臺(tái)灣ROSICO液壓泵PV2R2-26/33/41/53/59/65/75-F雙聯(lián)葉片泵PV2R12

淺談液壓系統(tǒng)中液壓閥的密封性能

對于液壓系統(tǒng)來說，液壓閥的好壞，直接影響著系統(tǒng)在正常運(yùn)轉(zhuǎn)中的效率問題。一般的液壓閥的壽命也就3-6個(gè)月的樣子，國外解決的途徑和辦法是增加系統(tǒng)的過濾精度和提高乳化液的質(zhì)量，但收效不大。那么影響液壓閥密封性能的主要因素有哪些呢？
影響液壓閥密封性能的主要因素——環(huán)境因素
液壓支架用閥，工作環(huán)境十分惡劣。在采煤工作面，油管總長1000多米，接頭插口多達(dá)4000多個(gè)，液箱無特殊的防塵設(shè)施。乳化液中有大量的漂浮雜質(zhì)，在立柱缸底和閥腔，留有較多的煤粉、巖粒和鐵屑。進(jìn)液閥芯和閥座，由于開啓關(guān)閉比較頻繁，液體流速高，密封很快就會(huì)失效。實(shí)踐證明減少支架液壓系統(tǒng)液體的污染雜質(zhì)，是十分困難的，有人曾經(jīng)設(shè)想在乳化液泵站采用高壓過濾器，同時(shí)在每臺(tái)支架進(jìn)口處增加小型過濾器。但在工作中很快被堵塞，形成斷流。

密封元件損壞的主要因素是工作液中的雜質(zhì)。這些雜質(zhì)在密封元件間研磨，使閥産生洩漏。因此，國外曾提出相應(yīng)等級(jí)的液壓元件，應(yīng)采用相應(yīng)精度的過濾器。他們認(rèn)爲(wèi)5um的油泵密封元件，如果采用過濾精度爲(wèi)3／um的過濾器，壽命可比采用10um的提高10倍。
液壓閥密封效果分析
閥芯和閥座接觸面的洩漏，是工作液體分子擠入的結(jié)果。影響密封效果的主要原因是閥芯和閥座的接觸比壓、不平度及壓差。當(dāng)閥芯與閥座的接合面以P力壓緊，工作液體分子以F力擠入，密封材料會(huì)産生彈性變形。如果密封副總抗力大于分子斥力，則密封有效，否則就會(huì)形成洩漏。

柱塞泵：
P08-A0-F-R-01 P08-A1-F-R-01 P08-A2-F-R-01 P08-A3-F-R-01 P16-A0-F-R-01 P16-A1-F-R-01
P16-A2-F-R-01 P16-A3-F-R-01 P22-A0-F-R-01 P22-A1-F-R-01 P22-A2-F-R-01 P22-A3-F-R-01
P36-A0-F-R-01 P36-A1-F-R-01 P36-A2-F-R-01 P36-A3-F-R-01 P46-A0-F-R-01 P46-A1-F-R-01
P46-A2-F-R-01 P46-A3-F-R-01 P70-A4-F-R-01 P46-C2-D3-F-R P16-D3-FR-01  P46-A0/A1/A2/A3-F-R-01
定量葉片泵：
150T-48-FR 150T-61-FR 150T-75-FR 150T-94-FR 150T-116-FR 150T-125-FR 150T+150T
50T-07-FR 50T-12-FR 50T-14-FR 50T-17-FR 50T-19-FR 50T-20-FR 50T-23-FR 50T-25-FR
50T-26-FR 50T-28-FR 50T-30-FR 50T-36FR 50T-39-FR 50T-40-FR 
高壓葉片泵：
HVP-20-FA3 HVP-30-FA3 HVP-40-FA3 HVP-5440F-A3 HVP-0808F-A3 HVP-1212F-A3 HVP-1515F-A3
HVP-2020F-A3 HVP-3030F-A3 HVP-4040F-A3

