with oil inlet hole and oil outlet is communicated with.
In a kind of mode, path comprises first path with the first port and the alternate path with the second port, and the first port is positioned at the lower end surface of spool, and the first path and alternate path are in the internal communication of spool.
Further, spool comprises the valve core and the valve core case that match, and valve core case has locating shoulder, aisled second port of top tool of valve core.
In another mode, path is the elongated slot that spool side vertically distributes, and the side of elongated slot lower end can be first end mouth, or the lower end surface of elongated slot is opening-like, is the first port.
In a kind of preferred mode, limited step comprises spring limited step and spool limited step, spring limited step is positioned at the upside of spool limited step, and spring limited step is supported in the upper end of spring, and spool limited step coordinates the limes superiors position that can determine spool with locating shoulder.
Further, valve pocket is the through hole on valve body vertical direction, and the inwall of valve pocket and the side slip of spool that are positioned at limited step upside are sealed and matched.
In another kind of preferred mode, valve body comprises the upper valve body and the lower valve body that match, the boss that bounding means is lower valve inner, and the lower end of upper valve body forms limited step in lower valve body.
In above-mentioned each mode, the upper end of valve pocket has reaming, and bounding means is valve seat or the circlip coordinating with valve body.
The utility model also provides a kind of centralized lubrication device, comprises distributor and oil feed line, also comprises auxiliary draining valve as above, and oil feed line is connected with distributor by auxiliary draining valve, and auxiliary draining valve is positioned at the ingress of distributor.
Because auxiliary draining valve has above-mentioned technique effect, also there is corresponding technique effect therefore there is the centralized lubrication device of above-mentioned auxiliary draining valve.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of typical centralized lubrication device;
Fig. 2 is the structural representation of auxiliary draining valve the first embodiment provided by the utility model, and wherein, spool is positioned at the first valve position;
Fig. 3 is the structural representation of the spool of the auxiliary draining valve shown in Fig. 2 while being positioned at the second valve position;
Fig. 4 is the structural representation of auxiliary draining valve the second embodiment provided by the utility model;
Fig. 5 is the structural representation of auxiliary the third embodiment of draining valve provided by the utility model;
Fig. 6 is the structural representation of the 4th kind of embodiment of auxiliary draining valve provided by the utility model;
Fig. 7 is the structural representation of the 5th kind of embodiment of auxiliary draining valve provided by the utility model;
Fig. 8 is the structural representation of the 6th kind of embodiment of auxiliary draining valve provided by the utility model;
Fig. 9 is the structural representation of a kind of embodiment of centralized lubrication device provided by the utility model.
Wherein, between the reference character in Fig. 1 to Fig. 9 and component names, relation is as follows one to one:
Bounding means 4;
Embodiment
Core of the present utility model is to provide a kind of auxiliary draining valve, and in centralized lubrication device, this auxiliary draining valve can fully reduce the lubricant oil residual pressure of distributor ingress, and distributor can normally be moved.Another core of the present utility model is to provide a kind of centralized lubrication device with above-mentioned auxiliary draining valve.
In order to make those skilled in the art person understand better the utility model scheme, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 2 to Fig. 5, Fig. 2 is the structural representation of auxiliary draining valve the first embodiment provided by the utility model, and wherein, spool is positioned at the first valve position; Fig. 3 is the structural representation of the spool of the auxiliary draining valve shown in Fig. 2 while being positioned at the second valve position; Fig. 4 is the structural representation of auxiliary draining valve the second embodiment provided by the utility model; Fig. 5 is the structural representation of auxiliary the third embodiment of draining valve provided by the utility model.
The utility model provides a kind of auxiliary draining valve, comprises spool 1, spring 2 and has the valve body 3 of valve pocket 5; Spool 1 is positioned at valve pocket 5, and the downside of valve pocket 5 is provided with bounding means 4, and bounding means 4 is determined the limit inferior position of spool 1;
The downside of spool 1 is provided with the oil inlet hole 51 of valve pocket 5, and the upper-end surface of valve body 3 is provided with the oil outlet 52 of valve pocket 5, and the side of valve pocket 5 has the limited step 53 towards downside; The outside of spool 1 lower end has the locating shoulder 11 towards upside, and limited step 53 is supported in the upper end of spring 2, and locating shoulder 11 is supported in lower end;
Spool 1 has path 12, the first port of path 12 is positioned at the bottom of spool 1, can be communicated with oil inlet hole 51, and the second port is positioned at the side on spool 1 top, spool 1 can, at the interior Compress Spring 2 of valve pocket 5 intended distance that moves up, make the second port be communicated with oil outlet 52.
