CN101876314A - Engineering machinery and multi-path synchronous lubricating device thereof - Google Patents
Engineering machinery and multi-path synchronous lubricating device thereof Download PDFInfo
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- CN101876314A CN101876314A CN2009102594501A CN200910259450A CN101876314A CN 101876314 A CN101876314 A CN 101876314A CN 2009102594501 A CN2009102594501 A CN 2009102594501A CN 200910259450 A CN200910259450 A CN 200910259450A CN 101876314 A CN101876314 A CN 101876314A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N25/00—Distributing equipment with or without proportioning devices
- F16N25/02—Distributing equipment with or without proportioning devices with reciprocating distributing slide valve
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Abstract
The invention discloses a multi-path synchronous lubricating device, which comprises a lubricating grease pump (2)supplying oil to a valve body assembly or returning oil from the valve body assembly alternately through a first oil port (26) and a second oil port (27); the valve body assembly comprises at least two lubricating grease distribution mechanisms (3) with the same structure and size; and each lubricating grease distribution mechanism (3) outputs the lubricating grease outwards through a first oil outlet (321) and a second oil outlet (322). The multi-path synchronous lubricating device realizes synchronous quantitative lubrication for multiple lubricating points and improves the lubricating effect of the lubricating device.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of multi-path synchronous lubricating device.The invention still further relates to a kind of engineering machinery that comprises above-mentioned multi-path synchronous lubricating device.
Background technique
Along with the fast development of China's economic construction, the large-scale engineering machinery that is used for construction such as high building, viaduct has obtained application more and more widely, and various engineering machinery all need its moving element is lubricated in the process of using.
Be that example is introduced a kind of typical lubricating fitting below with the concrete pump.
In the using process of concrete pump, in order to guarantee its service behaviour and Security, between the moving element that respectively is in contact with one another, lubricated very important between the moving elements such as transmission and concrete transmission cylinder and piston especially, therefore, in concrete pump, generally be provided with lubricating fitting.
Please refer to Fig. 1, Fig. 1 is a kind of principle schematic that typically is used for the lubricating fitting of concrete pump in the prior art.
In the prior art, the lubricating fitting of concrete pump comprises beidirectional grease pump 13, the left rodless cavity of this grease pump 13 and right rodless cavity are communicated with outside oil circuit by oil pipe respectively, its left rod chamber and right rod chamber are communicated with grease box 11 by oil pipe respectively, and are provided with fat filter 12 between grease box 11 and grease pump 13; Left side rod chamber is communicated with the left oil inleting port of two-way valve 17, and an end of this left oil inleting port is connected by the interior left one-way valve of two-way valve 17 and with left modulating valve, and the other end is communicated with first lubricating point 141 on the conveying cylinder, and provides lubricating grease for this first lubricating point 141; Correspondingly, right rod chamber is communicated with the right filler opening of two-way valve 17, one end of this right side filler opening is communicated with by the right one-way valve in the two-way valve 17 and with right modulating valve, and the other end is communicated with second lubricating point 142 on the conveying cylinder, and provides lubricating grease for second lubricating point 142.
The direction of arrow is the direction that lubricating grease flows into grease pump 13 among the figure.When the piston that drives above-mentioned grease pump 13 when hydraulic oil moved right, the volume of left rod chamber dwindled, and the lubricating grease in the left rod chamber is pressed towards the left oil inleting port of two-way valve 17, and injects first lubricating point of carrying on the cylinder 141 by an end of left oil inleting port; Lubricating grease with pressure enters left modulating valve from the other end of left oil inleting port by left one-way valve, and when the pressure of lubricating grease surpassed the unloading pressure of left modulating valve, lubricating grease entered grease box 11 by left modulating valve.Correspondingly, the piston that drives grease pump 13 when hydraulic oil is during to left movement, and grease pump 13 provides lubricating grease for above-mentioned second lubricating point 142, and its detailed process and said process are corresponding, do not repeat them here.
