CN210878451U - Disassembly and assembly tool for overhauling large hydraulic dynamometer - Google Patents

Disassembly and assembly tool for overhauling large hydraulic dynamometer Download PDF

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Publication number
CN210878451U
CN210878451U CN201921763455.3U CN201921763455U CN210878451U CN 210878451 U CN210878451 U CN 210878451U CN 201921763455 U CN201921763455 U CN 201921763455U CN 210878451 U CN210878451 U CN 210878451U
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CN
China
Prior art keywords
bearing
hydraulic
flanges
bearing sleeve
hydraulic dynamometer
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Active
Application number
CN201921763455.3U
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Chinese (zh)
Inventor
李万胜
赵洪伟
何玉学
王凯
王国庆
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Dalian Marine Diesel Co ltd
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Dalian Marine Diesel Co ltd
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Priority to CN201921763455.3U priority Critical patent/CN210878451U/en
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Abstract

A disassembly and assembly tool for overhauling a large hydraulic dynamometer is suitable for disassembling and assembling bearing sleeves and bearings of various types of large hydraulic dynamometers in FUCHINO company. The hydraulic dynamometer comprises 2 parallel flanges, rib plates are connected between the 2 large flanges in a circumferential arrangement mode, the 2 large flanges are provided with two rings of connecting holes and 1 central large hole which are arranged in a circumferential arrangement mode according to the corresponding structure of the hydraulic dynamometer, the connecting holes are matched with a screw rod and a nut which are connected with a screw hole of a bearing sleeve or a bearing support, and a jack which is in contact with the bearing sleeve or the bearing support is also matched with the large flange on the inner side. By the aid of the disassembling and assembling tool, smooth disassembling and assembling of a bearing and a bearing sleeve of a large hydraulic dynamometer are achieved, the risk of damage to parts of the hydraulic dynamometer is prevented, working efficiency is improved, and labor intensity and operation risk of maintenance workers are reduced.

