CN111151991A - Part disassembling device and method for connecting gear with high-pressure water pump crankshaft - Google Patents
Part disassembling device and method for connecting gear with high-pressure water pump crankshaft Download PDFInfo
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- CN111151991A CN111151991A CN202010119268.2A CN202010119268A CN111151991A CN 111151991 A CN111151991 A CN 111151991A CN 202010119268 A CN202010119268 A CN 202010119268A CN 111151991 A CN111151991 A CN 111151991A
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- crankshaft
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- gear
- water pump
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 116
- 239000010959 steel Substances 0.000 claims abstract description 116
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- LNSPFAOULBTYBI-UHFFFAOYSA-N [O].C#C Chemical group [O].C#C LNSPFAOULBTYBI-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a simple part disassembling device for a connecting gear of an upper crankshaft of a high-pressure water pump, which comprises a structural part frame and a baking gun; the structural member frame device comprises two rectangular support steel plates, a bolt hole is formed in each of the four corners of each support steel plate, and an upper layer I-shaped steel groove, a middle layer I-shaped steel groove and a lower layer I-shaped steel groove are formed in the middle of each support steel plate from top to bottom symmetrically with respect to a vertical central line; the two supporting steel plates are vertically arranged in parallel at intervals, the four corners of the two supporting steel plates are fixedly connected through connecting screws and nuts, and upper, middle and lower layer I-steel matched with the grooves are inserted into the corresponding upper, middle and lower layer I-steel grooves respectively; the upper parts of the two lower-layer I-shaped steels are fixedly provided with a bottom plate, and the center of the bottom plate is provided with a jacking device. By applying the invention, the parts of the crankshaft connecting gear on the high-pressure water pump can be quickly taken out, the labor intensity of workers is reduced, the labor efficiency is improved, and the repair cost is reduced.
Description
Technical Field
The invention belongs to the technical field of high-pressure water pump equipment for rolling high-speed wheels, and particularly relates to a simple part disassembling device and a simple part disassembling method for connecting gears with a high-pressure water pump crankshaft.
Background
The horse steel wheel company is an important train wheel production base in China, is the biggest wheel production enterprise in Asia, is the only enterprise capable of producing the wheels of passenger cars with the speed grade of more than 120Km/h in China, and the research and development of heavy-duty wheels reach the international advanced level. At present, two wheel production lines are provided, the annual production capacity is 80 ten thousand, the key department is a high-pressure pump room, 12 high-pressure water pumps are specially used for a wheel two-line rolling system, the conveying pressure is 32 MPa, and the two rows of the high-pressure water pumps are arranged on the ground. The large crankshaft is a main core driving spare part for pressurization work in each high-pressure water pump, the mode of high-speed driving operation is that one end of a crankshaft connecting gear is matched with one end of a large motor shaft gear, after the two gears are matched and meshed, the large motor drives the operation, because the high-pressure water pump supplies water in high-speed operation for a long time, an automatic oil supply system and a manual oil supply system of various spare parts are not smooth, and the parts are not in place enough during point inspection and maintenance inspection of daily equipment, the abrasion and damage replacement of various high-pressure pump body parts are directly caused, particularly, the abrasion and breakage of the large crankshaft connecting shaft gear occur frequent replacement, the assembly of the large crankshaft shaft and the connecting gear is formed by heating the shaft gear through oil temperature and installing the shaft pin, so the replacement and the disassembly are difficult, the traditional method for disassembling the shaft gear is to take out the large crankshaft, the shaft gear is symmetrically split for a long time by an electric welder using an oxygen-acetylene flame using a G01-300 type cutting gun, and if impact and a horn device are used, the shaft and the gear are not suitable for splitting. The traditional flame cutting method solves the problem of the separation of a shaft and a gear, but also has the following problems: 1. the cutting flame cuts off the symmetrical crankshaft axial surface joint surface after the shaft gear is split due to the cutting horizontal factor, and the service performance of the shaft body is directly influenced although the crankshaft cannot be scrapped. 2. The damage of the shaft surface joint surface of the crankshaft necessitates surface repair before the gear is assembled for the second time, thus affecting the assembly time and increasing the assembly cost. In addition, the simple part splitting device and the simple part splitting method for the crankshaft connecting gear on the high-pressure water pump need to ensure that the integral shaft gear cannot generate structural deformation and damage a joint surface when being split, and do not influence the assembly precision of secondary re-assembly matching and other various non-standard performances.
