CN201884373U - Hydraulic oil circulation filtering mechanism of conducting wire hydraulic press-connection machine - Google Patents
Hydraulic oil circulation filtering mechanism of conducting wire hydraulic press-connection machine Download PDFInfo
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- CN201884373U CN201884373U CN2010206524239U CN201020652423U CN201884373U CN 201884373 U CN201884373 U CN 201884373U CN 2010206524239 U CN2010206524239 U CN 2010206524239U CN 201020652423 U CN201020652423 U CN 201020652423U CN 201884373 U CN201884373 U CN 201884373U
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Abstract
A hydraulic oil circulation filtering mechanism of a conducting wire hydraulic press-connection machine belongs to the technical field of construction equipment of power transmission and transformation circuits, and comprises an oil tank, a directional valve and an oil pump, wherein the directional valve is provided with a high pressure oil drainage hole, a gear-shifting oil return hole, a neutral gear oil return hole and a directional valve oil inlet hole; and the high pressure oil drainage hole, the gear-shifting oil return hole, and the neutral gear oil return hole are all communicated with the oil tank, the directional valve oil inlet hole is connected with the oil pump, and the oil pump is arranged in the oil tank. The hydraulic oil circulation filtering mechanism is characterized by comprising an oil return seat and a filter; the oil return seat is fixed with the bottom of the directional valve, arranged in the oil tank, and provide with an oil return cavity; the oil return cavity is communicated with the high pressure oil drainage hole, the gear-shifting oil return hole, and the neutral gear oil return hole; an oil return cavity oil outlet hole is formed at the bottom of the oil return seat; the filter is fixed with the oil return cavity oil outlet hole; and hydraulic oil from the oil return cavity oil outlet hole enters the oil tank by passing through the filter. The utility model has the advantages that the hydraulic oil circulation filtering mechanism of the conducting wire hydraulic press-connection machine can ensure the cleanness of the hydraulic oil, and remarkably prolong the period for replacing the hydraulic oil in the oil tank.
Description
Technical field
The utility model belongs to electric power power transmission and transformation line construction technique with the apparatus field, is specifically related to a kind of hydraulic oil circulating filtration mechanism of lead hydraulic pressure press-connection machine.
Background technique
Before the technological scheme of the hydraulic oil filtrating equipment of the hydraulic power unit that Chinese utility model patent notice of authorization CN2851680Y recommends, comprise Chinese patent ZL97235618.5,97235829.3,97235830.7, the related lead hydraulic pressure press-connection machine of ZL200420079628.7 and ZL200520077437.1 or the like all exists the 1st page of the 10th～15 pointed shortcoming of row of specification of CN2851680Y: need after the use through about 100h usually the hydraulic oil in the fuel tank is changed, otherwise can cause oil circuit to stop up and influence the proper functioning of pumping plant, and this patent (CN2851680Y) and then point out; Why will be to the periodic replacement of the hydraulic oil in the fuel tank, be because the hydraulic oil that is pumped from the high and low pressure oil pump through pressure-relief valve import selector valve, Press Plier, return lack in the whole process of fuel tank the hydraulic oil that returns fuel tank effectively filtered due to.Foreign material part in the hydraulic oil is the impurity that mechanical part self produces, and quite a few comes from the oil connection that is used for connecting the oil pipe between selector valve and the hydraulic tongs.Because lead hydraulic pressure press-connection machine needed by the construction operation person oil connection at oil pipe two ends to be fixedlyed connected with the interface on selector valve and the hydraulic tongs respectively before each the use, and after finishing using, need the oil connection at oil pipe two ends is separated with interface on selector valve and the hydraulic tongs, and oil connection very easily lands when collecting oil pipe, earth sand formation cuttings on the terrace are stained with and oil connection, so when enabling once more, be stained with and the booty on oil connection just enters fuel tank.The technological scheme that above-mentioned CN2851680Y provides can make oil changing interval prolong about 4 to 6 times the booty in the hydraulic oil such as effective filtration such as metal particle, sand grains.