Description

Disassembly and assembly tool for overhauling large hydraulic dynamometer
Technical Field
The utility model relates to an use multiple model water dynamometer's maintenance operation in, solve the difficult problem that appears when dismantling and assembly bearing cover and bearing for the atress of spare part is reasonable in the dismantlement and the assembly operation, and it is safe high-efficient, the quality is secure to dismantle and install work.
Background
The large hydraulic dynamometer is important equipment in a diesel engine bench test for a low-speed high-power ship, and in a diesel engine bench test of our company, one used Japanese FUCHINO hydraulic dynamometer has abnormal vibration, and after various possible reasons are examined and examined, the hydraulic dynamometer is confirmed to be connected with a main shaft bearing on the main machine side to be damaged. In the implementation of repair work, according to the structural principle of the hydraulic dynamometer, a bearing with a damaged bearing needs to be disassembled together with a related bearing sleeve. Because the bearing and the bearing sleeve have huge size and heavy weight, the outer surface of the bearing sleeve is corroded, and the bearing sleeve is difficult to disassemble. After field workers try various methods, the two parts still cannot be disassembled, and the overhauling working progress of the hydraulic dynamometer is seriously influenced. In order to solve the problem of disassembling the bearing and the bearing sleeve and consider the future installation problem, a maintenance work project team decides to research and develop a disassembly and assembly tool for designing the maintenance of the dynamometer.
Disclosure of Invention
The invention provides a bearing and bearing sleeve disassembling and assembling tool for a large hydraulic dynamometer, which has a simple structure and practical functions and aims at solving the difficulty in the maintenance work of the hydraulic dynamometer.
The technical solution of the invention is as follows:
the dismounting and assembling tool for the large hydraulic dynamometer comprises 2 flanges which are arranged side by side, a rib plate is arranged and connected between the 2 flanges along the circumferential direction, the 2 flanges are provided with two rings of connecting holes arranged along the circumferential direction and 1 central large hole which are arranged according to the corresponding structure of the hydraulic dynamometer, the connecting holes are matched with a screw rod and a nut which are connected with a screw hole of a bearing sleeve or a bearing support, and the large flange at the inner side is also matched with a jack which is contacted with the bearing sleeve or the bearing support. When the large hydraulic dynamometer is overhauled, the bearing sleeve is disassembled, the screw rod penetrates through the connecting hole to be connected and fixed with the screw hole of the bearing sleeve, the nut is screwed on the outer flange, the jack is jacked on the bearing support, the bearing sleeve is pulled out of the bearing support by driving the jack, and the bearing sleeve is disassembled; when the large hydraulic dynamometer is overhauled, the screw rod penetrates through the connecting hole to be connected and fixed with the screw hole of the bearing support by assembling the bearing sleeve, the nut is screwed on the flange on the outer side, the jack is jacked on the bearing sleeve, the bearing sleeve is extruded into the bearing support by driving the jack, and the bearing sleeve is assembled. When the bearing needs to be installed, the screw rod penetrates through the connecting hole to be connected and fixed with the screw hole of the bearing sleeve, the nut is screwed on the outer flange, the hydraulic jack is jacked on the bearing, the hydraulic jack is driven to work, the bearing is pressed into the bearing sleeve, and the bearing is assembled in the bearing sleeve.
This bearing and bearing housing of large-scale hydraulic dynamometer dismantle assembly fixture and solved:
1. by applying the disassembling and assembling tool, the smooth disassembling and assembling of the bearing and the bearing sleeve of the large hydraulic dynamometer are realized.
2. This dismantlement assembly fixture, structural design scientific and reasonable has guaranteed that the part atress is correct good in the dismantlement of bearing and bearing housing and assembly work, takes precautions against the risk that causes the damage to water conservancy dynamometer part.
3. The tool is adopted to disassemble and assemble the bearing sleeve and the bearing of the hydraulic dynamometer, so that the applied position of the force is transferred to the hydraulic open place convenient to operate from the inside of the hydraulic dynamometer difficult to operate, and the hydraulic jack with high thrust and long stroke can be conveniently used, thereby greatly improving the working efficiency and reducing the labor intensity and operation risk of maintenance workers.
Drawings
FIG. 1 is a schematic diagram of a front view and a side view of a composite flange body of a disassembly and assembly tool for overhauling a large hydraulic dynamometer, according to the present invention;
FIG. 2 is a schematic diagram of the disassembly and assembly tool for overhauling the large hydraulic dynamometer for disassembling and assembling the bearing sleeve and the bearing;
FIG. 3 is a schematic view of the assembly and disassembly tool for overhauling a large hydraulic dynamometer to assemble a bearing sleeve;
FIG. 4 is a schematic view of bearing assembly performed by the disassembly and assembly tool for overhauling the large hydraulic dynamometer;
the labels in the figure are respectively: the hydraulic pressure bearing comprises a main shaft 1, a screw rod 2, a nut 3, a tooling flange 4, a hydraulic jack 5, a bearing sleeve 6, a bearing support 7, a shell 8, a stator 9, a sealing part 10, a water throwing disc 11, a bearing 12, a pressing plate 13, rib plates 21 and a flange 22.
Detailed Description
The design of the present invention will be further explained with reference to the drawings.
A disassembly and assembly tool for overhauling a large hydraulic dynamometer is suitable for disassembling and assembling bearing sleeves and bearings of various types of large hydraulic dynamometers in FUCHINO company. The design has 2 large flanges, 12 rib plates, and 36 small holes and 1 central large hole which are arranged according to the corresponding structure of the hydraulic dynamometer. The steel plate is cut into two flanges, 24 gusset plates are arranged between the two flanges along radial direction, and are welded, fixed and connected into a composite flange body, the middle part of the composite flange body is provided with a centering hole with the diameter of 706mm according to the design size, a circle of the position corresponding to the bearing support is provided with 24 through holes with the diameter of 27mm, a circle of the position corresponding to the bearing sleeve is provided with 12 through holes with the diameter of 22mm, in the disassembly and assembly work of the bearing and the bearing sleeve, the composite flange body is matched with 24 full-thread screw rods of M24, 24M 24 nuts, 12 full-thread screw rods of M20 and 12M 20 nuts, the inner side of the composite flange body is provided with a hydraulic jack, and the hydraulic jack is communicated with a hydraulic pump through a pipeline.
The disassembly and assembly tool of the large hydraulic dynamometer is suitable for disassembling and assembling bearing sleeves and bearings of various types of large hydraulic dynamometers in FUCHINO company. The design scheme of this frock is: after strength calculation, a steel plate with the thickness of 20mm A3 is selected to be cut and manufactured into two main flanges and 24 rib plates, after all the main flanges and the 24 rib plates are welded, a centering hole with the diameter of 706mm, 24 through holes with the diameter of 27mm and 12 through holes with the diameter of 22mm are machined according to the design size, the main flanges and the rib plates are matched with 24 full-thread screws of M24, 24M 24 nuts, 12 full-thread screws of M20 and 12M 20 nuts for use in disassembly and assembly of a bearing and a bearing sleeve to form interconnection among the bearing sleeve, a tool flange and a bearing support, and large-tonnage thrust is applied through a hydraulic jack and a high-pressure hydraulic pump, so that the bearing and the bearing sleeve of the hydraulic dynamometer can be disassembled and assembled smoothly. The size of the relevant part of the hydraulic dynamometer is measured on site, the thrust required for disassembling the bearing sleeve and the bearing is calculated, the stress mode for disassembling and assembling the bearing sleeve and the bearing is determined, the technological parameters are refined, and the tool is designed as shown in figure 1.
And issuing a design drawing, cutting and blanking by a steel structure manufacturing part, and welding a blank for manufacturing the tool. The machining part is used for machining the finished product size of the tool.
After the tool is manufactured, in the maintenance site of the fucino hydraulic dynamometer, the bearing sleeve and the bearing are disassembled in the mode shown in fig. 2, the bearing sleeve is installed in the mode shown in fig. 3, and the bearing is installed in the mode shown in fig. 4.