Disclosure of Invention
The invention aims to solve the problem that a traditional taking method is difficult to replace and split, and provides a simple splitting device and a splitting method for parts of a crankshaft connecting gear on a high-pressure water pump, and the simple splitting device and the splitting method are implemented.
The technical scheme for solving the technical problem of the invention is as follows:
the invention relates to a simple part disassembling device for a connecting gear of an upper crankshaft of a high-pressure water pump, which is characterized by comprising a structural part frame and a baking gun; the structural member frame device comprises two rectangular supporting steel plates, bolt holes are respectively formed in the positions of four corners of each supporting steel plate, and two upper-layer I-shaped steel grooves, two middle-layer I-shaped steel grooves and two lower-layer I-shaped steel grooves are symmetrically formed in the middle of each supporting steel plate from top to bottom around a vertical central line; the two supporting steel plates are vertically arranged in parallel at intervals, the four corners of the two supporting steel plates are fixedly connected through connecting screws and nuts, and upper-layer I-steel, middle-layer I-steel and lower-layer I-steel which are matched with the grooves are inserted into corresponding upper-layer, middle-layer and lower-layer I-steel grooves respectively; and a bottom plate is fixedly arranged above the two lower-layer I-shaped steels, and a jacking device is arranged at the center of the bottom plate.
As a further improvement of the technical scheme of the invention, the jacking device is a hydraulic jack.
When the technical scheme of the invention is further improved, the upper layer I-steel, the middle layer I-steel and the lower layer I-steel are all I-steel with the specification of 200 mm.
As a further improvement of the technical scheme of the invention, the supporting steel plate is a steel plate with the thickness of 30 mm.
As a further improvement of the technical scheme of the invention, the bottom plate is a steel plate with the thickness of 20 mm.
As a further improvement of the technical scheme of the invention, the baking gun is an H01-20 baking gun.
As a further improvement of the technical scheme of the invention, the connecting screw is processed by a round rod with the diameter of 50 mm.
Another technical solution to solve the technical problem of the present invention is as follows:
according to the technical scheme, the crankshaft and the gear are inserted into a connecting pin shaft hole through a pin shaft to be connected and fixed, and the method is characterized in that the specifications of all parts forming a structural member frame are calculated according to the specifications of the crankshaft and the gear and are manufactured and assembled, two supporting steel plates are vertically arranged on a flat ground in parallel at intervals, four corners of the two supporting steel plates are connected and fixed through connecting screws and matched nuts respectively, then two lower-layer I-shaped steels are inserted into corresponding lower-layer I-shaped steel grooves in the two supporting steel plates respectively, a bottom plate is arranged on the lower-layer I-shaped steel, and a fixed jacking device is arranged at the center of the bottom plate; vertically hanging the crankshaft by the crane and using the hanging strip, hanging one end of the connecting gear downwards, then slowly moving the crane to place the crankshaft into the structural member frame and tightly attaching the downwards end part of the crankshaft to a piston of the jacking device; two upper-layer I-steel beams are inserted into corresponding upper-layer I-steel grooves on the two supporting steel plates in parallel, and the crank arm is supported and supported just right to play a role in positioning and fixing; inserting two middle-layer I-beams into corresponding middle-layer I-beam grooves on the two supporting steel plates in parallel and tightly pressing the two middle-layer I-beams on the two sides of the gear; after all the parts are assembled and positioned and fixed, baking is carried out on any side of the surface of the gear by using a baking gun, when the temperature reaches 250 ℃ and the gear is slightly heated and expanded, a jacking device is started and a piston of the jacking device is controlled to automatically and quickly eject out a crankshaft upwards, the gear is automatically separated along with the crankshaft moving upwards, and then the whole crankshaft is lifted and transported to an assembly position where the crankshaft is connected with the gear by a suspended travelling crane.