PV2R1系列
PV2R1-10-F-RAA-41 PV2R1-10-F-RAB-41 PV2R1-10-F-RAL-41 PV2R1-10-F-RAR-41 PV2R1-10-L-RAA-41
PV2R1-10-L-RAB-41 PV2R1-10-L-RAL-41 PV2R1-10-L-RAR-41 PV2R1-12-F-RAA-41 PV2R1-12-F-RAB-41
PV2R1-12-F-RAL-41 PV2R1-12-F-RAR-41 PV2R1-12-L-RAA-41 PV2R1-12-L-RAB-41 PV2R1-12-L-RAL-41
PV2R1-12-L-RAR-41 PV2R1-14-F-RAA-41 PV2R1-14-F-RAB-41 PV2R1-17-F-RAA-41 PV2R1-19-F-RAA-41
PV2R1-31-F-RAA41 PV2R1-6-F-RAA-41 PV2R1-25-F-RAA-41
PV2R2系列：
PV2R2-26-F-RAA-41 PV2R2-26-F-RAB-41 PV2R2-26-F-RAL-41 PV2R2-26-F-RAR-41 PV2R2-26-L-RAA-41
PV2R2-26-L-RAB-41 PV2R2-26-L-RAL-41 PV2R2-26-L-RAR-41 PV2R2-33-F-RAA-41 PV2R2-33-F-RAB-41
PV2R2-33-F-RAL-41 PV2R2-33-F-RAR-41 PV2R2-33-L-RAA-41 PV2R2-33-L-RAB-41 PV2R2-33-L-RAL-41
PV2R2-33-L-RAR-41 PV2R2-41-F-RAA-41 PV2R2-41-F-RAB-41 PV2R2-41-F-RAL-41 PV2R2-41-F-RAR-41
PV2R2-41-L-RAA-41 PV2R2-41-L-RAB-41 PV2R2-41-L-RAL-41 PV2R2-41-L-RAR-41  PV2R2-47-F-RAA-41
PV2R2-47-F-RAB-41 PV2R2-47-F-RAL-41 PV2R2-47-F-RAR-41 PV2R2-47-L-RAA-41 PV2R2-47-L-RAB-41
PV2R2-47-L-RAL-41 PV2R2-47-L-RAR-41  PV2R2-53-F-RAA-41 PV2R2-53-F-RAB-41 PV2R2-53-F-RAL-41
PV2R2-53-F-RAR-41 PV2R2-53-L-RAA-41 PV2R2-53-L-RAB-41 PV2R2-53-L-RAL-41 PV2R2-53-L-RAR-41
PV2R2-59-F-RAA-41 PV2R2-59-F-RAB-41 PV2R2-65-F-RAA-41
PV2R3系列：
PV2R3-136-F-RAA-31  PV2R3-66-L-RAA-31 PV2R3-66-L-RAB-31 PV2R3-66-L-RAL-31 PV2R3-66-L-RAR-31
PV2R3-76-F-RAA-31 PV2R3-76-F-RAB-31 PV2R3-76-F-RAL-31 PV2R3-76-F-RAR-31 PV2R3-76-L-RAA-31
PV2R3-76-L-RAB-31 PV2R3-76-L-RAL-31 PV2R3-76-L-RAR-31 PV2R3-85-F-RAA-31 PV2R3-85-F-RAB-31
PV2R3-85-F-RAL-31 PV2R3-85-F-RAR-31 PV2R3-85-L-RAA-31 PV2R3-85-L-RAB-31 PV2R3-85-L-RAL-31
PV2R3-85-L-RAR-31 PV2R3-94-F-RAA-31 PV2R3-94-F-RAB-31 PV2R3-94-F-RAL-31 PV2R3-94-F-RAR-31
PV2R3-94-L-RAA-31 PV2R3-94-L-RAB-31 PV2R3-94-L-RAL-31 PV2R3-94-L-RAR-31
PV2R4系列：
PV2R4-136-F-RAA-30 PV2R4-153F-RAA-30 PV2R4-184F-RAA-30 PV2R4-200F-RAA-30 PV2R4-237F-RAA-30
PV2R4A-138-FRAA-10 PV2R4A-162-FRAA-10 PV2R4A-193-FRAA-10
PV2R11系列：
PV2R11-19/19F PV2R11-4-23-F-R-A PV2R11-12/12F PV2R11-31/12F1 PV2R11-4/4-F-RAA PV2R11-6/4-F-RAA
PV2R11-6/6-F-RAA PV2R11-8/4-F-RAA PV2R11-8/8-F-RAA PV2R11-10/4-F-RAA PV2R11-10/6-F-RAA
PV2R11-10/8-F-RAA PV2R11-10/10-F-RAA PV2R11-12/4-F-RAA PV2R11-12/6-F-RAA PV2R11-12/10-F-RAA
PV2R11-12/12-F-RAA PV2R11-16/6-F-RAA PV2R11-16/10-F-RAA PV2R11-20/6-F-RAA PV2R11-20/10-F-RAA
PV2R11-23/10-F-RAA
PV2R12系列：
PV2R12-10-26-F-REAA-41 PV2R12-10-26-L-REAA-41 PV2R12-10-33-F-REAA-41 PV2R12-10-33-L-REAA-41
PV2R12-10-41-F-REAA-41 PV2R12-10-41-L-REAA-41 PV2R12-10-47-F-REAA-41 PV2R12-10-47-L-REAA-41
PV2R12-10-53-F-REAA-41 PV2R12-10-53-L-REAA-41 PV2R12-10-59-F-REAA-41 PV2R12-10-59-L-REAA-41
PV2R12-10-65-F-REAA-41 PV2R12-10-65-L-REAA-41 PV2R12-12-26-F-REAA-41 PV2R12-12-26-L-REAA-41
PV2R12-12-33-F-REAA-41 PV2R12-12-33-L-REAA-41 PV2R12-12-41-F-REAA-41 PV2R12-12-41-L-REAA-41
PV2R12-12-47-F-REAA-41 PV2R12-12-47-L-REAA-41 PV2R12-12-53-F-REAA-41 PV2R12-12-53-L-REAA-41
PV2R12-12-59-L-REAA-41 PV2R12-12-65-L-REAA-41 PV2R12-14-26-L-REAA-41 PV2R12-14-33-L-REAA-41
PV2R12-14-41-L-REAA-41 PV2R12-14-47-L-REAA-41 PV2R12-14-53-L-REAA-41 PV2R12-14-59-L-REAA-41
