CN110744486A - Disassembling tool and disassembling method for crankshaft damper of diesel engine - Google Patents
Disassembling tool and disassembling method for crankshaft damper of diesel engine Download PDFInfo
- Publication number
- CN110744486A CN110744486A CN201910917253.8A CN201910917253A CN110744486A CN 110744486 A CN110744486 A CN 110744486A CN 201910917253 A CN201910917253 A CN 201910917253A CN 110744486 A CN110744486 A CN 110744486A
- Authority
- CN
- China
- Prior art keywords
- crankshaft
- shock absorber
- shell
- piston
- stretcher
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 10
- 239000006096 absorbing agent Substances 0.000 claims abstract description 66
- 230000035939 shock Effects 0.000 claims abstract description 66
- 230000007704 transition Effects 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 claims abstract description 4
- 230000000670 limiting effect Effects 0.000 claims description 5
- 239000003921 oil Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention relates to a disassembling tool for a crankshaft shock absorber of a diesel engine, which comprises a piston, a shell, a lengthened connecting pipe, a transition plate and the like; the piston and the shell are provided with positioning pins, so that the functions of positioning the crankshaft and the shock absorber can be realized, and the piston shell assembly can be reversely assembled and is respectively used for assembly and disassembly; one end of the lengthened connecting pipe is provided with an external thread which is matched with the oil hole at the tail end of the crankshaft, and the other end of the lengthened connecting pipe is provided with an internal thread which is matched with the quick connector; the transition plate is positioned between the shell and the shock absorber, and a threaded hole and a countersunk through hole are arranged on the transition plate, so that the connection effect can be achieved. The crankshaft damper mounting and dismounting device has the advantages that the crankshaft damper is dismounted and mounted, the use is simple, the operation is convenient, the application range is wide, and the crankshaft damper mounting and dismounting device can be applied to different types of machines.
Description
Technical Field
The invention relates to the technical field of diesel engines, in particular to a tool for disassembling and assembling a crankshaft damper of a diesel engine, which is particularly suitable for marine high-power series diesel engines.
Background
The diesel engine comprises two forms of a four-stroke diesel engine and a two-stroke diesel engine, wherein the four-stroke diesel engine is most widely applied, and the working process of the four-stroke diesel engine comprises four working processes of air intake, compression, combustion work and air exhaust. The diesel engine has the outstanding advantages of strong power, low oil consumption (15-30 percent lower than that of a gasoline engine), low pollutant discharge, high reliability and the like, and becomes a power machine with the most extensive application in the current human society. The method is widely applied to various fields of national economy, such as automobiles, tractors, engineering machinery, small agricultural power, industrial fixed power generation, railway locomotives, ships, military naval vessels, tanks and the like.
In the case of diesel engines, the crankshaft is one of its main moving parts, being a torsionally elastic system, which has a certain natural frequency of vibration. During the operation of the diesel engine, because each cylinder is fired for each time, the magnitude and direction of the force transmitted to the crank pin of the crankshaft through the connecting rod are periodically changed, and the instantaneous angular speed of the crank throw rotation of the crankshaft caused by the periodic exciting force is also periodically changed. Because the moment of inertia of the flywheel mounted at the end of the crankshaft is large, the angular velocity of the flywheel can be approximately considered to be uniform, so that the instantaneous angular velocity of the crank throw is suddenly fast and suddenly slow relative to the flywheel, and torsional vibration relative to the flywheel is formed. When the torsional vibration frequency and the self-vibration frequency of the crankshaft form resonance, the torsional vibration of the crankshaft is intensified, the power of the engine is lost, and the abrasion of the timing gear is intensified.
The comprehensive action of the restoring force of the elastic element in the crankshaft shock absorber and the damping of the lubricating oil can reduce the torsional vibration amplitude; the fatigue life of the crankshaft is prolonged. Torque is transmitted, and torque fluctuation is reduced; the vibration and noise level of the diesel engine is reduced.