As a further improvement of the technical scheme of the invention, in order to ensure that the gear is separated from the crankshaft, the piston of the jacking device jacks the center of the crankshaft.
When the technical scheme of the invention is further improved, the crankshaft is ensured not to be heated when the baking gun is used for baking on any side of the surface of the gear.
Compared with the prior art, the simple part splitting device for the crankshaft connecting gear on the high-pressure water pump has the advantages of novel structural design, compact and reasonable configuration, investment saving, low operation and maintenance cost, convenience in operation and reliability in operation, can meet the technological requirement of quickly replacing the crankshaft connecting gear on the high-pressure water pump by matching with the splitting method, provides guarantee for reasonable production, is high in practicability and is worthy of popularization.
Drawings
The invention is further described with reference to the following figures and detailed description:
FIG. 1 is a schematic structural diagram of a simple component disassembling device for a connecting gear of an upper crankshaft of a high-pressure water pump according to the invention;
FIG. 2 is a schematic side view of a simple component disassembling device for a crankshaft connecting gear on a high pressure water pump according to the present invention;
FIG. 3 is a schematic view of a connecting structure of the crankshaft and the gear according to the present invention;
in the figure: 1-connecting screw 2-nut 3-baking gun 4-lower layer I-steel 5-middle layer I-steel 6-upper layer I-steel 7-supporting steel plate 8-bottom plate 9-jacking device 10-gear 11-crankshaft 13-connecting pin shaft hole 14-pin shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "upper", "lower", "left", "right", "front", "rear", and the like used in the specification and claims of the present disclosure are used only to indicate relative positional relationships, and when the absolute position of a described object is changed, the relative positional relationships are changed accordingly.
Example 1:
as shown in fig. 1 to 3, the simple component disassembling device for the upper crankshaft connecting gear of the high-pressure water pump is characterized by comprising a structural component frame and a baking gun 3 with the model number of H01-20; the structural member frame device comprises two rectangular supporting steel plates 7 made of steel plates with the thickness of 30mm, four corners of each supporting steel plate 7 are respectively provided with a bolt hole (the attached drawing is not shown), and the middle part of each supporting steel plate 7 is bilaterally symmetrical about a vertical central line and is provided with two upper-layer I-shaped steel grooves, two middle-layer I-shaped steel grooves and two lower-layer I-shaped steel grooves (the attached drawing is not shown) from top to bottom; the two supporting steel plates are vertically arranged in parallel at intervals, the four corners of the two supporting steel plates are fixedly connected through the arrangement of connecting screws 1 and the matching nuts 2, and two upper-layer I-steel 6, two middle-layer I-steel 5 and two lower-layer I-steel 4 which are matched with the grooves and are made of 200mm I-steel are respectively inserted into the corresponding upper-layer, middle-layer and lower-layer I-steel grooves; two bottom plate 8 that the top of lower floor's I-steel 4 is fixed to be provided with by the steel sheet that thickness is 20mm is made, and the center department of this bottom plate 8 is provided with jacking device 9, and this jacking device 9 can further set up to hydraulic jack, and this hydraulic jack includes parts such as working hydraulic cylinder, hydraulic pump, liquid, piston, handle and return liquid valve.
