• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The apparatus is provided with a piston-and-cylinder unit which carries a flange for abutting under the bearing cap as well as a pre-loading press which is mounted on an arm which extends radially from the piston-and-cylinder unit. The arm is movable together with the piston-and-cylinder unit so as to be positioned below the bolts which secure the bearing cap in place. The arm has a guide device mounted at the end which permits axial and rotating movements of the pre-loading press and is surrounded by a spring by which the press is carried.
    公开号:SU743568A3
    申请号:SU772558103
    申请日:1977-12-26
    公开日:1980-06-25
    发明作者:Фер Гейнц
    申请人:Гебрюдер Зульцер Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to mechanical assembly works, in particular the assembly and disassembly of a component assembly, for example, a crankshaft bearing cap of an engine. A device for mounting and dismounting an assembly of parts connected by screw-type threaded pairs is known, comprising a support for the assembly and a mechanism for preloading the screws in the form of two matching and movable One relative to another parts of the body with a power hydraulic chamber between them, one of The case is threaded with OJ screws. However, the known device does not provide assembly and disassembly of units such as a bearing cap of a crankshaft of the engine and cannot be used continuously. In addition, the device cannot remain in the case of the internal combustion engine also during the operation of the latter. The aim of the invention is to ensure the assembly and disassembly of assemblies such as the crankshaft bearing cap of an engine. This is achieved by having a device for mounting and dismounting a assembly of parts connected by screw-nut threaded pairs, containing a support for the assembly and a mechanism for preloading screws in the form of two fittings and moving one relative to another of the housing parts q with a power hydraulic chamber between them at that, one of the parts of the body is threaded for screws, provided with a guide device for the pre-tensioning mechanism, made in the form of a bracket connected to a support that is installed with vratnopostupatelnogo movement and a positioned at the other end of the trunnion bracket, with one of the parts of the prior voltage tensioning mechanism housing is mounted on a pin pivotable relative to the bracket and is spring-loaded relative to the carrier for axial movement. FIG. 1 shows a device mounted on a dismountable assembly of parts, a general view; in fig. 2 knot for connecting the pre-tensioning mechanism with the Kpoltein pin.
    The device has a support in the form of a flange 1 for a dismountable knot 2 of the bearing 3 of a crankshaft of a 4-engine. The flange is rigidly connected to the internal rod 5, which is mounted telescopically in the rods b and 7 of the power cylinder 8, which is located on the bath 9 and has a nozzle 10 for supplying the working medium.
    The casing 11 is placed concentric with the axis of the rod 5 and through the ring 12 mounted on the flange 1 of the support. The ring has a radial hole 13, coaxially with the hole 14 in the flange 1. Pin 15 is installed in the holes 13 and 14 and connects the casing 11 to the inner rod 5.
    At the lower end of the casing 11, a fixture in the form of a bracket 16 with a trunnion 17 fixed to its end is fixed to the cadet.
    The pre-tensioning mechanism 18 of the screws 19 of the bearing cap 2 consists of two mating annular parts 20 and 21 of the core-21. Pusa with a power hydraulic chamber 21.
    One part 20 of the mechanism housing is mounted on the trunnion 17 through a step washer 23 rotatably with respect to the bracket 16 and axially moving. spring 24 relative to kinggytein 16.
    Part 20 of the housing mechanism 18 has an axial internal thread for the thread of the screws 19 of the cover 2.
    The device works when removing the cover 2 as follows.
    At first, the device is brought into the working position under the bearing neck of the crankshaft 4, the pistons 5-7 being in the retracted state, i.e. the casing 11 and the brackets 16 with the pre-tensioning mechanism 1B on them occupy the lowest initial position. The connecting pin 15 is inserted into both holes 13 and 14 so that the casing 11 is connected to the inner rod 5. The rods are loaded with pressure oil so that they slide out one by one and the inner rod 5 brings the flange 1 in contact with the bearing cap 2.
    The connecting pin 15 of the housing 11 with the bracket 16 and the pre-tensioning mechanism 18 are raised so that the rods 5-7 are telescopically extended, and the pre-tensioning mechanism is installed coaxially with the screw 19. The preload tensioning mechanism housing part 20 is screwed onto the fastening screw 18 to as long as part 21 of the hull of its upper tootz
    the surface is not in contact with the roofs of the bearing 5.
    By means of the pipeline 25. the pre-tensioning mechanism 17 is loaded with oil under pressure, with the body part 20 slightly moving away from part 21 so that the fastening screw 19 is elastically stretched. By means of the pin 26, the nut 27 is screwed to such a position that after the oil stops the preload tension mechanism 18, it no longer touches the bearing cap 2.