Above-mentioned lubricating fitting can provide lubricated according to the lubrication state of carrying two different lubricating points on the cylinder.But, along with other Products Development of big CID class and the production of concrete pump, carry the diameter of cylinder also to increase, therefore thereupon, above-mentionedly can only can't satisfy lubricated needs to the lubricating fitting that two lubricating points carry out intermittent oilling, it is lubricated synchronously to reach multiple spot.
Please refer to Fig. 2, Fig. 2 is the structural representation of the synchronous lubricating system of a kind of multichannel in the prior art.
Carry the cylinder can't the lubricated synchronously problem of multiple spot in order to solve major diameter, generally realize that by the mode that tee union 10 is installed the shunt of lubricating grease is lubricated on lubricating pipe.Realize lubricating by the tee union 10 that is arranged on the working connection to first lubricating point 141 and second lubricating point 142 on the conveying cylinder.But, lubricating point by tee union 10 shuntings pressure reduction can occur at work inevitably, also a plurality of lubricating points after the i.e. shunting are different with the resistance between the filler opening, apparently, when pressure reduction occurring, lubricating grease can flow to resistance less a road, thereby can not realize that each point is lubricated synchronously effectively.
In sum, how to make the lubricated synchronously synchronous effectively quantitative lubricating of lubricating point realization of a plurality of needs on the relatively large engineering machinery, just become the problem that those skilled in the art need solve thereby improve lubrication effect.
Summary of the invention
The purpose of this invention is to provide multi-path synchronous lubricating device, it can realize the synchronous quantitative lubricating of equipment with multiple lubrication point preferably, thereby has lubrication effect preferably; Another object of the present invention provides a kind of engineering machinery that comprises above-mentioned multi-path synchronous lubricating device.
For solving the problems of the technologies described above, the invention provides a kind of multi-path synchronous lubricating device, comprise by first hydraulic fluid port and second hydraulic fluid port alternately to the valve component fuel feeding or from the grease pump of valve component oil return, and the grease box that is used to store lubricating grease; Described valve component comprise at least two parallel with one another, and the identical lubricating grease distributing mechanism of the physical dimension of internal cavity, each lubricating grease distributing mechanism is equipped with the oil outlet of exporting lubricant oil to different lubricating points synchronously.
Preferably, each described lubricating grease distributing mechanism all has the first piston chamber and second piston cavity, and both are by being communicated with near the first passage of first end face and the second channel of close second end face; Second piston cavity has first oil outlet and second oil outlet; First hydraulic fluid port and second hydraulic fluid port and second piston cavity are communicated in described first end face and described second end face respectively;
The first piston of being located in the first piston chamber comprises seal, and lays respectively at seal two ends and external diameter all less than the first drain post and the second drain post of seal;
Second piston of being located in second piston cavity comprises first seal, second seal and middle part seal, has first connecting rod between first seal and the middle part seal, has second connecting rod between second seal and the middle part seal;
First passage on the first piston chamber opening and the distance of first end face in first piston chamber less than the axial length of the first drain post, and first passage on second piston cavity opening and the distance of first end face of second piston cavity greater than the axial length of first seal; Second channel on the first piston chamber opening and the distance of second end face in first piston chamber less than the axial length of the second drain post, and second channel on second piston cavity opening and the distance of second end face of second piston cavity greater than the axial length of second seal;
The distance of first end face of first oil outlet and second piston cavity is greater than the axial length of first seal, less than the axial length sum of first seal and first connecting rod; The distance of second end face of second oil outlet and second piston cavity is greater than the axial length of second seal, less than the axial length sum of second seal and second connecting rod.
Preferably, the number of described lubricating grease distributing mechanism is at least three, and first oil outlet of arbitrary at least described lubricating grease distributing mechanism and second oil outlet be communicated with by being communicated with oil circuit, and offers on the described connection oil circuit and recycle hydraulic fluid port.