Therefore, the crankshaft damper plays an important role in the service life, efficiency, vibration, noise and the like of the diesel engine. And in fact bent axle and bumper shock absorber are mostly the design product, need design corresponding assembly and disassembly tools to different interface sizes, probably cause the problem that the instrument is complicated, the dismouting is inconvenient.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the disassembling tool for the crankshaft damper of the diesel engine, which can finish assembling and disassembling work by only using one group of tools and has the characteristics of simple structure and convenient operation.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a disassembling tool for a crankshaft shock absorber of a diesel engine is characterized by comprising a piston, a shell, a lengthened connecting pipe, a transition plate and the like; the piston and the shell are provided with positioning pins, so that the functions of positioning the crankshaft and the shock absorber can be realized, and the piston shell assembly can be reversely assembled and is respectively used for assembly and disassembly; one end of the lengthened connecting pipe is provided with an external thread which is matched with the oil hole at the tail end of the crankshaft, and the other end of the lengthened connecting pipe is provided with an internal thread which is matched with the quick connector; the transition plate is positioned between the shell and the shock absorber, and a threaded hole and a countersunk through hole are arranged on the transition plate, so that the connection effect can be achieved.
Piston and casing on install the locating pin, can realize the function of location bent axle and bumper shock absorber, and piston housing assembly can reverse assembly, is used for assembling and dismantles respectively.
The piston and shell assembly is externally connected with a high-pressure oil pump to drive the assembly and disassembly of the shock absorber.
One end of the lengthened connecting pipe is provided with an external thread, and the other end of the lengthened connecting pipe is provided with an internal thread, and is connected with a manual pump and a crankshaft, so that the function of opening a shock absorber pump and then fastening the shock absorber pump at the tail end of the crankshaft is realized.
The transition plate can be used for connecting the shell with different thread pitch circle diameters with the shock absorber.
Because the inner wall of the shock absorber and the tail end of the crankshaft are conical surfaces with 1:80 conicity, the inner wall of the shock absorber is required to be expanded under the action of high-pressure oil and then move forwards or backwards under the action of the stretcher until reaching a limiting point or being loosened, and therefore the mounting and dismounting of the shock absorber are realized. Therefore, a lengthened connecting pipe must be installed, so that the lubricating oil from the manual pump can enter the oil passage of the crankshaft, and the diameter of the inner wall of the shock absorber is enlarged under the action of pressure.
During assembly, the tail end of the shock absorber is also connected with a crankshaft gear ring of the diesel engine, so whether the relative position deviation of the shock absorber and the crankshaft determines whether the timing of the diesel engine is accurate, and therefore when the shock absorber is installed, the relative position of the shock absorber and the crankshaft needs to be ensured. Two positioning pins are therefore provided at the axial position of the piston and the housing. And a radial positioning pin is also designed at the convex shoulder of the shell, and a guide groove is designed on the piston, so that the relative positions of the shock absorber shell and the piston cannot be changed no matter in work or non-work, and the relative positions of a crankshaft and a shock absorber positioned by the shock absorber cannot be influenced. During assembly, the outer diameter of the shoulder designed on the shell is slightly smaller than the inner diameter of the end part of the shock absorber, and the inner diameter of the shoulder is smaller than the diameter of the tail end of the crankshaft, so that the shock absorber can be pushed to advance after the stretcher is pressurized, a limiting effect can be achieved, the end faces of the shock absorber and the crankshaft are flush, the requirement on installation size is met, and the complete meshing of the crankshaft gear ring and the tooth faces of other timing gears is ensured.
When the damper assembly is disassembled, because the pitch circle sizes of the connecting bolt hole at the tail end of the crankshaft and the connecting bolt hole of the damper are determined, if the pitch circle sizes of the connecting through hole in the shell and the connecting bolt hole are consistent, the acting area of the internal pressure of the stretcher is sharply reduced under the condition of ensuring the structural strength, so that the pressure requirement in the cavity is sharply increased, and the gravity component force of the damper assembly along the conical surface and the friction force of oil sliding on the inner wall of the damper assembly are overcome. The excessive pressure puts high requirements on the sealing performance of the O-shaped ring and the safety of the product. Therefore, in order to ensure the sealing performance and the economical efficiency of the stretcher, the pitch circle sizes of the connecting through holes on the shell and the connecting bolt holes on the shock absorber are different when the stretcher is designed, the shock absorber is phi 225mm, the shell is phi 250mm, and the pressure action area inside the chamber is 112cm2. Therefore, the transition plate is required to be used, bolt holes connected with the shell are distributed on the outer ring of the transition plate, and the inner ring of the transition plate is provided with countersunk head through holes for mounting hexagon socket head cap screws connected with the connecting bolt holes of the shock absorber. When dismantling, the stretcher is mounted in reverse, the housing is pressurized with oil in the chamberThe shock absorber slides outwards under the action of the connecting plate, and the shock absorber is pulled through the connecting plate to achieve the dismantling function. And after the shock absorber separates with the bent axle end, under the pulling force effect, the connecting plate finally can contact with the terminal surface of piston, can also realize limit function, prevents that the shock absorber from flying out from the bent axle end suddenly.