Claims (2)

1. The utility model provides a dismantlement assembly fixture that large-scale water conservancy dynamometer overhauld which characterized in that: the hydraulic dynamometer comprises 2 parallel flanges, rib plates are connected between the 2 large flanges in a circumferential arrangement mode, the 2 large flanges are provided with two rings of connecting holes and 1 central large hole which are arranged in a circumferential arrangement mode according to the corresponding structure of the hydraulic dynamometer, the connecting holes are matched with a screw rod and a nut which are connected with a screw hole of a bearing sleeve or a bearing support, and a jack which is in contact with the bearing sleeve or the bearing support is also matched with the large flange on the inner side.
2. The disassembly and assembly tool for overhauling of the large hydraulic dynamometer according to claim 1, wherein the disassembly and assembly tool comprises: the steel plate is cut into two flanges, 24 gusset plates are arranged between the two flanges along radial direction, and are welded, fixed and connected into a composite flange body, the middle part of the composite flange body is provided with a centering hole with the diameter of 706mm according to the design size, a circle of the position corresponding to the bearing support is provided with 24 through holes with the diameter of 27mm, a circle of the position corresponding to the bearing sleeve is provided with 12 through holes with the diameter of 22mm, in the disassembly and assembly work of the bearing and the bearing sleeve, the composite flange body is matched with 24 full-thread screw rods of M24, 24M 24 nuts, 12 full-thread screw rods of M20 and 12M 20 nuts, the inner side of the composite flange body is provided with a hydraulic jack, and the hydraulic jack is communicated with a hydraulic pump through a pipeline.
CN201921763455.3U 2019-10-21 2019-10-21 Disassembly and assembly tool for overhauling large hydraulic dynamometer Active CN210878451U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921763455.3U CN210878451U (en) 2019-10-21 2019-10-21 Disassembly and assembly tool for overhauling large hydraulic dynamometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921763455.3U CN210878451U (en) 2019-10-21 2019-10-21 Disassembly and assembly tool for overhauling large hydraulic dynamometer

Publications (1)

Publication Number Publication Date
CN210878451U true CN210878451U (en) 2020-06-30

Family

ID=71340280

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921763455.3U Active CN210878451U (en) 2019-10-21 2019-10-21 Disassembly and assembly tool for overhauling large hydraulic dynamometer

Country Status (1)

Country Link
CN (1) CN210878451U (en)

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