The spool 1 of auxiliary draining valve can be in the interior movement of valve pocket 5, and spool 1 has two valve position in valve pocket 5.When initial position, spool 1 is positioned at the first valve position, and the upper end of bounding means 4 supported lower end that spool 1 makes spool 1 and support by spring 2, as shown in Figure 2.The first port of path 12 can be communicated with oil inlet hole 51, spool 1 moves up after intended distance at the interior Compress Spring 2 of valve pocket 5, spool 1 moves to the second valve position, as shown in Figure 3, now, the second port of spool 1 side is communicated with oil outlet 52, and path 12 is communicated with oil inlet hole 51 and the oil outlet 52 of auxiliary draining valve.
The first port of path 12 can be positioned at the lower end surface of spool 1, also can be positioned at the side of spool 1 lower end.In Fig. 2, the first port of path 12 is positioned at the lower end surface of spool 1, and when spool 1 is positioned at the first valve position, the first port is communicated with oil inlet hole 51; The first port of path 12 can also be positioned at the side of spool 1 lower end, and when lubricant oil extruding spool 1 moves, the first port is communicated with oil inlet hole 51 by valve pocket 5.
This auxiliary draining valve is arranged in centralized lubrication device, and is positioned at the ingress of distributor 300, the oil inlet hole 51 of auxiliary draining valve connects oil feed line 400, and oil outlet 52 connects the entrance of distributor 300.When lubricant pump 200 is worked, lubricant oil enters distributor 300 through oil feed line 400, auxiliary draining valve.
As Fig. 2, structure shown in 3, the first port is positioned at the lower end surface of spool 1, when lubricant pump 200 pumping lubricant oil, lubricant oil is introduced into the oil inlet hole 51 of auxiliary draining valve by oil feed line 400, and the first port of inlet passage 12, now, spool 1 is positioned at the first valve position, the second port of path 12 is not communicated with oil outlet 52, along with entering the increasing of lubricant oil of valve pocket 5, the pressure of lubricant oil increases and pushes spool 1, spool 1 is moved up in valve pocket 5 and Compress Spring 2, spool 1 moves to the second valve position gradually, when spool 1 is positioned at the second valve position, the second port of path 12 is communicated with oil outlet 52, be oil inlet hole 51 and the oil outlet 52 that path 12 has been communicated with auxiliary draining valve, oil feed line 400 can provide lubricant oil to distributor 300 by auxiliary draining valve.
When the first port of path 12 is positioned at the side of spool 1 lower end, as long as spool 1 leaves the first valve position, oil inlet hole 51 just can be communicated with the first port by valve pocket 5, and lubricant oil is introduced into valve pocket 5 from oil inlet hole 51, inlet passage 12 again, and then flow out from oil outlet 52.
After fuel feeding completes, lubricant pump 200 quits work, be first oil feed line 400 oil extractions by the two-position three-way valve in lubricant pump 200 outlet ports, even if the stickiness of lubricant oil is higher, also can make the pressure in oil feed line 400 suitably reduce, also reduced the pressure at auxiliary draining valve oil inlet hole 51 places simultaneously, spring 2 in auxiliary draining valve is supported spool 1, make spool 1 can overcome the pressure in oil inlet hole 51 and oil feed line 400, move to the first valve position from second valve position, the displacement distance of spool 1 can make the valve pocket 5 of spool 1 upper end form a vacuum chamber, pressure in vacuum chamber is lower, the lubricant oil of distributor 300 ingress will enter vacuum chamber by oil outlet 52, the drained parts of lubricating oil of distributor 300 ingress, fully reduce the lubricant oil residual pressure of distributor 300 ingress.
Under the assistance of auxiliary draining valve, the oil supply component in distributor 300 can overcome the lubricant oil residual pressure of distributor 300 ingress and normally reset, and distributor 300 can normally move, and the centralized lubrication device at distributor 300 places also can normally be worked.
Concrete, on the structure of spool 1 inner gateway 12 and valve body 3, the structure of oil outlet 52 can have various ways, meets the following conditions: when spool 1 is positioned at the first valve position, path 12 is not communicated with oil inlet hole 51 and oil outlet 52; When spool 1 is positioned at the second valve position, path 12 is communicated with oil inlet hole 51 and oil outlet 52.