Preferably, grease pump comprises first cavity and second cavity of coaxial setting, and the outer end of two cavitys has the power hydraulic fluid port respectively;
First plunger of being located in first cavity is connected with the connecting rod of second plunger by suitable length in being located at second cavity;
Described first hydraulic fluid port is opened in the inner end of described first cavity, and is opened in the outside that first filler opening on described first cavity is positioned at described first hydraulic fluid port; Described second hydraulic fluid port is opened in the inner end of described second cavity, and is opened in the outside that second filler opening on described second cavity is positioned at described second hydraulic fluid port;
The distance of the exterior edge face of described first filler opening and described first cavity is greater than the axial length of described first plunger; The distance of the exterior edge face of described second filler opening and described second cavity is greater than the axial length of described second plunger.
Preferably, described grease pump and described valve component have integral structure.
Preferably, described grease pump and described valve component have split-type structural.
Preferably, has split type structure between each the lubricating grease distributing mechanism in the described valve component.
The present invention also provides a kind of engineering machinery, comprises above-mentioned each described multi-path synchronous lubricating device.
Preferably, be specially concrete pump, described multi-path synchronous lubricating device provides lubricated for the moving element of described concrete pump.
Multi-path synchronous lubricating device provided by the present invention comprises by first hydraulic fluid port and second hydraulic fluid port alternately to the valve component fuel feeding or from the grease pump of valve component oil return, and the grease box that is used to store lubricating grease; Described valve component comprise at least two parallel with one another, and the lubricating grease distributing mechanism that the physical dimension of inside cavity is identical, each lubricating grease distributing mechanism all has oil outlet, so that each described lubricating grease distributing mechanism passes through oil outlet separately, exports lubricant oil synchronously to different lubricating points.Because the structure between each lubricating grease distributing mechanism is identical, then each lubricating grease distributing mechanism is identical by the volume of the lubricating grease of corresponding arbitrary outlet release, be the difference of the volume and the first piston in first piston chamber, thereby realized the synchronous quantitative lubricating of equipment with multiple lubrication point, and then improved the lubrication effect of multiple spot synchronous lubricating device.
A kind of preferred embodiment in, the number of lubricating grease distributing mechanism provided by the present invention is at least three, and first oil outlet of arbitrary at least lubricating grease distributing mechanism and second oil outlet are communicated with by being communicated with oil circuit, and are communicated with to offer on the oil circuit and recycle hydraulic fluid port.Like this, when fuel-displaced or second oil outlet was fuel-displaced when first oil outlet, the lubricating grease of its outflow all can enter the connection oil circuit, and by the lubricating point that hydraulic fluid port flows to needs continuous lubrication that recycles on this connection oil circuit; Like this, can carry out continuous lubrication to the appointment lubricating point that needs continuous lubrication, thereby further improve the lubrication effect of device by the circulation piston set, and then the working life of having improved engineering machinery.
Description of drawings
Fig. 1 is a kind of principle schematic that typically is used for the lubricating fitting of concrete pump in the prior art;
Fig. 2 is the structural representation of the synchronous lubricating system of a kind of multichannel in the prior art;
Fig. 3 is the principle schematic of multi-path synchronous lubricating device provided by the present invention;
Fig. 4 is the structural representation of a kind of embodiment of multi-path synchronous lubricating device provided by the present invention;
Fig. 5 is the structure enlarged view of a kind of embodiment of lubricating grease distributing mechanism of multi-path synchronous lubricating device provided by the present invention;
Fig. 6 is the structural representation of the another kind of embodiment of multi-path synchronous lubricating device provided by the present invention.
Embodiment
Core of the present invention provides a kind of multi-path synchronous lubricating device, and it can realize the synchronous quantitative lubricating of the equipment with multiple lubrication point on the engineering machinery preferably, thereby has lubrication effect preferably; Another core of the present invention provides a kind of engineering machinery that comprises above-mentioned lubricating fitting.
In order to make those skilled in the art person understand technological scheme of the present invention better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 3, Fig. 4 and Fig. 5, Fig. 3 is the principle schematic of multi-path synchronous lubricating device provided by the present invention; Fig. 4 is the structural representation of a kind of embodiment of multi-path synchronous lubricating device provided by the present invention; Fig. 5 is the structure enlarged view of a kind of embodiment of lubricating grease distributing mechanism of multi-path synchronous lubricating device provided by the present invention.