When parts of the simple part disassembling device for the upper crankshaft connecting gear of the high-pressure water pump are manufactured and assembled, the connecting screw rod 1 is processed by a round rod with the diameter of 50mm, and the nut 2 is matched with the connecting screw rod 1; the bottom plate 8 is rectangular, and the width of the bottom plate must be larger than the distance between the two lower-layer I-beams 4 so as to be arranged on the two lower-layer I-beams 4; during assembly, two supporting steel plates 7 are firstly symmetrically and vertically placed in parallel, the long side faces upwards, four corners of the two symmetrical supporting steel plates 7 are firmly connected through a connecting screw rod 1 with the diameter of 50mm and a nut 2 to form a cuboid frame, two lower-layer I-shaped steels 4 are parallelly inserted into corresponding lower-layer I-shaped steel grooves in the two supporting steel plates 7, a base plate 8 is fixedly arranged on the two lower-layer I-shaped steels 4, a jacking device 9 is installed on the base plate 8, and finally each upper-layer I-shaped steel 6 and each middle-layer I-shaped steel 5 are respectively inserted into corresponding upper-layer I-shaped steel grooves and corresponding middle-layer I-shaped steel grooves in the two supporting steel plates 7.
Example 2:
as shown in fig. 1 to 3, in the method for disassembling the simple component disassembling device for the crankshaft connecting gear on the high-pressure water pump in embodiment 1, the crankshaft 11 and the gear 10 are inserted into a connecting pin shaft hole 13 through a pin shaft 14 to be connected and fixed, and the method is characterized in that firstly, the specifications of each component forming a structural member frame are calculated according to the specifications of the crankshaft 11 and the gear 10, and are manufactured and assembled, two support steel plates 7 are vertically arranged on a flat ground in parallel at intervals, and are respectively connected and fixed at four corners of the two support steel plates through connecting screws 1 and nuts 2, then, two lower-layer i-beams 4 are respectively inserted into corresponding lower-layer i-beam grooves on the two support steel plates 7, a bottom plate 8 is arranged on the lower-layer i-beam 4, and a fixed jacking device 9 is arranged at the center of the bottom; because the large crankshaft 11 of the high-speed wheel high-pressure water pump has a large volume and a weight of about 1000 kilograms, the crankshaft 11 is vertically hung and suspended by the crane and the hanging belt, one end of the connecting gear 10 is downward, then the crane is slowly moved to place the crankshaft 11 into the structural member frame and tightly attach the downward end part of the crankshaft 11 to the piston of the jacking device 9, and in order to enable the gear 10 to be separated from the crankshaft 11, the piston of the jacking device 9 is jacked at the center of the crankshaft 11; two upper-layer I-steel bars 6 are inserted into corresponding upper-layer I-steel grooves on two supporting steel plates 7 in parallel, and just support and support the crank arm to play roles in positioning and fixing (the positions of the middle-layer I-steel groove and the upper-layer I-steel groove in the embodiment are set according to the specification of the crank shaft 11); two middle-layer I-beams 5 are inserted into corresponding middle-layer I-beam grooves on two supporting steel plates 7 in parallel and tightly pressed on two sides of the gear 10; after all the components are assembled and positioned and fixed, the baking gun 3 is used for baking on any side of the surface of the gear 10, when the temperature reaches 250 ℃ and the gear 10 slightly expands due to heating, the jacking device 9 is started and the piston of the jacking device is controlled to automatically and quickly jack the crankshaft 11 upwards, the gear 10 is automatically separated along with the crankshaft 11 moving upwards, and then the whole crankshaft 11 connected with the gear 10 is hoisted and assembled by the suspended travelling crane.
In this embodiment, when the baking gun 3 is used to bake any one side of the surface of the gear 10, the crankshaft 11 is kept from being heated.
By applying the simple part splitting device and the simple part splitting method for the crankshaft connecting gear on the high-pressure water pump, the advantages of rapidness, safety and reduction of a large amount of cost are achieved, the surface of the crankshaft connecting gear is not damaged, and the next procedure is guaranteed.