The method for disassembling and assembling by using the disassembling and assembling tool of the crankshaft shock absorber of the diesel engine comprises the following steps:
during assembly:
step 1: hoisting the shock absorber assembly by using the hoisting ring screw;
step 2: matching the damper with the tail end of the crankshaft until the damper is half of the thickness of the crankshaft;
and step 3: aligning the damper hole and the crankshaft pin hole with a positioning pin on the stretcher respectively, and then continuously installing the damper until the damper cannot be pushed by manpower;
and 4, step 4: the stretcher is assembled in the forward direction and fixed at the tail end of the crankshaft through a connecting bolt hole in a piston of the stretcher, so that the piston and two positioning pins on a shell are ensured to be installed correctly;
and 5: mounting the lengthened connecting pipe, connecting the lengthened connecting pipe with a manual pump, and simultaneously connecting the shell with a high-pressure pump;
step 6: pressurizing the inner cavity of the stretcher to a value recommended by a manufacturer through a high-pressure pump;
and 7: pressurizing the shock absorber and the conical surface of the crankshaft by using a manual pump until the values are recommended by a manufacturer;
and 8: releasing the pressure in the manual pump after the stretcher housing is no longer advanced;
step 9, releasing the pressure in the high-pressure pump after 30 seconds, and removing the stretcher and the accessories thereof
When the device is disassembled:
step 1: installing a distance ring and installing a transition plate on the shock absorber by utilizing an inner hexagonal screw;
step 2: reversely mounting the stretcher on the distance ring, fixing the piston at the tail end of the crankshaft by using a bolt, and then mounting a connecting bolt of the shell and the transition plate;
and step 3: mounting the lengthened connecting pipe, connecting the lengthened connecting pipe with a manual pump, and simultaneously connecting the shell with a high-pressure pump;
and 4, step 4: pressurizing the conical parts of the crankshaft and the shock absorber to a value recommended by a manufacturer by using a manual pump;
and 5: pressurizing the inner cavity of the stretcher by using a high-pressure pump until reaching a limiting position;
step 6: releasing the pressure in the manual pump and the high pressure pump;
and 7: removing the stretcher and accessories thereof;
and 8: the shock absorber slides along the conical surface of the crankshaft until the shock absorber can be lifted by a lifting ring screw and detached.
Compared with the prior art, the invention has the beneficial effects that:
① the invention realizes the positioning function of the crankshaft and the shock absorber;
② the invention has a positioning function during assembly, which can ensure the installation size of the shock absorber;
③ the invention has a limit function when it is removed, which can improve the installation when it is removed;
④ the stretcher of the invention can be assembled in forward and reverse directions, respectively realize the assembly and disassembly functions, and has the characteristics of simple operation, convenient use, economy and reliability
Drawings
FIG. 1 is a schematic view of the assembling and disassembling tool for the crankshaft damper of the diesel engine.
FIG. 2 is a schematic view of the disassembly and assembly tool for the crankshaft damper of the diesel engine with the disassembly and assembly tool removed.
FIG. 3 is a schematic view of the assembling method of the disassembling tool for the crankshaft damper of the diesel engine.
FIG. 4 is a schematic view of the disassembling tool for the crankshaft damper of the diesel engine according to the present invention.
Detailed Description
The invention will be described in further detail with reference to the drawings and specific examples, which should not be construed as limiting the scope of the invention.
Referring to fig. 1-2, fig. 1 is a schematic structural view of a disassembling tool for a crankshaft damper of a diesel engine according to the present invention, and fig. 2 is a schematic structural view of the disassembling tool for the crankshaft damper of the diesel engine according to the present invention. As shown in fig. 1, when the tool for disassembling and assembling the crankshaft damper of the diesel engine is used for assembling, the tool comprises a shell 1, a piston 2, a positioning pin 6, a connecting bolt 7 and other parts; the shell 1 is provided with a positioning pin 6, and the piston 2 is provided with a guide groove; the connecting bolt 7 is used for fastening the piston and the tail end of the crankshaft. As shown in fig. 2. When the diesel engine crankshaft damper dismounting tool is used for dismounting, the diesel engine crankshaft damper dismounting tool comprises a shell 1, a piston 2, a positioning pin 6, a transition plate 12, a distance ring 13, a connecting bolt 11, an inner hexagon screw 14 and a connecting bolt 15; the shell 1 is provided with a positioning pin 6, and the piston 2 is provided with a guide groove; the inner ring and the outer ring of the transition plate 12 are respectively distributed with connecting bolt holes and countersunk through holes; the connecting bolt 11 is used for fastening the shell 1 and the transition plate 12; the inner hexagon screw 14 is used for fastening the transition plate 12 and the shock absorber; the connecting bolt 15 is used for fastening the piston 2 and the tail end of the crankshaft.