In a kind of embodiment, multi-path synchronous lubricating device provided by the present invention comprises grease pump 2 (being marked among Fig. 4) and valve component; This grease pump 2 has first hydraulic fluid port 26 and second hydraulic fluid port 27 near a side of valve component, and replace to the valve component fuel feeding or from the valve component oil return by first hydraulic fluid port 26 and second hydraulic fluid port 27, particularly, when first hydraulic fluid port 26 during to the valve component fuel feeding, second hydraulic fluid port 27 is from the valve component oil return, and when first hydraulic fluid port 26 during from the valve component oil return, second hydraulic fluid port 27 is to the valve component fuel feeding, two hydraulic fluid ports hocket fuel feeding work and oil return work;
Above-mentioned valve component comprises at least two lubricating grease distributing mechanisms 3 that physical dimension is identical, each lubricating grease distributing mechanism 3 all has the first piston chamber 31 and second piston cavity 32, and first piston chamber 31 and second piston cavity 32 are by being communicated with near the first passage 331 of first end face with near the second channel 332 of second end face; Second piston cavity 32 has first oil outlet 321 and second oil outlet 322, and two oil outlets are alternately to different lubricating point fuel feeding; Particularly, above-mentioned first end face is C plane shown in Figure 4, and second end face is D plane shown in Figure 4.
The physical dimension of above-mentioned lubricating grease distributing mechanism 3 is identical to be meant, the physical dimension of the inside cavity of this mechanism is identical, and its wall thickness and boundary dimension are not subjected to the restriction of this specification.
The above-mentioned first piston chamber 31 and second piston cavity 32 can be cylindrical body, can certainly can realize the shape of function of use for other.
Apparently, the first end face C and the second plane D among Fig. 4 are horizontal plane, and certainly, both ends of the surface also are not limited to horizontal plane, and the first end face C is specially the plane that first end face 323 of first end face 311 in first piston chamber and second piston cavity is formed; Correspondingly, the second end face D is specially the plane that second end face 324 of second end face 312 in first piston chamber and second piston cavity is formed.Above-mentioned first hydraulic fluid port 26 and second hydraulic fluid port 27 are communicated with by first end face 323 of second piston cavity and second end face 324 of second piston cavity respectively.
The first piston of being located in the first piston chamber 31 34 comprises seal 341, and lays respectively at seal 341 two ends and external diameter all less than the first drain post 342 and the second drain post 343 of seal 341; Above-mentioned seal 341 is specially the shape of radial cross section and the solid that shape is identical and its external diameter equates with the internal diameter in first piston chamber 34 of the radial cross section in first piston chamber 31.
Be provided with second piston in second piston cavity 32, this second piston comprises first seal 351, second seal 352 and middle part seal 353, have between first seal 351 and the middle part seal 353 between first connecting rod 354, the second seals 352 and the middle part seal 353 and have second connecting rod 355; With above similarly, above-mentioned first seal 351, second seal 352 and intermediate seal body 353 are the shape of radial cross section and the solid that shape is identical and its external diameter equates with the internal diameter of second piston cavity 32 of the radial cross section of second piston cavity 32, and the external diameter of first connecting rod 354 and second connecting rod 355 is all less than the external diameter of each seal.
The distance of first end face 323 of first oil outlet 321 and second piston cavity is greater than the axial length of first seal 351, less than the axial length sum of first seal 351 with first connecting rod 354, the distance of second end face 324 of second oil outlet 322 and second piston cavity is greater than the axial length of second seal 352, less than the axial length sum of second seal 352 with second connecting rod 355; Because oil outlet (i.e. first oil outlet 321 or second oil outlet 322) and and its close end face (i.e. second end face 324 of first end face 323 of second piston cavity or second piston cavity) between distance greater than the axial length of this side sealing body (i.e. first seal 351 or second seal 352 or middle part seal 353), and less than the axial length sum of this side sealing body and this side connecting rod (being first connecting rod 354 or second connecting rod 355), then enter in the process of second piston cavity 32 at lubricating grease, oil outlet near its inlet end is closed by being opened to gradually, and opens by being closed to gradually away from the oil outlet of lubricating grease inlet end; After the passage of the lubricating grease inlet end on second piston cavity 32 is opened, lubricating grease enters an end of first piston chamber 31 and this channel connection by this passage, thereby promote the other end motion of first piston 34, the lubricating grease in the other end is released by the outlet of opening on second piston cavity 32 to first piston chamber 31.
