SU609901A1 - Mine hydraulic prop - Google Patents
Mine hydraulic propInfo
- Publication number
- SU609901A1 SU609901A1 SU762371975A SU2371975A SU609901A1 SU 609901 A1 SU609901 A1 SU 609901A1 SU 762371975 A SU762371975 A SU 762371975A SU 2371975 A SU2371975 A SU 2371975A SU 609901 A1 SU609901 A1 SU 609901A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- plunger
- cavity
- rod
- rack
- piston
- Prior art date
Links
Landscapes
- Actuator (AREA)
- Mechanically-Actuated Valves (AREA)
Description
1one
Изобретение относитс к угольному машиностроению .This invention relates to coal engineering.
Известно устройство дл гидравлического управлени настройкой предохранительного клапана, включающее запорный Эрган, настроечную пружину и корпус, при этом в клапана имеетс поршень настройки пружины, св занный с запорным органом, |ljОднако это устройство не может быть применено в рудничных стойках и имеетA device for hydraulic control of a safety valve is known, which includes an Ergan shut-off valve, a tuning spring and a housing, while the valve has a spring adjusting piston associated with the locking member, | lj However, this device cannot be used in mine racks and has
сложную конструкцию.complex structure.
Известна гидравлическа стойка, включающа наружный цилиндр и клапанное устройство с дифференциальным плунжером, камера котфого св зана с рабочей полостью стойки через канал в запирающем элементе 2.A hydraulic strut is known, which includes an outer cylinder and a valve device with a differential plunger, and the chamber is connected to the working cavity of the strut through a channel in the locking element 2.
Недостатком этой стойки вл етс сло ность ее конструкции И недостаточна The disadvantage of this rack is the complexity of its design and the insufficient
грузоподъемность.load capacity.
Наиболее близким техническим решением к предлагаемому вл етс руднична гидравлическа стойка, содержаща цилиндр, поршень со штоком, предохранительный клапан The closest technical solution to the present invention is a mine hydraulic strut, comprising a cylinder, a piston with a rod, a safety valve
с подклапанной камерой и средство дл соединени поршневых полостей стойки f3J.with a valve chamber and means for connecting the piston cavities of the f3J pillar.
Недостатками этой стойки нш етс сложность конструкции иэ-за большого количества посадочных сопр гаемых поверхностей во второй ступени и ограниченна грузоподъемность .The disadvantages of this rack are the complexity of the design and the large number of seating mating surfaces in the second stage and the limited carrying capacity.
Цель изобретени - повьшдение грузоподъемности второй ступени и упрощение конструкции,The purpose of the invention is to increase the load capacity of the second stage and simplify the design,
Поставленна цель достигаетс тем, что средство ДЛЯ соединени поршневь х попоотей стойки выполнено в виде дифференциального плунжера, штокова полость которого соединена со штоковой полостью стойки, а поршнева полость - с подклапанной камерой .The goal is achieved by the fact that the means for connecting the piston and the post stand are designed as a differential plunger, the rod cavity of which is connected to the rod end of the rack, and the piston cavity is connected to the sub-valve chamber.
На фиг. 1 изображена предлагаема стойка , продютьный разрез; на фиг. 2 - узел I фиг. 1.FIG. 1 depicts the proposed rack, produty incision; in fig. 2 — node I of FIG. one.
Claims (3)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762371975D SU1198218A1 (en) | 1976-06-10 | 1976-06-10 | Hydraulic prop |
SU762371975A SU609901A1 (en) | 1976-06-10 | 1976-06-10 | Mine hydraulic prop |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762371975A SU609901A1 (en) | 1976-06-10 | 1976-06-10 | Mine hydraulic prop |
Publications (1)
Publication Number | Publication Date |
---|---|
SU609901A1 true SU609901A1 (en) | 1978-06-05 |
Family
ID=20665435
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU762371975D SU1198218A1 (en) | 1976-06-10 | 1976-06-10 | Hydraulic prop |
SU762371975A SU609901A1 (en) | 1976-06-10 | 1976-06-10 | Mine hydraulic prop |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU762371975D SU1198218A1 (en) | 1976-06-10 | 1976-06-10 | Hydraulic prop |
Country Status (1)
Country | Link |
---|---|
SU (2) | SU1198218A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU191483U1 (en) * | 2019-04-29 | 2019-08-07 | федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский горный университет" | HYDRAULIC FASTENERS WITH ADJUSTABLE RESISTANCE AND ENERGY RECOVERY |
-
1976
- 1976-06-10 SU SU762371975D patent/SU1198218A1/en active
- 1976-06-10 SU SU762371975A patent/SU609901A1/en active
Also Published As
Publication number | Publication date |
---|---|
SU1198218A1 (en) | 1985-12-15 |
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