In a kind of concrete mode of execution, path 12 comprises that alternate path 122, the first ports that have the first path 121 of the first port and have the second port are positioned at the lower end surface of spool 1, and the first path 121 and alternate path 122 are in the internal communication of spool 1.
As shown in Figures 2 and 3, the area of the first port can be less than the area of oil inlet hole 51 to concrete structure, and when spool 1 is positioned at the first valve position, the lubricant oil entering from oil inlet hole 51 pushes the lower end surface of spool 1 and the upper-end surface of the first path 121 simultaneously.When spool 1 moves to the second valve position, alternate path 122 is communicated with oil outlet 52, and lubricant oil is just from assisting draining valve by entering distributor 300.
Further, in concrete mode of execution, spool 1 comprises the valve core 14 and the valve core case 15 that match, and valve core case 15 has locating shoulder 11, and the top of valve core 14 has the second port of path 12.
As shown in Figure 4, spool 1 is made up of two-part concrete structure, and valve body body 14 and valve block 15 are threaded, and at the two inner path 12 that forms, the side on the top of valve core 14 has at least one second port, and when spool 1 is positioned at the second valve position, each the second port all can be communicated with oil outlet 52.
In another concrete mode of execution, the elongated slot 13 that path 12 vertically distributes for spool 1 side.
Concrete, when spool 1 is positioned at the second valve position, the lubricant oil that enters valve pocket 5 can enter elongated slot 13 by the side of elongated slot 13 lower ends, after elongated slot 13, enters oil outlet 52 and flow out from the side of elongated slot 13 upper ends.
A kind of preferred structure is, the lower end of elongated slot 13 is opening-like, as shown in Figure 5, when spool 1 is positioned at the first valve position, the lubricant oil extruding lower end surface of spool 1 and the upper end 131 of elongated slot 13 that enter from oil inlet hole 51; When spool 1 moves to the second valve position, the side of upper end 131 is communicated with oil outlet 52, and lubricant oil just passes through from auxiliary draining valve, and the opening of elongated slot 13 lower ends is the first port, and the side of upper end is the second port.
In above-mentioned each concrete mode of execution, the limited step 53 of valve pocket 5 sides can only have a step, limited step 53 is supported in spring 2 upper ends, and the valve pocket 5 of this structure can be determined by spring 2 the second valve position of spool 1, and when spring 2 is fully compressed, the position of spool 1 is the second valve position.
One preferred embodiment in, limited step 53 also can comprise two steps, be respectively spring limited step 531 and spool limited step 532, spring limited step 531 is positioned at the upside of spool limited step 532, spring limited step 531 is supported in the upper end of spring 2, and spool limited step 532 coordinates the limes superiors position that can determine spool 1 with locating shoulder 11.This structure valve body 3, the second valve position of spool 1 is determined by spool limited step 532.
That is to say, in said structure, limited step 53 can only limit the position of spring 2 upper ends, also can not only limit the position of spring 2 upper ends but also limit the second valve position of spool 1.When spool 1 moves between the first valve position and the second valve position, between the outer side surface of spool 1 and the inner side surface of valve pocket 5, being slidably matched, is the mobile guide of spool 1.
Concrete, as shown in Fig. 2,3 and 5, valve pocket 5 is the through hole on valve body 3 vertical directions, the inwall of valve pocket 5 and the side slip of spool 1 that are positioned at limited step 53 upsides are sealed and matched.
In this valve body structure, in valve body 3, spool limited step 532, to the distance of valve body 3 upper-end surfaces, is less than the distance of locating shoulder 11 to second ports in spool 1; The upper-end surface of bounding means 4 is greater than the length of spool 1 to the distance of the upper-end surface of valve body 3.
When spool 1 moves up, spool limited step 532 limits the limes superiors position of positioning step 11, it is the second valve position of spool 1, now, the second port of path 12 is higher than the upper-end surface of valve body 3, the second port is communicated with oil outlet 52, and path 12 has been communicated with oil inlet hole 51 and oil outlet 52, and path 12 is communicated with oil feed line 400 and distributor 300.
The limit inferior position of spool 1 has been determined in the upper-end surface of bounding means 4, spool limited step 532 has been determined the limes superiors position of spool 1, distance between two limit positions is the intended distance that spool 1 moves, intended distance needs long enough, make spool 1 in the process of getting back to initial position, can make the valve pocket 5 of spool 1 upside form vacuum chamber.
In the respective embodiments described above, valve body 3 can be connected with pipeline by outside thread 31.