PV2R12-14-65-L-REAA-41 PV2R12-17-26-L-REAA-41 PV2R12-17-33-L-REAA-41 PV2R12-17-41-L-REAA-41
PV2R12-17-47-L-REAA-41 PV2R12-17-53-L-REAA-41 PV2R12-17-59-L-REAA-41 PV2R12-17-65-L-REAA-41
PV2R12-19-26-L-REAA-41 PV2R12-19-33-L-REAA-41 PV2R12-19-41-L-REAA-41 PV2R12-19-47-L-REAA-41
PV2R12-19-53-L-REAA-41 PV2R12-25-47-F-REAA-41 PV2R12-25-53-F-REAA-41 PV2R12-25-59-F-REAA-41
PV2R12-25-65-F-REAA-41 PV2R12-31-26-F-REAA-41 PV2R12-31-33-F-REAA-41 PV2R12-31-41-F-REAA-41
PV2R12-31-47-F-REAA-41 PV2R12-31-53-F-REAA-41 PV2R12-31-59-F-REAA-41 PV2R12-31-65-F-REAA-41
PV2R12-6-26-F-REAA-41 PV2R12-6-26-L-REAA-41 PV2R12-6-33-F-REAA-41 PV2R12-6-33-L-REAA-41
PV2R12-6-41-F-REAA-41 PV2R12-6-41-L-REAA-41 PV2R12-6-47-F-REAA-41 PV2R12-6-47-L-REAA-41
PV2R12-6-53-F-REAA-41 PV2R12-6-53-L-REAA-41 PV2R12-6-59-F-REAA-41 PV2R12-6-59-L-REAA-41
PV2R12-6-65-F-REAA-41 PV2R12-6-65-L-REAA-41 PV2R12-8-26-F-REAA-41 PV2R12-8-26-L-REAA-41
PV2R12-8-33-F-REAA-41 PV2R12-8-33-L-REAA-41 PV2R12-8-41-F-REAA-41 PV2R12-8-41-L-REAA-41
PV2R12-8-47-F-REAA-41 PV2R12-8-47-L-REAA-41 PV2R12-8-53-F-REAA-41 PV2R12-8-53-L-REAA-41
PV2R12-8-59-F-REAA-41 PV2R12-8-59-L-REAA-41 PV2R12-8-65-F-REAA-41 PV2R12-8-65-L-REAA-41
PV2R13系列：
PV2R13-31/94-F-R
PV2R21系列：
PV2R21-53/31RAFF1 PV2R21-33/19 PV2R21-75/31RAFF1 PV2R21-33/30FR PV2R21-41/17-FR PV2R21-41/19-FR
PV2R23系列
PV2R23-75-153-F-RAAA-41 PV2R23-75-200-F-RAAA-41 PV2R23-41/116-F-R PV2R23-65-94-L-REAA-41
PV2R23-65/94-F-R PV2R23/116-53-F-R
PV2R24系列：
PV2R24-26-136-F-RAAA-41 PV2R24-26-153-F-RAAA-41 PV2R24-26-184-F-RAAA-41 PV2R24-26-200-F-RAAA-41
PV2R24-26-237-F-RAAA-41 PV2R24-33-136-F-RAAA-41 PV2R24-33-153-F-RAAA-41 PV2R24-33-184-F-RAAA-41
PV2R24-33-200-F-RAAA-41 PV2R24-33-237-F-RAAA-41 PV2R24-41-136-F-RAAA-41 PV2R24-41-153-F-RAAA-41
PV2R24-41-153-F-REAA-40 PV2R24-41-184-F-RAAA-41 PV2R24-41-184-F-REAA-40 PV2R24-41-200-F-RAAA-41
PV2R24-41-200-F-REAA-40 PV2R24-41-237-F-RAAA-41 PV2R24-41-237-F-REAA-40 PV2R24-47-136-F-RAAA-41
PV2R24-47-136-F-REAA-40 PV2R24-47-153-F-RAAA-41 PV2R24-47-153-F-REAA-40 PV2R24-47-184-F-RAAA-41
PV2R24-47-184-F-REAA-40 PV2R24-47-200-F-RAAA-41 PV2R24-47-200-F-REAA-40 PV2R24-47-237-F-RAAA-41
PV2R24-47-237-F-REAA-40 PV2R24-53-136-F-RAAA-41 PV2R24-53-136-F-REAA-40 PV2R24-53-153-F-RAAA-41
PV2R24-53-153-F-REAA-40 PV2R24-53-184-F-RAAA-41 PV2R24-53-184-F-REAA-40 PV2R24-53-200-F-RAAA-41
PV2R24-53-200-F-REAA-40 PV2R24-53-237-F-RAAA-41 PV2R24-53-237-F-REAA-40 PV2R24-59-136-F-RAAA-41
PV2R24-59-136-F-REAA-40 PV2R24-59-153-F-RAAA-41 PV2R24-59-153-F-REAA-40 PV2R24-59-184-F-RAAA-41
PV2R24-59-184-F-REAA-40 PV2R24-59-200-F-RAAA-41 PV2R24-59-200-F-REAA-40 PV2R24-59-237-F-RAAA-41
PV2R24-59-237-F-REAA-40 PV2R24-65-136-F-RAAA-41 PV2R24-65-136-F-REAA-40 PV2R24-65-153-F-RAAA-41
PV2R24-65-153-F-REAA-40 PV2R24-65-184-F-RAAA-41 PV2R24-65-184-F-REAA-40 PV2R24-65-200-F-RAAA-41
PV2R24-65-200-F-REAA-40 PV2R24-65-237-F-REAA-40 PV2R24-75-136-F-RAAA-41 PV2R24A-41-FRAAA-10
PV2R34A-76-FRAAA-10
PV2R32系列：
PV2R32-52/26-F-R PV2R32-60/33-F-R PV2R32-66/41-F-R PV2R32-76/47-F-R PV2R32-94/53-F-R
PV2R32-116/59-F-R PV2R32-125/65-F-R PV2R32-136/70-F-R 