Well-known, in multi-path synchronous lubricating device provided by the present invention, also comprise grease box 1, this grease box 1 is communicated with grease pump 2 by first filler opening 28 and second filler opening 29, so that provide and store lubricating grease for device.
Above-mentioned grease box 1 can be volume and the suitable frame casing of outer wall thickness, and its shape also is not limited to frame certainly, also can be cylindrical tank etc.
Apparently, the main effect of above-mentioned grease box 1 is to provide and to store lubricating grease for lubricating fitting, can realize that the container class device of above-mentioned purpose all can be used as the concrete form of grease box 1, and its concrete shape and tank material should not be subjected to the restriction of this specification.
When first hydraulic fluid port 26 or second hydraulic fluid port 27 during to the valve component fuel feeding, lubricating grease enters second piston cavity 32 from first end face 323 of second piston cavity or second end face 324 of second piston cavity, promoting second piston moves to the other end, at this moment, because oil outlet and and its close end face between distance greater than the axial length of this side sealing body, and less than the axial length sum of this side sealing body and this side connecting rod, then enter in the process of second piston cavity 32 at lubricating grease, oil outlet near its inlet end is closed by being opened to gradually, and opens by being closed to gradually away from the oil outlet of lubricating grease inlet end.
Simultaneously, because the distance of first passage 331 or second channel 332 end face close with it on the opening on second piston cavity 32 and this piston cavity is greater than the axial length of this side sealing body, then lubricating grease enters in the process of second piston cavity 32, passage near the lubricating grease inlet end is opened by being closed to gradually, and closes by being opened to gradually away from the passage of lubricating grease inlet end.
Since first passage 331 or second channel 332 on first piston chamber 31 opening and the distance of the end face close with it less than the axial length of this side drain post, then first passage 331 and the opening of second channel 332 on first piston chamber 31 are in the state of opening all the time.
After the passage of the lubricating grease inlet end on second piston cavity 32 is opened, lubricating grease enters an end of first piston chamber 31 and this channel connection by this passage, thereby promote the other end motion of first piston 34, the lubricating grease in the other end is released by the outlet of opening on second piston cavity 32 to first piston chamber 31.Because the structure between each lubricating grease distributing mechanism 3 is identical, then the volume of the lubricating grease released by arbitrary outlet correspondingly of each lubricating grease distributing mechanism 3 is identical, be the difference of the volume and the first piston 34 in first piston chamber 31, and the physical dimension of each lubricating grease distributing mechanism 3 is identical, then the lubricating grease volume of Pai Chuing is identical, thereby realized the synchronous quantitative lubricating of equipment with multiple lubrication point, and then improved the lubrication effect of multiple spot synchronous lubricating device.
Can also further improve multi-path synchronous lubricating device provided by the present invention.
Please continue with reference to figure 4, in another kind of embodiment, the number of lubricating grease distributing mechanism 3 provided by the present invention can be at least three, and first oil outlet 321 of arbitrary at least lubricating grease distributing mechanism 3 and second oil outlet 322 are communicated with by being communicated with oil circuit 36, are communicated with to offer on the oil circuit 36 to recycle hydraulic fluid port 361.When fuel-displaced or second oil outlet 322 was fuel-displaced when first oil outlet 321, the lubricating grease of its outflow all can enter and be communicated with oil circuit 36, and by the lubricating point that hydraulic fluid port 361 flow directions need continuous lubrication that recycles on this connections oil circuit 36.
Like this, can carry out continuous lubrication to the appointment lubricating point that needs continuous lubrication, thereby further improve the lubrication effect of device by the circulation piston set, and then the working life of having improved engineering machinery.