FIG. 3 is a schematic view of the assembling method of the crankshaft damper assembling and disassembling tool of the present invention, and as can be seen, the assembling steps of the crankshaft damper assembling and disassembling tool of the present invention are as follows:
step 1: hoisting the shock absorber assembly by using the hoisting ring screw;
step 2: matching the damper with the tail end of the crankshaft until the damper is half of the thickness of the crankshaft;
and step 3: aligning the damper hole and the crankshaft pin hole with positioning pins 16 and 17 on the stretcher respectively, and then continuously installing the damper until the damper cannot be pushed by manpower;
and 4, step 4: the stretcher is assembled in the forward direction, and is fixed at the tail end of the crankshaft through a connecting bolt 7 on a piston of the stretcher, so that the piston and two positioning pins on a shell are ensured to be installed correctly;
and 5: the lengthened connecting pipe 18 is installed and connected with a manual pump 20, and meanwhile, the shell is connected with a high-pressure pump 19;
step 6: pressurizing the inner cavity of the stretcher to the value recommended by the manufacturer through a high-pressure pump 19;
and 7: pressurizing the damper and the crankshaft conical surface by using a manual pump 20 until the numerical value recommended by a manufacturer is reached;
and 8: after the stretcher housing is no longer advanced, the pressure in the manual pump 20 is released;
step 9-release of the pressure in the high-pressure pump 19 after 30 seconds, removal of the stretcher and its accessories
FIG. 4 is a schematic view of the disassembling tool for crankshaft damper of the present invention, as can be seen, the steps of the disassembling tool for crankshaft damper of the present invention are as follows:
step 1: installing a distance ring 13 and installing a transition plate 12 on the shock absorber by using an inner hexagon screw 14;
step 2: reversely mounting the stretcher on the distance ring 13, fixing the piston at the tail end of the crankshaft by using a bolt 15, and then mounting a connecting bolt 11 of the shell and the transition plate;
and step 3: the lengthened connecting pipe 18 is installed and connected with a manual pump 20, and meanwhile, the shell is connected with a high-pressure pump 19;
and 4, step 4: the conical parts of the crankshaft and the shock absorber are pressurized to the recommended value of the manufacturer by a manual pump 20;
and 5: pressurizing the inner chamber of the stretcher by using a high-pressure pump 19 until reaching a limit position;
step 6: releasing the pressure in the manual pump 20 and the high-pressure pump 19;
and 7: removing the stretcher and accessories thereof;
and 8: the shock absorber slides along the conical surface of the crankshaft until the shock absorber can be lifted by a lifting ring screw and detached.
The above is a preferred embodiment of the present invention, and the protection scope of the present invention is not limited thereby. The scope of the invention also includes other modifications and alternatives apparent to those skilled in the art.
Claims (6)
1. A disassembling tool for a crankshaft shock absorber of a diesel engine is characterized by comprising a piston, a shell, a lengthened connecting pipe, a transition plate and the like; the piston and the shell are provided with positioning pins, so that the functions of positioning the crankshaft and the shock absorber can be realized, and the piston shell assembly can be reversely assembled and is respectively used for assembly and disassembly; one end of the lengthened connecting pipe is provided with an external thread which is matched with the oil hole at the tail end of the crankshaft, and the other end of the lengthened connecting pipe is provided with an internal thread which is matched with the quick connector; the transition plate is positioned between the shell and the shock absorber, and a threaded hole and a countersunk through hole are arranged on the transition plate, so that the connection effect can be achieved.
2. The tool for disassembling and assembling the crankshaft shock absorber of the diesel engine as claimed in claim 1, wherein the piston and the housing are provided with positioning pins, so that the crankshaft and the shock absorber can be positioned, and the piston housing assembly can be reversely assembled and respectively assembled and disassembled.