Claims (10)
1. A simple part disassembling device for a connecting gear of an upper crankshaft of a high-pressure water pump is characterized by comprising a structural part frame and a baking gun (3); the structural member frame device comprises two rectangular supporting steel plates (7), bolt holes are respectively formed in the positions of four corners of each supporting steel plate (7), and two upper-layer I-shaped steel grooves, two middle-layer I-shaped steel grooves and two lower-layer I-shaped steel grooves are symmetrically formed in the middle of each supporting steel plate (7) from top to bottom relative to a vertical central line; the two supporting steel plates are vertically arranged in parallel at intervals, the four corners of the two supporting steel plates are fixedly connected through arranging connecting screws (1) and matching nuts (2), and upper-layer I-steel (6), middle-layer I-steel (5) and lower-layer I-steel (4) which are matched with the grooves are respectively inserted into the corresponding upper-layer I-steel groove, middle-layer I-steel groove and lower-layer I-steel groove; a bottom plate (8) is fixedly arranged above the two lower-layer I-shaped steels (4), and a jacking device (9) is arranged at the center of the bottom plate (8).
2. The simple component disassembling device for the connecting gear of the upper crankshaft of the high-pressure water pump as claimed in claim 1, wherein the jacking device (9) is a hydraulic jack.
3. The simple part disassembling device for the connecting gear of the upper crankshaft of the high-pressure water pump as claimed in claim 1, wherein the upper layer I-steel (6), the middle layer I-steel (5) and the lower layer I-steel (4) are all I-steels with the specification of 200 mm.
4. The simple component disassembling device for the crankshaft connecting gear on the high-pressure water pump as claimed in claim 1, wherein the supporting steel plate (7) is a steel plate with a thickness of 30 mm.
5. The simple component disassembling device for the crankshaft connecting gear on the high-pressure water pump as claimed in claim 1, wherein the bottom plate (8) is a steel plate with a thickness of 20 mm.
6. The simple component disassembling device for the crankshaft connecting gear on the high-pressure water pump as claimed in claim 1, wherein the baking gun (3) is an H01-20 baking gun.
7. The simple part disassembling device for the connecting gear of the upper crankshaft of the high-pressure water pump as claimed in claim 1, wherein the connecting screw (1) is processed by a round rod with a diameter of 50 mm.
8. The method for disassembling the simple component disassembling device for the crankshaft connecting gear on the high-pressure water pump according to any one of claims 1 to 7, the crankshaft (11) and the gear (10) are inserted into a connecting pin shaft hole (13) through a pin shaft (14) to be connected and fixed, it is characterized in that the specifications of each part forming the structural member frame are calculated according to the specifications of a crankshaft (11) and a gear (10) and are manufactured and assembled, two supporting steel plates (7) are vertically arranged on a flat ground in parallel at intervals and are respectively connected and fixed at the four corners of the two supporting steel plates through connecting screw rods (1) and matching nuts (2), then the two lower layer I-shaped steels (4) are respectively inserted into the corresponding lower layer I-shaped steel grooves on the two supporting steel plates (7), a bottom plate (8) is arranged on the lower layer I-shaped steel (4), and a fixed jacking device (9) is arranged at the center of the bottom plate (8); vertically hanging and suspending a crankshaft (11) by a crane through a hanging belt, enabling one end of a connecting gear (10) to face downwards, then slowly moving the crane to place the crankshaft (11) into a structural member frame and tightly attaching the downward end of the crankshaft (11) to a piston of a jacking device (9); two upper-layer I-shaped steels (6) are inserted into corresponding upper-layer I-shaped steel grooves on two supporting steel plates (7) in parallel, and just support and support the crank arm to play roles in positioning and fixing; two middle-layer I-shaped steels (5) are inserted into corresponding middle-layer I-shaped steel grooves on two supporting steel plates (7) in parallel and tightly pressed on the two sides of the gear (10); after all the components are assembled and positioned and fixed completely, a baking gun (3) is adopted to bake any one side of the surface of the gear (10), when the temperature reaches 250 ℃, and the gear (10) is slightly heated to expand, the jacking device (9) is started and the piston of the jacking device is controlled to automatically and quickly eject the crankshaft (11) upwards, the gear (10) is automatically separated along with the crankshaft (11) moving upwards, and then the whole crankshaft (11) connected with the gear (10) is lifted and transported to the assembly position by a suspended travelling crane.