Apparently, the number of above-mentioned lubricating grease distributing mechanism 3 is not limited to two or three, under the situation that operating conditions allows, and also can be for more a plurality of; Similarly, also be not limited to and have only one group of lubricating grease distributing mechanism 3 to have the hydraulic fluid port of recycling 361.
The concrete structure of above-mentioned grease pump 2 can be structure hereinafter described:
Grease pump 2 comprises that the outer end of first cavity 21 and second cavity, 22, two cavitys has the power hydraulic fluid port respectively; First plunger of being located in first cavity 21 23 is connected with the connecting rod 25 of second plunger 24 by suitable length in being located at second cavity 22; First cavity 21 has near first filler opening 28 of its exterior edge face and first hydraulic fluid port, 26, the second cavitys 22 that are positioned at first filler opening, 28 the inners and has near second filler opening 29 of its exterior edge face and be positioned at second hydraulic fluid port 27 of second filler opening, 29 the inners; The distance of the exterior edge face of first filler opening 28 and first cavity 21 is greater than the axial length of first plunger 23, and the distance of the exterior edge face of first hydraulic fluid port 26 and first cavity 21 is greater than the axial length of first plunger 23, less than the axial length of first cavity 21; The distance of the exterior edge face of second filler opening 29 and second cavity 22 is greater than the axial length of second plunger 24, and the distance of the exterior edge face of second hydraulic fluid port 27 and second cavity 22 is greater than the axial length of second plunger 24, less than the axial length of second cavity 22.Like this, can be the valve component fuel feeding preferably, working efficiency is comparatively stable, and is simple in structure.
Can also further improve multi-path synchronous lubricating device provided by the present invention.
Please refer to Fig. 6, Fig. 6 is the structural representation of the another kind of embodiment of multi-path synchronous lubricating device provided by the present invention.
In another kind of embodiment, the grease pump 2 and the valve component of lubricating fitting provided by the present invention can have integral structure, also be that grease pump 2 is integrated in the shell with valve component, like this, make that the structure of device is simpler, volume is less, and the required pipeline in integrated back is less, reduce the danger that pipeline is revealed, thereby improved the reliability of device.
When grease pump 2 is provided with the valve component integral type, grease pump 2 can be arranged at side by side the left side of valve component, its working principle is identical with above-mentioned working principle, does not repeat them here.
Apparently, when grease pump 2 and valve component are provided with the structure of integral type, also be not limited to the left side that grease pump 2 is arranged at valve component, also can it be arranged at other positions according to factors such as complete machine layouts, as long as can satisfy the usage requirement of the two, its concrete set-up mode should not be subjected to the restriction of this specification.
Please continue with reference to figure 4, above-mentioned grease pump 2 and valve component can have split-type structural, also be that grease pump 2 is made up of pump housing body and outside independent gland thereof, and valve component are made up of valve body body and outside independent gland thereof.Like this, grease pump 2 and valve component can be processed respectively, have simplified manufacturing procedure; Simultaneously, the two can keep in repair respectively and change, and has simplified maintenance process, thereby has saved maintenance cost.
Above-mentioned grease pump 2 also is not limited to the top that is arranged at valve component, also can make the two have other set-up mode according to the taking all factors into consideration of many-sided factors such as layout of actual conditions and complete machine.
Also can have split-type structural between above-mentioned each lubricating grease distributing mechanism 3, also be that the surface of each lubricating grease distributing mechanism 3 has gland respectively, and like this, each lubricating grease distributing mechanism 3 can be processed respectively, has simplified manufacturing procedure; Simultaneously, each lubricating grease distributing mechanism 3 can keep in repair respectively and change, and has simplified maintenance process, thereby has saved maintenance cost.
Except above-mentioned multi-path synchronous lubricating device, the present invention also provides a kind of engineering machinery that comprises above-mentioned multi-path synchronous lubricating device.
Particularly, above-mentioned engineering machinery can be concrete pump, and multi-path synchronous lubricating device passes through lubricating grease for moving elements such as its conveying cylinders.The structure of other each several parts of this concrete pump please refer to prior art, does not repeat them here.