3. The tool for disassembling and assembling the crankshaft shock absorber of the diesel engine as claimed in claim 2, wherein the piston and housing assembly is externally connected with a high-pressure oil pump to drive the assembling and disassembling of the shock absorber.
4. The tool for disassembling and assembling the crankshaft shock absorber of the diesel engine as claimed in claim 1, wherein one end of the lengthened connecting pipe is provided with an external thread, and the other end of the lengthened connecting pipe is provided with an internal thread, so that a manual pump and the crankshaft are connected, and the function of opening and then fastening the shock absorber pump at the tail end of the crankshaft is realized.
5. The tool for disassembling and assembling the crankshaft shock absorber of the diesel engine as claimed in claim 1, wherein the transition plate can connect the shell with different pitch circle diameters of the thread with the shock absorber.
6. The method for disassembling and assembling the disassembling and assembling tool for the crankshaft damper of the diesel engine according to claim 1, wherein the method comprises the following steps:
during assembly:
step 1: hoisting the shock absorber assembly by using the hoisting ring screw;
step 2: matching the damper with the tail end of the crankshaft until the damper is half of the thickness of the crankshaft;
and step 3: aligning the damper hole and the crankshaft pin hole with a positioning pin on the stretcher respectively, and then continuously installing the damper until the damper cannot be pushed by manpower;
and 4, step 4: the stretcher is assembled in the forward direction and fixed at the tail end of the crankshaft through a connecting bolt hole in a piston of the stretcher, so that the piston and two positioning pins on a shell are ensured to be installed correctly;
and 5: mounting the lengthened connecting pipe, connecting the lengthened connecting pipe with a manual pump, and simultaneously connecting the shell with a high-pressure pump;
step 6: pressurizing the inner cavity of the stretcher to a value recommended by a manufacturer through a high-pressure pump;
and 7: pressurizing the shock absorber and the conical surface of the crankshaft by using a manual pump until the values are recommended by a manufacturer;
and 8: releasing the pressure in the manual pump after the stretcher housing is no longer advanced;
step 9, releasing the pressure in the high-pressure pump after 30 seconds, and removing the stretcher and the accessories thereof
When the device is disassembled:
step 1: installing a distance ring and installing a transition plate on the shock absorber by utilizing an inner hexagonal screw;
step 2: reversely mounting the stretcher on the distance ring, fixing the piston at the tail end of the crankshaft by using a bolt, and then mounting a connecting bolt of the shell and the transition plate;
and step 3: mounting the lengthened connecting pipe, connecting the lengthened connecting pipe with a manual pump, and simultaneously connecting the shell with a high-pressure pump;
and 4, step 4: pressurizing the conical parts of the crankshaft and the shock absorber to a value recommended by a manufacturer by using a manual pump;
and 5: pressurizing the inner cavity of the stretcher by using a high-pressure pump until reaching a limiting position;
step 6: releasing the pressure in the manual pump and the high pressure pump;
and 7: removing the stretcher and accessories thereof;
and 8: the shock absorber slides along the conical surface of the crankshaft until the shock absorber can be lifted by a lifting ring screw and detached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917253.8A CN110744486A (en) | 2019-09-26 | 2019-09-26 | Disassembling tool and disassembling method for crankshaft damper of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917253.8A CN110744486A (en) | 2019-09-26 | 2019-09-26 | Disassembling tool and disassembling method for crankshaft damper of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110744486A true CN110744486A (en) | 2020-02-04 |
Family
ID=69277161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910917253.8A Pending CN110744486A (en) | 2019-09-26 | 2019-09-26 | Disassembling tool and disassembling method for crankshaft damper of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110744486A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654233A (en) * | 2022-04-20 | 2022-06-24 | 无锡动力工程股份有限公司 | Assembling and disassembling device and method for torsional vibration damper of diesel engine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202668031U (en) * | 2012-07-10 | 2013-01-16 | 江苏新瑞戴维布朗齿轮系统有限公司 | Disassembly and assembly structure of reduction box output shaft and flange plate |