9. The method for disassembling the simple component disassembling device for the crankshaft connecting gear on the high-pressure water pump according to claim 8, characterized in that, in order to ensure that the gear (10) is disengaged from the crankshaft (11), the piston of the jacking device (9) is propped against the center of the crankshaft (11).
10. The method for disassembling the simple component disassembling device for the crankshaft connecting gear on the high-pressure water pump according to claim 8 is characterized in that when the baking gun (3) is used for baking on any side of the surface of the gear (10), the crankshaft (11) is ensured not to be heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010119268.2A CN111151991A (en) | 2020-02-26 | 2020-02-26 | Part disassembling device and method for connecting gear with high-pressure water pump crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010119268.2A CN111151991A (en) | 2020-02-26 | 2020-02-26 | Part disassembling device and method for connecting gear with high-pressure water pump crankshaft |
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| Publication Number | Publication Date |
|---|---|
| CN111151991A true CN111151991A (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010119268.2A Pending CN111151991A (en) | 2020-02-26 | 2020-02-26 | Part disassembling device and method for connecting gear with high-pressure water pump crankshaft |
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| CN (1) | CN111151991A (en) |
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| CN106150106A (en) * | 2015-04-28 | 2016-11-23 | 中国二十冶集团有限公司 | A kind of just carrying the large-scale component pushing up and equipment high-altitude erecting device and installation method |
| CN106736238A (en) * | 2016-12-12 | 2017-05-31 | 中国燃气涡轮研究院 | A kind of decomposition method of elastic conjunction hollow shaft |
| CN208051323U (en) * | 2018-04-19 | 2018-11-06 | 陕煤集团神南产业发展有限公司 | A kind of sprocket wheel dismantling machine |
| CN208758962U (en) * | 2018-08-24 | 2019-04-19 | 南京钢铁四通运输有限责任公司 | For mounting and dismounting the vertical press of interference fit axis |
| CN208880615U (en) * | 2018-09-30 | 2019-05-21 | 江苏太阳科技股份有限公司 | A kind of large gear main shaft dismounting auxiliary tool |
| JP2019181576A (en) * | 2018-04-02 | 2019-10-24 | 日本電産株式会社 | Alignment device |
| CN211991688U (en) * | 2020-02-26 | 2020-11-24 | 安徽马钢设备检修有限公司 | Part splitting device for connecting gear with high-pressure water pump crankshaft |
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2020
- 2020-02-26 CN CN202010119268.2A patent/CN111151991A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875166A (en) * | 2009-11-13 | 2010-11-03 | 常州市华立液压润滑设备有限公司 | Gear and shaft interference force inspecting and disassembling device |
| CN101804555A (en) * | 2010-04-27 | 2010-08-18 | 武汉一冶机电工程有限责任公司 | Method for disassembling, assembling and replacing large interference-fit shaft coupler |
| CN103831605A (en) * | 2014-03-19 | 2014-06-04 | 湖州市千金宝云机械铸件有限公司 | Dismounting and mounting integrated machine for automobile steering knuckle vertical shaft |
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| CN106736238A (en) * | 2016-12-12 | 2017-05-31 | 中国燃气涡轮研究院 | A kind of decomposition method of elastic conjunction hollow shaft |
| JP2019181576A (en) * | 2018-04-02 | 2019-10-24 | 日本電産株式会社 | Alignment device |
| CN208051323U (en) * | 2018-04-19 | 2018-11-06 | 陕煤集团神南产业发展有限公司 | A kind of sprocket wheel dismantling machine |
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| CN208880615U (en) * | 2018-09-30 | 2019-05-21 | 江苏太阳科技股份有限公司 | A kind of large gear main shaft dismounting auxiliary tool |
| CN211991688U (en) * | 2020-02-26 | 2020-11-24 | 安徽马钢设备检修有限公司 | Part splitting device for connecting gear with high-pressure water pump crankshaft |
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