But, there is following shortcoming in the technological scheme that above-mentioned CN2851680Y recommends: the one, and structure is comparatively complicated, this patent scheme is by crossing filter ruffle, filter element and filter lid constitute, on the wall body of crossing filter ruffle, set out oilhole, oil outlet communicates with fuel tank, filter element was located in the filter core chamber of filter ruffle, and filter element is by on the filter core, lower cover, papery filter core and magnetic screen constitute, magnetic screen is positioned at the central authorities of the cavity volume of papery filter core, inwall at the papery filter core is provided with filter screen, on the filter core, lower cover covers the two ends that fit over the papery filter core respectively, lid hole by means of the central authorities of filter core lower cover placed filter element in the filter core chamber of filter ruffle, and, make the sealing of filter core chamber by fixing corresponding to the filter lid at the uncovered position on top, filter element chamber and the case lid of fuel tank.Therefore, make and installation or change all very loaded down with trivial details no matter be; The 2nd, can only the wherein fluid in one tunnel in the three road binders roads of selector valve be filtered, all the other two oil circuits still show as the self-commutation valve and directly enter fuel tank, aforesaid three road binders roads are: neutral gear draining hole, gear shift spill port and high pressure draining hole (draining when surpassing setting pressure), therefore be halfway to the filtration of returning the fluid in the fuel tank, thereby still be not enough to prolong the cycle of fuel tank being changed fluid ultimate attainmently; The 3rd, because component number is many and complex structure, the expense of changing filter core is higher, increases application cost.
In view of above-mentioned prior art, be necessary to be improved, the applicant has carried out trial lastingly and repeatedly for this reason, has found the method that remedies above-mentioned technical problem finally, and technological scheme described below produces under this background.
Summary of the invention
Task of the present utility model is to provide a kind of helping that the hydraulic oil that selector valve enters three road oil circuits of fuel tank is filtered and cycle that nationality is changed hydraulic oil with the clean degree that ensures the fluid in the fuel tank and significant prolongation comprehensively, help simplified structure and nationality to embody the convenient hydraulic oil circulating filtration mechanism that makes, installs and change and be of value to the lead hydraulic pressure press-connection machine that reduces user cost.
Task of the present utility model is finished like this, a kind of hydraulic oil circulating filtration mechanism of lead hydraulic pressure press-connection machine, described lead hydraulic pressure press-connection machine includes a selector valve and the oil pump on the fuel tank cap that a fuel tank and is installed in fuel tank, selector valve has high pressure oil draining hole, gear shift spill port, neutral gear spill port and selector valve oil inlet hole, wherein; High pressure oil draining hole, gear shift spill port and neutral gear spill port all communicate with described fuel tank, and the selector valve oil inlet hole is connected with described oil pump, oil pump is located in the fuel tank, be characterised in that: described hydraulic oil circulating filtration mechanism comprises an oil return seat and a filter, the bottom of oil return seat and described selector valve is fixed, and be positioned at described fuel tank, this oil return seat has an oil back chamber, this oil back chamber and described high pressure oil draining hole, gear shift spill port and neutral gear spill port communicate, and offer an oil back chamber oil outlet in the bottom of oil return seat, filter and oil back chamber oil outlet are fixed, and the hydraulic oil that comes from the oil back chamber oil outlet is gone into fuel tank through filter is laggard.
In a specific embodiment of the present utility model, offer first, second spill port and the 3rd spill port on the roof of the oil back chamber of described oil return seat, wherein: first spill port is corresponding with described high pressure oil draining hole and communicate, second spill port is corresponding with described gear shift spill port and communicate, and the 3rd spill port is corresponding with described neutral gear spill port and communicate.
In another specific embodiment of the present utility model, described filter comprises interior cover, filter ruffle and connecting head, put the spaced apart draining hole that is provided with interior, filter ruffle is nested with outside interior cover, one end is by first filter ruffle lid cap seal, the other end is by second filter ruffle lid cap seal, and an end of connecting head fixes with first filter ruffle lid and communicates with the cavity volume of interior cover, and the other end of connecting head and described oil back chamber oil outlet are fixed.
In another specific embodiment of the present utility model, described filter ruffle is the double-layer stainless steel filter ruffle.
In another concrete enforcement of the present utility model, the inwall of described oil back chamber oil outlet is provided with internal thread, and the outer wall of described connecting head is provided with outside thread, and internal and external screw thread is fitted to each other.
The technological scheme that the utility model provides is owing to fixed an oil return seat with oil back chamber in the bottom of selector valve, offered the oil back chamber oil outlet in the bottom of oil return seat, on the oil back chamber oil outlet, connected a filter, and make high pressure oil draining hole, gear shift spill port and neutral gear spill port communicate with the oil back chamber of oil return seat, come from high pressure oil draining hole, the hydraulic oil of gear shift spill port and neutral gear spill port enters in the oil back chamber, by entering fuel tank after the filter filtration that is connected on the oil back chamber oil outlet, thereby can guarantee the cleaning of hydraulic oil, can prolong the cycle of changing the hydraulic oil in the fuel tank significantly.
Description of drawings,
Fig. 1 is a specific embodiment structural drawing of the present utility model.
