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A platform for research: civil engineering, architecture and urbanism
Middle cylinder body sealing structure of hydraulic breaking hammer
The invention discloses a middle cylinder body sealing structure of a hydraulic breaking hammer. The middle cylinder body inner hole sealing structure sequentially comprises a dustproof sealing ring groove 11, a piston rod sealing ring groove 12, a piston rod sealing ring groove 13, an oil return groove 14 and a piston rod sealing ring groove 15, and the middle cylinder body inner hole sealing structure further comprises a constant-high-pressure groove 19 formed between the groove 15 and a front cavity, wherein the groove 19 communicates with the front cavity through an oil path 20, and high-pressure oil is introduced normally; and a constant-high-pressure groove 17 and a sealing ring groove 18 can also be additionally formed between the sealing ring groove 13 and the oil return groove 14under the condition that the sealing ring groove 15 is not arranged, the constant-high-pressure groove 17 communicates with the front cavity through an oil path 21, and meanwhile, an oil return groove16 is additionally formed between the sealing ring groove 12 and the sealing ring groove 13 for introducing low-pressure return oil. The middle cylinder body sealing structure is suitable for hydraulic breaking hammers of various models, so that a sealing part of the middle cylinder body sealing structure is matched with a sealed surface more tightly, the supporting effect on a piston is enhanced, and meanwhile, the service life of the sealing part can be effectively prolonged.
本发明一种液压破碎锤中缸体密封结构，所述中缸体内孔密封结构依次包括防尘密封圈沟槽11、活塞杆密封圈沟槽12，活塞杆密封圈沟槽13，回油槽14，活塞杆密封圈沟槽15，还包括在沟槽15与前腔之间设置常高压沟槽19，所述沟槽19通过油路20与前腔连通，常通高压油；也可以在不设密封圈沟槽15的情况下，在密封圈沟槽13和回油槽14之间增设常高压沟槽17、密封圈沟槽18，常高压沟槽17通过油路21与前腔连通，同时在所述密封圈沟槽12和13之间增设一道回油沟槽16通低压回油。本发明适用各种型号的液压破碎锤，使中缸体密封结构的密封件与被密封面配合更加紧密，加强对活塞的支撑作用，同时能有效提高密封件的使用寿命。
Middle cylinder body sealing structure of hydraulic breaking hammer
The invention discloses a middle cylinder body sealing structure of a hydraulic breaking hammer. The middle cylinder body inner hole sealing structure sequentially comprises a dustproof sealing ring groove 11, a piston rod sealing ring groove 12, a piston rod sealing ring groove 13, an oil return groove 14 and a piston rod sealing ring groove 15, and the middle cylinder body inner hole sealing structure further comprises a constant-high-pressure groove 19 formed between the groove 15 and a front cavity, wherein the groove 19 communicates with the front cavity through an oil path 20, and high-pressure oil is introduced normally; and a constant-high-pressure groove 17 and a sealing ring groove 18 can also be additionally formed between the sealing ring groove 13 and the oil return groove 14under the condition that the sealing ring groove 15 is not arranged, the constant-high-pressure groove 17 communicates with the front cavity through an oil path 21, and meanwhile, an oil return groove16 is additionally formed between the sealing ring groove 12 and the sealing ring groove 13 for introducing low-pressure return oil. The middle cylinder body sealing structure is suitable for hydraulic breaking hammers of various models, so that a sealing part of the middle cylinder body sealing structure is matched with a sealed surface more tightly, the supporting effect on a piston is enhanced, and meanwhile, the service life of the sealing part can be effectively prolonged.
本发明一种液压破碎锤中缸体密封结构，所述中缸体内孔密封结构依次包括防尘密封圈沟槽11、活塞杆密封圈沟槽12，活塞杆密封圈沟槽13，回油槽14，活塞杆密封圈沟槽15，还包括在沟槽15与前腔之间设置常高压沟槽19，所述沟槽19通过油路20与前腔连通，常通高压油；也可以在不设密封圈沟槽15的情况下，在密封圈沟槽13和回油槽14之间增设常高压沟槽17、密封圈沟槽18，常高压沟槽17通过油路21与前腔连通，同时在所述密封圈沟槽12和13之间增设一道回油沟槽16通低压回油。本发明适用各种型号的液压破碎锤，使中缸体密封结构的密封件与被密封面配合更加紧密，加强对活塞的支撑作用，同时能有效提高密封件的使用寿命。
Middle cylinder body sealing structure of hydraulic breaking hammer
一种液压破碎锤中缸体密封结构
ZHAO PEIYUN (author) / MENG XIANSAN (author)
2020-09-01
Patent
Electronic Resource
Chinese
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