More than a kind of engineering machinery provided by the present invention and multi-path synchronous lubricating device thereof are described in detail.Used specific case herein principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (9)
1. multi-path synchronous lubricating device comprises by first hydraulic fluid port (26) and second hydraulic fluid port (27) alternately to the valve component fuel feeding or from the grease pump (2) of valve component oil return, and the grease box (1) that is used to store lubricating grease; It is characterized in that, described valve component comprise at least two parallel with one another, and the identical lubricating grease distributing mechanism (3) of the physical dimension of inside cavity, each lubricating grease distributing mechanism (3) is equipped with the oil outlet of exporting lubricant oil to different lubricating points synchronously.
2. multi-path synchronous lubricating device according to claim 1 is characterized in that,
Each described lubricating grease distributing mechanism (3) all has first piston chamber (31) and second piston cavity (32), and both are by being communicated with near the first passage (331) of first end face and the second channel (332) of close second end face; Second piston cavity (32) has first oil outlet (321) and second oil outlet (322); First hydraulic fluid port (26) and second hydraulic fluid port (27) are communicated in described first end face and described second end face respectively with second piston cavity (32);
The first piston of being located in the first piston chamber (31) (34) comprises seal (341), and lays respectively at seal (341) two ends and external diameter all less than the first drain post (342) and the second drain post (343) of seal (341);
Second piston of being located in second piston cavity (32) comprises first seal (351), second seal (352) and middle part seal (353), have first connecting rod (354) between first seal (351) and the middle part seal (353), have second connecting rod (355) between second seal (352) and the middle part seal (353);
First passage (331) on first piston chamber (31) opening and the distance of first end face (311) in first piston chamber less than the axial length of the first drain post (342), and first passage (331) on second piston cavity (32) opening and the distance of first end face (323) of second piston cavity greater than the axial length of first seal (351); Second channel (332) on first piston chamber (31) opening and the distance of second end face (312) in first piston chamber less than the axial length of the second drain post (343), and second channel (332) on second piston cavity (32) opening and the distance of second end face (324) of second piston cavity greater than the axial length of second seal (352);
The distance of first end face (323) of first oil outlet (321) and second piston cavity is greater than the axial length of first seal (351), less than the axial length sum of first seal (351) with first connecting rod (354); The distance of second end face (324) of second oil outlet (322) and second piston cavity is greater than the axial length of second seal (352), less than the axial length sum of second seal (352) with second connecting rod (355).
3. multi-path synchronous lubricating device according to claim 2, it is characterized in that, the number of described lubricating grease distributing mechanism (3) is at least three, and first oil outlet (321) of arbitrary at least described lubricating grease distributing mechanism (3) and second oil outlet (322) are communicated with by being communicated with oil circuit (36), and offer on the described connection oil circuit (36) and recycle hydraulic fluid port (361).
4. according to each described multi-path synchronous lubricating device of claim 1 to 3, it is characterized in that,
Described grease pump (2) comprises first cavity (21) and second cavity (22) of coaxial setting, and the outer end of two cavitys has the power hydraulic fluid port respectively;
First plunger of being located in first cavity (21) (23) is connected with the connecting rod (25) of second plunger (24) by suitable length in being located at second cavity (22);
Described first hydraulic fluid port (26) is opened in the inner end of described first cavity (21), and is opened in the outside that first filler opening (28) on described first cavity (21) is positioned at described first hydraulic fluid port (26); Described second hydraulic fluid port (27) is opened in the inner end of described second cavity (22), and is opened in the outside that second filler opening (28) on described second cavity (22) is positioned at described second hydraulic fluid port (27);
The distance of the exterior edge face of described first filler opening (28) and described first cavity (21) is greater than the axial length of described first plunger (23); The distance of the exterior edge face of described second filler opening (29) and described second cavity (22) is greater than the axial length of described second plunger (24).
5. multi-path synchronous lubricating device according to claim 4 is characterized in that, described grease pump (2) has integral structure with described valve component.