Fig. 2 is a selector valve of the present utility model and the schematic representation that cooperates of hydraulic oil circulating filtration mechanism.
Embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the claimant general elaborates in embodiment's mode below, but to embodiment's description all is not restriction to the utility model scheme, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.
Ask for an interview Fig. 1, in Fig. 1, provided the integrally-built configuration scenario of known lead hydraulic pressure press-connection machine, on a dolly that has a roller, set power 6, the power 6 preferred petrol engine that adopt, side at power 6 is equipped with fuel tank 1, oil pump 3 is set in fuel tank 1, oil pump 3 orders about its work by power 6, promptly make oil pump 3 work (pump oil) by power 6, set firmly selector valve 2 on the oil cap 11 of fuel tank 1, a pair of oil pipe on the selector valve 2 passes in and out oily interface 25 and passes in and out oily interface 71 by a pair of hydraulic oil pipe 251 and a pair of hydraulic tongs on the hydraulic tongs 7 and be connected.
Ask for an interview Fig. 2 and continuation in conjunction with Fig. 1, selector valve 2 shown in Figure 1 has high pressure oil draining hole 21, gear shift spill port 22, neutral gear spill port 23 and selector valve oil inlet hole 24, and selector valve oil inlet hole 24 is connected with oil pump 3 by oil inlet pipe 241 (Fig. 1 shows).In the prior art, high pressure oil draining hole 21, gear shift spill port 22 and neutral gear spill port 23 directly communicate with fuel tank, and as the technological scheme that the utility model provides high pressure oil draining hole 21, gear shift spill port 22 and neutral gear spill port 23 are communicated with fuel tank 1 indirectly, so-called indirect notion is just to enter fuel tank 1 after filtering by the hydraulic oil circulating filtration mechanism that the utility model scheme provides.
Emphasis is seen Fig. 2, the hydraulic oil circulating filtration mechanism that the utility model provides preferably but not the structure that definitely is limited to is as follows: comprise an oil return seat 4 and a filter 5, oil return seat 4 is taken filter 5 and is fixed with the bottom of selector valve 2, and be positioned at fuel tank 1 (Fig. 1 shows), this oil return seat 4 has an oil back chamber 41, promptly with on the matched wall body of selector valve 2 offering first on the roof of oil back chamber 41, second oilhole 411, the 412 and the 3rd oilhole 413, first oilhole 411 and aforesaid high pressure oil draining hole 21 are corresponding and communicate, more properly say, overlap with high pressure oil draining hole 21, second oilhole 412 and gear shift spill port 22 corresponding and communicate (both overlap), the 3rd oilhole 413 and neutral gear spill port 23 corresponding and communicate (being that both overlap).So the hydraulic oil that comes from high pressure oil draining hole 21, gear shift spill port 22 and the neutral gear spill port 23 all enters in the oil back chamber 41 of oil return seat 4.The bottom that in the bottom of oil return seat 4 is oil back chamber 41 offers the oil back chamber oil outlet 42 that an inwall has internal thread 421, and aforesaid filter 5 removably is fixed on the oil back chamber oil outlet 421.
Continue and ask for an interview Fig. 2, the structure of preferred filter 5 is as follows: cover 51, filter ruffle 52 and connecting head 53 in comprising, the spaced apart draining hole 511 that is provided with on the wall body of interior cover 51, the filter ruffle 52 preferred double-layer stainless steel filter ruffles that adopt, the order number of the internal layer of this double-layer stainless steel filter ruffle is 100 orders, and outer field order number is 60 orders, because cover 51 has supporting effect in aforesaid for filter ruffle 52, therefore filter ruffle 52 is nested with outside interior cover 51, one end of filter ruffle 52 is closed by first filter ruffle lid, 521 lids, and the other end is by 522 sealings of second filter ruffle lid.One end of connecting head 53 and first filter ruffle lid 521 are fixing, and communicate with the cavity volume of interior cover 51, and the other end of connecting head 53 is processed with outside thread 531, and this outside thread 531 spins with internal thread 421 screw threads of aforesaid oil back chamber oil outlet 42 and cooperates.
When lead hydraulic pressure press-connection machine is in running order, the hydraulic oil that comes from aforesaid high pressure oil draining hole 21 (above the hydraulic oil behind the pressure of setting), gear shift spill port 22 and neutral gear spill port 23 enters the oil back chamber 41 of oil return seat 4 respectively through first, second, third oilhole 411,412,413, and then enter the interior cover 51 of filter 5 through connecting head 53 by oil back chamber oil outlet 42, release by the draining hole 511 on the interior cover 51, and enter fuel tank 1 through filter ruffle 52 filtrations.In said process, the foreign material that are mingled in the hydraulic oil can make the hydraulic oil in the fuel tank 1 remain in clean state in long time by filter 5 effective filterings, and the oil changing interval in the fuel tank 1 can reach half a year.Therefore the utility model scheme has the claimant at the technique effect described in the above-mentioned technique effect hurdle.