| CN203317002U (en) * | 2013-05-21 | 2013-12-04 | 宜宾天工机械股份有限公司 | Assembly device for one-way valve of hydraulic tappet |
| CN105048187A (en) * | 2015-08-18 | 2015-11-11 | 杭州航天电子技术有限公司 | Handwheel mechanism with adjustable torque |
| CN205629097U (en) * | 2016-04-29 | 2016-10-12 | 上海晨昌精密模具有限公司 | Reverse tensile lid upgrades mould |
| CN206588572U (en) * | 2017-02-27 | 2017-10-27 | 中钢集团西安重机有限公司 | A kind of cold shears body gear wheel attaching/detaching apparatus |
| CN108252986A (en) * | 2018-03-15 | 2018-07-06 | 桂林理工大学 | Double drive controls concealed connecting device |
| US20180290271A1 (en) * | 2017-04-11 | 2018-10-11 | William R. Hendrix | Stud Installation And Removal Tool And Method of Use |
| CN209394608U (en) * | 2018-12-29 | 2019-09-17 | 福建福清核电有限公司 | A kind of generator foundation bolt stretcher |
-
2019
- 2019-09-26 CN CN201910917253.8A patent/CN110744486A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202668031U (en) * | 2012-07-10 | 2013-01-16 | 江苏新瑞戴维布朗齿轮系统有限公司 | Disassembly and assembly structure of reduction box output shaft and flange plate |
| CN203317002U (en) * | 2013-05-21 | 2013-12-04 | 宜宾天工机械股份有限公司 | Assembly device for one-way valve of hydraulic tappet |
| CN105048187A (en) * | 2015-08-18 | 2015-11-11 | 杭州航天电子技术有限公司 | Handwheel mechanism with adjustable torque |
| CN205629097U (en) * | 2016-04-29 | 2016-10-12 | 上海晨昌精密模具有限公司 | Reverse tensile lid upgrades mould |
| CN206588572U (en) * | 2017-02-27 | 2017-10-27 | 中钢集团西安重机有限公司 | A kind of cold shears body gear wheel attaching/detaching apparatus |
| US20180290271A1 (en) * | 2017-04-11 | 2018-10-11 | William R. Hendrix | Stud Installation And Removal Tool And Method of Use |
| CN108252986A (en) * | 2018-03-15 | 2018-07-06 | 桂林理工大学 | Double drive controls concealed connecting device |
| CN209394608U (en) * | 2018-12-29 | 2019-09-17 | 福建福清核电有限公司 | A kind of generator foundation bolt stretcher |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654233A (en) * | 2022-04-20 | 2022-06-24 | 无锡动力工程股份有限公司 | Assembling and disassembling device and method for torsional vibration damper of diesel engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110744486A (en) | Disassembling tool and disassembling method for crankshaft damper of diesel engine | |
| CN111300334A (en) | Mixed flow turbocharger shaft sleeve dismounting tool and method | |
| CN213946286U (en) | Disassembling tool for crankshaft damper of diesel engine | |
| CN201106620Y (en) | Internal combustion engine combined crankshaft for minitype automobile | |
| CN108915919B (en) | Common rail pump driving device of high-pressure common rail diesel engine | |
| JP6697458B2 (en) | Turbocharger flange | |
| CN217494113U (en) | Assembling and disassembling device for torsional vibration damper of diesel engine | |
| CN113211377B (en) | Tool and method for disassembling air compressing impeller of turbocharger | |
| CN210102463U (en) | Power station diesel engine bent axle transportation fixing device | |
| CN212330918U (en) | Mechanical type injection pump gear nut screws up fixing device | |
| CN111805479A (en) | Portable engine camshaft bush press-fitting mechanism | |
| CN202251819U (en) | Double-row gap gear | |
| CN210149927U (en) | Power station diesel generator pivot transportation fixing device | |
| CN107762702B (en) | Air distributor, diesel engine compressed air starting device and large diesel engine | |
| CN208502899U (en) | A kind of multi-model crankshaft driving head | |
| CN107956872B (en) | Piston and piston fork shaft connecting assembly and disassembly and assembly method thereof | |
| CN201896678U (en) | Forklift liquefied gas engine with electromagnetic type sensor bracket | |
| CN112377598A (en) | Connecting structure for integrated accessory transmission case and accessory transmission gear box | |
| CN217029092U (en) | Novel oil return pipe of supercharger | |
| CN216967659U (en) | Tool for taking out oil-pressing valve seat of oil injection pump of diesel engine | |
| CN107907830B (en) | Performance test system for starting motor | |
| CN220227110U (en) | Offset load prevention installation structure of belt pulley and crankshaft | |
| CN212177288U (en) | Assembly piston based on shaft sleeve | |
| CN211288671U (en) | Automobile engine crankshaft damping belt pulley | |
| CN215968547U (en) | Disassembly and assembly tool for driving belt pulley of engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200204 |
|
| WD01 | Invention patent application deemed withdrawn after publication |