    The pre-tensioning mechanism 18 is then removed from the fastening screw 19 so that it rests on the bracket 16. The discharge oil load on the rods 5-7 is removed, they are lowered into the lower position, and the bearing cover 2 is lowered until it stops the loosened nuts 27. The connecting pin 14 is removed and the rods 5-7 are again loaded with pressurized oil and shifted one into another, while the bracket 16 together with the mechanism 18 is lowered, the cover 2, resting on the flange 1, is also lowered. rests on flan 1, the nut 27 is completely unscrewed from the fastening screw 19.
    After removing the nut 27, the rods 5-7 are telescopically lowered to their original position and the bearing cap 2 is lowered, making it possible to replace the bearing shell 3. After replacing the bearing shell, the cover 2 is reassembled, which occurs in reverse order.
    If the device has one bracket 16 with one pre-tensioning mechanism 18, the bracket must rotate from one mounting screw 195 to another.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    A device for assembling and disassembling an assembly of parts connected by screw-nut threaded pairs, containing a support for the assembly and a mechanism for pre-tensioning the screws in the form of two mating parts moving one relative to another of the housing with a power hydraulic chamber between them, one of the parts The housing is threaded for screws, characterized in that, in order to ensure the assembly and disassembly of components such as the bearing cap of the engine crankshaft, it is provided with a guide device for the mechanism on tension, made in the form of a bracket connected to a support installed with the possibility of reciprocating movement, and in the form of a trunnion located on the other end, with one of the parts of the body of the pretension mechanism mounted on the axle rotatably relative to the matte t spring-loaded relative to the bracket for axial movement. Sources of information taken into account during the examination 1. N. Sinev. and Udvichenko P., M. Hermetic; water pumps of atomic power plants, Moscow, 1.967, p. 128-131, fig. 4.8.
    类似技术:
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    同族专利:
    公开号 | 公开日
    IT1088372B|1985-06-10|
    FR2375950A1|1978-07-28|
    NL7713858A|1978-07-04|
    JPS5637446B2|1981-08-31|
    US4145799A|1979-03-27|
    CH613145A5|1979-09-14|
    JPS5385215A|1978-07-27|
    FI63998C|1983-09-12|
    NO141278B|1979-10-29|
    GB1561326A|1980-02-20|
    SE432639B|1984-04-09|
    FI63998B|1983-05-31|
    FI773777A|1978-07-01|
    NO774472L|1978-07-03|
    NO141278C|1980-02-06|
    FR2375950B1|1981-01-09|
    SE7713709L|1978-07-01|
    DK564377A|1978-07-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE920338C|1953-04-26|1954-11-18|Kieserling & Albrecht|Screw head for socket screwing machines|
    US3099075A|1959-12-23|1963-07-30|Babcock & Wilcox Co|Power operated stud tensioner|
    FR1296764A|1961-05-29|1962-06-22|Diamond Power Speciality|Improvements to stud extractors|
    FR2071195A5|1969-12-19|1971-09-17|Rks Pasquier|
    CH552448A|1971-03-26|1974-08-15|Bieri Hans|HYDRAULIC CLAMPING TOOL FOR CREATING PRE-TENSIONED SCREW CONNECTIONS.|
    DE2161093C2|1971-12-09|1981-12-17|Schmidt, Kranz & Co Gmbh, Zweigniederlassung Maschinenbau, 3421 Zorge|Hydraulic pre-tensioning device for stud bolts|
    CH585659A5|1973-11-09|1977-03-15|Semt|
    DE2453026A1|1974-11-08|1976-05-13|Maschf Augsburg Nuernberg Ag|DEVICE FOR CLAMPING AND RELEASING BOLT-NUT CONNECTIONS|
    US3916499A|1975-01-09|1975-11-04|Chambersburg Eng Co|Hydraulic bearing mounting press|CN101811249B|2009-07-28|2013-09-04|哈尔滨轨道交通装备有限责任公司|Bearing dismounting device|
    CN103921234A|2013-09-18|2014-07-16|芜湖莫森泰克汽车科技有限公司|Pneumatic rotary clamping device for sunroof windshield mounting station tooling|
    CN103737290A|2013-12-20|2014-04-23|唐山市德龙钢铁有限公司|Device for dismounting small-end oil film bearing of roll box of Morgan fifth-generation high-speed wire rod mill|
    US10265815B2|2016-08-17|2019-04-23|Toyota Motor Engineering & Manufacturing North America, Inc.|Engine block bearing cap removal mechanism|
    CN108284410B|2018-01-25|2020-01-24|深圳市日野精密科技有限公司|Positioning auxiliary device for mounting shaft sleeve and shaft body|
    FR3107462B1|2020-02-26|2022-02-25|Edf Production Electrique Insulaire Sas|Device and method for dismantling a bearing of an internal combustion heat engine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH1646176A|CH613145A5|1976-12-30|1976-12-30|
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