Claims (5)
1. the hydraulic oil circulating filtration mechanism of a lead hydraulic pressure press-connection machine, comprise that described lead hydraulic pressure press-connection machine includes a selector valve (2) and the oil pump (3) on the fuel tank cap (11) that a fuel tank (1) and is installed in fuel tank (1), selector valve (2) has high pressure oil draining hole (21), gear shift spill port (22), neutral gear spill port (23) and selector valve oil inlet hole (24), wherein; High pressure oil draining hole (21), gear shift spill port (22) and neutral gear spill port (23) all communicate with described fuel tank (1), and selector valve oil inlet hole (24) is connected with described oil pump (3), oil pump (3) is located in the fuel tank (1), it is characterized in that: described hydraulic oil circulating filtration mechanism comprises an oil return seat (4) and a filter (5), oil return seat (4) is fixed with the bottom of described selector valve (2), and be positioned at described fuel tank (1), this oil return seat (4) has an oil back chamber (41), this oil back chamber (41) and described high pressure oil draining hole (21), gear shift spill port (22) and neutral gear spill port (23) communicate, and offer an oil back chamber oil outlet (42) in the bottom of oil return seat (4), filter (5) and oil back chamber oil outlet (42) are fixing, and the hydraulic oil that comes from oil back chamber oil outlet (42) enters fuel tank (1) after through filter (5).
2. the hydraulic oil circulating filtration mechanism of lead hydraulic pressure press-connection machine according to claim 1, it is characterized in that offering first, second spill port (411,412) and the 3rd spill port (413) on the roof of oil back chamber (41) of described oil return seat (4), wherein: first spill port (411) is corresponding with described high pressure oil draining hole (21) and communicate, second spill port (412) is corresponding with described gear shift spill port (22) and communicate, and the 3rd spill port (413) is corresponding with described neutral gear spill port (23) and communicate.
3. the hydraulic oil circulating filtration mechanism of lead hydraulic pressure press-connection machine according to claim 1, it is characterized in that described filter (5) comprises interior cover (51), filter ruffle (52) and connecting head (53), go up the spaced apart draining hole (511) that is provided with at interior cover (51), filter ruffle (52) is nested with outside interior cover (51), one end covers (521) cap seal by first filter ruffle, the other end covers (522) cap seal by second filter ruffle, one end of connecting head (53) and first filter ruffle cover (521) and fix and communicate with the cavity volume of interior cover (51), and the other end of connecting head (53) and described oil back chamber oil outlet (42) are fixing.
4. the hydraulic oil circulating filtration mechanism of lead hydraulic pressure press-connection machine according to claim 1 is characterized in that described filter ruffle (52) is the double-layer stainless steel filter ruffle.
5. according to the hydraulic oil circulating filtration mechanism of the described lead hydraulic pressure of claim 3 press-connection machine, the inwall that it is characterized in that described oil back chamber oil outlet (42) is provided with internal thread (421), and the outer wall of described connecting head (53) is provided with outside thread (531), and internal and external screw thread (421,531) is fitted to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206524239U CN201884373U (en) | 2010-12-10 | 2010-12-10 | Hydraulic oil circulation filtering mechanism of conducting wire hydraulic press-connection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206524239U CN201884373U (en) | 2010-12-10 | 2010-12-10 | Hydraulic oil circulation filtering mechanism of conducting wire hydraulic press-connection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884373U true CN201884373U (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206524239U Expired - Fee Related CN201884373U (en) | 2010-12-10 | 2010-12-10 | Hydraulic oil circulation filtering mechanism of conducting wire hydraulic press-connection machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN201884373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011768A (en) * | 2010-12-10 | 2011-04-13 | 常熟市常福电力机具有限公司 | Hydraulic oil circulating filtration mechanism of wire hydraulic crimping machine |
-
2010
- 2010-12-10 CN CN2010206524239U patent/CN201884373U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011768A (en) * | 2010-12-10 | 2011-04-13 | 常熟市常福电力机具有限公司 | Hydraulic oil circulating filtration mechanism of wire hydraulic crimping machine |
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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: 20110629 Termination date: 20141210 |
|
| EXPY | Termination of patent right or utility model |