In a kind of concrete structure, when the outside of valve body 3 upper ends has outside thread 31, auxiliary draining valve is connected with pipeline by outside thread 31, the internal diameter of pipeline is greater than the internal diameter of valve pocket 5, when spool 1 moves to the second valve position, the second port of path 12 is higher than the end face of valve body 3, i.e. path 12 and pipeline connection.
Please refer to Fig. 6 to Fig. 8, Fig. 6 is the structural representation of the 4th kind of embodiment of auxiliary draining valve provided by the utility model, Fig. 7 is the structural representation of the 5th kind of embodiment of auxiliary draining valve provided by the utility model, and Fig. 8 is the structural representation of the 6th kind of embodiment of auxiliary draining valve provided by the utility model.
In another preferred embodiment, valve body 3 comprises the upper valve body 34 and the lower valve body 35 that match, and bounding means 4 is the boss 33 of lower valve body 35 inside, and the lower end of upper valve body 34 is at the interior formation limited step 53 of lower valve body 35.
As shown in Figure 8, valve body 3 is made up of two-part concrete structure, and the boss 33 of lower valve body 35 inside is located the first valve position of spool 1 as bounding means 4.Upper valve body 34 and lower valve body 35 are threaded, and upper valve body 34 lower ends have outside thread, and lower valve body 35 upper ends have internal thread, and after the two coordinates, the lower end of upper valve body 34 is as the upper end of limited step 53 retaining springs 2.
Concrete, the upper end of valve pocket 5 has reaming.
The structure of the oil outlet 52 of valve body 3 upper ends can be the structure shown in Fig. 2,3 and 5, valve pocket 5 upper ends can arrange expanding structure, as shown in Figure 6 and Figure 7, the reaming of valve pocket 5 upper ends has internal thread 32, auxiliary draining valve is connected with pipeline by internal thread 32, the internal diameter of pipeline need to be greater than the internal diameter of valve pocket 5, in the time that spool 1 moves to the second valve position, the second port of path 12 can with pipeline connection.
The structure of the oil outlet 52 of valve body 3 upper ends can be also the structure shown in Fig. 4 and 8, the through hole that oil outlet 52 is upper-end surface, the upper end of valve pocket 5 is expanding structure, when spool 1 is positioned at the second valve position, be communicated with the second port of oil outlet 52 and path 12 by the groove structure on expanding structure and spool 1 top.Valve body 3 upper ends are connected with pipeline by outside thread 31.
The valve body 3 of this structure, its upper-end surface can be that spool 1 is spacing, the second valve position of location spool 1, when spool 1 is supported the upper-end surface of valve body 3, spool 1 is positioned at the second valve position, just opens the second port of path 12.
In another kind of concrete mode of execution, valve seat or the circlip of bounding means 4 for coordinating with valve body 3.
When bounding means 4 is valve seat, as shown in Fig. 2,3 and 5, valve seat and valve body 3 screw-thread fit, oil inlet hole 51 is arranged on valve body.When bounding means 4 is circlip, as shown in Fig. 4,6 and 7, the downside of valve body 3 inside has the groove coordinating with circlip, can limit the position of spool 1, and oil inlet hole 51 is arranged on valve body 3, and through circlip.
Please refer to Fig. 9, Fig. 9 is the structural representation of a kind of embodiment of centralized lubrication device provided by the utility model.
Except above-mentioned auxiliary draining valve, the utility model also provides a kind of centralized lubrication device, comprise distributor 300 and oil feed line 400, also comprise auxiliary draining valve as above, oil feed line 400 is connected with distributor 300 by auxiliary draining valve, and auxiliary draining valve is positioned at the ingress of distributor 300.Other structures of centralized lubrication device please refer to prior art, repeat no more herein.
Concrete, centralized lubrication device comprises the combination of multiple auxiliary draining valves and distributor 300, each combination is connected in parallel in oil feed line 400.
In centralized lubrication device when work,, lubricant pump 200 is by oil feed line 400 and above-mentioned auxiliary lubricating device to distributor 300 fuel feeding, and distributor 300, according to the needs of each lubricating point, provides corresponding lubricant oil to each lubricating point.Because auxiliary feather valve has above-mentioned technique effect, also there is corresponding technique effect therefore there is the centralized lubrication device of above-mentioned auxiliary draining valve.