油泵電機(jī)：
0.75KW+VP20 0.75KW+VP15
1.5KW+VP20 1.5KW+VP15 1.5KW+VP30 1.5KW+VP40 1.5KW+VP12
2.2KW+VP30 2.2KW+VP40 2.2KW+VP20
3KW+VP30 3KW+VP40
3.75KW+VP30 3.75KW+VP40 3.75KW+VP45
4KW+VP40 4KW+VP30 4KW+VP45
5.5KW+HVP30 5.5KW+HVP40
C01-43B0 1HP 0.75KW C02-43B0 2HP 1.5KW C03-43B0 3HP 2.2/2.25KW C05-43B0 5HP 3.75KW
C7B-43B0 7.5HP 5.5/5.6KW C10-43B0 10HP 7.5KW

1HP-0.75KW 配VP20 軸12.7  1HP-0.75KW 配VP20 大軸15.875  1HP-0.75KW 配VP40 軸19.05 
1HP-0.75KW 配PV2R1 軸19.05  1HP-0.75KW 配HGP-2A 軸12.5  2HP-1.5KW 配VP20 軸12.7 
2HP-1.5KW 配VP20 大軸15.875  2HP-1.5KW 配VP40 軸19.05  2HP-1.5KW 配PV2R1 軸19.05  2HP-1.5KW 配HGP-2A 軸12.5 
3HP-2.2KW 配VP20 軸12.7  3HP-2.2KW 配VP20 大軸15.875  3HP-2.2KW 配VP40 軸19.05  3HP-2.2KW 配PV2R1 軸19.05 
3HP-2.2KW 配HGP-2A 軸12.5 
5HP-3.7KW 配VP20 軸12.7  5HP-3.7KW 配HGP-3A 軸15.875  5HP-3.7KW 配VP40 軸19.05  5HP-3.7KW 配PV2R1 軸19.05 
7.5HP-5.5KW 配VP40 軸19.05  7.5HP-5.5KW 配PV2R1 軸19.05 
10HP-7.5KW 配VP40 軸19.05  10HP-7.5KW 配PV2R1 軸19.05