6. multi-path synchronous lubricating device according to claim 4 is characterized in that, described grease pump (2) has split-type structural with described valve component.
7. multi-path synchronous lubricating device according to claim 6 is characterized in that, has split type structure between each the lubricating grease distributing mechanism (3) in the described valve component.
8. an engineering machinery is characterized in that, comprises each described multi-path synchronous lubricating device of claim 1 to 7.
9. described according to Claim 8 engineering machinery is characterized in that, is specially concrete pump, and described multi-path synchronous lubricating device provides lubricated for the moving element of described concrete pump.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102594501A CN101876314A (en) | 2009-12-22 | 2009-12-22 | Engineering machinery and multi-path synchronous lubricating device thereof |
| PCT/CN2010/073750 WO2011075979A1 (en) | 2009-12-22 | 2010-06-10 | Engineering machine and multi-way synchronously lubricating device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102594501A CN101876314A (en) | 2009-12-22 | 2009-12-22 | Engineering machinery and multi-path synchronous lubricating device thereof |
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| CN101876314A true CN101876314A (en) | 2010-11-03 |
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| WO (1) | WO2011075979A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913448A (en) * | 2012-10-29 | 2013-02-06 | 三一重工股份有限公司 | Anti-blocking method, device and pumping machine for progressive distributor |
| CN102943951A (en) * | 2012-11-27 | 2013-02-27 | 中联重科股份有限公司 | Lubricating device and concrete mechanical equipment including lubricating device |
| CN103775810A (en) * | 2013-08-08 | 2014-05-07 | 温州市维东润滑设备制造有限公司 | Hydraulic supercharging lubricant pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4105094A (en) * | 1976-12-14 | 1978-08-08 | Houdaille Industries, Inc. | Single line lubricant reversing feeder |
| ATE62728T1 (en) * | 1987-11-19 | 1991-05-15 | Honeywell Lucifer Sa | CONTROL DEVICE FOR A PISTON-CYLINDER UNIT. |
| CN2108217U (en) * | 1991-12-21 | 1992-06-24 | 上海市申达油泵厂 | Oil dispenser for lubricating by manual action |
| CN2222647Y (en) * | 1995-02-20 | 1996-03-20 | 叶勇荣 | Lubricating grease injector for vehicle |
| CN1233949C (en) * | 2002-09-27 | 2005-12-28 | 三一重工股份有限公司 | Aoncrete transfer pump lubricating arrangement |
| DE102004022226A1 (en) * | 2004-05-04 | 2005-12-01 | Willy Vogel Aktiengesellschaft | Two-pipe distributor or progressive distributor for e.g. oil, has delivery chamber that doses distribution medium e.g. oil, delivered to opening, and leakage pipe provided to discharge distributor medium from sealing gap |
| CN201246595Y (en) * | 2008-08-29 | 2009-05-27 | 北京中冶华润科技发展有限公司 | Double-point supply valve type oil feeder |
-
2009
- 2009-12-22 CN CN2009102594501A patent/CN101876314A/en active Pending
-
2010
- 2010-06-10 WO PCT/CN2010/073750 patent/WO2011075979A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913448A (en) * | 2012-10-29 | 2013-02-06 | 三一重工股份有限公司 | Anti-blocking method, device and pumping machine for progressive distributor |
| CN102913448B (en) * | 2012-10-29 | 2015-11-25 | 三一汽车制造有限公司 | A kind of stepwise type distributor anti-blocking method, device and pumping machine |
| CN102943951A (en) * | 2012-11-27 | 2013-02-27 | 中联重科股份有限公司 | Lubricating device and concrete mechanical equipment including lubricating device |
| CN102943951B (en) * | 2012-11-27 | 2014-12-24 | 中联重科股份有限公司 | Lubricating device and concrete mechanical equipment including lubricating device |
| CN103775810A (en) * | 2013-08-08 | 2014-05-07 | 温州市维东润滑设备制造有限公司 | Hydraulic supercharging lubricant pump |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011075979A1 (en) | 2011-06-30 |
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Application publication date: 20101103 |