Above auxiliary draining valve provided by the utility model and centralized lubrication device are described in detail.Applied specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation is just for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (11)
1. an auxiliary draining valve, is characterized in that, comprises spool (1), spring (2) and has the valve body (3) of valve pocket (5); Described spool (1) is positioned at described valve pocket (5), and the downside of described valve pocket (5) is provided with bounding means (4), and described bounding means (4) is determined the limit inferior position of described spool (1);
The downside of described spool (1) is provided with the oil inlet hole (51) of described valve pocket (5), and the upper-end surface of described valve body (3) is provided with the oil outlet (52) of described valve pocket (5), and the side of described valve pocket (5) has the limited step (53) towards downside; The outside of described spool (1) lower end has the locating shoulder (11) towards upside, and described limited step (53) is supported in the upper end of described spring (2), and described locating shoulder (11) is supported in lower end;
Described spool (1) has path (12), the first port of described path (12) is positioned at the bottom of described spool (1), can be communicated with described oil inlet hole (51), the second port is positioned at the side on described spool (1) top, described spool (1) can compress described spring (2) intended distance that moves up in described valve pocket (5), and described the second port is communicated with described oil outlet (52).
2. assist as claimed in claim 1 draining valve, it is characterized in that, described path (12) comprises first path (121) with described the first port and the alternate path (122) with described the second port, described the first port is positioned at the lower end surface of described spool (1), and described the first path (121) and described alternate path (122) are in the internal communication of described spool (1).
3. assist as claimed in claim 2 draining valve, it is characterized in that, described spool (1) comprises the valve core (14) and the valve core case (15) that match, described valve core case (15) has described locating shoulder (11), and the top of described valve core (14) has described second port of described path (12).
4. assist as claimed in claim 1 draining valve, it is characterized in that the elongated slot (13) that described path (12) vertically distributes for described spool (1) side.
5. auxiliary draining valve as described in claim 1 to 4 any one, it is characterized in that, described limited step (53) comprises spring limited step (531) and spool limited step (532), described spring limited step (531) is positioned at the upside of described spool limited step (532), described spring limited step (531) is supported in the upper end of described spring (2), and described spool limited step (532) coordinates with described locating shoulder (11) the limes superiors position that can determine described spool (1).
6. assist as claimed in claim 5 draining valve, it is characterized in that, described valve pocket (5) is the through hole on described valve body (3) vertical direction, and the inwall of described valve pocket (5) and the side slip of described spool (1) that are positioned at described limited step (53) upside are sealed and matched.
7. auxiliary draining valve as described in claim 1 to 4 any one, it is characterized in that, described valve body (3) comprises the upper valve body (34) and the lower valve body (35) that match, described bounding means (4) is the inner boss (33) of described lower valve body (35), and the lower end of described upper valve body (34) forms described limited step (53) in described lower valve body (35).
8. auxiliary draining valve as described in claim 1 to 4 any one, is characterized in that, the upper end of described valve pocket (5) has reaming.
9. auxiliary draining valve as described in claim 1 to 4 any one, is characterized in that, described bounding means (4) is valve seat or the circlip coordinating with described valve body (3).
10. a centralized lubrication device, comprise distributor (300) and oil feed line (400), it is characterized in that, also comprise the auxiliary draining valve described in claim 1 to 9 any one, described oil feed line (400) is connected with described distributor (300) by described auxiliary draining valve, and described auxiliary draining valve is positioned at the ingress of described distributor (300).
11. centralized lubrication devices as claimed in claim 10, is characterized in that, described centralized lubrication device comprises the combination of multiple described auxiliary draining valves and described distributor (300), and each described combination is connected in parallel in described oil feed line (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420034178.3U CN203656547U (en) | 2014-01-20 | 2014-01-20 | Auxiliary oil draining valve and centralized lubrication device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420034178.3U CN203656547U (en) | 2014-01-20 | 2014-01-20 | Auxiliary oil draining valve and centralized lubrication device |
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| Publication Number | Publication Date |
|---|---|
| CN203656547U true CN203656547U (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420034178.3U Expired - Lifetime CN203656547U (en) | 2014-01-20 | 2014-01-20 | Auxiliary oil draining valve and centralized lubrication device |
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| CN (1) | CN203656547U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759123A (en) * | 2014-01-20 | 2014-04-30 | 郑州奥特科技有限公司 | Auxiliary oil draining valve and centralized lubricating device |
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- 2014-01-20 CN CN201420034178.3U patent/CN203656547U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759123A (en) * | 2014-01-20 | 2014-04-30 | 郑州奥特科技有限公司 | Auxiliary oil draining valve and centralized lubricating device |
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